Fluid connector and valve assembly

Abstract

A fluid connector and a valve assembly, which relate to the technical field of fluid communication. The fluid connector comprises a plurality of connecting ends (2), wherein at least two fitting connecting ends (2) are locked by means of engagement hooks (222) and engagement shoulders, each engagement hook (222) comprising a shank portion (2221) and a hook portion (2222); each hook portion (2222) protrudes from the corresponding shank portion (2221) and extends into an engagement position where the hook portion (2222) abuts against the corresponding engagement shoulder so as to achieve locking; and the protruding direction of each hook portion (2222) is consistent with the movement direction of the hook portion (2222) when entering the engagement position. By means of adjusting the protruding direction of an engagement structure, the additional space occupied by a protruding part in a valve (22) is reduced, thereby reducing the impact of the engagement structure on the sizes of the valve (22) and the fluid connector.

Description

Fluid connector and valve assembly

[0001] This application claims priority to the Chinese patent application No. 202421182426.9, filed on May 24, 2024, and entitled "A fluid connector and valve assembly", 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 communication, in particular to a fluid connector. In addition, the present application also relates to a valve assembly. BACKGROUND

[0003] At present, the existing fluid connector usually includes a first connecting piece and a second connecting piece matched with each other, and the structures of the two connecting pieces can be the same or different. When the first connecting piece and the second connecting piece are disconnected, each of the two connecting pieces is individually sealed to disconnect the fluid source and prevent fluid leakage and spraying. When the first connecting piece and the second connecting piece are connected, the valve in the connecting piece is opened by rotating, sliding or other ways, so that the fluid can be communicated between the first connecting piece and the second connecting piece.

[0004] In the process of implementing the present application, the inventors found that at least the following problems exist in the prior art:

[0005] In the existing connecting piece, the clamping structure of the valve seat is usually used to achieve clamping with the valve, so as to push the valve to move and achieve the opening and closing of the fluid connector. The clamping structure also needs to achieve the axial locking of the connecting piece, so the clamping structure needs to have a certain protruding part to achieve the axial positioning with the other connecting piece. However, the protruding direction of the protruding part is not consistent with the moving direction of the clamping structure when the clamping structure is clamped, which will cause the protruding part to occupy additional space on the valve, affecting the overall size of the valve and the fluid connector.

[0006] 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 to be solved by those skilled in the art. SUMMARY

[0007] The purpose of the present application is to provide a fluid connector which can reduce the space occupied by the protruding part on the valve, thereby reducing the influence of the clamping structure on the size of the valve and the fluid connector.

[0008] To achieve the above-mentioned purpose, the present application provides a fluid connector, which includes a plurality of connecting ends, at least two connecting ends matched with each other are locked by a clamping hook and a clamping shoulder, the clamping hook includes a handle part and a hook part; the hook part protrudes from the handle part and is arranged to extend into a clamping position abutting against the clamping shoulder to achieve locking; the protruding direction of the hook part is consistent with the moving direction of the hook part into the clamping position.

[0009] Optionally, the connecting end comprises a valve seat and a valve; the valve of one of the connecting ends is in limited cooperation with the clamping hook of the other connecting end, so as to drive the valve to open / close the communication passage corresponding to the valve seat when the clamping hook moves in the direction of entering the clamping position.

[0010] Optionally, the clamping hook rotates relative to the clamping shoulder around a rotation axis to enter the clamping position; the hook portion protrudes from the handle portion along the circumferential direction around the rotation axis; the valve rotates relative to the valve seat around the rotation axis to open / close the communication passage.

[0011] Optionally, at least one of the connecting ends is provided with a slot for the clamping hook to pass through, and a hole end wall on one side of the slot in the circumferential direction is the clamping shoulder.

[0012] Optionally, in at least one set of matched clamping hook and clamping shoulder, the clamping hook and the clamping shoulder are respectively arranged in the valve of one connecting end and the valve of the other connecting end.

[0013] Optionally, in at least one set of matched clamping hook and clamping shoulder, the clamping hook and the clamping shoulder are respectively arranged in the valve seat of one connecting end and the valve seat of the other connecting end, and the valve seat is rotationally arranged on a seat body.

[0014] Optionally, the valve is located inside the valve seat, and an arc-shaped hole for the clamping hook to pass through is formed on the valve seat; after the clamping hook passes through the arc-shaped hole, the clamping hook rotates relative to the clamping shoulder to enter the clamping position, and the clamping hook can rotate in the circumferential direction of the valve in the arc-shaped hole.

