CN216379803U - Water bladder drive water tank drain valve - Google Patents

Abstract

A water bag driven water tank drainage valve is mainly used for controlling the drainage process of a toilet water tank, the drainage valve only has one button, the drainage quantity of the water tank can be controlled according to the depth of the button, and the button is particularly light and can be pressed only by 0.1 Newton. The water discharge valve is provided with a water bag which is connected with a valve core through a rope lever, and the water bag is flattened by using the pressure of water in the toilet water tank, so that the valve core of the water discharge valve is driven to be opened. The control valve is connected with the water bag to control the water in the water bag to flow in and out. The button controls the action of the control valve, and the depth of the button controls the opening of the control valve when water enters the water bag, so that the water discharge of the water tank is controlled.

Description

Water bladder drive water tank drain valve

technical field

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

Background technique

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

Utility model content

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

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 bladder, which is connected to the valve core through a rope and a lever, and the water bladder is pressed by the pressure of the water in the toilet tank. flat, thereby driving the valve core of the drain valve to open. The control valve is connected with the water bag, and controls the water in and out of the water bag. The button controls the action of the control valve, and the depth of the button press controls the opening of the control valve when water enters the water bladder, thereby controlling the drainage volume of the water tank.

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 by:

The valve seat 2 is the installation base of the drain valve, and there is 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 valve core in the middle, and a return lever 17, a release lever 23, a locking lever 25, a mounting bracket for the spring B16 and a guide bracket for the limit lever 26 on the top;

The valve core 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 C30, and a drain valve sealing ring 27; the valve plate 36 is a disc-shaped part, and a drain valve is installed below. The sealing ring 27 is connected with the lower valve stem 33 through the square pin 28 on the top; the lower valve stem 33 is connected with the valve plate 36 at the bottom, and the top is slidingly matched with the upper valve stem 32. A long hole is connected with the upper valve rod 32; the sliding valve rod 31 is inserted into the upper valve rod 32, and a sliding fit is adopted between the two, and the spring C30 is used to tighten it;

The valve core driving mechanism is composed of a water bladder 13, a pulling wire 12, a driving lever 11, a spring A6, a pulling rope 22, a D axis 10, and a B axis 4; The seat 201 is sealed and connected, and an ear on the upper surface is connected with the pull wire 12; one end of the driving lever 11 is connected with the pull wire 12, and the other end is connected with the spring A6 and the pull wire 22, and there is a hanging arm on the other end, and the lower end of the hanging arm has a closing valve Protrusion 1101; the valve closing protrusion 1101 is directly below the valve closing arm 20 when the drain valve is closed, and the valve closing protrusion 1101 is directly above the valve closing arm 20 when the drain valve is opened; there is an opening hole in the middle of the driving lever 11 It cooperates with the D-axis 10 to form the fulcrum of the lever; the lower end of the pulling rope 22 is connected to the sliding valve rod 31; one end of the spring A6 is connected to the driving lever 11 and the other end is connected to the B-axis 4;

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

The control mechanism is composed of a control valve 15, a rocker arm 14, a button 7, a button shell 8, a return lever 17, a limit lever 26, a locking lever 25, a release lever 23, and a spring B16; the control valve 15 is a two-position three-way The internal structure of the valve is the same as the one on the market. It has three nozzles connected to the water inlet pipe 1501, the drain pipe 1502 and the water inlet and outlet pipes 1503 respectively. Leading to the bottom of the valve plate 36, the opening of the water inlet pipe 1501 is at the bottom of the toilet tank; one end of the rocker arm 14 is connected to the spring B16 through the spring seat, which is called the spring end, and the other end is called the control end; the middle part of the rocker arm 14 is connected to the control end. The valve shaft of the valve 15 is fixedly connected. When the control end is tilted upward, it is the water inlet position of the water bladder 13. At this time, the water inlet pipe 1501 is communicated with the inlet and outlet pipes 1503. When the control end is tilted downward, it is the water bladder 13 drainage position. At this time The drain pipe 1502 communicates with the inlet and drain pipes 1503; the control valve 15 is fixedly installed at the lower part of the housing 9; the button 7 extends downward with a rod, and the bottom end of the rod has a limit rod pressing point 701 and a control end pressing point 702 The limit rod pressing point 701 is directly above the limit rod 26, and the control end pressing point 702 is directly above the control end of the rocker arm 14; The button shell 8 is installed on the upper part of the housing 9; one end of the return lever 17 is hinged with the lower valve stem 33 through the G axis 35, the other end is just 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 rod 26 is a square rod, the upper part has a limit protrusion 2601; the limit rod 26 is installed in the limit rod guide bracket of the bottom plate 24, and can slide up and down, and a return spring is installed below the limit rod 26 In this drain valve, the limiting protrusion 2601 is directly above the control end of the rocker arm 14; the locking rod 25 is a rod-shaped part, one end is the locking end 2501 and the other end is the counterweight end, and there is a round hole in the middle for supporting , is supported on the locking rod mounting bracket of the bottom plate 24 through the middle supporting circular hole, the locking end 2501 is inclined downward and pressed against the side of the limit rod 26, and there is a counterweight 2502 on the counterweight end; the release lever 23 It is a rod-shaped part, the left end is hinged with the lower valve rod 33 through the E-axis 29, the middle is supported on the release lever mounting bracket of the bottom plate 24 with a long hole, and the right end is hinged with a swing finger 2301; the swing finger 2301 is installed between the release lever 23 There is a return spring, the swing finger 2301 is flush with the upper surface of the release lever 23 when no external force is applied, and the swing finger 2301 can be turned up 90 degrees when subjected to external force, but cannot be turned downward; when the drain valve is closed, the swing finger 2301 is in the Above the side of the counterweight end of the locking rod 25; the spring B16 is connected to the rocker arm 14 through one end of the spring seat, and one end is connected to the spring B mounting bracket on the bottom plate 24.

