CN110985745A - Safety hydraulic valve for hydraulic pneumatic control system - Google Patents
Safety hydraulic valve for hydraulic pneumatic control system Download PDFInfo
- Publication number
- CN110985745A CN110985745A CN201911420692.4A CN201911420692A CN110985745A CN 110985745 A CN110985745 A CN 110985745A CN 201911420692 A CN201911420692 A CN 201911420692A CN 110985745 A CN110985745 A CN 110985745A
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- Prior art keywords
- fixedly connected
- cavity
- pressure
- hydraulic
- safety
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- 238000004804 winding Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 50
- 230000000670 limiting effect Effects 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
-
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
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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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
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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
- F16K31/44—Mechanical actuating means
-
- 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
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a safety hydraulic valve, belonging to the technical field of safety protection, and the safety hydraulic valve for a hydraulic pneumatic control system comprises an electromagnetic valve cavity, wherein one side of the outer surface of the electromagnetic valve cavity is fixedly connected with a pressure measuring cavity, a piston is arranged in the pressure measuring cavity, the outer surface of one side of the piston is fixedly connected with a film, one end of the piston, which is far away from the film, is fixedly connected with a piston rod, the upper end of the pressure measuring cavity is fixedly connected with a pressure guide pipe, an electromagnetic control cavity is fixedly connected below the pressure measuring cavity, two permanent magnets are arranged in the electromagnetic control cavity, and a coil winding is arranged between the two permanent magnets in a sliding manner, so that the reliability of the safety valve can be improved. The maintenance cost of the safety valve is reduced.
Description
Technical Field
The invention relates to a safety hydraulic valve, in particular to a safety hydraulic valve for a hydraulic pneumatic control system.
Background
The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation.
The existing safety valve usually has only one safety guarantee, the mechanical safety valve overcomes the mechanical load of a loading mechanism added on a valve clack by relying on the action of working medium pressure to open and close the safety valve, and the safety valve is directly contacted with the working medium, so that other impurities such as scale deposit and the like block or corrode the safety valve, hidden dangers are left for safety, the electromagnetic safety valve is usually poor in reliability, the electromagnetic valve is long in maintenance time, and the replacement cost is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a safety hydraulic valve for a hydraulic pneumatic control system.
In order to achieve the purpose, the invention adopts the technical scheme that:
a safety hydraulic valve for a hydraulic pneumatic control system comprises an electromagnetic valve cavity, wherein a pressure measuring cavity is fixedly connected to one side of the outer surface of the electromagnetic valve cavity, a piston is arranged in the pressure measuring cavity, a film is fixedly connected to the outer surface of one side of the piston, a piston rod is fixedly connected to one end, away from the film, of the piston, a pressure guide pipe is fixedly connected to the upper end of the pressure measuring cavity, an electromagnetic control cavity is fixedly connected to the lower portion of the pressure measuring cavity, two permanent magnets are arranged in the electromagnetic control cavity, a coil winding is slidably arranged between the two permanent magnets, a transmission rod is fixedly connected to one end of the coil winding, a limiting block is fixedly connected to the middle of the transmission rod, a first spring is fixedly connected to one end, away from the winding coil, of the limiting block, a rotary table is rotatably connected to, fixedly connected with transmission piece on the arc lateral wall of carousel, solenoid valve intracavity fixedly connected with installation axle just rotates on the installation axle and is connected with the balancing weight, it is connected with the transmission shaft to rotate on the balancing weight, it is connected with the transfer line to rotate on the transmission shaft, the lower extreme fixedly connected with pressure relief plug of transfer line, the lower fixed surface of solenoid valve chamber is connected with the pressure relief pipe, and the lower fixed surface of pressure relief pipe is connected with the admission pipe, the through-hole has been seted up on the inner wall of admission pipe one end, and this device is equipped with two safety mechanism in electromagnetic control chamber and pressure-measuring chamber, relies on the pressure-measuring chamber work of mechanical type under the normal condition, and when pressure-measuring chamber film blocks or damages, the work is put into operation in the solenoid valve chamber.
