CN107327619B - Power-assisted valve structure and opening and closing control method - Google Patents
Power-assisted valve structure and opening and closing control method Download PDFInfo
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- CN107327619B CN107327619B CN201710577355.0A CN201710577355A CN107327619B CN 107327619 B CN107327619 B CN 107327619B CN 201710577355 A CN201710577355 A CN 201710577355A CN 107327619 B CN107327619 B CN 107327619B
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- valve
- cavity
- pressure
- valve core
- water inlet
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- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000010985 leather Substances 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanically-Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The application relates to a booster valve structure and a control method for opening and closing, wherein the valve structure comprises a three-way valve body, a valve cover is covered at one through port, a valve core with a cavity inside is arranged at the inner side of the valve cover through an elastic leather cup, and a pressure cavity is formed by the elastic leather cup, the valve core and the cavity surrounded by the valve cover; the other one of the three-way valve is a water inlet cavity, and the inner cavity of the valve body except the water inlet cavity and the pressure cavity is a water outlet cavity; the valve core is provided with a water inlet hole which is communicated with the water inlet cavity, a water outlet hole which is communicated with the water outlet cavity, a valve which can seal the water outlet hole is arranged at the water outlet hole, the valve is controlled to lift by a driving mechanism which is connected outside the valve body, and the valve can be driven to lift when the valve is lifted. The method for controlling the valve core with the water inlet hole and the water outlet hole by the buffer spring and the valve enables the driving power of the valve to be greatly reduced, and the valve has all the advantages of an electric valve and an electromagnetic valve. So that the method has extremely high application value.
Description
Technical Field
The application relates to a power-assisted valve structure used in an electric valve and a control method for opening and closing the valve structure.
Background
The existing pipeline valve is automated by adopting an electric valve and an electromagnetic valve, and the electric valve basically adopts a technology that an actuator directly drives a valve core to control the valve to open and close, so that the defects of large control moment and large power consumption of the electric actuator exist.
The solenoid valve is driven by water pressure to control the valve to open and close, so that the valve has great pressure loss, can not work under low water pressure, and has the problem that a control flow passage is easy to block.
Because the problems seriously affect the automatic application of the pipeline valve, a valve core control structure and a valve core control mode with low power consumption, reliable driving and high adaptability need to be designed.
The following two types of electrically operated valves exist in the corresponding prior art:
1. the invention patent No. 200910113225.7 'power-assisted electric regulating valve' discloses a structure which comprises a valve body, a valve seat, a valve core and a valve cover, wherein the valve plug is arranged at the bottom of the valve core, the upper part is provided with an annular corrugated rubber cup, a guide pipe communicated with a valve water inlet is arranged on the side surface of the valve seat and is communicated with a sealing cavity formed by the valve cover, the rubber cup and the valve core, a water outlet pipe is communicated with the outside of the valve body through the sealing cavity, and an electric or electromagnetic starting and closing device is arranged to control the opening and closing of the water inlet pipe and the water outlet pipe, so that the opening and closing of the valve are controlled, the problem of automatic control of micro-electricity consumption is solved, the zero-power self-locking function of the valve at any opening degree is realized, the water loss during overcurrent is reduced, the problem of automatic control of opening and closing of the valve is solved, the flow is controlled, the valve is prevented from being privately opened, the structure is reasonable, the design is scientific, the use is convenient, the valve can be used for the water pipe, and can be applicable to other liquid fluid or gas. But the structure and the control flow passage are complex, and the control flow passage has high failure rate and is extremely easy to be blocked. And the screw is directly driven, so that the requirement on the strength of the screw is extremely high, and the screw is extremely easy to damage when the water pressure fluctuates and the water hammer impacts the valve core.
