CN111608233A - Hydraulic driving mechanism and drainage device with same - Google Patents
Hydraulic driving mechanism and drainage device with same Download PDFInfo
- Publication number
- CN111608233A CN111608233A CN202010586919.9A CN202010586919A CN111608233A CN 111608233 A CN111608233 A CN 111608233A CN 202010586919 A CN202010586919 A CN 202010586919A CN 111608233 A CN111608233 A CN 111608233A
- Authority
- CN
- China
- Prior art keywords
- water inlet
- water
- hydraulic cylinder
- hydraulic
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
- E03D1/35—Flushing valves having buoyancy
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic driving mechanism and a drainage device with the same, wherein the hydraulic driving mechanism comprises a body with a water inlet channel and a hydraulic assembly, the hydraulic assembly comprises a hydraulic cylinder, a piston matched with the hydraulic cylinder and a reset piece used for providing reset force for the piston, the water inlet channel supplies water for the hydraulic cylinder, the water flow pressure of the water inlet channel pushes the piston to move, an open air partition is formed between a water outlet of the water inlet channel and a water inlet of the hydraulic cylinder, a water outlet of the water inlet channel corresponds to the position of the water inlet of the hydraulic cylinder, and the water flow of the water inlet channel flows to the water inlet of the hydraulic cylinder after being partitioned by the air. The hydraulic driving mechanism has an anti-siphon function and a simple and compact structure.
Description
Technical Field
The present invention relates to a hydraulic drive mechanism and a drainage device having the same.
Background
In the prior art, a hydraulic driving mechanism is adopted to drive a drain valve in a water tank, specifically, when water flow enters a hydraulic cylinder of the hydraulic driving mechanism, water pressure pushes a piston in the hydraulic cylinder, the piston is further linked with a starting assembly of the drain valve, and the starting assembly of the drain valve is further used for controlling to open a drain outlet of the drain valve; when the hydraulic cylinder stops water inflow, the piston is not under the action of water pressure any more, and the piston discharges water in the hydraulic cylinder under the action of the received reset force, so that the piston is reset to prepare for driving the water discharge next time.
However, in the conventional hydraulic driving mechanism, when a negative pressure occurs in a water inlet channel for supplying water to the hydraulic cylinder, a siphon phenomenon may occur to cause water in the water tank to flow back to the water inlet channel via the hydraulic cylinder, thereby polluting a water source.
Accordingly, the present invention has been made.
Disclosure of Invention
The invention aims to provide a hydraulic driving mechanism and a drainage device with the same, which have an anti-siphon function and are simple and compact in structure.
In order to achieve the above object, according to one aspect of the present invention, the technical solution adopted by the present invention is: hydraulic drive mechanism, including the body and a hydraulic assembly that have inhalant canal, hydraulic assembly include the pneumatic cylinder, with pneumatic cylinder matched with piston and be used for right the piston provides the piece that resets of power that resets, inhalant canal is right the pneumatic cylinder supplies water, inhalant canal's rivers pressure promotes the piston motion, inhalant canal's delivery port with form open air between the water inlet of pneumatic cylinder and cut off, inhalant canal's delivery port with the water inlet position of pneumatic cylinder is corresponding, inhalant canal's rivers via the air cuts off the back flow extremely the water inlet of pneumatic cylinder.
Preferably, when the water inlet channel stops water, the water in the hydraulic cylinder flows out to the outside through the water inlet of the hydraulic cylinder under the pushing of the piston.
Preferably, a switch valve is arranged at the water inlet of the hydraulic cylinder, and when the water inlet channel is filled with water, the switch valve is in a state of opening the water inlet of the hydraulic cylinder; when the water inlet channel stops water, the switch valve closes the water inlet of the hydraulic cylinder and reopens the water inlet of the hydraulic cylinder after preset time.
Preferably, a one-way valve is arranged at a water inlet of the hydraulic cylinder, the one-way valve opens the water inlet of the hydraulic cylinder in one way under the action of water flow of the water inlet channel, a water outlet communicated with an inner cavity of the hydraulic cylinder is arranged on the hydraulic cylinder, a water outlet opening and closing mechanism is arranged at the water outlet, and the water outlet opening and closing mechanism closes the water outlet in the process of supplying water to the hydraulic cylinder by the water inlet channel; when the drain opening/closing mechanism opens the drain opening, the water in the hydraulic cylinder flows out through the drain opening by being pushed by the piston.
