Fluid connector, male end structure, and female end structure

Abstract

A fluid connector, comprising a male end structure (1) provided with a male end channel (1-1), and a female end structure (2) provided with a female end channel (2-1). The male end structure (1) is rotatably snap-fitted to the female end structure (2) by means of engaging protrusions (3) and engaging shoulders (4); an assembly slot (2-2) is provided on the mating side of the female end structure (2); an insertion portion (1-2) configured to be inserted into the assembly slot (2-2) along the rotation axis of the engaging protrusions (3) is provided on the mating side of the male end structure (1); the end face of the insertion portion (1-2) is provided with a male end mating port (1-3) of the male end channel (1-1), the slot bottom of the assembly slot (2-2) is provided with a female end mating port (2-3) of the female end channel (2-1), and the male end mating port (1-3) is used for mating with the female end mating port (2-3); and at least one of the engaging protrusions (3) is a first engaging protrusion (3-1) provided at the edge of the insertion portion (1-2), and at least one of the engaging shoulders (4) is a first engaging shoulder (4-1) provided on the slot wall of the assembly slot (2-2) to match the first engaging protrusion (3-1). The fluid connector can solve the problem that the size of the fluid connector is too large.

Description

Fluid connector, male structure and female structure

[0001] The present application claims priority to the Chinese patent application No. 202411048371.7, filed on July 31, 2024, and entitled "Fluid connector, male structure and female structure", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of channel connection, more particularly, to a fluid connector, and further relates to a male structure of a fluid connector and a female structure of a fluid connector. BACKGROUND

[0003] The fluid connector generally comprises a connecting end and a mating end, which can be the same or different in structure. When the connecting end and the mating end are disconnected, each of them is individually sealed to disconnect the fluid source and prevent fluid leakage and spraying. When the connecting end and the mating end are connected, the valve core structure in them is opened to enable fluid communication between the connecting end and the mating end. The fluid connector can be used to connect a fluid source and a fluid radiator, and can be used as an interface between the fluid source and various radiators to circulate fluid flow and take away heat, thereby achieving efficient heat dissipation.

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

[0005] The current fluid connector still has some room for optimization in terms of structure, such as the size of the fluid connector. SUMMARY

[0006] Therefore, the first object of the present application is to provide a fluid connector that effectively solves the problem of excessive size of the fluid connector, the second object of the present application is to provide a male structure of a fluid connector, and the third object of the present application is to provide a female structure of a fluid connector.

[0007] In order to achieve the above-mentioned first object, the present application provides the following technical solutions:

[0008] A fluid connector comprises a male structure with a male channel and a female structure with a female channel, the male structure and the female structure are formed with a rotating clamping by a clamping protrusion and a clamping shoulder, characterized in that the female structure is provided with an assembly groove on the interfacing side, the interfacing side of the male structure is provided with an insertion part inserted into the assembly groove along the rotation axis of the clamping protrusion, the end surface of the insertion part is provided with a male interfacing port of the male channel, the bottom of the assembly groove is provided with a female interfacing port of the female channel, the male interfacing port is used to interface with the female interfacing port, at least one of the clamping protrusions is a first clamping protrusion arranged on the edge part of the insertion part, and at least one of the clamping shoulders is a first clamping shoulder arranged on the groove wall of the assembly groove and matched with the first clamping protrusion.

[0009] In use, after the insertion part is inserted into the assembly groove, the first clamping protrusion is located on the side facing the shoulder surface of the first clamping shoulder, then the male structure and the female structure are relatively rotated, mainly the valve seats of the male structure and the female structure are relatively rotated, at this time, the first clamping protrusion and the first clamping shoulder are relatively moved in the circumferential direction to complete the rotating clamping. In the rotating clamping, at least one set of clamping protrusions and clamping shoulders are arranged on the side edge of the insertion part and the groove wall of the assembly groove respectively. Since the first clamping protrusion or the first clamping shoulder is arranged on the edge part of the insertion part and is directly supported by the insertion part without the support of the handle part, and a groove for the handle part to pass through is not required, the circumferential dimension is smaller. In summary, the fluid connector can effectively solve the problem of excessive size of the fluid connector.

[0010] In some technical solutions, the male structure is provided with a male valve and a male pusher, and the female structure is provided with a female valve and a female pusher; during the rotating clamping, the male pusher can push the female valve to move to open and close the female channel in the female structure, and the female pusher can push the male valve to move to open and close the male channel in the male structure.

[0011] In some technical solutions, at least one of the clamping protrusions is a second clamping protrusion arranged on the male pusher, and at least one of the clamping shoulders is a second clamping shoulder arranged on the female structure and matched with the second clamping protrusion.

[0012] And / or, at least one of the clamping protrusions is a third clamping protrusion arranged on the female pusher, and at least one of the clamping shoulders is a third clamping shoulder arranged on the male structure and matched with the third clamping protrusion.

[0013] In some technical solutions, at least two first clamping protrusions are arranged on the insertion part, and the line connecting the two first clamping protrusions and the second clamping protrusion forms an acute angle triangle.

[0014] In some embodiments, the female end structure is provided with a first guide opening for guiding the second clamping protrusion to the second clamping shoulder, and the first guide opening is adjacent to the female end push member; the male end structure is provided with a second guide opening for guiding the third clamping protrusion to the third clamping shoulder, and the second guide opening is adjacent to the male end push member.

[0015] In some embodiments, the male end push member is arranged adjacent to the rotation axis of the first clamping protrusion; the female end push member and the male end push member are arranged at the same position relative to the rotation axis of the first clamping protrusion; the side of the insertion part is provided with an avoidance area for cooperating with the female end push member and a male end avoidance groove, and the groove bottom of the assembly groove is provided with a female end avoidance groove for cooperating with the male end push member.

[0016] In some embodiments, the male end structure comprises a male end valve seat, the male end valve is rotatably arranged in the male end valve seat, and the male end valve seat comprises the insertion part and the male end push member; the female end structure comprises a female end valve seat, the female end valve is rotatably arranged in the female end valve seat, and the female end valve seat comprises the assembly groove and the female end push member.

[0017] In some embodiments, the male end valve seat comprises a male end body and a male end valve cover, the male end valve is arranged between the male end valve cover and the male end body, and the male end body and the male end valve cover are circumferentially positioned and matched by a male end positioning protrusion and a male end positioning groove;

[0018] The female end valve seat comprises a female end body and a female end valve cover, the female end valve is arranged between the female end valve cover and the female end body, and the female end body and the female end valve cover are circumferentially positioned and matched by a female end positioning protrusion and a female end positioning groove.

[0019] In some embodiments, the edge of the male end valve abuts against the male end positioning protrusion; and the edge of the female end valve abuts against the female end positioning protrusion.

[0020] In some embodiments, the male end valve cover has a male end matching groove, the groove wall of the male end matching groove is provided with the male end positioning groove and extends to the end face, the male end valve is matched and installed in the male end matching groove, the male end body has a male end boss in the male end matching groove, and the male end positioning protrusion is axially protruded from the male end boss;

[0021] The female end valve cover has a female end fitting groove, the groove wall of the female end fitting groove is provided with the female end positioning groove and extends to the end face, the female end valve fitting is fitted in the female end fitting groove, the female end body has a female end boss located in the female end fitting groove, and the female end positioning protrusion is axially protruded from the female end boss.

[0022] In some technical solutions, the male end valve has male end installation grooves on both sides for installing sealing rings, and the male end installation grooves are open at the edges of the male end valve.

[0023] The female end valve has female end installation grooves on both sides for installing sealing rings, and the female end installation grooves are open at the edges of the female end valve.

[0024] In some technical solutions, one side of the female end valve cover is provided with the fitting groove, and the other end is provided with the female end fitting groove; the groove wall of the fitting groove is provided with an arc-shaped clamping groove, the side groove wall face of the arc-shaped clamping groove away from the groove bottom of the fitting groove is the first clamping shoulder; the groove wall of the fitting groove is provided with a guide groove for guiding the first clamping protrusion into the arc-shaped clamping groove; and the groove bottom of the fitting groove is provided with the female end avoiding groove which is arc-shaped and penetrates to the female end fitting groove.

[0025] In some technical solutions, one side of the male end valve cover is provided with the insertion part, and the other end is provided with the male end fitting groove, the groove bottom of the male end fitting groove is provided with the male end avoiding groove which is arc-shaped and penetrates to the side with the insertion part, the male end avoiding groove and the insertion part are arranged transversely and side by side, and the side of the insertion part forms the avoiding area to enable the female end pushing piece to extend into the male end avoiding groove.

[0026] In order to achieve the second purpose, the application further provides a male end structure of a fluid connector, which comprises a male end valve seat for interfacing with a female end structure, the male end valve seat has an insertion part for fitting in a fitting groove on the female end structure, the outer side surface of the insertion part is provided with a clamping protrusion which is radially and outwardly protruded, for being rotationally clamped with a corresponding clamping shoulder on the fitting groove; and the interfacing end face of the insertion part has a male end interfacing port for interfacing with a female end interfacing port on the female end structure. That is, the clamping protrusion is arranged on the edge of the insertion part with the interfacing port. Since the fluid connector has the above technical effects, the male end structure of the fluid connector should also have corresponding technical effects.

[0027] In order to achieve the above-mentioned purposes, the application further provides a female end structure of a fluid connector, which comprises a female end valve seat for mating with a male end structure, the female end valve seat has a fitting groove for fitting on an insertion part of the male end structure, a groove wall of the fitting groove has a clamping shoulder facing a groove bottom, for rotating clamping with a corresponding clamping convex on the insertion part; the groove bottom of the fitting groove has a female end mating interface for mating with a male end mating interface on the male end structure. That is, the groove wall of the fitting groove also has a clamping shoulder facing the groove bottom. Since the fluid connector has the above-mentioned technical effects, the female end structure of the fluid connector should also have corresponding technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0028] 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 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 also be obtained by those skilled in the art without creative labor.

[0029] Fig. 1 is a structural schematic diagram of a male end structure provided by an embodiment of the present application;

[0030] Fig. 2 is a structural schematic diagram of a female end structure provided by an embodiment of the present application;

[0031] Fig. 3 is a structural schematic diagram of a fluid connector provided by an embodiment of the present application;

[0032] Fig. 4 is an exploded structural schematic diagram of a male end structure provided by an embodiment of the present application;

[0033] Fig. 5 is an exploded structural schematic diagram of a female end structure provided by an embodiment of the present application;

[0034] Fig. 6 is an exploded structural schematic diagram of a fluid connector provided by an embodiment of the present application;

[0035] Fig. 7 is a mating end structure schematic diagram of a male end structure provided by an embodiment of the present application;

[0036] Fig. 8 is a mating end structure schematic diagram of a female end structure provided by an embodiment of the present application;

[0037] Fig. 9 is a structural schematic diagram of a female end valve provided by an embodiment of the present application;

[0038] Fig. 10 is a cross-sectional structural schematic diagram of a fluid connector provided by an embodiment of the present application;

[0039] Fig. 11 is a regional division schematic diagram of a male end structure provided by an embodiment of the present application;

[0040] Fig. 12 is a regional division schematic diagram of a female end structure provided by an embodiment of the present application.

[0041] The following are marked in the drawings: male end structure 1, female end structure 2, clamping protrusion 3, clamping shoulder 4, male end channel 1-1, insertion part 1-2, male end docking interface 1-3, male end valve 1-4, male end pusher 1-5, second guide opening 1-6, male end avoiding groove 1-7, male end valve seat 1-8, avoiding area 1-9; female end channel 2-1, assembly groove 2-2, female end docking interface 2-3, female end valve 2-4, female end pusher 2-5, first guide opening 2-6, female end avoiding groove 2-7, female end valve seat 2-8, arc-shaped clamping groove 2-9, guide groove 2-10; first clamping protrusion 3-1, second clamping protrusion 3-2, third clamping protrusion 3-3; first clamping shoulder 4-1; male end main body 1-81, male end valve cover 1-82, male end positioning protrusion 1-83, male end boss 1-86; female end main body 2-81, female end valve cover 2-82, female end positioning protrusion 2-83, female end positioning groove 2-84, female end assembly groove 2-85, female end boss 2-86; male end assembly groove 1-41, female end assembly groove 2-41; central area 100, first outer ring area 200, second outer ring area 300, wherein the double-dot dashed line is an auxiliary line to separate the central area, the first outer ring area and the second outer ring area. DETAILED DESCRIPTION

[0042] The fluid connector disclosed by the embodiment of the present application can effectively solve the problem of oversize of the fluid connector.

[0043] 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 a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] Please refer to FIG. 1-FIG. 12, FIG. 1 is a structural schematic diagram of a male end structure provided by the embodiment of the present application; FIG. 2 is a structural schematic diagram of a female end structure provided by the embodiment of the present application; FIG. 3 is a structural schematic diagram of a fluid connector provided by the embodiment of the present application; FIG. 4 is an exploded structural schematic diagram of the male end structure provided by the embodiment of the present application; FIG. 5 is an exploded structural schematic diagram of the female end structure provided by the embodiment of the present application; FIG. 6 is an exploded structural schematic diagram of the fluid connector provided by the embodiment of the present application; FIG. 7 is a docking end structural schematic diagram of the male end structure provided by the embodiment of the present application; FIG. 8 is a docking end structural schematic diagram of the female end structure provided by the embodiment of the present application; FIG. 9 is a structural schematic diagram of a female end valve provided by the embodiment of the present application;

[0045] Fig. 10 is a sectional view of a fluid connector according to an embodiment of the present application; Fig. 11 is a schematic view of a region division of a male structure according to an embodiment of the present application; and Fig. 12 is a schematic view of a region division of a female structure according to an embodiment of the present application.

[0046] In some embodiments, a connector is provided, which includes two connection ends that are interlocked. In order to facilitate the interlocking, the connection end is divided into a central region 100 and a peripheral region on the side to be connected. The central region 100 is circular, and a communication channel is arranged on one side of the axis. The communication channel and the edge of the central region 100 are spaced apart to accommodate a sealing ring. In the peripheral region, two arc-shaped grooves are arranged, and a pushing portion is arranged between the adjacent arc-shaped grooves. The end of the pushing portion is provided with a protrusion protruding radially outward as a clamping protrusion 3. The clamping protrusion 3 of one connection end is matched with the clamping groove of the other connection end. The inner wall of the clamping groove is a clamping shoulder 4, which is matched with the clamping protrusion 3 to form a rotating clamping. Specifically, the clamping groove extends in the circumferential direction, and the starting end is formed with an expansion hole. The pushing portion and the clamping protrusion 3 thereon can pass through the expansion hole, and the clamping protrusion 3 is located at the back side of the clamping groove. At the termination section of the clamping groove, the groove width is matched with the handle portion of the pushing portion, so that after the pushing portion moves to the termination section, the clamping protrusion 3 is matched with the back side of the clamping groove to prevent the two from being separated in the axial direction, thereby achieving axial clamping.

[0047] The connection end of such a connector still has some room for optimization in structure to make the size smaller, such as the radial size.

