CN110486553B - Fluid connector with self-protection function fluid stopping mechanism - Google Patents
Fluid connector with self-protection function fluid stopping mechanism Download PDFInfo
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- CN110486553B CN110486553B CN201910712462.9A CN201910712462A CN110486553B CN 110486553 B CN110486553 B CN 110486553B CN 201910712462 A CN201910712462 A CN 201910712462A CN 110486553 B CN110486553 B CN 110486553B
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- socket
- plug
- spring
- shell
- fluid
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
Abstract
A fluid connector with a self-protection function fluid stopping mechanism comprises a plug and a socket, wherein the plug comprises a plug shell and a plug valve core, the socket comprises a socket shell and a socket valve core, the rear end of the plug shell is fixedly provided with a plug spring seat plate, the plug spring seat plate pushes a plug pressing block to a first sealing step surface through a first plug spring, and a second plug spring is arranged between the plug pressing block and the plug valve core; the socket spring seat board is arranged at the rear end of the socket shell, the socket valve element is sleeved with the socket pressing block in a sliding mode, the socket pressing block is pressed against the second sealing step face through the first socket spring, the sealing ring is assembled between the socket valve element and the plug shell, and the second socket spring is arranged between the sealing ring and the socket pressing block. The invention ensures that the plug and the socket can not generate huge instantaneous flow pulse and pressure pulse in the process of pressing, inserting and separating so as to protect the O-shaped ring, and can also reduce the leakage of the fluid connector caused by misoperation during inserting and separating due to unremoved pressure of the system.
Description
Technical Field
The invention belongs to the technical field of fluid connectors, and particularly relates to a fluid connector with a self-protection function fluid stopping mechanism.
Background
In the operation or debugging process of a liquid cooling system, a liquid cooling module in the system often needs to be debugged and maintained, the system pressure may not be completely removed after the system is shut down, at the moment, when the liquid cooling module is plugged and unplugged, the fluid connector is equivalently plugged and unplugged under pressure, huge instantaneous flow pulse and pressure pulse can be generated in the plugging and unplugging process, and for the fluid connector which does not support the plugging and unplugging under pressure, an O-shaped ring exposed in fluid on a valve core in the fluid connector can be damaged or fall off, so that the sealing failure of the fluid connector after the disconnection is caused. The structure of the current fluid connector which does not support hot plugging is shown in fig. 2, if hot plugging is performed by force, in the plugging process, when a flow channel is suddenly opened, huge flow pulses and pressure pulses can be formed instantly, and two O-shaped rings 3 exposed in fluid can turn over to separate from an O-shaped ring groove under the action of the pulses and even fall off to flow into a system flow channel. The O-shaped ring 3 which is out of the groove can be extruded and broken by the reciprocating shell in the disconnection process, so that the fluid connector fails to be sealed after being disconnected; o-rings flowing into the system flow path can also block the system flow path causing system failure resulting in greater economic loss.
Disclosure of Invention
In order to solve the problem of damage to the fluid connector caused by hot plugging, the invention provides the fluid connector with a self-protection function, so that a plug and a socket cannot generate huge instantaneous flow pulse and pressure pulse in the hot plugging and separating processes, and an O-shaped ring is protected.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The fluid connector with the self-protection function fluid stopping mechanism comprises a plug and a socket, wherein the plug comprises a plug shell and a plug valve core which is assembled at the front end in the plug shell in a sliding manner, the socket comprises a socket shell and a socket valve core which is fixedly assembled in the socket shell and matched with the plug valve core in a pushing manner, the plug valve core and the socket valve core are respectively provided with an O-shaped ring, a plug fluid channel which extends along the axial direction is arranged in the plug shell, a socket fluid channel which extends along the axial direction is arranged in the socket shell, the rear end in the plug shell is fixedly provided with a plug spring seat plate, and when the plug and the socket are not plugged, the plug spring seat plate elastically pushes a plug press block to a first sealing step surface arranged in the middle of the plug shell through a first plug spring so as to realize sealing; a second plug spring is arranged between the plug pressing block and the plug valve core, and a first radial gap is formed between the plug pressing block and the inner wall of the plug shell; the rear end of the socket shell is fixedly provided with a socket spring seat plate, a socket press block is slidably sleeved on the socket valve core, and when the plug and the socket are not plugged, the socket spring seat plate elastically presses the socket press block on a second sealing step surface arranged in the middle of the socket shell through a first socket spring to realize sealing; and a sealing ring which is matched with the plug shell in a pushing manner is assembled between the socket valve core and the socket shell in a sliding manner, a second socket spring is installed between the sealing ring and the socket pressing block, and a second radial gap is formed between the socket pressing block and the inner wall of the socket shell.
