Water tank flush valve driving device and closestool
The water tank flush valve drive device, which drives the piston assembly through water pressure, solves the problems of wear and high power consumption of the electronic control accessories of traditional mechanical toilets in an environment without sockets, and realizes energy-saving and long-life automatic control of the water tank valve body.
Patent Information
- Application Number
- CN202422881459.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When traditional mechanical toilets are equipped with electronic control accessories in a bathroom environment without sockets, there are problems such as motor wear, limited power of energy storage components, and frequent replacement, resulting in a short service life and high power consumption.
A water tank flush valve drive device is used, which uses water pressure to drive the piston assembly, and the water tank valve body is automatically opened and closed through the drive rod, avoiding hard contact wear of components and requiring no power supply during the reset process.
It extends the service life, reduces power consumption, improves ease of use and reliability, and reduces the frequency of energy storage component replacement.
Smart Images
Figure CN223386739U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric control equipment, in particular to a water tank flush valve driving device and a toilet. Background Art
[0002] Most households use traditional mechanical toilets, which do not require electricity. Bathrooms usually do not have sockets connected to the mains electricity near the toilets. If users need to replace their toilets with smart ones, they also need to rearrange the wires in the bathroom. This is why smart toilets cannot be used in old-style decoration environments.
[0003] Some manufacturers are considering adding electronic control components to traditional toilets to achieve basic functions such as automatic flushing, which can also provide convenience for users. Existing electronic control components usually include a sensing module, a control module, and a drive module. The sensing module is installed on the toilet to sense whether someone is using the toilet. If so, it generates a feedback electrical signal. The drive module includes a motor, a gear, and a rack push rod. The gear and rack push rod mesh with each other. The control module controls the operation of the motor based on the feedback electrical signal. The rotation of the motor drives the gear to rotate. When the gear rotates, it pushes the rack push rod forward. The drive module is installed on the water tank. Pushing the push rod forward can apply force to the flush button of the water tank, thereby simulating a human hand pressing to achieve flushing. After the flush is completed, the control module needs to control the motor to reverse, so that the rack push rod moves backward, the flush button resets, and the toilet stops flushing.
[0004] The above process requires electricity. For bathroom environments without sockets, only energy storage devices can be installed on the toilet to power the motor. However, the above structure has many problems. The coordination of the gear and the rack push rod has a service life, and the reciprocating movement of the gear and the rack push rod causes tooth wear. In addition, when flushing, the motor needs to rotate forward to drive the rack push rod forward, and the electrical energy is completely converted into mechanical energy to apply force to the flush button. After the flush is completed, the motor needs to rotate in the opposite direction to drive the rack push rod backward. The energy storage device needs to power the motor in both processes, and the electrical energy stored in the energy storage device is limited. Users will definitely dislike the frequent replacement of energy storage devices. How to reduce the power consumption of electrical components is another major problem. Utility Model Content
[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a water tank flush valve drive device and a toilet, which are energy-saving and power-saving, have a long service life, and are convenient and reliable to use.
[0006] According to the first embodiment of the present invention, the water tank flush valve drive device includes: a shell having an inner cavity, the shell being provided with a water inlet, a water drain and a drive port connected to the inner cavity, the cross-sectional area of the water drain being smaller than the cross-sectional area of the water inlet; a piston assembly being provided in the shell and capable of moving in the inner cavity, the piston assembly being provided with a drive rod, the drive rod being passed through the drive port; a reset member being provided in the shell, the reset member being used to drive the piston assembly to reset; an electrically controlled valve body The input end of the electrically controlled valve body is used to be connected to a water supply source, and the output end of the electrically controlled valve body is communicated with the water inlet. The electrically controlled valve body can be conducted so that water flows into the inner cavity from the water inlet; wherein, when water flows into the inner cavity from the water inlet, the water flow can drive the piston assembly to move toward the driving port so that the driving rod is pushed out from the driving port; when the electrically controlled valve body is closed, the reset member can drive the piston assembly to move away from the driving port so that the driving rod is retracted from the driving port into the inner cavity, and the water flows out from the drain port.
