CN102679075B - Floating female joint and joint assembly using same - Google Patents
Floating female joint and joint assembly using same Download PDFInfo
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- CN102679075B CN102679075B CN201210190441.3A CN201210190441A CN102679075B CN 102679075 B CN102679075 B CN 102679075B CN 201210190441 A CN201210190441 A CN 201210190441A CN 102679075 B CN102679075 B CN 102679075B
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Abstract
The invention relates to a floating female joint and a joint assembly using the same. The floating female joint comprises a valve body and a valve core, wherein the valve body comprises a fixed part and a floating part assembled at the front end of the fixed part, the valve core is arranged in the floating part and is in anti-play fit with the floating part in a direction perpendicular to the fore-and-aft direction, the rear end of the valve core is provided with a connecting component in a threaded mode, the rear end of the fixed part is in stop fit with an everted edge arranged at the rear end of the connecting component so as to connect the fixed part and floating part of the valve body together, a floating gap is formed between the outer circumferential surface of a part (located in the fixed part) of the connecting component and the inner wall surface of the fixed part, the rear end face of the floating part of the valve body is in sliding seal fit with the front end face of the fixed part through an end-face seal ring, an elastic seal ring is embedded in a corresponding seal ring groove, and the seal ring groove is formed on the rear end face of the floating part of the valve body or the front end face of the fixed part of the valve body, thereby solving the problem that in the existing rapid joint assembly, an effect of self-adapting centering on male and female joints cannot be achieved.
Description
Technical field
The present invention relates to pipe joint field, especially a kind of floating type female joint and use the adapter assembly of this joint.
Background technique
In some transfusions, the occasion of gas transmission, often need to use rapid connector component, application number is that 2009100651552 the disclosed rapid connector component of Chinese patent is exactly a kind of in numerous adapter assemblies, described adapter assembly comprises the public affairs of mutual grafting, female joint, public, female joint is one-way joint and has separately valve body and spool, wherein the spool of tool joint pin is movable spool, the spool of female joint is fixed spool, tool joint pin is the fitted seal of the outer circumferential face by its movable spool between the internal face of its valve body when separated with female joint, female joint when separated with tool joint pin by being enclosed within piston sleeve on its fixed spool with fixed spool and coordinating of valve body realizing sealing, specifically, described piston sleeve is sealed and matched with the inner peripheral surface of the outer circumferential face of spool and the valve body of female joint simultaneously, male and female joint is when pegging graft, the bayonet end of tool joint pin inserts the fluid passage of female joint and pushes piston sleeve, thereby remove the sealing of female joint, meanwhile, the fixed spool of female joint pushes the movable spool of tool joint pin, thereby remove the sealing of tool joint pin, finally make the common penetrating fluid passage that forms of male and female joint.
In above-mentioned rapid connector component, because tool joint pin is the fixed spool depressurization by female joint, female joint is the valve body depressurization by tool joint pin, therefore than more stable work the adapter assembly of other the spool release of assembling by elasticity mutually on market, therefore obtained application comparatively widely, but in some special occasions, sometimes need to public affairs, fix or the two is separately fixed on different parts and is realized inserting for one in female joint, this just makes the two in the concentricity when inserting, be difficult to guarantee, if it is pegged graft by force under the state of the two decentraction, will certainly be destroyed, the Applicable scope of the rapid connector component that this defect is dwindled greatly.
In sum, the male and female joint of existing rapid connector component cannot adaptive centering, and occasion applicatory is limited.
Summary of the invention
The object of the present invention is to provide a kind of floating type female joint, with solve between the male and female joint of existing rapid connector component cannot adaptive centering problem.
Meanwhile, the present invention also aims to provide the adapter assembly that uses above-mentioned floating type female joint.
In order to address the above problem, floating type female joint of the present invention is by the following technical solutions: floating type female joint, this joint be take front end as bayonet end, comprise valve body and be assemblied in the spool in the fluid passage of valve body, described valve body comprises the fixing part being fixedly assembled together for the installation matrix with corresponding and is assemblied in the float portion of fixing part front end, spool is located in float portion and in the direction vertical with fore-and-aft direction and float portion Anti-moving coordinates, the movement backward of float portion block spool, the rear end Screw assembly of spool has link, the rear end of described link passes the fixing part of valve body backward, thereby the rear end of described fixing part outer the turn edge block set with link rear end coordinates the fixing part of valve body and float portion linked together, between the outer circumferential face of the part in fixing part of link and the internal face of fixing part, there is flying height, between the ear end face of the float portion of valve body and the front-end face of fixing part, by end-face seal ring slipper seal, coordinate, elastic seal ring is inlaid in corresponding seal groove, described seal groove is opened on the ear end face of float portion of valve body or on the front-end face of the fixing part of valve body.
The float portion of valve body comprises and one in front and one in back linking together and protheca and the rear cover of cooperation sealed to each other, the rear end of described rear cover has an assembly wall, the fluid via hole connecting before and after assembly wall is provided with, the rear end of spool is backward through being spirally connected with link after described assembly wall, described float portion by assembly wall be located at step surface between the two ends of spool coordinate the movement backward of block spool.
The rear end of described link has the sleeve sections of an open rearward end, and the perisporium of this sleeve sections is provided with the through hole that is communicated with its opening and described fluid passage.
The port of the bayonet end of described valve body is horn mouth.
Adapter assembly of the present invention is by the following technical solutions: adapter assembly, comprise public affairs, female joint, public, it is front end that its bayonet end is separately take respectively in female joint, tool joint pin comprises the first valve body and along fore-and-aft direction activity, is assemblied in the first spool in the fluid passage of the first valve body, female joint comprises the second valve body and is assemblied in the second spool in the fluid passage of the second valve body, described the second valve body comprises the fixing part being fixedly assembled together for the installation matrix with corresponding and is assemblied in the float portion of fixing part front end, the second spool is located in float portion and in the direction vertical with fore-and-aft direction and float portion Anti-moving coordinates, the movement backward of float portion block spool, the rear end Screw assembly of the second spool has link, described link be take its one end near the rear end of the second valve body as rear end, the rear end of link passes the fixing part of the second valve body backward, thereby the rear end of described fixing part outer the turn edge block set with link rear end coordinates the fixing part of the second valve body and float portion is assembled together, between the outer circumferential face of the part in fixing part of link and the internal face of fixing part, there is flying height, between the ear end face of the float portion of the second valve body and the front-end face of fixing part, by end-face seal ring slipper seal, coordinate, elastic seal ring is inlaid in corresponding seal groove, described seal groove is opened on the ear end face of float portion of the second valve body or on the front-end face of the fixing part of the second valve body.
The float portion of the second valve body comprises and one in front and one in back linking together and protheca and the rear cover of cooperation sealed to each other, the rear end of described rear cover has an assembly wall, the fluid via hole connecting before and after assembly wall is provided with, the rear end of the second spool is backward through being spirally connected with link after described assembly wall, and described float portion coordinates the movement backward of block the second spool by assembly wall with the step surface being located between the two ends of the second spool.
The rear end of described link has the sleeve sections of an open rearward end, and the perisporium of this sleeve sections is provided with the through hole of the fluid passage that is communicated with its opening and the second valve body.
Described the first spool is hollow-core construction and has seal spool section and the spool guide section one in front and one in back arranging, the critical place of seal spool section and spool guide section forms a step surface towards tool joint pin the place ahead, the fluid passage of the first valve body comprises the valve seal section setting gradually from front to back, changeover portion and valve body guide section, three's internal diameter increases successively, spool guide section coordinates with valve body guide section guiding along fore-and-aft direction, between changeover portion and valve body guide section, there is the step surface that coordinates block the first spool to move forward with step surface on spool, spool guide section leads and coordinates on fore-and-aft direction with valve body guide section, work as public affairs, when female joint is separated, front end outer circumferential face and the valve seal section of seal spool section are sealed and matched, on spool, corresponding described changeover portion place offers penetrating outlet.
The port of the bayonet end of described the second valve body is horn mouth.
Because floating type female joint of the present invention is made as its valve body the split-type structural with fixing part and float portion, and there is flying height between the outer circumferential face of the part in fixing part of described link and the internal face of fixing part, in the fixing part of valve body and float portion one the fitting surface place at the two is provided with seal groove and is sealed and matched by the end-face seal ring being fitted in seal groove by the two, therefore, in the process of using when tool joint pin grafting with adaptive, if the center line of the pipeline at the two place not conllinear or operator carries out accurate centering by the two, can be under the prerequisite of sealing (effect of end-face seal ring) that guarantees valve body by described float portion and common unsteady of spool, automatically adapt to centering, avoided the two damage that may therefore be subject to, realize the smooth grafting of the two, the public affairs of existing rapid connector component have been solved, problem that cannot adaptive centering between female joint.
Accompanying drawing explanation
Fig. 1 is the embodiment's 1 of floating type female joint of the present invention structural representation;
Fig. 2 is the structural representation of the tool joint pin in the embodiment 1 of adapter assembly of the present invention;
Fig. 3 is the structural representation of the female joint in the embodiment 1 of adapter assembly of the present invention;
Fig. 4 is the view that plugs together of male and female joint in the embodiment 1 of adapter assembly of the present invention.
Embodiment
The embodiment 1 of floating type female joint of the present invention, as shown in Figure 1, this joint is one-way joint and usings front end as bayonet end, comprise valve body and spool 11, valve body is split-type structural, comprise the float portion and the fixing part 12 that are one in front and one in back assembled together, together with the endoporus of float portion and fixing part 12, form the fluid passage of valve body, the rear end of fixing part 12 is provided with for the outside thread of the installation matrix secure fit with corresponding and is provided with seal ring in externally threaded tool withdrawal groove, sealing circle can be used for guaranteeing being sealed and matched between fixing part 12 and corresponding installation matrix, in addition, the front end of fixing part 12 is provided with the edge of protecting of turning up and forming, this protects locking along after being conducive to realize fixing part 12 and corresponding installation matrix assembling, float portion comprises the tandem protheca being assembled together 13 and rear cover 14, in the present embodiment, between protheca 13 and rear cover 14, be threaded and be provided with seal ring, before sealing circle has been realized, the sealing of the cooperation place of rear cover, the front port of protheca 13 is bell-mouth structure of air, this horn mouth forms the socket of valve body, during use, can insert for adaptive tool joint pin, the rear end of rear cover 14 has an assembly wall 15, the fluid via hole 15-1 connecting before and after assembly wall 15 is provided with, fluid via hole 15-1 is for passing through for corresponding fluid, the outer wall of spool 11 between its two ends is provided with the rearward step surface of face, its part being positioned at after step surface is passed assembly wall 15 backward, before remaining part is positioned at assembly wall 15, float portion coordinates block spool 11 movement backward by assembly wall 15 with the block of step surface on spool 11, the rear end of spool 11 is provided with outside thread and is bolted with link 16, the rear end of link 16 is passed backward the rear end of fixing part 12 and is provided with outer turning edge, the rear end of fixing part 12 coordinates with the leading flank block of link 16, by spool 11, the fixing part of valve body and float portion tension are linked together, between the internal face of the outer circumferential face of link 16 and fixing part 12, there is flying height, during power on being subject to correspondence direction, link 16 can float with the float portion of spool 11 and valve body in the direction of the center line of vertical spool 11, on the ear end face of rear cover 14, offer annular seal groove and in seal groove, be embedded with end-face seal ring 17, end-face seal ring 17 is fitted between the ear end face of rear cover 14 and the front-end face of fixing part 12, when there is radially (direction of the center line of vertical spool) relative displacement between rear cover 14 and fixing part 12, end-face seal ring 17 can be used for keeping between the two the sealing in cooperation place, the rear end of link 16 has a sleeve sections, the open rearward end of this sleeve sections and the through hole 16-1 connecting inside and outside periphery wall is provided with, and this through hole 16-1 is communicated with the open rearward end of the sleeve sections of link 16 with the fluid passage of valve body, the front end of spool 11 has a sealing head, before, in the space that rear cover surrounds, be also provided with piston sleeve 18, piston sleeve 18 coordinates with protheca 13 guiding along fore-and-aft direction, when the tool joint pin with adaptive is separated, between the internal face of the outer circumferential face of piston sleeve 18 and protheca 13, slipper seal coordinates, the internal face of match cover 18 alive coordinates with the outer circumferential face slipper seal of sealing head, in this simultaneously, the internal face of protheca 13 is provided with the rearward step surface of face and coordinates block piston sleeve 18 to deviate from from the front end of protheca 13 by this step surface with the gear edge of turning up of the rear end setting of piston sleeve 18, when the tool joint pin with adaptive is pegged graft, this piston sleeve is pushed backward by the housing of tool joint pin and final depressurization, realize the perforation between the two ends of fluid passage of valve body.
In other embodiment of floating type female joint of the present invention, outer the turning edge of the link rear end described in the embodiment 1 of above-mentioned floating type female joint can also replace with block, in such cases, require block can not seal the rear port of fixing part completely, link can adopt solid construction.
The embodiment 1 of adapter assembly of the present invention, as in Figure 2-4, consists of tool joint pin 101 and female joint 102, and it is front end that male and female joint be take respectively its bayonet end separately.
The structure of tool joint pin as shown in Figure 2, this joint is one-way joint, comprise the first valve body and be located at the first spool 21 in the fluid passage of the first valve body, the first spool 21 along fore-and-aft direction (note: in this section unless otherwise indicated outside, the fore-and-aft direction relating to is all consistent with the fore-and-aft direction of tool joint pin) coordinate with the first valve body is movable, the first valve body is split-type structural, comprise and be positioned at the tailstock 22 of rear end and the fore shell 23 together with tailstock 22 Screw assemblies at tailstock 22 front ends, between tailstock 22 and fore shell 23, by seal ring, be sealed and matched, the rear end of tailstock 22 is provided with outside thread, this outside thread is for being fixedly connected with corresponding installation matrix, the first spool 21 is for hollow-core construction and have seal spool section and the spool guide section being one in front and one in back wholely set, the critical place of seal spool section and spool guide section forms a step surface towards tool joint pin the place ahead, the fluid passage of the first valve body 21 comprises the valve seal section setting gradually from front to back, changeover portion and valve body guide section, three's internal diameter increases successively, spool guide section coordinates with valve body guide section guiding along fore-and-aft direction, between changeover portion and valve body guide section, there is the step surface that coordinates block the first spool to move forward with step surface on spool, spool guide section leads and coordinates on fore-and-aft direction with valve body guide section, work as public affairs, when female joint is separated, front end outer circumferential face and the valve seal section of seal spool section are sealed and matched, on spool, corresponding described changeover portion place offers penetrating outlet 24.
The structure of female joint as shown in Figure 3, identical with the structure of joint in the embodiment 1 of above-mentioned floating type female joint, comprise the second valve body and the second spool 31, the second valve body is split-type structural, comprise one in front and one in back (note: in this section unless otherwise indicated outside, the fore-and-aft direction relating to is all consistent with the fore-and-aft direction of female joint) float portion and the fixing part 32 that are assembled together, together with the endoporus of float portion and fixing part 32, form the fluid passage of the second valve body, the rear end of fixing part 32 is provided with for the outside thread of the installation matrix secure fit with corresponding and is provided with seal ring in externally threaded tool withdrawal groove, sealing circle can be used for guaranteeing being sealed and matched between fixing part 32 and corresponding installation matrix, in addition, the front end of fixing part 32 is provided with the edge of protecting of turning up and forming, this protects locking along after being conducive to realize fixing part 32 and corresponding installation matrix assembling, float portion comprises the tandem protheca being assembled together 33 and rear cover 34, in the present embodiment, between protheca 33 and rear cover 34, be threaded and be provided with seal ring, before sealing circle has been realized, the sealing of the cooperation place of rear cover, the front port of protheca 33 is bell-mouth structure of air, this horn mouth forms the socket of second valve body, during use, can insert for the front end of tool joint pin, the rear end of rear cover 34 has an assembly wall 35, the fluid via hole 35-1 connecting before and after assembly wall 35 is provided with, fluid via hole 35-1 is for passing through for corresponding fluid, the outer wall of the second spool 31 between its two ends is provided with the rearward step surface of face, its part being positioned at after step surface is passed assembly wall 35 backward, before remaining part is positioned at assembly wall 35, float portion coordinates block the second spool 31 movement backward by assembly wall 35 with the block of step surface on the second spool 31, the rear end of the second spool 31 is provided with outside thread and is bolted with link 36, the rear end of link 36 is passed backward the rear end of fixing part 32 and is provided with outer turning edge, the rear end of fixing part 32 coordinates with the leading flank block of link 36, by the second spool 31, the fixing part of the second valve body and float portion tension are linked together, between the internal face of the outer circumferential face of link 36 and fixing part 32, there is flying height, during power on being subject to correspondence direction, link 36 can float with the float portion of the second spool 31 and the second valve body in the direction of the center line of vertical the second spool 31, on the ear end face of rear cover 34, offer annular seal groove and in seal groove, be embedded with end-face seal ring 37, end-face seal ring 37 is fitted between the ear end face of rear cover 34 and the front-end face of fixing part 32, when there is radially (direction of the center line of vertical the second spool) relative displacement between rear cover 34 and fixing part 32, end-face seal ring 37 can be used for keeping between the two the sealing in cooperation place, the rear end of link 36 has a sleeve sections, the open rearward end of this sleeve sections and the through hole 36-1 connecting inside and outside periphery wall is provided with, and this through hole 36-1 is communicated with the open rearward end of the sleeve sections of link 36 with the fluid passage of the second valve body, the front end of the second spool 31 has a sealing head, before, in the space that rear cover surrounds, be also provided with piston sleeve 38, piston sleeve 38 coordinates with protheca 33 guiding along fore-and-aft direction, when separated with tool joint pin, between the internal face of the outer circumferential face of piston sleeve 38 and protheca 33, slipper seal coordinates, the internal face of match cover 38 alive coordinates with the outer circumferential face slipper seal of sealing head, in this simultaneously, the internal face of protheca 33 is provided with the rearward step surface of face and coordinates block piston sleeve 38 to deviate from from the front end of protheca 33 by this step surface with the gear edge of turning up of the rear end setting of piston sleeve 38, when pegging graft with tool joint pin, this piston sleeve is pushed backward by the housing of tool joint pin and final depressurization, realize the perforation between the two ends of fluid passage of the second valve body.
As shown in Figure 4, when described tool joint pin and female joint grafting, described the first valve body inserts the second valve body and pushes described piston sleeve to the rear of female joint from the front end of the second valve body, thereby realize the releasing to the sealing of female joint, meanwhile, described the second spool pushes the first spool to the rear of tool joint pin, thereby realizes the releasing to the sealing of tool joint pin, has just realized the conducting of the matrix at the two place after the sealing separately of male and female joint is all removed by the other side.
In other embodiment of adapter assembly of the present invention, outer the turning edge of the link rear end of the female joint described in the embodiment 1 of above-mentioned adapter assembly can also replace with block, in such cases, require block can not seal the rear port of fixing part completely, link can adopt solid construction.
Claims (9)
1. floating type female joint, this joint be take front end as bayonet end, comprise valve body and be assemblied in the spool in the fluid passage of valve body, it is characterized in that, described valve body comprises the fixing part being fixedly assembled together for the installation matrix with corresponding and is assemblied in the float portion of fixing part front end, spool is located in float portion and in the direction vertical with fore-and-aft direction and float portion Anti-moving coordinates, the movement backward of float portion block spool, the rear end Screw assembly of spool has link, the rear end of described link passes the fixing part of valve body backward, thereby the rear end of described fixing part outer the turn edge block set with link rear end coordinates the fixing part of valve body and float portion linked together, between the outer circumferential face of the part in fixing part of link and the internal face of fixing part, there is flying height, between the ear end face of the float portion of valve body and the front-end face of fixing part, by end-face seal ring slipper seal, coordinate, elastic seal ring is inlaid in corresponding seal groove, described seal groove is opened on the ear end face of float portion of valve body or on the front-end face of the fixing part of valve body.
2. floating type female joint according to claim 1, it is characterized in that, the float portion of valve body comprises and one in front and one in back linking together and protheca and the rear cover of cooperation sealed to each other, the rear end of described rear cover has an assembly wall, the fluid via hole connecting before and after assembly wall is provided with, the rear end of spool is backward through being spirally connected with link after described assembly wall, described float portion by assembly wall be located at step surface between the two ends of spool coordinate the movement backward of block spool.
3. floating type female joint according to claim 1, is characterized in that, the rear end of described link has the sleeve sections of an open rearward end, and the perisporium of this sleeve sections is provided with the through hole that is communicated with its opening and described fluid passage.
4. according to the floating type female joint described in claim 1-3 any one, it is characterized in that, the port of the bayonet end of described valve body is horn mouth.
5. adapter assembly, comprise public affairs, female joint, public, it is front end that its bayonet end is separately take respectively in female joint, tool joint pin comprises the first valve body and along fore-and-aft direction activity, is assemblied in the first spool in the fluid passage of the first valve body, female joint comprises the second valve body and is assemblied in the second spool in the fluid passage of the second valve body, it is characterized in that, described the second valve body comprises the fixing part being fixedly assembled together for the installation matrix with corresponding and is assemblied in the float portion of fixing part front end, the second spool is located in float portion and in the direction vertical with fore-and-aft direction and float portion Anti-moving coordinates, the movement backward of float portion block the second spool, the rear end Screw assembly of the second spool has link, described link be take its one end near the rear end of the second valve body as rear end, the rear end of link passes the fixing part of the second valve body backward, thereby the rear end of described fixing part outer the turn edge block set with link rear end coordinates the fixing part of the second valve body and float portion is assembled together, between the outer circumferential face of the part in fixing part of link and the internal face of fixing part, there is flying height, between the ear end face of the float portion of the second valve body and the front-end face of fixing part, by end-face seal ring slipper seal, coordinate, elastic seal ring is inlaid in corresponding seal groove, described seal groove is opened on the ear end face of float portion of the second valve body or on the front-end face of the fixing part of the second valve body.
6. adapter assembly according to claim 5, it is characterized in that, the float portion of the second valve body comprises and one in front and one in back linking together and protheca and the rear cover of cooperation sealed to each other, the rear end of described rear cover has an assembly wall, the fluid via hole connecting before and after assembly wall is provided with, the rear end of the second spool is backward through being spirally connected with link after described assembly wall, and described float portion coordinates the movement backward of block the second spool by assembly wall with the step surface being located between the two ends of the second spool.
7. adapter assembly according to claim 5, is characterized in that, the rear end of described link has the sleeve sections of an open rearward end, and the perisporium of this sleeve sections is provided with the through hole of the fluid passage that is communicated with its opening and the second valve body.
8. adapter assembly according to claim 5, it is characterized in that, described the first spool is hollow-core construction and has seal spool section and the spool guide section one in front and one in back arranging, the critical place of seal spool section and spool guide section forms a step surface towards tool joint pin the place ahead, the fluid passage of the first valve body comprises the valve seal section setting gradually from front to back, changeover portion and valve body guide section, three's internal diameter increases successively, spool guide section coordinates with valve body guide section guiding along fore-and-aft direction, between changeover portion and valve body guide section, there is the step surface that coordinates block the first spool to move forward with step surface on the first spool, spool guide section leads and coordinates on fore-and-aft direction with valve body guide section, work as public affairs, when female joint is separated, front end outer circumferential face and the valve seal section of seal spool section are sealed and matched, on the first spool, corresponding described changeover portion place offers penetrating outlet.
9. according to the adapter assembly described in claim 5-8 any one, it is characterized in that, the port of the bayonet end of described the second valve body is horn mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190441.3A CN102679075B (en) | 2012-06-11 | 2012-06-11 | Floating female joint and joint assembly using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190441.3A CN102679075B (en) | 2012-06-11 | 2012-06-11 | Floating female joint and joint assembly using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102679075A CN102679075A (en) | 2012-09-19 |
| CN102679075B true CN102679075B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210190441.3A Active CN102679075B (en) | 2012-06-11 | 2012-06-11 | Floating female joint and joint assembly using same |
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| CN (1) | CN102679075B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567511A (en) * | 2014-12-16 | 2015-04-29 | 中航光电科技股份有限公司 | Heat exchanger |
| CN105953008B (en) * | 2016-06-24 | 2019-02-15 | 中航光电科技股份有限公司 | Female connector and the rapid connector component for using the female connector |
| CN109140085A (en) * | 2017-06-28 | 2019-01-04 | 中航光电科技股份有限公司 | One kind fluidly connecting device assembly and its terminative connector |
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| US5144979A (en) * | 1990-02-19 | 1992-09-08 | Nitto Kohki Co., Ltd. | Tube coupler and a valve for a tube coupler |
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|---|---|
| CN102679075A (en) | 2012-09-19 |
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