Fluid connector

Abstract

The utility model discloses a fluid connector, which comprises a shell, the shell comprises a butt joint surface, a lock hole and a fluid channel which extends along the front-back direction and penetrates through the butt joint surface, and the butt joint surface is positioned at the front end of the shell and is in butt joint with a complementary connector; the locking piece is accommodated in the lock hole and moves between a locking position and an unlocking position; when the fluid connector is in butt joint with the complementary connector, the complementary connector rotates relative to the fluid connector in the first direction and pushes the locking piece to enable the locking piece to move in the lock hole, the shell limits the central axis of the butt joint complementary connector, and the first direction is defined to rotate relative to the central axis. When the locking piece is located at the unlocking position, the locking piece is used for allowing the valve element to rotate from the closing position to the opening position, at the moment, the situation that the valve element rotates from the closing position to the opening position due to the fact that the locking piece does not move in place is avoided, and fluid leakage is avoided; when the locking piece is located at the unlocking position, the locking piece can also stop the complementary connector from rotating relative to the fluid connector.

Description

Technical field

[0001] The utility model relates to a fluid connector, in particular to a fluid connector suitable for fluid transmission. [Background Technology]

[0002] The fluid connector connects or disconnects with the complementary connector to connect or disconnect the fluid flow in the fluid channel. An existing fluid connector CN202321977845.7 includes a housing 1 whose front end can be axially docked with the housing of the adapter connector. The front end face of the housing 1 is provided with a first blind hole 6 and a second blind hole 7 extending in the axial direction. The unlocking guide rod 8 is located in the first blind hole 6, and the locking guide rod 9 is located in the second blind hole 7. The unlocking guide rod 8 has a locking position and an unlocking position. When in the locking position, the front end of the unlocking guide rod 8 extends out of the first blind hole 6. The first blind hole 6 is provided in the first blind hole 6, and the valve stem 4 is kept in the closed position, preventing the valve stem 4 from rotating from the closed position to the open position. When the adapter connector is docked with the housing and in the unlocked position, the front end of the unlocking guide rod 8 retracts into the first blind hole 6, and the ball 5 can move toward the unlocking guide rod 8 and disengage the locking groove 17. The valve stem 4 and the ball 5 are unlocked, allowing the valve stem 4 to rotate from the closed position to the open position. The locking guide rod 9 has a first position in which the front end extends out of the second blind hole 7 and a second position in which it is retracted into the second blind hole 7. The locking guide rod 9 can move freely between the first position and the second position. The connector and the adapter connector are connected and locked by relative rotation of the housing. When the connector and the adapter connector are plugged into place, the locking guide rod 9 corresponds to the clearance groove 12 of the adapter housing, and the locking guide rod 9 can be maintained in the first position. Only when the locking guide rod 9 can be moved from the first position to the second position can the anti-rotation fit between the locking guide rod 9 and the clearance groove 12 be released, that is, the connector and the adapter connector can be separated.

[0003] The above structure has the following problems:

[0004] 1. When the connector and the adapter connector are plugged into each other but not rotated into place, the unlocking guide rod has moved to the unlocking position, and the ball can move toward the unlocking guide rod and disengage from the locking groove. The valve stem and the ball are unlocked, allowing the valve stem to rotate from the closed position to the open position. At this time, if the valve stem is manually rotated, fluid leakage is likely to occur because the connector and the adapter connector have not been rotated into place. In addition, rotating the valve stem at this time will cause the locking guide rod to hit the complementary connector, which is likely to damage the locking guide rod.

[0005] Second, the unlocking guide rod unlocks the valve stem. The rotation of the valve stem causes the locking guide rod to enter the clearance groove of the adapter housing to prevent the adapter housing from rotating when the valve body is opened. The valve stem is unlocked and the adapter housing is prevented from rotating by two structural components. There are many parts and the structure is complicated.

[0006] Therefore, it is necessary to design a new fluid connector to overcome the above problems. [Utility Model Content]

[0007] In response to the problems faced by the background technology, the purpose of the invention is to provide a fluid connector that is accommodated in a locking hole through a locking piece and moves between a locked position and an unlocked position. When the fluid connector is docked with a complementary connector, the complementary connector rotates relative to the fluid connector and pushes the locking piece to move the locking piece in the locking hole; when the locking piece is in the unlocked position, the locking piece is used to allow the valve core to rotate from a closed position to an open position and prevent the complementary connector from rotating relative to the fluid connector, thereby avoiding fluid leakage.

[0008] In order to achieve the above purpose, the utility model adopts the following technical means:

[0009] 14. The fluid connector of claim 13, wherein the locking member is configured to engage the first and second end portions of the valve core and engage the second and second end portions of the valve core, wherein the locking member is configured to engage the first and second end portions of the valve core, wherein the locking member is configured to engage the first and second end portions of the valve core, wherein the locking member is configured to engage the first and second end portions of the valve core, wherein the locking member is configured to engage the first and second end portions of the valve core, wherein the locking member is configured to engage the first and second end portions of the valve core, wherein the locking member is configured to engage the first and second end portions of the valve core,

[0010] Furthermore, it also includes a snap-on portion, the complementary connector is provided with a pushing portion, the shell includes a matching portion located in the locking hole, the locking member includes an abutting portion, a locking portion located behind the abutting portion, and a fulcrum located between the abutting portion and the locking portion, the fulcrum abuts the matching portion, and before the fluid connector is docked with the complementary connector, the locking portion and the snap-on portion are snapped together, and when the fluid connector is docked with the complementary connector, the abutting portion is accommodated in the complementary connector, and as the complementary connector rotates relative to the fluid connector in a first direction, the pushing portion pushes the abutting portion to move, and the locking portion rotates in a second direction until the locking portion is disengaged from the snap-on portion, defining a rotation relative to the fulcrum in the second direction.

[0011] Furthermore, it also includes a driving part, which includes a pull part and a connecting part. The two ends of the connecting part are respectively fixedly connected to the pull part and the valve core, and the valve core is driven to rotate by the rotation of the pull part. The locking part also includes a through groove, and the connecting part passes through the through groove. The pull part includes a buckling part, the buckling part is a buckling groove, and the locking part is a locking protrusion.

[0012] Furthermore, the locking member also includes a through slot, and the shell includes a limiting portion located in the lock hole, which protrudes from the bottom wall of the lock hole in a direction away from the central axis and passes through the through slot. The limiting portion is provided with a stopping surface and a notch, and the stopping surface abuts the inner wall of the through slot to prevent the locking member from rotating relative to the limiting portion, and the locking portion is accommodated in the notch.

[0013] Furthermore, it also includes an elastic part, the shell includes a rocking part located in the lock hole, the rocking part includes a fixed part located in the through groove and a matching part integrally connected to the fixed part, the fixed part is assembled and fixed with the limiting part, the fulcrum is close to the central axis relative to the matching part, the elastic part is close to the central axis relative to the locking part, and the elastic part abuts the locking part.

