CN113775007A - Hydraulic drive structure and toilet device with same - Google Patents
Hydraulic drive structure and toilet device with same Download PDFInfo
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- CN113775007A CN113775007A CN202111019196.5A CN202111019196A CN113775007A CN 113775007 A CN113775007 A CN 113775007A CN 202111019196 A CN202111019196 A CN 202111019196A CN 113775007 A CN113775007 A CN 113775007A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 422
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 55
- 238000005192 partition Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
- E03D5/024—Operated hydraulically or pneumatically
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Abstract
The invention provides a hydraulic driving structure and a toilet device with the same, wherein the hydraulic driving structure comprises a body, the body is provided with a water inlet channel, a water outlet channel, a pressure relief channel and a control cavity, the control cavity is provided with a water inlet communicated with the water inlet channel, a water outlet communicated with the water outlet channel and a pressure relief opening communicated with the pressure relief channel, and a valve core for controlling the control cavity to be capable of switching among a water inlet state, a pressure maintaining state and a pressure relief state is arranged in the body; when the control cavity is in a water inlet state, the valve core opens the water inlet and closes the pressure relief port; when the control cavity is in a pressure maintaining state, water in the water outlet channel cannot flow out of the water inlet channel and the pressure relief channel; when the control cavity is in a pressure relief state, the valve core closes the water inlet and opens the pressure relief opening. The hydraulic driving structure can maintain the pressure maintaining of the hydraulic cavity at the rear end of the hydraulic driving structure without using the water pressure of the water inlet channel, so that the pressure maintaining effect is not influenced by the water pressure of the water inlet channel, and the stability is better.
Description
Technical Field
The invention relates to the technical field of hydraulic valves, in particular to a hydraulic driving structure and a closestool device with the same.
Background
The hydraulic pressure drain valve that sets up in current toilet tank relies on the inlet pressure drive drain valve of inlet channel usually, because opening of drain valve needs a period, in order to maintain that the drain valve is in the open mode and make the water in the toilet tank have sufficient time to discharge, the inlet channel need keep with the intercommunication in drain valve hydraulic pressure chamber for corresponding pressure can be maintained in drain valve hydraulic pressure chamber, and drain valve hydraulic pressure chamber needs the pressurize promptly, thereby maintains the drainage state.
The mode that current hydraulic pressure drain valve's hydraulic pressure chamber need realize the pressurize through the intercommunication that keeps with the inlet channel, and the pressurize effect is influenced by the water pressure of inlet channel great, causes the unstable problem that leads to drainage poor stability of pressurize easily, for example when the inlet channel is used for supplying water to the multiunit water route probably leads to water pressure unstable, and then influences the pressurize effect to drain valve hydraulic pressure chamber, probably leads to the drain valve to close the scheduling problem in advance.
Disclosure of Invention
The invention provides a hydraulic driving structure and a toilet device with the same, aiming at the problem of poor drainage stability of the existing hydraulic drainage valve in a mode of maintaining the communication between a hydraulic cavity and a water inlet pipeline to realize pressure maintaining.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
a hydraulic drive structure comprises a body, wherein the body is provided with a water inlet channel, a water outlet channel, a pressure relief channel and a control cavity, the control cavity is provided with a water inlet communicated with the water inlet channel, a water outlet communicated with the water outlet channel and a pressure relief opening communicated with the pressure relief channel, and a valve core used for controlling the control cavity to be switched among a water inlet state, a pressure maintaining state and a pressure relief state is arranged in the body; when the control cavity is in the water inlet state, the valve core opens the water inlet and closes the pressure relief opening, and the water inlet channel is communicated with the water outlet channel; when the control cavity is in the pressure maintaining state, water in the water outlet channel cannot flow out of the water inlet channel and the pressure relief channel; when the control cavity is in the pressure relief state, the valve core closes the water inlet and opens the pressure relief opening, and the water outlet channel is communicated with the pressure relief channel.
Preferably, when the control cavity is in the pressure maintaining state, the valve core closes the water inlet and the pressure relief port, so that the water outlet is disconnected from the water inlet and the pressure relief port; or, the water inlet is provided with a one-way valve for controlling the water flow of the water inlet channel to flow into the control cavity in a one-way mode, the control cavity is in the pressure maintaining state, the valve core closes the pressure relief opening, so that the water of the water outlet channel cannot flow out of the pressure relief channel, and the water of the water outlet channel cannot flow out of the water inlet channel under the action of the one-way valve.
Preferably, a control channel is further arranged in the body, the control cavity is provided with a control port communicated with the water outlet end of the control channel, and the water inlet end of the control channel is communicated with the water inlet channel and the pressure relief channel; the valve also comprises a control valve for controlling the opening and closing of the control port, and the position of the valve core is controlled by controlling the opening and closing of the control port; when the control valve opens the control port in the water inlet channel water-passing state, the valve core moves to a position where the control cavity is in the water inlet state under the action of water pressure; in the water inlet state, when the control valve closes the control port, the valve core keeps the position unchanged, so that the control cavity is in the pressure maintaining state; and in the pressure maintaining state and the water stopping state of the water inlet channel, when the control valve opens the control port, the valve core moves to a position where the control cavity is in the pressure relief state under the action of elastic reset force.
Preferably, the pressure relief channel is provided with a pressure relief cavity, and the water outlet, the water inlet channel and the control channel are communicated with the pressure relief cavity.
Preferably, a one-way valve is arranged at the water inlet, and the valve core can move between a first position and a second position in the control cavity under the action of the pressure difference of the water pressure and the action of the elastic reset force; when the control cavity is in the water inlet state, the valve core is located at a first position, and water in the water inlet channel flows to the water outlet channel through the one-way valve; when the control cavity is in the pressure maintaining state, the valve core is kept at the first position, and the one-way valve prevents water in the water outlet channel from flowing to the water inlet channel; when the control cavity is in a pressure relief state, the valve core is located at the second position, the valve core opens the pressure relief port, and the water outlet channel is communicated with the pressure relief channel.
Preferably, one side of the valve core is provided with a first sealing part matched with the water inlet in an opening-closing mode and a second sealing part matched with the pressure relief port in an opening-closing mode, the other side of the valve core is provided with a back pressure part forming a back pressure cavity with the inner wall of the control cavity, the control port is communicated with the back pressure cavity, and the cross sectional area of one side of the back pressure part of the valve core is larger than the sum of the cross sectional areas of the first sealing part and the second sealing part of the valve core; under the water-passing state of the water inlet channel, when the control valve controls the control port to be opened, water of the water inlet channel flows into the back pressure cavity through the control channel, so that the valve core moves from the second position to the first position under the action of pressure difference of water pressure at two sides.
Preferably, the check valve is a Y-shaped sealing element sleeved on the valve core, and the Y-shaped sealing element is matched with the inner wall of the water inlet.
Preferably, the elastic resetting force is provided by an elastic piece arranged in the control cavity, when the control port is opened under the water stop state of the water inlet channel, the valve core is reset to the second position under the action of the elastic piece and the water in the back pressure cavity is discharged to the pressure relief channel through the control channel.
Preferably, the control valve is a first electromagnetic valve, and the time between the first opening and the second opening of the first electromagnetic valve is the time when the control cavity is in the pressure maintaining state; the water inlet channel is communicated with the water inlet channel, the water inlet channel is communicated with the water inlet channel, and the water inlet channel is communicated with the water inlet channel, and the water inlet channel is communicated with the water inlet channel, and the water inlet channel, and the first electromagnetic valve are connected to the main control panel, and the main panel for controlling the first electromagnetic valve, and the second electromagnetic valve, and the first electromagnetic valve, and the second electromagnetic valve, and a main control panel for controlling the first electromagnetic valve, and a main control panel for controlling the first electromagnetic valve, and for controlling the first electromagnetic valve, wherein the first electromagnetic valve, and a first electromagnetic valve, and for controlling the first electromagnetic valve, and.
The invention also provides a toilet device, which comprises a hydraulic drainage valve for controlling the drainage of the toilet water tank and the hydraulic driving structure, wherein a hydraulic cavity of the hydraulic drainage valve is communicated with the water outlet channel.
The invention has the following beneficial effects:
the hydraulic driving structure of the invention is provided with a water inlet channel, a water outlet channel, a pressure relief channel, a control cavity and a valve core for controlling the control cavity to be capable of switching among a water inlet state, a pressure maintaining state and a pressure relief state, when the control cavity is in the water inlet state, the valve core opens the water inlet and closes the pressure relief opening, the water inlet channel is communicated with the water outlet channel so as to be capable of providing pressure water for a hydraulic cavity at the rear end of the water inlet channel, when the control cavity is in the pressure maintaining state, water in the water outlet channel cannot flow out from the water inlet channel and the pressure relief channel, when the control cavity is in the pressure relief state, the valve core closes the water inlet and opens the pressure relief opening, the water outlet channel is communicated with the pressure relief channel so as to carry out normal pressure relief, thereby being capable of maintaining the pressure of the hydraulic cavity (such as the hydraulic cavity of a hydraulic drain valve for a toilet water tank) arranged at the rear end of the hydraulic driving structure, and the pressure maintaining is not maintained by the water pressure of the water inlet channel, so that the function of the hydraulic cavity at the rear end of the hydraulic driving structure is not influenced by the water pressure of the water inlet channel, and the water of the water inlet channel is allowed to be closed or switched to other purposes in the pressure maintaining stage. The closestool device for driving the hydraulic drain valve in the closestool water tank by using the hydraulic driving structure can effectively improve the reliability and stability of drainage and ensure the normal flushing function of the closestool.