Preferably, the drain opening/closing mechanism is an electrically controlled opening/closing valve, a mechanical opening/closing valve, or a buoyancy control valve.
Preferably, the cross-sectional area S2 of the water outlet of the water inlet channel is smaller than the cross-sectional area S1 of the water inlet channel.
Preferably, the distance L between the water outlet of the water inlet channel and the water inlet of the hydraulic cylinder is more than or equal to 20 mm.
Preferably, a flow guide section is arranged at the water outlet of the water inlet channel.
Preferably, the cross-sectional dimension of the water outlet of the water inlet channel is substantially the same as the cross-sectional dimension of the water inlet of the hydraulic cylinder.
Preferably, the water inlet department of pneumatic cylinder is equipped with a funnel water conservancy diversion structure, funnel water conservancy diversion structure diminishes along the size of the water inflow direction of intaking gradually, the cross sectional dimension of the outer end of funnel water conservancy diversion structure is greater than the cross sectional dimension of the delivery port of inhalant canal, the cross sectional dimension of the inner of funnel water conservancy diversion structure with the cross sectional dimension of the delivery port of inhalant canal is roughly the same.
Preferably, the reset piece is an elastic piece arranged in the hydraulic cylinder, and the water flow of the water inlet channel overcomes the elastic force of the elastic piece to push the piston to move; the hydraulic cylinder is fixedly connected with the body; or the hydraulic cylinder and the body are independently arranged and communicated through a pipeline, and the water inlet end of the pipeline forms a water inlet of the hydraulic cylinder.
Preferably, the air partition is located in a water tank, and the water flow sprayed by the air partition flows into the water tank.
According to another aspect of the present invention, the present invention further provides a drainage device, which includes a drainage valve disposed in a water tank and the hydraulic driving mechanism of any one of the above items, wherein the piston is linked with an actuating assembly of the drainage valve to open the drainage valve for drainage.
Based on the technical scheme, the embodiment of the invention at least has the following beneficial effects:
(1) according to the invention, the air partition communicated with the outside air is arranged between the water outlet of the water inlet channel and the water inlet of the hydraulic cylinder, namely, the water outlet of the water inlet channel is disconnected from the water inlet of the hydraulic cylinder, and no connecting part is arranged between the water outlet of the water inlet channel and the water inlet of the hydraulic cylinder, so that when negative pressure occurs in the water inlet channel, the outside air can enter the water inlet channel through the air partition to prevent siphon generation, and therefore, water flow is prevented from flowing back to the water inlet channel through the hydraulic cylinder to pollute a water source.
(2) The water inlet of the hydraulic cylinder is simultaneously used as the water drainage opening of the hydraulic cylinder, the water inlet of the hydraulic cylinder and the water drainage opening of the hydraulic cylinder are combined into a whole, and the structure is simpler and more compact. And, because the water inlet of pneumatic cylinder passes through the air and cuts off and the outside air intercommunication, consequently, when the water inlet of pneumatic cylinder did not set up the ooff valve, in case inhalant canal stops to supply water to the pneumatic cylinder, rivers in the pneumatic cylinder can be let out by the water inlet of pneumatic cylinder at once under the effect of piston reset force, sluicing speed is faster, thereby make the piston reset also faster, the starting assembly of the drain valve that receives piston control like this also can close the drain valve sooner, the response is faster, sensitive, the drainage control effect is better.
(3) When a switch valve is arranged at the water inlet of the hydraulic cylinder and the water inlet channel is filled with water, the switch valve is in a state of opening the water inlet of the hydraulic cylinder; when the water inlet channel stops water, the switch valve closes the water inlet of the hydraulic cylinder and reopens the water inlet of the hydraulic cylinder after preset time, so that the piston can be maintained at a driving position for preset time by the water pressure in the hydraulic cylinder to enable the drain valve to maintain the opening of the water outlet for preset time, water resources are wasted due to continuous water supply of the water inlet channel, after the switch valve closes the water inlet of the hydraulic cylinder, the hydraulic cylinder is in a pressure maintaining state, the piston can be maintained at the driving position until the water inlet of the hydraulic cylinder is reopened by the switch valve, water in the hydraulic cylinder flows out from the water inlet of the hydraulic cylinder under the pushing of the piston, and therefore the hydraulic cylinder drains water, the piston is reset, and preparation is made for next driving.
