Fluid connector and valve assembly

Abstract

The utility model discloses a fluid connector and a valve assembly, and relates to the technical field of fluid communication, the fluid connector comprises a plurality of connecting ends, at least two matched connecting ends are locked through a clamping hook and a clamping shoulder, and the clamping hook comprises a handle part and a hook part; the hook part protrudes out of the handle part so as to extend into the clamping position abutting against the clamping shoulder, so that locking is achieved; and the protruding direction of the hook part is consistent with the moving direction of the hook part entering the clamping position. By adjusting the protruding direction of the clamping structure, the space additionally occupied by the protruding part of the valve is reduced, and the influence of the clamping structure on the size of the valve and the size of the fluid connector is reduced.

Description

Technical Field

[0001] The present application relates to the field of fluid communication technology, and in particular to a fluid connector. In addition, the present application also relates to a valve assembly. Background Art

[0002] At present, the existing fluid connectors usually include a first connector and a second connector that match each other, and the structures of the two connectors can be the same or different. When the first connector and the second connector are disconnected, they are sealed separately to disconnect the fluid source and prevent fluid leakage and spraying; when the first connector and the second connector are connected, the valve in the connector is opened by rotating, sliding, etc., so that the fluid can communicate between the first connector and the second connector.

[0003] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0004] In existing connectors, the valve seat is usually connected to the valve by a clamping structure, so as to push the valve to open and close the fluid connector. The clamping structure also needs to achieve axial locking of the connector. Therefore, the clamping structure needs to have a certain protruding part so that the protruding part and the corresponding other connector can be axially limited. However, the protruding direction of the protruding part is not consistent with the active direction of the clamping structure when the clamping is achieved, which will cause the protruding part to occupy additional space on the valve, affecting the overall size of the valve and the fluid connector.

[0005] Therefore, in view of the above technical problems, how to reduce the influence of the clamping structure on the size of the valve and the fluid connector is a technical problem that technical personnel in this field need to solve. Utility Model Content

[0006] The purpose of the present application is to provide a fluid connector that can reduce the extra space occupied by the protruding portion of the valve, thereby reducing the impact of the clamping structure on the size of the valve and the fluid connector.

[0007] To achieve the above-mentioned purpose, the present application provides a fluid connector, including multiple connection ends, at least two matching connection ends are locked by a hook and a shoulder, the hook includes a handle and a hook; the hook protrudes from the handle to extend into a locking position abutting against the shoulder to achieve locking; the protruding direction of the hook is consistent with the moving direction of the hook entering the locking position.

[0008] Optionally, the connecting end includes a valve seat and a valve; among the two connecting ends, the valve of one connecting end cooperates with the hook limiter on the other connecting end, so that when the hook moves along the moving direction to enter the locking position, the valve is driven to move to open and close the connecting channel corresponding to the valve seat.

[0009] Optionally, the hook rotates relative to the shoulder around a rotation axis to enter the clamping position; the hook portion is arranged to protrude from the handle along a circumferential direction around the rotation axis; the valve rotates relative to the valve seat around the rotation axis to open and close the connecting channel.

[0010] Optionally, at least one of the connection ends is provided with an avoidance slot hole for the hook to pass through, and the hole end wall of the avoidance slot hole on one side along the circumferential direction is the clamping shoulder.

[0011] Optionally, in at least one set of matching hooks and shoulders, the hooks and shoulders are respectively arranged in the valve at one connecting end and in the valve at the other connecting end.

[0012] Optionally, in at least one set of matching hooks and shoulders, the hooks and shoulders are respectively arranged in the valve seat of one connecting end and in the valve seat of the other connecting end, and the valve seat is rotatably arranged on the seat body.

[0013] Optionally, the valve is located inside the valve seat, and the valve seat is provided with an arc-shaped hole for passing the hook. After passing through the arc-shaped hole, the hook rotates relative to the shoulder to enter the clamping position, and the hook can rotate circumferentially along the valve in the arc-shaped hole.

[0014] Optionally, the valve is located on the end surface on the opposite side of the valve seat, and the two valves are arranged opposite to each other, and the hook of one connecting end is rotated relative to the shoulder of the other connecting end to enter the clamping position.

