CN112555471B - Pressure relief valve for protecting blind-mate fluid connector socket - Google Patents
Pressure relief valve for protecting blind-mate fluid connector socket Download PDFInfo
- Publication number
- CN112555471B CN112555471B CN202011312650.1A CN202011312650A CN112555471B CN 112555471 B CN112555471 B CN 112555471B CN 202011312650 A CN202011312650 A CN 202011312650A CN 112555471 B CN112555471 B CN 112555471B
- Authority
- CN
- China
- Prior art keywords
- piston
- relief valve
- shell
- pressure relief
- fluid connector
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention provides a pressure relief valve for protecting a blind-mate fluid connector socket, which comprises a shell, a piston, a spring, a retainer ring and a sealing ring, wherein the diameters of inner cavities of the shell are different, the piston is arranged in the shell, the spring is arranged between the shell and the piston, the sealing ring is arranged on the inner wall of the piston, the piston moves along an axis in the shell under the action of the internal pressure, the atmospheric pressure, the spring force and the friction force of a cooling module, when the piston moves at a part with a small diameter of the inner cavity of the shell, the airtightness between the shell and the piston is ensured through the retainer ring, when the piston moves to a part with a large diameter of the inner cavity of the shell, a gap is formed between the outer wall of the piston and the shell, and air is introduced into a pressure relief valve and a fluid channel in the cooling module communicated with the pressure relief valve through the gap to reduce the internal negative pressure so as to ensure that a sealing head of the fluid connector socket is reset in time. The invention can prolong the service life of the sealing ring and the fluid connector socket and improve the reliability and the safety of the fluid connector.
Description
Technical Field
The invention relates to a pressure relief valve, in particular to a pressure relief valve for protecting a blind-mate fluid connector socket.
Background
Blind mate fluid connectors, as a means of connection and transfer between liquid cooling systems, are typically comprised of two parts, a receptacle mounted on a cooling module and a plug mounted on the base of a cooling circuit of a rack or enclosure (see fig. 1). The socket and the plug need to achieve good sealing effect in the connection, disconnection and connection states, and the normal work of the liquid cooling system can be guaranteed.
When the blind-mate fluid connector is disconnected, especially when the valve is not closed in normal fluid flow and is disconnected under pressure, the inside of the cooling module can generate large negative pressure, the negative pressure can lead to the complete resetting of the sealing head of the socket (the pressure relief valve is not synchronously installed on the cooling module) to generate delay, and the complete resetting time of the sealing head of the blind-mate fluid connector socket of a certain model after the disconnection of the fluid connector is 4-5 minutes through field tests. At the moment of disconnection of the fluid connector, the socket sealing head is not in a complete reset state, and the O-shaped sealing ring is clearly seen from the figure, so that certain axial shearing force can be generated on the O-shaped sealing ring of the socket by the sealing head, and the service life of the O-shaped sealing ring can be reduced by plugging and unplugging the O-shaped sealing ring for many times.
Disclosure of Invention
The invention aims to provide a pressure relief valve for protecting a blind-mate fluid connector socket.
The technical solution for realizing the purpose of the invention is as follows: a pressure relief valve for blind mate fluid connector socket protection, includes casing, piston, spring, retaining ring, second sealing washer, wherein:
the casing inner chamber diameter is different, the piston sets up inside the casing, the spring sets up between casing and piston, the second sealing washer sets up on the piston inner wall, along with the difference of fluid coupling plug and socket separation degree, the piston is at cooling module internal pressure, atmospheric pressure, the spring force, under the effect of friction, move along the axis inside the casing, when the piston moves at the little position of casing inner chamber diameter, the gas tightness between casing and the piston has been guaranteed to the second sealing washer, when the piston moves the big position of casing inner chamber diameter, appear the space between piston outer wall and the casing, the air gets into the inside fluid passage of cooling module that relief valve and be linked together from the space, can reduce inside negative pressure, ensure that fluid coupling socket seals the head and in time resets.
Further, the inner wall of the shell is provided with a check ring, the outer wall of the piston is provided with a chamfer, and the piston and the spring are assembled inside the shell in a matching manner, so that the moving range of the piston is limited.
Further, the first sealing ring is arranged at the joint of the shell and the cooling module, and the air tightness between the pressure relief valve and the cooling module is guaranteed.
Furthermore, the first sealing ring and the second sealing ring are O-shaped sealing rings, and annular grooves are formed in the shell and the piston and used for mounting the O-shaped sealing rings.
Furthermore, a blind counter bore is arranged in the piston and used for guaranteeing the storage space of the spring after the spring is completely compressed and ensuring the spring to be guided and stably compressed along the axis.
A method for protecting a blind-mate fluid connector socket comprises the following steps of in the disconnection process of a fluid connector, based on the pressure relief valve, protecting the blind-mate fluid connector socket:
1) Process 1: when the fluid flow in the plug and the socket of the fluid connector is completely stopped, the plug and the socket are still in a contact state, the pressure intensity in the flow channel of the cooling module is gradually changed from positive pressure to negative pressure along with the increase of the separation degree of the plug and the socket, when the negative pressure reaches a certain value, the pressure relief valve piston is in a moving critical state, and at the moment, a retainer ring of the pressure relief valve is in contact with a chamfer;
2) And (2) a process: along with the further increase of the separation degree of the plug and the socket, the negative pressure in the cooling module is further increased, the pressure relief valve piston starts to move the compression spring from a movement critical state, the pressure relief valve piston moves at a part with a small diameter of the inner cavity of the shell, the air tightness between the shell and the piston is ensured by the second sealing ring, and at the moment, external air does not enter the pressure relief valve;
3) And 3, process: along with the further increase of the separation degree of the plug and the socket, the negative pressure in the cooling module is further increased, the pressure relief valve piston moves from a place with a small diameter of the inner cavity of the shell to a place with a large diameter of the inner cavity, at the moment, the second sealing ring on the piston is changed from a sealing state to an air leakage state, and external air enters the flow channel of the cooling module through the pressure relief valve;
4) And 4, process 4: when external air enters the cooling module flow channel through the pressure relief valve and reaches a certain degree, the internal pressure of the cooling module flow channel is reduced to the extent that the internal pressure is not enough to offset the elastic force of the resultant force formed by the pressure difference and the friction force of the internal atmosphere and the external atmosphere against the piston, the piston moves to be reset to the sealing state isolated from the external atmosphere, and the protection of the blind-plugging fluid connector socket is completed.
Compared with the prior art, the invention has the following remarkable advantages: the problem of cooling module go up the blind-mate fluid connector socket life that the valve was lifted off in step limited is solved, prevented that socket internal seal head from to O type sealing washer axial shear force's production, prolonged the life of O type sealing washer and fluid connector socket, improved fluid connector reliability and security to lift off and press valve simple structure, the reliability is high.
Drawings
Fig. 1 is a schematic view of the assembly and connection of a cooling module, a cooling line, a fluid connector, and a pressure relief valve.
Fig. 2 is a schematic assembled view of a relief valve assembly.
Fig. 3 is a schematic view of a relief valve piston in a critical state with open external air.
Fig. 4 is a schematic view of the relief valve in an outside air inlet state.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further 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 present application and are not intended to limit the present application.
Combine fig. 2, pressure relief valve comprises casing 1, piston 2, spring 3, retaining ring 4, first sealing washer 5, second sealing washer 6, and piston 2, spring 3 are inside through retaining ring 4 equipment to casing 1. The 1 inner chamber diameter variation in size of casing, pressure relief valve mainly is through 1 inner chamber diameter variation in size of casing, introduces the air admission and presses the inside fluid passage of cooling module that the valve is linked together of relief valve, reduces inside negative pressure, and then ensures that the sealed head of fluid connector socket in time resets. An O-shaped sealing ring is arranged on the piston 2 in an annular groove, and a certain chamfer is arranged at the right end of the piston 2 and used for preventing the piston 2 from moving leftwards and then rightwards to reset, and the check ring 4 possibly interferes with the movement and resetting of the piston 2. The piston 2 is internally provided with a blind counter bore which is used for storing space after the spring is completely compressed and ensuring the spring to be stably compressed along the axis direction. An O-shaped sealing ring is arranged on the shell 1 in an annular groove.
In the disconnection process of the fluid connector, positive pressure greater than external atmospheric pressure inside a cooling module flow channel is converted into negative pressure less than external atmospheric pressure, due to the main effect of the negative pressure inside the cooling module flow channel, a piston 2 moves leftwards along an axis in a shell 1, a connecting channel with external air is opened, air enters the inside of the cooling module flow channel, negative pressure inside the cooling module flow channel is reduced, the instant disconnection of the fluid connector is ensured, a socket sealing head synchronously and completely resets, the generation of axial shearing force of an O-shaped sealing ring arranged in a fluid connector socket by the socket sealing head is prevented, the service lives of the O-shaped sealing ring and the fluid connector socket are prolonged, and the reliability and the safety of the fluid connector are improved. At fluid connector disconnection in-process, the pressure relief valve is according to different disconnection degree, is three kinds of different gestures, 4 kinds of processes.
1) The relief valve is the posture process 1 of fig. 2: when the fluid connector plug, the inside fluid flow of socket suspend completely, plug, socket still are in the contact state, along with plug, the increase of socket separation degree, the inside pressure of cooling module runner is gradually become the negative pressure by the malleation, when the negative pressure reaches a definite value, pressure relief valve piston [2] is in and removes critical state, and pressure relief valve still is the gesture of fig. 2 this moment.
2) The relief valve is the posture process 2 of fig. 3: with reference to fig. 3, along with the further increase of the degree of separation of the plug and the socket, the negative pressure inside the cooling module is further increased, the pressure relief valve piston [2] starts to move leftwards by being in the moving critical state, and moves to the state of fig. 3, the sealing ring 2[6 on the pressure relief valve piston [2] is in the critical state of opening with the outside air, and the outside air does not enter the pressure relief valve at this moment.
3) Relief valve is fig. 4 gesture process 3: with reference to fig. 4, along with the further increase of the degree of separation of the plug and the socket, the negative pressure inside the cooling module is further increased, the pressure relief valve piston [2] moves from the small diameter part of the inner cavity of the shell [1] to the large diameter part of the inner cavity, the O-shaped sealing ring [6] on the piston [2] is changed from a sealing state to an air leakage state at the moment, and outside air enters the flow channel of the cooling module through the pressure relief valve.
4) Relief valve recovers gesture process 4: with reference to fig. 2 and 3, the relief valve recovers the process: when outside air gets into the inside certain degree that reaches of cooling module runner through pressure relief valve, inside pressure of cooling module runner reduces to and is not enough to offset in, outside atmospheric pressure difference, when the resultant force that friction formed confronts spring [3] to piston [2] elasticity, piston [2] will remove right, pressure relief valve recovers to the state between 3 and the 2 gestures of figure, cooling module runner inside pressure still is less than outside atmospheric pressure this moment, inside and the outside isolated state that is in of cooling module runner, but compare with the cooling module equivalent state that does not install pressure relief valve, the inside negative pressure of cooling module runner has reduced to and has been not enough to influence the socket and be in the final position state of totally enclosed under the promotion of inside spring.
When the actual process is observed, blind-mating fluid connector socket and plug when breaking off completely, the sealed head of the socket installed on the cooling module resets in step completely, does not produce the delay phenomenon, has prevented the sealed head from producing to the built-in O type sealing washer axial shear force of fluid connector socket, has prolonged the life of O type sealing washer and fluid connector socket, and whole in-process, breaks the pressure valve and does not have liquid to flow out, has improved fluid connector reliability and security.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. A pressure relief valve for blind mate fluid connector socket protection, its characterized in that includes casing (1), piston (2), spring (3), retaining ring (4), second sealing washer (6), wherein:
the diameter of the inner cavity of the shell (1) is different, the piston (2) is arranged inside the shell (1), the spring (3) is arranged between the shell (1) and the piston (2), the second sealing ring (6) is arranged on the inner wall of the piston (2), along with the difference of the separation degree of a plug and a socket of the fluid connector, the piston (2) moves along the axis inside the shell under the action of the internal pressure, the atmospheric pressure, the spring force and the friction force of the cooling module, when the piston (2) moves at the part with the small diameter of the inner cavity of the shell (1), the second sealing ring (6) ensures the air tightness between the shell (1) and the piston (2), when the piston (2) moves to the part with the large diameter of the inner cavity of the shell (1), a gap appears between the outer wall of the piston (2) and the shell (1), and air enters the pressure relief valve and the fluid channel inside the cooling module communicated with the pressure relief valve from the gap, so that the internal sealing negative pressure can be reduced, and the timely resetting of the socket head of the fluid connector can be ensured;
the inner wall of the shell (1) is provided with a retainer ring (4), the outer wall of the piston (2) is provided with a chamfer, the piston (2) and the spring (3) are assembled inside the shell (1) in a matching manner, and the moving range of the piston (2) is limited;
and a blind counter bore is arranged in the piston (2) and used for ensuring the storage space of the spring after the spring is completely compressed and ensuring the spring to be stably compressed along the axis in a guiding way.
2. Pressure relief valve for blind mate fluid connector socket protection according to claim 1, characterized in that a first sealing ring (5) is provided at the connection of the housing (1) and the cooling module for ensuring the air tightness of the pressure relief valve connection with the cooling module.
3. The pressure relief valve for blind mate fluid connector socket protection of claim 2, wherein the first and second sealing rings (5, 6) are O-ring seals, and annular grooves are provided on the housing (1) and piston (2) for mounting the O-ring seals.
4. A method for protecting a blind mate fluid connector socket, wherein during disconnection of a fluid connector, a pressure relief valve according to any one of claims 1 to 3 is used for protecting the blind mate fluid connector socket, and the method comprises the following steps:
1) Process 1: when the fluid flow in the plug and the socket of the fluid connector is completely stopped, the plug and the socket are still in a contact state, the pressure intensity in the flow passage of the cooling module is gradually changed from positive pressure to negative pressure along with the increase of the separation degree of the plug and the socket, when the negative pressure reaches a certain value, the piston of the pressure relief valve is in a moving critical state, and at the moment, a retainer ring (4) of the pressure relief valve is in contact with a chamfer;
2) And (2) a process: along with the further increase of the separation degree of the plug and the socket, the negative pressure in the cooling module is further increased, the pressure relief valve piston (2) starts to move the compression spring from a movement critical state, the pressure relief valve piston (2) moves at the part with the small diameter of the inner cavity of the shell (1), the second sealing ring (6) ensures the air tightness between the shell (1) and the piston (2), and at the moment, external air does not enter the pressure relief valve;
3) And 3, process: along with the further increase of the separation degree of the plug and the socket, the negative pressure in the cooling module is further increased, the pressure relief valve piston (2) moves from the place with small diameter of the inner cavity of the shell (1) to the place with large diameter of the inner cavity, at the moment, the second sealing ring (6) on the piston (2) is changed into an air leakage state from a sealing state, and external air enters the inside of a flow channel of the cooling module through the pressure relief valve;
4) And 4, process: when external air enters the cooling module flow channel through the pressure relief valve to a certain degree, the pressure inside the cooling module flow channel is reduced to a pressure which is not enough to offset the pressure difference between the internal atmosphere and the external atmosphere and the friction force to generate resultant force to resist the elastic force of the spring (3) to the piston (2), the piston (2) moves to be reset to a sealing state isolated from the external atmosphere, and the protection of the blind-plugging fluid connector socket is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312650.1A CN112555471B (en) | 2020-11-20 | 2020-11-20 | Pressure relief valve for protecting blind-mate fluid connector socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312650.1A CN112555471B (en) | 2020-11-20 | 2020-11-20 | Pressure relief valve for protecting blind-mate fluid connector socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112555471A CN112555471A (en) | 2021-03-26 |
| CN112555471B true CN112555471B (en) | 2022-12-13 |
Family
ID=75044335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011312650.1A Active CN112555471B (en) | 2020-11-20 | 2020-11-20 | Pressure relief valve for protecting blind-mate fluid connector socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112555471B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115003130A (en) * | 2022-06-30 | 2022-09-02 | 中国科学院长春光学精密机械与物理研究所 | Liquid cooling board blind-mate type connecting device |
| CN119852777B (en) * | 2025-03-21 | 2025-06-17 | 东莞市欧派奇电子科技有限公司 | Waterproof dustproof power socket |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394120A (en) * | 1971-05-10 | 1975-05-14 | British Oxygen Co Ltd | Safety valves |
| JP2001012627A (en) * | 1999-06-30 | 2001-01-16 | Iseki & Co Ltd | Hydraulic relief valve |
| CN201179272Y (en) * | 2008-02-05 | 2009-01-14 | Amsino医疗集团控股有限公司 | One-way positive pressure valve |
| CN202158239U (en) * | 2011-07-18 | 2012-03-07 | 娄衍叶 | Novel constant-temperature valve pressure reducer |
| CN102401160A (en) * | 2011-08-09 | 2012-04-04 | 汪砚秋 | Conical core pressure difference one-way valve |
| JP2013257030A (en) * | 2012-06-14 | 2013-12-26 | Sumitomo Rubber Ind Ltd | Relief valve and compressor fitted with the same |
| CN104964078A (en) * | 2015-07-13 | 2015-10-07 | 成都恩吉威汽车系统有限公司 | Piston type fluid decompression mechanism |
| CN205161011U (en) * | 2015-11-23 | 2016-04-13 | 中国电子科技集团公司第十四研究所 | Piston automatic relief pressure device |
| CN108708996A (en) * | 2018-07-02 | 2018-10-26 | 上海银轮热交换系统有限公司 | Concealed check valve |
| CN108953706A (en) * | 2018-07-31 | 2018-12-07 | 舍弗勒技术股份两合公司 | Engine, transmission mechanism, tensioner and pressure reducing valve |
| CN210266036U (en) * | 2019-07-24 | 2020-04-07 | 浙江易达汽车零部件有限公司 | a one-way valve |
| CN210372177U (en) * | 2019-09-04 | 2020-04-21 | 台州信溢农业机械有限公司 | Be applied to relief valve on atomizer |
| CN111609186A (en) * | 2020-04-30 | 2020-09-01 | 山东龙普太阳能股份有限公司 | Safety relief valve |
-
2020
- 2020-11-20 CN CN202011312650.1A patent/CN112555471B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394120A (en) * | 1971-05-10 | 1975-05-14 | British Oxygen Co Ltd | Safety valves |
| JP2001012627A (en) * | 1999-06-30 | 2001-01-16 | Iseki & Co Ltd | Hydraulic relief valve |
| CN201179272Y (en) * | 2008-02-05 | 2009-01-14 | Amsino医疗集团控股有限公司 | One-way positive pressure valve |
| CN202158239U (en) * | 2011-07-18 | 2012-03-07 | 娄衍叶 | Novel constant-temperature valve pressure reducer |
| CN102401160A (en) * | 2011-08-09 | 2012-04-04 | 汪砚秋 | Conical core pressure difference one-way valve |
| JP2013257030A (en) * | 2012-06-14 | 2013-12-26 | Sumitomo Rubber Ind Ltd | Relief valve and compressor fitted with the same |
| CN103511690A (en) * | 2012-06-14 | 2014-01-15 | 住友橡胶工业株式会社 | Overflow valve and compressor installed with same |
| CN104964078A (en) * | 2015-07-13 | 2015-10-07 | 成都恩吉威汽车系统有限公司 | Piston type fluid decompression mechanism |
| CN205161011U (en) * | 2015-11-23 | 2016-04-13 | 中国电子科技集团公司第十四研究所 | Piston automatic relief pressure device |
| CN108708996A (en) * | 2018-07-02 | 2018-10-26 | 上海银轮热交换系统有限公司 | Concealed check valve |
| CN108953706A (en) * | 2018-07-31 | 2018-12-07 | 舍弗勒技术股份两合公司 | Engine, transmission mechanism, tensioner and pressure reducing valve |
| CN210266036U (en) * | 2019-07-24 | 2020-04-07 | 浙江易达汽车零部件有限公司 | a one-way valve |
| CN210372177U (en) * | 2019-09-04 | 2020-04-21 | 台州信溢农业机械有限公司 | Be applied to relief valve on atomizer |
| CN111609186A (en) * | 2020-04-30 | 2020-09-01 | 山东龙普太阳能股份有限公司 | Safety relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112555471A (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112555471B (en) | Pressure relief valve for protecting blind-mate fluid connector socket | |
| CN106939950B (en) | Self-pressure-relief fluid connector | |
| CN204255647U (en) | A kind of borescope stopper structure for the shutoff of casing hole | |
| CN110005890B (en) | Real-time leak detection device of fluid connector | |
| CN104180064A (en) | Stop valve | |
| CN210106834U (en) | Real-time leak detection device for fluid connector | |
| CN110906033B (en) | Modular pressure relief assembly capable of automatically relieving pressure | |
| CN212131415U (en) | Pressure adjusting mechanism for on-line checking of density relay | |
| CN220792408U (en) | Fluid connection plug and fluid connector | |
| CN201875333U (en) | Slave and master quick joint | |
| CN111750187A (en) | Novel blind plug of piston | |
| CN215721557U (en) | Closed liquid cooling quick connector | |
| CN113154100B (en) | Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection | |
| CN219755442U (en) | Fluid connector with self-discharging function | |
| CN215489069U (en) | Novel general stopper seals up sealed hydrogenation rifle | |
| CN106641535B (en) | A kind of gas quick-release connector | |
| CN115498448A (en) | Gas-electricity integrated plug-in device for torch | |
| CN212690953U (en) | Valve seat capable of realizing moderate pressure relief after long-time high-pressure environment work | |
| CN109296810B (en) | Electric control exhaust device | |
| CN203604734U (en) | High-airtightness valve core | |
| CN221075648U (en) | Quick fluid joint | |
| CN207961534U (en) | Container value | |
| CN217873032U (en) | Cylinder head | |
| CN221221852U (en) | Quick-inserting mechanism for gas-liquid communication of automatic equipment | |
| CN221347894U (en) | A fire-fighting gas container 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |