Fluid connector

Abstract

A fluid connector, comprising a connecting end, a docking end and an operating portion, wherein a communication channel on a first seat body of the connecting end is configured to correspondingly communicate with a communication 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 is movable to open and close the corresponding communication channel, and the first valve is in transmission fit with the operating portion; the operating portion is movably disposed on the first seat body, and the second seat body has a second locking structure matching a first locking structure on the operating portion; and the movement direction in which the first locking structure moves relative to the second locking structure to enter and exit from a locking state is consistent with the movement direction in which the first valve is opened and closed, so that when the operating portion moves relative to the first seat body to drive the first valve to move in the movement direction, the first locking structure can be driven to move relative to the second locking structure in the movement direction in which the first locking structure enters and exits from the locking state. By means of additionally providing the operating portion, the connection between the connecting end and the docking end, and the opening and closing of the valve are achieved, such that operation is facilitated.

Description

Fluid connector

[0001] The present application claims priority to the Chinese patent application No. 202411136456.0, filed on August 16, 2024, and entitled "A fluid connector", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of fluid connection, more particularly, to a fluid connector. BACKGROUND

[0003] The fluid connector mainly comprises two connectors, which can be the same or different in structure and are connected to each other for further connection. For convenience of description, one connector is referred to as a connection end, and the other connector is referred to as a counter end.

[0004] In the process of implementing the present application, the inventors found that at least the following problems exist in the prior art: when the connection end and the counter end are connected, the valve needs to be rotated to achieve connection, and then the locking member is used to constrain the connection position. In the prior art, the two valve seats are pushed to rotate the valves of each other, and the locking member is locked between the two valve seats. However, this structure causes the two valve seats to move relative to each other during operation, which makes the operation inconvenient. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a fluid connector which can effectively solve the problem of inconvenient operation of the fluid connector.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A fluid connector comprises a connection end, a counter end and an operation part. A first seat body of the connection end is provided with a communication passage for corresponding communication with a communication passage of a second seat body of the counter end. At least one of the connection end and the counter end is provided with a first valve which is movable to open and close the corresponding communication passage. The first valve is in transmission cooperation with the operation part. The operation part is movably arranged on the first seat body. The second seat body is provided with a second locking structure which is in cooperation with a first locking structure of the operation part to realize locking of the connection end and the counter end in a locked state. The activity direction of the first locking structure relative to the second locking structure to enter and exit the locked state is consistent with the activity direction of the first valve to open and close, so that when the operation part moves relative to the first seat body to drive the first valve to move along the activity direction, the first locking structure can move relative to the second locking structure along the activity direction to enter and exit the locked state.

[0008] In the application of the fluid connector, after the connecting end and the counter end are connected, the first seat body and the second seat body are fixed relative to each other, and then the operating part is forced to move, so that the operating part moves relative to the first seat body and drives the first valve to move, and in the process, the first locking structure is driven to move relative to the second locking structure to enter the locked state, and the first valve is opened or closed to communicate the passage. In the above operation, after the connecting end is connected to the counter end at a predetermined angle, the operating part is moved in a predetermined direction, so that the connecting end and the counter end are locked, and the first valve is opened or closed. By adding the operating part, the connection between the connecting end and the counter end and the opening and closing of the valve are realized, and the relative rotation of the two seat bodies is avoided, so that the operation is more convenient. By arranging the operating part on the first seat body and locking the operating part with the second seat body, the connection between the connecting end and the counter end is realized, and the locking of the locking structure is completed by the movement of the operating part. Compared with the locking structure arranged 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 fluid connector.

[0009] In some technical solutions, the first valve is rotationally connected to the first seat body, and the operating part is fixed relative to the first valve; in the locked state, the first locking structure and the second locking structure abut along the axial direction of the first valve.

[0010] In some technical solutions, one of the first locking structure and the second locking structure is an arc-shaped clamping groove, and the other is a clamping convex portion matched with the arc-shaped clamping groove.

[0011] In some technical solutions, the counter end further comprises a second valve rotationally arranged on the second seat body to open or close the communication passage on the second seat body; the first valve and the second valve are connected in axial insertion.

[0012] In some technical solutions, the first valve has a first insertion column, the second valve has a first insertion hole matched with the first insertion column for insertion, the second seat body is provided with a first locking pin, and the first insertion hole is provided with a first locking hole matched with the first locking pin to prevent the second valve from rotating, so that when the first insertion column is inserted into the first insertion hole, the first locking pin exits the first locking hole.

[0013] The second valve has a second insertion column, the first valve has a second insertion hole matched with the second insertion column for insertion, the first seat body is provided with a second locking pin, and the second insertion hole is provided with a second locking hole matched with the second locking pin to prevent the first valve from rotating, so that when the second insertion column is inserted into the second insertion hole, the second locking pin exits the second locking hole.

[0014] In some technical solutions, the operating part is a sleeve, which is sleeved on the outside of the first base body.

[0015] In some technical solutions, the inner wall of the sleeve has two opposing arc-shaped grooves, and the outer wall of the second seat has two corresponding protrusions.

[0016] In some technical solutions, a connecting screw is also included. An arc-shaped through groove is provided on the first seat. 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.

[0017] In some technical solutions, both the first and second insertion holes are 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 insertion hole, and the second locking hole is located in the middle of the second insertion hole; in the radial direction of the first valve rotation axis, the width of the first insertion hole is smaller than the diameter of the first locking hole, and the width of the second insertion hole is smaller than the diameter of the second locking hole.

[0018] In some technical solutions, the second valve has a third locking hole that cooperates with the first locking pin. When the second valve is rotated to the open state, the third locking hole is aligned with the first locking pin to prevent the second valve from rotating by inserting the first locking pin. The first locking pin has a force-applying part located outside the second seat. The second seat is provided with a limiting hole that rotatably cooperates with the pin body of the first locking pin. The pin body of the first locking pin is connected to the force-applying part by a connecting rod. The second seat is provided with a relief groove for avoiding the connecting rod. One side wall of the relief groove has a groove to form a shoulder and a guide slope opposite to the shoulder. When the pin body of the first locking pin is in the withdrawn position, it can rotate until the connecting rod abuts against the shoulder to prevent the pin body from extending. The edge of the third locking hole can abut against the front end of the pin body of the first locking pin through the slope, so that when the second valve rotates, it pushes the pin body of the first locking pin backward to abut against the guide slope to guide the connecting rod and the shoulder to be misaligned.

