Fluid connector

Abstract

The utility model discloses a fluid connector, which comprises a connecting end, a butt joint end and an operation part, and a communication channel on a first seat body of the connecting end is used for being correspondingly communicated with a communication channel on a second seat body of the butt joint end; at least one of the connecting end and the butt joint end is provided with a first valve capable of moving to open and close the corresponding communication channel, and the first valve is in transmission fit with the operation part; the operation part is movably arranged on the first seat body, and the second seat body is provided with a second locking structure matched with the first locking structure on the operation part; the first locking structure moves relative to the second locking structure, so that the moving direction of the first locking structure in the in-out locking state is consistent with the moving direction of opening and closing of the first valve, and when the operation part moves relative to the first seat body to drive the first valve to move in the moving direction. The first locking structure can be driven to move relative to the second locking structure in the moving direction of the in-out locking state. By additionally arranging the operation part, connection between the connecting end and the butt joint end and opening and closing of the valve are achieved, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid connection, and more specifically, to a fluid connector. Background Art

[0002] The fluid connector mainly includes two connectors, which can be of the same or different structures and can be further connected by docking with each other. For the convenience of description, generally speaking, one connector is called a connection end, and the other connector docking with the connection end is called a docking end.

[0003] In the process of realizing the invention of the utility model, the inventor found that there are at least the following problems in the prior art: when the connecting end and the butt end are connected, the valve needs to be driven to rotate to achieve connection, and then the locking piece is used to constrain it at the connection position. In the existing system, the two valve seats generally push each other to rotate the valve, and the two valve seats are locked by the locking piece. However, this structural operation requires the two valve seats to move relative to each other during the operation, which makes the operation inconvenient. Utility Model Content

[0004] In view of this, an object of the present utility model is to provide a fluid connector, which can effectively solve the problem of inconvenient connection operation of the fluid connector.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A fluid connector comprises a connecting end, a docking end and an operating part, wherein a communicating channel on a first seat body of the connecting end is used to communicate with a corresponding communicating channel on a second seat body of the docking end; at least one of the connecting end and the docking end is provided with a first valve which can be movably used to open and close the corresponding communicating channel, and the first valve is in transmission cooperation with the operating part; the operating part is movably provided on the first seat body, and the second seat body has a second locking structure which cooperates with the first locking structure on the operating part, so as to realize locking of the connecting end and the docking end in a locked state; the moving direction of the first locking structure to enter and exit the locked state relative to the second locking structure is consistent with the moving direction of the first valve to realize opening and closing, so that when the operating part moves relative to the first seat body to drive the first valve to move along the moving direction, the first locking structure can be driven to move relative to the second locking structure along the moving direction of entering and exiting the locked state.

[0007] When the above-mentioned fluid connector is applied, after the connection end and the docking end are docked, the first seat body and the second seat body are relatively fixed, and then a force is applied to the operating part so that the operating part moves relative to the first seat body. In the process of driving the first valve to move, the first locking structure can be driven to move relative to the second locking structure to enter a locked state, and the first valve realizes the corresponding opening or closing of the communication channel. In the above operation, after the connection end is docked with the docking end at a predetermined angle, the operating part is operated to move along a preset direction, so that the docking end and the connection end can be locked, and the opening and closing of the first valve can be realized at the same time. By adding the operating part, the connection between the connection end and the docking end and the opening and closing of the valve can be realized, and the relative rotation of the two seat bodies can be avoided, making the operation more convenient. By setting the operating part on the first seat body and the operating part and the second seat body in a locking connection, the locking between the connection end and the docking end can be realized, and the locking of the locking structure is completed by the activity of the operating part. Compared with setting the locking structure on the two valve seats, the structure is simpler and the operation is more convenient. In summary, the fluid connector can effectively solve the problem of inconvenient connection operation of the current fluid connector.

[0008] In some technical solutions, the first valve is rotatably connected to the first seat body, and the operating portion is relatively fixed to the first valve; in a locked state, the first locking structure and the second locking structure abut against each other along the axial direction of the first valve.

[0009] In some technical solutions, one of the first locking structure and the second locking structure is an arc-shaped slot, and the other is a protrusion that matches the arc-shaped slot.

[0010] In some technical solutions, the docking end further includes a second valve rotatably disposed on the second seat body to open and close a communication channel on the second seat body; the first valve and the second valve are plug-connected along the axial direction.

[0011] In some technical solutions, the first valve has a first plug column, the second valve has a first plug hole that is plugged into and matched with the first plug column, the second seat body is provided with a first locking pin, and the first plug hole is provided with a first locking hole that cooperates with the first locking pin to prevent the second valve from rotating, so that when the first plug column is inserted into the first plug hole, the first locking pin exits the first locking hole;

[0012] The second valve has a second plug column, the first valve has a second socket that is plugged into and cooperates with the second plug column, the first seat body is provided with a second locking pin, and the second socket is provided with a second locking hole that cooperates with the second locking pin to prevent the first valve from rotating, so that when the second plug column is inserted into the second socket, the second locking pin exits the second locking hole.

[0013] In some technical solutions, the operating part is a sleeve, which is sleeved on the outside of the first seat body.

[0014] In some technical solutions, the inner wall of the sleeve is provided with two arc-shaped grooves arranged opposite to each other, and the outer wall of the second seat body has two corresponding protrusions.

[0015] In some technical solutions, a connecting screw is further included. An arc-shaped through groove is opened on the first seat body. The connecting screw passes through the through hole on the sleeve and the through groove and is threadedly connected to the first valve to fix the operating part on the first valve.

[0016] In some technical schemes, the first socket and the second socket are both elongated in the circumferential direction; in the circumferential direction of the first valve rotation axis, the first locking hole is located in the middle of the first socket, and the second locking hole is located in the middle of the second socket; in the radial direction of the first valve rotation axis, the width of the first socket is smaller than the diameter of the first locking hole, and the width of the second socket is smaller than the diameter of the second locking hole.

[0017] In some technical schemes, the second valve has a third locking hole that cooperates with the first locking pin. When the second valve rotates to an open state, the third locking hole is aligned with the first locking pin to prevent the second valve from rotating through the inserted first locking pin; the first locking pin has a force-applying portion located on the outside of the second seat body; the second seat body is provided with a limiting hole that rotates with the pin body of the first locking pin, the pin body of the first locking pin and the force-applying portion are connected by a connecting rod, and the second seat body is provided with an avoidance groove for avoiding the connecting rod, and a groove wall on one side of the avoidance groove has a groove to form a stop shoulder and a guiding inclined surface arranged opposite to the stop shoulder. When the pin body of the first locking pin is in the exit position, it can be rotated until the connecting rod and the stop shoulder are abutted to prevent the pin body from extending; the hole edge of the third locking hole can abut against the front end of the pin body of the first locking pin through the inclined surface, so that when the second valve rotates, the pin body of the first locking pin is pushed back to abut against the guiding inclined surface to guide the connecting rod and the stop shoulder to be staggered.

