A flush valve

Abstract

The present invention discloses a flushing valve, comprising a valve body, a valve core and a flushing switch, a water storage cavity is arranged between the top of the valve core and the valve body, the flushing switch comprises a frame, a valve stem and an end cover, the frame is provided with a water inlet and a water outlet, the inner cavity of the frame is divided into a sealing section and an unsealing section, the top of the valve stem is connected with the end cover, the bottom of the valve stem passes through the sealing section and enters the unsealing section, the bottom of the valve stem is sealed with the sealing section, the sealing section is connected with the water outlet, the unsealing section is connected with the water inlet, the water inlet is connected with the water storage cavity through a water inlet pipe, the water outlet is connected with the drain pipe of the valve body through a water outlet pipe, a spring is arranged on the outer sleeve of the valve stem, and the spring is arranged between the end cover and the frame, and there is a pressing gap between the frame and the end cover. The flushing switch and the valve core are arranged separately, and the two are not limited by distance, which is not only convenient for the installation of the valve body, the valve core and the flushing switch, and convenient for users to use, but also safer and more hygienic to use.

Description

Technical Field

[0001] The present invention relates to an improved invention of a flushing valve. Background Art

[0002] See attached Figure 1 The traditional flush valve drives the valve core push rod by pressing the hand lever to open the valve, and the hand lever is reset by the spring. If the elastic force of the spring is too small, the hand lever cannot be reset. Therefore, a large force is required to push the spring and the valve core push rod. Moreover, the hand lever needs to cooperate with the push rod, so the installation position of the valve core and the push switch of the flush valve is limited. The two need to be close to each other for use together, which is not only inconvenient to install, but also inconvenient to use. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a flushing valve that is not only easy to install but also convenient to use.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: the flushing valve comprises a valve body, a valve core and a flushing switch, the valve core is arranged in the valve body, the water outlet end of the valve body is connected to the drain pipe, a water storage cavity is arranged between the top of the valve core and the valve body, the bottom of the valve core cooperates with the water outlet end of the valve body, and the flushing switch comprises a frame, a valve stem and an end cover, the frame is provided with a water inlet and a water outlet, the inner cavity of the frame is divided into a sealing section and an unsealing section, and the unsealing section is smaller than the sealing section. The inner diameter is large, the top end of the valve stem is connected to the end cover, the bottom end of the valve stem passes through the sealing section and enters the unsealing section, the bottom end of the valve stem is sealed with the sealing section, the sealing section of the inner cavity is connected to the water outlet of the frame, the unsealing section of the inner cavity is connected to the water inlet of the frame, the water inlet is connected to the water storage cavity through the water inlet pipe, the water outlet is connected to the drain pipe of the valve body through the water outlet pipe, the valve stem outer sleeve is provided with a spring, and the spring is arranged between the end cover and the frame, and there is a pressing gap between the frame and the end cover.

[0005] The flushing switch is provided with two groups, namely a large water volume switch and a small water volume switch. The pressing gap of the large water volume switch is larger than the pressing gap of the small water volume switch. The water inlet pipe and water outlet pipe are also provided with two groups, namely water inlet pipe one, water outlet pipe one, water inlet pipe two and water outlet pipe two.

[0006] The valve core includes a top seat, a core body, a middle seat and a base. The top seat is provided with a water inlet channel connected to the water inlet end of the valve body. The water inlet channel is unidirectionally connected to the water storage chamber. The top seat is sealed with the inner wall of the valve body, and the middle seat is sealed with the water outlet end of the valve body.

[0007] A time delay seat is arranged on the top seat, a damping hole is opened on the time delay seat, and the damping hole is connected with the water inlet channel and the water storage chamber.

[0008] The damping hole is equipped with a spring needle, and the spring needle is installed on the delay seat.

[0009] The flushing switch of the present invention is separately arranged from the valve core, and the two are not restricted by the distance, which is not only convenient for the installation of the valve body, the valve core and the flushing switch, but also the installation positions of the flushing switch, the valve core and the valve body are not restricted, which is more convenient for users to use. Moreover, the flushing switch is far away from the valve core and the valve body, which can be protected from bacterial infection during flushing, and is safer and more hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of a conventional flush valve.

[0011] Figure 2 It is a schematic diagram of the present invention.

[0012] Figure 3 It is a cross-sectional view of the valve body and valve core of the present invention.

[0013] Figure 4 It is a cross-sectional view of the flush switch of the present invention.

[0014] Figure 5 This is a schematic diagram of the valve core closed state of the present invention.