[0019] In some technical solutions, a fluid connector is provided, comprising:

[0020] The connecting end has a first seat and a first valve rotatably disposed on the first seat;

[0021] The docking end has a second seat and a second valve rotatably disposed on the second seat. The first valve and the second valve are connected by a torque transmission structure so that they can rotate synchronously.

[0022] An operation part is arranged outside the first seat body and fixedly connected with the first valve to drive the first valve to rotate, and the first locking structure of the operation part and the second locking structure on the second seat body are relatively rotated around the first valve rotating axis to realize axial clamping.

[0023] The same as the above technical solution is that one seat body is provided with an operation part, and the operation part is locked and connected with another seat body to complete the connection of the connecting end and the counter end. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0025] Fig. 1 is an exploded structural schematic diagram of the fluid connector provided by the embodiment of the present application;

[0026] Fig. 2 is a structural schematic diagram of the fluid connector provided by the embodiment of the present application;

[0027] Fig. 3 is a structural schematic diagram of the connecting end provided by the embodiment of the present application;

[0028] Fig. 4 is a structural schematic diagram of the counter end provided by the embodiment of the present application;

[0029] Fig. 5 is a structural schematic diagram of a cross-sectional structure of the fluid connector in one direction provided by the embodiment of the present application;

[0030] Fig. 6 is a structural schematic diagram of a cross-sectional structure of the fluid connector in another direction provided by the embodiment of the present application;

[0031] Fig. 7 is a structural schematic diagram of the operation part provided by the embodiment of the present application;

[0032] Fig. 8 is a structural schematic diagram of the second seat body provided by the embodiment of the present application.

[0033] The connection end 100; the docking end 200; the operation part 300; the first valve 1-1, the first seat body 1-2, the first insertion column 1-11, the second insertion hole 1-12, the second locking hole 1-13, the second locking pin 1-3, the through groove 1-4, the connecting screw 1-5; the second valve 2-1, the second seat body 2-2, the second insertion column 2-11, the first insertion hole 2-12, the first locking hole 2-13, the third locking hole 2-14, the first locking pin 2-3, the clamping convex 2-21, the avoiding groove 2-22, the blocking shoulder 2-23, the guiding slope 2-24, the force applying part 2-31, the connecting rod 2-32; the arc-shaped clamping groove 3-1, the guiding groove 3-2; the communication channel 1, the communication hole 2, the first locking structure 3, the second locking structure 4, the tower head 5.

[0034] Wherein A represents the moving direction of the first locking structure relative to the second locking structure along the in-out locking state;

[0035] Wherein B represents the moving direction of the operation part relative to the first seat body to drive the first valve to realize the opening and closing movement. DETAILED DESCRIPTION

[0036] The fluid connector provided by the embodiment of the present application can effectively solve the problem of inconvenient connection operation of the fluid connector.

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0038] Please refer to FIG. 1-FIG. 8, FIG. 1 is an exploded structural schematic view of the fluid connector provided by the embodiment of the present application; FIG. 2 is a structural schematic view of the fluid connector provided by the embodiment of the present application; FIG. 3 is a structural schematic view of the connection end provided by the embodiment of the present application; FIG. 4 is a structural schematic view of the docking end provided by the embodiment of the present application; FIG. 5 is a structural schematic view of the fluid connector in one direction of the transverse direction; FIG. 6 is a structural schematic view of the fluid connector in another direction of the transverse direction; FIG. 7 is a structural schematic view of the operation part provided by the embodiment of the present application; FIG. 8 is a structural schematic view of the second seat body provided by the embodiment of the present application.

[0039] In some embodiments, a fluid connector is provided, which comprises at least two connectors, for the convenience of description, one of the connectors is a connecting end 100, and the other connector is a counter end 200, the connecting end 100 and the counter end 200 are connected to each other in a mating manner, so that in a connected state, the two connectors are fixed in position and the communication channels 1 are connected to each other. Specifically, both of the connectors have a seat body, and the seat body is provided with the communication channel 1, and the seat bodies of the two connectors are respectively connected to other channel structures, so as to realize the connection of the other channel structures through the fluid connector.

[0040] For the convenience of description, the seat body of the connecting end 100 is a first seat body 1-2, and the seat body of the counter end 200 is a second seat body 2-2. That is, the communication channel 1 on the first seat body 1-2 is used to correspondingly communicate with the communication channel 1 on the second seat body 2-2. Here, the communication can be directly abutted through the two communication channels 1 to realize the communication, or indirectly communicated through the valve communication holes 2 between each other. Generally, when the two connectors are connected, the communication channels 1 on the first seat body 1-2 and the second seat body 2-2 are arranged in alignment, and then the valve is opened, so as to realize the through communication, and thus the fluid can flow.

[0041] At least one of the connecting end 100 and the counter end 200 is provided with a movable first valve 1-1, and the first valve 1-1 is used to open and close the corresponding communication channel 1. It should be noted that at least one of the connecting end 100 and the counter end 200 is provided with the first valve 1-1, which means that one of the connecting end 100 or the counter end 200 is provided with the first valve 1-1, or the connecting end 100 and the counter end 200 are respectively provided with the first valve 1-1, and the valve is provided to realize the opening and closing of the corresponding communication channel 1, so as to form a valve structure with the corresponding seat body. Taking the connecting end 100 with the first valve 1-1 as an example, the first valve 1-1 is 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 be moved relative to the first seat body 1-2, and can be moved to close the communication channel 1 on the first seat body 1-2, or can be moved to open the communication 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 respectively provided with a detachable tower head 5, so as to facilitate the communication between the communication channel 1 and the external channel.

[0042] Generally speaking, the first valve 1-1 or other valve for closing the communication passage 1 is provided with a communication hole 2. When the communication hole 2 on the valve is aligned with the corresponding communication passage 1, the valve opens the corresponding communication passage 1. When the communication hole 2 on the valve is completely misaligned with the corresponding communication passage 1, the solid part on the valve blocks the communication passage 1 to achieve the closing of the communication passage 1. Of course, other ways of opening and closing the communication passage 1 are also possible.