(4) The utility model discloses a hydraulic cylinder, including the pneumatic cylinder, the inlet port department is equipped with the check valve through at the pneumatic cylinder, and set up the outlet and be used for the outlet opening closing mechanism of switching the outlet on the pneumatic cylinder, it continuously supplies water and wastes water resource to need not the inlet channel equally, the water inlet of pneumatic cylinder is closed to the check valve behind the inlet channel stagnant water, be in the pressurize state in the pneumatic cylinder, consequently, can maintain the piston in drive position department, the outlet that is up to the pneumatic cylinder is opened by outlet opening closing mechanism, the water in the pneumatic cylinder just flows from the outlet department of pneumatic cylinder under the promotion of piston, thereby make the pneumatic cylinder sluicing, the piston realizes resetting, prepare for the drive next time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a sectional view of a hydraulic drive mechanism of a first embodiment of the invention;
fig. 2 is a perspective view of a hydraulic drive mechanism of a first embodiment of the present invention;
fig. 3 is a partial perspective view of a hydraulic drive mechanism of a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3 and shows a schematic flow of water as the water inlet passage enters water;
FIG. 5 is a cross-sectional view of FIG. 3 and shows the water flow as the hydraulic cylinder drains;
FIG. 6 is a partial cross-sectional view of a hydraulic drive mechanism according to a second embodiment of the present invention with the hydraulic cylinder in a water-in condition;
fig. 7 is a partial sectional view of a hydraulic drive mechanism of a second embodiment of the invention with the hydraulic cylinder in a dwell state;
fig. 8 is a partial cross-sectional view of a hydraulic drive mechanism according to a second embodiment of the present invention with the hydraulic cylinder in a depressurized state;
FIG. 9 is a partial cross-sectional view of a hydraulic drive mechanism according to a third embodiment of the present invention with the hydraulic cylinder in a water-in condition;
fig. 10 is a partial sectional view of a hydraulic drive mechanism of a third embodiment of the invention with the hydraulic cylinder in a pressure maintaining state;
fig. 11 is a partial cross-sectional view of a hydraulic drive mechanism according to a third embodiment of the present invention with the hydraulic cylinder in a pressure relief state;
fig. 12 is an exploded perspective view of a hydraulic drive mechanism according to a third embodiment of the present invention;
fig. 13 is a sectional view of a hydraulic drive mechanism of a fourth embodiment of the invention.
Reference numbers in the figures:
10. a body; 11. a water inlet channel; 111. a water inlet of the water inlet channel; 112. a water outlet of the water inlet channel; 113. a flow guiding straight section;
21. a hydraulic cylinder; 211. a water inlet of the hydraulic cylinder; 22. a piston; 23. a funnel flow guide structure; 24. a water discharge opening;
30. air separation;
40. a one-way valve; 41. a sealing ball support rib;
50. a starting component of the drain valve;
60. a compression spring;
70. a pipeline; 71. a water inlet end of the pipeline;
80. a drain opening/closing mechanism; 81. a floating barrel; 82. a swing rod; 83. and a gasket.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, the hydraulic driving mechanism of the present invention includes a body 10 having a water inlet passage 11 and a hydraulic assembly. Wherein, hydraulic pressure unit includes pneumatic cylinder 21, with pneumatic cylinder 21 matched with piston 22 and be used for providing the piece that resets of restoring force to piston 22, in this embodiment, the piece that resets specifically is the elastic component who locates in pneumatic cylinder 21, and the elastic component adopts compression spring 60, and compression spring 60's both ends are supported respectively between the inboard of pneumatic cylinder 21 and piston 22.
