WO2023082338A1

WO2023082338A1 - Water-bellows-driven water tank flush valve

Info

Publication number: WO2023082338A1
Application number: PCT/CN2021/132918
Authority: WO
Inventors: 王卫东; 刘伟; 刘录发; 张长坤; 吴延霞; 张琦; 马洪新; 夏宇敬; 李丽; 李伟; 高兴超; 史振萍; 杨和利
Original assignee: 德州学院
Priority date: 2021-11-09
Filing date: 2021-11-24
Publication date: 2023-05-19
Also published as: CN216379803U

Abstract

A water-bellows-driven water tank flush valve, used for controlling the process of flushing a toilet water tank, the flush valve having only one button and being able to control the amount of water flushed from the water tank in accordance with the depth to which the button is pressed; moreover, the button is extremely light, and only requires 0.1 N of force to be moved when pressed. The flush valve has a water bellows (13), the water bellows (13) is connected to a valve core via a rope lever, and the water bellows (13) is flattened by the pressure of the water in the toilet water tank, thus driving the valve core of the flush valve to open. A control valve (15) is connected to the water bellows (13), and controls the input and output of the water in the water bellows (13). A button (7) controls the action of the control valve (15), and the depth to which the button (7) is pressed controls the degree to which the control valve (15) opens when inputting water into the water bellows (13), thus controlling the amount of water flushed by the water tank.

Description

Bladder driven water tank drain valve

technical field

The invention relates to a water bag-driven water tank drain valve, which is mainly used for drain control of a toilet water tank and belongs to the technical field of mechanical engineering.

Background technique

At present, the common toilet water tank drain valve generally has two buttons of full row and half row. This kind of drain valve has only two choices when flushing water, either to drain all the water in the whole tank, or to drain half of it.

technical solution

In order to overcome the deficiency of the existing common toilet water tank drain valve, the present invention designs a water bag-driven water tank drain valve. The drain valve has only one button, which can control the drainage of the water tank according to the depth of pressing the button, and the button is very light, and can be pressed with only 0.1N force.

The technical solution adopted to solve the technical problem: as shown in Figure 1, Figure 2, and Figure 3, the drain valve has a water bag, which is connected to the valve core through a rope and a lever, and the water bag is pressed by the pressure of the water in the toilet tank. flat, thereby driving the spool of the drain valve to open. The control valve is connected with the water bag to control the water in and out of the water bag. The button controls the action of the control valve, and the depth at which the button is pressed controls the opening of the control valve when water enters the water bag, thereby controlling the displacement of the water tank.

Beneficial effect

The drain valve has only one button, which can control the drainage of the water tank according to the depth of pressing the button, and the button is particularly light.

Description of drawings

Fig. 1 is the structural schematic diagram of the invented drain valve in the closed state

Fig. 2 is an axonometric view of the inventive drain valve after removing parts such as the shell button

Figure 3 is the spool assembly

Figure 4 is the valve seat

Figure 5 is the bottom plate

Figure 6 is the shell control valve and other parts

Figure 7 is the upper stem

Figure 8 is a sliding valve stem

Figure 9 is the driving lever

Figure 10 is the spool locking mechanism

Figure 11 is the button

Figure 12 is the limit rod

Figure 13 is the locking lever

Figure 14 is the release lever

Marks in the figure: 1. water tank sealing ring, 2. valve seat, 201. water bladder seat, 202. water inlet hole, 203. drain hole, 3. A shaft, 4. B shaft, 5. C shaft, 6. spring A, 7. Button, 701. Limit lever pressing point, 702. Control end pressing point, 8. Button shell, 9. Housing, 10. D shaft, 11. Driving lever, 1101. Valve closing protrusion, 12. Pull wire , 13. Water bladder, 14. Rocker arm, 15. Control valve, 1501. Water inlet pipe, 1502. Drain pipe, 1503. Inlet and drain pipe, 16. Spring B, 17. Return lever, 18. Lower claw, 19 .Connecting rod, 20. Closing valve arm, 21. Upper claw, 22. Pull rope, 23. Release lever, 2301. Swing finger, 24. Bottom plate, 25. Locking lever, 2501. Locking end, 2502. Fitting Heavy, 26. Limit rod, 2601. Limit protrusion, 27. Drain valve sealing ring, 28. Square pin, 29. E shaft, 30. Spring C, 31. Sliding valve stem, 32. Upper valve stem, 33 . Lower stem, 34. F shaft, 35. G shaft, 36. Valve plate.