[0018] In some technical solutions, a fluid connector is provided, comprising:

[0019] The connecting end comprises a first seat body and a first valve rotatably disposed on the first seat body;

[0020] The docking end has a second seat body and a second valve rotatably disposed on the second seat body, and the first valve and the second valve are connected through a torque transmission structure so as to be able to rotate synchronously;

[0021] The operating part is located outside the first seat body and is fixedly connected to the first valve to drive the first valve to rotate. The first locking structure of the operating part and the second locking structure on the second seat body are relatively rotated around the rotation axis of the first valve to achieve axial locking.

[0022] Similar to the above technical solution, one seat body is provided with an operating portion, and the operating portion is locked and connected with the other seat body to complete the connection between the connecting end and the docking end. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the exploded structure of a fluid connector provided in an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the structure of a fluid connector provided by an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of the connection end provided by an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the structure of the docking end provided by an embodiment of the utility model;

[0028] Figure 5 A schematic diagram of a cross-sectional structure in one direction of a fluid connector provided by an embodiment of the utility model;

[0029] Figure 6 A schematic diagram of a cross-sectional structure in another transverse direction of a fluid connector provided by an embodiment of the utility model;

[0030] Figure 7 A schematic diagram of the structure of the operating unit provided by an embodiment of the utility model;

[0031] Figure 8 This is a schematic structural diagram of the second seat body provided in an embodiment of the utility model.

[0032] The following are marked in the accompanying drawings:

[0033] Connecting end 100; docking end 200; operating portion 300;

[0034] A first valve 1-1, a first seat body 1-2, a first plug column 1-11, a second plug hole 1-12, a second locking hole 1-13, a second locking pin 1-3, a through groove 1-4, and a connecting screw 1-5;

[0035] The second valve 2-1, the second seat body 2-2, the second plug column 2-11, the first plug hole 2-12, the first locking hole 2-13, the third locking hole 2-14, the first locking pin 2-3, the clamping protrusion 2-21, the avoidance groove 2-22, the stop shoulder 2-23, the guiding inclined surface 2-24, the force applying part 2-31, and the connecting rod 2-32;

[0036] Arc-shaped slot 3-1, guide slot 3-2;

[0037] A communicating channel 1, a communicating hole 2, a first locking structure 3, a second locking structure 4, and a pagoda head 5.

[0038] Wherein A represents the movement direction of the first locking structure relative to the second locking structure along the direction of entering and exiting the locking state;

[0039] Wherein B represents the movement direction of the operating part relative to the first seat body to drive the first valve to realize the opening and closing movement. DETAILED DESCRIPTION

[0040] The embodiment of the utility model discloses a fluid connector, which can effectively solve the problem of inconvenient connection operation of the fluid connector.

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] See also Figure 1-Figure 8 , Figure 1 A schematic diagram of the exploded structure of a fluid connector provided in an embodiment of the utility model; Figure 2 A schematic diagram of the structure of a fluid connector provided by an embodiment of the utility model; Figure 3 A schematic diagram of the structure of the connection end provided by an embodiment of the utility model; Figure 4 A schematic diagram of the structure of the docking end provided by an embodiment of the utility model; Figure 5 A schematic diagram of a cross-sectional structure in one direction of a fluid connector provided by an embodiment of the utility model; Figure 6 A schematic diagram of a cross-sectional structure in another transverse direction of a fluid connector provided by an embodiment of the utility model; Figure 7 A schematic diagram of the structure of the operating unit provided by an embodiment of the utility model; Figure 8 This is a schematic structural diagram of the second seat body provided in an embodiment of the utility model.

[0043] In some embodiments, a fluid connector is provided, comprising at least two connectors. For the convenience of description, one of the connectors is a connecting end 100, and the other connector is a docking end 200. The connecting end 100 and the docking end 200 are connected in cooperation, so that in the connected state, the positions of the two can be fixed and the communication channel 1 between them can be connected. Specifically, both connectors have a seat body, and the above-mentioned communication channel 1 is arranged on the seat body. The seat bodies of the two connectors are respectively connected to other channel structures to realize that other channel structures are connected through this fluid connector.

[0044] For the convenience of description, the seat body of the connecting end 100 is the first seat body 1-2, and the seat body of the docking end 200 is the second seat body 2-2. That is, the connecting channel 1 on the first seat body 1-2 is used to communicate with the corresponding connecting channel 1 on the second seat body 2-2. The connection here can be achieved by directly abutting the two connecting channels 1 to achieve connection, or it can be achieved indirectly through the connecting holes 2 on the valves between each other. Generally, when docking, the connecting channel 1 on the first seat body 1-2 and the connecting channel 1 on the second seat body 2-2 are aligned, and then the valves therein are opened to achieve penetration (communication), thereby allowing the fluid to flow.

[0045] At least one of the connection end 100 and the docking end 200 is provided with a movable first valve 1-1, and the corresponding connecting channel 1 can be opened and closed by the movement of the first valve 1-1. It should be noted that at least one of the connection end 100 and the docking end 200 is provided with the first valve 1-1, which means that one of the connection end 100 or the docking end 200 can be provided with the first valve 1-1, or the connection end 100 and the docking end 200 are respectively provided with the first valve 1-1, and the corresponding connecting channel 1 can be opened and closed by providing the valve to form a valve structure with the corresponding seat body. Taking the connection end 100 having the first valve 1-1 as an example, the first valve 1-1 can be movably connected to the first seat body 1-2, such as being rotatably connected to the first seat body 1-2, or being slidably connected to the first seat body 1-2; so that the first valve 1-1 can move relative to the first seat body 1-2, and can move to close the connecting channel 1 on the first seat body 1-2, or can move to open the connecting channel 1 on the first seat body 1-2. It should be noted that, in order to facilitate external connection, the first seat body 1-2 and the second seat body 2-2 are both provided with a detachable pagoda head 5 to facilitate the connection between the connecting channel 1 and the external channel.

[0046] Generally speaking, the first valve 1-1 or other valve for closing the communication channel 1 is provided with a communication hole 2, so that when the communication hole 2 on the valve is aligned with the corresponding communication channel 1, the valve opens the corresponding communication channel 1, and when the communication hole 2 on the valve and the corresponding communication channel 1 are completely misaligned, the entity part of the valve is blocked on the communication channel 1 to close the communication channel 1. Of course, other ways of opening and closing the communication channel 1 are also possible.

[0047] The first valve 1-1 is in transmission cooperation with the operating part 300, so that when the operating part 300 moves, it can drive the first valve 1-1 to move, and through the movement of the first valve 1-1, the first valve 1-1 can realize the opening and closing action. The transmission cooperation mode can be fixed connection or transmission through a transmission mechanism, such as a lever mechanism, a gear mechanism, etc., and the fixed connection mode can be a detachable fixed connection or a non-detachable fixed connection, such as an integral molding connection, welding, etc., and the detachable fixed connection can be a plug-in connection, a screw connection, etc.