Drawings
FIG. 1: the overall structure schematic diagram of the hydraulic drive structure of the first embodiment of the invention;
FIG. 2: a schematic cross-sectional structure diagram of a hydraulic drive structure of a first embodiment of the invention;
FIG. 3: a schematic diagram of a control chamber of a hydraulic drive structure according to a first embodiment of the present invention in a pressure relief state (a hydraulic drain valve is not opened);
FIG. 4: a schematic diagram of a control chamber of a hydraulic drive structure according to a first embodiment of the present invention in a water intake state (starting a hydraulic drain valve to drain);
FIG. 5: a schematic diagram of a control chamber of a hydraulic drive structure according to a first embodiment of the present invention in a pressure maintaining state (continuous drainage by a hydraulic drain valve);
FIG. 6: a schematic diagram of a control chamber of a hydraulic drive structure according to a first embodiment of the present invention in a pressure relief state (closing of a hydraulic drain valve);
FIG. 7: the structure of the valve core of the first embodiment of the invention is shown schematically;
FIG. 8: the structure of the valve core of the first embodiment of the invention is schematically shown after a first sealing part, a second sealing part, a one-way valve and a second sealing ring are removed;
FIG. 9: a front view of the valve cartridge of the first embodiment of the present invention;
FIG. 10: a cross-sectional view of the hydraulic drive structure of the second embodiment of the invention (the spool is in the second position, and the control chamber is in a pressure relief state);
FIG. 11: a sectional view of a hydraulic drive structure of a second embodiment of the invention (the spool is located at the first position, and the control chamber is in a water intake state or a pressure maintaining state);
FIG. 12: the invention discloses a hydraulic driving structure and an assembly structure schematic diagram of a hydraulic drain valve;
in the figure: 10. a body; 11. a water inlet channel; 12. a water outlet channel; 13. a pressure relief channel; 131. a pressure relief cavity; 14. a control chamber; 141. a water inlet; 142. a water outlet; 143. a pressure relief port; 144. a control port; 15. a control channel; 16. a back pressure chamber; 20. a valve core; 21. a first seal portion; 211. a first mounting groove; 212. a second mounting groove; 22. a second seal portion; 221. a third mounting groove; 23. a back pressure part; 24. a first shaft body; 25. a second shaft body; 231. a fourth mounting groove; 232. a spring mount; 30. one-way valves (Y-seals); 40. an elastic member; 50. a control valve; 60. a second seal ring; 70. a hydraulic drain valve; 80. air separation; 90. an electric motor.
Detailed Description
The problem of poor drainage stability exists in the mode that current hydraulic pressure drain valve need be through keeping hydraulic pressure chamber and inlet channel intercommunication in order to realize the pressurize. Therefore, the present invention provides a new solution, which will be described in detail below with reference to the accompanying drawings for better clarity.
Referring to fig. 1 to 9, a hydraulic drive structure according to a first embodiment of the present invention includes a body 10, where the body 10 is provided with a water inlet channel 11, a water outlet channel 12, a pressure relief channel 13, and a control cavity 14, and the control cavity 14 is provided with a water inlet 141 communicated with the water inlet channel 11, a water outlet 142 communicated with the water outlet channel 12, and a pressure relief opening 143 communicated with the pressure relief channel 13. A valve core 20 for controlling the control cavity 14 to be switched among a water inlet state, a pressure maintaining state and a pressure relief state is arranged in the body 10.
Referring to fig. 4, when the control chamber 14 is in the water inlet state, the valve core 20 opens the water inlet 141 and closes the pressure relief port 143, so that the water inlet channel 11 is communicated with the water outlet channel 12 to provide hydraulic pressure to the hydraulic chamber downstream of the water outlet channel 12;
referring to fig. 5, when the control chamber 14 is in the pressure maintaining state, no water in the water outlet channel 12 flows out from the water inlet channel 11 and the pressure relief channel 13; in this embodiment, in the pressure maintaining state, the following manner is adopted to prevent the water in the water outlet channel 12 from flowing out of the water inlet channel 11 and the pressure relief channel 13: a one-way valve 30 for controlling the water flow of the water inlet channel 11 to flow into the control chamber 14 in one direction is further disposed at the water inlet 141, when the control chamber 14 is in the pressure maintaining state, the valve element 20 keeps the position unchanged, the valve element 20 keeps closing the pressure relief opening 143, so that the water of the water outlet channel 12 does not flow out from the pressure relief channel 13, and the valve element 20 keeps opening the water inlet 141, but the water of the water outlet channel 12 does not flow out from the water inlet 141 under the action of the one-way valve 30. Of course, in other embodiments not shown in the drawings, the control valve 20 may also be moved to a position where both the water inlet 141 and the pressure relief port 143 are closed when the control chamber 14 is in the pressure maintaining state, so that the water outlet 142 is disconnected from both the water inlet 141 and the pressure relief port 143, respectively, and thus the water in the water outlet channel 12 does not flow out from both the water inlet channel 11 and the pressure relief channel 13.
Referring to fig. 3 and 6, when the control chamber 14 is in the pressure relief state, the valve core 20 closes the water inlet 141 and opens the pressure relief port 143, and the water outlet channel 12 is communicated with the pressure relief channel 13, so that water in a hydraulic chamber (not shown) at the rear end of the hydraulic drive structure (i.e. downstream of the water outlet channel 12) can be drained through the water outlet channel 12 and the pressure relief channel 13 to prepare for the next hydraulic drive.