Embodiments of the present invention

As shown in Fig. 1 Fig. 2 Fig. 3, this invention mainly is by, valve seat (2), base plate (24), housing (9), spool, spool driving mechanism, spool locking mechanism and control mechanism form.

As shown in Figure 4, the valve seat (2) is the installation basis of the drain valve, which is fixed on the drain outlet of the toilet tank, and the water tank sealing ring (1) realizes the seal with the toilet tank, and there is a vertical circle in the middle Shape drain hole (203), has 4 square water inlet holes (202) on the circumferential direction, also has a circular water bag seat (201) on the side. Base plate (24), housing (9) and water bladder (13) are all installed on the valve seat (2).

As shown in Figure 5, the bottom plate (24) is a disc-shaped part, and there is a guiding square hole of the valve core in the middle, and a return lever (17), a release lever (23), a locking lever (25), a spring B ( 16) of the mounting bracket and the guide bracket of the limit rod (26).

As shown in Figure 6, the housing (9) is a cylindrical part, above the base plate (24), and is installed on the valve seat (2) together with the base plate (24).

As shown in Figure 3, the spool consists of a sliding valve stem (31), an upper valve stem (32), a lower valve stem (33), a valve plate (36), a square pin (28), a spring C (30), a drain valve Sealing ring (27) forms. Valve plate (36) is a disc-shaped part, and drain valve sealing ring (27) is installed below, links to each other with lower valve stem (33) by square pin (28) above. The bottom of the lower valve stem (33) is connected with the valve plate (36), and the top is slidingly fitted with the upper valve stem (32). There is an elongated hole above the lower valve stem (33), and the F-axis (34) is connected to the upper valve stem (34) in this elongated hole. Valve stem (32) is connected. As shown in Fig. 7 and Fig. 8, the sliding valve stem (31) is inserted into the upper valve stem (32), and a sliding fit is adopted between the two, and tensioned by a spring C (30).

Spool driving mechanism is made up of water bladder (13), backguy (12), driving lever (11), spring A (6), stay rope (22), D shaft (10), B shaft (4). Water bladder (13) is rubber bellows, and the upper end is closed, and the lower end is open, and the lower end is sealed with water bladder seat (201), and an ear on the upper surface is connected with backguy (12). One end of the driving lever (11) is connected with the stay wire (12), and the other end is connected with the spring A (6) and the stay cord (22). There is a drooping arm at the other end, and there is a closing valve protrusion (1101) at the lower end of the drooping arm. When the drain valve is closed, the valve closing protrusion (1101) is directly below the valve closing arm (20), and when the drain valve is opened, the valve closing protrusion (1101) is directly above the valve closing arm (20). There is an open hole in the center of the driving lever (11) to cooperate with the D shaft (10) to form the fulcrum of the lever. The lower end of stay cord (22) is connected with sliding valve stem (31). One end of the spring A (6) is connected to the drive lever (11) and the other end is connected to the B shaft (4). Both the D axis (10) and the B axis (4) are fixed on the housing (9).

As shown in Figure 10, the spool locking mechanism is a 4-bar mechanism, which consists of the lower claw (18), connecting rod (19), upper claw (21), valve closing arm (20), A-axis (3) , C-axis (5) composition. The following claw (18) has a C type mounting hole, a triangular claw is arranged below the hole, and a rocking bar is arranged on the side of the hole, and the C type mounting hole cooperates with the A shaft (3). Last machine claw (21) has a C type installation hole, a hook shape machine claw is arranged below the hole, and a rocking bar is arranged on the side of hole, and C type installation hole cooperates with C axle (5). There is a C-shaped hole at one end of the valve-closing arm (20), which is fitted with the C-shaped mounting hole of the upper claw (21) and installed on the C-axis (5). The valve-closing arm (20) is opposite to the upper claw (21) It can swing up 90° at the position shown in Fig. 10 . Connect with connecting rod (19) between the rocking bar of last claw (21) and following claw (18). Both the A shaft (3) and the C shaft (5) are fixed on the housing (9).