[0007] The water tank flush valve driving device according to the embodiment of the utility model has at least the following beneficial effects:
[0008] When the water tank valve body needs to be driven to conduct, the electric control valve body is energized to conduct the electric control valve body, and the water source provides water to flow into the inner cavity from the water inlet. Since the cross-sectional area of the drain port is smaller than that of the water inlet, the water flow will exert pressure on the piston assembly when entering the inner cavity, causing the piston assembly to move toward the driving port so that the driving rod is pushed out from the driving port. The driving rod acts on the driven part that drives the water tank valve body to conduct, and the water tank valve body is conducted to realize the flushing function. When the flushing is completed, there is no need to energize the electric control valve body again. The electric control valve When the valve body is closed and no water flows into the water inlet, the reset part will drive the piston assembly to reset, and the water in the inner cavity will be discharged from the drain port, and the piston assembly moves away from the driving port so that the driving rod is retracted from the driving port into the inner cavity. The driven part of the water tank valve body is not pressurized by the driving rod, and the water tank valve body is closed accordingly, stopping the flushing function. This design has no hard contact and wear between components, and has a long service life. It uses the pressure provided by the water flow to drive the driving rod, and no power is required during the reset process, which is energy-saving and labor-saving, and is convenient and reliable to use.
[0009] According to some embodiments of the present invention, the inner cavity is long and strip-shaped, the drive port is located at the head end of the inner cavity, the water inlet and the drain port are located at the tail end of the inner cavity, and the piston assembly is located between the head end and the tail end of the inner cavity.
[0010] According to some embodiments of the present invention, the piston assembly includes a piston seat and a sealing ring, the drive rod is arranged on the piston seat, and the sealing ring is sleeved on the piston seat so that the sealing ring is pressed against the outer circumferential wall of the piston seat and the inner circumferential wall of the inner cavity respectively.
[0011] According to some embodiments of the present invention, a pressure assembly is provided on the piston seat, and the pressure assembly includes a plurality of pressure blocks arranged along the circumference of the piston seat, and a deformation gap is provided between two adjacent pressure blocks. The sealing ring is sleeved on the pressure assembly so that each pressure block abuts against the inner circumference of the sealing ring.
[0012] According to some embodiments of the present invention, the reset member includes an elastic member, and the elastic member can press against the piston assembly and the inner peripheral wall of the inner cavity respectively to drive the piston assembly to reset.
[0013] According to some embodiments of the present invention, the shell includes a base and a top cover, the base has a mounting port, the mounting port allows the piston assembly to pass through, the top cover is arranged on the mounting port and the top cover and the base are detachably connected to enclose the inner cavity, the drive port is arranged on the top cover, and the water inlet and the drain port are arranged on the base.
[0014] According to the toilet of the second embodiment of the present utility model, it includes a water tank and a water tank flush valve driving device disclosed in any of the above embodiments, the water tank is provided with a water tank valve body connected to the water storage chamber of the water tank and a driving assembly, the driving assembly is connected to the water tank valve body, the shell is installed on the water tank, the driving rod is pushed out from the driving port so as to act on the driven part of the driving assembly, and the driven part of the driving assembly is subjected to force so as to make the water tank valve body conductive.
[0015] The toilet according to the embodiment of the utility model has at least the following beneficial effects:
[0016] The utility model toilet applies the water tank flushing valve driving device disclosed in any of the above embodiments to automatically drive the water tank valve body to conduct, which saves energy and electricity, has a long service life, and is convenient and reliable to use.
[0017] According to some embodiments of the present invention, the drain port is arranged corresponding to the water storage cavity so that water flowing out of the drain port can enter the water storage cavity.
[0018] According to some embodiments of the present invention, the toilet also includes a sensing module and a control module. The sensing module is used to sense to form a feedback signal, and the feedback signal is used to indicate that someone is using the toilet. The control module is respectively connected to the sensing module and the electric control valve body to control the conduction of the electric control valve body according to the feedback signal.
[0019] According to some embodiments of the present invention, the toilet further comprises an energy storage component detachably arranged on the toilet, and the energy storage component is used to supply power to the electric control valve body.