[0048] The operating part 300 is movably arranged on the first seat body 1-2, and is generally arranged on the outside of the first seat body 1-2 for easy operation. The operating part 300 is generally an external force application position to facilitate the operation of the valve movement therein. The operating part 300 is movably arranged on the first seat body 1-2, and can be directly connected to the first seat body 1-2 through a movable connection structure, or can indirectly achieve the above effect. If the first valve 1-1 is movably connected to the first seat body 1-2, and the operating part 300 is fixedly connected to the first valve 1-1, then the corresponding operating part 300 and the first seat body 1-2 are indirectly movably connected. It is understandable that the operating part 300 is movably arranged on the first seat body 1-2, and the operating part 300 can be axially rotatably arranged on the first seat body 1-2.

[0049] A locking device is provided between the connecting end 100 and the butt end 200, and the connecting end 100 and the butt end 200 are locked by the locking device, so as to achieve overall locking mainly through locking in the butt direction. The locking device mainly includes a first locking structure 3 and a second locking structure 4 that cooperate with each other, and the first locking structure 3 and the second locking structure 4 are locked by snap connection, thread connection or other methods.

[0050] At least one set of the matching first locking structures 3 and second locking structures 4 includes: the first locking structure 3 is arranged on the operating part 300, and the second locking structure 4 is arranged on the second seat body 2-2, so as to achieve locking between the second seat body 2-2 and the first locking structure 3, thereby achieving locking between the first seat body 1-2 and the second seat body 2-2, so as to achieve locking between the connecting end 100 and the docking end 200.

[0051] During the connection process, the first locking structure 3 and the second locking structure 4 move relative to each other to enter and exit the locked state, and the connection end 100 and the docking end 200 are locked in the locked state. When the operating portion 300 moves relative to the second seat body 2-2, the first locking structure 3 can move relative to the second locking mechanism to enter and exit the locked state.

[0052] The moving direction of the first locking structure 3 relative to the second locking structure 4 to enter and exit the locked state is consistent with the moving direction of the first valve 1-1 to open and close, that is, consistent with the moving direction of the operating part 300 to drive the first valve 1-1 to open and close. The moving direction of the operating part 300 is consistent with that of the first valve 1-1, so that when the operating part 300 moves relative to the first seat body 1-2 to drive the first valve 1-1 to move along the opening and closing direction (the opening and closing direction is the moving direction of the first valve 1-1 to open and close), that is, when the operating part 300 moves relative to the first seat body 1-2 to drive the first valve 1-1 to move along the above-mentioned moving direction, it can simultaneously drive the first locking structure 3 relative to the second locking structure 4 along the moving direction of entering and exiting the locked state. Generally speaking, when the first valve 1-1 is driven to open, the first locking structure 3 is correspondingly driven to enter the locked state relative to the second locking structure 4. Generally speaking, when the first valve 1-1 starts to move, the corresponding first locking structure 3 moves relative to the second locking structure 4. When locking is achieved, the first valve 1-1 has moved but has not yet opened, and then the operating part 300 continues to move, the first locking structure 3 continues to move relative to the second locking structure 4, and remains in the locked state, while the first valve 1-1 opens.

[0053] It should be noted that when the operating part 300 moves to drive the first valve 1 - 1 to open and close, the first valve 1 - 1 and the operating part 300 may move in the same direction.

[0054] In some embodiments, when the above-mentioned fluid connector is used, after the connection end 100 and the docking end 200 are docked, the first seat body 1-2 and the second seat body 2-2 are relatively fixed, and then a force is applied to the operating part 300 so that the operating part 300 moves relative to the first seat body 1-2. In the process of driving the first valve 1-1 to move, the first locking structure 3 can be driven to move relative to the second locking structure 4 to enter a locked state, and at the same time, the first valve 1-1 can realize the corresponding opening or closing of the connecting channel 1. In the above operation, after the connection end 100 is docked with the docking end 200 at a predetermined angle, the operating part 300 is operated to move along a preset direction, so that the docking end 200 and the connection end 100 can be locked, and the opening and closing of the first valve 1-1 can be realized. By adding the operating part 300, the connection between the connection end 100 and the docking end 200 and the opening and closing of the valve are realized, and the relative rotation of the two seats is avoided, making the operation more convenient. By setting the operating part 300 on the first seat body 1-2, and locking the operating part 300 with the second seat body 2-2, the connection end 100 and the docking end 200 can be locked. The locking structure is locked by the movement of the operating part 300. Compared with setting the locking structure on the two valve seats, the structure is simpler and the operation is more convenient. In summary, the fluid connector can effectively solve the problem of inconvenient connection operation of the current fluid connector.

[0055] In some embodiments, for the convenience of operation, the first valve 1-1 can be rotatably connected to the first seat body 1-2 to open and close the connecting channel 1 on the first seat body 1-2. The first valve 1-1 has a connecting hole 2, and when the entity of the first valve 1-1 rotates to the connecting channel 1, the connecting channel 1 can be closed; and when the connecting hole 2 on the first valve 1-1 and the connecting channel 1 have an overlapping part, they are connected. Generally speaking, when the connecting hole 2 and the connecting channel 1 completely overlap, the final connection is completed, that is, the connection with the maximum flow is obtained. It can be understood that the first valve 1-1 is rotatably connected to the first seat body 1-2, and the first valve 1-1 can be axially rotatably connected to the first seat body 1-2 along its axial direction.

[0056] In some embodiments, the operating part 300 can be relatively fixed to the first valve 1-1, so that the operating part 300 is constrained to be able to rotate only around the rotation axis of the first valve 1-1. Generally speaking, the operating part 300 is located outside the first seat body 1-2, so a connecting piece needs to be provided to pass through the first seat body 1-2, one end of the connecting piece is fixedly connected to the first valve 1-1 in the first seat body 1-2, and the other end is fixedly connected to the operating part 300 outside the first seat body 1-2. It is understandable that a movable groove for the above-mentioned connecting piece to move is provided on the first seat body 1-2 to realize the opening and closing movement of the first valve 1-1.

[0057] In some embodiments, in order to cooperate with the valve to rotate and open and close, correspondingly, in the locked state, the first locking structure 3 and the second locking structure 4 that match each other can be abutted along the axial direction of the first valve 1-1 to achieve axial clamping. Specifically, a matching clamping shoulder is formed between the first locking structure 3 and the second locking structure 4 to achieve clamping. Specifically, the first locking structure 3 and the second locking structure 4 can be rotatably clamped, that is, one is provided with an arc-shaped clamping groove 3-1, and the other is a clamping protrusion 2-21 that matches the above-mentioned arc-shaped clamping groove 3-1.

[0058] In some embodiments, specifically, one of the first locking structure 3 and the second locking structure 4 can be an arc-shaped slot 3-1, and the other can be a protrusion 2-21 that matches the arc-shaped slot 3-1 to form a rotational locking connection. Specifically, the second locking structure 4 can be a protrusion 2-21, and the first locking structure 3 can be an arc-shaped slot 3-1. The slot width direction of the arc-shaped slot 3-1 is consistent with the axial direction of the first valve 1-1, so that the protrusion 2-21 and the slot wall of the arc-shaped slot 3-1 are abutted against each other in the axial direction to achieve axial locking. During docking, the arc groove 3-1 and the cam 2-21 are staggered so that along the axial direction of the first valve 1-1, the cam 2-21 can move relative to the arc groove 3-1 until it is axially aligned with the arc groove 3-1. The cam 2-21 rotates around the axis relative to the arc groove 3-1 to enter the arc groove 3-1 to achieve axial locking. Due to the extended length of the arc groove 3-1, the cam 2-21 can continue to rotate after entering the arc groove 3-1 until the first valve 1-1 completes the opening (opening) or closing action.

