Fluid connector

Abstract

A fluid connector, comprising at least two valve seats (2) having communication channels (21), and valve cores (3) rotationally arranged on opposite sides of the valve seats and configured to open and close the communication channels, wherein positioning slots (34) are provided on one valve core, and positioning portions (32) are provided on the other corresponding valve core; the positioning portions extend into the positioning slots, and after the two valve cores move relatively, the positioning portions form axial interference and circumferential limitation with the valve cores having the positioning slots; the circumferential limitation of the two valve cores enables the two valve cores to rotate synchronously, such that communication portions (31) on the valve cores can connect the communication channels on the two valve seats. A synchronized circumferential transmission is formed between the two valve cores, thereby reducing an associated structure between the valve cores and the valve seats; in addition, by means of the synchronized circumferential transmission between the valve cores, the movement precision of the valve cores during opening or closing movement can be improved, thereby effectively avoiding situations such as misalignment of the communication portions, and reducing movement errors caused by the valve seats serving as intermediate transmission components.

Description

Fluid connector

[0001] The present application claims priority to the Chinese patent application No. 202410662796.0, 202421167889.8, filed on May 24, 2024, and entitled "A fluid connector", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of fluid communication, in particular to a fluid connector. 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 core 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 driving of the valve core is usually completed by the valve seat, which leads to a complex connection structure between the valve seat and the valve core. Meanwhile, there is an intermediate transmission component (valve seat) between the valve cores, which may cause movement errors of the two valve cores during the movement, resulting in misalignment of the communication part on the valve core and affecting the normal flow of the fluid.

[0006] Therefore, in view of the above technical problems, how to simplify the connection structure between the valve core and the valve seat and reduce the movement error between the valve cores 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 connection structure between the valve core and the valve seat and reduce the movement error caused by the valve seat as an intermediate transmission component.

[0008] To achieve the above-mentioned purpose, the present application provides a fluid connector, which includes at least two valve seats with communication channels and valve cores rotatably arranged on opposite sides of the valve seats and used for opening and closing the communication channels. One of the valve cores is provided with a positioning groove, and the other valve core is provided with a positioning part. The positioning part extends into the positioning groove and axially interferes with and circumferentially limits the valve core with the positioning groove after the relative movement of the two valve cores. The circumferential limitation of the two valve cores enables synchronous rotation, so that the communication part on the valve core can communicate the communication channels on the two valve seats.

[0009] Optionally, the positioning part comprises a positioning handle and a positioning hook arranged on the positioning handle and oppositely bent, the valve core with the positioning slot is provided with an accommodation space for accommodating the positioning hook, so that after the relative movement of the positioning part and the positioning slot, the positioning hook enters the accommodation space and abuts against the side wall of the accommodation space at least in the axial direction of the valve core.

[0010] Optionally, the positioning handle is located in the positioning slot and abuts against the slot wall of the positioning slot at least in the circumferential direction of the valve core after the positioning hook enters the accommodation space.

[0011] Optionally, the accommodation space is located on the side of the valve core facing the valve seat, the positioning hook extends into the side of the positioning slot and extends out of the other side of the positioning slot, and the positioning hook corresponds to the position of the accommodation space.

[0012] Optionally, the number of the positioning part and the positioning slot is multiple, and they are one-to-one corresponding, and multiple positioning parts are uniformly distributed along the circumferential direction of the valve core.

[0013] Optionally, the positioning handle is arranged on the end face of the valve core facing the other valve core and extends towards the positioning slot, the positioning hook extends along the circumferential direction of the valve core, and the extension direction of each positioning hook is consistent, and there is a clamping space between the positioning hook and the end face of the corresponding valve core to clamp the body at the accommodation space of the other valve core.

[0014] Optionally, a limiting part is arranged on the valve seat, the limiting part comprises a first limiting protrusion arranged on the outer periphery of the valve core, and a second limiting protrusion arranged on the valve core 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 core.

[0015] Optionally, an operation part is further arranged, the operation part is connected with the valve core to drive the relative movement of the two valve cores and / or drive the circumferential transmission of the two valve cores.

[0016] Optionally, a communication part is arranged on each valve core, and the communication parts on the two valve cores are communicated at least after the positioning part and the positioning slot are matched in place.

[0017] Optionally, the relative movement comprises the relative rotation of the two valve cores.

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

[0019] The application reduces the associated structure between the valve core and the valve seat through the transmission connection between the valve cores, and reduces the complexity of the internal structure of the fluid connector;

[0020] Since the associated structure does not need to be arranged on the valve seat, the machining difficulty and cost of the valve seat and the entire fluid connector are reduced;

[0021] In addition, through the synchronous circumferential transmission between the valve cores, the movement accuracy between the valve cores when the valve cores are in the on or off movement can be improved, so as to ensure the alignment accuracy of the communication parts on the valve cores, thereby effectively avoiding the misalignment of the communication parts and reducing the movement error caused by the valve seat as an intermediate transmission component.

[0022] Furthermore, through the relative movement between the valve cores, the valve cores are axially locked or unlocked, so that the connectors are connected or disconnected, the fluid connector is convenient to disassemble and assemble, and the work efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only 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.

[0024] Fig. 1 is a schematic view of a fluid connector and a fluid passage connection structure provided by an embodiment of the application;

[0025] Fig. 2 is a schematic view of a valve seat and a corresponding valve core arrangement provided by an embodiment of the application;

[0026] Fig. 3 is a schematic view of a cross-sectional structure of Fig. 2;

[0027] Fig. 4 is a schematic view of another valve seat and a corresponding valve core arrangement provided by an embodiment of the application;

[0028] Fig. 5 is a schematic view of a cross-sectional structure of Fig. 4.

[0029] In the drawings: 1, fluid passage; 2, valve seat; 21, communication channel; 3, valve core; 31, communication part; 32, positioning part; 321, positioning handle; 322, positioning hook; 323, clamping space; 33, second limiting protrusion; 34, positioning groove; 35, containing space; 36, sealing ring; 4, limiting part; 41, first limiting protrusion; 5, operation part. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0031] It should be noted that in the present embodiment, the directions or positional relationships indicated by "up", "down", "front", "back" 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 do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore 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.

[0032] 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.

[0033] When connecting the corresponding fluid passages, the fluid connector is installed on one fluid pipe (or a collector) by the first connecting piece, and installed on another fluid pipe (or a liquid cooling terminal) by the second connecting piece, and by the cooperation of the first connecting piece and the second connecting piece, a fluid connector for controlling fluid flow or shut-off is formed.

[0034] In the process of controlling fluid flow or shut-off of the fluid connector, the valve core is usually driven to move by the valve seat, that is, the valve seat in the first connecting piece is provided with a protruding structure, the protruding structure is clamped with the valve core in the second connecting piece, so as to drive the valve core in the second connecting piece to move; similarly, the valve seat of the second connecting piece can also be provided with a protruding structure, and the protruding structure is clamped with the valve core in the first connecting piece, so as to drive the valve core in the first connecting piece to move, so as to realize the transmission of the valve core, and finally in the process of transmission of the valve core, the communication part on the valve core is communicated with the communication channel on the valve seat or shut-off, so as to communicate or shut-off the corresponding fluid passages. Based on the above status, the present application proposes to cancel the associated structure between the valve core and the valve seat, and directly associate between the valve cores to form synchronous circumferential transmission, so as to reduce the movement error between the valve cores.

[0035] As shown in Fig. 1, in the present embodiment, a fluid connector is provided, mainly comprising valve seats 2 and valve cores 3. Generally, according to the characteristics of the fluid connector itself, it is necessary to complete the connection of two or more fluid passages 1 at least on both sides of the fluid connector, thus the number of valve seats 2 is at least two. Each valve seat 2 has a communication channel 21, when the fluid passage 1 is connected with the valve seat 2, the fluid passage 1 can keep in communication with the communication channel 21, but whether the communication channel 21 between the valve seats 2 is in communication needs to be determined by the corresponding valve core 3.

[0036] Further, the valve core 3 is arranged on the opposite side of the valve seat 2, and the communication of the communication channel 21 is realized by the rotation of the valve core 3 relative to the valve seat 2. That is to say, each valve seat 2 is provided with a valve core 3. It should be noted that the opposite side of the valve seat 2 refers to the side of the two valve seats 2 facing each other, but is not limited to the end face of the two valve seats 2 facing each other, but also can be the valve seat 2 body near the facing end face. In other words, the valve cores 3 can not have other spacing structures between them, or part of the valve seat 2 structure can be spaced between the valve cores 3, as long as the valve seat 2 does not affect the normal opening and closing of the valve core 3 to the communication channel 21.

[0037] It should be noted that the number of communication channels 21 on the valve seat 2 is determined according to the number of fluid passages 1, and one valve seat 2 can expand multiple other communication channels 21 parallel to each other, please refer to Fig. 1, and multiple communication channels 21 can correspond to multiple fluid passages 1 one by one, but for two different valve seats 2 in a fluid connector, the number of communication channels 21 can be the same or different, and the position can be one by one or staggered, but it is necessary to ensure that the communication part 31 on the valve core 3 in the communication state, there is a position to meet the communication of the communication part 31 and the communication channel 21, and another position to meet the shut-off of the communication part 31 and the communication channel 21.

[0038] In addition, if the number of valve seats 2 is two, then the corresponding two valve cores 3 can be directly arranged on the opposite sides of the two valve seats 2, so that the communication part 31 communicates with the communication channels 21 on the two valve seats 2 by rotating the valve core 3 relative to the valve seat 2; if the number of valve seats 2 is greater than two, here taking three valve seats 2 as an example, one valve seat 2 needs to be connected with the other two valve seats 2 at the same time, here the three valve seats 2 are sequentially referred to as the first valve seat, the second valve seat and the third valve seat, and part of the communication channels 21 on the first valve seat need to be opened and closed by two valve cores 3 with part of the communication channels 21 on the second valve seat, and other part of the communication channels 21 on the first valve seat also need to be opened and closed by two valve cores 3 with part of the communication channels 21 on the third valve seat, similarly, other part of the communication channels 21 on the second valve seat and other part of the communication channels 21 on the third valve seat are opened and closed by two valve cores 3, thereby forming a triangular connection structure, so that the connection relationship between the three valve seats is two-by-two connection. That is, even if the number of valve seats 2 is four, five, six or the like, here we only need to consider the two-by-two connection relationship between adjacent two valve seats 2, which is equivalent to the connection relationship when the number of valve seats 2 is two as described above.