[0015] Optionally, a limiting portion is provided on the valve seat, and the limiting portion includes a first limiting protrusion arranged on the outer periphery of the corresponding valve, and the valve is provided with a second limiting protrusion embedded between the first limiting protrusion and the valve seat, and the first limiting protrusion and the second limiting protrusion limit the axial direction of the valve.

[0016] Optionally, an operating unit is further included, wherein the operating unit is connected to the valves to drive the two valves to rotate relative to each other and / or drive the two valves to rotate synchronously in a circumferential direction.

[0017] A valve assembly includes multiple valves, at least two of the matching valves are locked by a hook and a shoulder, the hook includes a handle and a hook; the hook protrudes from the handle to extend into a locking position abutting against the shoulder to achieve locking; the protruding direction of the hook is consistent with the moving direction of the hook into the locking position.

[0018] Compared with the prior art, the technical solution provided by this application has at least the following beneficial effects:

[0019] The present application realizes the locking of the two connection ends through a hook and a shoulder, and the hook includes a handle and a hook, and the hook protrudes from the handle to form a protruding portion, so that the protruding portion is extended into the corresponding position of the shoulder and abuts against it to realize the locking; and the protruding direction of the hook is consistent with the moving direction of the hook entering the locking position, so that when the hook is engaged with the shoulder, the protruding hook will overlap with the handle path, and then the hook will eventually realize the limited engagement with the shoulder on the path, thereby avoiding the hook from engaging with the shoulder on other paths, and reducing the space of the valve that the hook occupies extra for the engagement with the shoulder. In summary, the present application can reduce the extra space of the valve occupied by the protruding part of the clamping structure, thereby reducing the influence of the clamping structure on the size of the valve and the fluid connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application 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 embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the connection structure between the fluid connector and the fluid passage provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of a connection terminal configuration structure provided in an embodiment of the present application;

[0023] Figure 3 for Figure 2 Schematic diagram of the cross-section structure;

[0024] Figure 4 A schematic diagram of another corresponding connection terminal structure provided in an embodiment of the present application;

[0025] Figure 5 for Figure 4 Schematic diagram of the cross-section structure.

[0026] In the figure: 1, fluid passage; 2, connecting end; 21, valve seat; 211, connecting channel; 22, valve; 221, connecting part; 222, hook; 2221, handle; 2222, hook; 223, second limiting protrusion; 224, avoidance slot; 3, limiting part; 31, first limiting protrusion; 4, operating part. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] When the fluid connector connects the corresponding fluid passages, the first connecting piece is installed on a fluid pipeline (or manifold), and the second connecting piece is installed on another fluid pipeline (or liquid cooling terminal). Through the cooperation of the first connecting piece and the second connecting piece, a fluid connector for controlling the flow or shutoff of the fluid is formed.

[0031] In the process of controlling the flow or shutoff of the fluid connector, the valve seat is usually used to drive the valve movement, that is, the valve seat in the first connector is provided with a clamping structure, and the clamping structure is clamped with the valve in the second connector, so as to drive the valve in the second connector to move; similarly, the valve seat of the second connector can also be provided with a clamping structure, and is clamped with the valve in the first connector, so as to drive the valve in the first connector to move, thereby realizing the transmission of the valve, and finally in the process of valve transmission, the connecting part on the valve is connected or disconnected with the connecting channel on the valve seat, so that the corresponding fluid path is connected or disconnected. At the same time, the clamping structure includes a handle and a protruding part for realizing axial locking of the two connectors. Since the protruding direction of the protruding part is inconsistent with the active direction of the clamping structure when the clamping structure is realized, when the clamping structure is clamped with the valve, the protruding part will additionally occupy other path spaces except the active path of the handle, and additionally occupy space on the valve when the protruding part realizes axial locking, thereby affecting the overall size of the valve and the fluid connector. Based on the above situation, the present application proposes a fluid connector to improve the influence of the clamping structure on the overall size of the valve and the fluid connector.

[0032] like Figure 1As shown, in this embodiment, a fluid connector is provided, including a plurality of connection ends 2. Generally speaking, according to the characteristics of the fluid connector itself, it is necessary to complete the connection of at least two or more fluid passages 1 on both sides of the fluid connector, so the number of the connection ends 2 is at least two.