The beneficial effects of the invention are that the drainage valve has only one button, the drainage volume of the water tank can be controlled according to the depth of pressing the button, and the button is particularly light.

Description of drawings

Figure 1 is a schematic diagram of the structure of the invented drain valve when it is in a closed state

Figure 2 is an axonometric view of the invented drain valve after removing parts such as shell buttons

Figure 3 is the valve core assembly

Figure 4 is the valve seat

Figure 5 is the bottom plate

Figure 6 is the housing control valve and other parts

Figure 7 is the upper stem

Figure 8 is the sliding valve stem

Figure 9 is the drive lever

Figure 10 is the valve core locking mechanism

Figure 11 is the button

Figure 12 is the limit rod

Figure 13 is the lock lever

Figure 14 is the release lever

Markings in the picture: 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 axis, 11. Driving lever, 1101. Valve closing protrusion, 12. Pull wire , 13. Water bladder, 14. Rocker arm, 15. Control valve, 1501. Inlet pipe, 1502. Drain pipe, 1503. Inlet and drain pipe, 16. Spring B, 17. Return lever, 18. Lower claw, 19 .Rod, 20. Close arm, 21. Upper jaw, 22. Pull rope, 23. Release lever, 2301. Swing finger, 24. Bottom plate, 25. Lock lever, 2501. Lock end, 2502. Fitting Heavy, 26. Limit Lever, 2601. Limit Protrusion, 27. Drain Valve Seal, 28. Square Pin, 29. E Shaft, 30. Spring C, 31. Sliding Stem, 32. Upper Stem, 33 .Lower stem, 34.F shaft, 35.G shaft, 36. Valve plate.

Detailed ways

As shown in Figures 1, 2 and 3, the invention is mainly 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.

As shown in Fig. 4, the valve seat 2 is the installation base of the drain valve, which is fixed on the drain port of the toilet tank, the water tank sealing ring 1 realizes the sealing with the toilet tank, and there is a vertical circular drain hole 203 in the middle. , there are four square water inlet holes 202 in the circumferential direction, and a circular water bag seat 201 on the side. The bottom plate 24 , the housing 9 and the water bladder 13 are all mounted on the valve seat 2 .

As shown in FIG. 5 , the bottom plate 24 is a disc-shaped part with a guide square hole for the valve core in the middle, on which there are the return lever 17 , the release lever 23 , the locking lever 25 , the mounting bracket of the spring B16 and the limit lever 26 Guide bracket.

As shown in FIG. 6 , the casing 9 is a cylindrical part, and is mounted on the valve seat 2 together with the bottom plate 24 above the bottom plate 24 .

As shown in FIG. 3 , the valve core is composed of sliding valve stem 31 , upper valve stem 32 , lower valve stem 33 , valve plate 36 , square pin 28 , spring C30 , and drain valve sealing ring 27 . The valve plate 36 is a disc-shaped part, a drain valve sealing ring 27 is installed on the bottom, and the top is connected with the lower valve stem 33 through a square pin 28 . The bottom of the lower valve rod 33 is connected with the valve plate 36 , and the upper side is slidingly matched with the upper valve rod 32 . As shown in Fig. 7 and Fig. 8, the sliding valve rod 31 is inserted into the upper valve rod 32, and the two are slidingly fitted and tensioned by a spring C30.