The invention is further realized by adopting the following technical scheme.
In the fluid connector, the socket valve core is fixedly mounted on the socket spring seat plate through the snap spring fixed on the socket spring seat plate.
In the fluid connector, the sealing ring is arranged between the socket pressing block and the socket valve element.
In the fluid connector, at least one first through hole communicated with the plug fluid channel is formed in the plug spring seat plate; and at least one second through hole communicated with the socket fluid channel is formed in the socket spring seat plate.
The fluid connector of the foregoing, wherein the receptacle housing front end is provided with a tapered guide surface for guiding engagement with the plug housing.
In the fluid connector, the front end of the plug pressing block is provided with the first front limiting part for radially limiting the second plug spring, the rear end of the plug pressing block is provided with the first rear limiting part for radially limiting the first plug spring, and the outer edge of the plug pressing block is provided with the first sealing part which extends towards the plug end of the plug shell and is abutted against the first sealing step surface to realize sealing fit.
In the fluid connector, the front end of the socket pressing block is provided with the second front limiting part for radially limiting the second socket spring, the rear end of the socket pressing block is provided with the second rear limiting part for radially limiting the first socket spring, and the outer edge of the socket pressing block is provided with the second sealing part which extends towards the socket shell in the plugging end direction and is abutted against the second sealing step surface to realize sealing fit.
In the aforementioned fluid connector, the front end of the plug spring seat plate is convexly provided with a protrusion for radially limiting the first plug spring.
In the aforementioned fluid connector, the plug press block and the socket press block are both made of a rubber material, or are made of a metal material as a core and the rubber material is wrapped on the surface of the core.
In the fluid connector, the first socket spring and the second socket spring are both sleeved on the socket valve core.
In the process of inserting and separating the plug and the socket under pressure, the fluid stop mechanism formed by the plug pressing block and the socket pressing block firstly stops the liquid flow in the fluid connector, so that the liquid in the plug and the socket is in a static state when the plug and the socket are just inserted and finally separated, huge instantaneous flow pulse and pressure pulse cannot be generated, the O-shaped rings on the plug valve core and the socket valve core cannot be impacted by the liquid flow, damage or fracture cannot occur, and the self-protection of the fluid connector during the process of inserting and separating under pressure is realized. In addition, the invention can also greatly reduce the leakage of the fluid connector caused by the misoperation of plugging and unplugging due to the undetached pressure of the system, further improve the stability and reliability of the system and reduce the economic loss.
Drawings
Fig. 1 is a schematic view of the fluid connector structure of the present invention.
Fig. 2 is a schematic view of a prior art fluid connector that does not support hot plugging.
Fig. 3 is a schematic view showing a state in which the fluid connector of the present invention is preliminarily inserted.
Fig. 4 is a schematic view of the fluid connector of the present invention in the inserted position.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 4, the fluid connector with a self-protection fluid stopping mechanism of the present invention includes a plug and a socket adapted to the plug, the front ends of the plug and the socket are both plug ends, the plug includes a plug housing 101 and a plug valve core 102 slidably assembled at the front end inside the plug housing, the socket includes a socket housing 201 and a socket valve core 202 fixedly assembled in the socket housing and in pushing fit with the plug valve core 102, both the plug valve core and the socket valve core are provided with O-rings 3, and the 0-ring 3 is embedded in corresponding annular grooves of the plug valve core/the socket valve core. The plug housing 101 has a plug fluid channel 103 extending along the axial direction, the socket housing 201 has a socket fluid channel 203 extending along the axial direction, when the plug and the socket are not inserted, the plug fluid channel 103 is blocked by the plug valve core 102, and the socket fluid channel 203 is blocked by the socket valve core 202 matching with the sealing ring 204.
The rear end inside the plug housing 101 is fixedly provided with a plug spring seat plate 104, when the plug and the socket are not plugged, the plug spring seat plate 104 elastically pushes a plug press block 106 against a first sealing step surface 107 arranged in the middle of the plug housing through a first plug spring 105, so that a part of a fluid channel at the rear end of the first sealing step surface in the plug fluid channel 103 is sealed and isolated from a part of the fluid channel at the front end of the first sealing step surface. A second plug spring 108 for axial movement of the plug valve core is arranged between the plug pressing block 106 and the plug valve core 102, and the plug pressing block elastically presses the plug valve core against the outlet at the front end of the plug shell through the second plug spring to realize plugging. Therefore, the plug pressing block can realize axial movement under the elastic force action of the first plug spring and the second plug spring. Specifically, the front end of the plug pressing block 106 is provided with a first front limiting portion 1061 for radially limiting the rear end of the second plug spring 108, the rear end of the plug pressing block 106 is provided with a first rear limiting portion 1062 for radially limiting the front end of the first plug spring 105, and the outer edge of the plug pressing block 106 is provided with a first sealing portion 1063 extending towards the plug end direction of the plug housing and used for abutting against the first sealing step surface 107 to realize sealing fit. The front end of the plug spring seat plate 104 is provided with a protrusion 1041 for radially limiting the rear end of the first plug spring 105. The plug spring seat plate 104 is provided with a first through hole 1042 communicated with the plug fluid channel 103 and used for communicating the pipeline and the plug fluid channel; preferably, the first through-holes are provided in plurality and radially distributed on the plug spring seat plate.
A socket spring seat plate 205 is fixedly arranged at the rear end inside the socket shell 201, a snap spring 206 is fixedly arranged in the middle of the socket spring seat plate 205, and the socket valve element 202 penetrates through the socket spring seat plate 205 and then is embedded with the snap spring 206 to realize axial fixation. The socket valve core 202 extends to the front end of the socket shell in the axial direction, a socket pressing block 207 is sleeved on the socket valve core 202 in a sliding mode, and a sealing ring 208 is arranged between the socket pressing block 207 and the socket valve core 202 to guarantee that the socket pressing block 207 and the socket valve core 202 can be sealed when sliding relatively. When the plug and the socket are not inserted, the socket spring seat plate 205 elastically presses the socket pressing block 207 against a second sealing step surface 210 arranged in the middle of the socket shell through the first socket spring 209, so as to seal and isolate a part of the fluid passage in the socket fluid passage 203 at the rear end of the second sealing step surface from a part of the fluid passage at the front end of the second sealing step surface. A sealing ring 204 which is matched with the plug housing 101 in an ejecting way is slidably assembled between the socket valve core 202 and the socket housing 201, and a second socket spring 211 is installed between the sealing ring and the socket pressing block. When the plug and the socket are not plugged, the second socket spring 211 elastically pushes the sealing ring 204 between the front end of the plug of the socket and the inner wall of the front end of the socket shell under the supporting action of the socket pressing block and seals the fluid channel 203 of the socket. By means of the structure, the socket pressing block can axially move under the elastic force action of the first socket spring and the second socket spring. Specifically, the front end of the socket pressing block is convexly provided with a second front limiting part 2071 for radially limiting the rear end of the second socket spring 211, the rear end of the socket pressing block is convexly provided with a second rear limiting part 2072 for radially limiting the front end of the first socket spring 209, and the outer edge of the socket pressing block is provided with a second sealing part 2073 which extends towards the socket housing plug end direction and is used for abutting against the second sealing step surface 210 to realize sealing fit. A second through hole 2051 communicated with the socket fluid channel 203 is formed in the socket spring seat plate 205 and is used for communicating a pipeline with the socket fluid channel; preferably, the second through holes are provided in plurality and radially distributed on the socket spring seat plate. Preferably, the first socket spring 209 and the second socket spring 211 are both sleeved on the periphery of the socket valve core to realize auxiliary guiding and limiting when the springs are axially compressed or extended.
A first radial gap 109 is provided between the plug press block 106 and the inner wall of the plug housing 101, which allows the plug press block to float radially, so as to ensure that when the plug press block 106 moves axially and away from the first sealing step surface 107, liquid can flow into the plug fluid passage at the front end of the first sealing step surface from the plug fluid passage at the rear end of the first sealing step surface through the first radial gap 109, thereby forming a plug fluid passage through the plug housing. Similarly, a second radial gap 212 is formed between the socket pressing block 207 and the inner wall of the socket housing 201, and the function of the second radial gap is the same as that of the first radial gap, which is not described herein again; but the receptacle pressure piece 207 need not float radially as it needs to remain sealingly sliding with the receptacle poppet 202.
Preferably, in order to ensure better sealing performance between the plug pressing block and the first sealing step surface and better sealing performance between the socket pressing block and the second sealing step surface, the plug pressing block and the socket pressing block are both made of rubber materials, or made of metal materials as a core body and the rubber materials are wrapped on the surface of the core body, but the materials of the plug pressing block and the socket pressing block are not limited by the invention.
Preferably, the front end of the receptacle housing 201 is provided with a tapered guide surface 213 for guiding engagement with the plug housing 101.
The working principle of the invention is as follows:
in the process of press-fit insertion of the plug and the socket, when the flow channel just begins to open, the first plug spring 105 pushes the plug press block 106 to make the plug press block and the first sealing step surface 107 of the plug shell mutually extrude and deform and keep a sealing state, and the first socket spring 209 elastically pushes the socket press block 207 to make the socket press block and the second sealing step surface 210 of the socket shell mutually extrude and deform and keep a sealing state. At this time, although the plug and the socket are plugged, the liquid inside the plug/socket fluid channel does not flow, as shown in fig. 4, the plug valve core 102 is pushed by the socket valve core 202 initially and then moves axially, the sealing ring 204 is pushed by the front end face of the plug housing 101 and moves axially toward the rear end of the socket housing, the second plug spring 108 and the second socket spring 211 are both compressed at this time, and the plug valve core and the O-ring 3 on the socket valve core are not impacted by the liquid flow and are not damaged or broken. When the plug and the socket are continuously inserted to a certain position, the elastic jacking force of the second plug spring 108 is larger than that of the first plug spring 105 and is enough to push the plug pressing block 106 to move axially, the plug pressing block 106 is pushed to move towards the rear end of the plug shell 101, and the sealing state of the plug pressing block 106 and the plug shell 101 is released; the elastic pushing force of the second socket spring 211 is larger than that of the first socket spring 209 and is enough to push the socket pressing block 207 to move axially, so that the socket pressing block 207 is pushed to move towards the rear end of the socket shell 201 and the sealing state between the socket pressing block and the socket shell is released. At this time, the flow channel is already opened by half, the liquid in the plug and the socket starts to circulate, and is limited by the increasing of the elastic jacking force rather than the sudden change, the plug pressing block 106 and the socket pressing block 207 move slowly and the liquid circulation continuously increases, so that huge instantaneous flow pulse and pressure pulse are avoided, and the plug and the socket are continuously inserted to a working state, as shown in fig. 4, at this time, the plug fluid channel 103 is completely communicated with the socket fluid channel 203, and the O-shaped rings 3 on the plug valve core and the socket valve core can bear the impact generated by the liquid flow at this time and cannot be damaged or broken.
In the process of separating the plug and the socket, the separation is started from the working state after the fluid connector is plugged, which is the same as the plugging process. The liquid in the fluid connector is firstly cut off, as shown in fig. 4, at this time, the first plug spring 105 and the first socket spring 209 are firstly reset, the corresponding plug pressing block 106 and the corresponding socket pressing block 207 are respectively abutted against and pressed and sealed with the respective sealing step surfaces, and then the plug and the socket are continuously separated, so that the plug valve core and the O-shaped ring 3 on the socket valve core are ensured not to be impacted by the liquid flow and not to be damaged or broken. At this time, although the plug and the socket are not completely separated, liquid is stopped in the corresponding fluid channel at the rear end of the plug/socket pressing block in the subsequent separation process, and liquid leakage cannot occur. The fluid stop mechanism formed by matching the plug pressing block and the socket pressing block with the corresponding springs can protect the O-shaped ring 3 from being impacted to improve the convenience of system maintenance, and can also greatly reduce the leakage of the fluid connector caused by misoperation during plugging due to the fact that the pressure of the system is not removed, further improve the stability and reliability of the system and reduce the economic loss.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.
Claims (10)
1. A fluid connector with a self-protection function fluid stopping mechanism comprises a plug and a socket, wherein the plug comprises a plug shell and a plug valve core which is assembled at the front end in the plug shell in a sliding manner, the socket comprises a socket shell and a socket valve core which is fixedly assembled in the socket shell and matched with the plug valve core in a pushing manner, O-shaped rings are arranged on the plug valve core and the socket valve core, a plug fluid channel which extends along the axial direction is arranged in the plug shell, and a socket fluid channel which extends along the axial direction is arranged in the socket shell; a second plug spring is arranged between the plug pressing block and the plug valve core, and a first radial gap is formed between the plug pressing block and the inner wall of the plug shell;
the rear end of the socket shell is fixedly provided with a socket spring seat plate, a socket press block is slidably sleeved on the socket valve core, and when the plug and the socket are not plugged, the socket spring seat plate elastically presses the socket press block on a second sealing step surface arranged in the middle of the socket shell through a first socket spring to realize sealing; and a sealing ring which is matched with the plug shell in a pushing manner is assembled between the socket valve core and the socket shell in a sliding manner, a second socket spring is installed between the sealing ring and the socket pressing block, and a second radial gap is formed between the socket pressing block and the inner wall of the socket shell.
2. The fluid connector with a self-protecting function fluid stop mechanism according to claim 1, characterized in that: the socket valve core is fixedly arranged on the socket spring seat plate in a penetrating mode through a clamp spring fixed on the socket spring seat plate.
3. The fluid connector with a self-protecting function fluid stop mechanism according to claim 1, characterized in that: and a sealing ring is arranged between the socket pressing block and the socket valve core.
4. The fluid connector with a self-protecting function fluid stop mechanism according to claim 1, characterized in that: the plug spring seat plate is provided with at least one first through hole communicated with the plug fluid channel; and at least one second through hole communicated with the socket fluid channel is formed in the socket spring seat plate.
5. The fluid connector with a self-protecting function fluid shut-off mechanism according to any one of claims 1 to 4, wherein: the front end of the socket shell is provided with a conical guide surface which is used for guiding and matching with the plug shell.
6. The fluid connector with a self-protecting function fluid stop mechanism according to claim 1, characterized in that: the protruding first preceding spacing portion that is used for radial spacing second plug spring that is equipped with of front end of plug briquetting, the protruding first back spacing portion that is used for radial spacing first plug spring that is equipped with of rear end, the outer border of plug briquetting have to plug housing connect spigot end direction extend and be used for with first sealed step face butt in order to realize sealed complex first sealing.
7. The fluid connector with a self-protecting function fluid shut-off mechanism according to claim 1 or 6, characterized in that: the protruding spacing portion before the second that is used for radial spacing second socket spring that is equipped with of front end, the protruding spacing portion after the rear end that is equipped with of rear end of socket briquetting are used for radial spacing first socket spring, and the outer border of socket briquetting has to socket housing connect the spigot end direction extend and be used for with the sealed step face butt of second in order to realize sealed complex second sealing.
8. The fluid connector with a self-protecting function fluid stop mechanism according to claim 6, characterized in that: the front end of the plug spring seat plate is convexly provided with a bulge for radially limiting the first plug spring.
9. The fluid connector with a self-protecting function fluid stop mechanism according to claim 1, characterized in that: the plug pressing block and the socket pressing block are both made of rubber materials, or metal materials are used as core bodies, and the rubber materials are wrapped on the surfaces of the core bodies.
10. The fluid connector with a self-protecting function fluid stop mechanism according to claim 1, characterized in that: the first socket spring and the second socket spring are sleeved on the socket valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712462.9A CN110486553B (en) | 2019-08-02 | 2019-08-02 | Fluid connector with self-protection function fluid stopping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712462.9A CN110486553B (en) | 2019-08-02 | 2019-08-02 | Fluid connector with self-protection function fluid stopping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110486553A CN110486553A (en) | 2019-11-22 |
| CN110486553B true CN110486553B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910712462.9A Active CN110486553B (en) | 2019-08-02 | 2019-08-02 | Fluid connector with self-protection function fluid stopping mechanism |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211177174U (en) * | 2019-11-26 | 2020-08-04 | 广东美的制冷设备有限公司 | Joint connector and air conditioner |
| CN110873249A (en) * | 2019-12-07 | 2020-03-10 | 杭州大立过滤设备有限公司 | Joint for preventing leakage during replacement |
| TWI751821B (en) * | 2020-12-03 | 2022-01-01 | 詠晟科技股份有限公司 | Fluid connector |
| US20210190218A1 (en) * | 2021-02-01 | 2021-06-24 | Intel Corporation | Pressure regulator valve assembly for quick disconnect fittings |
| CN114992401A (en) * | 2022-05-20 | 2022-09-02 | 中航光电科技股份有限公司 | Fluid connector capable of being operated under large pressure difference and socket thereof |
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| EP1213524A2 (en) * | 2000-12-08 | 2002-06-12 | Ingeborg Marquart | Coupling device for transferring fluid pressure |
| CN105090652A (en) * | 2015-08-31 | 2015-11-25 | 中国电子科技集团公司第四十研究所 | Push-pull type fluid connector |
| CN205606045U (en) * | 2016-03-31 | 2016-09-28 | 恺霖卫浴科技（厦门）有限公司 | Coupling with end contraryly and overload protection function |
| CN106939950A (en) * | 2017-04-28 | 2017-07-11 | 中国电子科技集团公司第四十研究所 | It is a kind of from pressure release fluid connector |
| WO2017216296A1 (en) * | 2016-06-16 | 2017-12-21 | Fmc Kongsberg Subsea As | Poppet coupling |
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2019
- 2019-08-02 CN CN201910712462.9A patent/CN110486553B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213524A2 (en) * | 2000-12-08 | 2002-06-12 | Ingeborg Marquart | Coupling device for transferring fluid pressure |
| CN105090652A (en) * | 2015-08-31 | 2015-11-25 | 中国电子科技集团公司第四十研究所 | Push-pull type fluid connector |
| CN205606045U (en) * | 2016-03-31 | 2016-09-28 | 恺霖卫浴科技（厦门）有限公司 | Coupling with end contraryly and overload protection function |
| WO2017216296A1 (en) * | 2016-06-16 | 2017-12-21 | Fmc Kongsberg Subsea As | Poppet coupling |
| CN106939950A (en) * | 2017-04-28 | 2017-07-11 | 中国电子科技集团公司第四十研究所 | It is a kind of from pressure release fluid connector |
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| CN110486553A (en) | 2019-11-22 |
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