[0043] 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 achieve the opening and closing action. The transmission cooperation can be fixed connection or transmission through a transmission mechanism such as a lever mechanism, a gear mechanism, etc. The fixed connection can be detachable fixed connection or non-detachable fixed connection. The non-detachable fixed connection can be integral connection, welding, etc. The detachable fixed connection can be plug-in connection, screw connection, etc.

[0044] 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 externally force-applied for easy operation of the valve. The operating part 300 is movably arranged on the first seat body 1-2, which can be directly connected to the first seat body 1-2 through a movable connection structure, or indirectly achieve the above effect. For example, 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, so that the corresponding operating part 300 and the first seat body 1-2 are indirectly movably connected. It can be understood that the operating part 300 is movably arranged on the first seat body 1-2, which can be axially rotatably arranged on the first seat body 1-2.

[0045] The locking device is arranged between the connecting end 100 and the docking end 200, and the locking device is arranged between the connecting end 100 and the docking end 200. The locking device is arranged between the connecting end 100 and the docking end 200. The locking device is mainly composed of a first locking structure 3 and a second locking structure 4 matched with each other, and the first locking structure 3 and the second locking structure 4 are locked by clamping, threaded connection or other ways.

[0046] Among at least one set of matched first locking structure 3 and second locking structure 4: 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. The second seat body 2-2 and the first locking structure 3 are locked, and then the first seat body 1-2 and the second seat body 2-2 are locked, so as to realize the locking between the connecting end 100 and the docking end 200.

[0047] In the connecting process, the first locking structure 3 and the second locking structure 4 are relatively movable to enter or exit the locking state, and the locking between the connecting end 100 and the mating end 200 is achieved in the locking state. When the operation part 300 is relatively movable to the second seat body 2-2, the relative movement of the first locking structure 3 to the second locking structure 4 is achieved to enter or exit the locking state.

[0048] The movement direction of the first locking structure 3 to the second locking structure 4 to enter or exit the locking state is consistent with the movement direction of the first valve 1-1 to open or close, that is, consistent with the movement direction of the operation part 300 to drive the first valve 1-1 to open or close. By making the movement direction of the operation part 300 consistent with the movement direction of the first valve 1-1, when the operation part 300 is relatively movable to the first seat body 1-2 to drive the first valve 1-1 to move along the opening or closing direction (the opening or closing direction is the movement direction of the first valve 1-1 to open or close), the first locking structure 3 is relatively movable to the second locking structure 4 along the movement direction to enter or exit the locking state. Generally, when the first valve 1-1 is opened, the first locking structure 3 is relatively movable to the second locking structure 4 to enter the locking state. Generally, when the first valve 1-1 starts to move, the first locking structure 3 is relatively movable to the second locking structure 4. When the locking is achieved, the first valve 1-1 has moved, but has not been opened. Then the operation part 300 continues to move, the first locking structure 3 continues to move relative to the second locking structure 4, and the first valve 1-1 is opened.

[0049] It should be noted that when the operation part 300 is movable to drive the first valve 1-1 to open or close, the movement direction of the first valve 1-1 and the movement direction of the operation part 300 are consistent.

[0050] In some embodiments, when the above fluid connector is applied, 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 the operating part 300 is forced to move, so that the operating part 300 moves relative to the first seat body 1-2, driving the first valve 1-1 to move, and at the same time, the first locking structure 3 is driven to move relative to the second locking structure 4 to enter the locked state, and the first valve 1-1 is opened or closed to communicate the passage 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 moved in a predetermined direction to achieve the locking of the docking end 200 and the connection end 100, and the opening and closing of the first valve 1-1. By increasing 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 achieved, and the relative rotation of the two seat bodies is avoided, so that the operation is more convenient. By arranging 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 locking between the connection end 100 and the docking end 200 is achieved, and the locking of the locking structure is completed by the movement of the operating part 300. Compared with the locking structure arranged 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 fluid connector.

[0051] In some embodiments, in order to facilitate operation, the first valve 1-1 can be rotatably connected to the first seat body 1-2 to open and close the communication passage 1 on the first seat body 1-2. The first valve 1-1 has a communication hole 2, and when the solid part of the first valve 1-1 is rotated to the communication passage 1, the communication passage 1 can be closed. When the communication hole 2 on the first valve 1-1 and the communication passage 1 overlap, they are in communication. Generally, when the communication hole 2 and the communication passage 1 completely overlap, the final communication is completed, that is, the maximum flow communication is obtained. It can be understood that the first valve 1-1 is rotatably connected to the first seat body 1-2, which can be axial rotation of the first valve 1-1 along the axis direction.

[0052] In some embodiments, the operating part 300 can be relatively fixed with the first valve 1-1, so that the operating part 300 is constrained to only rotate around the rotation axis of the first valve 1-1. Generally, the operating part 300 is located on the outside of the first seat body 1-2, so a connecting piece is needed to pass through the first seat body 1-2, one end of the connecting piece is fixedly connected with the first valve 1-1 in the first seat body 1-2, and the other end is fixedly connected with the operating part 300 on the outside of the first seat body 1-2. It can be understood that the first seat body 1-2 is provided with a movable slot for the movement of the above connecting piece to achieve the opening and closing movement of the first valve 1-1.

[0053] In some embodiments, in order to match the rotation of the valve to open and close, the corresponding first locking structure 3 and second locking structure 4 can be in abutment along the axial direction of the first valve 1-1 in the locked state to achieve axial clamping. Specifically, the first locking structure 3 and the second locking structure 4 form a matched clamping shoulder to achieve clamping. Specifically, the first locking structure 3 and the second locking structure 4 can be rotationally clamped, that is, one is provided with an arc-shaped clamping groove 3-1, and the other is a clamping protrusion 2-21 matched with the arc-shaped clamping groove 3-1.

[0054] In some embodiments, specifically, one of the first locking structure 3 and the second locking structure 4 is an arc-shaped clamping groove 3-1, and the other is a clamping protrusion 2-21 matched with the arc-shaped clamping groove 3-1 to form a rotational clamping. Specifically, the second locking structure 4 can be a clamping protrusion 2-21, and the first locking structure 3 can be an arc-shaped clamping groove 3-1. The groove width direction of the arc-shaped clamping groove 3-1 is consistent with the axial direction of the first valve 1-1, so that the clamping protrusion 2-21 is in abutment with the groove wall of the arc-shaped clamping groove 3-1 through the axial direction to achieve axial clamping. When the arc-shaped clamping groove 3-1 and the clamping protrusion 2-21 are misaligned, the clamping protrusion 2-21 can be moved relative to the arc-shaped clamping groove 3-1 along the axial direction of the first valve 1-1 to be axially aligned with the arc-shaped clamping groove 3-1. The clamping protrusion 2-21 rotates relative to the arc-shaped clamping groove 3-1 around the axis to enter the arc-shaped clamping groove 3-1 to achieve axial locking. Due to the extension length of the arc-shaped clamping groove 3-1, the clamping protrusion 2-21 can continue to rotate after entering the arc-shaped clamping groove 3-1 until the first valve 1-1 completes the opening (opening) or closing action.