[0059] When multiple sets of matching first locking structures 3 and second locking structures 4 are provided, the first locking structures 3 can all be arc-shaped slots 3-1, or part of the first locking structures 3 can be arc-shaped slots 3-1, and the other part of the first locking structures 3 can be protrusions 2-21 matching with the arc-shaped slots 3-1 on the second locking structures 4.

[0060] In some embodiments, both the docking end 200 and the connecting end 100 can be provided with valves so that the respective communication channels 1 can be in a closed state when disconnected. Based on this, the docking end 200 can also include a second valve 2-1 that can be rotatably arranged on the second seat body 2-2 to open and close the communication channel 1 on the second seat body 2-2. Further, for the convenience of operation, it is preferred that after the connecting end 100 and the docking end 200 are docked, the operating part 300 is directly or indirectly connected to the second valve 2-1, so that when the first valve 1-1 is driven to move, the second valve 2-1 is driven to move at the same time. It should be noted that, generally in the axial direction, when the first seat body 1-2 and the second seat body 2-2 are abutted or relatively fixed, it is considered to be a docking state, and at this time, the arc-shaped card groove 3-1 is aligned with the axial direction of the card protrusion 2-21. It can be understood that the second valve 2-1 is rotatably connected to the second seat body 2-2, and the second valve 2-1 can be axially rotatably connected to the second seat body 2-2 along its axial direction.

[0061] In some embodiments, the first valve 1-1 and the second valve 2-1 can be connected along the axial plug-in connection so that the first valve 1-1 can drive the second valve 2-1 to rotate, that is, when docking, the first valve 1-1 and the second valve 2-1 complete the axial plug-in, and then the operating part 300 rotates to drive the first valve 1-1 and the second valve 2-1 to rotate synchronously, so that the first locking structure 3 and the second locking structure 4 complete the locking, and the first valve 1-1 and the second valve 2-1 are opened synchronously.

[0062] In some embodiments, in the docking state, the first valve 1-1 and the second valve 2-1 may be connected by other torque transmission structures, such as matching tooth-groove structures, in addition to being plug-in connected by a plug-in structure to transmit torque.

[0063] In some embodiments, the first valve 1-1 and the second valve 2-1 may be in direct contact, that is, the connecting holes 2 therebetween are directly connected or connected through a sealing ring, or they may be connected through corresponding parts of the first seat body 1-2 and the second seat body 2-2, and the plug-in structure passes through the above-mentioned seat bodies to achieve torque transmission.

[0064] In some embodiments, in order to facilitate plug-in connection, the plug-in connection can be achieved through plug-in columns and sockets, such as a plug-in column is provided on the first valve 1-1, and a socket is provided on the second valve 2-1; and when the plug-in connection is achieved through multiple sets of matching sockets and plug-in columns, some of the plug-in columns can be provided on the first valve 1-1, and the other part of the plug-in columns can be provided on the second valve 2-1. Specifically, it can be set as needed.

[0065] In some embodiments, in order to prevent the first valve 1-1 or the second valve 2-1 from rotating randomly in the disconnected state, a first locking pin 2-3 is generally provided on the second seat body 2-2, and a first locking hole 2-13 matching with the first locking pin 2-3 is provided on the second valve 2-1, so that when the second valve 2-1 is in the closed state, the first locking pin 2-3 enters the first locking hole 2-13 under the action of the elastic member, preventing the second valve 2-1 from rotating relative to the second seat body 2-2, so as to keep it in the closed state.

[0066] Correspondingly, a second locking pin 1-3 may be provided on the first seat body 1-2, and a second locking hole 1-13 matching with the second locking pin 1-3 may be provided on the first valve 1-1, so that when the first valve 1-1 is in a closed state, the second locking pin 1-3 enters into the second locking hole 1-13 under the action of an elastic member, thereby preventing the first valve 1-1 from rotating relative to the first seat body 1-2, so as to maintain the first valve 1-1 in a closed state.

[0067] In some embodiments, for the convenience of operation, a first ejector may be provided on the first valve 1-1, and a second ejector may be provided on the second valve 2-1. When the connecting end 100 and the docking end 200 are aligned and move along the docking direction, the first ejector pushes the first locking pin 2-3 out of the first locking hole 2-13, and the second ejector pushes the second locking pin 1-3 out of the second locking hole 1-13. Before the docking is completed, the first locking pin 2-3 exits the first locking hole 2-13 so as not to interfere with the rotation of the second valve 2-1, and the second locking pin 1-3 exits the second locking hole 1-13 so as not to interfere with the rotation of the first valve 1-1.

[0068] For convenience, both the first ejector and the second ejector can be provided with plug-in columns for plugging. Specifically, the first valve 1-1 can have a first plug-in column 1-11, and the second valve 2-1 can have a first plug hole 2-12 plugged and connected with the first plug-in column 1-11. When the first locking pin 2-3 is provided on the second seat body 2-2, a first locking hole 2-13 that cooperates with the first locking pin 2-3 to prevent the second valve 2-1 from rotating can be provided at the first plug hole 2-12, so that when the first plug-in column 1-11 is inserted into the first plug hole 2-12, the first locking pin 2-3 withdraws from the first locking hole 2-13, so that when the first plug-in column 1-11 is inserted into the first plug hole 2-12 to complete the plugging during docking, the first plug-in column 1-11 is equivalent to the first ejector pushing the first locking pin 2-3 to withdraw, so that the second valve 2-1 can continue to rotate.

[0069] Correspondingly, the second valve 2-1 can be provided with a second plug post 2-11, and the first valve 1-1 can be provided with a second plug hole 1-12 plugged in and connected with the second plug post 2-11. When the second locking pin 1-3 is provided on the first seat body 1-2, a second locking hole 1-13 cooperating with the second locking pin 1-3 to prevent the first valve 1-1 from rotating is provided at the second plug hole 1-12, so that when the second plug post 2-11 is inserted into the second plug hole 1-12, the second locking pin 1-3 withdraws from the second locking hole 1-13, so that when the second plug post 2-11 is inserted into the second plug hole 1-12 to complete the plugging during docking, the second plug post 2-11 is equivalent to a second ejector to push the second locking pin 1-3 out, so that the first valve 1-1 can continue to rotate.

[0070] It should be noted that, as mentioned above, the first valve 1-1 and the second valve 2-1 are not only plugged in through at least one set of matching first plug posts 1-11 and first plug holes 2-12, but also plugged in through at least one set of matching second plug posts 2-11 and second plug holes 1-12.

