Valve with double drain

FIELD: valving.

SUBSTANCE: valve comprises seat, overflow unit, and mechanism for lifting the closure member. The seat is secured to the bottom of the tank. The overflow unit is made of a pipe provided with a float. The closure member is mounted at the bottom end of the pipe of the overflow unit. The pipe of the overflow unit is mounted for permitting axial movement by means of the mechanism for lifting the closure member. The closure member is made of pivoting unit, connected with the overflow unit, and kinematically connected with the push-buttons of the large and small drains. The push-buttons are set in the stop bushing mounted in the tank.

EFFECT: enhanced reliability.

3 dwg

 

The invention relates to drain valves to drain connection of the capacity of different types of fluids, including for draining water from the flush tank with top start having different heights, the used, for example, for flushing toilets installed in the lavatories of buildings for various purposes.

Known the drain valve is placed in the frame, elevating mechanism mounted with the ability to interact with the actuator of the actuator, while the drain valve includes a hollow stem with an upper open end for discharge of water and sealing means mounted on the lower end of the rod, the frame is made with a pipe, combined with a drain hole or connected with the drain pipe, while the hollow rod is placed with the possibility of closing the sealing means of the passage from the bowl-shaped cavity in the socket frame and the upper end of the rod is connected with its supporting base elements (patent RU №2107130, CL F 16 K 31/18, 20.03.1998).

However, this drain valve is too bulky and has a complex design, which leads to lower reliability.

Closest to the invention to the technical essence and the achieved result is a valve with double sink, containing the saddle node of the overflow and the lifting mechanism of the locking member, a saddle secured to a bottom succinctly the tee, site outage is made in the form of a pipe and at last set the float shut-off element is mounted on the lower end of the pipe node overflow, with the tube site overflow is installed with the possibility of axial movement by means of the lifting mechanism of the locking element made in the form of a hinged node connected to the node overflow and kinematically associated with buttons big and small drain installed in enshrined in the capacity of the thrust sleeve placed over the saddle (patent RU №2107130, 20.03.1998).

This valve provides the possibility of a double drain the fluid from the tank. However, reliability is not high enough, that is because the design of the hinge mechanism is quite complex and includes two spring-loaded lever and two pendants. It also requires the alignment of the location of the holes in the lid of the tank and drain holes in the bottom of the tank, which is not always feasible.

The technical result, which directed the present invention is to improve the reliability and efficiency of the valve and enabling adjustment of the liquid has drained from the tank depending on the needs.

This technical result is achieved due to the fact that the valve with double sink includes a saddle, a node overflow and the lifting mechanism of the locking element, the ri saddle fixed in the bottom of the tank, site outage is made in the form of a pipe and at last set the float shut-off element is mounted on the lower end of the pipe node overflow, with the tube site overflow is installed with the possibility of axial movement by means of the lifting mechanism of the locking element made in the form of a hinged node connected to the node overflow and kinematically associated with buttons big and small drain installed in enshrined in the capacity of the thrust sleeve placed over the saddle, and the node has an internal overflow pipe is installed coaxially with the possibility of axial movement and fixing its position by means of the gasket relative to the tube site outage, saddle fixed glass with lid, in which the Central hole, the pipe node overflow skipped through the Central hole in the lid of the glass and the float is located inside the glass, with the glass attached to the saddle by means of a bayonet connection, the cover glass is made of two nests, each of which has a hour, and fixed on the racks resistant sleeve by threaded connection installed the adjusting sleeve fixed on the rim for the last pivot bearing, gasket sandwiched between the pipes node overflow cap nut, the ball of the IRNA unit is designed in the form of a lever, in the middle part of which is made mounted in pivoting bearing pivoting axis, one end of the lever apart in the base of the stem, which is connected with a spring-loaded relative to the thrust bearing button large plum, and click the small plum is made with stop its progress relative to the thrust bearing and the other end of the lever is connected with the upper end of the thrust, which from its lower end connected to a bracket rigidly mounted on the flange, which is made on the pipe node overflow above the glass, and the glass on the float with emphasis on the last short horizontal side are two L-shaped vertical thrust lever, vertical long side thrust levers are passed through holes made in the lid of the Cup, the horizontal and vertical sides of the thrust levers is made at an acute angle with respect to each other, the first of the thrust levers is mounted between the float and the cap nut, the height of the first thrust arm equal to the distance between the float and the coupling nut in the upper position of the float when the maximum lifted the locking element and the second thrust lever is made with an elongated inclined slot at the top of the long end of the lever, a projection on the inner side of the lever opposite the oblong holes and locking us in front of the hole is in the lid of the Cup, the opening in the cover glass for the second thrust lever is made in front of the valve, the latter can be moved along with the guide frame with cantilever axis passed through the oblong hole of the second thrust lever, and on the outside against the glass side of the guide frame is made of C-shaped clamp, which has two rigidly interconnected by additional float with the ability to adjust the height of their installation relative to the locking element, and when the button is pressed the small slope ledge on the inner side of the second thrust lever is located opposite the cap nut with a focus in the past, but by UCA second thrust a lever fixed to the holes in the lid of the Cup.