[0033] The matching connection end 2 is locked by the hook 222 and the shoulder to ensure the stability of the fluid connector when in use. Figure 2 and Figure 3 The hook 222 includes a handle 2221 and a hook 2222, and the hook 2222 is protruded from the handle 2221, and the protruding part of the hook 2222 extends into the clamping position abutting against the clamping shoulder, thereby realizing axial locking between the corresponding connecting ends 2.

[0034] It should be pointed out that the protruding direction of the hook portion 2222 needs to be consistent with the moving direction of the hook portion 2222 entering the clamping position so that when the clamping hook 222 is clamped with the clamping shoulder, the protruding hook portion 2222 will overlap with the path of the handle portion 2221, and the hook portion 2222 will eventually achieve limited clamping with the clamping shoulder on this path, thereby avoiding the hook portion 2222 from clamping with the clamping shoulder on other paths, and reducing the space of the valve 22 that the hook portion 2222 occupies additionally for clamping with the clamping shoulder. In summary, the present application can reduce the space of the valve that is additionally occupied by the protruding part of the clamping structure, thereby reducing the impact of the clamping structure on the size of the valve 22 and the fluid connector.

[0035] The above-mentioned connection end 2 includes a valve seat 21 and a valve 22, and in the two matching connection ends 2, the valve 22 of one connection end 2 is limitedly matched with the hook 222 on the other connection end 2, so that when the hook 222 moves along the moving direction of entering the clamping position, the valve 22 is driven to move to open and close the communication channel 211 of the corresponding valve seat 21. In other words, the hook 222 needs to enter the clamping position and clamp with the clamp shoulder to achieve axial locking of the corresponding connection end 2, and the hook 222 needs to achieve limited position matching with the valve 22 when reaching the clamping position, so as to drive the valve 22 to move to open and close the communication channel 211 of the corresponding valve seat 21.

[0036] It should be noted that each valve seat 21 has a communication channel 211. When the fluid passage 1 is connected to the valve seat 21, the fluid passage 1 can maintain communication with the communication channel 211, but whether the communication channels 211 between the valve seats 21 are connected needs to be determined by the corresponding valve 22.

[0037] The number of the communication channels 211 on the valve seat 21 is determined by the number of the fluid passages 1. A plurality of other communication channels 211 arranged in parallel with each other can be extended from one valve seat 21. Figure 1, and the multiple connecting channels 211 can correspond one-to-one to the multiple fluid paths 1, but for two different valve seats 21 in a fluid connector, the number of connecting channels 211 can be the same or different, and the positions can correspond one-to-one or be staggered, but it is necessary to ensure that the valve 22 has a position during the activity that satisfies the connection of the connecting channels 211 on the corresponding two valve seats 21, and another position that satisfies the shutoff of the connecting channels 211 on the corresponding two valve seats 21.

[0038] In addition, if the number of the connection ends 2 is two, then two corresponding valves 22 can be directly set on the two valve seats 21, so that the connection of the connecting channels 211 on the corresponding two valve seats 21 is achieved through the movement of the valves 22 relative to the valve seats 21; then if the number of the connection ends 2 is greater than two, here taking three connection ends 2 as an example, then one connection end 2 needs to be connected to the other two connection ends 2 at the same time, and the three connection ends 2 are sequentially recorded as the first connection end, the second connection end and the third connection end, and the partial connecting channel 211 of the corresponding valve seat 21 in the first connection end needs to be controlled to open and close with the partial connecting channel 211 of the corresponding valve seat 21 of the second connection end through the corresponding two valves 22, and the other partial connecting channel 211 on the first connection end also needs to be controlled to open and close with the partial connecting channel 211 on the third connection end through the two valves 22. Similarly, the other partial connecting channel 211 on the second connection end and the other partial connecting channel 211 on the third connection end are controlled to open and close through the two valves 22, thereby forming a connection structure similar to a triangle, so that the connection relationship between the three connection ends 2 is two-to-two. That is to say, even if the number of connection terminals 2 is four, five, six, etc., what needs to be considered here is the connection relationship between two adjacent connection terminals 2, which is equivalent to the connection relationship mentioned above when the number of connection terminals 2 is two.