[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0022] Figure 1 This is a three-dimensional schematic diagram of one embodiment of the water tank flush valve driving device of the present invention;
[0023] Figure 2 This is an exploded view of one embodiment of the water tank flush valve driving device of the present invention;
[0024] Figure 3 This is a schematic diagram of the internal structure of one embodiment of the water tank flush valve driving device of the present invention, with the driving rod in the ejected state;
[0025] Figure 4 This is a schematic diagram of the internal structure of one embodiment of the water tank flush valve driving device of the present invention, in which the driving rod is in a retracted state;
[0026] Figure 5 This is an exploded view of a piston assembly of one embodiment of the water tank flush valve drive device of the present invention;
[0027] Figure 6 This is a principle structural block diagram of one embodiment of the toilet of the present utility model.
[0028] Reference numerals:
[0029] Shell 100; base 110; top cover 120; inner cavity 130; water inlet 140; drain port 150; drive port 160; piston assembly 200; piston seat 210; pressing block 211; deformation gap 212; sealing ring 220; drive rod 230; reset member 300; electric control valve body 400; sensing module 500; control module 600; energy storage member 700. DETAILED DESCRIPTION
[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside", are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0032] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.
[0033] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0034] like Figures 1 to 6As shown, the water tank flush valve driving device according to the first embodiment of the present utility model includes a housing 100, a piston assembly 200, a reset member 300 and an electric control valve body 400, the housing 100 has an inner cavity 130, and the housing 100 is provided with a water inlet 140, a drain port 150 and a drive port 160 connected to the inner cavity 130, the cross-sectional area of the drain port 150 is smaller than the cross-sectional area of the water inlet 140, the piston assembly 200 is arranged in the housing 100 and the piston assembly 200 can move in the inner cavity 130, the piston assembly 200 is provided with a drive rod 230, the drive rod 230 is passed through the drive port 160, the reset member 300 is arranged in the housing 100, and the reset member 300 is used to In order to drive the piston assembly 200 to reset, the input end of the electric control valve body 400 is used to connect to the water supply source, and the output end of the electric control valve body 400 is connected to the water inlet 140. The electric control valve body 400 can be conducted so that water flows from the water inlet 140 into the inner cavity 130. When water flows from the water inlet 140 into the inner cavity 130, the water flow can drive the piston assembly 200 to move toward the drive port 160 so that the drive rod 230 is pushed out from the drive port 160. When the electric control valve body 400 is closed, the reset member 300 can drive the piston assembly 200 to move away from the drive port 160 so that the drive rod 230 is retracted from the drive port 160 into the inner cavity 130, and the water flows out from the drain port 150.
[0035] The shell 100 may be provided with threaded holes, clips, clamps and other mounting structures for installation on the base shell of the applied equipment. For example, when used to drive the water tank valve body, the shell 100 may be installed on the outer surface of the water tank or inside the water tank.
[0036] The electrically controlled valve body 400 can be selected from a conventional solenoid valve. When the solenoid valve receives an electric drive signal, the solenoid valve is energized and turned on, and is turned off when the power is lost. The input end of the solenoid valve is connected to a water supply source. When the solenoid valve is turned on, the water supply source provides water pressure to drive water to flow from the water inlet 140 into the inner cavity 130.
[0037] The cross-sectional area of the drain port 150 is much smaller than the cross-sectional area of the water inlet 140 , so that when water flows into the inner cavity 130 , it can drive the piston assembly 200 to move. Specifically, there can be multiple drain ports 150 , but the sum of the cross-sectional areas of the multiple drain ports 150 is also much smaller than the cross-sectional area of the water inlet 140 .
[0038] The utility model relates to a water tank flushing valve driving device. When it is necessary to drive the water tank valve body to conduct, the electric control valve body 400 is energized to make the electric control valve body 400 conduct, and the water supply source provides water to flow from the water inlet 140 into the inner cavity 130. Since the cross-sectional area of the drain port 150 is smaller than the cross-sectional area of the water inlet 140, the water will exert pressure on the piston assembly 200 when entering the inner cavity 130, causing the piston assembly 200 to move toward the driving port 160 so that the driving rod 230 is pushed out from the driving port 160. The driving rod 230 acts on the driven part that drives the water tank valve body to conduct, and the water tank valve body is conducted to realize the flushing function. When the flushing is completed, there is no need to energize the electric control valve body 400. The electric control valve body 400 is turned on. The control valve body 400 is closed, no water flows into from the water inlet 140, the reset member 300 drives the piston assembly 200 to reset, the water in the inner cavity 130 will be discharged from the drain port 150, and the piston assembly 200 moves away from the drive port 160 so that the drive rod 230 retracts from the drive port 160 into the inner cavity 130. The driven part of the water tank valve body is not pressurized by the drive rod 230, and the water tank valve body is closed, stopping the flushing function. This design has no hard contact wear between components and has a long service life. It uses the pressure provided by the water flow to drive the drive rod 230, and no power is required during the reset process, which is energy-saving and labor-saving, and is convenient and reliable to use.
[0039] In some embodiments of the present invention, Figure 3 、 4 As shown, the inner cavity 130 is in the shape of an elongated strip, the driving port 160 is located at the head end of the inner cavity 130, the water inlet 140 and the drain port 150 are located at the tail end of the inner cavity 130, and the piston assembly 200 is located between the head end and the tail end of the inner cavity 130.
[0040] The piston assembly 200 can move at the head and tail ends of the inner cavity 130. The piston assembly 200 divides the inner cavity 130. The drive port 160 is close to the head end of the inner cavity 130, and the water inlet 140 and the drain port 150 are close to the tail end of the inner cavity 130. Water flows into the inner cavity 130 from the water inlet 140 and then is discharged from the drain port 150, but will not flow to the drive port 160. The structure is tight and the piston assembly 200 moves smoothly and reliably.
[0041] In some embodiments of the present invention, Figures 2 to 5 As shown, the piston assembly 200 includes a piston seat 210 and a sealing ring 220, the driving rod 230 is arranged on the piston seat 210, and the sealing ring 220 is sleeved on the piston seat 210 so that the sealing ring 220 is pressed against the outer peripheral wall of the piston seat 210 and the inner peripheral wall of the inner cavity 130 respectively.
[0042] The sealing ring 220 is elastic and can be made of rubber or elastic resin material. The sealing ring 220 is pressed against the outer wall of the piston seat 210 and the inner wall of the inner cavity 130 respectively. The water flow cannot flow from the tail end of the inner cavity 130 to the head end of the inner cavity 130, thereby ensuring that the water flow exerts sufficient pressure to drive the piston assembly 200 to move. The sealing ring 220 is mounted on the piston seat 210 and can be replaced after aging, thereby reducing maintenance costs.
[0043] Specifically, the outer contour of the piston seat 210 can be circular, square, elliptical, etc., and the inner wall of the inner cavity 130 matches the outer contour of the piston seat 210 to prevent water from flowing through.
[0044] In some embodiments of the present invention, Figure 5 As shown, a pressing assembly is provided on the piston seat 210, and the pressing assembly includes a plurality of pressing blocks 211 arranged along the circumference of the piston seat 210, and a deformation gap 212 is provided between two adjacent pressing blocks 211. The sealing ring 220 is sleeved on the pressing assembly so that each pressing block 211 abuts against the inner circumference of the sealing ring 220.
[0045] The pressing blocks 211 have a certain elasticity relative to the piston seat 210, and each pressing block 211 expands outward relative to the circumference of the piston seat 210. When the sealing ring 220 is sleeved on the pressing assembly, the inner circumference of the sealing ring 220 presses on each pressing block 211, so that the two adjacent pressing blocks 211 are close to each other in the deformation gap 212. The pressing blocks 211 can apply a continuous outward expansion force to the inner circumference of the sealing ring 220, so that the sealing ring 220 can be firmly sleeved on the piston seat 210 during the movement of the piston assembly 200, and can also be tightly pressed against the inner circumferential wall of the inner cavity 130.
[0046] In some embodiments of the present invention, the reset member 300 includes an elastic member, and the elastic member can press against the piston assembly 200 and the inner circumferential wall of the inner cavity 130 respectively to drive the piston assembly 200 to reset.
[0047] The elastic member can be a spring, an elastic rubber column, etc. The elastic member is close to the head end of the inner cavity 130 and one end of the elastic member is pressed against the inner wall of the inner cavity 130, and the other end of the elastic member is pressed against the wall of the piston seat 210. When the piston assembly 200 moves toward the driving port 160, the piston seat 210 squeezes the elastic member to deform, and after the electric control valve body 400 is disconnected, the elastic member drives the piston assembly 200 to reset.
[0048] Specifically, the reset member 300 may also be a counterweight block or the like provided on the piston assembly 200 .
[0049] In some embodiments of the present invention, Figure 2 As shown, the shell 100 includes a base 110 and a top cover 120, the base 110 has a mounting port (not shown in the figure), the mounting port allows the piston assembly 200 to pass through, the top cover 120 is covered on the mounting port and the top cover 120 and the base 110 are detachably connected to enclose the inner cavity 130, the drive port 160 is arranged on the top cover 120, and the water inlet 140 and the drain port 150 are arranged on the base 110.
[0050] The base 110 can be detachably connected to the top cover 120 through a threaded structure or a snap-on structure. When the piston assembly 200 needs to be replaced, the top cover 120 and the base 110 can be separated, the installation port can be opened, and the piston assembly 200 can pass through the installation port to achieve replacement.
[0051] According to the toilet of the second embodiment of the utility model, Figures 1 to 6 As shown, it includes a water tank (not shown in the figure) and a water tank flush valve driving device disclosed in any of the above embodiments, the water tank is provided with a water tank valve body connected to the water storage chamber of the water tank and a driving assembly, the driving assembly is connected to the water tank valve body, the shell 100 is installed on the water tank, the driving rod 230 is pushed out from the driving port 160 so as to act on the driven part of the driving assembly, and the driven part of the driving assembly is subjected to force to enable the water tank valve body to be conductive.
[0052] Among them, the toilet includes a toilet seat and a water tank arranged on the toilet seat, the water tank valve body is connected to the water storage chamber of the water tank, the driving component includes a conventional connecting rod mechanism or an electronic control component, etc., the driving component is provided with a driven part, the driven part can be a flush button or other driven component, the driven part is pressurized to open the water tank valve body, and the water in the water storage chamber is provided to the toilet seat for flushing. The above are all structures of conventional toilets, which are not described in detail here. In this design, the water tank flush valve driving device is installed in the toilet, and the driving rod 230 is facing the driven part. The driving rod 230 is pushed out from the driving port 160 so that it can act on the driven part of the driving component, so that the water tank valve body is opened to realize the flushing action. After the flushing is completed, the driving rod 230 is retracted from the driving port 160 into the inner cavity 130. Without the driving rod 230 applying force to the driven part, the water tank valve body is disconnected and the flushing stops.
[0053] The utility model toilet applies the water tank flushing valve driving device disclosed in any of the above embodiments to automatically drive the water tank valve body to conduct, which saves energy and electricity, has a long service life, and is convenient and reliable to use.
[0054] In some embodiments of the present invention, the drain port 150 is arranged corresponding to the water storage chamber so that the water flowing out of the drain port 150 can enter the water storage chamber, thereby preventing water waste and preventing water from leaking to other locations and causing water accumulation in the bathroom.
[0055] Specifically, the drain port 150 may be located above the water storage chamber or near the top of the water storage chamber, and the water flows directly into the water storage chamber when discharged from the drain port 150 .
[0056] In some embodiments of the present invention, the toilet also includes a sensing module 500 and a control module 600. The sensing module 500 is used to sense to form a feedback signal, and the feedback signal is used to indicate that someone is using the toilet. The control module 600 is respectively connected to the sensing module 500 and the electric control valve body 400 to control the conduction of the electric control valve body 400 according to the feedback signal.
[0057] The control module 600 may include an MCU or CPU and its associated circuits, and the sensing module 500 may include a laser radar, an infrared ranging sensor, etc. When an object is detected in front of the toilet, it is determined that the user is using the toilet. The control module 600 can control the electric control valve body 400 to be turned on after the user uses the toilet, and then the driving rod 230 pushes out to act on the driven part to make the toilet flush automatically.