[0048] In some embodiments, a fluid connector is provided, which includes two connection end structures, such as a male structure 1 and a female structure 2. The side to be connected of the male structure 1 and the female structure 2 is matched by insertion and assembly of the insertion portion 1-2 and the assembly groove 2-2, and the communication channels of the two are matched at the top of the insertion portion 1-2 and the bottom of the assembly groove 2-2. At this time, at least one set of clamping protrusions 3 and clamping shoulders 4 in the rotating clamping can be arranged at the side edge of the insertion portion 1-2 and the groove wall of the assembly groove 2-2, respectively. Since the clamping protrusion 3 or the clamping shoulder 4 is arranged at the edge portion of the insertion portion 1-2 and is directly supported by the insertion portion 1-2, it is not necessary to support it through a handle portion, and it is not necessary to arrange a groove for the handle portion to pass through, which makes the circumferential size smaller.

[0049] In some embodiments, in order to facilitate the illustration of the structural features, the regions are theoretically and not substantially divided according to the dimensional positional relationship, mainly taking the rotation axis of the rotating clamping as the center line, and sequentially and closely dividing the center region 100, the first outer ring region 200 and the second outer ring region 300 in the radial direction. The center region 100 is mainly arranged with the male end channel 1-1 and the female end channel 2-1, and the required region of the adjacent sealing ring, and a small circular structure is formed on this basis. The first outer ring region 200 can be arranged with the first clamping convex 3-1 and the first clamping shoulder 4-1, and the radial width is subject to the contact width requirement between the first clamping convex 3-1 and the first clamping shoulder 4-1. The second outer ring region 300 can be arranged with the entire outer wall portion, and in necessary cases, the entire outer wall portion can not be arranged. It should be noted that in the context, the center region 100, the first outer ring region 200 and the second outer ring region 300 are only used to better understand the positional relationship between some structures of the application, and are not physically separated, but only serve to understand the positional relationship of the structure.

[0050] In some embodiments, because the insertion portion 1-2 and the assembly groove 2-2 are respectively arranged on the male end structure 1 and the female end structure 2, the first clamping convex 3-1 and the first clamping shoulder 4-1 located in the first outer ring region 200 can be supported by the insertion portion 1-2 and the assembly groove 2-2. In turn, it can effectively avoid setting a third outer ring region between the first outer ring region 200 and the center region 100 for placing a connecting handle and a groove structure matched with the connecting handle, and the connecting handle is provided with a clamping convex 3. By forming the insertion portion 1-2 and the assembly groove 2-2 in the center region 100, the first clamping convex 3-1 is directly installed on the radial side of the insertion portion 1-2, and the first clamping shoulder 4-1 is arranged on the groove wall of the assembly groove 2-2, without the need to set a connecting handle, so the above-mentioned third outer ring region can be cancelled.

[0051] In some embodiments, the above-mentioned second outer ring region 300 can not be provided, i.e. the outer wall portion is not required, at this time the first clamping shoulder 4-1 is supported by other physical structures in the second outer ring region 300, because the circumferential distribution area of the first clamping shoulder 4-1 is generally not greater than 180 degrees, so there are still some areas that can be provided with physical structures to support in the axial direction. At this time, the valve can be arranged only in the center region 100. At this time, the male end pusher 1-5 on the male end structure 1 can be arranged only in the center region 100, and / or the female end pusher 2-5 on the female end structure 2 can be arranged only in the center region 100. Of course, in necessary cases, the male end pusher 1-5 and the female end pusher 2-5 can also be arranged in the first outer ring region 200.

[0052] In some embodiments, the second outer ring area 300 can also be provided, and when the second outer ring area 300 is provided, the valve (male valve 1-4 and / or female valve 2-4) can be expanded to the first outer ring area 200 or can still be located only in the central area 100. When expanded to the first outer ring area 200, the male push member 1-5 on the male structure 1 can be provided in the central area 100 and / or the first outer ring area 200, and the female push member 2-5 on the female structure 2 can also be provided in the central area 100 and / or the first outer ring area 200. The provision in the central area 100 and the first outer ring area 200 means that part of it is located in the central area 100 and part of it is located in the first outer ring area 200. Of course, the male push member 1-5 on the male structure 1 and the female push member 2-5 on the female structure 2 can be provided with the clamping protrusion 3, which can be provided in one, more or all of the central area 100, the first outer ring area 200 and the second outer ring area 300. When provided in multiple areas or all areas, it is generally provided across the areas.

[0053] In some embodiments, the male structure 1 is provided with a male channel 1-1, and the female structure 2 is provided with a female channel 2-1. The male structure 1 and the female structure 2 are rotationally clamped by the clamping protrusion 3 and the clamping shoulder 4 to achieve fixation in the docking direction, i.e., axial clamping. At least one clamping protrusion 3 is a first clamping protrusion 3-1 provided on the edge of the insertion portion 1-2, and at least one clamping shoulder 4 is a first clamping shoulder 4-1 provided on the wall of the assembly groove 2-2 to cooperate with the first clamping protrusion 3-1. It should be noted that the male structure 1 and the female structure 2 can be rotationally clamped by one or more sets of clamping protrusions 3 and clamping shoulders 4. The above at least one indicates that when only one set is provided, the clamping protrusion 3 and the clamping shoulder 4 of this set are the first clamping protrusion 3-1 and the first clamping shoulder 4-1, respectively. When multiple sets are provided, one or more sets of clamping protrusions 3 and clamping shoulders 4 can be the first clamping protrusion 3-1 and the first clamping shoulder 4-1, respectively, and the multiple sets can be all or part.

[0054] In some embodiments, the end surface of the insertion part 1-2 has a male end abutting interface 1-3 of the male end channel 1-1, and the bottom of the assembly groove 2-2 is provided with a female end abutting interface 2-3 of the female end channel 2-1, and the male end abutting interface 1-3 is used to abut with the female end abutting interface 2-3; when the top surface of the insertion part 1-2 and the bottom of the assembly groove 2-2 are connected, the female end abutting interface 2-3 and the male end abutting interface 1-3 can be connected, and the male end channel 1-1 and the female end channel 2-1 can be connected. It should be noted that the male end abutting interface 1-3 can be the port of the communication hole on the male end valve 1-4, or the port of the communication channel on the male end valve seat 1-8; correspondingly, the female end abutting interface 2-3 can be the port of the communication hole on the female end valve 2-4, or the port of the communication channel on the female end valve seat 2-8. For example, when the male end valve 1-4 is exposed on the top of the insertion part 1-2, the end of the communication hole of the male end valve 1-4 is the male end abutting interface 1-3; when the male end valve 1-4 is not exposed on the top of the insertion part 1-2, the top of the insertion part 1-2 has a communication channel, and the end of the communication channel is the male end abutting interface 1-3; when the female end valve 2-4 is exposed on the bottom of the assembly groove 2-2, the end of the communication hole of the female end valve 2-4 is the female end abutting interface 2-3; when the female end valve 2-4 is not exposed on the bottom of the assembly groove 2-2, the bottom has a female end channel 2-1, and the end of the female end channel 2-1 is the female end abutting interface 2-3.

[0055] In some embodiments, in general, the male end structure 1 is provided with a male end valve 1-4 which can be moved to open and close the male end channel 1-1 in the male end structure 1; and the female end structure 2 is provided with a female end valve 2-4 which can be moved to open and close the female end channel 2-1 in the female end structure 2. The male end structure 1 is provided with a male end pushing part 1-5 for pushing the female end valve 2-4 to move, and the female end structure 2 is provided with a female end pushing part 2-5 for pushing the male end valve 1-4 to move. The specific position of the pushing part can be set as required.

[0056] In some embodiments, the pushing of the male end pushing part 1-5 and the pushing of the female end pushing part 2-5 can be driven independently, or can be driven in conjunction with the rotation and clamping between the first clamping convex 3-1 and the first clamping shoulder 4-1. That is, during the rotation and clamping, the male end pushing part 1-5 can push the female end valve 2-4 to move to open and close the female end channel 2-1 in the female end structure 2, and the female end pushing part 2-5 can push the male end valve 1-4 to move to open and close the male end channel 1-1 in the male end structure 1.

[0057] It should be noted that the process of rotating and clamping can at least include an axial movement process and a circumferential movement process. In the axial movement process, the process of inserting the insertion part 1-2 into the assembly groove 2-2, and the first clamping convex 3-1 and the first clamping shoulder 4-1 are moved relative to each other to the axial direction to align. In the circumferential movement process, the first clamping convex 3-1 and the first clamping shoulder 4-1 are moved relative to each other around the rotation axis to circumferentially stagger, and to circumferentially overlap, so as to realize axial abutting and limiting. It should be noted that the male end pusher 1-5 pushes the female end valve 2-4 to move to open and close the female end passage 2-1 in the female end structure 2, and the female end pusher 2-5 can push the male end valve 1-4 to move to open and close the male end passage 1-1 in the male end structure 1. The above two can be performed synchronously or asynchronously, and for any of the above, it can occur in the axial movement process or in the circumferential movement process. As shown in the figure, it occurs in the circumferential movement process.

[0058] In some embodiments, the process of rotating and clamping can be as follows: after the insertion part 1-2 is inserted into the assembly groove 2-2, the first clamping convex 3-1 is located on the side facing the shoulder surface of the first clamping shoulder 4-1, and then the male end structure 1 and the female end structure 2 are relatively rotated, mainly the valve seats of each other are relatively rotated, at this time the first clamping convex 3-1 and the first clamping shoulder 4-1 are relatively moved in the circumferential direction. After the insertion part 1-2 is inserted into the assembly groove 2-2, it can be limited by the top of the insertion part 1-2 and the groove bottom of the assembly groove 2-2 to prevent further movement, or it can be limited by other structures simultaneously or individually. With the female end valve seat 2-8 of the female end structure 2 as a static reference, the corresponding male end pusher 1-5 moves synchronously with the first clamping convex 3-1, and the male end pusher 1-5 pushes the female end valve 2-4, which generally pushes the female end valve 2-4 to move in the opening direction until the female end valve 2-4 is completely opened, at this time the first clamping convex 3-1 and the first clamping shoulder 4-1 have also completed the rotating and clamping; and with the male end valve seat 1-8 of the male end structure 1 as a static reference, the corresponding first clamping shoulder 4-1 and female end pusher 2-5 move synchronously, and the female end pusher 2-5 pushes the male end valve 1-4, which generally pushes the male end valve 1-4 to move in the opening direction until the male end valve 1-4 is completely opened, at this time the first clamping convex 3-1 and the first clamping shoulder 4-1 have also completed the rotating and clamping.

[0059] In some embodiments, the male pusher 1-5 can be provided with a second clamping protrusion 3-2 to achieve rotational clamping with the corresponding second clamping shoulder 4 on the female valve seat 2-8 while pushing the female valve 2-4, wherein the second clamping protrusion 3-2 can be radially outwardly protruding, or radially protruding towards the axis, i.e. radially inwardly protruding; similarly, the female pusher 2-5 can be provided with a third clamping protrusion 3-3 to achieve rotational clamping with the corresponding second clamping shoulder 4 on the male valve seat 1-8 while pushing the male valve 1-4, wherein the third clamping protrusion 3-3 can be radially outwardly protruding, or radially protruding towards the axis. By achieving rotational clamping of both the male pusher 1-5 and the female pusher 2-5, the rotational clamping between the first clamping protrusion 3-1 and the first clamping shoulder 4-1 can be matched, so that the axial force can be more evenly distributed to ensure the axial clamping effect.

[0060] In some embodiments, the male pusher 1-5 and the female pusher 2-5 are both rotating, while the male valve 1-4 and the female valve 2-4 are not strictly required to be rotating relative to each other between the valve seats, i.e. even if they are rotating, the rotation axis can coincide, be parallel or perpendicular to the rotation axis of the first clamping protrusion 3-1. In the coinciding position relationship, the pusher and the corresponding valve directly cooperate, such as the pusher being directly inserted into the push groove of the valve to be directly pushed; while for other position relationships, transmission structure can be used for transmission to achieve transmission connection.

[0061] In some embodiments, regarding the arrangement of the male pusher 1-5 and the female pusher 2-5, more specifically, the male pusher 1-5 can be arranged on the first clamping protrusion 3-1, and the circumferential direction of the male pusher 1-5 can coincide with or be offset from the circumferential direction of the first clamping protrusion 3-1. The offset should not be too large, otherwise interference may occur. The male pusher 1-5 can be arranged on the first clamping protrusion 3-1, and the distance between the male pusher 1-5 and the rotation axis of the first clamping protrusion 3-1 is equal to the distance between the first clamping protrusion 3-1 and the rotation axis of the first clamping protrusion 3-1. The female pusher 2-5 can be arranged at the position corresponding to the first clamping shoulder 4-1 and located at the butt joint end face. If the female valve seat 2-8 has a blocking portion, the side surface of the blocking portion close to the bottom of the assembly groove 2-2 is the first clamping shoulder 4-1, and the side surface of the blocking portion away from the bottom of the assembly groove 2-2 is provided with the female pusher 2-5. At this time, the distance between the female pusher 2-5 and the rotation axis of the first clamping protrusion 3-1 is equal to the distance between the first clamping shoulder 4-1 and the rotation axis of the first clamping protrusion 3-1. It should be noted that the first clamping shoulder 4-1 cooperates with the first clamping protrusion 3-1, and generally a plurality of sets of the first clamping shoulder 4-1 and the first clamping protrusion 3-1 are arranged. The first clamping shoulder 4-1 and the first clamping protrusion 3-1 of different sets can be located on different circumferences. For the same set of first clamping shoulder 4-1 and first clamping protrusion 3-1, the distance between the first clamping protrusion 3-1 and the rotation axis of the first clamping protrusion 3-1 should be equal to the distance between the first clamping shoulder 4-1 and the rotation axis of the first clamping protrusion 3-1, so as to ensure the rotation clamping between the first clamping protrusion 3-1 and the first clamping shoulder 4-1. In the context of the specific implementation, unless otherwise specified, each set of first clamping shoulder 4-1 and first clamping protrusion 3-1 can be considered to be arranged on the same circumference, so as to better reduce the radial dimension.

[0062] In some embodiments, the male pusher 1-5 and the female pusher 2-5 can also be arranged in the circular area surrounded by the outer circumference of the insertion portion 1-2. For example, the distance between the male pusher 1-5 and the rotation axis of the first clamping protrusion 3-1 is less than the distance between the first clamping protrusion 3-1 and the rotation axis of the first clamping protrusion 3-1. Correspondingly, the relative positions of the female pusher 2-5 and the male pusher 1-5 with respect to the rotation axis of the first clamping protrusion 3-1 are equal, that is, the female pusher 2-5 and the male pusher 1-5 are on the same circumference. Not only can the avoidance be achieved, but also the first clamping protrusion 3-1 can be arranged on the same circumference on the male pusher 1-5 and the female pusher 2-5 to achieve clamping, so as to better achieve clamping.

[0063] As described above, in order to better realize the setting of the pusher, specifically, an avoiding area 1-9 can be formed on one side of the insertion part 1-2 to avoid the female end pusher 2-5, so as to facilitate the movement of the female end pusher 2-5 relative to the male end valve seat 1-8. At the same time, a male end avoiding groove 1-7 is arranged at the avoiding area 1-9, so that the female end pusher 2-5 can extend into the male end valve 1-4 to push the male end valve 1-4 to open and close. Correspondingly, the bottom of the assembly groove 2-2 is provided with a female end avoiding groove 2-7 for the male end pusher 1-5 to pass through, so as to extend into the female end valve 2-4 to push the female end valve 2-4 to open and close. It should be noted that when the second clamping protrusion 3-2 and the third clamping protrusion 3-3 are arranged, one end of the avoiding area 1-9 is provided with a second guide opening 1-6 matched with the third clamping protrusion 3-3. Correspondingly, one end of the female end avoiding groove 2-7 is provided with a first guide opening 2-6 matched with the second clamping protrusion 3-2.

[0064] In some embodiments, the male end structure 1 includes a male end valve seat 1-8, and the male end valve 1-4 is rotatably arranged in the male end valve seat 1-8. The male end valve seat 1-8 includes the insertion part 1-2 and the male end pusher 1-5. The female end structure 2 includes a female end valve seat 2-8, and the female end valve 2-4 is rotatably arranged in the female end valve seat 2-8. The female end valve seat 2-8 includes the assembly groove 2-2 and the female end pusher 2-5.

[0065] In some embodiments, generally, the male end valve seat 1-8 of the male end structure 1 is composed of at least two structures to facilitate the installation of the male end valve 1-4. For example, the male end valve seat 1-8 includes a male end body 1-81 and a male end valve cover 1-82. The male end valve 1-4 is arranged between the male end body 1-81 and the male end valve cover 1-82. The male end body 1-81 is fixedly connected with the male end valve seat 1-8, for example, by press riveting, welding, screw connection, etc. In order to ensure the fixed connection between the male end body 1-81 and the male end valve seat 1-8, the outer radius of the male end valve 1-4 can be less than the distance between the radial outer edge of the first clamping protrusion 3-1 and the rotation axis thereof. For example, the outer radius of the male end valve 1-4 can be equal to the radius of the circumscribed circle of the outer periphery of the insertion part 1-2. For another example, the outer radius of the male end valve 1-4 can be equal to the distance between the radial outer edge of the first clamping protrusion 3-1 and the rotation axis thereof.

[0066] Correspondingly, the female end valve seat 2-8 at least comprises a female end body 2-81 and a female end valve cover 2-82, wherein the female end valve 2-4 is arranged between the female end body 2-81 and the female end valve cover 2-82, and the female end body 2-81 and the female end valve seat 2-8 are fixedly connected, such as press riveting, welding, screw connection, etc. In order to ensure the fixed connection between the female end body 2-81 and the female end valve seat 2-8, the outer radius of the female end valve 2-4 can be made not greater than the distance between the first clamping shoulder 4-1 and the rotation axis thereof, such as can be arranged in the central region 100, such as can be equal to the radius of the circumscribed circle of the outer periphery of the insertion part 1-2; or such as the outer radius of the female end valve 2-4 is equal to the distance between the first clamping convex 3-1 and the rotation axis thereof.

[0067] Generally, the male end valve 1-4 and the female end valve 2-4 also need to be provided with a mounting groove for mounting a corresponding sealing ring. The mounting groove is in the edge portion of the valve, and the groove wall can be omitted to expose the side edge of the sealing ring, but in use, since the exposed part is not much, it does not affect the use. Of course, the above-mentioned mounting groove can also be arranged on the valve seat, such as can be arranged on the body and the cover of the valve seat; of course, the mounting groove can also be arranged on the valve seat and the valve, so that part of the sealing ring is embedded in the mounting groove of the valve, and the other part is embedded in the mounting groove of the valve seat.

[0068] In some embodiments, for the valve seat, the positional relationship between the body and the cover needs to be circumferentially aligned, so that the communication hole on the valve can be aligned with the communication channel on the valve body in the later stage. In order to better position, it is preferred that the valve body and the cover are inserted and matched in the rotation axis direction of the first clamping convex 3-1 through the positioning convex and the matching positioning groove, so as to realize positioning. A set of matching positioning convex and positioning groove are arranged on the body and the cover respectively. When a plurality of positioning convex are arranged, they can be arranged on the body or the cover, or the positioning convex can be arranged on the body and the cover, and the positioning groove is correspondingly arranged. As described in the drawings, the edge of the body is uniformly provided with four positioning convex in the circumferential direction, and the cover is correspondingly provided with four positioning grooves. It is preferred that the distance between the inner side of the positioning convex and the rotation axis of the first clamping convex 3-1 is equal to the radius of the valve.

[0069] Specifically, the male end body 1-81 and the male end cover 1-82 are circumferentially positioned and matched through the male end positioning convex 1-83 and the male end positioning groove, and the female end body 2-81 and the female end cover 2-82 are circumferentially positioned and matched through the female end positioning convex 2-83 and the female end positioning groove 2-84.

[0070] In some embodiments, the edge of the male end valve 1-4 can be in abutment with the male end positioning convex 1-83; wherein the edge of the valve is in abutment with the female end positioning convex 2-83.

[0071] In some embodiments, the valve cover has a mating groove on the side facing the main body for receiving the valve, and the main body has a protrusion on the side facing the valve cover, which is arranged in the mating groove to jointly hold the valve with the bottom of the mating groove. The edge of the protrusion is provided with the positioning protrusion, such as four positioning protrusions uniformly arranged. For the female end valve seat 2-8, the female end mating groove 2-85 and the assembly groove 2-2 are coaxially arranged, and preferably have the same diameter, such as being arranged in the central region 100.

[0072] In some embodiments, the male end valve cover 1-82 has a male end mating groove, the groove wall of which is provided with a male end positioning recess extending to the end face, the male end valve 1-4 is fitted in the male end mating groove, the male end main body 1-81 has a male end protrusion 1-86 located in the male end mating groove, and the male end positioning protrusion 1-83 protrudes axially from the male end protrusion 1-86.

[0073] And / or, the female end valve cover 2-82 has a female end mating groove 2-85, the groove wall of which is provided with a female end positioning recess 2-84 extending to the end face, and the female end valve 2-4 is fitted in the female end mating groove 2-85, the female end main body 2-81 has a female end protrusion 2-86 located in the female end mating groove 2-85, and the female end positioning protrusion 2-83 protrudes axially from the female end protrusion 2-86.

[0074] In some embodiments, the male end valve cover 1-82 and the male end main body 1-81 can be fixed by welding, or by interference fit before the male end positioning recess and the male end protrusion, or by interference fit between the male end protrusion 1-86 and the male end mating groove.

[0075] And / or, the female end valve cover 2-82 and the female end main body 2-81 can be fixed by welding, or by interference fit before the female end positioning recess 2-84 and the female end protrusion, or by interference fit between the female end protrusion 2-86 and the female end mating groove 2-85.

[0076] In some embodiments, the female end valve cover 2-82 has an assembly groove 2-2 on one side and a female end mating groove 2-85 on the other side; the groove wall of the assembly groove 2-2 is provided with an arc-shaped clamping groove 2-9, the side groove wall surface of the arc-shaped clamping groove 2-9 away from the groove bottom of the assembly groove 2-2 is a first clamping shoulder 4-1; the groove wall of the assembly groove 2-2 is provided with a guide groove 2-10 for guiding the first clamping protrusion 3-1 into the arc-shaped clamping groove 2-9; the groove bottom of the assembly groove 2-2 has a female end avoiding groove 2-7 extending through the female end mating groove 2-85 and being arc-shaped.

[0077] And / or, one side of the male valve cover 1-82 has the insertion part 1-2, and the other end has a male mating groove, and the groove bottom of the male mating groove is provided with an arc-shaped and through male avoiding groove 1-7 to the side with the insertion part 1-2, and the male avoiding groove 1-7 and the insertion part 1-2 are arranged transversely and side by side, and one side of the insertion part 1-2 forms an avoiding area 1-9, so that the female pushing piece 2-5 can extend into the male avoiding groove 1-7.

[0078] In some embodiments, in general, the seal between the valve and the valve seat can also be an 8-shaped sealing ring in addition to the sealing gasket, and the corresponding assembly groove 2-2 is preferably 8-shaped, one of which is coaxially arranged on the communication hole on the valve, and when the valve is rotated to close, the communication hole and the communication channel on the valve are arranged staggered, and at this time the communication channel and the other ring of the sealing ring are coaxially arranged. When the valve is rotated, the communication hole and the communication channel should be staggered to coincide within the outermost ring of the sealing ring to ensure that they are always sealed relative to each other. Correspondingly, a sealing ring can also be used between the two valve seats, i.e. between the end of the insertion part 1-2 and the groove bottom of the assembly groove 2-2, such as the same structure as the sealing ring on the valve.

[0079] In some embodiments, the two sides of the male valve 1-4 can be provided with a male mounting groove 1-41 for mounting a sealing ring, and the male mounting groove 1-41 is open at the edge of the male valve 1-4. The two sides of the female valve 2-4 can be provided with a female mounting groove 2-41 for mounting a sealing ring, and the female mounting groove 2-41 is open at the edge of the female valve 2-4. By opening the mounting groove of the sealing ring at the edge of the valve, i.e. without a groove wall, an open state is formed, so that when the outer diameter of the valve is limited, a larger cross-section sealing ring can be installed to achieve better sealing effect. The corresponding sealing ring can include an outer arc segment, which is preferably coaxially arranged with the rotation axis of the rotating clamping, and at this time the outer side groove wall of the groove segment matched with the mounting groove is missing to be open. Specifically, the sealing ring can include an outer arc segment and an inner arc segment, which are coaxially arranged, and the two ends of the outer arc segment and the inner arc segment are connected by a semicircular arc, one of which is a first circular arc segment coaxially arranged with the communication hole on the valve, and the other is a second circular arc segment coaxially arranged with the communication channel on the valve seat when the valve is closed. In order to have better communication effect when the valve is opened, it is preferred to further include an intermediate circular arc segment combined with the first circular arc segment to form a circular sealing segment. The circular sealing segment is coaxially arranged with the communication hole on the valve.

[0080] In some embodiments, the first card protrusion 3-1 and the first card shoulder 4-1 are connected by clamping, and the structures of the first card protrusion 3-1 and the first card shoulder 4-1 can be the same or different, which can be set as needed. For example, both are protruding structures, and the first card shoulder 4-1 and the first card protrusion 3-1 are circumferentially staggered, and the first card shoulder 4-1 and the first card protrusion 3-1 can be axially moved relative to each other, so that the first card protrusion 3-1 is located on the side facing the first card shoulder 4-1, that is, the side close to the groove bottom, and then is rotated to axially align the first card shoulder 4-1 and the first card protrusion 3-1, so as to axially abut and prevent reverse movement.

[0081] In some embodiments, for convenience, an arc-shaped clamping groove 2-9 can be formed at the first card protrusion 3-1 or the first card shoulder 4-1. For example, as shown in the drawings, the edge of the insertion part 1-2 is provided with the first card protrusion 3-1 in the form of a tooth or a block, and the groove wall of the assembly groove 2-2 is provided with the arc-shaped clamping groove 2-9, and the side groove wall of the arc-shaped clamping groove 2-9 close to the slot of the assembly groove 2-2 is the first card shoulder 4-1, and the end of the arc-shaped clamping groove 2-9 has a guide groove 2-10 for matching the first card protrusion 3-1, which is generally matched with the first card protrusion 3-1, so that when the insertion part 1-2 is inserted into the assembly groove 2-2, the first card protrusion 3-1 is located at the slot of the assembly groove 2-2 and aligns with the guide groove 2-10, and as the insertion part 1-2 enters the assembly groove 2-2, the first card protrusion 3-1 enters the guide groove 2-10 until the axial direction is aligned with the arc-shaped clamping groove 2-9, and then the insertion part 1-2 is rotated to drive the first card protrusion 3-1 into the arc-shaped clamping groove 2-9, and as the clamping is in place, the valve is fully opened, and the male end connector 1-3 and the female end connector 2-3 are connected, which are generally directly or indirectly abutted through a sealing ring. It should be noted that one or more first card protrusions 3-1 can be provided, such as two, three or more first card protrusions 3-1.

[0082] In some embodiments, at least two first card protrusions 3-1 are preferably provided, and if the male end pusher 1-5 is provided with a second card protrusion 3-2, the second card protrusion 3-2 and the two first card protrusions 3-1 form an acute angle triangle, so that the axial distribution angle is not less than 180 degrees, to ensure uniform axial stress. Especially when the two first card protrusions 3-1 and the second protrusion are located on the same circumference, the insertion part 1-2 is provided with at least two first card protrusions 3-1, and the second card protrusion 3-2 and the two first card protrusions 3-1 form an acute angle triangle, which has better distribution effect.

[0083] In some embodiments, when the male end structure 1 and the female end structure 2 are connected, and the valve is in the open state, the female end pusher 2-5, the male end pusher 1-5, and the two first clamping protrusions 3-1 are distributed in a circumferential direction to form a four-point force in a uniform manner. In order to achieve better uniform distribution, the first guide hole 2-6 for the second clamping protrusion 3-2 of the male end pusher 1-5 to be inserted is preferably arranged adjacent to the corresponding female end pusher 2-5 on the female end valve seat 2-8, and the second guide hole 1-6 for the second clamping protrusion 3-2 of the female end pusher 2-5 to be inserted is preferably arranged adjacent to the corresponding male end pusher 1-5 on the male end valve seat 1-8, so that the distribution is more dispersed.

[0084] In some embodiments, in order to facilitate the dispersion, the male end valve 1-4 and the female end valve 2-4 are preferably rotated by a preset angle to achieve opening. The preset angle is 70 degrees to 90 degrees, and is preferably 80 degrees. That is, after rotating by the preset angle from the initial position of the connection, the male end structure 1 and the female end structure 2 not only complete clamping, but also the corresponding male end valve 1-4 and the female end valve 2-4 are opened. Of course, the preset angle can also be greater than 90 degrees, or less than 70 degrees, such as 50 degrees or 180 degrees.

[0085] In some embodiments, the included angle between the second clamping protrusion 3-2 and the third clamping protrusion 3-3 relative to the rotation axis is 90 degrees to 100 degrees, and the included angle between the two first clamping protrusions 3-1 relative to the rotation axis is 125 degrees to 135 degrees, such as 130 degrees to 132 degrees, so as to ensure that the first clamping protrusion 3-1 has sufficient span in the circumferential direction. It should be noted that, in order to facilitate understanding and description, the included angle between the two structures relative to the rotation axis is simplified as the included angle between the two structures in some descriptions. The included angle between the second clamping protrusion 3-2 and the first clamping protrusion 3-1 relative to the rotation axis is directly described as the included angle between the second clamping protrusion 3-2 and the first clamping protrusion 3-1. The included angle between the second clamping protrusion 3-2 and the nearest first clamping protrusion 3-1 can be 62 degrees to 72 degrees, such as 66 degrees to 69 degrees. The included angle between the third clamping shoulder 4 on the male end structure 1 matched with the third clamping protrusion 3-3 and the nearest first clamping protrusion 3-1 can be 62 degrees to 72 degrees, such as 66 degrees to 69 degrees. Specifically, the included angle between the second clamping protrusion 3-2 and the nearest first clamping protrusion 3-1 and the included angle between the third clamping shoulder 4 and the nearest first clamping protrusion 3-1 can be equal, so that when the male end structure 1 and the female end structure 2 are connected to enter the open state, the second clamping protrusion 3-2, the third clamping protrusion 3-3, and the two first clamping protrusions 3-1 are distributed in an isosceles trapezoidal manner.

[0086] In some embodiments, considering the size limitation, the angle between the circumferential direction of the first protrusion 3-1 and the rotation axis is preferably between 28 degrees and 36 degrees, specifically between 30 degrees and 34 degrees. Considering the space occupied by the pushing member, the included angle between the second protrusion 3-2 and the third protrusion 3-3 is preferably between 10 degrees and 18 degrees, specifically between 12 degrees and 15 degrees.

[0087] In some embodiments, the circumferential width of the second protrusion 3-2 is not less than one third of the circumferential width of the first protrusion 3-1 or not more than two thirds of the circumferential width of the second protrusion 3-2, so as to ensure that the first protrusion 3-1 has sufficient size space to ensure the strength of the first protrusion 3-1.

[0088] In some embodiments, an arc-shaped groove is preferably arranged at the bottom of the fitting groove, and the arc-shaped groove is arranged in the axial direction, so that the pushing member can enter the arc-shaped groove, and the pushing member can move along the arc-shaped groove to push the internal valve to rotate. One end of the corresponding arc-shaped groove is enlarged to form a guide opening to facilitate the entry of the second protrusion 3-2. Specifically, the second protrusion 3-2 can abut against the bottom of the fitting groove, so that the bottom of the fitting groove serves as the second shoulder 4 to achieve clamping. It should be noted that when the diameter of the fitting groove is equal to the diameter of the assembly groove 2-2, an arc-shaped groove cavity is arranged at the bottom of the fitting groove for the movement of the second protrusion 3-2.

[0089] In some embodiments, such as the male valve cover 1-82, the insertion portion 1-2 is arranged on the butt joint side, the insertion portion 1-2 is protrudingly arranged, the edge of one side of the insertion portion 1-2 is in an arc shape, and is coaxially arranged with the rotation axis of the first protrusion 3-1, and the two first protrusions 3-1 are arranged at the two ends of the arc-shaped edge, and the other side of the insertion portion 1-2 is arranged close to the rotation axis of the first protrusion 3-1 to leave a part of space to avoid the female pushing member 2-5, and the top surface area of the insertion portion 1-2 should be not less than the area required for the butt joint of the two butt joints, that is, when the male butt joint 1-3 and the female butt joint 2-3 are rotated and offset, the female butt joint 2-3 still needs to abut against the top surface of the insertion portion 1-2, so as to at least install the above-mentioned 8-shaped sealing ring.

[0090] The male valve cover 1-82 includes a male cover part and a plug part 1-2, wherein the plug part 1-2 is provided on the male cover part in the form of a boss. The outer edge of the male cover part can extend to the second outer ring area 300, or can be located within the first outer ring area 200. Since the plug part 1-2 is relieved on one side, the male cover part is provided with a male arc-shaped groove, which is configured to cooperate with the female pushing element 2-5 to enter the male valve 1-4, and the end of the male arc-shaped groove close to the male pushing element 1-5 has a male guide opening, which is arranged to correspond to the third clamping protrusion 3-3 and can be located within the central area 100 or the first outer ring area 200. The side of the male cover part away from the plug part 1-2 has a male matching groove to accommodate the male valve 1-4. The male pushing element 1-5 is fixed on the plug part 1-2.

[0091] The female valve cover 2-82 includes a female cover part and an assembly part, and the outer walls of the two parts are coaxial and fitted. The assembly part is provided with an assembly groove 2-2, and the assembly groove 2-2 is provided with a female arc-shaped groove to cooperate with the male pushing element 1-5 to enter the male valve 1-4, and the end of the female arc-shaped groove close to the female pushing element 2-5 has a female guide opening, which is arranged to correspond to the second clamping protrusion 3-2 and can be located within the central area 100 or the first outer ring area 200. The side of the female cover part away from the assembly part has a female matching groove 2-85 to accommodate the female valve 2-4. The groove bottom of the assembly groove 2-2 is not only provided with a female butt joint 2-3, but also preferably provided with a mounting groove for a sealing ring. The female pushing element 2-5 is connected to the groove bottom of the assembly groove 2-2, and preferably forms a connection with the groove wall of the assembly groove 2-2.

[0092] In some embodiments, a locking pin is also provided to lock after the male structure 1 and the female structure 2 are connected, to prevent relative movement and avoid disconnection. The locking pin generally slides with one of the structures and is inserted into the other structure, and since it is eccentric, it can prevent rotation. In the connected state, the locking pin can directly lock the male valve seat 1-8 and the female valve seat 2-8, or can only directly prevent one of the valve seats and its valve.

[0093] Based on the fluid connector provided in the above embodiments, the application further provides a female end structure of a fluid connector, which is the female end structure of any one of the fluid connectors in the above embodiments, and specifically comprises a female end valve seat for interfacing with a male end structure, the female end valve seat has a fitting groove for fitting with an insertion portion of the male end structure, the outer side surface of the insertion portion is provided with a clamping protrusion protruding radially outward, for being rotatably clamped with a corresponding clamping shoulder on the fitting groove; and the interfacing end surface of the insertion portion has a female end interfacing port for interfacing with a male end interfacing port on the male end structure. That is, the clamping protrusion is also arranged on the edge of the insertion portion with the interfacing port. Since the female end structure adopts the clamping protrusion arranged on the edge of the insertion portion with the interfacing port in the above embodiments, the beneficial effects of the female end structure refer to the above embodiments.

[0094] Based on the fluid connector provided in the above embodiments, the application further provides a female end structure of a fluid connector, which is the female end structure of any one of the fluid connectors in the above embodiments, and specifically comprises a female end valve seat for interfacing with a male end structure, the female end valve seat has a fitting groove for fitting with an insertion portion of the male end structure, the outer side surface of the insertion portion is provided with a clamping protrusion protruding radially outward, for being rotatably clamped with a corresponding clamping shoulder on the fitting groove; and the interfacing end surface of the insertion portion has a female end interfacing port for interfacing with a male end interfacing port on the male end structure. That is, the clamping protrusion is also arranged on the edge of the insertion portion with the interfacing port. Since the female end structure adopts the clamping protrusion arranged on the edge of the insertion portion with the interfacing port in the above embodiments, the beneficial effects of the female end structure refer to the above embodiments.

[0095] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0096] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the application. Various modifications to the 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 the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fluid connector, characterized by, The male end structure (1) and the female end structure (2) are formed into a rotating clamping by a clamping protrusion (3) and a clamping shoulder (4), the female end structure (2) has a fitting groove (2-2) on the side for connection, and the male end structure (1) has an insertion part (1-2) on the side for connection for insertion into the fitting groove (2-2) along the axis of rotation of the clamping protrusion (3); the end surface of the insertion part (1-2) has a male end connection interface (1-3) of the male end channel (1-1), and the bottom of the fitting groove (2-2) is provided with a female end connection interface (2-3) of the female end channel (2-1), the male end connection interface (1-3) is used to connect with the female end connection interface (2-3); at least one of the clamping protrusions (3) is a first clamping protrusion (3-1) arranged on the edge of the insertion part (1-2), and at least one of the clamping shoulders (4) is a first clamping shoulder (4-1) arranged on the wall of the fitting groove (2-2) to cooperate with the first clamping protrusion (3-1).

