Valve for the flush-water tank

 

(57) Abstract:

The invention relates to the field of construction, in particular for plumbing fittings, namely, valves, filling water flush tank, and can be used in the repair and reconstruction of sanitary-technical equipment. The invention consists in that in the valve of a flush tank, comprising a housing 1 with an inlet channel and an output cavity 17, the cover 2, the shutter in the form of rolling a 4 and a fixed 3 ceramic plates with off-center wall Windows, the drive shaft 2, one end of which is connected to the movable plate and the other arm with a float; a fixed plate around each window is made protrusion included in the response groove is made in the case and connected to a conductive channel 11, in the upper part of the float is made pocket and lever - channel, informing pocket float output cavity of the valve body. 5 Il.

The invention relates to the design of plumbing fittings, namely, valves, filling water flush tank, and can be used in the repair and reconstruction of sanitary-technical equipment.

Known valve, comprising a housing with inlet and outlet Glyfada of the combined state of the holes of the plates, spring-loaded piston which presses the movable plate toward the fixed [1]

The disadvantage of this design is that the fluid pressure is transmitted almost the entire area of the fixed plate, creating a great effort when turning the movable plate.

The closest in technical essence and the achieved result is a valve, which has a fixed ceramic plate is pressed to the housing sleeve. The movable plate is pressed against a fixed spring pressure of the working fluid. The shaft rotates a movable plate, passing (with gap) through the Central opening in the stationary plate [2]

The disadvantage of this valve is that the pressure of the working fluid is transmitted to the entire area of the movable plate. In addition, the movable plate is pressed against a fixed spring. The valve body must take considerable effort increases and the force (torque) to rotate the movable plate.

The essence of the invention is that the valve flush tank includes a housing with an inlet channel and an output cavity, a cover, a shutter in the form of movable and fixed ceramic plates with off-center wall Windows, drive shaft, one end of it from the Windows made the ledge, included in the response groove is made in the case and connected to the intake channel, the width of the window movable plate is equal to the diameter of the window of the fixed plate, the movable plate is on the side of the output cavity in the upper part of the float is made pocket, and the lever channel, informing the pocket of the float with the output cavity of the body.

Positive technical result is that the proposed construction of the valve for the flush-water tank allows you to reduce the amount of time required to open and close the valve, to achieve perfect sealing when the water pressure changes, improve reliability and durability.

To reduce pressure on the plate, the liquid is supplied only to one or more openings of the fixed plate, and not under all its area. This makes it possible to reduce to a minimum the force to rotate the movable plate, simultaneously reaching a constant pressing pressure of the fluid is stationary and movable plates. A slight opening of the valve is very important, since the generated force determined by the weight of the float and lever. Fixed plate make off-center protrusions, which are included in the return grooves made in corpu rubber seal.

At some point the valve is fully open, but when the issue of water float with lever continue to fall, the movable plate continues to rotate and that the valve is kept fully open, the length of the off-center bore open in the movable plate is larger than the diameter of the off-center bore open stationary plate. It is defined structurally. For example, when the diameter of the off-center bore open stationary plate is 3 mm, and the removal of the window from the center of the plate 8 mm, when the lever is at an angle equal to the 30othe length of the off-center bore open movable plate shall be not less than 1.5.

The presence of pockets in the float allows you to increase the speed of closing of the valve at the end of the filling tank. For example, pocket float with open valve fills the channel in the lever water. When the float is in an inclined state. The rising water level in the tank raises the float, turning it. At some point the water from the pocket of the float begins to turn, the speed of rise of the float lever is increased. The valve is closed, while off-center through a window of the fixed plate are closed movable plate h is agemy valve, mounted on the flush tank, a General view of Fig. 2 section a-a in Fig. 1; Fig. 3 the movable ceramic plate; Fig. 4 fixed ceramic plate; Fig. 5 is the same, the section b-B in Fig. 4.

Valve flush tank includes: a housing 1, a drive shaft 2, a fixed plate 3, the movable plate 4, a cover 5, a rubber seal 6, the lever 7, the float 8, off-center protrusions 9, off-center through a window in a fixed plate 10, the inlet channel 11, the Central hole in the movable plate for transfer of rotation 12, the off-center feed-through window movable plate 13, a pocket in the float 14, the channel in the lever 15, the tube output cavity 16, the output cavity 17, the holes for draining water from the pocket of the float 18.

The housing 1 of the valve is made with grooves in which are placed the seal 6 and the off-center protrusions 9 of the fixed plate 3. Off-center protrusions 9 perform three functions held stationary plate 3 from moving, passing the window 10 is water when you open the valve, the end surface of the protrusion presses the seal 6 to the housing 1, ensuring the tightness between the fixed plate and the housing 1.

The movable plate 4 has a Central hole tiny opens the window (Windows) 10 in a fixed plate. Hole 13 has an elongated shape, providing a state of full valve opening during the continued rotation of the lever 7. The float 8 is provided with a pocket 14, which is filled with water from an open valve. In the pocket 14, the water can flow through the channel 15 of the lever 7.

The valve works in the following way. The valve opens under the action of the weight of the float 8 and the lever 7. The water channel 11 of the valve enters the tank through the output cavity 17 of the socket 16. With a certain level of water in the tank begins to rise, the float 9, the pocket 14 is filled with water. The rate of ascent of the float, as the speed of rotation of the lever begins to decrease as soon as you begin to overlap a transmission window 10 of the fixed plate.

Upon reaching a predetermined water level in the tank from the pocket 14 of the float 8 will result in there water through the opening 18. The speed of movement of the float 8 and the lever 7 will increase, and you will be overlapping the passing of the window 10 of the fixed plate 3. The water will cease to flow into the tank.

The proposed valve flush tank has the following advantages compared with the prototype and other known technical solutions:

due to the presence of dezentrale), and not the whole area of the fixed plate, which reduces the force for opening the valve;

elongated hole in the movable plate allows the valve to remain as open as possible during the continued rotation of the movable plate;

the presence of the float pockets for water enables you to increase the speed of rotation of the lever and close the valve when the flow window in a fixed plate is almost closed.

The above advantages enable the proposed design of the valve flush tank to work reliably and durable.

Valve for a flush tank, comprising a housing with an inlet channel and an output cavity, a cover, a shutter in the form of movable and fixed ceramic plates with off-center wall Windows, drive shaft, one end of which is connected to the movable plate and the other arm with the float, wherein the fixed plate around each window is made protrusion included in the response groove is made in the case and connected to the intake channel, the width of the window movable plate is equal to the diameter of the window of the fixed plate, the movable plate is on the side of the output cavity, in the upper part of the float is made pocket and growling in the

 

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