The valve core driving mechanism is composed of a water bladder 13, a pulling wire 12, a driving lever 11, a spring A6, a pulling rope 22, a D axis 10, and a B axis 4. The water bag 13 is a rubber bellows, the upper end is closed, the lower end is open, the lower end is sealedly connected with the water bag seat 201 , and an ear on the upper surface is connected with the pull wire 12 . One end of the driving lever 11 is connected to the pull wire 12, the other end is connected to the spring A6 and the pull rope 22, and the other end has a drooping arm, and the lower end of the drooping arm has a valve closing protrusion 1101. When the drain valve is closed, the valve closing protrusion 1101 is closed. Right below the valve arm 20, the valve closing protrusion 1101 is directly above the valve closing arm 20 when the drain valve is opened. There is an opening hole in the middle of the driving lever 11 to cooperate with the D-axis 10 to form a fulcrum of the lever. The lower end of the pulling rope 22 is connected to the sliding valve rod 31 . One end of the spring A6 is connected to the driving 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 valve core locking mechanism is a 4-bar mechanism, which consists of a lower jaw 18, a connecting rod 19, an upper jaw 21, a valve closing arm 20, an A axis 3, and a C axis 5. The lower jaw 18 has a C-shaped mounting hole, a triangular jaw below the hole, a rocker on the side of the hole, and the C-shaped mounting hole is matched with the A-axis 3. The upper claw 21 has a C-shaped mounting hole, a hook-shaped claw below the hole, a rocker 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. The C-shaped hole cooperates with the C-shaped mounting hole of the upper machine claw 21 and is installed on the C-axis 5. The valve closing arm 20 can be relative to the upper machine claw 21 in the position shown in Figure 10. Swing up 90°. The upper jaw 21 and the rocker of the lower jaw 18 are connected by a connecting rod 19 . Both the A axis 3 and the C axis 5 are fixed on the housing 9 .

The control mechanism is composed of a control valve 15, a rocker arm 14, a button 7, a button shell 8, a return lever 17, a limit lever 26, a locking lever 25, a release lever 23, and a spring B16. The control valve 15 is a two-position three-way valve, and its internal structure is the same as the one on the market. It has three nozzles which are respectively connected to the water inlet pipe 1501, the drain pipe 1502 and the water inlet and outlet pipes 1503, and the water inlet and outlet pipes 1503 are communicated with the water bladder seat 201. , the drain pipe 1502 is connected with the valve seat 2 and leads to the bottom of the valve plate 36, and the opening of the water inlet pipe 1501 is at the bottom of the toilet tank. One end of the rocker arm 14 is connected with the spring B16 through the spring seat, which is called the spring end, and the other end is called the control end. The middle of the rocker arm 14 is fixedly connected with the valve shaft of the control valve 15. When the control end is tilted upward, the position as shown in Figure 2 is the water inlet position of the water bladder 13. At this time, the water inlet pipe 1501 is communicated with the inlet and drain pipes 1503. When it is tilted downward, it is the drainage position of the water bladder 13, and the drainage pipe 1502 is communicated with the inlet and drainage pipes 1503 at this time. The control valve 15 is fixedly mounted on the lower part of the housing 9 . As shown in FIG. 11 , the button 7 protrudes downward with a rod, and a rod pressing point 701 and a control end pressing point 702 are limited at the bottom end of the rod. In the drain valve, the limit rod pressing point 701 is directly above the limit rod 26 , and the control end pressing point 702 is just above the control end of the rocker arm 14 . The button 7 is installed in the button shell 8, and a return spring is installed between the button shell and the button shell. The key cover 8 is mounted on the upper part of the casing 9 . One end of the return lever 17 is hinged with the lower valve rod 33 through the G axis 35 , the other end is just 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 . As shown in FIG. 12 , the limiting rod 26 is a square rod with a limiting protrusion 2601 on the upper part. The limit rod 26 is installed in the limit rod guide bracket of the bottom plate 24 and can slide up and down, and a return spring is installed below the limit rod 26 . In the drain valve, the limiting protrusion 2601 is just above the control end of the rocker arm 14 . As shown in FIG. 13 , the locking rod 25 is a rod-shaped part, one end is the locking end 2501 and the other end is the counterweight end, and there is a round hole in the middle for supporting. It is supported on the locking rod mounting bracket of the bottom plate 24 through the supporting circular hole in the middle. As shown in Figure 14, the release lever 23 is a rod-shaped part, the left end is hinged with the lower valve rod 33 through the E-axis 29, the middle is supported on the release lever mounting bracket of the bottom plate 24 with a long hole, and the right end is hinged with a swing finger 2301. 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. When an external force is applied, the swing finger 2301 can be turned upward by 90 degrees at the position shown in Figure 14. , but not flip down. The swing finger 2301 is positioned above the side of the counterweight end of the locking lever 25 when the drain valve of the present invention is closed. One end of the spring B16 is connected to the rocker arm 14 through the spring seat, and one end is connected to the spring B mounting bracket on the bottom 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 rod pressing point 701 pushes the limit rod 26 to slide down . When the control end of the rocker arm 14 swings past the horizontal position, it continues to swing downward to the lowest point under the action of the spring B16, and is at the drain position of the water bladder 13 . When the button 7 reaches a certain depth, release the button 7, and the button 7 will return to the original position under the action of the return spring. The limit lever 26 is locked by the lock lever 25 .