Further, the upper end fixedly connected with magnet of pressure relief plug, and the upper end fixedly connected with second spring of magnet, the one end fixed connection that magnet was kept away from to the second spring is on the inner wall of pressure relief pipe, and the pressure relief pipe is the circular steel tube, and magnet attracts steel tubular product, and the elasticity of spring can make pressure relief plug and through-hole inclosed inseparabler.
Furthermore, a sealing ring is bonded inside a through hole formed in the inner wall of one end of the pressure inlet pipe, and the sealing ring can prevent a medium in the pressure container from leaking, so that the safety valve works more stably.
Furthermore, one end, far away from the limiting block, of the first spring is fixedly connected with the inner wall of the electromagnetic control cavity, and the first spring can enable the coil winding to stably reset, so that the device stably works.
Furthermore, the lower bottom end of the electromagnetic valve cavity is fixedly connected with a vertically arranged limiting pipe, the transmission rod penetrates through the limiting pipe and the inner wall of the electromagnetic valve cavity, the limiting pipe can enable the pressure relief plug at the lower end of the transmission rod to accurately reset, and the working stability of the device is improved.
Furthermore, a vertically arranged limiting pipe is fixedly connected to the lower bottom of the electromagnetic valve cavity, the transmission rod penetrates through the limiting pipe and the inner wall of the electromagnetic valve cavity, the limiting pipe can enable the pressure relief plug at the lower end of the transmission rod to accurately reset, and the working stability of the device is improved.
Furthermore, film fixed connection is in the bottom in pressure measuring chamber, the piston rod runs through the inner wall in pressure measuring chamber, and the film can make pressure vessel leakproofness better, and the soft pressure reaction sensitivity of film texture is high.
Furthermore, the transmission rod penetrates through the outer wall of the electromagnetic valve cavity, one end, far away from the winding coil, of the transmission rod is rotatably installed in the transmission groove through the rotating shaft, the transmission groove has a limiting effect on the transmission rod, one end of the transmission rod is rotatably connected with the rotating shaft, and the transmission rod can work more stably.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the device is provided with two safety mechanisms of an electromagnetic control cavity and a pressure measuring cavity, the device works by depending on a mechanical pressure measuring cavity under normal conditions, and when a film of the pressure measuring cavity is blocked or damaged, the electromagnetic valve cavity is put into operation, so that the overall reliability of the safety valve is ensured, and the maintenance cost of the safety valve is reduced.
(2) The elasticity of the second spring can make the pressure relief plug and the through hole more tightly sealed.
(3) The sealing ring can avoid the leakage of the medium in the pressure container, so that the safety valve works more stably.
(4) The first spring can enable the coil winding to be reset stably, and the device works stably.
(5) The limiting pipe can enable the pressure relief plug at the lower end of the transmission rod to accurately reset, and the working stability of the device is improved.
(6) The film can make the pressure vessel have better tightness, and the film texture is soft and the pressure reaction sensitivity is high.
(7) The transmission groove has a limiting effect on a transmission rod with one end rotatably connected with the rotating shaft, so that the transmission rod can work more stably.
The invention relates to a scheme.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a schematic structural diagram of a position a in fig. 1.