Analysis of various types of valves to drain the fluid from the tank showed that one of the main requirements is the reliability, versatility of use and efficiency when draining liquid from the tank. Performing on the trumpet node overflow flange is rigidly secured on the bracket allows you to dramatically simplify the design of the exoskeleton, which contains only one arm. At the same time it is possible to easily adjust the length of the rod that enables you to install the valve with double the Yves in containers of different heights, almost without alteration of the valve. Setting the glass on the valve seat by means of a bayonet connection allows you to easily assemble and disassemble the valve with double sink without using a special tool that dramatically reduces operating costs and allows you to quickly assemble the valve in its installation in the vessel, for example in the waste-holding tank of the toilet, and in the process of operation to quickly clean the valve or replace the damaged valve components. Install the pivot point and the buttons on the racks, which are fixed on the lid of the glass allows you to collect coaxial design that avoids distortions when lifting the locking element. Using the Union nut and gasket for fixing the position of the tubes node overflow relative to each other tightly and allows to quickly connect the pipes. Perform valve with L-shaped thrust levers in conjunction with a float located inside of the glass, and additional floats on the guide frame allows you to hold the locking element in the raised position to discharge in advance the calculated amount of liquid from the container in which you installed the valve.

Thus, achieved the goals set forth in the invention of the technical result is increased reliability of operation of the valve with dual sink the ri maintaining the efficiency of draining liquid from the tank, with a valve.

Figure 1 shows a longitudinal section of the valve with double sink. Figure 2 presents a view As in figure 1. Figure 3 presents a General view of the valve with double sink Assembly.