[0071] In some embodiments, for the convenience of operation, the operating part 300 can be arranged on the outside of the first seat body 1-2. The operating part 300 is a lever structure, an arc plate structure or other structure, whichever can realize the operation. Further, for the convenience of operation and good covering effect, the operating part 300 is preferably a sleeve, which is sleeved on the outside of the first seat body 1-2, which can protect the first seat body 1-2 and conveniently set the rotating slot or the protrusion 2-21. In addition, the sleeve can be held for operation, making it very convenient to apply torque. In addition, in order to better apply torque, the surface of the sleeve can have a frosted structure to facilitate force application.

[0072] In some embodiments, in order to facilitate the realization of the rotational locking, the inner wall of the sleeve may be provided with two arc-shaped locking grooves 3-1 arranged opposite to each other, and the outer wall of the second seat body 2-2 may be provided with two corresponding locking protrusions 2-21. A guide groove 3-2 is formed between the two arc-shaped locking grooves 3-1 to guide the locking protrusion 2-21 to move along the guide groove 3-2 in the direction of the rotation axis of the first valve 1-1 until it is aligned with the arc-shaped locking groove 3-1, and then the sleeve is rotated so that the locking protrusion 2-21 enters the arc-shaped locking groove 3-1 from the guide groove 3-2, and abuts against the groove wall of the arc-shaped locking groove 3-1 along the axis direction of the first valve 1-1, so as to realize axial locking and enter a locked state.

[0073] In some embodiments, in order to facilitate the connection between the first seat body 1-2 and the sleeve, a connecting screw 1-5 is preferably further included, wherein the first seat body 1-2 is provided with an arc-shaped through groove 1-4, and the connecting screw 1-5 passes through the through hole on the sleeve and the through groove 1-4 and is threadedly connected to the first valve 1-1, and the head of the screw abuts against the outer end of the through hole on the sleeve to fix the operating part 300 on the first valve 1-1. The first seat body 1-2 and the sleeve can be connected by only one connecting screw 1-5, or by a plurality of dispersed connecting screws 1-5.

[0074] In some embodiments, for the convenience of setting, the first valve 1-1 may have two first plug posts 1-11 and two second plug holes 1-12 that are set far apart from each other, and these four structures are evenly arranged around the rotation axis of the first valve 1-1. Correspondingly, the second valve 2-1 may have two second plug posts 2-11 and two first plug holes 2-12 that are set far apart from each other, and these four structures are evenly arranged around the rotation axis of the second valve 2-1. A first locking hole 2-13 is arranged at one of the first plug holes 2-12, and a second locking hole 1-13 is arranged at the second plug hole 1-12.

[0075] In some embodiments, the first socket 2-12 and the second socket 1-12 can be both circumferentially elongated; in the circumferential direction of the rotation axis of the first valve 1-1, the first locking hole 2-13 is located in the middle of the first socket 2-12, and the corresponding second locking hole 1-13 is located in the middle of the second socket 1-12; in the radial direction of the rotation axis of the first valve 1-1, the width of the first socket 2-12 is smaller than the diameter of the first locking hole 2-13 to avoid the first locking pin 2-3 from disengaging from the first locking hole 2-13, and the width of the second socket 1-12 is smaller than the diameter of the second locking hole 1-13 to avoid the second locking pin 1-3 from disengaging from the second locking hole 1-13.

[0076] In some embodiments, the second valve 2-1 may have a third locking hole 2-14 that matches the first locking pin 2-3. When the second valve 2-1 rotates to the open state, the third locking hole 2-14 is aligned with the first locking pin 2-3 to prevent the second valve 2-1 from rotating through the inserted first locking pin 2-3. After the docking end 200 and the connecting end 100 are docked and connected, the first valve 1-1 and the second valve 2-1 are both in the open state. At this time, the first locking pin 2-3 enters the third locking hole 2-14 to prevent the second valve 2-1 from rotating. The second valve 2-1 and the first valve 1-1 are locked, thereby indirectly preventing the first valve 1-1 from rotating and preventing the operating part 300 from rotating to prevent the clamping from disengaging, so that both remain in the open state to avoid arbitrary closure and arbitrary disconnection.

[0077] For the convenience of operation, it is preferred that the first locking pin 2-3 has a force-applying portion 2-31 located outside the second seat body 2-2, so as to facilitate the operation of the force-applying portion 2-31, so as to operate the first locking pin 2-3 to exit the third locking hole 2-14, thereby achieving unlocking, so as to operate the operating portion 300, to achieve opening of the valve and disconnection between the connecting end 100 and the docking end 200. It should be noted that the outside of the second seat body 2-2 can be the axial outside of the second seat body 2-2, or the radial outside of the second seat body 2-2.

[0078] In some instances, it is preferred that a limiting hole rotatably matched with the pin body of the first locking pin 2-3 is provided on the second seat body 2-2, wherein the pin body of the first locking pin 2-3 is connected to the force-applying portion 2-31 via a connecting rod 2-32, and an avoidance groove 2-22 for avoiding the connecting rod 2-32 is provided on the second seat body 2-2, wherein a groove wall on one side of the avoidance groove 2-22 has a groove to form a stop shoulder 2-23 and a guide slope 2-24 arranged opposite to the stop shoulder 2-23. Through the above arrangement, when the pin body of the first locking pin 2-3 is in the withdrawal position, it can be rotated until the connecting rod 2-32 abuts against the stop shoulder 2-23 to prevent the pin body from extending. During operation, the pin body is pushed to withdraw by manually operating the force-applying part 2-31, that is, it does not interfere with the rotation of the second valve 2-1. Then, force is continued to be applied to rotate the force-applying part 2-31 to drive the pin body to rotate, and the connecting rod 2-32 and the stop shoulder 2-23 are staggered and rotated to abut against the stop shoulder 2-23. Through the abutment of the stop shoulder 2-23, the elastic device is prevented from pushing the pin body out to keep it in the withdrawal position.

[0079] Furthermore, for the convenience of operation, it is preferred that the edge of the third locking hole 2-14 can be abutted against the front end of the pin body of the first locking pin 2-3 through a bevel, such as the edge of the third locking hole 2-14 is a chamfered structure to form a bevel, so that when the second valve 2-1 rotates, an axial thrust will be generated due to the abutment of the bevels to push the pin body to continue to move backward, so as to abut against the guide bevel 2-24 to guide the connecting rod 2-32 to be staggered with the shoulder 2-23, so as to no longer be constrained by the shoulder 2-23, so that the first locking pin 2-3 can move forward under the push of the elastic device.

[0080] In some examples, a fluid connector is provided, including: a connecting end 100, having a first seat body 1-2 and a first valve 1-1 rotatably disposed on the first seat body 1-2; a docking end 200, having a second seat body 2-2 and a second valve 2-1 rotatably disposed on the second seat body 2-2, the first valve 1-1 and the second valve 2-1 being connected through a torque transmission structure so as to be able to rotate synchronously; an operating part 300, located outside the first seat body 1-2, fixedly connected to the first valve 1-1 so as to be able to drive the first valve 1-1 to rotate, the first locking structure 3 of the operating part 300 and the second locking structure 4 on the second seat body 2-2 are relatively rotated around the rotation axis of the first valve 1-1 to achieve axial locking. Similar to the above technical solution, one seat body is provided with an operating part 300, and the operating part 300 is locked and connected with the other seat body to complete the connection between the connecting end 100 and the docking end 200. It can be understood that the first valve 1 - 1 can be axially rotatably disposed on the first seat body 1 - 2 , and the second valve 2 - 1 can be axially rotatably disposed on the second seat body 2 - 2 .

[0081] The connection end 100 , the docking end 200 and the operating portion 300 may all refer to the above-mentioned embodiments.

[0082] In some embodiments, a connection end of a fluid connector is provided, comprising a first seat body 1-2, a first valve 1-1 and an operating portion 300. The first seat body 1-2 mainly comprises a valve seat body and a valve cover, wherein the valve seat body and the valve cover are fixedly connected and form an assembly cavity matched with the first valve 1-1, so that the first valve can rotate around the axis of the valve seat body in the assembly cavity.

[0083] The valve seat body is provided with a communication channel 1, and the first valve is provided with a communication hole 2. For a dual-channel fluid connector, two communication channels 1 are correspondingly provided on the valve seat body, and two communication holes 2 are provided on the first valve 1-1. When the first valve 1-1 is rotated until the communication hole 2 is aligned with the communication channel 1, it is opened, that is, the communication channel 1 is opened, and when it is rotated until the entity part covers the communication channel 1, it is closed, that is, the communication channel 1 is closed. The valve seat body is detachably connected with a pagoda head to achieve communication between the communication channel and the external pipeline.

[0084] A window hole is provided on the side of the valve cover away from the valve seat body, and the middle part of the first valve 1-1 is exposed from the window hole, and the valve cover clamps the edge part of the first valve 1-1, so that the first valve 1-1 can only rotate around its own axis, but cannot move axially or radially.

[0085] The first valve 1-1 has a connecting hole 2 in the middle, and is provided with a plug-in structure for plugging with the second valve 2-1, such as the first plug post 1-11 and the second plug hole 1-12, which are respectively plugged with the plug hole and the plug post on the second valve 2-1. The connecting hole 2 in the middle of the first valve 1-1 is used to align with the connecting hole in the middle of the second valve 2-1 for connection, and then rotate synchronously to synchronously open the respective connecting channels 1 to complete the connection between the docking end 200 and the connecting end 100. The two first plug posts 1-11 are arranged at two sides far apart, and one of the first plug posts 1-11 can be slightly longer than the other to better push the first locking pin 2-3 in the first plug hole 2-12.

[0086] The two second plug holes 1-12 are arranged far apart, so that the first valve 1-1 and the second valve 2-1 are connected by four groups of plug holes and plug posts, and the four groups of plug-in components are evenly arranged around the rotation axis of the first valve 1-1 and are generally located at the same circumferential position. The plug posts and the plug holes extend along the axis direction of the first valve 1-1.

[0087] A second locking hole 1-13 is provided in the middle of at least one of the second insertion holes 1-12, a portion of the second insertion hole 1-12 overlaps a portion of the second locking hole 1-13, and the second locking pin 1-3 is slidably connected to the valve seat body along the axial direction of the first valve 1-1, and abuts against the valve seat body through an elastic device (spring or elastic body). When the second locking hole 1-13 is aligned with the second locking pin 1-3 in the circumferential direction, the first valve 1-1 is in a closed state, and the second locking pin 1-3 can slide into the second locking hole 1-13 under the action of the spring to prevent the first valve 1-1 from rotating. When in use, in the docking state, the second plug column 2-11 on the second valve 2-1 will be inserted into the second plug hole 1-12. Because of the partial overlap, the second locking pin 1-3 located in the second locking hole 1-13 will abut against the second plug column 2-11. As the second plug column 2-11 is inserted, the second locking pin 1-3 will be pushed out of the second locking hole 1-13, so that the operating part 300 can then drive the first valve 1-1 to rotate and enter the open state. The overlap can form a narrow hole in the second plug hole 1-12, and a thick cylindrical hole structure in the second locking hole 1-13.

[0088] Two arc-shaped through grooves 1-4 are arranged on two radially opposite sides of the valve cover, and connecting screws 1-5 are passed through the through grooves 1-4. After the connecting screws 1-5 pass through the through hole of the operating part 300 from the outside of the operating part 300, they pass through the through grooves 1-4 and are threadedly connected with the side of the first valve 1-1 inside. The through grooves 1-4 are arc-shaped so as not to interfere with the connecting screws 1-5 rotating with the operating part 300, and the connecting screws 1-5 are countersunk.

[0089] The operating part 300 is a sleeve structure, with an opening at one end for the second seat body 2-2 to be inserted, and an arc-shaped slot 3-1 is formed inside as a first locking structure for rotational engagement with the second seat body 2-2, with the rotation axis being consistent with the axis of the first valve 1-1. The other end of the operating part 300 has an inner protrusion to abut against the side of the valve seat body away from the valve cover, so that during the rotational engagement process, the operating part 300 mainly transmits axial force between it and the first seat body 1-2 through the inner protrusion, thereby avoiding a large axial force between the connecting screw 1-5 and the operating part 300.

[0090] In some embodiments, a butt end 200 of a fluid connector is provided, comprising a second seat body 2-2 and a second valve 2-1, wherein the second seat body 2-2 mainly comprises a valve seat body and a valve cover, wherein the valve seat body and the valve cover are fixedly connected and form an assembly cavity matched with the second valve 2-1, so that the second valve 2-1 can rotate around the valve seat body axis direction of the second seat body 2-2 in the assembly cavity.

[0091] The valve seat body is provided with a communication channel 1, and the second valve 2-1 is provided with a communication hole 2. For a dual-channel fluid connector, two communication channels 1 are correspondingly provided on the valve seat body, and two communication holes 2 are provided on the second valve 2-1. When the second valve 2-1 is rotated until the communication hole 2 is aligned with the communication channel 1, it is opened, that is, the communication channel 1 is opened, and when it is rotated until the entity part covers the communication channel 1, it is closed, that is, the communication channel 1 is closed. The valve seat body is detachably connected with a pagoda head to achieve communication between the communication channel and the external pipeline.

[0092] A window hole is provided on one side of the valve cover away from the valve seat body, and the middle part of the second valve 2-1 is exposed from the window hole. The valve cover clamps the edge part of the second valve 2-1 so that the second valve 2-1 can only rotate around its own axis but cannot move axially or radially.

[0093] The middle part of the second valve 2-1 has a connecting hole 2, and a plug-in structure plugged with the second valve 2-1 is provided, such as the second plug post 2-11 and the first plug hole 2-12, which are respectively plugged with the plug hole and the plug post on the first valve 1-1. The connecting hole 2 in the middle of the second valve 2-1 is used to align with the connecting hole 2 in the middle of the first valve 1-1 for connection, and then rotate synchronously to synchronously open the respective connecting channels 1 to complete the connection between the docking end 200 and the connecting end 100. The two second plug posts 2-11 are arranged at two sides far apart, and one of the second plug posts 2-11 can be slightly longer than the other to better push the second locking pin 1-3 in the second plug hole 1-12.