Wherein: 1. an electromagnetic valve cavity; 2. a pressure measurement cavity; 3. a piston; 4. a film; 5. a limiting block; 6. a permanent magnet; 7. a coil winding; 8. a first spring; 9. a turntable; 10. a transmission rod; 11. rotating the block; 12. installing a shaft; 13. a pressure relief pipe; 14. a piston rod; 15. a drive shaft; 16. a limiting pipe; 17. a pressure relief plug; 18. a seal ring; 19. a magnet; 20. a second spring; 21. a balancing weight; 22. a pressure guide pipe; 23. an electromagnetic control cavity 24 and a transmission groove; 25. and a pressure inlet pipe.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The invention discloses a safety hydraulic valve for a hydraulic pneumatic control system as shown in figure 1, which comprises an electromagnetic valve cavity 1, wherein one side of the outer surface of the electromagnetic valve cavity 1 is fixedly connected with a pressure measuring cavity 2, a piston 3 is arranged in the pressure measuring cavity 2, the outer surface of one side of the piston 3 is fixedly connected with a film 4, one end of the piston 3, which is far away from the film 4, is fixedly connected with a piston rod 14, the film 4 is fixedly connected with the bottom end of the pressure measuring cavity 2, the piston rod 14 penetrates through the inner wall of the pressure measuring cavity 1, the film 4 can enable the tightness of a pressure container to be better, the texture of the film 4 is soft, the pressure response sensitivity is high, the upper end of the pressure measuring cavity 2 is fixedly connected with a pressure guide pipe 22, the lower part of the pressure measuring cavity 2 is fixedly connected with an electromagnetic control cavity 23, two permanent magnets 6 are arranged in, the lower bottom end of the electromagnetic valve cavity 1 is fixedly connected with a vertically arranged limiting pipe 16.
Referring to fig. 2, the transmission rod 10 penetrates through the limiting tube 16 and the inner wall of the electromagnetic valve cavity 1, the limiting tube 16 can accurately reset the pressure relief plug 17 at the lower end of the transmission rod 10, so as to improve the working stability of the device, the middle part of the transmission rod 10 is fixedly connected with the limiting block 5, one end of the limiting block 5, which is far away from the winding coil 7 (the internal structure and the working principle of the coil winding 7 are well known and well-known in the art, and are not described herein in detail), is fixedly connected with the first spring 8, one end of the first spring 8, which is far away from the limiting block 5, is fixedly connected with the inner wall of the electromagnetic control cavity 23, the first spring 8 can stably reset the coil winding 7, so that the device stably works, one end of the transmission rod 10, which is far away from the winding coil 7, is rotatably connected with the turntable 9 through, the one end that winding coil 7 was kept away from to transfer line 10 is rotated through the pivot and is installed in transmission groove 24, transmission groove 24 rotates the transfer line 10 that is connected with the pivot to one end has a limiting displacement, can make more stable of transfer line 10 work, fixedly connected with transmission piece 11 on the arc lateral wall of carousel 9, fixedly connected with installation axle 12 in the electromagnetism valve pocket 1, and rotate on installation axle 12 and be connected with balancing weight 21, rotate on balancing weight 21 and be connected with transmission shaft 15, rotate on the transmission shaft 15 and be connected with transfer line 10.
Referring to fig. 3, a pressure relief plug 17 is fixedly connected to a lower end of the transmission rod 10, a magnet 19 is fixedly connected to an upper end of the pressure relief plug 17, a second spring 20 is fixedly connected to an upper end of the magnet 19, one end of the second spring 20, which is far away from the magnet 19, is fixedly connected to an inner wall of the pressure relief pipe 13, the pressure relief pipe 13 is a round steel pipe, the pressure relief plug 17 and the through hole are more closed tightly due to elasticity of the second spring 20, the pressure relief pipe 13 is fixedly connected to a lower surface of the electromagnetic valve cavity 1, a pressure inlet pipe 25 is fixedly connected to a lower surface of the pressure relief pipe 13, a sealing ring 18 is bonded inside the through hole formed in an inner wall of one end of the pressure inlet pipe 25, the sealing ring 18 can prevent a medium in the pressure container from leaking, the safety.