Valve with double sink includes a seat 1, a node overflow 2 and the lifting mechanism of the locking element 3. The seat 1 is fixed in the bottom 4 of the vessel, and the node overflow 2 made in the form of two interconnected pipes 5 and 6, and the pipe 5 (inner tube) is coaxially inserted into the pipe 6. The inner tube 5 is installed with the possibility of axial movement and fixation of his position by the gasket 7 relative to the tube 6. The locking element 3 is mounted on the lower end of the pipe 6. The inner tube 5 together with the pipe 6 is installed with the possibility of axial movement by means of the lifting mechanism of the locking element 3, made in the form of exoskeleton 17 connected to the node overflow 2 and kinematically associated with the button of a large plum 8 installed in fixed in the lid 9 of the capacity of the thrust sleeve 10, is placed over the seat 1 by means of two struts 11. On the seat 1 is fixed to the Cup 12 with the cover 13, in which the Central hole. On the pipe 6 from the side of its outer surface has a float 14. The pipe 6 has been passed through the Central hole in the lid 13 of the Cup 12 and the float 14 is located within the Tacana 12. The Cup 12 is fixed to the seat 1 by means of bayonet connections 15. On the cover 13 of the Cup 12 is two slots 16, each of which has a front 11. Fixed on the uprights 11 of the thrust sleeve 10 button 8 by threaded connection installed the adjusting sleeve 18 fixed on the rim 19, performed on the last pivot bearing 20. The gasket 7 is sandwiched between the pipes 5, 6 node overflow cap nut 21. Hinge 17 is made in the form of a lever 22, in the middle part of which is made installed in the hinge support 20 rotary axis 23. One end of the lever 22 apart in the base of the stem 24, which is connected with a spring-loaded relative to the thrust bearing 10 buttons 8 large plum and button 25 small drain the fluid from the container, the latter performed with limiter 26 of its stroke relative to the thrust bearing 10 and the other end of the lever 22 is connected with the upper end of the thrust 27, which from its lower end connected to the bracket 28 rigidly mounted on the flange 29, is made on the outer pipe 6 node overflow above the glass 12. In the Cup 12 above the float 14 with an emphasis in the last short horizontal side are two L-shaped vertical thrust lever 30 and 31. Vertical long side of the thrust levers 30 and 31 are passed through the holes drilled in the lid 13 of the Cup 12. Hori is orbital and vertical sides of the thrust levers 30 and 31 are made at an acute angle α in relation to each other. The first of the thrust levers 30 is installed between the float 14 and a coupling nut 21, the height of the first thrust lever 30 is equal to the distance between the float 14 and a coupling nut 21 in the upper position of the float 14 in the maximum raised locking element 3. The second thrust lever 31 is made from an elongated sloped hole 32 in the upper part of the long end of the lever 31, the protrusion 33 on the inner side of the arm 31 opposite oblong holes 32 and retainer mustache 34 opposite the hole in the lid 13 of the Cup 12. The hole in the lid 13 of the Cup 12 to the second thrust lever 31 is made opposite one of the uprights 11 of the valve, the latter can be moved along with the guide frame 35 with cantilever axis 36, passed through an elongated hole 32 of the second thrust lever 31, and on the outside relative to the Cup 12 side of the guide frame 35 is made of C-shaped clamp 37, which has two rigidly interconnected by additional float 38 with the ability to adjust the height of their installation relative to the locking element 3, and when the button is pressed 25 small descent ledge 33 on the inner side of the second thrust lever 31 is located opposite the cap nut 21 with emphasis on the last, but by USA 34 of the second thrust lever 31 fixed to reject the party in the cover 13 of the Cup 12.

Valve with double sink works as follows.

In the initial position, the locking element 3 lies on the saddle 1, blocking it.

For full drain the fluid from the reservoir to produce pressing the 8 button big drain on the bottom of its stroke. The button 8, moving down, moves down the rod 24 at the maximum rate. The cylinder rod 24 pushes against the lever 22. As a result of rotation of the lever 22 moves upward thrust 27, through which the bracket 28 passes upward movement of the pipe 6 node overflow, which causes the moving up of the locking element 3. At the same time when lifting pipe 6 rises up and installed on the float 14, which acts on the thrust levers 30 and 31. At the maximum height of the first thrust lever 30 through the implementation of its sides at an acute angle α in relation to each other long side goes under the cap nut 21 of the pipe 6 and thus hold the tube 6 and, consequently, the locking element 3 in the raised position. Lifting the locking element 3 leads up to the opening of the seat 1, and a drain from the tank into the liquid. The float 14 is held in the upper position of the pipes 5 and 6 with a locking element 3 after you release the button 8 large plum, pressing on which led to the opening of the drain valve. Pic is f decreasing liquid level in the vessel below the level of the float 8 and the subsequent lowering of the liquid level in the Cup 12 starts the backward movement of the float 14 and the pipe 6 node overflow under its own weight down. Move the float down 14 releases the first thrust lever 30 out of engagement with locking nut 21, which causes movement of the locking element 3 down until he falls on the saddle 1. The valve automatically returns to its original closed position.