2. The fluid connector of claim 1, wherein, The male end structure (1) is provided with a male end valve (1-4) and a male end pusher (1-5), and the female end structure (2) is provided with a female end valve (2-4) and a female end pusher (2-5); during the rotating clamping, the male end pusher (1-5) can push the female end valve (2-4) to open and close the female end channel (2-1) in the female end structure (2), and the female end pusher (2-5) can push the male end valve (1-4) to open and close the male end channel (1-1) in the male end structure (1).

3. The fluid connector of claim 2, wherein, At least one of the clamping protrusions (3) is a second clamping protrusion (3-2) arranged on the male end pusher (1-5), and at least one of the clamping shoulders (4) is a second clamping shoulder arranged on the female end structure (2) to cooperate with the second clamping protrusion (3-2); And / or, at least one of the clamping protrusions (3) is a third clamping protrusion (3-3) arranged on the female end pusher (2-5), and at least one of the clamping shoulders (4) is a third clamping shoulder arranged on the male end structure (1) to cooperate with the third clamping protrusion (3-3).

4. The fluid connector of claim 3, wherein, At least two first clamping protrusions (3-1) are arranged on the insertion part (1-2), and the line connecting the two first clamping protrusions (3-1) and the second clamping protrusion (3-2) forms an acute angle triangle.

5. The fluid connector of claim 3, wherein, The female end structure (2) is provided with a first guide opening (2-6) for guiding the second clamping protrusion (3-2) to move to the second clamping shoulder, and the first guide opening (2-6) is arranged adjacent to the female end pusher (2-5); the male end structure (1) is provided with a second guide opening (1-6) for guiding the third clamping protrusion (3-3) to move to the third clamping shoulder, and the second guide opening (1-6) is arranged adjacent to the male end pusher (1-5).

6. The fluid connector of claim 3, wherein, The male end pushing piece (1-5) is arranged close to the rotation axis of the first clamping convex (3-1) compared with the first clamping convex (3-1); the male end pushing piece (1-5) and the female end pushing piece (2-5) are equal in position relative to the rotation axis of the first clamping convex (3-1); the side edge of the insertion part (1-2) is provided with an avoiding area (1-9) and a male end avoiding groove (1-7) for cooperating with the movement of the female end pushing piece (2-5), and the groove bottom of the assembly groove (2-2) is provided with a female end avoiding groove (2-7) for cooperating with the movement of the male end pushing piece (1-5).

7. The fluid connector of claim 6, wherein, The male end structure (1) comprises a male end valve seat (1-8), the male end valve (1-4) is rotatably arranged in the male end valve seat (1-8), and the male end valve seat (1-8) comprises the insertion part (1-2) and the male end pushing piece (1-5); the female end structure (2) comprises a female end valve seat (2-8), the female end valve (2-4) is rotatably arranged in the female end valve seat (2-8), and the female end valve seat (2-8) comprises the assembly groove (2-2) and the female end pushing piece (2-5).

8. The fluid connector of claim 7, wherein, The male end valve seat (1-8) comprises a male end body (1-81) and a male end valve cover (1-82), the male end valve (1-4) is arranged between the male end valve cover (1-82) and the male end body (1-81), and the male end body (1-81) and the male end valve cover (1-82) are circumferentially positioned and matched by a male end positioning convex (1-83) and a male end positioning groove. The female end valve seat (2-8) comprises a female end body (2-81) and a female end valve cover (2-82), the female end valve (2-4) is arranged between the female end valve cover (2-82) and the female end body (2-81), and the female end body (2-81) and the female end valve cover (2-82) are circumferentially positioned and matched by a female end positioning convex (2-83) and a female end positioning groove (2-84).

9. The fluid connector of claim 8, wherein, The edge of the male end valve (1-4) abuts against the male end positioning convex (1-83), and the edge of the female end valve (2-4) abuts against the female end positioning convex (2-83).

10. The fluid connector of claim 9, wherein, The male end valve cover (1-82) has a male end matching groove, the groove wall of the male end matching groove is provided with the male end positioning groove and extends to the end face, the male end valve (1-4) is matched and installed in the male end matching groove, the male end body has a male end boss (1-86) located in the male end matching groove, and the male end positioning convex (1-83) is axially arranged outside the male end boss (1-86). The female end valve cover (2-82) has a female end fitting groove (2-85), the groove wall of the female end fitting groove (2-85) opens the female end positioning groove (2-84) and extends to the end face, the female end valve (2-4) is fitted and installed in the female end fitting groove (2-85), the female end body (2-81) has a female end boss (2-86) located in the female end fitting groove (2-85), and the female end positioning protrusion (2-83) protrudes axially from the female end boss (2-86).

11. The fluid connector of claim 10, wherein, The male end valve (1-4) has a male end installation groove (1-41) for installing a sealing ring on both sides of the male end valve (1-4), and the male end installation groove (1-41) is arranged open at the edge of the male end valve (1-4). The female end valve (2-4) has a female end installation groove (2-41) for installing a sealing ring on both sides of the female end valve (2-4), and the female end installation groove (2-41) is arranged open at the edge of the female end valve (2-4).

12. The fluid connector of claim 11, wherein, One side of the female end valve cover (2-82) has the fitting groove (2-2), and the other end is provided with the female end fitting groove (2-85); the groove wall of the fitting groove (2-2) is provided with an arc-shaped clamping groove (2-9), one side groove wall surface of the arc-shaped clamping groove (2-9) away from the groove bottom of the fitting groove (2-2) is the first clamping shoulder (4-1); the groove wall of the fitting groove (2-2) is provided with a guide groove (2-10) for guiding the first clamping protrusion (3-1) into the arc-shaped clamping groove (2-9); the groove bottom of the fitting groove (2-2) has the female end avoiding groove (2-7) which penetrates to the female end fitting groove (2-85) and is arc-shaped.

13. The fluid connector of claim 12, wherein, One side of the male end valve cover (1-82) has the insertion part (1-2), and the other end has the male end fitting groove, the groove bottom of the male end fitting groove is provided with the male end avoiding groove (1-7) which is arc-shaped and penetrates to one side of the male end valve cover (1-82) having the insertion part (1-2), the male end avoiding groove (1-7) and the insertion part (1-2) are arranged transversely side by side, one side of the insertion part (1-2) forms the avoiding area (1-9), so that the female end pushing piece (1-5) can extend into the male end avoiding groove (1-7).

14. A male structure of a fluid connector, characterized by, The male end valve seat (1-8) for interfacing with the female end structure (2) has an insertion part (1-2) for fitting in the fitting groove (2-2) on the female end structure (2), the outer side surface of the insertion part (1-2) is provided with a clamping protrusion (3) which protrudes radially outward, for rotating clamping with the corresponding clamping shoulder (4) on the fitting groove (2-2); the interfacing end face of the insertion part (1-2) has a male end interfacing surface (1-3) for interfacing with the female end interfacing surface (2-3) on the female end structure (2).

15. A female end structure of a fluid connector, characterized by, The utility model relates to a valve seat (2-8) for mating with a male structure (1), the valve seat (2-8) has a fitting groove for fitting on the insertion part (1-2) of the male structure (1), the groove wall of the fitting groove (2-2) has a clamping shoulder (4) facing the groove bottom for rotating clamping with the corresponding clamping convex (3) on the insertion part (1-2), and the groove bottom of the fitting groove (2-2) has a female end docking interface (2-3) for docking with the male end docking interface (1-3) on the male structure (1).

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