The hydraulic cylinder 21 is supplied with water from the water inlet passage 11, and the piston 22 is moved by the pressure of the water flowing from the water inlet passage 11. An open air partition 30 is formed between the water outlet 112 of the water inlet channel and the water inlet 211 of the hydraulic cylinder, the position of the water outlet 112 of the water inlet channel corresponds to the position of the water inlet 211 of the hydraulic cylinder, and water flow of the water inlet channel 11 flows to the water inlet 211 of the hydraulic cylinder through the air partition 30. Thus, when a negative pressure occurs in the water inlet passage 11, external air can enter the water inlet passage 11 through the air blocking member 30 to prevent siphon generation, thereby preventing water from flowing back into the water inlet passage 11 through the hydraulic cylinder 21 to contaminate the water source.
Preferably, when the water inlet channel 11 stops water, the water in the hydraulic cylinder 21 flows out to the outside through the water inlet 211 of the hydraulic cylinder under the pushing of the piston 22, that is, the water inlet 211 of the hydraulic cylinder is used as the water outlet of the hydraulic cylinder 21 at the same time, and the water inlet of the hydraulic cylinder and the water outlet of the hydraulic cylinder are combined into one, so that the structure is simpler and more compact. And, because the water inlet 211 of pneumatic cylinder passes through air partition 30 and outside air intercommunication, consequently, in case the water inlet channel 11 stops to supply water to the water inlet 211 of pneumatic cylinder, rivers in the pneumatic cylinder 21 can be let out by the water inlet 211 of pneumatic cylinder immediately under the effect of piston 22 reset force, and the sluicing speed is faster, thereby make piston 22 reset also faster, the starting component 50 of the drain valve that receives piston 22 control like this also can close the drain valve sooner, the response is quicker, sensitive, the drainage control effect is better.
When the drain valve itself is not provided with a structure for maintaining the drain opening open (such as a buoyancy device), the piston 22 needs to be kept at the driving position to maintain the opening of the drain opening for a predetermined time, and thus, the water supply to the cylinder 21 through the water inlet passage 11 needs to be continued, so that the water supply is stopped after the piston 22 is kept at the driving position for a predetermined time. When the drain valve is provided with a structure (such as a buoyancy device) for maintaining the opening of the drain opening, the drain valve can keep opening the drain opening for a period of time under the action of the structure of the buoyancy device and the like after the drain opening is driven to be opened by the piston 22, so that the water does not need to be continuously supplied to the water inlet channel 11, and the water supply of the water inlet channel 11 can be stopped after the piston 22 moves to the driving position.
Referring to fig. 1 to 5, in the present embodiment, the hydraulic cylinder 21 and the body 10 are an integral structure, and they may be fixedly connected or integrally formed. The water outlet 112 of the water inlet channel corresponds to the water inlet 211 of the hydraulic cylinder 21, so that the water flow at the water outlet 112 of the water inlet channel can be aligned with the water inlet 211 of the hydraulic cylinder for flowing.
Preferably, in order to increase the water outlet speed of the water outlet 112 of the water inlet channel and increase the water outlet pressure of the water outlet 112 of the water inlet channel, the cross-sectional area S2 of the water outlet 112 of the water inlet channel is smaller than the cross-sectional area S1 of the water inlet 111 of the water inlet channel, so that the water flow pressure of the water inlet channel 11 to the hydraulic cylinder 21 is larger, and the piston 22 can be effectively pushed to move relative to the hydraulic cylinder 21.
Preferably, in this embodiment, the distance L between the water outlet 112 of the water inlet channel and the water inlet 211 of the hydraulic cylinder is greater than or equal to 20 mm.
In order to make the outlet water flow of the outlet 112 of the water inlet channel more concentrated, in this embodiment, the outlet 112 of the water inlet channel is provided with a flow guiding section 113. The flow guide section 113 may be a straight section or a tapered section.
Preferably, the cross-sectional dimension of the outlet 112 of the inlet channel is substantially the same as the cross-sectional dimension of the inlet 211 of the hydraulic cylinder.
When water enters the water inlet passage 11, a small portion of the water flow is sprayed out from the air partition 30, and therefore, it is preferable to dispose the air partition 30 in a water tank so that the water flow sprayed from the air partition 30 can flow into the water tank.