2. The invention application No. 201410376143.2 discloses a pressure balance type electric valve which comprises a valve body, a valve cover, a driving mechanism, a water seal, a screw rod, a valve core leather cup and a valve core, wherein the valve body is provided with a fluid inlet and a fluid outlet, and the valve core is provided with a fluid channel. The valve core, the valve core leather cup, the water seal, the screw rod and the valve cover form a relatively closed balance cavity together, and the balance cavity is communicated with the fluid inlet only through a flow passage of the valve core. The screw rod is connected with the driving mechanism, and the driving mechanism can drive the valve core to do linear motion through the screw rod. The valve core can block the fluid movement between the fluid inlet and the fluid outlet through downward movement, so that the valve can be opened and closed. Because of the existence of the balance cavity, the pressure of the fluid to the valve core is balanced, so that the movement resistance of the valve core is reduced. This reduces the torque and energy consumption required to open and close the valve. The invention has simple and compact structure, small volume, high transmission efficiency, accurate control and extremely strong reliability. However, the screw has extremely high requirements on the strength of the screw, and the screw is extremely easy to damage when the water pressure fluctuates and the water hammer impacts the valve core.
Disclosure of Invention
The power-assisted valve structure has the advantages of no valve pressure loss, reliable valve opening and closing, low control power consumption and capability of adjusting flow; based on the object, another object of the present application is to provide a method for controlling the opening and closing of a booster valve structure.
The object of the present application is achieved in that: the booster valve structure includes three-way valve body, one through port with valve cover, valve core with cavity inside the valve cover and with elastic cup, and pressure cavity formed by the elastic cup, the valve core and the valve cover; the other one of the three-way valve is a water inlet cavity, and the inner cavity of the valve body except the water inlet cavity and the pressure cavity is a water outlet cavity; the valve core is provided with a water inlet hole which is communicated with the water inlet cavity, a water outlet hole which is communicated with the water outlet cavity, a valve which can seal the water outlet hole is arranged at the water outlet hole, the valve is controlled to lift by a driving mechanism which is connected outside the valve body, and the valve can be driven to lift when the valve is lifted.
A travel gap is reserved between the drain hole and the upper port of the valve core, and the valve is arranged in the travel gap.
The power output end of the driving mechanism is connected with a screw rod extending into the pressure cavity, a pressing plate is fixedly connected on the screw rod in a rotating mode, a buffer spring is arranged at the lower end of the pressing plate, and the lower end of the buffer spring is connected with the valve.
The power output end of the driving mechanism is connected with a screw rod extending into the pressure cavity C, the screw rod penetrates through the valve and is rotationally connected and fixed with a pressing plate arranged below the valve, and a buffer spring is arranged on the screw rod between the pressing plate and the valve.
The valve is provided with a valve body for blocking the drain hole, and the valve body is a flat sheet.
Filter screens are arranged in the water inlet holes and the water outlet holes.
The control method of the power-assisted valve structure opening and closing is that a valve arranged in the valve core actively drives the valve core to ascend or descend; the valve is used for blocking or communicating the pressure cavity and the water outlet cavity, so that the pressure in the pressure cavity is regulated, and the pressure difference between the upper end and the lower end of the valve core, namely the pressure difference between the water inlet cavity and the pressure cavity, is regulated, and the position of the valve core in the valve body is regulated in an auxiliary mode through the pressure difference, so that the valve is opened or closed finally.
In the process of opening or closing the valve, the valve is driven to ascend or descend through the driving mechanism to open or block the drain hole, the pressure in the pressure cavity is regulated through the communication or blocking with the water outlet cavity, then the valve is driven through the driving mechanism, the valve core is driven to ascend or descend, meanwhile, the position of the valve core in the valve body is regulated in an auxiliary mode through the pressure difference between the water inlet cavity and the pressure cavity, and finally the valve opening or closing is completed; in the opening or closing process of the valve, the rotation degree of the screw rod is controlled through the driving mechanism, the rising or falling distance of the valve is adjusted, and the rising or falling distance of the valve core assembly is further limited through the valve, so that the integral opening control of the valve is completed; when the valve limits the valve core assembly, the valve core assembly is under the pressure of water in the valve body, and self-balance is achieved in the valve body.
Due to the fact that the technical scheme is adopted, the valve core is controlled by the buffer spring and the valve to have the special structure of the valve core with the water inlet hole and the water outlet hole, driving power of the valve is greatly reduced, all advantages of the electric valve and the electromagnetic valve are achieved, and meanwhile the valve opening adjusting function is achieved, so that the valve has extremely high application value.
Description of the drawings: the technical scheme of the application is given by the following figures and examples:
FIG. 1 is a schematic structural view of the present application;
fig. 2 is a schematic view of the structure of the present application when the pressing plate is placed under the shutter.
Legend: A. a water outlet cavity, a water inlet cavity, a pressure cavity, a valve body, a valve cover, a valve core, a valve, a screw rod, a pressure plate, a buffer spring and a buffer spring, 8, an elastic leather cup, 9, a driving mechanism, 10, a water inlet hole, 11, a water drain hole, 12, a sealing ring, 13, a sealing device, 14 and a filter screen.
The specific embodiment is as follows:
the present application is not limited by the following examples, and specific embodiments may be determined according to technical solutions and practical situations of the present application.
Examples: as shown in fig. 1, the booster valve structure comprises a three-way valve body 1, wherein a valve cover 2 is covered at a through port, a valve core 3 with a hollow cavity is arranged at the inner side of the valve cover 2 through an elastic leather cup 8, and a pressure cavity C is formed by the elastic leather cup 8, the valve core 3 and the hollow cavity surrounded by the valve cover 2; the other one of the tee joint is a water inlet cavity B, and the cavity in the valve body 1 except the water inlet cavity B and the pressure cavity C is a water outlet cavity A; the upper port of the valve core 3 is semi-closed, a water inlet hole 10 communicated with a water inlet cavity B is formed in the valve core 3, a water outlet hole 11 communicated with a water outlet cavity A is formed in the valve core 3, a valve 4 capable of blocking the water outlet hole 11 is arranged at the water outlet hole 11, the valve 4 is controlled to lift through a driving mechanism 9 connected to the outside of the valve body 1, and the valve core 3 can be driven to lift when the valve 4 is lifted.
A travel gap is reserved between the drain hole 11 and the upper port of the valve core 3, and the valve 4 is arranged in the travel gap.
The valve 4 can block the drain hole 11 on the valve core 3 when being positioned at the lower end of the travel gap, and when the valve 4 blocks the drain hole 11 on the valve core 3, the communication between the water outlet cavity A and the pressure cavity C is blocked; when the valve 4 continues to move downwards, the valve core 3 can be pressed to move downwards until the valve core 3 blocks the communication between the water inlet cavity B and the water outlet cavity A, and the valve is closed.
When the valve 4 is positioned at the upper end of the travel gap, the drain hole 11 on the valve core 3 is opened, and the water outlet cavity A is communicated with the pressure cavity C; when the valve 4 continues to move upwards, the valve core can be pulled to move upwards, the water inlet cavity B is communicated with the water outlet cavity A, and the valve is opened.
As shown in fig. 1, the driving mechanism 9 is a prior art, which may be a motor, a power output end of the driving mechanism 9 is connected with a screw rod 5 extending into the pressure cavity C, a pressing plate 6 is rotatably sleeved on the screw rod 5, a buffer spring 7 is mounted at the lower end of the pressing plate 6, and the lower end of the buffer spring 7 is connected with the valve 4.
As shown in fig. 2, the power output end of the driving mechanism 9 is connected with a screw rod 5 extending into the pressure cavity C, the screw rod 5 passes through the valve 4 and is screwed with a pressing plate 6 arranged below the valve 4, and a buffer spring 7 is arranged on the screw rod 5 between the pressing plate 6 and the valve 4.
Through the mode that the two lead screws 5 drive the valve, the power acting on the valve 4 can be effectively reduced through the buffer spring 7, and the lead screws 5 are well protected.
The shutter 4 has a shutter body that closes the drain hole 11, and the shutter body is a flat sheet.
Filter screens 14 are arranged in the water inlet holes 10 and the water outlet holes 11.