[0014] Furthermore, the pushing portion is inclined from close to the central axis to away from the central axis in a direction opposite to the first direction, and when the fluid connector is docked with the complementary connector, the pushing portion pushes the abutting portion to move in the second direction.

[0015] Furthermore, it also includes a pressing portion, and the locking member also includes a crimping portion located behind the fulcrum, the pushing portion is inclined from front to rear along the opposite direction of the first direction, and the complementary connector also includes a stop portion connected to the pushing portion. When the fluid connector is docked with the complementary connector, the pushing portion pushes the abutting portion to move backward, and the crimping portion moves backward at the same time until the abutting portion abuts the stop portion, which is used to prevent the complementary connector from continuing to rotate relative to the fluid connector along the first direction. The pressing portion abuts the crimping portion, pushing the crimping portion to move along the second direction, and the crimping portion drives the locking portion to move along the second direction until the locking portion is disengaged from the snapping portion.

[0016] Furthermore, it also includes a pressing part and a button accommodated in the pulling part, the pressing part includes a main body, an elastic arm bent from the main body, a clamping part bent from the main body and a pressing part bent from the main body toward the center axis, the end of the elastic arm away from the main body is clamped in the pulling part, the button includes a snapping part, the snapping part and the clamping part cooperate with each other, the button is pressed forward, the button drives the clamping part, the pressing part and the main body to move forward, and at the same time, the button drives the end of the elastic arm connected to the main body to elastically displace forward, the pressing part abuts the crimping part, and pushes the crimping part to move along the second direction; when the button is released, the end of the elastic arm connected to the main body elastically rebounds backward, driving the clamping part, the pressing part and the main body to move backward.

[0017] Furthermore, it also includes a snap-fitting portion, the complementary connector is provided with a pushing portion, the shell includes a rocking piece located in the locking hole, the locking piece includes an abutting portion, a locking portion located behind the abutting portion, and a fulcrum located between the abutting portion and the locking portion, the fulcrum abuts the rocking piece, and before the fluid connector is docked with the complementary connector, the rocking piece abuts the fulcrum, and the locking portion and the snap-fitting portion are snapped together. When the fluid connector and the complementary connector are docked, the abutting portion is accommodated in the complementary connector, and as the complementary connector rotates in a first direction relative to the fluid connector, the pushing portion pushes the abutting portion to rotate in a second direction, and the locking portion rotates in the second direction until the locking portion is disengaged from the snap-fitting portion, defining a rotation relative to the fulcrum in the second direction.

[0018] Furthermore, it also includes a driving member, which is fixed to the valve core, the driving member includes a snap-fitting portion and a stopping portion connected to the snap-fitting portion, the abutting portion includes a first abutting block and a second abutting block, and the complementary connector includes a stop portion. When the fluid connector is docked with the complementary connector, the complementary connector rotates relative to the fluid connector in a first direction, the pushing portion is located between the first abutting block and the second abutting block, the pushing portion pushes the first abutting block to rotate in the second direction, and the second abutting block rotates accordingly in the second direction, and the locking portion rotates in the second direction until the locking portion is disengaged from the snap-fitting portion. At this time, the second abutting block is located between the pushing portion and the stop portion, and the locking member is in the unlocked position. The rotation of the driving member drives the valve core from the closed position to the open position, and the stopping portion stops the locking member from rotating in the opposite direction of the second direction, and the second abutting block stops the stopping portion from rotating in the first direction and stops the pushing portion from rotating in the opposite direction of the first direction.

[0019] Furthermore, it also includes a driving member, the driving member and the valve core are fixed to each other, and the valve core is driven to rotate by the rotation of the driving member, the driving member includes a snap-on portion and a stopping portion connected to the snap-on portion, and the locking member includes a locking portion. Before the fluid connector is docked with the complementary connector, the snap-on portion and the locking portion are snapped with each other, and the locking member is maintained in the locked position; when the fluid connector is docked with the complementary connector, the locking portion moves away from the snap-on portion until the locking portion disengages from the snap-on portion. At this time, the locking member is in the unlocked position. After the driving member rotates, the stopping portion stops the locking portion to prevent the locking member from moving. The locking member stops the complementary connector from rotating relative to the fluid connector along a first direction and in the opposite direction of the first direction.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The locking member is received in the locking hole and moves between a locked position and an unlocked position. When the fluid connector and the complementary connector are docked, the complementary connector rotates relative to the fluid connector and pushes against the locking member, causing the locking member to move within the locking hole. When the locking member is in the unlocked position, the locking member is used to allow the valve core to rotate from the closed position to the open position. At this time, the valve core will not rotate from the closed position to the open position due to the locking member not being moved into place, thereby avoiding fluid leakage.

[0022] Second, when the locking member is in the unlocked position, the locking member can both allow the valve core to rotate from the closed position to the open position and prevent the complementary connector from rotating relative to the fluid connector.

Brief Description of the Drawings

[0023] Figure 1 This is an exploded view of the fluid connector according to the first embodiment of the present invention;

[0024] Figure 2 for Figure 1 Top view after assembly without the trigger and fasteners;

[0025] Figure 3 This is a perspective view of the fluid connector and the complementary connector according to the first embodiment of the present invention after docking, with the complementary connector not yet rotating;

[0026] Figure 4 for Figure 3 A top view of

[0027] Figure 5 for Figure 4 Sectional view along AA;

[0028] Figure 6 for Figure 4 Cross-sectional view along BB;

[0029] Figure 7 for Figure 4 Cross-sectional view along CC;

[0030] Figure 8 To correspond Figure 5 a cross-sectional view of a complementary connector in a position rotated relative to the fluid connector in a first direction until the pushing portion contacts the abutting portion;

[0031] Figure 9 To correspond Figure 7 a cross-sectional view of a complementary connector in a position rotated relative to the fluid connector in a first direction until the pushing portion contacts the abutting portion;

[0032] Figure 10 To correspond Figure 5 a cross-sectional view of a complementary connector in a position rotated relative to the fluid connector in a first direction until the locking member is in an unlocked position;

[0033] Figure 11 To correspond Figure 7 a cross-sectional view of a complementary connector in a position rotated relative to the fluid connector in a first direction until the locking member is in an unlocked position;

[0034] Figure 12 To correspond Figure 5A cross-sectional view of the valve core in the open position;

[0035] Figure 13 To correspond Figure 6 A cross-sectional view of the valve core in the open position;

[0036] Figure 14 This is an exploded view of a fluid connector according to a second embodiment of the present invention;

[0037] Figure 15 A partial sectional perspective view of the cooperation of the driving member, the pressing member, and the button of the fluid connector according to the second embodiment of the present invention;