For organization of small drain the fluid from the reservoir to produce pressing the button 25 small drain that provides movement of the button 25 in conjunction with the rod 24 to a lower depth of its stroke, which is determined by the limit switch 26. Thus, when pressing the button 25 it is moving down, moves down the rod 24 at a preset value of its stroke. The cylinder rod 24 pushes against the lever 22. As a result of rotation of the lever 22 moves upward thrust 27, through which the bracket 28 passes upward movement of the pipe 6 node overflow, which causes the moving up of the locking element 3. At the same time when lifting pipe 6 rises up and installed on the float 14, which acts on the thrust levers 30 and 31. When reaching the set button 25 height first thrust lever 30 does not come with the long side under the cap nut 21 of the pipe 6. When this second thrust lever 31 rises to a height of the protrusion 33, which is located under the locking nut 21. At the same time the second thrust lever 31 being in engagement with the guide frame 35, raises the top additional floats 38, the latter presses the second thrust lever 31 and thus holds the outer tube 6 and, consequently, the locking element 3 in the raised position. Lifting the locking element 3 leads up to the opening of the seat 1, and a drain from the tank into the liquid. The float 14 and additional floats 38 held in the raised position of the pipes 5 and 6 with a locking element 3 after you release the button 25 small plum, pressing on which led to the opening of the valve. After reduction of the level of liquid medium in the vessel below the level of the floats 38 starts the backward movement of additional floats down 38. Moving additional floats down 38 releases the second thrust lever 31 from engagement with locking nut 21, which causes movement of the locking element 3 down until he falls on the saddle 1. The valve automatically returns to its original closed position, and the capacitance produced draining, a certain level of placement of additional floats 38.

The present invention can be used wherever you want automatic maintenance in the capacity of a specific liquid level.

Valve with double sink, containing the saddle node of the overflow and the lifting mechanism of the locking element, while the saddle is fixed in the bottom of the vessel, a node overflow is ispolnen in the form of a pipe and on the last set float the locking element is mounted on the lower end of the pipe node overflow, with the tube site overflow is installed with the possibility of axial movement by means of the lifting mechanism of the locking element made in the form of a hinged node connected to the node overflow and kinematically associated with buttons big and small drain installed in enshrined in the capacity of the thrust sleeve placed over the saddle, characterized in that the node has an internal overflow pipe is installed coaxially with the possibility of axial movement and fixing its position by means of the gasket relative to the tube site outage, saddle fixed glass cover, which made the Central hole tube site outage has been passed through the Central hole in the lid of the glass and the float is located inside the glass, with the glass attached to the saddle by means of a bayonet connection, the cover glass is made of two nests, each of which has a hour, and fixed on the racks resistant sleeve by threaded connection installed the adjusting sleeve fixed on the rim for the last pivot bearing, gasket sandwiched between the pipes node overflow cap nut, hinge made in the form of a lever, in the middle part of which is made mounted in pivoting bearing pivoting axis, one end of the lever apart in the base of the stem, which is connected with a spring-loaded relative to the thrust bearing button large plum, and click the small plum is made with stop its progress relative to the thrust bearing and the other end of the lever is connected with the upper end of the thrust, which from its lower end connected to a bracket rigidly mounted on the flange, which is made on the pipe node overflow above the glass, and the glass on the float with emphasis on the last short horizontal side are two L-shaped vertical thrust lever, vertical long side of the thrust levers are passed through holes made in the lid of the Cup, horizontal and vertical sides of the thrust levers is made at an acute angle with respect to each other, the first of the thrust levers is mounted between the float and the cap nut, the height of the first thrust arm equal to the distance between the float and the coupling nut in the upper position of the float when the maximum lifted the locking element and the second thrust lever is made with an elongated inclined slot at the top of the long end of the lever, a projection on the inner side of the lever opposite the oblong holes and locking us in front of the hole in the lid of the Cup, with a hole in the lid of the Cup for the second thrust lever is ipodnano in front of the valve, at last they can move along with the guide frame with cantilever axis passed through the oblong hole of the second thrust lever, and on the outside against the glass side of the guide frame is made of C-shaped clamp, which has two rigidly interconnected extra float with the ability to adjust the height of their installation relative to the locking element, and when the button is pressed the small slope ledge on the inner side of the second thrust lever is located opposite the cap nut with a focus in the past, but by UCA second thrust lever fixed to the holes in the lid of the Cup.



 

Same patents:

FIELD: valving.