[0039] On this basis, the present application will be introduced with two connecting ends 2 as an example. When the number of connecting ends 2 is greater than two, please also refer to the connection relationship between the two connecting ends 2. Furthermore, the valve 22 is rotatably set on the corresponding valve seat 21, and the hook 222 will rotate relative to the shoulder with the rotation axis of the valve 22, so as to enter the clamping position of the two. At the same time, the hook portion 2222 of the hook 222 is protruding from the handle portion 2221 along the circumferential direction of the rotation axis of the valve 22, so that the movement path of the hook portion 2222 coincides with the movement path of the handle portion 2221, so as to reduce the additional movement path of the hook portion 2222 during the movement process.

[0040] In addition, at least one of the connection ends 2 is provided with an avoidance slot 224 for the hook 222 to pass through, and the hole end wall of the avoidance slot 224 on one side in the circumferential direction is a clamping shoulder. Specifically, the avoidance slot 224 is located on the valve 22, and after the hook 222 passes through the avoidance slot 224, the hook 2222 can abut against the hole end wall of the avoidance slot 224, thereby achieving limited clamping in the axial direction of the valve 22, so that the two connection ends 2 are axially locked. Since the hook 2222 protrudes in the axial direction of the valve 22, the hook 2222 will abut against the hole end wall on one side in the circumferential direction of the avoidance slot 224.

[0041] In some embodiments, in at least one set of matching hooks 222 and shoulders, the hooks 222 and shoulders are respectively arranged in the valve 22 of one connecting end 2 and the valve 22 of the other connecting end 2, so that the other valve 22 is driven to rotate through the valve 22; that is, when the two valves 22 rotate relative to each other, the hook 222 also rotates relative to the shoulder with the rotation axis of the valve 22 as the center, and the hook 222 will gradually reach the engaging position with the shoulder. At this time, the hook 2222 will achieve engaging limit with the shoulder in the axial direction of the valve 22, thereby achieving axial locking of the two connecting ends 2; at the same time, the handle 2221 will abut against the groove wall of the avoidance groove 224 to achieve circumferential limit. At this time, rotating the valve 22 can drive the other valve 22 to rotate synchronously, thereby achieving synchronous opening and closing of the connecting channel 211.

[0042] In some embodiments, in at least one set of matching hooks 222 and shoulders, the hooks 222 and shoulders are respectively arranged in the valve seat 21 of one connection end 2 and in the valve 22 of the other connection end 2, and the valve seat 21 is rotatably arranged on the seat body, so that the valve 22 is driven to rotate by the rotation of the valve seat 21. That is to say, when the valve seat 21 with the hooks 222 rotates, the hooks 222 will rotate relative to the valve 22 of the other connection end 2, so that the hooks 222 gradually reach the engaging position with the shoulders, at which time the hooks 2222 will achieve engaging limit with the shoulders in the axial direction of the valve 22, thereby achieving axial locking of the two connection ends 2; at the same time, the handle 2221 will abut against the groove wall of the avoidance slot 224 to achieve circumferential limit, at which time the rotating valve seat 21 can drive the valve 22 on the other connection end 2 to rotate synchronously, thereby achieving the opening and closing of the connecting channel 211.

[0043] Of course, hooks 222 may be provided on both valve seats 21 , and correspondingly, shoulders may be provided on the two valves 22 , so that the valve seat 21 of one connection end 2 can adjust the rotation of the valve 22 of the other connection end 2 .

[0044] It should be noted that, for one connection end 2, the valve 22 can be arranged inside the corresponding valve seat 21, or on the end surface on the opposite side of the corresponding valve seat 21. When located inside the valve seat 21, the valve seat 21 is provided with an arc hole for passing the hook 222. After the hook 222 passes through the arc hole, it rotates relative to the shoulder to enter the clamping position, and the hook 222 can rotate circumferentially along the valve 22 in the arc hole. When the valve 22 is located on the end surface on the opposite side of the valve seat 21, and the two valves 22 need to be arranged relative to each other, the hook 222 of one connection end 2 rotates relative to the shoulder of the other connection end 2 to enter the clamping position.

[0045] It should be pointed out that the opposite side of the valve seat 21 refers to the side where the two valve seats 21 face each other, and the two valves 22 need to be arranged relatively to each other, and the valve 22 has at least a partially exposed structure relative to the valve seat 21 to meet the movement conditions of the hook 222 .