[0038] Figure 16 A partial perspective cross-sectional view of a fluid connector and a complementary connector according to a second embodiment of the present invention after docking, with the complementary connector not yet rotating;

[0039] Figure 17 A three-dimensional partial cross-sectional view of the complementary connector according to the second embodiment of the present invention when the complementary connector is rotated relative to the fluid connector along the first direction until the pushing portion contacts the abutting portion;

[0040] Figure 18 It is a rear view of the complementary connector of the second embodiment of the present invention when it is rotated relative to the fluid connector along the first direction until the pushing portion contacts the abutting portion;

[0041] Figure 19 for Figure 18 Cross-sectional view along DD;

[0042] Figure 20 for Figure 18 Cross-sectional view along EE;

[0043] Figure 21 for Figure 18 Cross-sectional view along FF;

[0044] Figure 22 A three-dimensional partial cross-sectional view of the complementary connector according to the second embodiment of the present invention when the complementary connector is rotated relative to the fluid connector along the first direction until the abutting portion abuts against the first stop portion;

[0045] Figure 23 To correspond Figure 19 a cross-sectional view of a complementary connector in a position rotated relative to the fluid connector along a first direction until the abutment portion abuts against the first stop portion;

[0046] Figure 24 To correspond Figure 20 a cross-sectional view of a complementary connector in a position rotated relative to the fluid connector along a first direction until the abutment portion abuts against the first stop portion;

[0047] Figure 25A three-dimensional partial cross-sectional view of the locking member of the second embodiment of the present invention when it is in the unlocked position;

[0048] Figure 26 To correspond Figure 19 A cross-sectional view of the locking member in the unlocked position;

[0049] Figure 27 To correspond Figure 20 A cross-sectional view of the locking member in the unlocked position;

[0050] Figure 28 To correspond Figure 21 A cross-sectional view of the locking member in the unlocked position;

[0051] Figure 29 To correspond Figure 19 A cross-sectional view of the valve core in the open position;

[0052] Figure 30 To correspond Figure 20 A cross-sectional view of the valve core in the open position;

[0053] Figure 31 To correspond Figure 21 A cross-sectional view of the valve core in the open position;

[0054] Figure 32 This is an exploded view of a fluid connector according to a third embodiment of the present invention;

[0055] Figure 33 This is a perspective view of a fluid connector and a complementary connector according to a third embodiment of the present invention after docking, with the complementary connector not yet rotating;

[0056] Figure 34 A cross-sectional view of a fluid connector and a complementary connector according to a third embodiment of the present invention after docking, but before the complementary connector begins to rotate;

[0057] Figure 35 A cross-sectional view of the complementary connector according to the third embodiment of the present invention when the complementary connector is rotated relative to the fluid connector along the first direction until the pushing portion contacts the abutting portion;

[0058] Figure 36 A cross-sectional view of the locking member of the third embodiment of the present invention when it is in the unlocked position;

[0059] Figure 37 This is a cross-sectional view of the valve core of the third embodiment of the present invention when it is in the open position;

[0060] Description of the accompanying drawings for the specific embodiments:

[0061] Fluid connector 100 Housing 10 Docking 101 Keyhole 102 Fluid channel 103 Rocker 104 Fixed portion 1041 Matching portion 1042 Limiting portion 105 Stop surface 1051 Gap 1052 Spool 11 Spherical outer surface 111 Through hole 112 Driving member 12 Pulling portion 121 Buckling portion 1211 Stopper 1212 Connecting portion 122 Locking piece 13 Contact part 131 First abutment block 1311 Second abutment block 1312 Locking portion 132 Fulcrum 133 Through slot 134 Crimping portion 135 Pressing member 14 Main body 141 Spring arm 142 Clamping portion 143 Pressing portion 144 Button 15 Buckling portion 151 Elastic member 16 Spring-loaded piece 17 Complementary connector 200 Pushing portion 20 Stop portion 21 First stop portion 211 The second stop portion 212 [Specific implementation method]

[0062] In order to facilitate a better understanding of the purpose, structure, features and effects of the present invention, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods.

[0063] like Figures 1 to 13 FIG. 1 shows a first embodiment of the present invention, which provides a fluid connector 100 suitable for fluid transmission and is configured to dock with a complementary connector 200 along a front-to-back direction L. The fluid connector 100 includes a housing 10, a valve core 11, a locking member 13, a drive member 12, a button 15, and an elastic member 16. The housing 10 defines a central axis X for docking with the complementary connector 200. When the fluid connector 100 is docked with the complementary connector 200, the complementary connector 200 rotates relative to the fluid connector 100 in a first direction M. Before the fluid connector 100 is separated from the complementary connector 200, the complementary connector 200 rotates relative to the fluid connector 100 in a direction opposite to the first direction M, defining the first direction M as a rotation relative to the central axis X. The complementary connector 200 includes a push portion 20 and two stop portions 21. The push portion 20 is inclined in a direction opposite to the first direction M, from closer to the central axis X to farther away from the central axis X. The two stopping portions 21 are respectively a first stopping portion 211 and a second stopping portion 212 , wherein the first stopping portion 211 is connected to the pushing portion 20 .

[0064] like Figure 1 As shown, the housing 10 includes a docking surface 101, a locking hole 102, a fluid channel 103 extending through the docking surface 101 in the front-to-back direction L, a tilting member 104 located within the locking hole 102, and a limiting portion 105 located within the locking hole 102. The docking surface 101 is located at the front end of the housing 10 and docks with the complementary connector 200. In this embodiment, the housing 10 is a straight head type; in other embodiments, the housing 10 is an elbow type. In this embodiment, the locking hole 102 extends through the docking surface 101 in the front-to-back direction L; in other embodiments, the locking hole 102 does not extend through the docking surface 101 in the front-to-back direction L. The tilting member 104 includes a fixing portion 1041 and a mating portion 1042 integrally connected to the fixing portion 1041. The limiting portion 105 protrudes from the bottom wall of the locking hole 102 in a direction away from the central axis X, and the fixing portion 1041 is assembled and fixed to the limiting portion 105. The limiting portion 105 is provided with a stop surface 1051 and a notch 1052.

[0065] like Figure 5 and Figure 12As shown, the valve core 11 is rotatably mounted in the fluid passage 103, and a sealing ring (not numbered) is located between the housing 10 and the valve core 11. The valve core 11 includes a spherical outer surface 111 and a through hole 112 passing through the spherical outer surface 111. The valve core 11 can rotate around the axis Y between a closed position blocking the fluid passage 103 and an open position opening the fluid passage 103. The axis Y is perpendicular to the front-to-back direction L and intersects with the front-to-back direction L. When the valve core 11 is in the closed position, the surface of the valve core 11 cooperates with the housing 10 and the sealing ring (not numbered) to completely block the fluid passage 103, thereby preventing fluid communication from the docking surface 101 of the housing 10 through the fluid passage 103. When the valve core 11 is in the open position, the through hole 112 is coaxially aligned with the fluid passage 103 and allows fluid communication therethrough.