[0094] The two first plug holes 2-12 are arranged far apart from each other, so that the first valve 1-1 and the second valve 2-1 are connected by four groups of plug holes and plug posts, and the four groups of plug-in components are evenly arranged around the rotation axis of the second valve 2-1, and are generally located at the same circumferential position, all located inside the window. The plug posts and the plug holes extend along the axis direction of the second valve 2-1.

[0095] A first locking hole 2-13 is provided in the middle of at least one of the first insertion holes 2-12, and a portion of the first insertion hole 2-12 and a portion of the first locking hole 2-13 overlap, and the first locking pin 2-3 is slidably connected to the valve seat body along the axial direction of the second valve 2-1, and abuts against the valve seat body through an elastic device (spring or elastic body). When the first locking hole 2-13 and the first locking pin 2-3 are aligned in the circumferential direction, the second valve 2-1 is in a closed state, and the first locking pin 2-3 can slide into the first locking hole 2-13 under the action of the spring to prevent the second valve 2-1 from rotating. When in use, in the docking state, the first plug column 1-11 on the first valve 1-1 will be inserted into the first plug hole 2-12. Because of the partial overlap, the first locking pin 2-3 located in the first locking hole 2-13 will abut against the first plug column 1-11. As the docking proceeds, the first plug column 1-11 continues to be inserted, which will push the first locking pin 2-3 out of the first locking hole 2-13, so that the first valve 1-1 can then drive the second valve 2-1 to rotate and enter the open state. The overlap can form a narrow hole in the second plug hole 1-12, and a thick cylindrical hole structure in the second locking hole 1-13.

[0096] When the second valve 2-1 rotates to the open state, the third locking hole 2-14 on the second valve 2-1 will be aligned with the first locking pin 2-3, and the first locking pin 2-3 will enter the third locking hole 2-14 under the action of the elastic device to prevent the second valve 2-1 from rotating relative to the second seat body 2-2. Due to the plug-in relationship, the first valve 1-1 cannot rotate, and the operating part 300 cannot continue to rotate. This allows the connecting end 100 and the docking end 200 to maintain a connected state. After that, the force-applying part 2-31 is operated to push the first locking pin 2-3 out of the third locking hole 2-14, and the second valve 2-1 can be indirectly driven to rotate by the operating part 300.

[0097] The first locking pin 2-3 includes a columnar pin body, a force-applying portion 2-31 and a connecting rod 2-32, wherein the valve cover has an avoidance groove 2-22, and the force-applying portion 2-31 is located on the outside of the valve cover; the connecting rod 2-32 passes through the avoidance groove 2-22, and the two ends are respectively connected to the columnar pin body and the force-applying portion 2-31. The columnar pin body is rotatably mounted on the valve seat body. A groove is formed on one side of the avoidance groove 2-22, and the groove wall on one side of the groove close to the connecting end 100 is a shoulder 2-32, and the groove wall on the other side is a guiding slope 2-24, and the portion close to the groove gradually tilts away from the connecting end 100 to form a guiding slope 2-24. The opening of the third locking hole 2-14 forms a bell mouth. When the front end of the columnar pin body withdraws to the bell mouth, the second valve 2-1 can rotate at this time, and the connecting rod 2-32 is located on the side of the stop shoulder 2-23 away from the connection end. At this time, the first locking pin 2-3 can be driven to rotate as a whole through the force-applying part 2-31. The connecting rod 2-32 is staggered with the stop shoulder 2-23, rotates to align, and then is restricted from extending by the stop shoulder 2-23. At this time, the second valve 2-1 rotates, the bell mouth and the front end of the columnar pin body are against each other through the inclined surface, and then continue to rotate, overcome the elastic force of the elastic device at the first locking pin 2-3, and push the columnar pin body backward. At this time, the connecting rod 2-32 is against the guiding inclined surface 2-24, and continues to push backward until the disk surface of the second valve 2-1 is against the columnar pin body, and the guiding inclined surface completes the guidance. At this time, the connecting rod 2-32 is staggered with the stop shoulder 2-23, and then can continue to extend under the action of the elastic device.

[0098] In some embodiments, at the early stage of docking, the first plug post 1-11 is aligned with the first socket 2-12, the second plug post 2-11 is aligned with the second socket 1-12, the connecting hole on the first valve 1-1 is aligned with the connecting hole on the second valve 2-1, and when there is a stop structure between the first seat body 1-2 and the second seat body 2-2, they should also be aligned, and the locking protrusion 2-21 is aligned with the guide groove 3-2.

[0099] Then the connecting end and the docking end move relative to each other in the axial direction until the first valve 1-1 and the second valve 2-1 are in contact, which may be through a sealing ring. At this time, the first plug 1-11 is inserted into the first plug hole 2-12, and the first locking pin 2-3 in the first locking hole 2-13 is pushed out; the second plug 2-11 is inserted into the second plug hole 1-12, and the second locking pin 2-3 in the second locking hole 1-13 is pushed out. At this time, the clamping protrusion 2-21 is located at one end of the arc-shaped clamping groove 3-1 and is axially aligned. Then the operating part 300 is rotated to drive the first valve 1-1 to rotate, and the first valve 1-1 drives the second valve 2-1 to rotate until each other opens its own communication channel. At this time, the "click" sound of the first locking pin 2-3 entering the third locking hole 2-14 can be heard. That is, the final connection is completed, that is, the connection between the docking end 100 and the connecting end 200.

[0100] When opening, the force-applying part 2-31 is operated to make the first locking pin 2-3 withdraw from the third locking hole 2-14, and then rotate to be blocked by the blocking shoulder 2-23. At this time, the force-applying part 2-31 can be released, and the operating part 300 can be operated to rotate in the opposite direction, driving the first valve 1-1 and the second valve 2-1 to rotate in the opposite direction to close the corresponding communication channel 1. At this time, the second valve 2-1 will push the first locking pin 2-3 back, so that under the action of the guiding inclined surface 2-24, the first locking pin 2-3 is reset, that is, staggered with the blocking shoulder 2-23.

[0101] After rotating into place, the latching protrusion 2-21 is located in the guide groove 3-2 and disengaged from the arc-shaped latching groove 3-1, and then the connecting end 100 and the docking end 200 are moved away from each other, the first plug post 1-11 is disengaged from the first plug hole 2-12, and the first locking pin 2-3 enters the first locking hole 2-13; the second plug post 2-11 is disengaged from the second plug hole 1-12, and the second locking pin 2-3 enters the second locking hole 1-13. At this time, the first valve 1-1 and the second valve 2-1 are both stopped.