[0015] Optionally, the valve is located on the end face opposite to the valve seat, and the two valves are arranged opposite to each other; the clamping hook of one connecting end rotates relative to the clamping shoulder of the other connecting end to enter the clamping position.

[0016] Optionally, a limiting portion is arranged on the valve seat, the limiting portion comprises a first limiting protrusion arranged on the outer periphery of the corresponding valve, and a second limiting protrusion arranged on the valve and embedded between the first limiting protrusion and the valve seat, and the first limiting protrusion and the second limiting protrusion limit in the axial direction of the valve.

[0017] Optionally, an operation portion is further included, and the operation portion is connected with the valve to drive the two valves to rotate relative to each other and / or to drive the two valves to rotate synchronously in the circumferential direction.

[0018] The valve assembly comprises a plurality of valves, at least two of which are locked by a clasp and a clasp shoulder, the clasp comprising a handle and a hook, the hook being arranged protruding from the handle to extend into a clasp position abutting the clasp shoulder to achieve locking, the protruding direction of the hook being consistent with the moving direction of the hook into the clasp position.

[0019] Compared with the prior art, the technical scheme provided by the application has at least the following beneficial effects:

[0020] The clasp and the clasp shoulder are used to lock the two connecting ends, the clasp comprises a handle and a hook, the hook is arranged protruding from the handle to form a protruding part, so that the protruding part extends into the corresponding position of the clasp shoulder and abuts against it to achieve clasp locking, and the protruding direction of the hook is consistent with the moving direction of the hook into the clasp position, so that when the clasp is clamped with the clasp shoulder, the protruding hook will coincide with the path of the handle, and then the hook will finally achieve limiting clamping with the clasp shoulder on the path, thereby avoiding clamping the hook with the clasp shoulder on other paths and reducing the space occupied by the hook for clamping with the clasp shoulder. In summary, the application can reduce the space occupied by the protruding part of the clamping structure for the valve, thereby reducing the influence of the clamping structure on the size of the valve and the fluid connector. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0022] Fig. 1 is a schematic view of a fluid connector and a fluid passage connecting structure provided by an embodiment of the application;

[0023] Fig. 2 is a schematic view of a connecting end arrangement structure provided by an embodiment of the application;

[0024] Fig. 3 is a schematic view of the cross-sectional structure of Fig. 2;

[0025] Fig. 4 is a schematic view of another corresponding connecting end structure provided by an embodiment of the application;

[0026] Fig. 5 is a schematic view of the cross-sectional structure of Fig. 4.

[0027] In the drawings: 1, fluid passage; 2, connecting end; 21, valve seat; 211, communication channel; 22, valve; 221, communication part; 222, clasp; 2221, handle; 2222, hook; 223, second limiting protrusion; 224, avoiding slot; 3, limiting part; 31, first limiting protrusion; 4, operation part. DETAILED DESCRIPTION

[0028] 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 of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0029] It should be noted that, in the present embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "rear" and the like 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 thus cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] When connecting the corresponding fluid passages, the fluid connector is installed on one fluid pipe (or a distribution water collector) by the first connecting piece, and installed on another fluid pipe (or a liquid cooling terminal) by the second connecting piece, and the fluid connector for controlling fluid flow or shut-off is formed by the cooperation of the first connecting piece and the second connecting piece.

[0032] In the process of controlling fluid flow or shut-off of the fluid connector, the valve is usually driven to move by the valve seat, that is, the valve seat in the first connecting piece is provided with a clamping structure, the clamping structure is clamped with the valve in the second connecting piece, so as to drive the valve in the second connecting piece to move; similarly, the valve seat of the second connecting piece can also be provided with a clamping structure, and the clamping structure is clamped with the valve in the first connecting piece, so as to drive the valve in the first connecting piece to move, so as to realize the transmission of the valve, and finally in the process of valve transmission, the communication part on the valve is communicated with the communication channel on the valve seat or shut-off, so as to communicate or shut-off the corresponding fluid passages. At the same time, the clamping structure includes a handle and a protruding part for realizing the axial locking of the two connecting pieces. Since the protruding direction of the protruding part is not consistent with the movement direction of the clamping structure when the clamping structure is clamped, the protruding part will occupy other path space in addition to the movement path of the handle when the clamping structure is clamped with the valve, and will additionally occupy the space on the valve when the protruding part realizes the axial locking, so as to affect the overall size of the valve and the fluid connector. Based on the above status, the present application provides a fluid connector to improve the influence of the clamping structure on the overall size of the valve and the fluid connector.