[0046] However, the valve 22 may be in other shapes besides a disc, such as a regular polygon such as a rectangle, or an irregular shape, and there is no restriction here. However, it should be noted that for other shapes besides a disc, the definitions of axial and circumferential directions can be interpreted as follows: axial direction refers to the direction perpendicular to the plane where the valve 2 is located, and circumferential direction refers to the direction around the rotation axis of the valve 2 during the rotation of the valve 2.

[0047] In addition, before the hook 222 and the shoulder reach the engaging limit state, the hook 222 needs to be inserted into the avoidance slot 224 forming the shoulder. At this time, the hook 222 and the shoulder are not required to be engaged. After the hook 222 is inserted into place, relative rotation or relative sliding occurs between the two valves 22, so that the hook 2222 enters the engaging position. At this time, the hook 2222 can abut against the end wall of the avoidance slot 224 to achieve axial interference.

[0048] At the same time, after the hook 2222 reaches the engaging position, the handle 2221 abuts against the groove wall of the avoidance slot 224 at least in the circumferential direction of the valve 22, thereby achieving circumferential limitation. In other words, before the hook 2222 reaches the engaging position, the handle 2221 has a certain reserved space at least in the direction of relative movement with the avoidance slot, so that the hook 222 can move relative to the avoidance slot 224.

[0049] In order to improve the stability of the valve 22 during the rotation process, the number of the hooks 222 and the avoidance slots 224 are set to be multiple, and they correspond one to one. Figure 2 and Figure 4 The plurality of hooks 222 are evenly distributed along the circumference of the valve 22 , so that the two valves 22 are subjected to more even force in the axial limit and circumferential limit connection, thereby ensuring the stability of the rotation of the valve 22 .

[0050] In addition, in the case where the valve 22 is arranged on the opposite side of the valve seat 21, it is also necessary to arrange a limiting portion 3 on the valve seat 21. Figures 1 to 5 The limiting part 3 can limit the valve 22 axially on the valve seat 21, so that the valve 22 can only be rotated on the valve seat 21. The limiting part 3 includes a first limiting protrusion 31 arranged on the outer periphery of the corresponding valve 22, and the valve 22 is provided with a second limiting protrusion 223 embedded between the first limiting protrusion 31 and the valve seat 21. Please refer to Figure 3 and Figure 5 The first limiting protrusion 31 and the second limiting protrusion 223 are limited in the axial direction of the valve 22, thereby ensuring that the valve 22 is stationary relative to the valve seat 21 in the axial direction.

[0051] It should be pointed out that one of the first limiting protrusion 31 and the second limiting protrusion 223 can be a continuous annular protrusion, and the other can be a discontinuous annular protrusion, or both can be set as continuous annular protrusions; of course, the first limiting protrusion 31 and the second limiting protrusion can also be set as discontinuous annular protrusions, but it is necessary to ensure that the raised portion of the first limiting protrusion 31 will not detach from the discontinuity of the second limiting protrusion 223, and similarly, the raised portion of the second limiting protrusion 223 will not detach from the discontinuity of the first limiting protrusion 31, thereby ensuring that the valve 22 can rotate stably on the valve seat 21.

[0052] In addition, this application also includes an operating unit 4, please refer to Figure 1 and Figure 2 The operating part 4 can be connected to the valve 22, thereby driving the two valves 22 to move relative to each other and / or driving the two valves 223 to transmit circumferentially. The operating part 4 can be an exposed structure, that is, a strip hole (not shown in the figure) is opened on the limit part 3, one side of the exposed structure is connected to the valve 22, and the other side is located outside the limit part 3, so that the relative rotation of the two valves 22 and the circumferential synchronous rotation of the two valves 22 can be achieved by controlling the operating part 4.

[0053] It should be noted that each valve core is provided with a connecting portion 221, please refer to Figures 1 to 5 The position of the communication portion 221 relative to the communication channel is adjusted by the activity of the valve, thereby realizing the opening and closing of the communication channel corresponding to the valve seat 21.