A sealing ring 12 is arranged at the inner port of the drain hole 11, and the sealing ring 12 can be matched and sealed with the valve 4.
A sealing device 13 is arranged at the connection of the screw 5 and the valve body 1, wherein the sealing device 13 can be a sealing ring.
The working process and principle of the application are as follows: when the valve is in a closed state, the valve 4 blocks the drain hole 11 on the valve core assembly 3, and the pressure difference between the pressure cavity C and the water inlet cavity B applied to the valve core assembly 3 is downward pressure; the water inlet cavity B and the water outlet cavity A are blocked by the valve core component 3, and the valve is closed.
Valve from closed to open: firstly, the driving mechanism 9 drives the screw rod 5 to rotate, and the pressing plate 6 moves upwards along with the screw rod; the pressing plate 6 stretches the buffer spring 7, and the lower end of the buffer spring 7 pulls the valve 4 to move upwards together; because of the existence of the travel clearance between the valve 4 and the valve core assembly 3, the valve 4 firstly opens the drain hole 11 on the valve core assembly 3, and the liquid in the pressure cavity C is discharged to the water outlet cavity A through the drain hole 11; the pressure of the pressure cavity C is reduced, and the pressure difference applied to the valve core assembly 3 by the pressure cavity C and the water inlet cavity B is converted from downward pressure to upward pressure; the valve 4 continues to pull the valve core assembly 3 upwards, and the valve is opened.
The valve enters the closing process from opening: firstly, the driving mechanism 9 drives the screw rod 5 to rotate, and the pressing plate 6 moves linearly downwards along with the screw rod; the pressing plate 6 presses the buffer spring 7, and the buffer spring 7 pushes the valve 4 to move downwards together; because of the existence of a travel gap between the valve 4 and the valve core assembly 3, the lower end of the buffer spring 7 pushes the valve 4 to block the drain hole 11 on the valve core assembly 3 in advance, and the pressure of the pressure cavity C is increased; the pressure difference applied to the valve core assembly 3 by the pressure cavity C and the water inlet cavity B is converted from upward pressure to downward pressure; the valve 4 continues to move downwards to push the valve core assembly 3 downwards, and the valve is closed.
A control method for opening and closing a booster valve structure comprises the following steps: the valve core 3 is actively driven to ascend or descend by a valve 4 arranged in the valve core 3; the valve 4 is used for blocking or communicating the pressure cavity C and the water outlet cavity A, so that the pressure in the pressure cavity C is regulated, and the pressure difference between the upper end and the lower end of the valve core 3, namely the pressure difference between the water inlet cavity B and the pressure cavity C, is regulated, and the position of the valve core 3 in the valve body 1 is regulated in an auxiliary mode through the pressure difference, so that the valve is opened or closed finally.
In the process of opening or closing the valve, the driving mechanism 9 drives the valve 4 to ascend or descend to open or block the water drain hole 11, the pressure in the pressure cavity C is regulated firstly through the communication or blocking with the water outlet cavity A, then the driving mechanism 9 drives the valve 4 and drives the valve core 3 to ascend or descend, and meanwhile, the position of the valve core 3 in the valve body 1 is regulated in an auxiliary mode through the pressure difference between the water inlet cavity B and the pressure cavity C, and finally the valve opening or closing is completed.
In the valve opening or closing process, the rotation degree of the screw rod 5 is controlled through the driving mechanism 9, the ascending or descending distance of the valve 4 is adjusted, and the ascending or descending distance of the valve core assembly 3 is further limited through the valve 4, so that the integral opening control of the valve is completed. When the valve 4 limits the valve core assembly 3, the valve core assembly 3 is under the pressure of water in the valve body 1, and self-balance is achieved in the valve body 1. The valve opening is regulated, which is an important function different from the prior art, and the purpose of low-power consumption flow regulation is achieved.
The technical characteristics form the optimal embodiment of the application, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the needs of different situations.