When the device is used, the pressure inlet pipe 25 is firstly connected into a pressure container, the pressure release pipe 13 is connected into a safety container, then the pressure guide pipe 22 is communicated with the pressure container, the air pressure in the pressure container enters a pressure measuring cavity through the pressure guide pipe 22, the film 4 in the pressure measuring cavity 2 is expanded by the air pressure in the pressure container, when the air pressure is continuously expanded enough to push the piston 3 to move, the piston 3 pushes the piston rod 14 to move backwards, the piston rod 14 moves backwards to abut against the balancing weight 21, the balancing weight 21 rotates clockwise along the mounting shaft 12, the transmission rod 10 connected to the balancing weight 21 also starts to move upwards, so that the air release plug 17 is opened, the air pressure in the pressure container is discharged from the pressure release pipe 13, after the pressure release is completed, the balancing weight 21 pushes the piston rod 14 and the piston 3 to reset under the action of gravity, the pressure release plug is closed, when the reaction is not sensitive enough due to excessive water scale in the pressure measuring, the coil winding 7 is driven to drive the transmission rod 10, the transmission rod 10 is driven to rotate the rotary table 9, the rotating block 11 fixedly connected to the rotary table 9 moves upwards to jack up the transmission rod 10 which is obliquely arranged, so that the pressure relief plug 17 is opened to relieve pressure of the pressure container, the coil winding 7 is powered off after pressure relief is completed, the first spring 8 fixedly connected to the electromagnetic control cavity 24 can drive the transmission rod 10 to reset, the transmission rod 10 drives the coil winding 7 to reset, the transmission rod 10 drives the rotary table 9 to reset, the rotating block 11 returns to the initial position, the transmission rod 10 which is obliquely arranged resets, and the pressure relief plug is closed.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a safe hydrovalve for hydraulic pressure pneumatic control system, includes solenoid valve chamber (1) its characterized in that: the pressure measuring device is characterized in that a pressure measuring cavity (2) is fixedly connected to one side of the outer surface of the electromagnetic valve cavity (1), a piston (3) is arranged in the pressure measuring cavity (2), a film (4) is fixedly connected to the outer surface of one side of the piston (3), a piston rod (14) is fixedly connected to one end, far away from the film (4), of the piston (3), a pressure guiding pipe (22) is fixedly connected to the upper end of the pressure measuring cavity (2), an electromagnetic control cavity (23) is fixedly connected to the lower portion of the pressure measuring cavity (2), two permanent magnets (6) are installed in the electromagnetic control cavity (23), a coil winding (7) is installed between the two permanent magnets (6) in a sliding mode, a transmission rod (10) is fixedly connected to one end of the coil winding (7), a limiting block (5) is fixedly connected to the middle of the transmission rod (10), and a first spring (, and the one end that winding coil (7) were kept away from in transfer line (10) rotates through the pivot and is connected with carousel (9), transmission groove (24) have been seted up to one side below of carousel (9), fixedly connected with transmission piece (11) on the arc lateral wall of carousel (9), fixedly connected with installation axle (12) in electromagnetic valve chamber (1), and rotate on installation axle (12) and be connected with balancing weight (21), it is connected with transmission shaft (15) to rotate on balancing weight (21), it is connected with transfer line (10) to rotate on transmission shaft (15), the lower extreme fixedly connected with pressure relief plug (17) of transfer line (10), the lower fixed surface of electromagnetic valve chamber (1) is connected with pressure relief pipe (13), and the lower fixed surface of pressure relief pipe (13) is connected with pressure inlet pipe (25), the through-hole has been seted up on pressure inlet pipe (25) one.
2. The safety hydraulic valve for the hydraulic pneumatic control system according to claim 1, characterized in that: the upper end fixedly connected with magnet (19) of pressure relief plug (17), and the upper end fixedly connected with second spring (20) of magnet (19), the one end fixed connection that magnet (19) were kept away from in second spring (20) is on the inner wall of pressure relief pipe (13), and pressure relief pipe (13) are the circular steel tube.
3. The safety hydraulic valve for the hydraulic pneumatic control system according to claim 1, characterized in that: and a sealing ring (18) is bonded inside a through hole formed in the inner wall of one end of the pressure inlet pipe (25).
4. The safety hydraulic valve for the hydraulic pneumatic control system according to claim 1, characterized in that: one end, far away from the limiting block (5), of the first spring (8) is fixedly connected with the inner wall of the electromagnetic control cavity (23).
5. The safety hydraulic valve for the hydraulic pneumatic control system according to claim 1, characterized in that: the lower bottom end of the electromagnetic valve cavity (1) is fixedly connected with a vertically arranged limiting pipe (16), and the transmission rod (10) penetrates through the limiting pipe (16) and the inner wall of the electromagnetic valve cavity (1).
6. The safety hydraulic valve for the hydraulic pneumatic control system according to claim 1, characterized in that: the film (4) is fixedly connected to the bottom end of the pressure measuring cavity (2), and the piston rod (14) penetrates through the inner wall of the pressure measuring cavity (1).
7. The safety hydraulic valve for the hydraulic pneumatic control system according to claim 1, characterized in that: the transmission rod (10) penetrates through the outer wall of the electromagnetic valve cavity (1), and one end, far away from the winding coil (7), of the transmission rod (10) is rotatably installed in the transmission groove (24) through a rotating shaft.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911420692.4A CN110985745A (en) | 2019-12-31 | 2019-12-31 | Safety hydraulic valve for hydraulic pneumatic control system |
| DE202020106134.8U DE202020106134U1 (en) | 2019-12-31 | 2020-08-07 | Safety valve for hydraulic electrical control systems |
| PCT/CN2020/107616 WO2021135231A1 (en) | 2019-12-31 | 2020-08-07 | Safety hydraulic valve for hydraulic electric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911420692.4A CN110985745A (en) | 2019-12-31 | 2019-12-31 | Safety hydraulic valve for hydraulic pneumatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110985745A true CN110985745A (en) | 2020-04-10 |
Family
ID=70080263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911420692.4A Withdrawn CN110985745A (en) | 2019-12-31 | 2019-12-31 | Safety hydraulic valve for hydraulic pneumatic control system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110985745A (en) |
| DE (1) | DE202020106134U1 (en) |
| WO (1) | WO2021135231A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135231A1 (en) * | 2019-12-31 | 2021-07-08 | 帕格曼科技(太仓)有限公司 | Safety hydraulic valve for hydraulic electric control system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286158A (en) * | 2001-03-27 | 2002-10-03 | Maezawa Kyuso Industries Co Ltd | Electromagnetic stop cock |
| CN202545906U (en) * | 2012-04-12 | 2012-11-21 | 成都华泰燃气设备有限公司 | Quick action emergency valve |
| CN103711956B (en) * | 2013-12-30 | 2015-12-09 | 乐山市山鹰模具有限责任公司 | Automatic emergency cut-off valve |
| CN110118280A (en) * | 2018-02-07 | 2019-08-13 | 盐城市大丰燃气设备有限公司 | Hyper-pressure pressure-loss disconnecting device |
| CN110985745A (en) * | 2019-12-31 | 2020-04-10 | 帕格曼科技(太仓)有限公司 | Safety hydraulic valve for hydraulic pneumatic control system |
-
2019
- 2019-12-31 CN CN201911420692.4A patent/CN110985745A/en not_active Withdrawn
-
2020
- 2020-08-07 DE DE202020106134.8U patent/DE202020106134U1/en not_active Expired - Lifetime
- 2020-08-07 WO PCT/CN2020/107616 patent/WO2021135231A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135231A1 (en) * | 2019-12-31 | 2021-07-08 | 帕格曼科技(太仓)有限公司 | Safety hydraulic valve for hydraulic electric control system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021135231A1 (en) | 2021-07-08 |
| DE202020106134U1 (en) | 2020-11-25 |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200410 |
|
| WW01 | Invention patent application withdrawn after publication |