Referring to fig. 2-6, a control channel 15 is further disposed in the body 10, the control cavity 14 is provided with a control port 144 communicated with the water outlet end of the control channel 15, and the water inlet end of the control channel 15 is communicated with the water inlet channel 11 and the pressure relief channel 13, that is, when the water inlet channel 11 is filled with water, a part of water flows to the control channel 15 for control, and a part of water flows to the pressure relief channel 13, so that when the hydraulic driving structure is not in operation, the water flow remaining in the water inlet channel 11 can be slowly released from the pressure relief channel 13, thereby avoiding the problem of water path blockage or poor sealing caused by scale deposit in the water path, and as can be understood, the flow cross-sectional area of the pressure relief channel 13 needs to be small, and avoiding a large amount of water flow from the channel 13 from flowing out in white when the water inlet channel 11 is filled with water for pressure relief. Preferably, a pressure relief cavity 131 is arranged on the pressure relief channel 13, and the water outlet 142, the water inlet channel 11 and the control channel 15 are all communicated with the pressure relief cavity 131.
The hydraulic drive structure further includes a control valve 50 for controlling opening and closing of the control port 144, and the position of the valve body 20 is controlled by controlling opening and closing of the control port 144.
The position of the valve element 20 is controlled by controlling the opening and closing of the control port 144, specifically, by the following method: when the control valve 50 opens the control port 144 in the water inlet channel 11, the valve core 20 is moved by the water pressure to a position where the control chamber 14 is in the water inlet state; in the water inlet state, when the control valve 50 closes the control port 144, the valve element 20 remains in a fixed position, so that the control chamber 14 is in a pressure maintaining state; in the pressure maintaining state and the water stopping state of the water inlet channel 11, when the control valve 50 opens the control port 144, the valve core 20 moves to a position where the control chamber 14 is in a pressure relief state under the action of an elastic restoring force.
With continued reference to fig. 2-6, as mentioned above, the water inlet 141 is provided with the check valve 30, and the valve core 20 is movable between the first position and the second position in the control chamber 14 under the action of the pressure difference of the water pressure and the elastic restoring force; when the control chamber 14 is in the water inlet state, the valve core 20 is in the first position, and water in the water inlet passage 11 flows to the water outlet passage 12 through the one-way valve 30; when the control chamber 14 is in the pressure maintaining state, the valve element 20 remains at the first position, and the check valve 30 prevents the water in the water outlet passage 12 from flowing to the water inlet passage 11; when the control cavity 14 is in a pressure relief state, the valve core 20 is located at the second position, the valve core 20 opens the pressure relief port 143, and the water outlet channel 12 is communicated with the pressure relief channel 13.
Referring to fig. 7 to 9, a first sealing portion 21 that is in open-close engagement with the water inlet 141 and a second sealing portion 22 that is in open-close engagement with the pressure relief port 143 are disposed on one side of the valve element 20, and a back pressure portion 23 that forms a back pressure chamber 16 with an inner wall of the control chamber 14 is disposed on the other side of the valve element 20. Specifically, the back pressure chamber 16 is formed by the bottom surface of the back pressure part 23 and the inner wall of the control chamber 14. The control port 144 communicates with the back pressure chamber 16. As shown in fig. 9, the hydraulic pressure receiving cross-sectional area S1 on the back pressure portion 23 side of the valve element 20 is larger than the sum of the hydraulic pressure receiving cross-sectional areas on the first sealing portion 21 and the second sealing portion 22 side of the valve element 20, i.e., S1> S2+ S3, and since the hydraulic pressure receiving cross-sectional areas on both sides of the valve element 20 are different, when the inlet water pressure of the inlet passage is applied to both sides of the valve element 20, the hydraulic pressure acting force on the back pressure portion 23 side of the valve element 20 is larger than the hydraulic pressure acting force on the first sealing portion 21 and the second sealing portion 22 side of the valve element 20 at the same inlet water pressure, so that the valve element 20 is moved to the switching state by the water pressure difference. In this way, when the control valve 50 controls the control port 144 to open in the water flowing state of the water inlet channel 11, the water in the water inlet channel 11 flows into the back pressure chamber 16 through the control channel 15, so that the valve element 20 moves from the second position to the first position under the action of the pressure difference between the two sides of the water pressure.
In this embodiment, it is preferable that the valve body 20 is provided with a first shaft body 24 and a second shaft body 25 which are arranged side by side on the top surface of the back pressure portion 23, the first sealing portion 21 is a sealing sheet which is arranged on one end of the first shaft body 24 far away from the back pressure portion 23, the first shaft body 24 extends from the water inlet 141 of the control chamber 14, and the first sealing portion 21 is located outside the control chamber 14; the second sealing portion 22 is composed of first sealing rings arranged on the first shaft body 24 and the second shaft body 25, the second sealing portion 22 closes the pressure relief opening 143, namely the first sealing ring moves along with the valve core 20 to isolate the water outlet channel 12 and the pressure relief channel 13, and the second sealing portion 22 opens the pressure relief opening 143, namely the first sealing ring moves along with the valve core 20 to communicate the water outlet channel 12 and the pressure relief channel 13. The first sealing ring is preferably a Y-shaped sealing ring.