[0066] like Figure 1 、 Figure 5 and Figure 12 As shown, the driving member 12 extends through the outer circumference of the housing 10 (not numbered) and is rigidly connected to the valve core 11 by means of fasteners (not numbered) so as to rotate together with the valve core 11 around the axis Y. The rotation of the driving member 12 drives the valve core 11 to rotate, and when the driving member 12 stops rotating, the valve core 11 also stops rotating. The driving member 12 includes a pull portion 121 and a connecting portion 122 arranged near the outer circumference of the housing 10. The two ends of the connecting portion 122 are respectively fixedly connected to the pull portion 121 and the valve core 11. The fasteners pass through the connecting portion 122 to further fix the valve core 11. Accordingly, the rotation of the pull portion 121 around the axis Y drives the valve core 11 to rotate between the open position and the closed position. In this embodiment, the pull portion 121 includes a snap-fit ​​portion 1211 and a stop portion 1212 connected to the snap-fit ​​portion 1211. The snap-fit ​​portion 1211 is a snap-fit ​​groove. In other embodiments, the connecting portion 122 includes a buckling portion 1211 and a stopping portion 1212 connected to the buckling portion 1211 , and the buckling portion 1211 is a buckling groove.

[0067] like Figures 1 to 2As shown, the locking member 13 is received in the lock hole 102 and moves between a locked position and an unlocked position. The locking member 13 includes an abutting portion 131, a locking portion 132 located behind the abutting portion 131, and a fulcrum 133 located between the abutting portion 131 and the locking portion 132. The abutting portion 131 is located at the front end of the locking member 13. The locking portion 132 is received in the notch 1052. The locking portion 132 is a locking protrusion. The fulcrum 133 abuts the mating portion 1042. In this embodiment, the fulcrum 133 is closer to the central axis X relative to the mating portion 1042, and the elastic member 16 is closer to the central axis X relative to the locking portion 132, and the elastic member 16 abuts the locking portion 132. In other embodiments, the fulcrum 133 is farther from the central axis X relative to the mating portion 1042, and the elastic member 16 is farther from the central axis X relative to the locking portion 132, and the elastic member 16 abuts the locking portion 132. The locking member 13 also includes a through-slot 134, through which the limiting portion 105 passes. The connecting portion 122 extends through both the limiting portion 105 and the through-slot 134 to securely connect to the valve core 11. A stop surface 1051 abuts the inner wall of the through-slot 134, preventing the locking member 13 from rotating relative to the limiting portion 105. The fixing portion 1041 is located within the through-slot 134, while the mating portion 1042 is located outside the through-slot 134.

[0068] The process of docking and undocking the fluid connector 100 and the complementary connector 200 is as follows:

[0069] refer to Figures 3 to 7 As shown, before the fluid connector 100 and the complementary connector 200 are docked, the abutting portion 131 extends forward from the locking hole 102, the fulcrum 133 abuts the mating portion 1042, the locking member 13 remains in the locked position, and the locking portion 132 and the locking portion 1211 are engaged with each other. At this time, the locking portion 132 prevents the pull portion 121 from rotating, that is, the valve core 11 is in the closed position and the locking member 13 prevents the valve core 11 from rotating from the closed position to the open position. The motion state of the fluid connector 100 before docking is consistent with the motion state of the fluid connector 100 when the complementary connector 200 has not started to rotate after docking, which can be referred to Figures 3 to 7 The fluid connector 100.

[0070] like Figures 3 to 7 As shown, when the fluid connector 100 is docked with the complementary connector 200, the abutment portion 131 is received in the complementary connector 200. Figures 8 and 9As shown, the complementary connector 200 rotates relative to the fluid connector 100 along the first direction M, and the pushing portion 20 pushes the abutting portion 131 to move along the second direction N, that is, the abutting portion 131 moves away from the central axis X, and the second direction N is defined to rotate relative to the fulcrum 133 until the abutting portion 131 abuts the first stop portion 211. The abutting portion 131 is used to prevent the complementary connector 200 from continuing to rotate relative to the fluid connector 100 along the first direction M. At the same time, the locking portion 132 moves along the second direction N, that is, the locking portion 132 moves closer to the central axis X until the locking portion 132 is disengaged from the buckling portion 1211; at this time, as shown in FIG. Figures 10 and 11 As shown, the abutment portion 131 is located between the first stop portion 211 and the second stop portion 212, and the locking member 13 is located in the unlocked position, for allowing the pull portion 121 to rotate, that is, the locking member 13 is used to allow the valve core 11 to rotate from the closed position to the open position; Figures 12 to 13 As shown, after the pull portion 121 rotates, the stopping portion 1212 is located at the end of the locking portion 132 away from the central axis X, and is used to stop the locking portion 132 from moving in the opposite direction of the second direction N, that is, to stop the locking portion 132 from moving away from the central axis X, thereby preventing the abutting portion 131 from moving in the opposite direction of the second direction N, that is, to prevent the abutting portion 131 from moving toward the central axis X. The abutting portion 131 is stopped by the first stop portion 211 from continuing to rotate in the first direction M and stops the second stop portion 212 from rotating in the opposite direction of the first direction M, that is, the locking member 13 stops the complementary connector 200 from rotating relative to the fluid connector 100 in the first direction M and in the opposite direction of the first direction M.

[0071] Before the fluid connector 100 is separated from the complementary connector 200, the pull portion 121 drives the valve core 11 to rotate from the open position to the closed position, and the snap-on portion 1211 rotates to the end of the locking portion 132 away from the central axis X. As the complementary connector 200 moves in the opposite direction of the fluid connector 100 along the first direction M, the elastic member 16 abuts against the locking portion 132 and moves in the opposite direction of the second direction N, that is, the locking portion 132 moves away from the central axis X, so that the locking portion 132 and the snap-on portion 1211 are snapped together. At this time, the abutting portion 131 moves in the opposite direction of the second direction N, that is, the abutting portion 131 moves toward the central axis X, and the abutting portion 131 disengages from between the first stop portion 211 and the second stop portion 212.

[0072] like Figures 14 to 31FIG. 2 shows a second embodiment of the present invention. A fluid connector 100 is configured to mate with a complementary connector 200 along a front-to-back direction L. The fluid connector 100 includes a housing 10, a valve core 11, a locking member 13, an elastic member 16, a spring member 17, a pressing member 14, and a button 15. The housing 10 defines a central axis X for mating with the complementary connector 200. When the fluid connector 100 and the complementary connector 200 are mated, the complementary connector 200 rotates relative to the fluid connector 100 in a first direction M. Before the fluid connector 100 and the complementary connector 200 are separated, the complementary connector 200 rotates relative to the fluid connector 100 in a direction opposite to the first direction M, defining the first direction M as rotation relative to the central axis X. The complementary connector 200 includes a push portion 20 and two stop portions 21. The push portion 20 is inclined from front to back in a direction opposite to the first direction M. The two stop portions 21 are a first stop portion 211 and a second stop portion 212, respectively, with the first stop portion 211 connected to the push portion 20.