Claims (7)
1. A booster valve structure comprises a three-way valve body, wherein a valve cover is covered at a through port, a valve core with a cavity is arranged at the inner side of the valve cover through an elastic leather cup, and a pressure cavity is formed by the elastic leather cup, the valve core and the cavity surrounded by the valve cover; the other one of the tee joint is a water inlet cavity, and the inner cavity of the valve body except the water inlet cavity and the pressure cavity is a water outlet cavity, and is characterized in that: the valve core is semi-closed at the upper port, a water inlet hole used for being communicated with the water inlet cavity is formed in the valve core, a water drain hole used for being communicated with the water outlet cavity is formed in the water drain hole, a valve capable of blocking the water drain hole is arranged at the water drain hole, the valve is controlled to lift through a driving mechanism connected outside the valve body, a travel gap is reserved between the water drain hole and the upper port of the valve core, the valve is arranged in the travel gap, and the valve can be driven to lift when being lifted.
2. The booster valve structure of claim 1, wherein: the valve is provided with a valve body for blocking the drain hole, and the valve body is a flat sheet.
3. A booster valve structure as claimed in claim 1 or claim 2, wherein: the power output end of the driving mechanism is connected with a screw rod extending into the pressure cavity, a pressing plate is fixedly connected on the screw rod in a rotating mode, a buffer spring is arranged at the lower end of the pressing plate, and the lower end of the buffer spring is connected with the valve.
4. A booster valve structure as claimed in claim 1 or claim 2, wherein: the power output end of the driving mechanism is connected with a screw rod extending into the pressure cavity, the screw rod penetrates through the valve and is arranged below the valve, a pressing plate positioned in the valve core is connected with the valve in a rotating mode, and a buffer spring is arranged on the screw rod between the pressing plate and the valve.
5. A booster valve structure as claimed in claim 1 or claim 2, wherein: filter screens are arranged in the water inlet holes and the water outlet holes.
6. A method for controlling the opening and closing of a booster valve structure as defined in claim 3 or 4, wherein: the valve core is actively driven to ascend or descend by a valve arranged in the valve core; the valve is used for blocking or communicating the pressure cavity and the water outlet cavity, so that the pressure in the pressure cavity is regulated, and the pressure difference between the upper end and the lower end of the valve core, namely the pressure difference between the water inlet cavity and the pressure cavity, is regulated, and the position of the valve core in the valve body is regulated in an auxiliary mode through the pressure difference, so that the valve is opened or closed finally.
7. The method for controlling the opening and closing of a booster valve structure according to claim 6, wherein: in the process of opening or closing the valve, the valve is driven to ascend or descend through the driving mechanism to open or block the drain hole, the pressure in the pressure cavity is regulated through the communication or blocking with the water outlet cavity, then the valve is driven through the driving mechanism, the valve core is driven to ascend or descend, meanwhile, the position of the valve core in the valve body is regulated in an auxiliary mode through the pressure difference between the water inlet cavity and the pressure cavity, and finally the valve opening or closing is completed; in the opening or closing process of the valve, the rotation degree of the screw rod is controlled through the driving mechanism, the rising or falling distance of the valve is adjusted, and the rising or falling distance of the valve core assembly is further limited through the valve, so that the integral opening control of the valve is completed; when the valve limits the valve core assembly, the valve core assembly is under the pressure of water in the valve body, and self-balance is achieved in the valve body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038989 | 2017-01-19 | ||