The control mechanism consists of control valve (15), rocking arm (14), button (7), button shell (8), return lever (17), limit lever (26), locking lever (25), release lever ( 23), spring B (16) is formed. The control valve (15) is a two-position three-way valve, and its internal structure is the same as that on the market. It has three nozzles respectively connected to the water inlet pipe (1501), the drain pipe (1502) and the inlet and outlet pipes (1503). Pipe (1503) is communicated with water bladder seat (201), drainpipe (1502) links to each other with valve seat (2) and leads to the below of valve plate (36), and the opening of water inlet pipe (1501) is at the bottom of toilet tank. Rocking arm (14) one end links to each other with spring B (16) by spring seat, is called spring end, and the other end is called control end. The middle part of the rocker arm (14) is fixedly connected with the valve shaft of the control valve (15). When the control end is tilted upward (as shown in Figure 2), it is the water inlet position of the water bag (13). At this time, the water inlet pipe (1501) It is connected with the inlet and outlet pipes (1503), and when the control end is inclined downward, it is the drainage position of the water bag (13). At this moment, the outlet pipe (1502) is connected with the inlet and outlet pipes (1503). Control valve (15) is fixedly installed in the bottom of casing (9). As shown in FIG. 11 , the button ( 7 ) protrudes downwards from a bar, and the bottom end of the bar has a pressing point ( 701 ) of a stop bar and a pressing point ( 702 ) of a control end. In the drain valve, the pressing point (701) of the limit rod is directly above the limit rod (26), and the pressing point (702) of the control end is directly above the control end of the rocker arm (14). The key (7) is installed in the key shell (8), and a return spring is housed between the key shell and the key shell. Button shell (8) is contained in the top of housing (9). Return lever (17) one end is hinged with lower valve stem (33) by G shaft (35), and the other end is directly above the spring end of rocking arm (14), and the center is supported on the return lever mounting bracket of base plate (24). As shown in Fig. 12, the limiting rod (26) is a square bar with a limiting protrusion (2601) on the upper part. Limit bar (26) is installed in the bar guide bracket of base plate (24), and can slide up and down, and return spring is installed below the limit bar (26). In this drain valve, the stop projection (2601) is directly above the control end of the rocker arm (14). As shown in Figure 13, the locking lever (25) is a rod-shaped part, one end is a locking end (2501) and the other end is a counterweight end, and there is a round hole for supporting in the middle. It is supported on the locking rod mounting bracket of the bottom plate (24) through the support round hole in the middle, and its locking end (2501) is obliquely pressed downward against the side of the limit rod (26). With counterweight (2502). As shown in Figure 14, the release lever (23) is a rod-shaped part, the left end is hinged with the lower valve stem (33) through the E shaft (29), and the center is supported on the release lever mounting bracket of the base plate (24) with a long hole. A swing finger (2301) is hinged at the right end. A return spring is installed between the swing finger (2301) and the release lever (23). When no external force is applied, the swing finger (2301) is flush with the upper surface of the release lever (23). The position shown in Figure 14 can be flipped up 90 degrees, but not down. When the drain valve of the present invention is closed, the swing finger (2301) is above the side of the counterweight end of the locking rod (25). Spring B (16) links to each other with rocking arm (14) by spring seat one end, and one end links to each other with the spring B mounting bracket on the base plate (24).

working principle

1. Drain valve opening process

When we press the button (7) by hand, the button (7) moves downward, the control end pressing point (702) on the button (7) pushes the control end of the rocker arm (14) to swing downward, and the limit lever presses Point (701) pushes the limit rod (26) to slide downward. When the control end of rocking arm (14) swings over horizontal position, under the effect of spring B (16), continue to swing down to lowest point, be in water bag (13) drainage position. When the button (7) reaches a certain depth, the button (7) is released, and the button (7) returns to its original position under the action of the return spring. The limit lever (26) is locked by the locking lever (25).

At this time, the control valve (15) connects the drain pipe (1502) with the inlet and outlet pipe (1503), and under the pressure of the water in the toilet tank, the water in the water bag (13) is discharged to the toilet, and the water bag (13) is drained to the toilet. Squash. The water bladder (13) pulls the sliding valve stem (31) through the pull wire (12), the driving lever (11) and the pull rope (22), at this time the upper valve stem (32) is blocked by the lower claw (18) and cannot move upward . The sliding valve stem (31) overcomes the pulling force of the spring C (30) and continues to slide upwards to contact the slope of the upper claw (21), pushing the upper claw (21) to swing outward, and the upper claw (21) passes through the connecting rod (19 ) drives the lower claw (18) to swing outwards, releasing the upper valve stem (32). The upper valve stem (32) drives the lower valve stem (33) and the valve plate (36) to move upward rapidly under the action of the spring C (30), the drain valve is opened, and the water in the toilet tank passes through the inlet on the valve seat (2). The water hole (202) and the drainage hole (203) enter the toilet. Sliding valve stem (31) continues to move and arrives at the top of upper machine claw (21) and is hung up by upper machine claw (21).