[0033] As shown in Fig. 1, in the embodiment, a fluid connector is provided, which comprises a plurality of connecting ends 2. Generally, according to the characteristics of the fluid connector itself, it is required to complete the connection of two or more fluid passages 1 on both sides of the fluid connector, and thus the number of connecting ends 2 is at least two.

[0034] The matched connecting end 2 is locked by the hook 222 and the shoulder, so as to ensure the stability of the fluid connector in use. As shown in Figs. 2 and 3, the hook 222 comprises a handle 2221 and a hook portion 2222, and the hook portion 2222 is protruded from the handle 2221. The protruded part of the hook portion 2222 extends into the clamping position abutting against the shoulder, so as to realize the axial locking between the corresponding connecting ends 2.

[0035] It should be noted that the protruding direction of the hook portion 2222 needs to be consistent with the moving direction of the hook portion 2222 into the clamping position, so that when the hook 222 is clamped with the shoulder, the protruded hook portion 2222 is coincident with the path of the handle 2221, and then the hook portion 2222 will finally realize the limiting clamping with the shoulder on the path, so as to avoid the clamping of the hook portion 2222 with the shoulder on other paths, and reduce the additional space occupied by the hook portion 2222 for realizing the clamping with the shoulder. In summary, the application can reduce the additional space occupied by the protruded part of the clamping structure for the valve 22, so as to reduce the influence of the clamping structure on the size of the valve 22 and the fluid connector.

[0036] The above connecting end 2 comprises a valve seat 21 and a valve 22, and in the two matched connecting ends 2, the valve 22 of one connecting end 2 is limitedly matched with the hook 222 of the other connecting end 2, so as to drive the valve 22 to move to open and close the communication passage 211 of the corresponding valve seat 21 when the hook 222 moves along the moving direction into the clamping position. In other words, on the one hand, the hook 222 needs to enter the clamping position and be clamped with the shoulder to realize the axial locking of the corresponding connecting end 2, and on the other hand, the hook 222 needs to realize the limiting clamping with the valve 22 when reaching the clamping position, so as to drive the valve 22 to move to open and close the communication passage 211 of the corresponding valve seat 21.

[0037] It should be noted that each valve seat 21 has a communication passage 211, and when the fluid passage 1 is connected with the valve seat 21, the fluid passage 1 can be in communication with the communication passage 211, but whether the communication passages 211 between the valve seats 21 are in communication needs to be determined by the corresponding valve 22.

[0038] The number of the communication channels 211 on the valve seat 21 is determined according to the number of the fluid passages 1, and a plurality of other communication channels 211 can be arranged on one valve seat 21, please refer to FIG. 1, and the plurality of communication channels 211 can correspond to the plurality of fluid passages 1 one by one, but the number of the communication channels 211 of two different valve seats 21 in one fluid connector can be the same or different, and the positions can be one by one or staggered, but it is necessary to ensure that there is a position during the movement of the valve 22 to meet the communication of the communication channels 211 on the corresponding two valve seats 21, and another position to meet the shutoff of the communication channels 211 on the corresponding two valve seats 21.

[0039] In addition, if the number of the connecting ends 2 is two, then the corresponding two valves 22 can be directly arranged on the two valve seats 21, so that the communication of the communication channels 211 on the corresponding two valve seats 21 is realized by the movement of the valve 22 relative to the valve seat 21; if the number of the connecting ends 2 is greater than two, here taking three connecting ends 2 as an example, one connecting end 2 needs to be connected with the other two connecting ends 2 at the same time, here the three connecting ends 2 are sequentially referred to as the first connecting end, the second connecting end and the third connecting end, and the part of the communication channels 211 of the corresponding valve seat 21 in the first connecting end needs to be controlled to be opened and closed by the corresponding two valves 22 with the part of the communication channels 211 of the corresponding valve seat 21 in the second connecting end, and the other part of the communication channels 211 on the first connecting end also needs to be controlled to be opened and closed by two valves 22 with the part of the communication channels 211 on the third connecting end, and similarly, the other part of the communication channels 211 on the second connecting end and the other part of the communication channels 211 on the third connecting end are controlled to be opened and closed by two valves 22, so as to form a triangular connection structure, and the connection relationship between the three connecting ends 2 is two-by-two connection. That is to say, even if the number of the connecting ends 2 is four, five, six or the like, here we only need to consider the two-by-two connection relationship between the adjacent two connecting ends 2, which is equivalent to the connection relationship when the number of the connecting ends 2 is two.

[0040] On this basis, the present application takes two connecting ends 2 as an example to introduce, and when the number of the connecting ends 2 is greater than two, please refer to the connection relationship between the two connecting ends 2. Further, the valve 22 is rotationally arranged on the corresponding valve seat 21, and the hook 222 will rotate relative to the hook shoulder along the rotation axis of the valve 22, so as to enter the clamping position of the two. At the same time, the hook part 2222 of the hook 222 protrudes from the handle part 2221 along the circumferential direction of the rotation axis of the valve 22, so that the movement path of the hook part 2222 coincides with the movement path of the handle part 2221, so as to reduce the additional movement path of the hook part 2222 during the movement.

[0041] In addition, the at least one connecting end 2 is provided with a clearance slot 224 for the hook 222 to pass through, and the hole end wall on one side of the clearance slot 224 in the circumferential direction is a hook shoulder. Specifically, the clearance slot 224 is located on the valve 22, and after the hook 222 passes through the clearance slot 224, the hook portion 2222 can abut against the hole end wall of the clearance slot 224, thereby achieving limiting clamping in the axial direction of the valve 22, so that the two connecting ends 2 are axially locked. Since the hook portion 2222 protrudes in the axial direction of the valve 22, the hook portion 2222 will abut against the hole end wall on one side of the clearance slot 224 in the circumferential direction.

[0042] In some embodiments, among the at least one set of matched hooks 222 and hook shoulders, the hook 222 and the hook shoulder are respectively arranged in the valve 22 of one connecting end 2 and in the valve 22 of the other connecting end 2, so as to drive the other valve 22 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 hook shoulder with the rotation axis of the valve 22 as the center, and the hook 222 gradually reaches the clamping position with the hook shoulder. At this time, the hook portion 2222 will be clamped and limited in the axial direction of the valve 22, thereby achieving axial locking of the two connecting ends 2. At the same time, the handle portion 2221 will abut against the slot wall of the clearance slot 224, thereby achieving circumferential limiting. At this time, rotating the valve 22 can drive the other valve 22 to rotate synchronously, thereby achieving synchronous opening and closing of the communication passage 211.

[0043] In some embodiments, among the at least one set of matched hooks 222 and hook shoulders, the hook 222 and the hook shoulder are respectively arranged in the valve seat 21 of one connecting end 2 and in the valve 22 of the other connecting end 2, and the valve seat 21 is rotationally arranged on the seat body, so as to drive the valve 22 to rotate through the rotation of the valve seat 21. That is, when the valve seat 21 with the hook 222 rotates, the hook 222 will rotate relative to the valve 22 of the other connecting end 2, so that the hook 222 gradually reaches the clamping position with the hook shoulder. At this time, the hook portion 2222 will be clamped and limited in the axial direction of the valve 22, thereby achieving axial locking of the two connecting ends 2. At the same time, the handle portion 2221 will abut against the slot wall of the clearance slot 224, thereby achieving circumferential limiting. At this time, rotating the valve seat 21 can drive the valve 22 on the other connecting end 2 to rotate synchronously, thereby achieving opening and closing of the communication passage 211.

[0044] Of course, hooks 222 can be arranged on both valve seats 21, and corresponding hook shoulders can be arranged on both valves 22, so that the valve seat 21 of one connecting end 2 can adjust the rotation of the valve 22 of the other connecting end 2.

[0045] It should be noted that for a connection end 2, the valve 22 can be arranged inside the corresponding valve seat 21, or on the end face opposite the corresponding valve seat 21. When located inside the valve seat 21, an arc-shaped hole is formed in the valve seat 21 for the clamping hook 222 to pass through, and the clamping hook 222 rotates relative to the clamping shoulder to enter the clamping position after penetrating the arc-shaped hole, and the clamping hook 222 can rotate in the circumferential direction of the valve 22 in the arc-shaped hole. When the valve 22 is located on the end face opposite the valve seat 21, and the two valves 22 need to be arranged oppositely, the clamping hook 222 of one connection end 2 rotates relative to the clamping shoulder of the other connection end 2 to enter the clamping position.

[0046] It should be noted that the opposite sides of the valve seat 21 refer to the side facing each other of the two valve seats 21, and the two valves 22 need to be arranged oppositely, and the valve 22 has at least part of the structure exposed relative to the valve seat 21 to meet the movement conditions of the clamping hook 222.

[0047] However, for the above-mentioned valve 22, other shapes other than a disc shape can also be provided, such as regular polygons such as rectangles, and irregular shapes, which are not limited here. However, it should be noted that for other shapes other than a disc shape, the axial direction can be explained as the direction perpendicular to the plane of the valve 2, and the circumferential direction is the direction of rotation of the valve 2 around the rotation axis of the valve 2.

[0048] In addition, before the clamping hook 222 and the clamping shoulder reach the clamping limit position, the clamping hook 222 first needs to be inserted into the avoidance groove hole 224 formed by the clamping shoulder, at which time the clamping hook 222 and the clamping shoulder do not require clamping. After the clamping hook 222 is inserted in place, relative rotation or relative sliding occurs between the two valves 22, so that the hook portion 2222 enters the clamping position, at which time the hook portion 2222 can abut against the hole end wall of the avoidance groove hole 224 to achieve axial interference.

[0049] At the same time, after the hook portion 2222 reaches the clamping position, the handle portion 2221 is at least in contact with the groove wall of the avoidance groove hole 224 in the circumferential direction of the valve 22, thereby achieving circumferential limiting. That is, before the hook portion 2222 reaches the clamping position, the handle portion 2221 has a certain reserved space in the direction of relative movement with the avoidance groove hole 224, so that the clamping hook 222 can move relative to the avoidance groove hole 224.

[0050] In order to improve the stability of the valve 22 during rotation, the number of clamping hooks 222 and avoidance groove holes 224 is set to be multiple, and one-to-one correspondence is provided. Please refer to FIG. 2 and FIG. 4, multiple clamping hooks 222 are uniformly distributed along the circumferential direction of the valve 22, so that the two valves 22 are connected in axial limiting and circumferential limiting, and the stress is more uniform, thereby ensuring the stability of the rotation of the valve 22.

[0051] In addition, in the case that the valve 22 is arranged on the opposite side of the valve seat 21, a limiting part 3 is arranged on the valve seat 21, please refer to FIG. 1 to FIG. 5, the limiting part 3 can limit the valve 22 axially on the valve seat 21, so that the valve 22 is arranged only on the valve seat 21. While the limiting part 3 includes a first limiting protrusion 31 arranged on the outer periphery of the corresponding valve 22, 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 FIG. 3 and FIG. 5, the first limiting protrusion 31 and the second limiting protrusion 223 limit axially on the valve 22, so as to ensure that the valve 22 is stationary in the axial direction relative to the valve seat 21.

[0052] It should be noted 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 an intermittent annular protrusion, or both can be a continuous annular protrusion. Of course, the first limiting protrusion 31 and the second limiting protrusion can also be arranged as intermittent annular protrusions, but it is necessary to ensure that the protruding part of the first limiting protrusion 31 does not come off from the intermittent part of the second limiting protrusion 223, and similarly, the protruding part of the second limiting protrusion 223 does not come off from the intermittent part of the first limiting protrusion 31, so as to ensure that the valve 22 can rotate stably on the valve seat 21.

[0053] In addition, the present application also includes an operating part 4, please refer to FIG. 1 and FIG. 2, the operating part 4 can be connected with the valve 22, so as to drive the relative movement of the two valves 22 and / or drive the circumferential transmission of the two valves 223. The operating part 4 can be an exposed structure, that is, a strip-shaped hole is formed on the limiting part 3 (not shown in the figure), one side of the exposed structure is connected with the valve 22, and the other side is located outside the limiting part 3, so as to realize the relative rotation of the two valves 22 and the circumferential synchronous rotation of the two valves 22 by controlling the operating part 4.

[0054] It should be noted that the limiting part 3 is arranged on the valve seat 21, please refer to FIG. 1 to FIG. 5, the limiting part 3 can limit the valve 22 axially on the valve seat 21, so that the valve 22 is arranged only on the valve seat 21. While the limiting part 3 includes a first limiting protrusion 31 arranged on the outer periphery of the corresponding valve 22, 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 FIG. 3 and FIG. 5, the first limiting protrusion 31 and the second limiting protrusion 223 limit axially on the valve 22, so as to ensure that the valve 22 is stationary in the axial direction relative to the valve seat 21.

[0055] In addition, the application further provides a valve assembly, which comprises a plurality of valves 22, and at least two cooperating valves 22 are locked by a clamping hook 222 and a clamping shoulder. The clamping hook 222 comprises a handle 2221 and a hook 2222. The hook 2222 protrudes from the handle 2221 and extends into a clamping position abutting against the clamping shoulder to realize the locking. The protruding direction of the hook 2222 is consistent with the moving direction of the hook 2222 into the clamping position. Therefore, the valve assembly can also make the protruding hook 2222 coincide with the handle 2221 when the clamping hook 222 is clamped with the clamping shoulder. Then, the hook 2222 will also finally realize the limiting clamping with the clamping shoulder on the path, thereby avoiding the hook 2222 clamped with the clamping shoulder on other paths and reducing the space of the valve 22 occupied by the hook 2222 for realizing the clamping with the clamping shoulder.

[0056] It should be noted that the relative terms, such as first and second, in the present specification are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0057] The principles and implementation modes of the present application are described by using specific examples in the present specification. The above examples are only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the protection scope of the present application.

Claims

1. A fluid connector, characterized by, The connecting end (2) comprises a valve seat (21) and a valve door (22); in two connecting ends (2), the valve door (22) of one connecting end (2) is limitedly matched with the clamping hook (222) on the other connecting end (2), so as to drive the valve door (22) to open and close the communication passage (211) corresponding to the valve seat (21) when the clamping hook (222) moves along the moving direction into the clamping position.

2. The fluid connector of claim 1, wherein, The clamping hook (222) rotates relative to the clamping shoulder around a rotation axis to enter the clamping position; the hook portion (2222) is arranged protruding from the handle portion (2221) along the circumferential direction around the rotation axis; the valve door (22) rotates relative to the valve seat (21) around the rotation axis to open and close the communication passage (211).

3. The fluid connector of claim 2, wherein, At least one of the connecting ends (2) is provided with a avoiding slot hole (224) for the clamping hook (222) to pass through, and the hole end wall on one side of the avoiding slot hole (224) in the circumferential direction is the clamping shoulder.

4. The fluid connector of claim 3, wherein, In at least one set of matched clamping hooks (222) and clamping shoulders, the clamping hook (222) and the clamping shoulder are respectively arranged in the valve door (22) of one connecting end (2) and the valve door (22) of the other connecting end (2).

5. The fluid connector of claim 3, wherein, In at least one set of matched clamping hooks (222) and clamping shoulders, the clamping hook (222) and the clamping shoulder are respectively arranged in the valve seat (21) of one connecting end (2) and the valve door (22) of the other connecting end (2), and the valve seat (21) is rotationally arranged on a seat body.

6. The fluid connector of claim 3, wherein, The valve door (22) is located inside the valve seat (21), and an arc-shaped hole for the clamping hook (222) to pass through is formed on the valve seat (21), the clamping hook (222) rotates relative to the clamping shoulder to enter the clamping position after passing through the arc-shaped hole, and the clamping hook (222) can rotate circumferentially around the valve door (22) in the arc-shaped hole.

7. The fluid connector of claim 5 or 6, wherein, The valve door (22) is located on the end face opposite to the valve seat (21), and two valve doors (22) are oppositely arranged, and the clamping hook (222) of one connecting end (2) rotates relative to the clamping shoulder of the other connecting end (2) to enter the clamping position.

8. The fluid connector of claim 5 or 6, wherein, ​ 9. The fluid connector of claim 8, wherein, The valve seat (21) is provided with a limiting part (3), which comprises a first limiting protrusion (31) arranged on the outer periphery of the 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), and the first limiting protrusion (31) and the second limiting protrusion (223) limit the valve (22) in the axial direction.

10. The fluid connector of claim 9, wherein, Further comprising an operating part (4) connected with the valve (22) to drive the two valves (22) to rotate relatively and / or to drive the two valves (22) to rotate synchronously in the circumferential direction.

11. A valve assembly comprising: The valve (22) comprises a plurality of valves (22), and at least two cooperating valves (22) are locked by a hook (222) and a shoulder, the hook (222) comprises a handle (2221) and a hook (2222), the hook (2222) is arranged protruding from the handle (2221) to extend into a clamping position abutting against the shoulder to achieve locking, and the protruding direction of the hook (2222) is consistent with the moving direction of the hook (2222) into the clamping position.

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