[0058] In some embodiments of the present invention, the toilet also includes an energy storage component 700 that is detachably arranged on the toilet. The energy storage component 700 is used to power the electric control valve body 400, and can also power the sensing module 500, the control module 600, etc. The energy storage component 700 can be a battery that can be charged and discharged, or it can be a dry cell. A battery box can be provided on the toilet, and the energy storage component 700 can be detachably installed in the battery box. A conductive sheet is provided in the battery box, and the conductive sheet is respectively connected to the control module 600, the sensing module 500, the electric control valve body 400 and other electrical components. The energy storage component 700 contacts the conductive sheet to supply power.
[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A water tank flush valve drive device, characterized in that: include: A housing having an inner cavity, wherein the housing is provided with a water inlet, a water drain port, and a drive port communicating with the inner cavity, wherein the cross-sectional area of the water drain port is smaller than the cross-sectional area of the water inlet; a piston assembly disposed in the housing and capable of moving in the inner cavity, the piston assembly being provided with a drive rod, the drive rod being passed through the drive port; A reset member is provided on the housing, and is used to drive the piston assembly to reset; an electrically controlled valve body, wherein the input end of the electrically controlled valve body is connected to a water supply source, the output end of the electrically controlled valve body is communicated with the water inlet, and the electrically controlled valve body is capable of being conducted so that water flows from the water inlet into the inner cavity; Among them, when water flows into the inner cavity from the water inlet, the water flow can drive the piston assembly to move toward the driving port so that the driving rod is pushed out from the driving port. When the electric control valve body is closed, the reset member can drive the piston assembly to move away from the driving port so that the driving rod is retracted from the driving port into the inner cavity, and the water flows out from the drain port.
2. The water tank flush valve driving device according to claim 1, characterized in that: The inner cavity is in the shape of an elongated strip, the driving port is located at the head end of the inner cavity, the water inlet and the drain port are located at the tail end of the inner cavity, and the piston assembly is located between the head end and the tail end of the inner cavity.
3. The water tank flush valve driving device according to claim 1, characterized in that: The piston assembly includes a piston seat and a sealing ring. The drive rod is arranged on the piston seat. The sealing ring is sleeved on the piston seat so that the sealing ring presses against the outer peripheral wall of the piston seat and the inner peripheral wall of the inner cavity respectively.
4. The water tank flush valve driving device according to claim 3, characterized in that: The piston seat is provided with a pressing assembly, which includes a plurality of pressing blocks arranged along the circumference of the piston seat, with a deformation gap between two adjacent pressing blocks, and the sealing ring is sleeved on the pressing assembly so that each pressing block abuts against the inner circumference of the sealing ring.
5. The water tank flush valve driving device according to claim 1, characterized in that: The reset member includes an elastic member, and the elastic member can press against the piston assembly and the inner peripheral wall of the inner cavity respectively to drive the piston assembly to reset.
6. The water tank flush valve driving device according to claim 1, characterized in that: The shell includes a base and a top cover, the base has a mounting port, the mounting port allows the piston assembly to pass through, the top cover is arranged on the mounting port and the top cover and the base are detachably connected to enclose the inner cavity, the drive port is arranged on the top cover, and the water inlet and the drain port are arranged on the base.
7. A toilet, characterized in that: It comprises a water tank and a water tank flush valve driving device as described in any one of claims 1 to 6, wherein the water tank is provided with a water tank valve body and a driving assembly connected to the water storage chamber of the water tank, the driving assembly is connected to the water tank valve body, the shell is installed on the water tank, the driving rod is pushed out from the driving port so as to act on the driven part of the driving assembly, and the driven part of the driving assembly is subjected to force so as to make the water tank valve body conductive.
8. The toilet according to claim 7, characterized in that: The drain port is arranged corresponding to the water storage cavity so that water flowing out of the drain port can enter the water storage cavity.
9. The toilet according to claim 7, characterized in that: It also includes a sensing module and a control module. The sensing module is used to sense and form a feedback signal, and the feedback signal is used to indicate that someone is using the toilet. The control module is respectively connected to the sensing module and the electric control valve body to control the conduction of the electric control valve body according to the feedback signal.
10. The toilet according to claim 9, characterized in that It also includes an energy storage component that is detachably arranged on the toilet, and the energy storage component is used to supply power to the electric control valve body.