When the water bag (13) is being flattened, the valve closing protrusion (1101) of the drive lever (11) moves upwards to contact the valve closing arm (20). The valve closing arm (20) swings upwards, the valve closing protrusion (1101) reaches the top of the valve closing arm (20), and then the valve closing arm (20) returns under the action of gravity.

2. Drain valve closing process

The upward movement of the lower valve rod (33) drives the release lever (23) and the return lever (17) to swing. The swing of the release lever (23) makes the swing finger (2301) touch the locking lever (25) and swing upwards, thereby sliding down to the bottom of the locking lever (25), and then straightening. Return lever (17) swings and presses down the spring end of rocker arm (14), jumps to the water inlet position of water bag (13) under the effect of spring B (16), at this moment the control end of rocker arm (14) and The limit protrusion (2601) of the limit rod (26) contacts, so the height of the position of the limit rod (26) determines the opening of the control valve (15) when the water bag (13) enters the water, the higher the position, the higher the opening. The greater the degree. At this time, the pressure inside and outside the water bag (13) is equal, and under the elastic force of the water bag itself and the pulling force of the spring A (6), the water in the toilet tank passes through the water inlet pipe (1501), the control valve (15), the inlet and outlet pipes ( 1503) enters the water bag (13), the water bag (13) returns gradually, and the valve-closing projection (1101) of the drive lever (11) moves downward to contact the valve-closing arm (20). The valve closing arm (20) swings downward under the promotion of the valve closing protrusion (1101), thereby driving the upper claw (21) to swing. The upper claw (21) releases the sliding valve stem (31), and the spool falls to close the drain valve under the action of gravity and water pressure.

The downward movement of the spool drives the return lever (17) and the release lever (23) to swing, and the swing finger (2301) of the release lever (23) pushes the counterweight end of the lock lever (25) to swing upward, and the lock end ( 2501) is out of contact with the stop rod (26), and the stop rod (26) returns under the effect of the return spring.

It can be seen from the whole working process that the depth of pressing the button (7) controls the position of the limit rod (26), thereby controlling the opening of the control valve (15), thereby controlling the rebound speed of the water bladder (13), thereby Determines the time for the valve-closing projection (1101) to move downward and the valve-closing arm (20) to contact the release spool, that is, the time of the drainage process, thereby controlling the drainage.

Industrial Applicability

The invention is a water bag-driven water tank drainage valve, which can be used in the drainage process of various water tanks, and is mainly used in toilet water tanks. The drain valve has only one button, which can control the drainage of the water tank according to the depth of pressing the button, and the button is very light, and can be pressed with only 0.1N force. Wide range of applications and strong industrial applicability.

Claims

A water bladder-driven water tank drain valve is composed of a valve seat (2), a bottom plate (24), a casing (9), a valve core, a valve core driving mechanism, a valve core locking mechanism and a control mechanism, and is characterized in that:

The valve seat (2) is the installation base of the drain valve, and has a circular water bag seat (201) on the side;

The bottom plate (24) is a disc-shaped part, with a guide square hole for the spool in the middle, on which there are return lever (17), release lever (23), locking lever (25), spring B (16) mounting bracket and The guide bracket of limit rod (26);

The spool is composed of a sliding valve stem (31), an upper valve stem (32), a lower valve stem (33), a valve plate (36), a square pin (28), a spring C (30), and a drain valve sealing ring (27) ; The valve plate (36) is a disc-shaped part, and the drain valve sealing ring (27) is installed below, and the top is connected with the lower valve stem (33) by a square pin (28); the lower valve stem (33) is connected to the valve plate ( 36) is connected to each other, and the upper valve stem (32) is slidably matched, and there is a long hole above the lower valve stem (33), and the F shaft (34) is connected with the upper valve stem (32) in this long hole; the sliding valve stem ( 31) Insert it into the upper valve stem (32), adopt a sliding fit between the two, and tighten it with a spring C (30);

Spool driving mechanism is made up of water bag (13), stay wire (12), driving lever (11), spring A (6), stay cord (22), D shaft (10), B shaft (4); 13) is a rubber bellows, the upper end is closed, the lower end is open, the lower end is in sealing connection with the water bag seat (201), and an ear on the upper surface is connected with the backguy (12); one end of the driving lever (11) is connected with the backguy (12), and the other One end is connected with spring A (6) and stay cord (22), and there is a drooping arm on the other end, and there is a valve closing protrusion (1101) at the lower end of the drooping arm; when the drain valve is closed, the valve closing protrusion (1101) is closing the valve. Just below the arm (20), when the drain valve is opened, the valve-closing protrusion (1101) is directly above the valve-closing arm (20); there is an open hole in the middle of the driving lever (11) to cooperate with the D-axis (10) to form The fulcrum of the lever; the lower end of the pull cord (22) is connected to the sliding valve stem (31); one end of the spring A (6) is connected to the drive lever (11) and the other end is connected to the B shaft (4); the D shaft (10) and the B shaft (4 ) are all fixed on the housing (9);