[0073] like Figure 14 As shown, the housing 10 includes a docking surface 101, a locking hole 102, a fluid channel 103 extending through the docking surface 101 in the front-to-back direction L, a rocker 104 located within the locking hole 102, and a stopper 105 located within the locking hole 102. The docking surface 101 is located at the front end of the housing 10 and docks with the complementary connector 200. In this embodiment, the housing 10 is a straight head type; in other embodiments, the housing 10 is an elbow type. The housing 10 defines the central axis X of the complementary connector 200. In this embodiment, the locking hole 102 extends through the docking surface 101 in the front-to-back direction L; in other embodiments, the locking hole 102 does not extend through the docking surface 101 in the front-to-back direction L. The rocker 104 includes a fixing portion 1041 and a mating portion 1042 integrally connected to the fixing portion 1041. The stopper 105 protrudes from the bottom wall of the locking hole 102 in a direction away from the central axis X, and the fixing portion 1041 is assembled and fixed to the stopper 105. The limiting portion 105 defines a stopping surface 1051 and a notch 1052 .

[0074] like Figure 19 and Figure 29As shown, the valve core 11 is rotatably mounted in the fluid passage 103, and a sealing ring (not numbered) is located between the housing 10 and the valve core 11. The valve core 11 includes a spherical outer surface 111 and a through hole 112 passing through the spherical outer surface 111. The valve core 11 can rotate around the axis Y between a closed position blocking the fluid passage 103 and an open position opening the fluid passage 103. The axis Y is perpendicular to the front-to-back direction L and intersects with the front-to-back direction L. When the valve core 11 is in the closed position, the surface of the valve core 11 cooperates with the housing 10 and the sealing ring (not numbered) to completely block the fluid passage 103, thereby preventing fluid communication from the docking surface 101 of the housing 10 through the fluid passage 103. When the valve core 11 is in the open position, the through hole 112 is coaxially aligned with the fluid passage 103 and allows fluid communication therethrough.

[0075] like Figures 1 to 2 、 Figure 19 and Figure 29 As shown, the driving member 12 extends through the outer circumference of the housing 10 (not numbered) and is rigidly connected to the valve core 11 by means of fasteners (not numbered) so as to rotate together with the valve core 11 around the axis Y. The rotation of the driving member 12 drives the valve core 11 to rotate, and when the driving member 12 stops rotating, the valve core 11 also stops rotating. The driving member 12 includes a pull portion 121 and a connecting portion 122 arranged near the outer circumference of the housing 10. The two ends of the connecting portion 122 are respectively fixedly connected to the pull portion 121 and the valve core 11. The fasteners pass through the connecting portion 122 to further fix the valve core 11. Accordingly, the rotation of the pull portion 121 around the axis Y drives the valve core 11 to rotate between the open position and the closed position. In this embodiment, the pull portion 121 includes a snap-fit ​​portion 1211 and a stop portion 1212 connected to the snap-fit ​​portion 1211. The snap-fit ​​portion 1211 is a snap-fit ​​groove. In other embodiments, the connecting portion 122 includes a buckling portion 1211 and a stopping portion 1212 connected to the buckling portion 1211 , and the buckling portion 1211 is a buckling groove.

[0076] like Figure 14As shown, the locking member 13 is received in the locking hole 102 and moves between a locked position and an unlocked position. The locking member 13 includes an abutting portion 131, a locking portion 132 located behind the abutting portion 131, a fulcrum 133 located between the abutting portion 131 and the locking portion 132, and a crimping portion 135 located behind the fulcrum 133. The abutment portion 131 is located at the front end of the locking member 13. The locking portion 132 is received in the notch 1052. The locking portion 132 is a locking protrusion. The fulcrum 133 abuts the mating portion 1042. In this embodiment, the fulcrum 133 is closer to the central axis X relative to the mating portion 1042, and the elastic member 16 is closer to the central axis X relative to the locking portion 132. The elastic member 16 abuts the locking portion 132. In other embodiments, the fulcrum 133 is farther from the central axis X relative to the mating portion 1042, and the elastic member 16 is farther from the central axis X relative to the locking portion 132. The elastic member 16 abuts the locking portion 132. The locking member 13 also includes a through-slot 134. The limiting portion 105 passes through the through-slot 134. The connecting portion 122 passes through the limiting portion 105 and the through-slot 134 to securely connect the valve core 11. The stopping surface 1051 abuts the inner wall of the through-slot 134 to prevent the locking member 13 from rotating relative to the limiting portion 105. The fixing portion 1041 is located in the through slot 134 , and the matching portion 1042 is located outside the through slot 134 . The spring member 17 abuts against the locking member 13 forward.

[0077] like Figures 14 and 15 As shown, the pressing member 14 includes a main body 141, an elastic arm 142 bent from the main body 141, a clamping portion 143 bent from the main body 141, and a pressing portion 144 bent from the main body 141 toward the center axis X. The end of the elastic arm 142, away from the main body 141, is clamped to the trigger portion 121, and the end of the elastic arm 142 connected to the main body 141 is elastically displaceable within the trigger portion 121. The button 15 includes a snap-fit ​​portion 151 that cooperates with the clamping portion 143.

[0078] The process of docking and undocking the fluid connector 100 and the complementary connector 200 is as follows:

[0079] like Figure 16 As shown, before the fluid connector 100 is docked with the complementary connector 200, the abutting portion 131 extends forward from the locking hole 102, the fulcrum 133 abuts the mating portion 1042, the locking member 13 remains in the locked position, and the locking portion 132 and the snapping portion 1211 are snapped together. At this time, the locking portion 132 prevents the pull portion 121 from rotating, that is, the valve core 11 is in the closed position and the locking member 13 prevents the valve core 11 from rotating from the closed position to the open position.