[0015] Figure 6 This is a schematic diagram of the valve core opening state of the present invention.

[0016] Figure 7 This is a schematic diagram of the present invention installed on a wall. DETAILED DESCRIPTION

[0017] The following describes the relevant details and working principles of the implementation mode and embodiments of the present invention in conjunction with the accompanying drawings. The flushing valve comprises a valve body 3, a valve core and a flushing switch 5. The valve core is arranged in the valve body 3. The water outlet end of the valve body is connected to the drain pipe 4. A water storage chamber 11 is arranged between the top of the valve core and the valve body. The bottom of the valve core cooperates with the water outlet end of the valve body. The flushing switch comprises a frame 16, a valve stem 20 and an end cover 18. The frame 16 is provided with a water inlet 25 and a water outlet 21. The inner cavity of the frame is divided into a sealing section 22 and an unsealing section 23. The unsealing section has a larger inner diameter than the sealing section, and the inner cavity is stepped. The top end of the valve stem 20 is connected to the end cover 18. The bottom end of the valve stem passes through the sealing section 22 and enters the unsealing section 23. The bottom end of the valve stem cooperates with the sealing section in a sealing manner. The outer diameter of the bottom end of the valve stem 20 is larger than the inner diameter of the sealing section 22. The bottom end of the valve stem will not enter the sealing section and seal the sealing section, so that the sealing section is separated from the unsealing section. The sealing section 22 of the inner cavity is connected to the water outlet 21 of the frame. The unsealing section 23 of the inner cavity is connected to the water inlet 25 of the frame, the water inlet 25 is connected to the water storage chamber 11 through the water inlet pipe 6, the water outlet 21 is connected to the drain pipe 4 of the valve body through the outlet pipe 1, the valve stem 20 is provided with a spring 19, and the spring is arranged between the end cover 18 and the frame 16, and there is a pressing gap 17 between the frame and the end cover. When the end cover 18 is pressed, the spring 19 is compressed, and the pressing gap 17 becomes smaller until the end cover 18 is pressed against the frame 16. The frame 16 contacts, at this time, the sealing surface is opened, the bottom end of the valve stem goes deep into the unsealing section 23, the sealing section of the inner cavity is connected with the unsealing section, the water storage cavity 11, the water inlet pipe 6, the inner cavity of the valve body, the water outlet pipe 1 and the drain pipe 4 are connected, the water in the water storage cavity passes through the water inlet pipe, through the inner cavity of the frame, and then through the water outlet pipe, and finally discharged from the drain pipe of the valve body. As the water in the water storage cavity is emptied, the valve core moves along the inner wall of the valve body 3, the water outlet end of the valve body is opened, and the water is discharged from the drain pipe 4, see attached Figure 6 Then, the spring 19 pushes the end cover 18 to reset, that is, the valve stem 20 resets, the water flow is cut off, the outlet pipe 1 stops draining, the water volume in the water storage chamber 11 increases, pushing the valve core to reset, and closing the water outlet end of the valve body, see attached Figure 5 , at this time, the valve is closed. The flush switch of the present invention is connected to the valve body 3 through the water inlet pipe 6 and the water outlet pipe 1. The installation position of the flush switch is no longer restricted, and its installation range can be expanded to a greater extent. The flush switch 5 can be located away from the valve body 3, which is not only convenient for installation, but also prevents bacteria from flying during flushing, so that it can be free from bacterial infection and is safer and more hygienic to use; the present invention only needs to gently press the end cover 18 to overcome the elastic force of the spring 19 to open the sealing surface and discharge the water in the water storage cavity. The end cover is light in weight and the elastic force required for resetting is small, so the force required to press the spring is small, which is more convenient for children and the elderly to use.

[0018] The inner cavity of the valve body 3 can be arranged vertically or horizontally. If the inner cavity of the valve body is arranged vertically, the valve core moves up and down in the valve body. If the inner cavity of the valve body is arranged horizontally, the valve core moves left and right in the valve body. In this embodiment, the valve core is arranged horizontally in the valve body 3. The valve core includes a top seat 8, a core body 13, a middle seat 14 and a base 15. The top seat 8 is provided with a water inlet channel 12 connected to the water inlet end of the valve body. The water inlet channel is unidirectionally connected to the water storage chamber 11, that is, the water in the water inlet channel can enter the water storage chamber, and the water in the water storage chamber cannot enter the water inlet channel. This can be achieved through a damping hole. One end of the damping hole is connected to the water inlet channel, and the other end of the damping hole is connected to the water storage chamber. In this embodiment, a delay seat is provided on the top seat 9. A damping hole is opened on the delay seat. The damping hole is connected to the water inlet channel and the water storage chamber. The water inlet channel is realized through the damping hole. The water in the water storage chamber 11 can enter the water storage chamber, while the water in the water storage chamber cannot enter the water inlet channel; to avoid clogging of the damping hole, the damping hole is equipped with a spring needle 10, and the spring needle is installed on the delay seat 9, the top seat 8 is sealed with the inner wall of the valve body 3, and the middle seat 14 is sealed with the water outlet end of the valve body; when draining water, the valve core moves to the right, and the water in the water storage chamber 11 is discharged until the spring needle contacts the valve body, and the spring needle is pressed and inserted into the damping hole, so that the damping hole is unobstructed and not blocked; when the valve stem 20 of the flushing switch is reset, the water in the water inlet channel 12 enters the water storage chamber 11 through the damping hole, and the water in the water storage chamber pushes the valve core to move to the left and reset, and the valve core closes the water outlet end of the valve body again. If there is no spring needle 10, impurities in the water may block the damping hole, resulting in the inability of the valve core to reset. Therefore, the setting of the spring needle prolongs the service life of the flushing valve.

[0019] The flushing switch is provided with two groups, namely, a large water volume switch 27 and a small water volume switch 26, that is, when a large amount of water is needed for flushing, the large water volume switch is pressed, otherwise, the small water volume switch is pressed; the pressing gap of the large water volume switch is larger than the pressing gap of the small water volume switch, and the water inlet pipe 6 and the water outlet pipe 1 are also provided with two groups, namely, water inlet pipe 1, water outlet pipe 1, water inlet pipe 2 and water outlet pipe 2, the water inlet pipe 1 and the water inlet pipe 2 are both connected to the water storage chamber, and the water outlet pipe 1 and the water outlet pipe 2 are connected to the drainage pipe. The larger the moving stroke of the valve stem 20 and the end cover 18, the more water is discharged. This is because the valve stem 20 goes deep into the unsealing section 23, the larger the gap opened by the sealing surface, the larger the water discharge, the more water in the water storage chamber 11 is discharged, the longer the valve core moves, and the longer the time required for resetting, so the drainage is large, otherwise it is small, so the drainage is selected according to the demand, which is more energy-saving.

Claims

1. A flushing valve, comprising a valve body, a valve core and a flushing switch, wherein the valve core is arranged in the valve body, the water outlet end of the valve body is connected to a drain pipe, a water storage cavity is arranged between the top of the valve core and the valve body, and the bottom of the valve core cooperates with the water outlet end of the valve body, characterized in that The flushing switch includes a frame, a valve stem and an end cover. The frame is provided with a water inlet and a water outlet. The inner cavity of the frame is divided into a sealing section and an unsealing section. The unsealing section has a larger inner diameter than the sealing section. The top end of the valve stem is connected to the end cover, the bottom end of the valve stem passes through the sealing section and enters the unsealing section, the bottom end of the valve stem is sealed with the sealing section, the sealing section of the inner cavity is connected to the water outlet of the frame, the unsealing section of the inner cavity is connected to the water inlet of the frame, the water inlet is connected to the water storage cavity through a water inlet pipe, and the water outlet is connected to the drain pipe of the valve body through a water outlet pipe. A spring is provided on the outer sleeve of the valve stem, and the spring is arranged between the end cover and the frame. There is a pressing gap between the frame and the end cover.

2. The flush valve according to claim 1, characterized in that The flushing switch is provided with two groups, namely a large water volume switch and a small water volume switch. The pressing gap of the large water volume switch is larger than the pressing gap of the small water volume switch. The water inlet pipe and water outlet pipe are also provided with two groups, namely water inlet pipe one, water outlet pipe one, water inlet pipe two and water outlet pipe two.

3. A flush valve according to claim 1 or 2, characterized in that The valve core includes a top seat, a core body, a middle seat and a base. The top seat is provided with a water inlet channel connected to the water inlet end of the valve body. The water inlet channel is unidirectionally connected to the water storage chamber. The top seat is sealed with the inner wall of the valve body, and the middle seat is sealed with the water outlet end of the valve body.

4. A flush valve according to claim 3, characterized in that A time delay seat is arranged on the top seat, a damping hole is opened on the time delay seat, and the damping hole is connected with the water inlet channel and the water storage chamber.

5. A flush valve according to claim 4, characterized in that The damping hole is equipped with a spring needle, and the spring needle is installed on the delay seat.

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