At this time, the control valve 15 makes the drain pipe 1502 communicate with the inlet and drain pipes 1503. 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 crushed. The water bladder 13 pulls the sliding valve rod 31 through the pulling wire 12, the driving lever 11, and the pulling rope 22. At this time, the upper valve rod 32 is caught by the lower claw 18 and cannot move upward. The sliding valve rod 31 overcomes the pulling force of the spring C30 and continues to slide upward and contacts the inclined surface of the upper jaw 21, pushing the upper jaw 21 to swing outward, and the upper jaw 21 drives the lower jaw 18 to swing outward through the connecting rod 19, releasing the upper valve Rod 32. The upper valve rod 32 drives the lower valve rod 33 and the valve plate 36 to move upward rapidly under the action of the spring C30, the drain valve is opened, and the water in the toilet tank enters the toilet through the water inlet hole 202 and the drain hole 203 on the valve seat 2. The sliding valve rod 31 continues to move to the top of the upper jaw 21 and is caught by the upper jaw 21 .

During the process of squashing the water bladder 13 , the valve closing protrusion 1101 of the driving lever 11 moves upward to contact the valve closing arm 20 . The valve closing arm 20 swings upward, the valve closing protrusion 1101 reaches the upper part of the valve closing arm 20, and then the valve closing arm 20 returns to its position 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 swinging of the release lever 23 causes the swinging finger 2301 to touch the locking lever 25 and swing upward, thereby sliding down under the locking lever 25 and then straightening. The return lever 17 swings and presses the spring end of the rocker arm 14, and jumps to the water inlet position of the water bladder 13 under the action of the spring B16. At this time, the control end of the rocker arm 14 is in contact with the limit protrusion 2601 of the limit rod 26. Therefore, the position of the limit rod 26 determines the opening degree of the control valve 15 when the water bladder 13 is filled with water, and the higher the position, the greater the opening degree. At this time, the pressure inside and outside the water bag 13 is equal. Under the action of the elastic force of the water bag and the pulling force of the spring A6, the water in the toilet tank enters the water bag 13 through the water inlet pipe 1501, the control valve 15, and the water inlet and outlet pipes 1503, and the water bag 13 gradually enters the water bag 13. Returning, the valve closing protrusion 1101 of the driving lever 11 moves downward to contact the valve closing arm 20 . The valve closing arm 20 swings downward under the push of the valve closing protrusion 1101 , thereby driving the upper jaw 21 to swing. The upper jaw 21 releases the sliding valve stem 31, and the valve core falls under the action of gravity and water pressure to close the drain valve.

The downward movement of the valve core drives the return lever 17 and the release lever 23 to swing, 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 limit lever 26, and the limit The rod 26 is returned under the action of a 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 lever 26, thereby controlling the opening of the control valve 15, thereby controlling the rebound speed of the water bladder 13, thereby determining the downward direction of the valve closing protrusion 1101. The time when the movement is in contact with the valve closing arm 20 to release the valve core is the time of the drainage process, thereby controlling the drainage volume.

Claims (1)

1. A water bladder-driven water tank drain valve, consisting of a valve seat (2), a bottom plate (24), a casing (9), a valve core, a valve core drive mechanism, a valve core locking mechanism and a control mechanism, and is characterized by: : The valve seat (2) is the installation base of the drain valve, and there is a circular water bladder seat (201) on the side; The bottom plate (24) is a disc-shaped part, with a guide square hole for the valve core in the middle, on which there are the return lever (17), the release lever (23), the locking lever (25), the mounting bracket for the spring B (16) and the the guide bracket of the limit rod (26); The valve core 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), 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 on the bottom, and the top is connected with the lower valve stem (33) through the square pin (28); the lower valve stem (33) is connected with the valve plate (27). 36) connected with the upper valve stem (32) in sliding fit, the lower valve stem (33) has a long hole on the top, 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), use a sliding fit between the two, and tighten it with a spring C (30); The valve core driving mechanism is composed of a water bladder (13), a pull wire (12), a driving lever (11), a spring A (6), a pull rope (22), a D axis (10), and a B axis (4); the water bladder ( 13) is a rubber bellows, the upper end is closed, the lower end is open, the lower end is sealed with the water bladder seat (201), and the upper surface has an ear connected with the pull wire (12); one end of the driving lever (11) is connected with the pull wire (12), and the other end is connected with the pull wire (12). One end is connected with the spring A (6) and the pulling rope (22), and the other end has a drooping arm, and the lower end of the drooping arm has a valve closing protrusion (1101); when the drain valve is closed, the valve closing protrusion (1101) closes 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 opening hole in the middle of the driving lever (11) to cooperate with the D shaft (10) to form The fulcrum of the lever; the lower end of the pull rope (22) is connected to the sliding valve rod (31); one end of the spring A (6) is connected to the driving lever (11) and the other end is connected to the B axis (4); the D axis (10) and the B axis (4) ) are fixed on the shell (9); The valve core locking mechanism is a 4-bar mechanism, which consists of the lower jaw (18), the connecting rod (19), the upper jaw (21), the valve closing arm (20), the A axis (3), and the C axis (5). It consists of: the lower jaw (18) has a C-shaped mounting hole, a triangular jaw below the hole, a rocker on the side of the hole, and the C-shaped mounting hole is matched with the A-axis (3); the upper jaw (21) There is a C-shaped mounting hole, a hook-shaped claw below the hole, a rocker lever on the side of the hole, 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), The C-shaped hole cooperates with the C-shaped mounting hole of the upper machine claw (21) and is installed on the C-axis (5). 21) and the rocker of the lower jaw (18) are connected by a connecting rod (19); the A axis (3) and the C axis (5) are both fixed on the casing (9); The control mechanism consists of a control valve (15), a rocker arm (14), a button (7), a button shell (8), a return lever (17), a limit lever (26), a locking lever (25), a release lever ( 23), spring B (16); the control valve (15) is a two-position three-way valve, its internal structure is the same as the one on the market, it has three nozzles to connect 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 bladder seat (201), the drainage pipes (1502) are connected with the valve seat (2) and lead to the bottom of the valve plate (36), and the water inlet pipes (1501) The opening is at the bottom of the toilet tank; one end of the rocker arm (14) is connected to the spring B (16) through the spring seat, called the spring end, and the other end is called the control end; the middle of the rocker arm (14) is connected to the control valve (15) The valve shaft is fixedly connected, when the control end is tilted upward, it is the water intake position of the water bladder (13). At this time, the water inlet pipe (1501) is connected with the intake and drain pipe (1503), and when the control end is tilted downward, it is the water bladder (13). ) drainage position, at this time, the drain pipe (1502) communicates with the inlet and drain pipes (1503); the control valve (15) is fixedly installed at the lower part of the casing (9); The bottom end of the component has a limit rod pressing point (701) and a control end pressing point (702); the limit rod pressing point (701) is just above the limit rod (26), and the control end pressing point (702) is on the rocker arm (14) Right above the control end; the button (7) is installed in the button shell (8), and a return spring is installed between the button shell (8); the button shell (8) is installed on the upper part of the shell (9); the return lever (17) One end is hinged with the lower valve stem (33) through the G axis (35), the other end is just 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 with a limit protrusion (2601) on the upper part; the limit rod (26) is installed in the limit rod guide bracket of the bottom 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 rod (25) is a rod-shaped part, and one end is the locking end (2501) The other end is the counterweight end, and there is a round hole in the middle for support. It is supported on the locking rod mounting bracket of the bottom plate (24) through the middle supporting round hole, and the locking end (2501) is inclined downward and pressed 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, the left end is hinged with the lower valve stem (33) through the E-axis (29), and a long hole is used 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 not subject to external force. ) 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 external force, but cannot be turned down; When the water valve is closed, the swing finger (2301) is above the side of the counterweight end of the locking lever (25); the spring B (16) is connected to the rocker arm (14) through one end of the spring seat, and one end is installed with the spring B on the bottom plate (24). Brackets are attached.

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