[0080] like Figures 17 to 21As shown, when the fluid connector 100 is docked with the complementary connector 200, the abutting portion 131 is received in the complementary connector 200, and the complementary connector 200 rotates relative to the fluid connector 100 along the first direction M, and the pushing portion 20 pushes the abutting portion 131 to move backward, and the crimping portion 135 moves backward until the abutting portion 131 abuts the first stop portion 211, as shown in FIG. Figures 22 to 24 As shown, the abutment portion 131 is used to prevent the complementary connector 200 from continuing to rotate relative to the fluid connector 100 along the first direction M; at this time, as shown in FIG. Figures 25 to 28 As shown, the button is pressed forward, and the button 15 drives the holding portion, the pressing portion 144 and the main body 141 to move forward. At the same time, the button 15 drives the end of the elastic arm 142 connected to the main body 141 to elastically displace forward; the pressing portion 144 abuts the crimping portion 135, pushing the crimping portion 135 to move along the second direction N, that is, the crimping portion 135 moves toward the center axis X, and the crimping portion 135 drives the locking portion 132 to move along the second direction N, that is, the crimping portion 135 drives the locking portion 132 to move toward the center axis X until the locking portion 132 is disengaged from the buckling portion 1211, and the abutting portion 131 moves along the second direction N, that is, the abutting portion 131 moves away from the center axis X; at this time, the abutting portion 131 is located between the first stop portion 211 and the second stop portion 212, and the locking member 13 is in the unlocked position, used to allow the pull portion 121 to rotate, that is, the locking member 13 is used to allow the valve core 11 to rotate from the closed position to the open position; Figures 29 to 31 As shown, after the pull portion 121 rotates, the stop portion 1212 is located at the end of the locking portion 132 away from the central axis X, and is used to stop the locking portion 132 from moving in the opposite direction of the second direction N, that is, stopping the locking portion 132 from moving away from the central axis X. This in turn prevents the abutting portion 131 from moving in the opposite direction of the second direction N, that is, preventing the abutting portion 131 from moving toward the central axis X. The abutting portion 131 is stopped by the first stop portion 211 from continuing to rotate in the first direction M and stops the second stop portion 212 from rotating in the direction opposite to the first direction M. In other words, the locking member 13 prevents the complementary connector 200 from rotating relative to the fluid connector 100 in the first direction M and in the direction opposite to the first direction M. When the button 15 is released, the end of the elastic arm 142 connected to the main body 141 elastically rebounds backward, driving the holding portion, the pressing portion 144, and the main body 141 to move backward.

[0081] Before the fluid connector 100 is separated from the complementary connector 200, the pull portion 121 drives the valve core 11 to rotate from the open position to the closed position, and the buckle portion 1211 rotates to the end of the locking portion 132 away from the central axis X. The elastic member 16 abuts the locking portion 132 and moves in the opposite direction of the second direction N, that is, the locking portion 132 moves away from the central axis X, so that the locking portion 132 and the buckle portion 1211 are engaged with each other. At this time, the abutting portion 131 moves in the opposite direction of the second direction N, that is, the abutting portion 131 moves toward the central axis X until the abutting portion 131 and the second stop portion 212 are offset from each other. At this time, the abutting portion 131 is stopped by the first stop portion 211. As the complementary connector 200 moves in the opposite direction of the fluid connector 100 along the first direction M, the spring-pressing member 17 abuts the locking member 13 and moves forward until the abutting portion 131 and the pushing portion 20 are disengaged from each other.

[0082] like Figures 32 to 37 FIG. 3 shows a third embodiment of the present invention. A fluid connector 100 is configured to mate with a complementary connector 200 along a front-to-back direction L. The fluid connector 100 includes a housing 10, a valve core 11, a locking member 13, an elastic member 16, and a button 15. The housing 10 defines a central axis X for mating with the complementary connector 200. When the fluid connector 100 and the complementary connector 200 are mated, the complementary connector 200 rotates relative to the fluid connector 100 in a first direction M. Before the fluid connector 100 and the complementary connector 200 are separated, the complementary connector 200 rotates relative to the fluid connector 100 in a direction opposite to the first direction M, defining the first direction M as rotation relative to the central axis X. The complementary connector 200 includes a push portion 20 and a stop portion 21.

[0083] like Figure 32 As shown, the housing 10 includes a docking surface 101, a locking hole 102, a fluid passage 103 extending through the docking surface 101 in the front-to-back direction L, and a rocker 104 located within the locking hole 102. The docking surface 101 is located at the front end of the housing 10 and mates with the complementary connector 200. In this embodiment, the housing 10 is a straight type; in other embodiments, the housing 10 is an angled type. The housing 10 defines a central axis X for the complementary connector 200. In this embodiment, the locking hole 102 extends through the docking surface 101 in the front-to-back direction L; in other embodiments, the locking hole 102 does not extend through the docking surface 101 in the front-to-back direction L.

[0084] The valve core 11 is rotatably mounted in the fluid passage 103, and a sealing ring (not numbered) is located between the housing 10 and the valve core 11. The valve core 11 includes a spherical outer surface 111 and a through hole 112 passing through the spherical outer surface 111. The valve core 11 can rotate around the axis Y between a closed position blocking the fluid passage 103 and an open position opening the fluid passage 103. The axis Y is perpendicular to the front-to-back direction L and intersects with the front-to-back direction L. When the valve core 11 is in the closed position, the surface of the valve core 11 cooperates with the housing 10 and the sealing ring (not numbered) to completely block the fluid passage 103, thereby preventing fluid communication from the docking surface 101 of the housing 10 through the fluid passage 103. When the valve core 11 is in the open position, the through hole 112 is coaxially aligned with the fluid passage 103 and allows fluid communication therethrough.

[0085] like Figure 32 As shown, the driving member 12 extends through the outer circumference of the housing 10 (not numbered) and is rigidly connected to the valve core 11 by means of fasteners (not numbered) so as to rotate together with the valve core 11 around the axis Y. The rotation of the driving member 12 drives the valve core 11 to rotate, and when the driving member 12 stops rotating, the valve core 11 also stops rotating. The driving member 12 includes a pull portion 121 and a connecting portion 122 arranged near the outer circumference of the housing 10. The two ends of the connecting portion 122 are respectively fixedly connected to the pull portion 121 and the valve core 11. The fasteners pass through the connecting portion 122 to further fix the valve core 11. Accordingly, the rotation of the pull portion 121 around the axis Y drives the valve core 11 to rotate between the open position and the closed position. In this embodiment, the pull portion 121 includes a snap-fit ​​portion 1211 and a stop portion 1212 connected to the snap-fit ​​portion 1211. The snap-fit ​​portion 1211 is a snap-fit ​​groove. In other embodiments, the connecting portion 122 includes a buckling portion 1211 and a stopping portion 1212 connected to the buckling portion 1211 , and the buckling portion 1211 is a buckling groove.

[0086] like Figure 32 As shown, the locking member 13 is received in the locking hole 102 and moves between a locked position and an unlocked position. The locking member 13 includes an abutting portion 131, a locking portion 132 located behind the abutting portion 131, and a fulcrum 133 located between the abutting portion 131 and the locking portion 132. The abutting portion 131 is located at the front end of the locking member 13 and includes a first abutting block 1311 and a second abutting block 1312. The locking portion 132 is a locking protrusion. The rocker 104 is received at the fulcrum 133, and the elastic member 16 abuts the locking portion 132.

[0087] The process of docking and undocking the fluid connector 100 and the complementary connector 200 is as follows:

[0088] refer to Figure 34As shown, before the fluid connector 100 and the complementary connector 200 are docked, the abutment portion 131 extends forward from the lock hole 102, the fulcrum 133 abuts the rocker 104, the locking member 13 remains in the locked position, and the locking portion 132 and the locking portion 1211 are engaged with each other. At this time, the locking portion 132 prevents the pull portion 121 from rotating, that is, the valve core 11 is in the closed position and the locking member 13 prevents the valve core 11 from rotating from the closed position to the open position. The motion state of the fluid connector 100 before docking is consistent with the motion state of the fluid connector 100 when the complementary connector 200 has not started to rotate after docking, which can be referred to Figure 34 The fluid connector 100.

[0089] like Figure 34 As shown, when the fluid connector 100 is docked with the complementary connector 200, the abutment portion 131 is received in the complementary connector 200. Figure 35 As shown, the complementary connector 200 rotates relative to the fluid connector 100 in the first direction M, and the pushing portion 20 is located between the first abutting block 1311 and the second abutting block 1312. The pushing portion 20 pushes the first abutting block 1311 to rotate in the second direction N, which is defined as the second direction N rotating relative to the fulcrum 133. The second abutting block 1312 rotates along the second direction N with the first abutting block 1311. At this time, the locking portion 132 rotates in the second direction N until the locking portion 132 is disengaged from the buckling portion 1211. At this time, as shown in FIG. Figure 36 As shown, the second abutment block 1312 is located between the pushing portion 20 and the stop portion 21, and the locking member 13 is located in the unlocked position. The locking member 13 is used to allow the pull portion 121 to rotate, that is, the locking member 13 is used to allow the valve core 11 to rotate from the closed position to the open position; Figure 37 As shown, after the pull part 121 rotates, the stopping part 1212 rotates to the trajectory of the locking part 132 rotating in the opposite direction of the second direction N. The stopping part 1212 stops the locking part 132 from rotating in the opposite direction of the second direction N, thereby preventing the second abutment block 1312 from rotating in the opposite direction of the second direction N. The second abutment block 1312 stops the stopping part 21 from rotating in the first direction M and stops the pushing part 20 from rotating in the opposite direction of the first direction M, that is, the locking member 13 stops the complementary connector 200 from rotating relative to the fluid connector 100 in the first direction M and in the opposite direction of the first direction M.

[0090] Before the fluid connector 100 is separated from the complementary connector 200, the pull portion 121 drives the valve core 11 to rotate from the open position to the closed position, and the snap-fit ​​portion 1211 rotates to the trajectory of the locking portion 132 rotating in the opposite direction of the second direction N. As the complementary connector 200 moves in the opposite direction of the fluid connector 100 along the first direction M, the elastic member 16 abuts against the locking portion 132 and moves in the opposite direction of the second direction N, so that the locking portion 132 and the snap-fit ​​portion 1211 are snapped together. At this time, the second abutting block 1312 moves in the opposite direction of the second direction N, and the second abutting block 1312 disengages from between the pushing portion 20 and the stop portion 21.

[0091] In summary, the electrical connector of the present invention has the following beneficial effects:

[0092] (1) The buckling portion 1211 and the locking portion 132 are buckled with each other, so that when the locking member 13 is maintained in the locked position, the pull portion 121 cannot rotate, thereby preventing the valve core 11 from rotating from the closed position to the open position.

[0093] (2) The stopping surface 1051 of the limiting portion 105 abuts against the inner wall of the through groove 134, and is used to stop the locking member 13 from rotating relative to the limiting portion 105, so as to prevent the abutting portion 131 from pushing the pushing portion 20 to move out of position along the second direction N as the complementary connector 200 rotates relative to the fluid connector 100, that is, the abutting portion 131 does not move away from the central axis X, thereby causing the locking portion 132 to move along the second direction N, that is, the locking portion 132 does not move close to the central axis X, thereby preventing the locking portion 132 from being separated from the buckling portion 1211; the locking portion 132 is accommodated in the notch 1052, and the notch 1052 provides a space for the locking portion 132.

[0094] (3) The rocker 104 includes a fixing portion 1041 located in the through groove 134 and a matching portion 1042 integrally connected to the fixing portion 1041. The fixing portion 1041 is assembled and fixed with the limiting portion 105. During assembly, the locking member 13 can be first inserted into the locking hole 102, and then the fixing portion 1041 of the rocker 104 is assembled and fixed with the limiting portion 105; the fulcrum 133 is close to the central axis X relative to the matching portion 1042, and the elastic member 16 is close to the central axis X relative to the locking portion 132. The elastic member 16 can abut the locking portion 132 and move in the opposite direction of the second direction N, that is, the locking portion 132 can move away from the central axis X.

[0095] (4) The pushing portion 20 is inclined in a direction opposite to the first direction M from close to the central axis X to away from the central axis X. As the complementary connector 200 rotates relative to the fluid connector 100 in the first direction M, the pushing portion 20 pushes the abutting portion 131 to move in the second direction N, that is, the abutting portion 131 moves away from the central axis X, and the locking portion 132 moves in the second direction N, that is, the locking portion 132 moves close to the central axis X until the locking portion 132 disengages from the fastening portion 1211.

[0096] (5) When the fluid connector 100 is docked with the complementary connector 200, the driving member 12 rotates to drive the valve core 11 from the closed position to the open position, and the stopping portion 1212 rotates to the trajectory of stopping the locking member from rotating in the opposite direction of the second direction N. The stopping portion 1212 stops the locking member from rotating in the opposite direction of the second direction N, thereby preventing the second abutment block 1312 from rotating in the opposite direction of the second direction N. The second abutment block 1312 stops the stop portion 21 from rotating in the first direction M and stops the push portion 20 from rotating in the opposite direction of the first direction M, that is, the locking member 13 stops the complementary connector 200 from rotating relative to the fluid connector 100 in the first direction M and in the opposite direction of the first direction M, thereby avoiding the fluid connector 100 and the complementary connector 200 from accidentally loosening when the fluid channel 103 is opened, thereby causing fluid leakage.

[0097] The above detailed description is only an illustration of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this invention are included in the patent scope of this invention.

Claims

1. A fluid connector, characterized in that: include: a housing including a docking surface, a locking hole, and a fluid passage extending through the docking surface in a front-to-rear direction, the docking surface being located at a front end of the housing and docking with a complementary connector; a valve core that rotates between a closed position that blocks the fluid passage and an open position that opens the fluid passage; a locking member received in the lock hole and movable between a locked position and an unlocked position; Before the fluid connector is docked with the complementary connector, the front end of the locking member extends forward from the locking hole, and the locking member is maintained in the locked position. At this time, the valve core is in the closed position and the locking member prevents the valve core from rotating from the closed position to the open position. When the fluid connector is docked with the complementary connector, the complementary connector rotates in a first direction relative to the fluid connector and pushes against the locking member, causing the locking member to move in the lock hole. The shell defines the central axis of the docked complementary connector and defines the rotation in the first direction relative to the central axis. When the locking member is in the unlocked position, the locking member is used to allow the valve core to rotate from the closed position to the open position and prevent the complementary connector from rotating relative to the fluid connector.