| CN2017100389899 | 2017-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327619A CN107327619A (en) | 2017-11-07 |
| CN107327619B true CN107327619B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710577355.0A Active CN107327619B (en) | 2017-01-19 | 2017-07-14 | Power-assisted valve structure and opening and closing control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327619B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1254348A (en) * | 1968-04-27 | 1971-11-17 | Danfoss As | Thermostatically controlled expansion valve for refrigerating equipment |
| CN2272076Y (en) * | 1996-06-03 | 1998-01-07 | 朱远才 | Multi-functional time-delay self-colsing valve |
| CN2349422Y (en) * | 1998-04-08 | 1999-11-17 | 程礼贤 | Magnetic-controlled check valve |
| CN2534433Y (en) * | 2002-04-15 | 2003-02-05 | 朱建文 | Internal dynamic valve |
| CN2651544Y (en) * | 2003-11-18 | 2004-10-27 | 孙恩新 | Electromagnetic control guiding valves |
| CN200946667Y (en) * | 2006-08-08 | 2007-09-12 | 刘庆荣 | Intelligent water meter control valve |
| WO2008141544A1 (en) * | 2007-05-24 | 2008-11-27 | Zuoyi Wang | A self-balancing type self-compensation sealed valve |
| CN201293139Y (en) * | 2008-11-28 | 2009-08-19 | 遵义群建塑胶制品有限公司 | Micro-electric control electromagnetic valve |
| CN103174868A (en) * | 2013-02-06 | 2013-06-26 | 张凡 | Diaphragm valve with adjustable pressure and adjustable flow range |
| CN203098883U (en) * | 2013-02-06 | 2013-07-31 | 张凡 | Diaphragm pilot valve with contact type valve element linear displacement detection device |
| JP2014012032A (en) * | 2012-07-03 | 2014-01-23 | Senju Sprinkler Kk | Pre-operation type flowing water detecting device |
| CN103591313A (en) * | 2013-10-25 | 2014-02-19 | 安徽机电职业技术学院 | Cut-off-type valve with pilot valve |
| CN104500812A (en) * | 2014-12-12 | 2015-04-08 | 刘庆荣 | Electric low-power-consumption valve |
| CN105299279A (en) * | 2014-08-02 | 2016-02-03 | 王大海 | Pressure balance type electric valve |
| CN207145740U (en) * | 2017-01-19 | 2018-03-27 | 王大海 | Booster type valve mechanism |
-
2017
- 2017-07-14 CN CN201710577355.0A patent/CN107327619B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1254348A (en) * | 1968-04-27 | 1971-11-17 | Danfoss As | Thermostatically controlled expansion valve for refrigerating equipment |
| CN2272076Y (en) * | 1996-06-03 | 1998-01-07 | 朱远才 | Multi-functional time-delay self-colsing valve |
| CN2349422Y (en) * | 1998-04-08 | 1999-11-17 | 程礼贤 | Magnetic-controlled check valve |
| CN2534433Y (en) * | 2002-04-15 | 2003-02-05 | 朱建文 | Internal dynamic valve |
| CN2651544Y (en) * | 2003-11-18 | 2004-10-27 | 孙恩新 | Electromagnetic control guiding valves |
| CN200946667Y (en) * | 2006-08-08 | 2007-09-12 | 刘庆荣 | Intelligent water meter control valve |
| WO2008141544A1 (en) * | 2007-05-24 | 2008-11-27 | Zuoyi Wang | A self-balancing type self-compensation sealed valve |
| CN201293139Y (en) * | 2008-11-28 | 2009-08-19 | 遵义群建塑胶制品有限公司 | Micro-electric control electromagnetic valve |
| JP2014012032A (en) * | 2012-07-03 | 2014-01-23 | Senju Sprinkler Kk | Pre-operation type flowing water detecting device |
| CN103174868A (en) * | 2013-02-06 | 2013-06-26 | 张凡 | Diaphragm valve with adjustable pressure and adjustable flow range |
| CN203098883U (en) * | 2013-02-06 | 2013-07-31 | 张凡 | Diaphragm pilot valve with contact type valve element linear displacement detection device |
| CN103591313A (en) * | 2013-10-25 | 2014-02-19 | 安徽机电职业技术学院 | Cut-off-type valve with pilot valve |
| CN105299279A (en) * | 2014-08-02 | 2016-02-03 | 王大海 | Pressure balance type electric valve |
| CN104500812A (en) * | 2014-12-12 | 2015-04-08 | 刘庆荣 | Electric low-power-consumption valve |
| CN207145740U (en) * | 2017-01-19 | 2018-03-27 | 王大海 | Booster type valve mechanism |
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| Publication number | Publication date |
|---|---|
| CN107327619A (en) | 2017-11-07 |
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