The check valve 30 is a Y-shaped sealing member sleeved on the first shaft 24 of the valve core 20, and the Y-shaped sealing member is matched with the inner wall of the water inlet 141. The first shaft body 24 is provided with a first mounting groove 211 for mounting the Y-shaped seal 31.
The back pressure portion 23 of the valve core 20 is further provided with a second sealing ring 60, and the second sealing ring 60 is matched with the inner wall of the control cavity 14 to seal the back pressure cavity 16. The first shaft body 24 is further provided with a second mounting groove 212 for mounting a first sealing ring, the second shaft body 25 is provided with a third mounting groove 221 for mounting the first sealing ring, the second mounting groove 212 and the third mounting groove 221 are located at the same horizontal height, and the back pressure portion 23 is provided with a fourth mounting groove 231 for mounting the second sealing ring 60. The second seal ring 60 is also a Y-shaped seal ring in this embodiment. In this embodiment, the check valve 30, the first sealing ring and the second sealing ring 60 are all designed as Y-shaped sealing ring structures, so that the sealing performance is better and smooth sliding of the valve core 20 is more facilitated.
In this embodiment, the elastic restoring force is provided by an elastic member 40 in the control chamber 14, the elastic member 40 is a spring, and the back-pressing portion 23 is provided with a spring mounting seat 232 for mounting the spring.
When the control valve 50 controls the control port 144 to open in the water stop state of the water inlet channel 11, the valve core 20 is reset to the second position under the action of the elastic member 40 and discharges the water in the back pressure cavity 16 from the control channel 15 to the pressure relief channel 13.
The control valve 50 is a first solenoid valve, and the time between the first opening and the second opening of the first solenoid valve 50 is the time when the control chamber 14 is in the pressure holding state.
The hydraulic driving structure further includes a second solenoid valve (not shown) for controlling the water supply and water cut-off of the water inlet channel 11, and a main control board (not shown) for controlling the opening and closing of the first solenoid valve 50 and the second solenoid valve, wherein the first solenoid valve 50 and the second solenoid valve are both connected to the main control board.
The brief workflow/working principle of this embodiment is as follows:
referring to fig. 3 (the control chamber 14 is in a pressure relief state, the hydraulic drain valve 70 is not opened), the control valve 50 (the first solenoid valve) is not activated, the valve core 20 is in the second position, the second solenoid valve is opened, so that the water enters the water inlet channel 11, a part of the water (a water path) in the water inlet channel 11 flows out from the pressure relief port 143 (d water path), and the other part of the water remains in the control channel 15(b water path);
referring to fig. 4 (the control chamber 14 is in a water inlet state, and the hydraulic drain valve 70 is started to drain water), the control valve 50 (the first electromagnetic valve) is opened to open the control port 144, at this time, a small part of the water flow (a water path) in the water inlet channel 11 flows out of the pressure relief channel 13 (d water path), and another small part of the water flow flows into the back pressure chamber 16(g water path) through the control port 144 via the control channel 15(b water path), so that the valve core 20 moves upward to the first position under the action of the water pressure force, and further the water inlet 141 is opened, the pressure relief port 143 is closed, at this time, most of the water in the water inlet channel 11 enters the control chamber 14 and flows out of the water outlet channel 12 (f), and further flows into the hydraulic drain valve 70 at the rear end to drive the hydraulic drain valve 70 to open the drain;
referring to fig. 5 (the control chamber 14 is in a pressure maintaining state, and the hydraulic drain valve 70 continuously drains water), after the hydraulic drain valve 70 is opened, the control valve 50 (the first electromagnetic valve) is closed, so that the control port 144 is closed, so that water in the back pressure chamber 16 does not flow out from the control port 144, and the valve core 20 is kept at the first position, at this time, the second sealing portion 22 of the valve core 20 keeps closing the pressure relief port 143, so that water in the water outlet channel 12 does not flow out from the pressure relief port 143, although the first sealing portion 21 of the valve core 20 keeps opening the water inlet 141, water in the water outlet channel 12 does not flow out from the water inlet 141 under the action of the check valve 30, so that the control chamber 14 is in the pressure maintaining state, and the hydraulic drain valve 70 continuously drains water (the pressure maintaining time is the water draining duration time), at this time, the second sealing portion is closed, so that the water inlet channel stops water (or the water inlet channel is switched to be used by other waterways), the water pressure of the water inlet channel does not influence the pressure maintaining effect;
referring to fig. 6, (the control chamber 14 is in a pressure relief state, and the hydraulic drain valve 70 is closed), when the second electromagnetic valve is closed to stop water in the water inlet channel 11, the control valve 50 (the first electromagnetic valve) is started again to open the control port 144, the back pressure chamber 16 is not pressurized any more, the valve core 20 moves downward to the second position under the elastic force of the spring (the elastic member 40), so as to close the water inlet 141 and open the pressure relief port 143, the water outlet 142 is communicated with the pressure relief port 143, at the same time, the water in the back pressure chamber 16 flows out from the control port 144 to the control channel 15 under the squeezing of the valve core 20, and then flows out from the pressure relief channel 13, the water in the hydraulic chamber of the hydraulic drain valve 70 flows into the pressure relief port 143 through the water outlet channel 12, and then flows out from the pressure relief channel 13(e water channel), and accordingly, the hydraulic drain valve 70 can be closed after the hydraulic function is lost. Eventually causing the control valve 50 to re-close the control port 144 and return to the condition shown in figure 3.
In the above control process, the second solenoid valve (fig. 3) is firstly opened and then the first solenoid valve (fig. 4) is opened, and of course, the first solenoid valve and then the second solenoid valve may be opened, or the first solenoid valve and the second solenoid valve may be opened simultaneously. After the pressure relief state of fig. 6, the first electromagnetic valve may not be closed, and of course, if the second electromagnetic valve is used as a water inlet valve of the water tank (as described above), the first electromagnetic valve needs to be closed after the pressure relief state of fig. 6 is finished, so that the hydraulic drive structure can be restored to the state shown in fig. 3.
In other embodiments, the specific structure of the valve core 20 may be set as required, for example, it is not necessary to provide the first shaft body 24 and the second shaft body 25, etc.
Referring to fig. 10 and 11, a hydraulic drive structure according to a second embodiment of the present invention includes a body 10, where the body 10 is provided with a water inlet channel 11, a water outlet channel 12, a pressure relief channel 13, and a control cavity 14, and the control cavity 14 is provided with a water inlet 141 communicated with the water inlet channel 11, a water outlet 142 communicated with the water outlet channel 12, and a pressure relief port 143 communicated with the pressure relief channel 13. A valve core 20 for controlling the control cavity 14 to be switched among a water inlet state, a pressure maintaining state and a pressure relief state is arranged in the body 10.
The valve body 20 is provided with a first sealing portion 21 which is in open-close engagement with the water inlet 141 and a second sealing portion 22 which is in open-close engagement with the pressure relief port 143.
Referring to fig. 11, when the control chamber 14 is in the water inlet state, the valve core 20 opens the water inlet 141 and closes the pressure relief port 143, so that the water inlet channel 11 is communicated with the water outlet channel 12 to provide hydraulic pressure to the hydraulic chamber downstream of the water outlet channel 12;
with continued reference to fig. 11, when the control chamber 14 is in the pressure maintaining state, no water in the water outlet channel 12 flows out from the water inlet channel 11 and the pressure relief channel 13; in this embodiment, in the pressure maintaining state, the following manner is adopted to prevent the water in the water outlet channel 12 from flowing out of the water inlet channel 11 and the pressure relief channel 13: a one-way valve 30 for controlling the water flow of the water inlet channel 11 to flow into the control chamber 14 in one direction is further disposed at the water inlet 141, when the control chamber 14 is in the pressure maintaining state, the valve element 20 keeps the position unchanged, the valve element 20 keeps closing the pressure relief opening 143, so that the water in the water outlet channel 12 does not flow out from the pressure relief channel 13, and the valve element 20 keeps opening the water inlet 141, but the water in the water outlet channel 12 does not flow out from the water inlet 141 under the action of the one-way valve 30. Of course, in other embodiments not shown in the drawings, the control valve 20 may also be moved to a position where both the water inlet 141 and the pressure relief port 143 are closed when the control chamber 14 is in the pressure maintaining state, so that the water outlet 142 is disconnected from both the water inlet 141 and the pressure relief port 143, respectively, and thus the water in the water outlet channel 12 does not flow out from both the water inlet channel 11 and the pressure relief channel 13.
Referring to fig. 10, when the control chamber 14 is in the pressure relief state, the valve core 20 closes the water inlet 141 and opens the pressure relief port 143, and the water outlet channel 12 is communicated with the pressure relief channel 13, so that water in a hydraulic chamber (not shown) at the rear end of the hydraulic driving structure (i.e. downstream of the water outlet channel 12) can be drained through the water outlet channel 12 and the pressure relief channel 13 to prepare for the next hydraulic driving.
With continued reference to fig. 10 and 11, as mentioned above, the water inlet 141 is provided with the check valve 30, and the motor 90 is used to control the valve core 20 to move between the first position and the second position in the control chamber 14; when the control chamber 14 is in the water inlet state, the valve core 20 is in the first position, and water in the water inlet passage 11 flows to the water outlet passage 12 through the one-way valve 30; when the control chamber 14 is in the pressure maintaining state, the valve element 20 remains at the first position, and the check valve 30 prevents the water in the water outlet passage 12 from flowing to the water inlet passage 11; when the control cavity 14 is in a pressure relief state, the valve core 20 is located at the second position, the valve core 20 opens the pressure relief port 143, and the water outlet channel 12 is communicated with the pressure relief channel 13.