2. The fluid connector according to claim 1, wherein: It also includes a snap-on portion, the complementary connector is provided with a pushing portion, the shell includes a matching portion located in the locking hole, the locking member includes an abutting portion, a locking portion located behind the abutting portion, and a fulcrum located between the abutting portion and the locking portion, the fulcrum abuts the matching portion, and before the fluid connector is docked with the complementary connector, the locking portion and the snap-on portion are snapped together, and when the fluid connector is docked with the complementary connector, the abutting portion is accommodated in the complementary connector, and as the complementary connector rotates relative to the fluid connector in a first direction, the pushing portion pushes the abutting portion to move, and the locking portion rotates in a second direction until the locking portion is disengaged from the snap-on portion, defining a rotation relative to the fulcrum in the second direction.

3. The fluid connector according to claim 2, wherein: It also includes a driving part, which includes a pull part and a connecting part. The two ends of the connecting part are respectively fixedly connected to the pull part and the valve core, and the valve core is driven to rotate by the rotation of the pull part. The locking part also includes a through groove, and the connecting part passes through the through groove. The pull part includes a buckling part, which is a buckling groove, and the locking part is a locking protrusion.

4. The fluid connector according to claim 2, wherein: The locking member also includes a through slot, and the shell includes a limiting portion located in the lock hole. The limiting portion protrudes from the bottom wall of the lock hole in a direction away from the center axis and passes through the through slot. The limiting portion is provided with a stopping surface and a notch. The stopping surface abuts the inner wall of the through slot and is used to stop the locking member from rotating relative to the limiting portion, and the locking portion is accommodated in the notch.

5. The fluid connector according to claim 4, wherein: It also includes an elastic part, the shell includes a rocking part located in the lock hole, the rocking part includes a fixed part located in the through groove and a matching part integrally connected to the fixed part, the fixed part is assembled and fixed with the limiting part, the fulcrum is close to the central axis relative to the matching part, the elastic part is close to the central axis relative to the locking part, and the elastic part abuts the locking part.

6. The fluid connector according to claim 2, wherein: The pushing portion is inclined from close to the central axis to away from the central axis in a direction opposite to the first direction. When the fluid connector is docked with the complementary connector, the pushing portion pushes the abutting portion to move along the second direction.

7. The fluid connector according to claim 2, wherein: It also includes a pressing portion, and the locking member also includes a crimping portion located behind the fulcrum. The pushing portion is inclined from front to rear along the opposite direction of the first direction. The complementary connector also includes a stop portion connected to the pushing portion. When the fluid connector is docked with the complementary connector, the pushing portion pushes the abutting portion to move backward, and the crimping portion moves backward at the same time until the abutting portion abuts the stop portion, which is used to prevent the complementary connector from continuing to rotate relative to the fluid connector along the first direction. The pressing portion abuts the crimping portion, pushing the crimping portion to move along the second direction, and the crimping portion drives the locking portion to move along the second direction until the locking portion is disengaged from the snapping portion.

8. The fluid connector according to claim 7, wherein: The push button further comprises a pressing member and a button housed in the pulling portion, wherein the pressing member comprises a main body, an elastic arm bent from the main body, a clamping portion bent from the main body, and a pressing portion bent from the main body toward the center axis. One end of the elastic arm away from the main body is clamped in the pulling portion, and the button comprises a snap-fit ​​portion. The snap-fit ​​portion and the clamping portion cooperate with each other. When the button is pressed forward, the button drives the clamping portion, the pressing portion and the main body to move forward. At the same time, the button drives one end of the elastic arm connected to the main body to elastically displace forward, and the pressing portion abuts against the crimping portion, pushing the crimping portion to move in the second direction. When the button is released, the end of the elastic arm connected to the main body elastically rebounds backward, driving the clamping portion, the pressing portion and the main body to move backward.

9. The fluid connector according to claim 1, wherein: It also includes a snap-on portion, the complementary connector is provided with a pushing portion, the shell includes a rocking piece located in the locking hole, the locking piece includes an abutting portion, a locking portion located behind the abutting portion, and a fulcrum located between the abutting portion and the locking portion, the fulcrum abuts the rocking piece, before the fluid connector is docked with the complementary connector, the rocking piece abuts the fulcrum, the locking portion and the snap-on portion are engaged with each other, when the fluid connector is docked with the complementary connector, the abutting portion is accommodated in the complementary connector, as the complementary connector rotates relative to the fluid connector in a first direction, the pushing portion pushes the abutting portion to rotate in a second direction, and the locking portion rotates in the second direction until the locking portion is disengaged from the snap-on portion, defining a rotation relative to the fulcrum in the second direction.

10. The fluid connector according to claim 9, wherein: The valve core is fixed with the driving member, the driving member includes a buckling portion and a stopping portion connected to the buckling portion, the abutting portion includes a first abutting block and a second abutting block, and the complementary connector includes a stop portion. When the fluid connector is docked with the complementary connector, the complementary connector rotates relative to the fluid connector in the first direction, the pushing portion is located between the first abutting block and the second abutting block, the pushing portion pushes the first abutting block to rotate in the second direction, and the second abutting block rotates along the second direction accordingly, and the locking portion rotates in the second direction until the locking portion is disengaged from the buckling portion. At this time, the second abutting block is located between the pushing portion and the stopping portion, and the locking member is in the unlocked position. The driving member rotates to drive the valve core from the closed position to the open position, and the stopping portion stops the locking member from rotating in the opposite direction of the second direction. The second abutting block stops the stopping portion from rotating in the first direction and stops the pushing portion from rotating in the opposite direction of the first direction.

11. The fluid connector according to claim 1, wherein: The valve core is rotated by the rotation of the driving member, the driving member includes a snap-on portion and a stopping portion connected to the snap-on portion, and the locking member includes a locking portion. Before the fluid connector is docked with the complementary connector, the snap-on portion and the locking portion are snapped with each other, and the locking member is maintained in a locked position; when the fluid connector is docked with the complementary connector, the locking portion moves away from the snap-on portion until the locking portion disengages from the snap-on portion. At this time, the locking member is in an unlocked position. After the driving member rotates, the stopping portion stops the locking portion to prevent the locking member from moving. The locking member stops the complementary connector from rotating relative to the fluid connector along a first direction and in an opposite direction to the first direction.

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