[0102] In some application scenarios, the pipeline connected to the first seat body 1-2 of the connecting end 100 and the pipeline connected to the second seat body 2-2 of the docking end 200 need to remain fixed. In these application scenarios, the fluid connector provided by the utility model is used. After the connecting end 100 and the docking end 200 are respectively connected to the pipelines, and when the connecting end 100 and the docking end 200 are docked, the opening and closing of the corresponding fluid channel 1 is achieved by the operating part 4 driving the valve to rotate. Therefore, the first seat body 1-2 and the second seat body 2-2, as well as the corresponding matching pipelines can be kept fixed, so it can well meet the needs of these application scenarios.

[0103] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0104] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fluid connector, characterized in that: The invention comprises a connecting end (100), a docking end (200) and an operating part (300); a connecting channel (1) on a first seat body (1-2) of the connecting end (100) is used to communicate with a connecting channel (1) on a second seat body (2-2) of the docking end (200); at least one of the connecting end (100) and the docking end (200) is provided with a first valve (1-1) which is movable to open and close the corresponding connecting channel (1); the first valve (1-1) is in transmission cooperation with the operating part (300); the operating part (300) is movably arranged on the first seat body (1-2); the second seat body (2-2) has a valve which is movable to open and close the corresponding connecting channel (1); The second locking structure (4) cooperates with the first locking structure (3) on the operating part (300) to achieve locking of the connecting end (100) and the docking end (200) in a locked state; the first locking structure (3) moves relative to the second locking structure (4) to enter and exit the locked state in a direction that is consistent with the direction of movement of the first valve (1-1) to open and close, so that when the operating part (300) moves relative to the first seat body (1-2) to drive the first valve (1-1) to move along the movement direction, the first locking structure (3) can be driven to move relative to the second locking structure (4) along the movement direction of entering and exiting the locked state.

2. The fluid connector according to claim 1, characterized in that: The first valve (1-1) is rotatably connected to the first seat body (1-2), and the operating portion (300) is relatively fixed to the first valve (1-1); in a locked state, the first locking structure (3) and the second locking structure (4) are in abutment along the axial direction of the first valve (1-1).

3. The fluid connector according to claim 2, characterized in that: One of the first locking structure (3) and the second locking structure (4) is an arc-shaped slot (3-1), and the other is a locking protrusion (2-21) matched with the arc-shaped slot (3-1).

4. The fluid connector according to claim 3, characterized in that: The docking end (200) further comprises a second valve (2-1) rotatably arranged on the second seat body (2-2) so as to open and close the connecting passage (1) on the second seat body (2-2); the first valve (1-1) and the second valve (2-1) are plug-connected along the axial direction.

5. The fluid connector according to claim 4, characterized in that: The first valve (1-1) has a first plug post (1-11), the second valve (2-1) has a first plug hole (2-12) plugged with the first plug post (1-11), the second seat (2-2) is provided with a first locking pin (2-3), the first plug hole (2-12) is provided with a first locking hole (2-13) matched with the first locking pin (2-3) to prevent the second valve (2-1) from rotating, so that when the first plug post (1-11) is inserted into the first plug hole (2-12), the first locking pin (2-3) exits the first locking hole (2-13); The second valve (2-1) has a second plug post (2-11), the first valve (1-1) has a second plug hole (1-12) plugged into and matched with the second plug post (2-11), the first seat body (1-2) is provided with a second locking pin (1-3), and the second plug hole (1-12) is provided with a second locking hole (1-13) matched with the second locking pin (1-3) to prevent the first valve (1-1) from rotating, so that when the second plug post (2-11) is inserted into the second plug hole (1-12), the second locking pin (1-3) exits the second locking hole (1-13).

6. The fluid connector according to claim 5, characterized in that: The operating portion (300) is a sleeve, which is sleeved on the outside of the first seat body (1-2).

7. The fluid connector according to claim 6, characterized in that: The inner wall of the sleeve is provided with two arc-shaped grooves (3-1) arranged opposite to each other, and the outer wall of the second seat body (2-2) is provided with two corresponding protrusions (2-21).

8. The fluid connector according to claim 7, characterized in that: It also includes a connecting screw (1-5), and the first seat body (1-2) is provided with an arc-shaped through groove (1-4). The connecting screw (1-5) passes through the through hole of the sleeve and the through groove (1-4) and is threadedly connected to the first valve (1-1) to fix the operating part (300) on the first valve (1-1).

9. The fluid connector according to claim 8, characterized in that: The first plug hole (2-12) and the second plug hole (1-12) are both in the shape of an elongated strip along the circumferential direction; in the circumferential direction of the rotation axis of the first valve (1-1), the first locking hole (2-13) is located in the middle of the first plug hole (2-12), and the second locking hole (1-13) is located in the middle of the second plug hole (1-12); in the radial direction of the rotation axis of the first valve (1-1), the width of the first plug hole (2-12) is smaller than the diameter of the first locking hole (2-13), and the width of the second plug hole (1-12) is smaller than the diameter of the second locking hole (1-13).

10. The fluid connector according to claim 9, characterized in that: The second valve (2-1) has a third locking hole (2-14) matched with the first locking pin (2-3); when the second valve (2-1) rotates to an open state, the third locking hole (2-14) is aligned with the first locking pin (2-3) so as to prevent the second valve (2-1) from rotating by the inserted first locking pin (2-3); the first locking pin (2-3) has a force-applying portion (2-31) located outside the second seat body (2-2); the second seat body (2-2) is provided with a limiting hole that is rotationally matched with the pin body of the first locking pin (2-3); the pin body of the first locking pin (2-3) is connected to the force-applying portion (2-31) via a connecting rod (2-32); the second seat body (2-2) is provided with a connecting rod (2-33); An avoidance groove (2-22) is provided for avoiding the connecting rod (2-32); a groove wall on one side of the avoidance groove (2-22) has a groove to form a stop shoulder (2-23) and a guide inclined surface (2-24) arranged opposite to the stop shoulder (2-23); when the pin body of the first locking pin (2-3) is in the withdrawal position, it can be rotated until the connecting rod (2-32) abuts against the stop shoulder (2-23) to prevent the pin body from extending; the hole edge of the third locking hole (2-14) can abut against the front end of the pin body of the first locking pin (2-3) through the inclined surface, so that when the second valve (2-1) rotates, the pin body of the first locking pin (2-3) is pushed back to abut against the guide inclined surface (2-24) to guide the connecting rod (2-32) and the stop shoulder (2-23) to be offset.

11. A fluid connector, characterized in that: include: A connecting end (100) having a first seat body (1-2) and a first valve (1-1) rotatably arranged on the first seat body (1-2); The docking end (200) comprises a second seat body (2-2) and a second valve (2-1) rotatably arranged on the second seat body (2-2), wherein the first valve (1-1) and the second valve (2-1) are connected via a torque transmission structure so as to be able to rotate synchronously; The operating part (300) is located outside the first seat body (1-2) and is fixedly connected to the first valve (1-1) so as to drive the first valve (1-1) to rotate. The first locking structure (3) of the operating part (300) and the second locking structure (4) on the second seat body (2-2) are relatively rotated around the rotation axis of the first valve (1-1) to achieve axial locking.

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