The spool locking mechanism is a 4-bar mechanism, which consists of the lower claw (18), connecting rod (19), upper claw (21), valve closing arm (20), A-axis (3), and C-axis (5). Composition; the lower claw (18) has a C-shaped mounting hole, a triangular claw is arranged below the hole, and a rocker is arranged on the side of the hole, and the C-shaped mounting hole is matched with the A-axis (3); the upper claw (21) There is a C-shaped mounting hole, a hook-shaped claw is arranged below the hole, and a rocker is arranged on the side of the hole, and the C-shaped mounting hole is matched with the C-axis (5); there is a C-shaped hole at one end of the valve closing arm (20), This C-type hole cooperates with the C-type mounting hole of the upper machine jaw (21) and is installed on the C-axis (5), and the valve closing arm (20) can swing upwards 90° relative to the upper machine jaw (21); the upper machine jaw ( 21) is connected with the rocker of the lower jaw (18) with a connecting rod (19); A-axis (3) and C-axis (5) are fixed on the housing (9);

The control mechanism consists of control valve (15), rocking arm (14), button (7), button shell (8), return lever (17), limit lever (26), locking lever (25), release lever ( 23), spring B (16); the control valve (15) is a two-position three-way valve, its internal structure is the same as that on the market, and it has three nozzles respectively connected to the water inlet pipe (1501) and the drain pipe (1502) And the inlet and outlet pipes (1503), the inlet and outlet pipes (1503) are connected with the water bag seat (201), the outlet pipe (1502) is connected with the valve seat (2) and lead to the bottom of the valve plate (36), the water inlet pipe (1501) The opening of the toilet tank is at the bottom of the toilet tank; one end of the rocking arm (14) is connected to the spring B (16) through the spring seat, which is called the spring end, and the other end is called the control end; the middle part of the rocking arm (14) is connected to the control valve (15) The valve shaft is fixedly connected. When the control end is tilted upwards, it is the water inlet position of the water bag (13). ) drainage position, at this time, the drain pipe (1502) is in communication with the inlet and outlet pipes (1503); the control valve (15) is fixedly installed at the lower part of the casing (9); The pressing point (701) of the limit lever and the pressing point (702) of the control end at the bottom of the part; the pressing point of the limit lever (701) is directly above the limit lever (26), and the pressing point of the control end (702) is on (14) directly above the control end; the button (7) is installed in the button shell (8), and a return spring is housed between the button shell; the button shell (8) is installed on the top of the housing (9); the return lever (17) One end is hinged with the lower valve stem (33) through the G shaft (35), the other end is directly above the spring end of the rocker arm (14), and the middle is supported on the return lever mounting bracket of the bottom plate (24); the limit lever (26) is a square rod, the top limit protrusion (2601); the limit rod (26) is installed in the limit rod guide bracket of the base plate (24), and can slide up and down, the limit rod (26) A return spring is installed below; in the drain valve, the limit protrusion (2601) is directly above the control end of the rocker arm (14); the locking lever (25) is a rod-shaped part, and one end is a locking end (2501) The other end is the counterweight end, and there is a round hole for support in the middle. It is supported on the locking rod mounting bracket of the bottom plate (24) through the supporting round hole in the middle, and the locking end (2501) is obliquely pressed downward against the limit rod On the side of (26), there is a counterweight (2502) on the counterweight end; the release lever (23) is a rod-shaped part, and the left end is hinged with the lower valve stem (33) by the E shaft (29), with a long hole in the middle Supported on the release lever mounting bracket of the bottom plate (24), a swing finger (2301) is hinged at the right end; a return spring is installed between the swing finger (2301) and the release lever (23), and the swing finger (2301 ) is flush with the upper surface of the release lever (23), and the swing finger (2301) can be turned up 90 degrees when subjected to an external force, but cannot be turned down; when the drain valve is closed, the swing finger (2301) is on the lock lever (25) Above the side of the counterweight end; spring B (16) links to each other with the rocking arm (14) by spring seat one end, and one end links to each other with the spring B mounting bracket on the base plate (24).