Fluid connector

Abstract

The utility model provides a fluid connector which comprises a connecting plug, and the connecting plug comprises a body, a valve element assembly and a driving structure. The main body has an accommodating cavity. The valve element assembly is rotationally arranged in the containing cavity so as to be switched between a closed state and an open state. The driving structure is arranged on the main body and comprises a switch shell, a first positioning assembly, a second positioning assembly, a third positioning assembly and a connecting assembly. The switch shell is connected to the valve element assembly through the connecting assembly and can drive the valve element assembly to rotate in the containing cavity. The first positioning assembly can lock or unlock the switch shell in the first direction. And the second positioning group can lock or unlock the switch shell in the second direction. A groove body matched with the third positioning assembly is formed in the switch shell, the switch shell drives the valve element assembly to rotate and enables the groove body to rotate along the third positioning assembly until the switch shell is locked at the preset position of the main body, and the groove body is separated from the third positioning assembly and pushes one end of the third positioning assembly out of the main body.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a fluid connector. Background Art

[0002] The ball valve is a commonly used valve, and its name comes from the closing and opening part of the valve - the ball. When the ball is rotated 90°, the inlet and outlet of the ball valve will be closed or opened. The ball valve has the advantages of rapid switching, good sealing performance, strong wear resistance, long service life, easy operation, etc., and is widely used in various fluid pipeline systems. It is widely used in the fields of industry, municipal administration, petrochemical industry, etc. The ball valve can be used to control the flow rate and pressure of water, such as for controlling the transportation of oil products and chemicals, for controlling the transportation of gases and liquids, or for controlling the operation of mechanical equipment, etc.

[0003] Most of the common ball valves on the market are of single ball valve structure, and are generally directly installed on the pipeline for application, and can be simply opened and closed. However, in some occasions, repeated disconnection and connection are often required. In the prior art, a fluid connector is generally connected to the pipeline to achieve the disconnection, connection of the pipeline and the sealing of the fluid, etc. However, the existing fluid connectors often require a more precise structure, accompanied by high costs and high maintenance requirements. The ball valve product can be quickly connected and disconnected, the sealing structure is mature and simple, the cost is low, and the maintenance is simple. Combining the ball valve in the fluid connector has become a new direction of choice. In the existing ball valve products, it is difficult to quickly connect and disconnect, and most of them lack anti-fooling and locking structures. In actual applications, unnecessary losses are often caused by misoperations.

[0004] Therefore, it is necessary to provide a fluid connector that can use the ball valve structure to achieve the opening and closing of the pipeline, as well as the disconnection and connection of the pipeline. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fluid connector that can use the ball valve structure to achieve the opening and closing of the pipeline, as well as the disconnection and connection of the pipeline.

[0006] To achieve the above purpose, the utility model provides a fluid connector, including a connection plug, and the connection plug includes:

[0007] A main body having an accommodation cavity;

[0008] A valve core assembly rotatably arranged in the accommodation cavity to switch between a closed state and an open state;

[0009] The driving structure is disposed on the main body and includes a switch housing, a first positioning component, a second positioning component, a third positioning component, and a connecting component. The switch housing is connected to the valve core component by the connecting component and can drive the valve core component to rotate in the accommodating cavity to switch between a closed state and an open state; the first positioning component is elastically disposed in the switch housing and can lock the switch housing in a first direction, and pressing the first positioning component unlocks the switch housing in the first direction; the second positioning component is elastically disposed in the main body and can lock the switch housing in a second direction, and pressing the second positioning component unlocks the switch housing in the second direction; a groove body cooperating with the third positioning component is formed in the switch housing. The switch housing drives the valve core component to rotate and makes the groove body rotate along the third positioning component until the switch housing is locked at a preset position of the main body. The groove body disengages from the third positioning component and pushes one end of the third positioning component out of the main body.

[0010] After adopting the above technical solutions, the fluid connector of the present utility model includes a connecting plug, and the connecting plug includes a main body, a valve core component, and a driving structure. The main body has an accommodating cavity. The valve core component is rotatably disposed in the accommodating cavity to switch between a closed state and an open state. In the closed state, liquid cannot pass through the connecting plug, and in the open state, liquid can flow through the connecting plug. The driving structure is disposed on the main body and includes a switch housing, a first positioning component, a second positioning component, a third positioning component, and a connecting component. The switch housing is connected to the valve core component by the connecting component and can drive the valve core component to rotate in the accommodating cavity to switch between a closed state and an open state. The first positioning component can lock the switch housing in a first direction, which can play an anti-fooling role, and pressing the first positioning component unlocks the switch housing in the first direction. The second positioning component can lock the switch housing in a second direction, which can play an anti-fooling role, and pressing the second positioning component unlocks the switch housing in the second direction. A groove body cooperating with the third positioning component is formed in the switch housing. The switch housing drives the valve core component to rotate and makes the groove body rotate along the third positioning component until the switch housing is locked at a preset position of the main body. The groove body disengages from the third positioning component and pushes one end of the third positioning component out of the main body to cooperate with another connecting plug. The fluid connector of the present utility model has a stable product structure. The two connecting plugs connected to each other can be individually operated for switching, and the locking and unlocking are convenient. Moreover, it has an anti-fooling function, can be quickly connected and disconnected, and is convenient to operate.

[0011] Preferably, the first positioning component includes a first positioning pin and a first elastic member. The first positioning pin is elastically mounted in the switch housing by means of the first elastic member. A first locking member is provided between the first positioning pin and the main body. The first positioning pin is provided with a first groove along its circumferential direction. A plurality of first positioning grooves are provided on the surface of the main body close to the switch housing. The first locking member is located in the first positioning groove and abuts against the first positioning pin to lock the switch housing in the first direction. Move the first positioning pin so that the first locking member enters the first groove, and the switch housing and the main body are unlocked in the first direction.

[0012] Preferably, the switch housing is provided with a first installation cavity for installing the first positioning component. The first elastic member is installed in the first installation cavity. The first positioning pin is installed in the first installation cavity and one end abuts against the first elastic member, and the other end extends out of the switch housing. The switch housing is further provided with a first through hole communicating with the first installation cavity. One side of the first locking member is located in the first through hole, and the other side is located in the first positioning groove to lock the switch housing in the first direction. One side of the locking member is located in the first groove, and the other side is located in the first through hole to unlock the switch housing in the first direction.

[0013] Preferably, the switch housing is provided with a convex portion protruding therefrom, and a first connection hole is penetrated through the convex portion. The main body is provided with an installation portion for installing the switch housing, and an installation hole for the convex portion to pass through is provided on the installation portion. The valve core assembly includes a sphere, and an installation groove for cooperating with the convex portion is provided on the sphere. The convex portion passes through the installation hole and is installed in the installation groove. A second connection hole is provided in the installation groove. One end of the connection component is installed in the first connection hole and the other end is connected to the second connection hole.

[0014] Preferably, a channel for flowing liquid is penetrated through the sphere. Rotate the switch housing to drive the sphere to rotate in the accommodation cavity to open and close the channel.

[0015] Preferably, a second installation cavity for installing the second positioning component is provided on the end surface of the housing. The second positioning component includes a second positioning pin, a second elastic member and a second locking member. The second positioning pin is elastically mounted in the second installation cavity by means of the second elastic member, and one end of the second positioning pin can protrude from the end surface of the housing. The second positioning pin is provided with a second groove along its circumferential direction. A second positioning groove is provided on the switch housing. The main body is further provided with a second through hole communicating with the second installation cavity. One end of the second locking member is located in the second through hole, and the other end of the second locking member is located in the second positioning groove to lock the switch housing in the second direction. One end of the second locking member is located in the second through hole, and the other end is located in the second groove to unlock the switch housing in the second direction.

[0016] Preferably, a third installation cavity for installing a third positioning component is further formed in the main body; the third positioning component includes a third positioning pin and a third elastic member. At one end of the third installation cavity away from the accommodation cavity, a first step portion is provided. The third elastic member is installed in the third installation cavity and one end thereof abuts against the first step portion. A second step portion is provided on the third positioning pin. The third positioning pin is installed in the third installation cavity and passes through the third elastic member so that the other end of the third elastic member abuts against the second step portion, and one end of the third positioning pin elastically contacts the groove body in the accommodation cavity.

[0017] Preferably, a positioning hole cooperating with the third positioning component is formed in the end face of the main body. The two connection plugs are inserted into each other and unlock the switch housing. By rotating the switch housing, the valve core component is opened, and the third positioning pin is pushed out of the main body and extends into the positioning hole of another main body.

[0018] Preferably, a first sealing member protruding out of the accommodation cavity is provided at one end of the accommodation cavity close to the end face. A buckle component and a clamping groove component are provided on the end face of the main body. The buckle component includes a plurality of buckle members, and the clamping groove component includes a plurality of clamping grooves and a plurality of locking grooves; the two connection plugs are inserted into each other so that the buckle members are buckled into the corresponding clamping grooves on another main body. Rotate one of the connection plugs to lock the buckle members in the corresponding locking grooves, and make the two first sealing members fit together.

[0019] Preferably, the connection plug further includes an adapter component, which includes an adapter base and a base housing. One end of the adapter base is hermetically installed in the accommodation cavity. The other end of the adapter base is connected with the base housing, and a connecting circlip and a second sealing member are provided between the base housing and the adapter base. The base housing can rotate 360° infinitely relative to the adapter base by means of the connecting circlip. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a structural diagram of a fluid connector provided by an embodiment of the present invention.

[0022] Figure 2 is Figure 1 a structural diagram of the connection plug in

[0023] Figure 3 is Figure 2 a cross-sectional view at an angle.

[0024] Figure 4Yes Figure 2 Partial sectional view from another angle.

[0025] Figure 5 Yes Figure 2 Exploded view of the main body, spool assembly and drive structure in

[0026] Figure 6 Yes Figure 5 Structural diagram of the main body in

[0027] Figure 7 Yes Figure 6 Sectional view of

[0028] Figure 8 Yes Figure 2 Exploded view of the switch housing and spool assembly in

[0029] Figure 9 Yes Figure 8 Structural diagram of the switch housing in

[0030] Figure 10 Yes Figure 2 Structural diagram of the adapter assembly in

[0031] Explanation of reference numerals:

[0032] 1000, fluid connector; 100, connection plug; 101, drive structure; 102, sealing ring;

[0033] 10, main body; 11, accommodation cavity; 12, buckle assembly; 121, buckle member; 13, card slot assembly; 131, engagement groove; 132, locking groove; 14, positioning hole; 15, second installation cavity; 16, third installation cavity; 161, first step portion; 17, installation portion; 171, first positioning groove; 172, installation hole; 173, second through hole; 18, sealing groove; 19, connection portion; 110, first sealing member;

[0034] 20, spool assembly; 21, sphere; 211, channel; 212, installation groove; 213, second connection hole; 22, sealing gasket;

[0035] 30, switch housing; 31, convex portion; 32, first connection hole; 33, groove body; 34, first through hole; 35, second positioning groove; 36, first installation cavity;

[0036] 40, first positioning assembly; 41, first positioning pin; 411, first groove; 42, first elastic member; 43, first locking member;

[0037] 50, second positioning assembly; 51, second positioning pin; 511, second groove; 52, second elastic member; 53, second locking member;

[0038] 60. Third positioning component; 61. Third positioning pin; 611. Second step portion; 62. Third elastic member;

[0039] 70. Connection component;

[0040] 80. Adapter component; 81. Adapter base; 82. Base housing; 83. Connection circlip; 84. Second seal. Detailed implementation manner

[0041] In order to elaborate in detail the technical content and structural features of the present utility model, the following further description is made in conjunction with the implementation manners and with reference to the drawings.

[0042] Please refer to Figures 1 to 5, the present utility model provides a fluid connector 1000, including a connection plug 100. The connection plug 100 can be inserted and connected with another connection plug 100 to complete the docking of pipelines. The docking of the two connection plugs 100 can achieve the rapid disconnection and connection of pipelines, and at the same time can achieve the rapid opening and closing of pipelines. The connection plug 100 includes a main body 10, a valve core assembly 20 and a driving structure 101. The main body 10 has a receiving cavity 11. The valve core assembly 20 is rotatably arranged in the receiving cavity 11 to switch between a closed state and an open state. The driving structure 101 is arranged on the main body 10, including a switch housing 30, a first positioning component 40, a second positioning component 50, a third positioning component 60 and a connection component 70. Among them, the switch housing 30 is connected to the valve core assembly 20 by the connection component 70 and can drive the valve core assembly 20 to rotate in the receiving cavity 11 to switch between a closed state and an open state. The first positioning component 40 is elastically arranged in the switch housing 30 and can lock the switch housing 30 in a first direction. Press the first positioning component 40 to unlock the switch housing 30 in the first direction. The second positioning component 50 is elastically arranged in the main body 10 and can lock the switch housing 30 in a second direction. Press the second positioning component 50 to unlock the switch housing 30 in the second direction. The first positioning component 40 and the second positioning component 50 can play an anti-mistake role, prevent misoperation and ensure the stability of the product. The housing can be operated only when both the first positioning component 40 and the second positioning component 50 are pressed. A groove 33 cooperating with the third positioning component 60 is formed in the switch housing 30. The switch housing 30 drives the valve core assembly 20 to rotate and makes the groove 33 rotate along the third positioning component 60 until the switch housing 30 is locked at a preset position of the main body 10. The groove 33 disengages from the third positioning component 60 and pushes one end of the third positioning component 60 out of the main body 10. The preset position is a position on the main body 10 where a first positioning groove 171 is provided to position the switch housing 30 to keep the valve core assembly 20 in an open state. The first direction is different from the second direction. The first direction can be the up-and-down direction between the main body 10 and the switch housing 30, and the second direction can be the clockwise or counterclockwise rotation direction between the main body 10 and the switch housing 30.

[0043] After adopting the above technical solution, the fluid connector 1000 of the present utility model includes a connection plug 100, and the connection plug 100 includes a main body 10, a valve core assembly 20, and a driving structure 101. The main body 10 has a receiving cavity 11. The valve core assembly 20 is rotatably disposed in the receiving cavity 11 to switch between a closed state and an open state. In the closed state, liquid cannot pass through the connection plug 100, and in the open state, liquid can flow through the connection plug 100. The driving structure 101 is disposed on the main body 10 and includes a switch housing 30, a first positioning component 40, a second positioning component 50, a third positioning component 60, and a connection component 70. The switch housing 30 is connected to the valve core assembly 20 by the connection component 70 and can drive the valve core assembly 20 to rotate in the receiving cavity 11 to switch between a closed state and an open state. The first positioning component 40 can lock the switch housing 30 in a first direction, which can play an anti-mistake role, and press the first positioning component 40 to unlock the switch housing 30 in the first direction. The second positioning component 50 can lock the switch housing 30 in a second direction, which can play an anti-mistake role, and press the second positioning component 50 to unlock the switch housing 30 in the second direction. A groove 33 cooperating with the third positioning component 60 is formed in the switch housing 30. The switch housing 30 drives the valve core assembly 20 to rotate and the groove 33 rotates along the third positioning component 60 until the switch housing 30 is locked at a preset position of the main body 10. The groove 33 disengages from the third positioning component 60 and pushes one end of the third positioning component 60 out of the main body 10 to cooperate with another connection plug 100. For the fluid connector 1000 of the present utility model, the product structure is stable, the two connection plugs 100 connected to each other can be individually switched, the locking and unlocking are convenient, and it has an anti-mistake function, can be quickly connected and disconnected, and is easy to operate.

[0044] Please refer to Figure 4 and Figure 5, in some alternative embodiments, the first positioning assembly 40 includes a first positioning pin 41 and a first elastic member 42. The first positioning pin 41 is elastically mounted in the switch housing 30 by means of the first elastic member 42, and a first locking member 43 is provided between the first positioning pin 41 and the main body 10. Exemplarily, the first locking member 43 may be a spherical steel ball or other metal ball or a spherical structure made of other materials. The first positioning pin 41 is provided with a first groove 411 along its circumferential direction, and a plurality of first positioning grooves 171 are provided on the surface of the main body 10 close to the switch housing 30. In this embodiment, the number of the first positioning grooves 171 is two, one for locking the switch housing 30 when the valve core assembly 20 is opened, and one for locking the switch housing 30 when the valve core assembly 20 is closed. Specifically, when the first locking member 43 is located in the first positioning groove 171 and abuts against the first positioning pin 41, the switch housing 30 can be locked in the first direction. When the first positioning pin 41 is moved so that the first locking member 43 enters the first groove 411, the switch housing 30 and the main body 10 are unlocked in the first direction.

[0045] Please refer to Figure 4 , Figure 5 and Figure 9 , in some alternative embodiments, the switch housing 30 is provided with a first installation cavity 36 for installing the first positioning assembly 40, and the first elastic member 42 is installed in the first installation cavity 36. The first positioning pin 41 is installed in the first installation cavity 36 with one end abuting against the first elastic member 42 and the other end extending out of the switch housing 30, so as to facilitate the pressing operation of the first positioning pin 41. At the same time, the pressed first positioning pin 41 can be reset by means of the first elastic member 42. Among them, a first through hole 34 communicating with the first installation cavity 36 is further provided on the switch housing 30. Specifically, when one side of the first locking member 43 is located in the first through hole 34 and the other side is located in the first positioning groove 171, the switch housing 30 can be locked in the first direction. When one side of the locking member is located in the first groove 411 and the other side is located in the first through hole 34, the switch housing 30 can be unlocked in the first direction.

[0046] Please refer to Figures 6 to 9, in some alternative embodiments, a convex portion 31 protrudes from the switch housing 30, and a first connection hole 32 is penetratingly formed in the convex portion 31. On the other hand, an installation portion 17 for installing the switch housing 30 is provided on the main body 10. An installation hole 172 through which the convex portion 31 can pass is formed in the installation portion 17. The convex portion 31 is installed in the installation hole 172, and a sealing ring 102 is provided between the convex portion 31 and the installation hole 172. A first positioning groove 171 is also formed in the installation portion 17 and is used to cooperate with the first locking member 43 to lock the switch housing 30 in a proper position on the installation portion 17. On the other hand, the valve core assembly 20 includes a sphere 21, and an installation groove 212 that cooperates with the convex portion 31 is formed in the sphere 21. The convex portion 31 passes through the installation hole 172 and is installed in the installation groove 212. A second connection hole 213 is formed in the installation groove 212. One end of the connection assembly 70 is installed in the first connection hole 32, and a sealing ring 102 is provided between the connection assembly 70 and the first connection hole 32. The other end of the connection assembly 70 is connected to the second connection hole 213. The switch housing 30 and the sphere 21 are linked and connected through the connection assembly 70, and the switch housing 30 is operated to drive the sphere 21 to rotate. Specifically, a channel 211 for flowing liquid penetrates through the sphere 21. The switch housing 30 is rotated to drive the sphere 21 to rotate in the accommodation cavity 11. When the channel 211 rotates to communicate with the accommodation cavity 11, the connection plug 100 is opened, and the fluid can pass through. When the switch housing 30 drives the sphere 21 to rotate until the channel 211 blocks the accommodation cavity 11, the connection plug 100 is closed, and the fluid cannot pass through. Among them, sealing gaskets 22 are provided on both sides of the sphere 21 in the accommodation cavity 11, and the sealing gaskets 22 are both hollow. The sealing gaskets 22 can reinforce the installation of the sphere 21 in the accommodation cavity 11, so that the sphere 21 can rotate more stably in the accommodation cavity 11, and the sphere 21 can be better opened and closed.

[0047] Please refer to Figures 4 to 6, in some alternative embodiments, a second mounting cavity 15 for mounting the second positioning component 50 is formed on the end face of the main body 10. The second positioning component 50 includes a second positioning pin 51, a second elastic member 52, and a second locking member 53. The second positioning pin 51 is elastically mounted in the second mounting cavity 15 by means of the second elastic member 52, and one end of the second positioning pin 51 can protrude from the end face of the main body 10. When the two connection plugs 100 are plugged together, the end faces of the cooperating main bodies 10 will press the protruding second positioning pins 51 of each other, thereby unlocking the switch housing 30 in the second direction. Among them, a second groove 511 is formed on the circumferential direction of the second positioning pin 51, a second positioning groove 35 is formed on the switch housing 30, and a second through hole 173 communicating with the second mounting cavity 15 is further formed on the main body 10. Specifically, when one end of the second locking member 53 is located in the second through hole 173 and the other end of the second locking member 53 is located in the second positioning groove 35, the switch housing 30 can be locked in the second direction. One end of the second locking member 53 is located in the second through hole 173 and the other end is located in the second groove 511 to unlock the switch housing 30 in the second direction. Exemplarily, the second locking member 53 can be a spherical steel ball or other metal ball or a spherical structure made of other materials.

[0048] Please refer to Figures 4 to 6 , in some alternative embodiments, a third mounting cavity 16 for mounting the third positioning component 60 is further formed on the main body 10. The third positioning component 60 includes a third positioning pin 61 and a third elastic member 62. Among them, a first step portion 161 is provided at one end of the third mounting cavity 16 away from the accommodating cavity 11, the third elastic member 62 is mounted in the third mounting cavity 16 and one end thereof abuts against the first step portion 161. On the other hand, a second step portion 611 is provided on the third positioning pin 61, the third positioning pin 61 is mounted in the third mounting cavity 16 and passes through the third elastic member 62 so that the other end of the third elastic member 62 abuts against the second step portion 611, and one end of the third positioning pin 61 elastically contacts the groove body 33 in the accommodating cavity 11. It can be understood that the third elastic member 62 can be installed first from the end close to the switch housing 30, and then the third positioning pin 61 can be installed. When the switch housing 30 rotates until the third positioning pin 61 disengages from the groove body 33, the switch housing 30 elastically extrudes the third positioning pin 61 out of the end face of the main body 10. However, under the action of the first step portion 161, the second step portion 611, and the third elastic member 62, the third positioning pin 61 will not disengage from the third mounting cavity 16.

[0049] Please refer to Figures 4 to 6, in some alternative embodiments, positioning holes 14 that cooperate with the third positioning pins 61 are provided on the end surface of the main body 10. When the two connection plugs 100 are inserted into each other and the switch housing 30 is unlocked, the valve core assembly 20 is opened by rotating the switch housing 30, and the third positioning pins 61 are pushed out of the main body 10 and extend into the positioning holes 14 of the other main body 10. It can be understood that the fluid connector 1000 of the present utility model includes two connection plugs 100 that cooperate with each other. The structures of the two connection plugs 100 are the same, and there is no need to set specific plugs and sockets, making the cooperation more convenient. When the switch housing 30 is rotated to open the valve core assembly 20, the third positioning pins 61 are pushed out of the main body 10 and at the same time extend into the positioning holes 14 on the end surface of the other main body 10, making the cooperation more stable.

[0050] Please refer to Figures 4 to 7 , in some alternative embodiments, a sealing groove 18 is provided at one end of the accommodation cavity 11 close to the end surface. A first sealing member 110 is installed in the sealing groove 18, and the first sealing member 110 is installed in the sealing groove 18 and one end protrudes out of the accommodation cavity 11. Among them, a snap component 12 and a slot component 13 are provided on the end surface of the main body 10. The snap component 12 includes a plurality of snap members 121, and the sizes of the plurality of snap members 121 can be different. The slot component 13 includes a plurality of engaging slots 131 and a plurality of locking slots 132. The sizes and structures of the plurality of engaging slots 131 are adapted to the corresponding snap members 121. The sizes and structures of the plurality of locking slots 132 are also adapted to the corresponding snap members 121. When the two connection plugs 100 are inserted into each other, the snap members 121 are snapped into the corresponding engaging slots 131 on the other main body 10, and one of the connection plugs 100 is rotated to lock the snap members 121 in the corresponding locking slots 132, and the two first sealing members 110 are brought into contact with each other. Thus, the sealed connection of the two connection plugs 100 is achieved, which is not only firmly connected but also has a good sealing effect.

[0051] Please refer to Figure 3 and Figure 10 , in some alternative embodiments, the connection plug 100 further includes an adapter assembly 80. The adapter assembly 80 includes an adapter base 81 and a base housing 82. One end of the adapter base 81 is connected to the connecting portion 19 in the accommodation cavity 11, and a sealing ring 102 is provided between the adapter base 81 and the main body 10 to make a sealed connection between the adapter base 81 and the main body 10. The other end of the adapter base 81 is connected with a base housing 82, and a connecting circlip 83 and a second sealing member 84 are provided between the base housing 82 and the adapter base 81. The base housing 82 can rotate 360° infinitely relative to the adapter base 81 by means of the connecting circlip 83, so as to avoid pipeline distortion when the product is rotationally connected, and the structural arrangement is reasonable. The second sealing member 84 makes a sealed arrangement between the adapter base 81 and the base housing 82.

[0052] As shown Figures 1 to 10 in the figure, the fluid connector 1000 of the present utility model comprises two mating connection plugs 100. The structures of the two connection plugs 100 are the same. There is no need to set specific plugs and sockets, which makes the mating more convenient and also saves costs. The connection plug 100 can also be used alone to switch the pipeline to control the flow of fluid. The connection plug 100 includes a main body 10, a valve core assembly 20 and a driving structure 101. The main body 10 has a receiving cavity 11. The valve core assembly 20 is rotatably arranged in the receiving cavity 11 to switch between a closed state and an open state. When in the closed state, liquid cannot pass through the connection plug 100. When in the open state, liquid can flow through the connection plug 100. The driving structure 101 is arranged on the main body 10 and includes a switch housing 30, a first positioning assembly 40, a second positioning assembly 50, a third positioning assembly 60 and a connection assembly 70. The switch housing 30 is connected to the valve core assembly 20 by the connection assembly 70 and can drive the valve core assembly 20 to rotate in the receiving cavity 11 to switch between a closed state and an open state. The first positioning assembly 40 can lock the switch housing 30 in a first direction, which can play an anti-mistake role. Press the first positioning assembly 40 to unlock the switch housing 30 in the first direction. The second positioning assembly 50 can lock the switch housing 30 in a second direction, which can play an anti-mistake role. Press the second positioning assembly 50 to unlock the switch housing 30 in the second direction. A groove 33 cooperating with the third positioning assembly 60 is formed in the switch housing 30. The switch housing 30 drives the valve core assembly 20 to rotate and the groove 33 rotates along the third positioning assembly 60 until the switch housing 30 is locked at a preset position of the main body 10. The groove 33 disengages from the third positioning assembly 60 and pushes one end of the third positioning assembly 60 out of the main body 10 to cooperate with another connection plug 100. For the fluid connector 1000 of the present utility model, the product structure is stable. The two interconnected connection plugs 100 can be individually switched, and the locking and unlocking are convenient. Moreover, it has an anti-mistake function, can be quickly connected and disconnected, and is easy to operate.

[0053] The above-disclosed are only the preferred examples of the present utility model and cannot be used to limit the scope of rights of the present utility model. Therefore, all equivalent changes made according to the claims of the present utility model fall within the scope covered by the present utility model.

Claims

1. A fluid connector, comprising a connecting plug, characterized in that: The connecting plug comprises: A main body having a receiving cavity; A valve core assembly is rotatably disposed in the accommodating chamber to switch between a closed state and an open state; A driving structure is arranged on the main body, comprising a switch housing, a first positioning assembly, a second positioning assembly, a third positioning assembly and a connecting assembly, wherein the switch housing is connected to the valve core assembly by means of the connecting assembly and can drive the valve core assembly to rotate in the accommodating chamber to switch between a closed state and an open state; the first positioning assembly is elastically arranged in the switch housing and can lock the switch housing in a first direction, and the first positioning assembly is pressed to release the switch housing in the first direction; the second positioning assembly is elastically arranged in the main body and can lock the switch housing in a second direction, and the second positioning assembly is pressed to release the switch housing in the second direction; a groove body cooperating with the third positioning assembly is provided in the switch housing, the switch housing drives the valve core assembly to rotate and causes the groove body to rotate along the third positioning assembly until the switch housing is locked at a preset position of the main body, and the groove body disengages from the third positioning assembly and pushes one end of the third positioning assembly out of the main body.

2. The fluid connector according to claim 1, characterized in that: The first positioning assembly includes a first positioning pin and a first elastic member, the first positioning pin is elastically installed in the switch housing by means of the first elastic member, a first locking member is arranged between the first positioning pin and the main body, the first positioning pin is provided with a first groove along its circumference, a plurality of first positioning grooves are provided on a surface of the main body close to the switch housing, the first locking member is located in the first positioning groove and abuts against the first positioning pin to lock the switch housing in the first direction; The first positioning pin is moved to allow the first locking member to enter the first groove, and the switch housing and the main body are released in the first direction.

3. The fluid connector according to claim 2, characterized in that: The switch housing is provided with a first installation cavity for installing the first positioning assembly, the first elastic member is installed in the first installation cavity, the first positioning pin is installed in the first installation cavity and one end of the first positioning pin abuts against the first elastic member, and the other end extends out of the switch housing; the switch housing is also provided with a first through hole connected to the first installation cavity, one side of the first locking member is located in the first through hole, and the other side is located in the first positioning groove to lock the switch housing in the first direction; one side of the locking member is located in the first groove, and the other side is located in the first through hole to release the switch housing in the first direction.

4. The fluid connector according to claim 1, characterized in that: The switch housing is provided with a convex portion extending therefrom, and the convex portion is provided with a first connecting hole extending therethrough; the main body is provided with a mounting portion for mounting the switch housing, and the mounting portion is provided with a mounting hole for the convex portion to pass through; the valve core assembly includes a sphere, and the sphere is provided with a mounting groove matching the convex portion, the convex portion passes through the mounting hole and is installed in the mounting groove, a second connecting hole is provided in the mounting groove, and one end of the connecting assembly is installed in the first connecting hole and the other end is connected to the second connecting hole.

5. The fluid connector according to claim 4, characterized in that: The sphere is provided with a channel for circulating liquid, and the switch housing is rotated to drive the sphere to rotate in the accommodating cavity to open and close the channel.

6. The fluid connector according to claim 1, characterized in that: A second mounting cavity for mounting the second positioning assembly is provided on the end surface of the housing, the second positioning assembly comprises a second positioning pin, a second elastic member and a second locking member, the second positioning pin is elastically mounted in the second mounting cavity by means of the second elastic member, and one end of the second positioning pin can protrude out of the end surface of the housing; a second groove is provided along the circumference of the second positioning pin, a second positioning groove is provided on the switch housing, and a second through hole connected to the second mounting cavity is also provided on the main body; one end of the second locking member is located in the second through hole, and the other end of the second locking member is located in the second positioning groove to lock the switch housing in the second direction; One end of the second locking member is located in the second through hole, and the other end is located in the second groove to release the switch housing in the second direction.

7. The fluid connector according to claim 1, characterized in that: The main body is also provided with a third installation cavity for installing the third positioning assembly; the third positioning assembly includes a third positioning pin and a third elastic member, a first step portion is provided at one end of the third installation cavity away from the accommodating cavity, the third elastic member is installed in the third installation cavity and one end abuts against the first step portion, a second step portion is provided on the third positioning pin, the third positioning pin is installed in the third installation cavity and passes through the third elastic member so that the other end of the third elastic member abuts against the second step portion, and one end of the third positioning pin elastically contacts the slot body in the accommodating cavity.

8. The fluid connector according to claim 7, characterized in that: A positioning hole cooperating with the third positioning assembly is provided on the end surface of the main body, and the two connecting plugs are inserted into each other and release the switch housing. The valve core assembly is opened by rotating the switch housing, and the third positioning pin is pushed out of the main body and extends into the positioning hole of the other main body.

9. The fluid connector according to claim 1, characterized in that: A first sealing member protruding out of the accommodating cavity is provided at one end of the accommodating cavity close to the end surface, and a buckle assembly and a slot assembly are provided on the end surface of the main body, the buckle assembly includes a plurality of buckles, and the slot assembly includes a plurality of engaging grooves and a plurality of locking grooves; the two connecting plugs are plugged into each other so that the buckles are buckled into the corresponding engaging grooves on the other main body, and one of the connecting plugs is rotated so that the buckles are locked in the corresponding locking grooves, and the two first sealing members are fitted to each other.

10. The fluid connector according to claim 1, characterized in that: The connecting plug also includes an adapter assembly, which includes an adapter base and a base shell. One end of the adapter base is sealingly installed in the accommodating cavity, and the other end of the adapter base is connected to the base shell. A connecting clip and a second sealing member are provided between the base shell and the adapter base, and the connecting clip is used to enable the base shell to rotate infinitely 360° relative to the adapter base.

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