The check valve 30 is a Y-shaped sealing element sleeved on the valve core 20, and the Y-shaped sealing element is matched with the inner wall of the water inlet 141. The valve core 20 is provided with a first mounting groove 211 for mounting the Y-shaped sealing member 31. Preferably, the second sealing portion 22 also adopts a Y-shaped sealing structure, so that the sealing effect is better.
Referring to fig. 12, the embodiment further provides a toilet device using the above hydraulic driving structure, which includes a hydraulic drain valve 70 for controlling drainage of a toilet tank (not shown) and the above hydraulic driving structure, wherein a hydraulic chamber of the hydraulic drain valve 70 is communicated with the water outlet channel 12 of the hydraulic driving structure. Preferably, an air partition 80 is disposed on the water inlet channel 11 of the hydraulic driving structure, that is, the air partition 80 connects the water inlet channel 11 with the outside air, so as to avoid siphon backflow of water flow, and an inlet of the water inlet channel 11 is connected to an external water inlet pipe (such as a tap water pipe). It should be noted that the hydraulic driving structure of the present invention is particularly suitable for the water inlet channel 11 with the air partition 80, so as to ensure the stability of the water discharge of the water tank, and the specific reason is as follows: when the water inlet channel 11 is filled with water, part of the water is often splashed into the water tank from the air partition 80, so that the water quantity of the water tank is changed; in the prior art, when pressure is maintained by depending on the water pressure of the water inlet channel 11, due to the existence of the air partition 80, the amount of water sprayed into the water tank from the air partition 80 in the water supply state of the water inlet channel 11 is different due to the difference of the water supply pressure, so that the difference of the water discharge amount of the water tank is large, and the water discharge amount stability is poor; however, with the hydraulic driving structure of the present invention, it is not necessary to keep the water flowing state of the water inlet channel 11 during pressure maintaining, so that the water inlet channel 11 can be closed to stop water in the pressure maintaining state, and no water flow splashes into the water tank from the air partition 80 at this stage, so that the water discharge of the water tank is stable. In addition, when the hydraulic drain valve 70 is not in operation, the air partition 80 can also be used as an outlet of the water inlet channel 11 for filling water into the water tank, so that the second electromagnetic valve is simultaneously used as a water inlet valve of the water tank, the water tank does not need to be additionally provided with a water inlet valve, the cost is saved, the space in the water tank is saved, and the structure is simpler.
The water inlet passage 11 with the air partition 80 of the present embodiment is partially communicated with the body 10 by a screw.
Although the present invention has been described in detail in the foregoing embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A hydraulic drive arrangement, characterized by: the pressure relief valve comprises a body, wherein the body is provided with a water inlet channel, a water outlet channel, a pressure relief channel and a control cavity, the control cavity is provided with a water inlet communicated with the water inlet channel, a water outlet communicated with the water outlet channel and a pressure relief opening communicated with the pressure relief channel, and a valve core used for controlling the control cavity to be capable of switching among a water inlet state, a pressure maintaining state and a pressure relief state is arranged in the body; when the control cavity is in the water inlet state, the valve core opens the water inlet and closes the pressure relief opening, and the water inlet channel is communicated with the water outlet channel; when the control cavity is in the pressure maintaining state, water in the water outlet channel cannot flow out of the water inlet channel and the pressure relief channel; when the control cavity is in the pressure relief state, the valve core closes the water inlet and opens the pressure relief opening, and the water outlet channel is communicated with the pressure relief channel.
2. A hydraulic drive arrangement according to claim 1, wherein: when the control cavity is in the pressure maintaining state, the valve core closes the water inlet and the pressure relief port, so that the water outlet is disconnected with the water inlet and the pressure relief port; or,
the water inlet is provided with a water inlet channel, the water inlet channel is provided with a water outlet, the water outlet channel is communicated with the water inlet channel, the water inlet is communicated with the water outlet channel, the water outlet channel is communicated with the water outlet channel, the water inlet is communicated with the water outlet channel, the water outlet is communicated with the water outlet channel, the one-way valve is further arranged at the water inlet and used for controlling the water flow of the water inlet channel to flow into the control cavity in a one-way mode, and the control cavity is in the pressure maintaining state, the valve core closes the pressure relief port, so that the water of the water outlet channel cannot flow out of the water inlet channel.
3. A hydraulic drive arrangement according to claim 1, wherein: a control channel is further arranged in the body, the control cavity is provided with a control port communicated with the water outlet end of the control channel, and the water inlet end of the control channel is communicated with the water inlet channel and the pressure relief channel; the valve also comprises a control valve for controlling the opening and closing of the control port, and the position of the valve core is controlled by controlling the opening and closing of the control port; when the control valve opens the control port in the water inlet channel water-passing state, the valve core moves to a position where the control cavity is in the water inlet state under the action of water pressure; in the water inlet state, when the control valve closes the control port, the valve core keeps the position unchanged, so that the control cavity is in the pressure maintaining state; and in the pressure maintaining state and the water stopping state of the water inlet channel, when the control valve opens the control port, the valve core moves to a position where the control cavity is in the pressure relief state under the action of elastic reset force.
4. A hydraulic drive arrangement according to claim 3, wherein: the pressure relief channel is provided with a pressure relief cavity, and the water outlet, the water inlet channel and the control channel are communicated with the pressure relief cavity.
5. A hydraulic drive arrangement according to claim 3, wherein: the water inlet is provided with a one-way valve, and the valve core can move between a first position and a second position in the control cavity under the action of water pressure difference and elastic reset force; when the control cavity is in the water inlet state, the valve core is located at a first position, and water in the water inlet channel flows to the water outlet channel through the one-way valve; when the control cavity is in the pressure maintaining state, the valve core is kept at the first position, and the one-way valve prevents water in the water outlet channel from flowing to the water inlet channel; when the control cavity is in a pressure relief state, the valve core is located at the second position, the valve core opens the pressure relief port, and the water outlet channel is communicated with the pressure relief channel.
6. A hydraulic drive arrangement according to claim 5, wherein: one side of the valve core is provided with a first sealing part matched with the water inlet in an opening and closing way and a second sealing part matched with the pressure relief port in an opening and closing way, the other side of the valve core is provided with a back pressure part forming a back pressure cavity with the inner wall of the control cavity, the control port is communicated with the back pressure cavity, and the cross sectional area of one side of the back pressure part of the valve core is larger than the sum of the cross sectional areas of the first sealing part and the second sealing part of the valve core; under the water-passing state of the water inlet channel, when the control valve controls the control port to be opened, water of the water inlet channel flows into the back pressure cavity through the control channel, so that the valve core moves from the second position to the first position under the action of pressure difference of water pressure at two sides.
7. A hydraulic drive arrangement according to claim 6, wherein: the check valve is a Y-shaped sealing element sleeved on the valve core, and the Y-shaped sealing element is matched with the inner wall of the water inlet.
8. A hydraulic drive arrangement according to claim 6, wherein: elasticity reset force is by locating the elastic component of control intracavity provides, under the inhalant canal stagnant water state, the control valve control when the control mouth is opened, the case is in reset under the elastic component effect extremely the second position will the water of backpressure intracavity is by control channel lets out extremely pressure release channel.
9. A hydraulic drive arrangement according to claim 3, wherein: the control valve is a first electromagnetic valve, and the time between the first opening and the second opening of the first electromagnetic valve is the time when the control cavity is in the pressure maintaining state; the water inlet channel is communicated with the water inlet channel, the water inlet channel is communicated with the water inlet channel, and the water inlet channel is communicated with the water inlet channel, and the water inlet channel is communicated with the water inlet channel, and the water inlet channel, and the first electromagnetic valve are connected to the main control panel, and the main panel for controlling the first electromagnetic valve, and the second electromagnetic valve, and the first electromagnetic valve, and the second electromagnetic valve, and a main control panel for controlling the first electromagnetic valve, and a main control panel for controlling the first electromagnetic valve, and for controlling the first electromagnetic valve, wherein the first electromagnetic valve, and a first electromagnetic valve, and for controlling the first electromagnetic valve, and.
10. A toilet device, comprising a hydraulic drain valve for controlling the drainage of a toilet tank, characterized in that: further comprising a hydraulic drive arrangement according to any one of claims 1-9, the hydraulic chamber of the hydraulic drain valve being in communication with the outlet passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019196.5A CN113775007A (en) | 2021-09-01 | 2021-09-01 | Hydraulic drive structure and toilet device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019196.5A CN113775007A (en) | 2021-09-01 | 2021-09-01 | Hydraulic drive structure and toilet device with same |
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| Publication Number | Publication Date |
|---|---|
| CN113775007A true CN113775007A (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111019196.5A Pending CN113775007A (en) | 2021-09-01 | 2021-09-01 | Hydraulic drive structure and toilet device with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023206736A1 (en) * | 2022-04-26 | 2023-11-02 | 漳州松霖智能家居有限公司 | Pull-up switching valve, and water outlet device |
| WO2024082547A1 (en) * | 2022-10-20 | 2024-04-25 | 厦门瑞尔特卫浴科技股份有限公司 | Constant-air-volume air output device and air pump device having same, and toilet |
-
2021
- 2021-09-01 CN CN202111019196.5A patent/CN113775007A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023206736A1 (en) * | 2022-04-26 | 2023-11-02 | 漳州松霖智能家居有限公司 | Pull-up switching valve, and water outlet device |
| WO2024082547A1 (en) * | 2022-10-20 | 2024-04-25 | 厦门瑞尔特卫浴科技股份有限公司 | Constant-air-volume air output device and air pump device having same, and toilet |
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