SUBSTANCE: straightway stop valve comprises housing with inlet pressure port and outlet port for flowing fluid. The housing receives closure member, driving link of the closure member connected with the handle for valve control, and single-acting positive-displacement servomotor. The pressure chamber of the servomotor is in communication with the inlet port. The straightway stop valve is provided with the preliminary loaded flexible member mounted inside the housing. The movable outlet link of the flexible member is made for permitting single action on the driving link of the closure member and its movement under the action of the flexible member from its any position to the closure position of the closure member. The single-acting positive-displacement servomotor is made so that, under the action of pressure, the pressure chamber provides the action of its output link on the output link of the flexible member directed oppositely to the direction of flexible force of the flexible member and movement of the output link in the position in which it does not act on the driving link of the closure member and driving link can freely move under the external control action between the closure position and open position of the closure member. Under the action of pressure in the pressure chamber, the output link of the flexible member is held in the mentioned above position. When there is no pressure, the output link of the positive-displacement servomotor together with the driving link returns under the action of the flexible member to the closure position of the closure member.

EFFECT: enhanced reliability.

Drain valve // 2248488

FIELD: mechanical engineering; liquid materials handling facilities.

SUBSTANCE: proposed drain valve is design for organization of draining liquids of different type from containers. Proposed drain valve has seat secured in bottom of reservoir, cup installed on seat and overflow unit. The latter contains axially movable tube. Float arranged in cup is secured on outer surface of tube. Shutoff member is mounted on lower end of tube. Overflow unit is passed for axial displacement through cup. Overflow unit is mechanically coupled with rod of shutoff member lift handle. Cup is secured on seat by means of bayonet joint. Overflow unit is furnished additionally with inner tube. The latter is partially arranged inside overflow unit tube. Inner tube is installed for axial displacement and subsequent fixing in position relative to overflow unit tube by means of union nut and sealing gasket. The latter is clamed between tubes of overflow unit by union nut. Two diametrically opposite brackets are made on overflow unit tube from side of its upper end. Tie-rod is secured in each bracket from side of lower end. Upper end of tie-rods is secured in clamp. Longitudinal cut is made on free end of rod forming, at least, two cantilever flexible lobes. Each lobe is made in form of upward widening stop from outer side. Clamp is fitted on rod through stops on flexible lobes with possibility of action onto clap when shutoff member of drain valve is lifted by its handle.

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1 dwg

Drain valve // 2248487

FIELD: mechanical engineering; liquid materials handling facilities.

SUBSTANCE: proposed drain valve has seat secured in reservoir bottom and cup with lid provided with central hole. Overflow unit and shutoff member lifting mechanism are provided. Cup is secured on seat. Overflow unit is made in form of two coaxially arranged inner and outer tubes. Inner tube is installed for axial displacement and fixing relative to outer tube. Float is secured on outer tube from side of its outer surface. Shutoff member is installed on lower end of outer tube. Outer tube is installed for axial displacement and is passed through central hole in cup lid. Float is arranged inside cup. Shutoff member lifting mechanism is made in form of hinge unit connected by tie-rod with overflow unit and mechanically coupled with pushbutton. Pushbutton is installed in reservoir cover by means of thrust bushing. Cup is secured on seat by bayonet joint. Two seats are made on cup lid. Post is secured in each seat. Adjusting bushing is secured on posts. Said bushing is connected by threaded joint with thrust bushing of pushbutton. Rim is secured on adjusting bushing. Hinge support is made on rim. Position of inner tube of overflow unit is fixed relative to outer tube of overflow unit by means of union nut and sealing gasket. Said gasket is clamped by union nut between tube of overflow unit. Hinge unit is made in form of lever. Rotary axle is installed in middle part of lever in hinge support. One end of lever thrust against base of rod. Rod is connected with pushbutton spring-loaded relative to thrust bushing. Other end of lever is connected with upper end of tie-rod. Said tie-rod is connected with -shaped lever from side of its lower end. Said lever is rigidly secured on bracket. The latter is made on outer tube of overflow unit higher than cup.