In order to better receive the water flow flowing out from the water outlet 112 of the water inlet channel, in this embodiment, a funnel flow guide structure 23 is arranged at the water inlet 211 of the hydraulic cylinder, the size of the funnel flow guide structure 23 along the water flow direction of the water inlet gradually decreases, the cross sectional size of the outer end of the funnel flow guide structure 23 is larger than that of the water outlet 112 of the water inlet channel, and the cross sectional size of the inner end of the funnel flow guide structure 23 is substantially the same as that of the water outlet 112 of the water inlet channel.
Referring to fig. 1, fig. 2 and fig. 4, fig. 4 is a schematic view illustrating a water flow when water enters the water inlet channel 11, the water flow enters from the water inlet 111 of the water inlet channel and flows out from the water outlet 112 of the water inlet channel, the water flow flowing out from the water outlet 112 of the water inlet channel enters the water inlet 211 of the hydraulic cylinder after passing through the air partition 30, the water flow overcomes the elastic force of the compression spring 60 to drive the piston 22 in the hydraulic cylinder 21 to move downward, and the piston 22 further drives the starting assembly 50 of the drain valve to open the drain valve for draining.
Referring to fig. 1, fig. 2 and fig. 5, fig. 5 is a schematic view showing the water flow when the water inlet channel 11 stops water supply, at this time, the piston 22 immediately extrudes the water in the hydraulic cylinder 21 out of the water inlet 21 of the hydraulic cylinder under the action of the compression spring 60 and discharges the water to the outside through the air partition 30, the piston 22 drives the starting assembly 50 of the drain valve to reset in time, so that the drain valve can immediately stop water discharge when the water inlet channel 11 stops water supply, the response speed is high, and the water discharge amount is accurately and stably controlled.
Referring to fig. 6 to 8, a difference between the hydraulic driving mechanism according to the second preferred embodiment of the present invention and the first preferred embodiment is that in the present embodiment, a check valve 40 is disposed at the water inlet 211 of the hydraulic cylinder, and the check valve 40 is specifically a sealing ball, but may also be in the form of a sealing sheet, and the specific structure of the check valve is not limited thereto. A sealing ball supporting rib 41 is arranged in the position, corresponding to the water inlet 211 of the hydraulic cylinder, in the hydraulic cylinder 21, and the sealing ball 40 is supported on the sealing ball supporting rib 41 under the action of gravity and the action of water flow pressure of the water inlet channel 11. The one-way valve 40 opens the water inlet 211 of the hydraulic cylinder in one way under the action of the water flow of the water inlet channel 11, the hydraulic cylinder 21 is provided with a water outlet 24 communicated with the inner cavity of the hydraulic cylinder 21, the water outlet 24 is provided with a water outlet opening and closing mechanism 80, and the water outlet opening and closing mechanism 80 closes the water outlet 24 in the process of supplying water to the hydraulic cylinder 21 by the water inlet channel 11; when the drain opening-closing mechanism 80 opens the drain opening 24, the water in the hydraulic cylinder 21 is pushed by the piston 22 and flows out through the drain opening 24.
In this embodiment, when the water is stopped in the water inlet channel 11, the check valve 40 (sealing ball) will move upward under the action of the water pressure in the hydraulic cylinder 21 and close the hydraulic cylinder water inlet 211. The drain opening and closing mechanism 80 controls to open the drain opening 24 after the preset time when the water inlet channel 11 stops water, so that the hydraulic cylinder water inlet 211 and the drain opening 24 are both closed in the preset time after the water inlet channel 11 stops water, the hydraulic cylinder 21 is in a pressure maintaining state, and the piston 22 is kept at a driving position in the preset time. The drain valve used in this embodiment is a structure that cannot maintain the drain opening by itself (for example, the buoyancy device is not provided), and therefore the piston 22 needs to be maintained at the driving position so that the drain valve maintains the drain for a predetermined time.
In this embodiment, the drain opening/closing mechanism 80 is an electrically controlled opening/closing valve, specifically, an electromagnetic valve.
In the operation of this embodiment, as shown in fig. 6, at this time, the hydraulic cylinder 21 of the hydraulic driving mechanism is in the water inlet state, the check valve 40 is supported on the sealing ball support rib 41 under the action of its own gravity and the water flow pressure of the water inlet channel 11, and the water inlet 211 of the hydraulic cylinder is kept in the open state.
As shown in fig. 7, at this time, the hydraulic cylinder 21 of the hydraulic drive mechanism is in the pressure maintaining state, the water inlet passage 11 is stopped, the check valve 40 moves upward by the water pressure in the hydraulic cylinder 21 and closes the water inlet 211 of the hydraulic cylinder, and the drain opening 24 is not yet opened by the drain opening/closing mechanism 80 at this time.
As shown in fig. 8, at this time, the hydraulic cylinder 21 of the hydraulic drive mechanism is in a pressure relief state, and after the state of fig. 7 is maintained for a predetermined time, the drain opening/closing mechanism 80 opens the drain opening 24, the water in the hydraulic cylinder 21 flows out from the drain opening 24 by the action of the piston 22, the piston 22 is reset, the check valve 40 loses the hydraulic pressure action in the hydraulic cylinder 21, falls and resets under the action of gravity, and opens the water inlet 211 of the hydraulic cylinder again.
Referring to fig. 9 to 12, the hydraulic driving mechanism according to the third preferred embodiment of the present invention is different from the second preferred embodiment in that, in the present embodiment, the drain opening/closing mechanism 80 adopts a buoyancy control valve, the buoyancy control valve includes a float 81, a swing rod 82 linked with the float 81, and a gasket 83 disposed on the swing rod 82, the float 81 moves up and down along with the water level of the water tank, and the swing rod 82 drives the gasket 83 to open or close the drain opening 24.
In operation, as shown in fig. 9, at this time, the hydraulic cylinder 21 of the hydraulic driving mechanism is in a water inlet state, the check valve 40 is supported on the sealing ball support rib 41 under the action of water flow pressure, and the water inlet 211 of the hydraulic cylinder is kept in an open state.
As shown in fig. 10, at this time, the hydraulic cylinder 21 of the hydraulic drive mechanism is in the pressure maintaining state, the water inlet passage 11 is stopped, the check valve 40 moves upward by the water pressure in the hydraulic cylinder 21 and closes the water inlet 211 of the hydraulic cylinder, the drain opening 24 is not yet opened by the drain opening/closing mechanism 80 at this time, and the float 81 of the drain opening/closing mechanism 80 is kept in the floating state. The piston 22 remains in the actuated position so that the drain valve remains drained.
As shown in fig. 11, with the continuous drainage of the drain valve, when the water level in the water tank falls to the buoyancy of the floating bucket 81 and is insufficient, the floating bucket 81 falls along with the water level of the water tank, the floating bucket 81 drives the swing rod 82 to swing, so that the sealing gasket 83 opens the drain opening 24, the water flow in the hydraulic cylinder 21 flows out from the drain opening 24 under the action of the piston 22, the piston 22 resets, the check valve 40 loses the hydraulic pressure effect in the hydraulic cylinder 21, and the check valve falls to reset and opens the water inlet 211 of the hydraulic cylinder under the action of gravity. At this time, the hydraulic cylinder 21 of the hydraulic drive mechanism is in a pressure-relieved state.
Of course, in another embodiment, the drain opening/closing mechanism 80 may be a mechanical opening/closing valve or the like, and the mechanical opening/closing valve may be provided with a time-delay structure, so that the mechanical opening/closing valve can open the drain opening 24 after a predetermined time when the water is stopped in the water inlet passage by the time-delay structure, and the mechanical opening/closing valve may be configured to be capable of realizing time delay by a spring, a damping oil or the like as in the conventional art.
In other embodiments, a switch valve (not shown) may be provided at the water inlet 211 of the hydraulic cylinder, and when the water inlet channel 11 is filled with water, the switch valve is in a state of opening the water inlet 211 of the hydraulic cylinder, so that water in the water inlet channel can enter the hydraulic cylinder 21 through the water inlet 211 of the hydraulic cylinder to drive the piston 22 to move; when the water inlet channel 11 stops water, the switch valve closes the water inlet 211 of the hydraulic cylinder, and reopens the water inlet 211 of the hydraulic cylinder after a preset time, and in the preset time, the hydraulic cylinder 21 is in a pressure maintaining state, so that the piston 22 is kept at a driving position, and further the drain valve is controlled to be kept in an opening state for a preset time, and after the water inlet 211 of the hydraulic cylinder is reopened by the switch valve, water in the hydraulic cylinder 21 flows out through the water inlet 211 of the hydraulic cylinder under the action of the piston 22. The switch valve can be an electromagnetic valve, and the opening and closing time of the electromagnetic valve is controlled by a program; or, the switch valve may also be a mechanical valve with a delay structure, the mechanical switch valve is reset to an open state after being closed within a delay preset time under the action of the delay structure, and the mechanical switch valve with the delay structure may adopt a structure commonly used in the prior art, for example, a structure commonly used for realizing delay through a clockwork spring or damping oil.