[0054] In addition, the present application also provides a valve assembly, which includes a plurality of valves 22, at least two matching valves 22 are locked by hooks 222 and shoulders, the hooks 222 include a handle 2221 and a hook 2222; the hook 2222 is protruding from the handle 2221 to extend into a clamping position abutting against the shoulder to achieve locking; the protruding direction of the hook 2222 is consistent with the moving direction of the hook 2222 entering the clamping position. Therefore, the valve assembly can also make the hook 2222 overlap with the path of the handle 2221 when the hook 222 is clamped with the shoulder, and the hook 2222 will eventually achieve limited clamping with the shoulder on this path, thereby avoiding the hook 2222 from clamping with the shoulder on other paths, reducing the space of the valve 22 occupied by the hook 2222 to achieve clamping with the shoulder.

[0055] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0056] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A fluid connector, characterized in that: The invention comprises a plurality of connection ends (2), wherein at least two matching connection ends (2) are locked by means of a hook (222) and a shoulder, wherein the hook (222) comprises a handle (2221) and a hook (2222); the hook (2222) is arranged to protrude from the handle (2221) so as to extend into a locking position abutting against the shoulder so as to achieve locking; and the protruding direction of the hook (2222) is consistent with the moving direction of the hook (2222) into the locking position.

2. The fluid connector according to claim 1, characterized in that: The connecting end (2) comprises a valve seat (21) and a valve (22); of the two connecting ends (2), the valve (22) of one connecting end (2) is limitedly matched with the hook (222) on the other connecting end (2), so that when the hook (222) moves along the moving direction to enter the locking position, the valve (22) is driven to move so as to open and close the communication channel (211) corresponding to the valve seat (21).

3. The fluid connector according to claim 2, characterized in that: The hook (222) rotates relative to the shoulder around a rotation axis to enter the clamping position; the hook portion (2222) is arranged to protrude from the handle portion (2221) along a circumferential direction around the rotation axis; the valve (22) rotates relative to the valve seat (21) around the rotation axis to open and close the connecting channel (211).

4. The fluid connector according to claim 3, characterized in that: At least one of the connection ends (2) is provided with an avoidance slot hole (224) for the hook (222) to pass through, and a hole end wall of the avoidance slot hole (224) on one side along the circumferential direction is the clamping shoulder.

5. The fluid connector according to claim 3, characterized in that: In at least one set of matching hooks (222) and shoulders, the hooks (222) and shoulders are respectively arranged in the valve (22) of one connection end (2) and in the valve (22) of another connection end (2).

6. The fluid connector according to claim 3, characterized in that: At least one set of matching hooks (222) and shoulders, wherein the hooks (222) and shoulders are respectively arranged in the valve seat (21) of one connection end (2) and in the valve (22) of the other connection end (2), and the valve seat (21) is rotatably arranged on the seat body.

7. The fluid connector according to claim 5 or 6, characterized in that: The valve (22) is located inside the valve seat (21), and the valve seat (21) is provided with an arc-shaped hole for the hook (222) to pass through. After passing through the arc-shaped hole, the hook (222) rotates relative to the shoulder to enter the clamping position, and the hook (222) can rotate in the arc-shaped hole along the circumference of the valve (22).

8. The fluid connector according to claim 5 or 6, characterized in that: The valve (22) is located on the end surface on the opposite side of the valve seat (21), and the two valves (22) are arranged opposite to each other, and the hook (222) of one connecting end (2) rotates relative to the shoulder of the other connecting end (2) to enter the locking position.

9. The fluid connector according to claim 8, characterized in that: A limiting portion (3) is provided on the valve seat (21), the limiting portion (3) comprising a first limiting protrusion (31) provided on the outer periphery of the corresponding valve (22), the valve (22) being provided with a second limiting protrusion (223) embedded between the first limiting protrusion (31) and the valve seat (21), the first limiting protrusion (31) and the second limiting protrusion (223) being limited in the axial direction of the valve (22).

10. The fluid connector according to claim 9, characterized in that: It also comprises an operating part (4), wherein the operating part (4) is connected to the valves (22) to drive the two valves (22) to rotate relative to each other and / or to drive the two valves (22) to rotate synchronously in a circumferential direction.

11. A valve assembly, characterized in that: The invention comprises a plurality of valves (22), wherein at least two of the matched valves (22) are locked by means of a hook (222) and a shoulder, wherein the hook (222) comprises a handle (2221) and a hook (2222); the hook (2222) is arranged to protrude from the handle (2221) so as to extend into a locking position abutting against the shoulder so as to achieve locking; and the protruding direction of the hook (2222) is consistent with the moving direction of the hook (2222) into the locking position.

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