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1 dwg

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Flushing fixture // 2250310

FIELD: sanitary equipment, particularly flushing tanks with upper input for flushing lavatory pans and similar sanitary devices installed in lavatories of multipurpose buildings.

SUBSTANCE: flushing fixture includes case with central guiding means. Case is installed inside flushing tank and connected with outlet orifice thereof. Fixture also comprises overflow unit having shutoff valve, overflow unit actuation leverage, pusher and double flushing button. Leverage is installed on body with central guiding means and made as levers rotating in vertical plane and as spring blades cooperating with shutoff valve. Overflow unit is made as two coaxial tubes mutually adjustable in length. Secured to lower end of one tube is shutoff valve. Pusher may be adjusted in length and is installed inside overflow unit so that pusher may cooperate with flushing button by upper pusher end and with leverage by lower end thereof. Leverage may be arranged at shutoff valve level.

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The invention relates to drain valves for sanitary-technical equipment - flush tank with top and start a different height, used for flushing toilet bowls, outdoor bowls and vidanov installed in the lavatories of various buildings

Flushing fixture // 2250310

FIELD: sanitary equipment, particularly flushing tanks with upper input for flushing lavatory pans and similar sanitary devices installed in lavatories of multipurpose buildings.

SUBSTANCE: flushing fixture includes case with central guiding means. Case is installed inside flushing tank and connected with outlet orifice thereof. Fixture also comprises overflow unit having shutoff valve, overflow unit actuation leverage, pusher and double flushing button. Leverage is installed on body with central guiding means and made as levers rotating in vertical plane and as spring blades cooperating with shutoff valve. Overflow unit is made as two coaxial tubes mutually adjustable in length. Secured to lower end of one tube is shutoff valve. Pusher may be adjusted in length and is installed inside overflow unit so that pusher may cooperate with flushing button by upper pusher end and with leverage by lower end thereof. Leverage may be arranged at shutoff valve level.

EFFECT: simplified structure, assemblage and regulation, possibility to use thereof in flushing tanks of different heights.

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FIELD: valving.

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EFFECT: enhanced reliability.

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Drain fittings // 2283928

FIELD: sanitary equipment, particularly drain means for flushing tanks, floor-mounted bowls and so on.

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FIELD: sanitary equipment, particularly flushing valves for outlets and arrangement of outlet valves.

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FIELD: mechanics.

SUBSTANCE: double-wash-off valve comprises seat, spillover assembly and shut-off element-lifting mechanism. The seat is fixed at flush tank bottom and incorporates cylindrical shell. The shell bottom is furnished with openings, their upper part communicating with rectangular slots made in the shell wall. The shell accommodates cover enveloping, with a gap, outer pipe and representing barrel. The aforesaid gap makes 0.06 to 0.012 of cover hole diameter. X-bar passes through the inner pipe. The bar lower part rests upon the ledges made inside the aforesaid seat and on the flush hole cylindrical surface. There are hooks on one of the bar walls. The bar is coupled with an extension arm furnished with rectangular holes for the arm to be fitted on aforesaid hooks. Two upper hooks have flanges for the extension arm to be fixed relative to the X-bar. The extension arm upper part has a support bracket with two cylindrical pins mounted one above the other. The aforesaid lifting mechanism represents parallel active and passive levers fitted onto said pins. The active lever represents rocker, its one end being articulated with a radial bracket arranged on the cap nut jointing the spillover assembly pipes. The rocker other end and the passive lever end are articulated with the vertical pushrod, its upper end being sharpened. The major wash-off push button is spring-loaded towards the thrust sleeve with the help of C-like spring and connected with the hollow foot receiving the screw furnished with thrust disk on its lower end. The said disk features corrugated lower surface and circular collar arranged along the disk edges on the corrugated side. The disk rests upon the vertical pushrod sharpened end in its top position before flushing liquid from the flush tank. There are ledges limiting the travel of the major wash-off push button arranged on the lower part of the thrust sleeve. The foot inner surface has radial flexible ribs resting upon the screw screwed into the foot to lock the screw relative to the foot.

EFFECT: higher reliability.