Referring to fig. 13, a difference between the hydraulic driving mechanism of the fourth preferred embodiment of the present invention and the first preferred embodiment is that in this embodiment, the hydraulic cylinder 21 and the body 10 are independently disposed and communicated with each other through a pipeline 70, and a water inlet end 71 of the pipeline 70 forms a water inlet 211 of the hydraulic cylinder.
According to another aspect of the present invention, there is also provided a drain apparatus comprising a drain valve (not shown) disposed in a tank (not shown) and the hydraulic drive mechanism of any one of the above, wherein the piston 22 is actuated by the actuating assembly 50 of the drain valve to open the drain valve to drain water. Referring to fig. 2, in the present embodiment, the starting component 50 of the drain valve specifically adopts a steel wire rope component.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (13)
1. Hydraulic drive mechanism, including the body and a hydraulic assembly that have inhalant canal, hydraulic assembly include the pneumatic cylinder, with pneumatic cylinder matched with piston and be used for right the piston provides the piece that resets of power that resets, inhalant canal is right the pneumatic cylinder supplies water, inhalant canal's rivers pressure promotes the piston motion, its characterized in that, inhalant canal's delivery port with form open air between the water inlet of pneumatic cylinder and cut off, inhalant canal's delivery port with the water inlet position of pneumatic cylinder is corresponding, inhalant canal's rivers via the air cuts off the back and flows extremely the water inlet of pneumatic cylinder.
2. The hydraulic drive mechanism as claimed in claim 1, wherein when the water inlet passage is blocked, the water in the hydraulic cylinder flows out to the outside through the water inlet of the hydraulic cylinder under the pushing of the piston.
3. The hydraulic driving mechanism according to claim 1, wherein a switch valve is provided at the water inlet of the hydraulic cylinder, and when the water inlet channel is filled with water, the switch valve is in a state of opening the water inlet of the hydraulic cylinder; when the water inlet channel stops water, the switch valve closes the water inlet of the hydraulic cylinder and reopens the water inlet of the hydraulic cylinder after preset time.
4. The hydraulic driving mechanism according to claim 1, wherein a check valve is provided at a water inlet of the hydraulic cylinder, the check valve opens the water inlet of the hydraulic cylinder in a single direction under the action of water flow of the water inlet passage, a water outlet communicated with an inner cavity of the hydraulic cylinder is provided on the hydraulic cylinder, a water outlet opening and closing mechanism is provided at the water outlet, and the water outlet opening and closing mechanism closes the water outlet during the water supply of the hydraulic cylinder by the water inlet passage; when the drain opening/closing mechanism opens the drain opening, the water in the hydraulic cylinder flows out through the drain opening by being pushed by the piston.
5. The hydraulic drive mechanism according to claim 4, wherein the drain opening/closing mechanism is an electrically controlled opening/closing valve, a mechanical opening/closing valve, or a buoyancy control valve.
6. The hydraulic drive mechanism as claimed in claim 1, wherein the cross-sectional area S2 of the outlet of the inlet passage is smaller than the cross-sectional area S1 of the inlet passage.
7. The hydraulic drive mechanism as claimed in claim 1, wherein the distance L between the water outlet of the water inlet channel and the water inlet of the hydraulic cylinder is greater than or equal to 20 mm.
8. The hydraulic drive mechanism as claimed in claim 1, wherein the water outlet of the water inlet passage is provided with a flow guide section.
9. The hydraulic drive mechanism of claim 1, wherein the cross-sectional dimension of the outlet of the inlet passage is substantially the same as the cross-sectional dimension of the inlet of the hydraulic cylinder.