[0055] When a plurality of sets of matched first locking structure 3 and second locking structure 4 are provided, the first locking structure 3 can all be arc-shaped clamping grooves 3-1, or part of the first locking structure 3 can be arc-shaped clamping grooves 3-1, and the other part of the first locking structure 3 can be clamping protrusions 2-21 matched with the arc-shaped clamping grooves 3-1 on the second locking structure 4.

[0056] In some embodiments, the docking end 200 and the connecting end 100 can be provided with valves respectively, so that the respective communication channels 1 can be closed when disconnected. Based on this, the docking end 200 can further include a second valve 2-1 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, in order to facilitate operation, the operating part 300 is directly or indirectly in transmission connection with the second valve 2-1 after the connecting end 100 and the docking end 200 are docked, so as to drive the second valve 2-1 to move simultaneously when the first valve 1-1 is driven to move. It should be noted that, generally, when the first seat body 1-2 and the second seat body 2-2 abut or are relatively fixed in the axial direction, it is considered that the docking state is reached, and at this time, the arc-shaped clamping groove 3-1 is aligned with the clamping protrusion 2-21 in the axial direction. It can be understood that the second valve 2-1 is rotatably connected to the second seat body 2-2, and can be axially rotatably connected to the second seat body 2-2 along the axial direction of the second valve 2-1.

[0057] In some embodiments, the first valve 1-1 and the second valve 2-1 can be axially inserted and connected, so that the second valve 2-1 can be driven to rotate by the first valve 1-1, that is, when the first valve 1-1 and the second valve 2-1 are axially inserted and connected, the operating part 300 is rotated 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 are locked, and the first valve 1-1 and the second valve 2-1 are opened synchronously.

[0058] In some embodiments, in the docking state, in addition to the insertion and connection between the first valve 1-1 and the second valve 2-1 through the insertion structure to transmit torque, other torque transmission structures such as cooperating tooth and groove structures can also be used to transmit torque.

[0059] In some embodiments, the first valve 1-1 and the second valve 2-1 can be in direct contact, that is, the communication holes 2 of the first valve 1-1 and the second valve 2-1 are directly connected or connected through sealing rings, or the first valve 1-1 and the second valve 2-1 can be connected through corresponding parts of the first seat body 1-2 and the second seat body 2-2, and the insertion structure passes through the above-mentioned seat bodies to enable torque transmission.

[0060] In some embodiments, in order to facilitate insertion and connection, the insertion and connection can be achieved through insertion columns and insertion holes, for example, the first valve 1-1 is provided with insertion columns, and the second valve 2-1 is provided with insertion holes; when a plurality of sets of cooperating insertion holes and insertion columns are used to achieve insertion and connection, part of the insertion columns can be arranged on the first valve 1-1, and the other part of the insertion columns can be arranged on the second valve 2-1. Specifically, the arrangement can be made according to requirements.

[0061] In some embodiments, in order to avoid the first valve 1-1 or the second valve 2-1 being rotated at will in the disconnected state, generally a first locking pin 2-3 is arranged on the second seat body 2-2, and a first locking hole 2-13 matched with the first locking pin 2-3 is arranged 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, thereby preventing the second valve 2-1 from rotating relative to the second seat body 2-2, and keeping in the closed state.

[0062] Correspondingly, a second locking pin 1-3 can be arranged on the first seat body 1-2, and a second locking hole 1-13 matched with the second locking pin 1-3 can be arranged on the first valve 1-1, so that when the first valve 1-1 is in the closed state, the second locking pin 1-3 enters the second locking hole 1-13 under the action of the elastic member, thereby preventing the first valve 1-1 from rotating relative to the first seat body 1-2, and keeping in the closed state.

[0063] In some embodiments, in order to facilitate operation, a first ejection member can be arranged on the first valve 1-1, and a second ejection member can be arranged on the second valve 2-1, so that when the connecting end 100 and the counter-connection end 200 are aligned and moved in the counter-connection direction, the first ejection member pushes the first locking pin 2-3 out of the first locking hole 2-13, and the second ejection member pushes the second locking pin 1-3 out of the second locking hole 1-13, so that before the counter-connection is completed, the first locking pin 2-3 exits the first locking hole 2-13 to not interfere with the rotation of the second valve 2-1, and the second locking pin 1-3 exits the second locking hole 1-13 to not interfere with the rotation of the first valve 1-1.

[0064] In order to facilitate the arrangement of the first ejection member and the second ejection member, both of which can be a plug column for plug connection, specifically, the first valve 1-1 can be provided with a first plug column 1-11, and the second valve 2-1 can be provided with a first plug hole 2-12 for plug connection with the first plug column 1-11. When the first locking pin 2-3 is arranged on the second seat body 2-2, a first locking hole 2-13 matched with the first locking pin 2-3 to prevent the second valve 2-1 from rotating can be arranged at the first plug hole 2-12, so that when the first plug column 1-11 is inserted into the first plug hole 2-12, the first locking pin 2-3 exits the first locking hole 2-13, and when the counter-connection is completed, the first plug column 1-11 is inserted into the first plug hole 2-12 to complete the plug connection, and at the same time, the first plug column 1-11, as the first ejection member, pushes the first locking pin 2-3 out, so that the second valve 2-1 can continue to rotate.

[0065] Correspondingly, the second valve 2-1 can be provided with a second insertion column 2-11, and the first valve 1-1 is provided with a second insertion hole 1-12 which is connected with the second insertion column 2-11. When the second locking pin 1-3 is arranged on the first seat body 1-2, the second insertion hole 1-12 is provided with a second locking hole 1-13 which cooperates with the second locking pin 1-3 to prevent the first valve 1-1 from rotating. When the second insertion column 2-11 is inserted into the second insertion hole 1-12, the second locking pin 1-3 exits the second locking hole 1-13. When the two are connected, the second insertion column 2-11 is inserted into the second insertion hole 1-12 to complete the insertion, and at the same time, the second insertion column 2-11 pushes the second locking pin 1-3 out of the second locking hole 1-13, so that the first valve 1-1 can continue to rotate.

[0066] It should be noted that, as described above, the first valve 1-1 and the second valve 2-1 are not only connected by at least one set of cooperating first insertion column 1-11 and first insertion hole 2-12, but also connected by at least one set of cooperating second insertion column 2-11 and second insertion hole 1-12.

[0067] In some embodiments, in order to facilitate operation, the operation part 300 can be arranged outside the first seat body 1-2. The operation part 300 can be a lever structure, an arc-shaped plate structure or other structures, as long as it can achieve the operation. Further, in order to facilitate operation and achieve good covering effect, the operation part 300 is preferably a sleeve which is arranged outside the first seat body 1-2, can protect the first seat body 1-2, and at the same time, facilitate the arrangement of the rotating clamping protrusion 2-21 or clamping protrusion 2-21. In addition, the sleeve can be gripped to facilitate the application of torque. In order to better apply torque, the surface of the sleeve can be provided with an abrasive structure to facilitate force application.

[0068] In some embodiments, in order to facilitate the rotation clamping, the inner wall of the sleeve can be provided with two oppositely arranged arc-shaped clamping grooves 3-1, and the outer wall of the second seat body 2-2 is provided with two corresponding clamping protrusions 2-21. The two arc-shaped clamping grooves 3-1 form a guide groove 3-2, which guides the clamping protrusion 2-21 to move along the guide groove 3-2 to align with the arc-shaped clamping groove 3-1 in the direction of the rotation axis of the first valve 1-1. Then, the sleeve is rotated to make the clamping protrusion 2-21 enter the arc-shaped clamping groove 3-1 from the guide groove 3-2, and the groove wall of the arc-shaped clamping groove 3-1 is in abutment with the clamping protrusion 2-21 in the axial direction of the first valve 1-1, so as to achieve axial clamping and enter the locking state.

[0069] In some embodiments, in order to facilitate the connection between the first seat 1-2 and the sleeve, a connecting screw 1-5 is preferably also included here, wherein an arc-shaped through slot 1-4 is formed on the first seat 1-2, and the connecting screw 1-5 is threaded into the first valve 1-1 after passing through the through hole of the sleeve and the through slot 1-4, and the head of the screw abuts against the outer end of the through hole of the sleeve to fix the operating part 300 on the first valve 1-1. The connection between the first seat 1-2 and the sleeve can be achieved by only one connecting screw 1-5, or by multiple connecting screws 1-5 dispersedly.

[0070] In some embodiments, in order to facilitate the arrangement, the first valve 1-1 can be provided with two first insertion columns 1-11 arranged away from each other and two second insertion holes 1-12 arranged away from each other, and the four structures are uniformly arranged around the rotation axis of the first valve 1-1. Correspondingly, the second valve 2-1 can be provided with two second insertion columns 2-11 arranged away from each other and two first insertion holes 2-12 arranged away from each other, and the four structures are uniformly arranged around the rotation axis of the second valve 2-1. One of the first insertion holes 2-12 is provided with a first locking hole 2-13, and one of the second insertion holes 1-12 is provided with a second locking hole 1-13.

[0071] In some embodiments, the first insertion hole 2-12 and the second insertion hole 1-12 can be elongated in 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 insertion hole 2-12, and the corresponding second locking hole 1-13 is located in the middle of the second insertion hole 1-12; in the radial direction of the rotation axis of the first valve 1-1, the width of the first insertion hole 2-12 is smaller than the diameter of the first locking hole 2-13, so as to avoid the first locking pin 2-3 from being separated from the first locking hole 2-13, and the width of the second insertion hole 1-12 is smaller than the diameter of the second locking hole 1-13, so as to avoid the second locking pin 1-3 from being separated from the second locking hole 1-13.

[0072] In some embodiments, the second valve 2-1 can be provided with a third locking hole 2-14 matched with the first locking pin 2-3, and when the second valve 2-1 is rotated 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 by 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, and the second valve 2-1 and the first valve 1-1 are rotationally matched, thereby indirectly preventing the first valve 1-1 from rotating, and preventing the operating part 300 from rotating to prevent the clamping from being separated, so that they are kept in the open state, avoiding being closed at will, and avoiding being disconnected at will.

[0073] For the convenience of operation, the first locking pin 2-3 preferably has a force applying part 2-31 outside the second seat body 2-2, so as to facilitate the operation of the force applying part 2-31 to operate the first locking pin 2-3 to exit the third locking hole 2-14, thereby realizing unlocking, so as to operate the operation part 300 to realize the opening of the valve and the 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.

[0074] In some examples, the second seat body 2-2 is preferably provided with a limiting hole which is in rotational cooperation with the pin body of the first locking pin 2-3, the pin body of the first locking pin 2-3 is connected with the force applying part 2-31 through a connecting rod 2-32, and the second seat body 2-2 is provided with an avoiding groove 2-22 for avoiding the connecting rod 2-32, one side groove wall of the avoiding groove 2-22 has a groove to form a shoulder 2-23 and a guide slope 2-24 arranged opposite to the shoulder 2-23. Through the above arrangement, when the pin body of the first locking pin 2-3 is in the exit position, it can be rotated to abut the connecting rod 2-32 and the shoulder 2-23 to prevent the pin body from extending out, so that when operating, the pin body is pushed out by manually operating the force applying part 2-31, that is, it does not interfere with the rotation of the second valve 2-1, and then continues to apply force to rotate the force applying part 2-31 to drive the pin body to rotate, so that the connecting rod 2-32 and the shoulder 2-23 are disengaged from each other, and the shoulder 2-23 is abutted to prevent the elastic device from pushing the pin body to extend out, so as to remain in the exit position.

[0075] Further, for the convenience of operation, the hole along of the third locking hole 2-14 is preferably capable of abutting the front end of the pin body of the first locking pin 2-3 through a slope, such as a chamfer structure of the hole along of the third locking hole 2-14 to form a slope, so that when the second valve 2-1 rotates, an axial thrust will be generated due to the abutment of the slope, to push the pin body to continue to move backward to abut the guide slope 2-24 to guide the connecting rod 2-32 to disengage from the shoulder 2-23, so that the first locking pin 2-3 can move forward under the pushing of the elastic device.

[0076] In some examples, a fluid connector is provided, comprising: 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; a mating end 200 having a second seat body 2-2 and a second valve 2-1 rotatably arranged on the second seat body 2-2, the first valve 1-1 and the second valve 2-1 being connected by a torque transmission structure to be synchronously rotatable; and an operating part 300 located outside the first seat body 1-2 and fixedly connected with the first valve 1-1 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 being relatively rotatable around the axis of the first valve 1-1 to achieve axial locking. As in the above technical solution, one seat body is provided with an operating part 300, and the operating part 300 is locked with the other seat body to complete the connection of the connecting end 100 and the mating end 200. It can be understood that the first valve 1-1 is arranged axially rotatable on the first seat body 1-2, and the second valve 2-1 is arranged axially rotatable on the second seat body 2-2.

[0077] The connecting end 100, the mating end 200 and the operating part 300 can all refer to the above embodiments.

[0078] In some embodiments, a connecting end of a fluid connector is provided, comprising a first seat body 1-2, a first valve 1-1 and an operating part 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.

[0079] A communication passage 1 is arranged on the valve seat body, and a communication hole 2 is arranged on the first valve. For a double-channel fluid connector, two communication passages 1 are arranged on the valve seat body, and two communication holes 2 are arranged on the first valve 1-1. When the first valve 1-1 is rotated to align the communication hole 2 with the communication passage 1, it is opened, i.e. the communication passage 1 is opened, and when it is rotated to cover the communication passage 1 with a solid part, it is closed, i.e. the communication passage 1 is closed. A spool head is detachably connected to the valve seat body to realize the communication between the communication passage and the external pipeline.

[0080] A window hole is formed 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 edge part of the valve cover clamps the first valve 1-1, so that the first valve 1-1 can only rotate around its own axis, but cannot move axially and radially.

[0081] The middle part of the first valve 1-1 has a communication hole 2, and is provided with a plug-in structure for plugging with the second valve 2-1, such as the first plug-in column 1-11 and the second plug-in hole 1-12, which are plugged with the plug-in hole and the plug-in column on the second valve 2-1 respectively. The communication hole 2 in the middle part of the first valve 1-1 is used to align with the communication hole in the middle part of the second valve 2-1 to communicate, and then rotate synchronously to open the respective communication channels 1 synchronously, so as to complete the communication between the docking end 200 and the connecting end 100. The two first plug-in columns 1-11 are arranged on the two sides away from each other, and one of the first plug-in columns 1-11 can be slightly longer than the other, so as to better push the first locking pin 2-3 in the first plug-in hole 2-12.

[0082] The two second plug-in holes 1-12 are arranged away from each other, so that the first valve 1-1 and the second valve 2-1 are connected by four groups of plug-in holes and plug-in columns, and the four groups of plug-in components are uniformly arranged around the rotation axis of the first valve 1-1, and are generally located at the same circumferential position. The plug-in column and the plug-in hole extend along the axial direction of the first valve 1-1.

[0083] The middle part of at least one second plug-in hole 1-12 is provided with a second locking hole 1-13, and the part of the second plug-in hole 1-12 and the part of the second locking hole 1-13 coincide, the second locking pin 1-3 is connected to the valve seat body in the axial direction of the first valve 1-1, and is in abutment with the valve seat body through the elastic device (spring or elastic body). When the second locking hole 1-13 and the second locking pin 1-3 are aligned in the circumferential direction, the first valve 1-1 is in a closed state at this time, and the second locking pin 1-3 can slide into the second locking hole 1-13 under the action of the spring at this time, so as to prevent the first valve 1-1 from rotating. When in use, the second plug-in hole 1-12 will be inserted into the second plug-in column 2-11 on the second valve 2-1 in the docking state, because there is a part of the coincidence, the second locking pin 1-3 located in the second locking hole 1-13 will be in abutment with the second plug-in column 2-11, with the insertion of the second plug-in column 2-11, the second locking pin 1-3 will be pushed out of the second locking hole 1-13, so that subsequently, the operation part 300 can drive the first valve 1-1 to rotate, so as to be able to enter the open state. The coincidence can make the second plug-in hole 1-12 form a narrow hole, and the second locking hole 1-13 form a relatively thick cylindrical hole structure.

[0084] The valve cover is provided with two arc-shaped through grooves 1-4 on the two sides in the radial direction, and a connecting screw 1-5 is arranged in the through groove 1-4. The connecting screw 1-5 passes through the through hole of the operation part 300 from the outside of the operation part 300, passes through the through groove 1-4, and is threadedly connected with the side surface of the first valve 1-1 in the inside. The through groove 1-4 is in an arc shape, so as not to interfere with the rotation of the connecting screw 1-5 following the operation part 300, and the connecting screw 1-5 is provided in a countersunk manner.

[0085] The operation part 300 is in a sleeve structure, one end of which is provided with an opening for inserting the second seat body 2-2, and an arc-shaped clamping groove 3-1 is formed inside for rotating clamping with the second seat body 2-2, and the rotation axis is consistent with the axis of the first valve 1-1. The other end of the operation part 300 has an inner protrusion, which abuts against the side of the valve seat body away from the valve cover, so that during the rotating clamping process, the operation part 300 mainly transmits the axial force between the inner protrusion and the first seat body 1-2, which can avoid a large axial force between the connecting screw 1-5 and the operation part 300.

[0086] In some embodiments, a mating end 200 of a fluid connector is provided, including a second seat body 2-2 and a second valve 2-1. The second seat body 2-2 mainly includes a valve seat body and a valve cover, which are fixedly connected and form an assembly cavity for cooperating with the second valve 2-1, so that the second valve 2-1 can rotate around the axis of the valve seat body of the second seat body 2-2 in the assembly cavity.

[0087] 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 double-channel fluid connector, two communication channels 1 are 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 to align the communication hole 2 with the communication channel 1, it is opened, i.e. the communication channel 1 is opened, and when it is rotated to cover the communication channel 1 with the solid part, it is closed, i.e. the communication channel 1 is closed. The valve seat body is detachably connected with a spool head to realize the communication between the communication channel and the external pipeline.

[0088] The valve cover is provided with a window hole on the side away from the valve seat body, and the middle part of the second valve 2-1 is exposed from the window hole, and 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 and radially.

[0089] The middle part of the second valve 2-1 has a communication hole 2, and is provided with a plug-in structure for plugging into the second valve 2-1, such as the second plug column 2-11 and the first plug hole 2-12, which are plugged into the plug hole and the plug column on the first valve 1-1, respectively. The communication hole 2 in the middle part of the second valve 2-1 is used to align with the communication hole 2 in the middle part of the first valve 1-1 to communicate, and then rotate synchronously to open the respective communication channels 1 synchronously to complete the communication between the mating end 200 and the connecting end 100. The two second plug columns 2-11 are arranged on the two sides away from each other, and one of them can be slightly longer than the other to better push the second locking pin 1-3 in the second plug hole 1-12.

[0090] Two first insertion holes 2-12 are arranged away from each other, so that the first valve 1-1 and the second valve 2-1 are connected through four sets of insertion holes and insertion columns, and the four sets of insertion assemblies are uniformly arranged around the rotation axis of the second valve 2-1 and are generally located at the same circumferential position and are located inside the window. The insertion column and the insertion hole extend along the axial direction of the second valve 2-1.

[0091] The middle part of at least one first insertion hole 2-12 is provided with a first locking hole 2-13, and the part of the first insertion hole 2-12 and the part of the first locking hole 2-13 coincide, and the first locking pin 2-3 is connected to the valve seat body in the axial direction of the second valve 2-1 and abuts against the valve seat body through the 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 at this time, 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, the first insertion hole 2-12 will be inserted into the first insertion column 1-11 on the first valve 1-1 in the docking state, because there is a part of coincidence, the first locking pin 2-3 located in the first locking hole 2-13 will abut against the first insertion column 1-11, and as the docking proceeds, the first insertion 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 subsequently, the first valve 1-1 can drive the second valve 2-1 to rotate to enter an open state. The overlapping manner can form a narrow hole for the second insertion hole 1-12, and a relatively thick cylindrical hole structure for the second locking hole 1-13.

[0092] When the second valve 2-1 is rotated to an open state, the third locking hole 2-14 on the second valve 2-1 will be aligned with the first locking pin 2-3 at this time, 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 insertion relationship, the first valve 1-1 cannot be rotated, and the operation part 300 cannot continue to be rotated. So that the connection end 100 and the docking end 200 are maintained in a connected state. After the operating force applying part 2-31 is operated to push the first locking pin 2-3 out of the third locking hole 2-14, the second valve 2-1 can be indirectly driven to rotate by the operation part 300.

[0093] The first locking pin 2-3 comprises a columnar pin body, a force applying part 2-31 and a connecting rod 2-32, the valve cover has an avoiding groove 2-22, the force applying part 2-31 is located outside the valve cover, the connecting rod 2-32 passes through the avoiding groove 2-22 and is connected with the columnar pin body and the force applying part 2-31 at two ends respectively. The columnar pin body is rotatably installed on the valve seat body. A groove is formed on one side of the avoiding groove 2-22, the groove wall on the side close to the connecting end 100 is a stop shoulder 2-23, the groove wall on the other side is a guide inclined surface 2-24, the part close to the groove opening gradually inclines away from the connecting end 100 to form the guide inclined surface 2-24. The hole of the third locking hole 2-14 is formed as a horn opening, when the front end of the columnar pin body exits to the horn opening, the second valve 2-1 can be rotated at this time, and the connecting rod 2-32 is located on the side away from the connecting end of the stop shoulder 2-23 at this time, the first locking pin 2-3 can be driven to rotate as a whole by the force applying part 2-31 at this time, the connecting rod 2-32 is staggered with the stop shoulder 2-23, rotates to be aligned and is then limited to extend out by the stop shoulder 2-23. At this time, the second valve 2-1 is rotated, the horn opening and the front end of the columnar pin body abut by the inclined surface, 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 abuts against the guide inclined surface 2-24, and continues to push backward until the disc surface of the second valve 2-1 abuts against the columnar pin body, the guide inclined surface completes the guide, and then the connecting rod 2-32 is staggered with the stop shoulder 2-23, and can continue to extend out under the action of the elastic device.

[0094] In some embodiments, before the docking, when the first plug post 1-11 and the first plug hole 2-12 are aligned, the second plug post 2-11 and the second plug hole 1-12 are aligned, the communication hole on the first valve 1-1 and the communication hole on the second valve 2-1 are aligned, and when the stop structure exists between the first seat body 1-2 and the second seat body 2-2, the clamping convex 2-21 and the guide groove 3-2 should also be aligned.

[0095] Then the connecting end and the docking end move relatively in the axial direction until the first valve 1-1 and the second valve 2-1 abut by the sealing ring. At this time, the first plug post 1-11 is inserted into the first plug hole 2-12 and pushes out the first locking pin 2-3 in the first locking hole 2-13, the second plug post 2-11 is inserted into the second plug hole 1-12 and pushes out the second locking pin 2-3 in the second locking hole 1-13, and at this time, the clamping convex 2-21 is located at one end of the arc-shaped clamping groove 3-1 and is arranged in the axial direction. Then the operation part 300 is rotated to drive the first valve 1-1 to rotate, the first valve 1-1 drives the second valve 2-1 to rotate until they are opened to the communication channels respectively, 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 communication, that is, the connection between the connecting end 200 and the docking end 100 is completed.

[0096] When opening, the operating force applying part 2-31 is operated to make the first locking pin 2-3 exit the third locking hole 2-14, and then is rotated to be blocked by the blocking shoulder 2-23, at this time the operating force applying part 2-31 can be released, the operating part 300 is operated to rotate reversely, and the first valve 1-1 and the second valve 2-1 are reversely rotated to close the corresponding communication channels 1. At this time, the second valve 2-1 makes the first locking pin 2-3 reset under the action of the guide slope 2-24 by pushing the first locking pin 2-3 to retreat, that is, the first locking pin 2-3 is disengaged from the blocking shoulder 2-23.

[0097] After rotating to the position, the clamping convex 2-21 is located in the guide groove 3-2 and is disengaged from the arc-shaped clamping groove 3-1, then the connecting end 100 and the counter connecting end 200 are moved away from each other, the first inserting column 1-11 is disengaged from the first inserting hole 2-12, and the first locking pin 2-3 enters the first locking hole 2-13; the second inserting column 2-11 is disengaged from the second inserting 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 rotationally stopped.

[0098] In some application scenarios, the pipeline connected with the first seat body 1-2 of the connecting end 100 and the pipeline connected with the second seat body 2-2 of the counter connecting end 200 need to be kept fixed, in these application scenarios, the fluid connector provided by the application is applied, when the connecting end 100 and the counter connecting end 200 are respectively connected with the pipelines and are connected with each other, because the opening and closing of the corresponding fluid channels 1 are realized by rotating the valves driven by the operating part 4, the first seat body 1-2 and the second seat body 2-2 and the corresponding pipelines can be kept fixed, so the needs of these application scenarios can be well met.

[0099] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0100] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to these 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 by, The utility model relates to a connector, which comprises a connecting end (100), a counter end (200) and an operating part (300), a communication channel (1) is communicated on the first seat body (1-2) of the connecting end (100) to correspond with the communication channel (1) communicated on the second seat body (2-2) of the counter end (200); at least one of the connecting end (100) and the counter end (200) is provided with a first valve (1-1) which can be moved to open and close the corresponding communication 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 second locking structure (4) matched with the first locking structure (3) on the operating part (300) to realize the locking of the connecting end (100) and the counter end (200) in the locking state; the moving direction of the first locking structure (3) relative to the second locking structure (4) to enter and exit the locking state is consistent with the moving direction of the first valve (1-1) to open and close, so that the first locking structure (3) can be moved relative to the second locking structure (4) along the moving direction to enter and exit the locking state when the operating part (300) is moved relative to the first seat body (1-2) to drive the first valve (1-1) to move along the moving direction.

2. The fluid connector of claim 1, wherein, The first valve (1-1) is rotatably connected to the first seat body (1-2), and the operating part (300) is fixed relative to the first valve (1-1); in the locking state, the first locking structure (3) and the second locking structure (4) abut along the axial direction of the first valve (1-1).

3. The fluid connector of claim 2, wherein, One of the first locking structure (3) and the second locking structure (4) is an arc-shaped clamping groove (3-1), and the other is a clamping convex (2-21) matched with the arc-shaped clamping groove (3-1).

4. The fluid connector of claim 3, wherein, The counter end (200) further comprises a second valve (2-1) rotatably arranged on the second seat body (2-2) to open and close the communication channel (1) on the second seat body (2-2); the first valve (1-1) and the second valve (2-1) are connected in axial insertion.

5. The fluid connector of claim 4, wherein, The first valve (1-1) has a first insertion column (1-11), the second valve (2-1) has a first insertion hole (2-12) matched with the first insertion column (1-11) for insertion, the second seat body (2-2) is provided with a first locking pin (2-3), and the first insertion 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 insertion column (1-11) is inserted into the first insertion hole (2-12), the first locking pin (2-3) exits the first locking hole (2-13); The second valve (2-1) has a second insertion column (2-11), the first valve (1-1) has a second insertion hole (1-12) which is inserted with the second insertion column (2-11), the first seat body (1-2) is provided with a second locking pin (1-3), the second insertion hole (1-12) is provided with a second locking hole (1-13) which cooperates with the second locking pin (1-3) to prevent the first valve (1-1) from rotating, so that the second locking pin (1-3) exits the second locking hole (1-13) when the second insertion column (2-11) is inserted into the second insertion hole (1-12).

6. The fluid connector of claim 5, wherein, The operation part (300) is a sleeve which is sleeved outside the first seat body (1-2).

7. The fluid connector of claim 6, wherein, The inner wall of the sleeve is provided with two oppositely arranged arc-shaped clamping grooves (3-1), and the outer wall of the second seat body (2-2) has two corresponding clamping protrusions (2-21).

8. The fluid connector of claim 7, wherein, A connecting screw (1-5) is further included, an arc-shaped through groove (1-4) is formed in the first seat body (1-2), and the connecting screw (1-5) is threadedly connected with the first valve (1-1) after penetrating the through hole of the sleeve and the through groove (1-4), so as to fix the operation part (300) on the first valve (1-1).

9. The fluid connector of claim 8, wherein, The first insertion hole (2-12) and the second insertion hole (1-12) are both long strips in 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 insertion hole (2-12), and the second locking hole (1-13) is located in the middle of the second insertion hole (1-12); in the radial direction of the rotation axis of the first valve (1-1), the width of the first insertion hole (2-12) is smaller than the diameter of the first locking hole (2-13), and the width of the second insertion hole (1-12) is smaller than the diameter of the second locking hole (1-13).

10. The fluid connector of claim 9, wherein, 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) 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 part (2-31) located outside the second seat body (2-2); the second seat body (2-2) is provided with a limiting hole rotationally matched with the pin body of the first locking pin (2-3), and the pin body of the first locking pin (2-3) is connected with the force applying part (2-31) through a connecting rod (2-32); the second seat body (2-2) is provided with an avoiding groove (2-22) for avoiding the connecting rod (2-32), one side groove wall of the avoiding groove (2-22) has a groove to form a shoulder (2-23) and a guide slope (2-24) oppositely arranged with the shoulder (2-23); when the pin body of the first locking pin (2-3) is located at an exit position, it can be rotated to abut the connecting rod (2-32) with the shoulder (2-23) to prevent the pin body from extending; the hole of the third locking hole (2-14) can abut the front end of the pin body of the first locking pin (2-3) through a slope, so that when the second valve (2-1) rotates, the pin body of the first locking pin (2-3) is pushed back to abut the guide slope (2-24) to guide the connecting rod (2-32) to be staggered with the shoulder (2-23).

11. A fluid connector comprising: It comprises: 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); a docking end (200) having a second seat body (2-2) and a second valve (2-1) rotatably arranged on the second seat body (2-2), the first valve (1-1) and the second valve (2-1) are connected by a torque transmission structure to be able to rotate synchronously; an operation part (300) located outside the first seat body (1-2), fixedly connected with the first valve (1-1) to be able to drive the first valve (1-1) to rotate, the first locking structure (3) of the operation part (300) and the second locking structure (4) on the second seat body (2-2) relatively rotate around the rotation axis of the first valve (1-1) to realize axial clamping.

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