4 cl, 7 dwg

FIELD: construction.

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EFFECT: higher reliability of device.

14 cl, 5 dwg

Flush tank // 2422596

FIELD: construction.

SUBSTANCE: tank comprises a vessel with devices of its filling and drain. The body is arranged in the form of a toroidal chamber 1 with a rigidly mounted partition 10 and a piston 9 installed in it with the possibility of reciprocal motion, which in extreme positions interacts by one of two opposite mutually spring-loaded valves 24 of counterpressure to its displacement, with a slide valve 17 of a hydraulic distributor, installed in the partition and connecting two cavities formed by walls of the partition and the piston, alternately - with inlet and outlet holes.

EFFECT: reduced volume of water due the possibility to control its flow and using its flow during wastes direction into a toilet sink, but not afterwards.

Drain valve // 2248487

FIELD: mechanical engineering; liquid materials handling facilities.

SUBSTANCE: proposed drain valve has seat secured in reservoir bottom and cup with lid provided with central hole. Overflow unit and shutoff member lifting mechanism are provided. Cup is secured on seat. Overflow unit is made in form of two coaxially arranged inner and outer tubes. Inner tube is installed for axial displacement and fixing relative to outer tube. Float is secured on outer tube from side of its outer surface. Shutoff member is installed on lower end of outer tube. Outer tube is installed for axial displacement and is passed through central hole in cup lid. Float is arranged inside cup. Shutoff member lifting mechanism is made in form of hinge unit connected by tie-rod with overflow unit and mechanically coupled with pushbutton. Pushbutton is installed in reservoir cover by means of thrust bushing. Cup is secured on seat by bayonet joint. Two seats are made on cup lid. Post is secured in each seat. Adjusting bushing is secured on posts. Said bushing is connected by threaded joint with thrust bushing of pushbutton. Rim is secured on adjusting bushing. Hinge support is made on rim. Position of inner tube of overflow unit is fixed relative to outer tube of overflow unit by means of union nut and sealing gasket. Said gasket is clamped by union nut between tube of overflow unit. Hinge unit is made in form of lever. Rotary axle is installed in middle part of lever in hinge support. One end of lever thrust against base of rod. Rod is connected with pushbutton spring-loaded relative to thrust bushing. Other end of lever is connected with upper end of tie-rod. Said tie-rod is connected with -shaped lever from side of its lower end. Said lever is rigidly secured on bracket. The latter is made on outer tube of overflow unit higher than cup.

EFFECT: improved reliability of drain valve owing to simplified design and provision of coaxial arrangement of pushbutton of hinge unit drive and overflow unit.

1 dwg

Drain valve // 2248488

FIELD: mechanical engineering; liquid materials handling facilities.

SUBSTANCE: proposed drain valve is design for organization of draining liquids of different type from containers. Proposed drain valve has seat secured in bottom of reservoir, cup installed on seat and overflow unit. The latter contains axially movable tube. Float arranged in cup is secured on outer surface of tube. Shutoff member is mounted on lower end of tube. Overflow unit is passed for axial displacement through cup. Overflow unit is mechanically coupled with rod of shutoff member lift handle. Cup is secured on seat by means of bayonet joint. Overflow unit is furnished additionally with inner tube. The latter is partially arranged inside overflow unit tube. Inner tube is installed for axial displacement and subsequent fixing in position relative to overflow unit tube by means of union nut and sealing gasket. The latter is clamed between tubes of overflow unit by union nut. Two diametrically opposite brackets are made on overflow unit tube from side of its upper end. Tie-rod is secured in each bracket from side of lower end. Upper end of tie-rods is secured in clamp. Longitudinal cut is made on free end of rod forming, at least, two cantilever flexible lobes. Each lobe is made in form of upward widening stop from outer side. Clamp is fitted on rod through stops on flexible lobes with possibility of action onto clap when shutoff member of drain valve is lifted by its handle.

EFFECT: improved reliability of drain valve owing to simplified design and overflow unit tube made symmetrical and adjustable in height suspension of overflow unit and possibility of its mounting in reservoirs differing n height.

1 dwg

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