10. The hydraulic drive mechanism as claimed in claim 1, wherein a funnel diversion structure is provided at the water inlet of the hydraulic cylinder, the funnel diversion structure gradually decreases in size along the water inlet flow direction, the cross-sectional size of the outer end of the funnel diversion structure is larger than that of the water outlet of the water inlet passage, and the cross-sectional size of the inner end of the funnel diversion structure is substantially the same as that of the water outlet of the water inlet passage.
11. The hydraulic driving mechanism according to claim 1, wherein the reset member is an elastic member provided in the hydraulic cylinder, and the water flow of the water inlet passage pushes the piston to move against the elastic force of the elastic member; the hydraulic cylinder is fixedly connected with the body; or the hydraulic cylinder and the body are independently arranged and communicated through a pipeline, and the water inlet end of the pipeline forms a water inlet of the hydraulic cylinder.
12. The hydraulic drive of claim 1, wherein the air partition is located in a water tank into which water splashed by the air partition flows.
13. A drain apparatus comprising a drain valve disposed in a tank, and further comprising the hydraulic drive mechanism of any one of claims 1 to 12, wherein the piston is actuated by a linkage with an actuation assembly of the drain valve to open the drain valve for draining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586919.9A CN111608233A (en) | 2020-06-24 | 2020-06-24 | Hydraulic driving mechanism and drainage device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586919.9A CN111608233A (en) | 2020-06-24 | 2020-06-24 | Hydraulic driving mechanism and drainage device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111608233A true CN111608233A (en) | 2020-09-01 |
Family
ID=72199101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010586919.9A Pending CN111608233A (en) | 2020-06-24 | 2020-06-24 | Hydraulic driving mechanism and drainage device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111608233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227155A1 (en) * | 2021-04-30 | 2022-11-03 | 厦门瑞尔特卫浴科技股份有限公司 | Anti-siphon assembly, drainage device, and toilet device |
-
2020
- 2020-06-24 CN CN202010586919.9A patent/CN111608233A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227155A1 (en) * | 2021-04-30 | 2022-11-03 | 厦门瑞尔特卫浴科技股份有限公司 | Anti-siphon assembly, drainage device, and toilet device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3967908B1 (en) | Vacuum operated valve | |
| CN106836407B (en) | Toilet bowl flushing system with switching mechanism | |
| EP1323874A1 (en) | Faucet for filling tanks | |
| CN102844502A (en) | Leak detection on flush valve | |
| CN111608233A (en) | Hydraulic driving mechanism and drainage device with same | |
| CN113775007A (en) | Hydraulic drive structure and toilet device with same | |
| CA2932337C (en) | Minor water leak prevention apparatus for water inlet valve | |
| CA2933648C (en) | Major water leak prevention apparatus for water inlet valve | |
| EP3428352A1 (en) | Low water level toilet | |
| CN110409575B (en) | Toilet flushing mechanism and flushing control method thereof | |
| CN108005188B (en) | Low water tank toilet bowl | |
| CN212294914U (en) | Hydraulic driving mechanism and drainage device with same | |
| CN107794985B (en) | Moisturizing adjusting device | |
| WO2022242007A1 (en) | Buoy device and method for controlling buoy to fall in timely manner, and water intake valve and drainage valve | |
| CN108661138A (en) | A kind of impulse electromagnetic valve jettison gear | |
| CN210263268U (en) | Water inlet valve for toilet cistern | |
| CN216195197U (en) | Hydraulic drive structure and toilet device with same | |
| CN217537213U (en) | Drainage device of closestool | |
| CN215487810U (en) | Novel time delay switching goes out water device and has its closestool | |
| CN208137055U (en) | A kind of delay discharge structure of drain valve | |
| EP1790782A1 (en) | Water level control valve comprising a paramagnetic shutter | |
| CN215483375U (en) | Energy storage water supply mechanism and have its closestool | |
| CN215806511U (en) | Integral anti-siphon flush valve | |
| CN214738518U (en) | Water inlet valve with anti-siphon structure and toilet bowl | |
| EP1154085B1 (en) | Intermittently operating flushing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |