Float and diaphragm valves

 

(57) Abstract:

The invention relates to the field of sanitary fittings, namely, valves for filling tanks level. The technical result is the creation of simple to manufacture and durable in operation of the valves. The float valve includes a housing with input and output channels, saddle, locking element and two shoulders lever, mounted on the axis on the body of the float. The locking element is made of elastic material with a reinforcing layer in the form of a membrane with a cavity in its center, which is under atmospheric pressure-filled body with shock-absorbing properties and sealed. Diaphragm valve includes a housing with input and output channels, saddle, locking element in the form of membranes and membrane chamber with an air tube. The locking element is made of elastic material with a reinforcing layer and a cavity in the center of the membrane, while the cavity under atmospheric pressure-filled body with shock-absorbing properties and sealed. Membrane Luggage is made of elastic material in the form of a corrugated air chamber with adjustable volume and hermetically fixed to the body of the air tube, which is. f-crystals, 2 Il.

The invention relates to the field of sanitary fittings, namely, valves for automatically filling containers according to the level of flush tanks, expansion tanks, etc.

The well-known float valve for flush tanks, comprising a housing with inlet, outlet channels, saddle, locking element and two shoulders lever, mounted on the axis on the body with the float /patent of Russia, 2096564, E 03 D 1/33, 1997/.

The disadvantages of this device are unreliable, short-lived operation of the slide tube and sophisticated design.

Known diaphragm valve for filling containers with water level, comprising a housing with inlet, outlet channels, saddle, locking element in the form of membranes and membrane chamber with an air tube /patent of Russia, 2123560, E 03 D 1/30, 1998/.

The disadvantage of this device is complex, material-intensive design that cannot provide reliable long-term operation.

The technical problem to be solved by the proposed float valve, is simple to manufacture and durable in operation of the float valve to automatically populate various capacities on the level. in the manufacture and durable in operation of a diaphragm valve for automatically filling containers according to the level.

The task in the part of the float valve is solved in that the float valve, comprising a housing, for example made of plastic, with input, output channels, saddle, locking element and two shoulders lever, for example of plastic, is attached to the axis on the body with the float on the long arm, the locking element is made of elastic material such as rubber with a reinforcing layer for strength, for example, made of cotton, and in the form of a membrane with a cavity in its center, which is under atmospheric pressure-filled body with shock-absorbing properties and sealed, for example vulcanized. The cavity may have a spherical shape or be made conical. Body with shock-absorbing properties may be liquid, such as mineral oil, gaseous, such as air, or foam rubber. The saddle may be provided with ribs, for example of rubber, which reduces the noise level.

The task in the part of the membrane valve is solved in that the membrane valve, comprising a housing, for example made of plastic, with input, output channels, saddle, locking element in the form of membranes and membrane chamber with an air tube, the locking element is made of elastic m is replaced by a body with shock-absorbing properties and sealed, for example vulcanized, and the membrane chamber is made of elastic material in the form of a corrugated air chamber with adjustable volume and hermetically fixed to the body of the air tube, for example a clamp, which for the regulation of its length is made telescopic, for example the main part of the plastic, and the impending part is made of rubber. The cavity may have a spherical shape or be made conical. Body with shock-absorbing properties may be liquid, such as mineral oil, gaseous, such as air, or foam rubber. Corrugated air chamber is shaped or in the form of a cylindrical canister. The saddle may be provided with ribs, for example of rubber, which reduces the noise level.

The essence of the invention shown in the drawings, where:

in Fig.1 shows a longitudinal section of the float valve and membrane with a cavity;

in Fig. 2 shows a longitudinal section of a diaphragm valve with an air chamber and telescoping air tube.

An example of implementation of the proposed solution.

Float and diaphragm valves include a housing 1 /Fig.1-2/ input 2, output 3 channels, the saddle 4 is another well-known form cavity 6 at its center, which is under atmospheric pressure filled, for example, liquid body 7, the retaining ring 8, for example of plastic, secures the membrane in the housing, two shoulders lever 9 pivoted on the axis 10 on the housing, the float 11 in the long arm can be mounted at different heights, the air chamber 12 with the changing volume of the hermetically fixed to the body 13 of the telescopic air tube 14, in which the valve body is fixed retaining ring 15, for example of plastic.

Float and diaphragm valves operate as follows.

In the empty water tank, water flows through the inlet channel 2 /of Fig.1-2/ valve 1. The membrane 5 is thus released from the pressure of the closing body, the two shoulders of the lever 9 and changes its volume air chamber 12. Water through output channel 3 will fill the flush tank to the specified level of the specified height, installed on two shoulders of the lever 9 of the float 11, and established long telescoping air tube 14. Then raised the water level float 11 short shoulder, two shoulders of the lever 9 and increased from the compressed water in the air tube 14 air its volume elastic air chamber 12 clicks convex spherical cavity 6 of the membrane 5 and the liquid, gasaubrebaze 5 to the seat 4 of the housing, and block the flow of water in the tank. In the fall of the water level in the reservoir, the capacity of the repeated cycles of filling.

The valves are durable, reliable, clearly supported in the tank specified level, simple to manufacture and require virtually no maintenance in operation, have a service life on the order of magnitude higher than its competitors.

1. Float valve, comprising a housing with inlet, outlet channels, saddle, locking element and two shoulders lever, mounted on the axis on the body with the float, wherein the closing element is made of elastic material with a reinforcing layer in the form of a membrane with a cavity in its center, which is under atmospheric pressure-filled body with shock-absorbing properties and sealed.

2. The valve p. 1, characterized in that the cavity may have a spherical shape.

3. The valve p. 1, characterized in that the cavity can be made conical.

4. The valve p. 1, characterized in that the body with shock-absorbing properties can be liquid.

5. The valve p. 1, characterized in that the body with shock-absorbing properties may be gaseous.

6. The valve p. 1, characterized in that those who m the saddle is equipped with ribs for reducing the level of noise.

8. Diaphragm valve, comprising a housing with inlet, outlet channels, saddle, locking element in the form of membranes and membrane chamber with an air tube, characterized in that the closing element is made of elastic material with a reinforcing layer and a cavity in the center of the membrane, while the cavity under atmospheric pressure-filled body with shock-absorbing properties and sealed, and the membrane chamber is made of elastic material in the form of a corrugated air chamber with adjustable volume and hermetically fixed to the body of the air tube, which for the regulation of its length is made telescopic.

9. The valve p. 8, characterized in that the cavity may have a spherical shape.

10. The valve p. 8, characterized in that the cavity can be made conical.

11. The valve p. 8, characterized in that the body with shock-absorbing properties can be liquid.

12. The valve p. 8, characterized in that the body with shock-absorbing properties may be gaseous.

13. The valve p. 8, characterized in that the body with shock-absorbing properties may be foamed through the sixth form.

15. The valve p. 8, characterized in that the corrugated air chamber made in the form of a cylindrical canister.

16. The valve p. 8, characterized in that the saddle is provided with ribs for reducing the level of noise.

 

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FIELD: hydraulic power engineering.

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2 dwg

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SUBSTANCE: valve comprises housing with inlet and outlet branch pipes and cylindrical seat, closure member that cooperates with the seat, and sleeve mounted in the tank filled with fluid. The bottom of the sleeve is provided with the opening that receives the floating valve for communication of the inner space of the sleeve with the tank when fluid is discharged from the tank. The float is mounted for permitting vertical movement inside the sleeve. The inlet branch pipe of the housing is connected with the inlet connecting pipe of the tank through a flexible pipe. The cylindrical seat is made in the housing for defining a ring space around it. The space is in communication with the inlet branch pipe. The closure member is made of a flexible flat diaphragm whose diameter is equal to the diameter of the greater step of the ring collar. The flexible diaphragm is tightly pressed to the step of greater diameter of the housing by means lid and nut.

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EFFECT: enhanced reliability.

7 dwg

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FIELD: machine building.

SUBSTANCE: present invention pertains to hydro-automation, particularly to hydraulic inlet valves with dosed supply of liquid into a filling tank, and is meant for use in systems for filling different types of reservoir with water. The filling float-valve has housing with an inlet, an outlet opening and a seat inside the housing in form of a nozzle, a gate opposite the seat, in form of an elastic membrane with thickening in the area where it is in contact with the seat. The axially moveable coupling of the gate is on an arm support. The arm support is fixed against the housing using a cap nut and is kinematically linked to the float through a lever and a tie-rod. The float is fitted with provision for vertical displacement. The perimeter of the membrane is pressed into the housing by the arm support with a cap nut, forming a cavity in the housing on the side of the seat. The cavity is linked to the outlet opening and, through the nozzle, to the inlet. There is a cavity on the arm support above the membrane. This cavity is linked to the cavity in the housing through at least one opening on the membrane. The coupling rod is pressed against the arm support using stocking type sealing rings. Inside the cavity in the housing, on the side of the seat, an encircling seat is fitted, forming an annular gap, as well as a throttle insertion which is in form of a cup. A bypass hole is made at the bottom of the latter. The perimeter of the membrane is pressed between the bottom of the cup and the arm support. An outlet opening is made in the side wall of the cup. On the inner wall of the cup and the outer side surface of the seat there are radial ribs with formation by the latter in the annular gap, a labyrinth in the cross-section of the throttling channel.

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EFFECT: protection against valve freezing at low temperatures.

4 cl, 3 dwg

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