[0039] On this basis, the present application takes two valve seats 2 as an example to introduce, and when the number of valve seats 2 is greater than two, please refer to the connection relationship between the two valve seats 2. The valve core 3 is rotatably arranged on the two valve seats 2, one of the valve cores 3 is provided with a positioning groove 34, and the other valve core 3 is provided with a positioning part 32. Please refer to FIG. 2 and FIG. 4, the positioning part 32 can be an integral molding structure with the valve core 3, or a detachable structure, which is not limited here. The positioning part 32 extends into the positioning groove 34, and after the relative movement of the two valve cores 3, the positioning part 32 axially interferes with the valve core 3 with the positioning groove 34 and is circumferentially limited, so that the two valve cores 3 are axially locked, and at the same time, the two valve cores 3 are circumferentially limited to rotate synchronously, and the communication part 31 on the valve core 3 can communicate the communication channels 21 on the two valve seats 2; in other words, during the circumferential limiting and synchronous rotation of the two valve cores 3, there is a position state in which the communication part 31 on the valve core 3 communicates the communication channels 21 on the two valve seats 2. It can be understood that the positioning part 32 extends into the positioning groove 34, which means that the positioning part 32 on one valve core 3 extends into the positioning groove 34 on the other valve core 3, so that after the relative movement of the two valve cores 3, the two valve cores 3 form an axial interference and circumferential limiting relationship with each other, thereby ensuring that the two valve cores 3 can rotate synchronously to realize synchronous opening and closing operation of the communication channels 21 on the corresponding two valve seats 2.

[0040] It can be seen that the present application has two sets of relative motion relationship, that is, the rotation of the valve core 3 relative to the valve seat 2 and the relative movement between the two valve cores 3, which will be described one by one.

[0041] The relative movement between the two valve cores 3 is to make the positioning portion 32 and the positioning groove 34 reach a connected state, so as to realize synchronous rotation of the two valve cores 3 in the connected state, and the communication portions 31 on the two valve cores 3 are in a communication state in the synchronous rotation, so as to ensure the alignment accuracy of the communication portions 31. However, whether it is relative rotation or relative sliding, the connected state of the positioning portion 32 and the positioning groove 34 means that the two valve cores 3 reach an axial interference and circumferential limiting state, at which the two valve cores 3 can be synchronously rotated in the circumferential limiting state, and the axial interference avoids the two valve cores 3 from moving away from each other, realizing axial locking. Of course, the axial and circumferential directions are based on the disc-shaped valve core 3 and the premise that the valve core 3 is rotatably arranged relative to the valve seat 2. It can be understood that the two valve cores 3 can be synchronously rotated in the circumferential limiting state.

[0042] However, the valve core 3 can also be other shapes except for the disc shape, such as regular polygons such as rectangles, and irregular shapes, which are not limited here. However, it should be noted that for other shapes except for the disc shape, the axial and circumferential directions can be explained as follows: the axial direction is perpendicular to the plane of the valve core 3, and the circumferential direction is the direction of the rotation axis of the valve core 3 during rotation.

[0043] The rotation of the valve core 3 relative to the valve seat 2 occurs after the relative movement of the two valve cores 3, that is, under the condition that the two valve cores 3 are synchronously rotated. During synchronous rotation, since the valve seat 2 is relatively fixed, the valve core 3 will naturally rotate relative to the valve seat 2, so that the communication portion 31 on the valve core 3 communicates the communication channels 21 on the two valve seats 2 when the relative rotation reaches a position state.

[0044] In summary of the above embodiments, the application reduces the associated structure between the valve core 3 and the valve seat 2 through the transmission connection between the valve cores 3, and reduces the complexity of the internal structure of the fluid connector. Since the associated structure does not need to be provided on the valve seat 2, the machining difficulty and cost of the valve seat 2 and the entire fluid connector are reduced. In addition, through the synchronous circumferential transmission between the valve cores 3, the movement accuracy between the valve cores 3 when the valve cores 3 are conducting or shutting off can be improved, so as to ensure the alignment accuracy of the communication portions 31 on the valve cores 3, effectively avoid misalignment of the communication portions 31, and reduce the movement error caused by the valve seat as an intermediate transmission component. Furthermore, through the relative movement between the valve cores 3, the valve cores 3 are axially locked or unlocked, so that the connectors are connected or disconnected, facilitating quick disassembly and assembly of the fluid connector, and improving work efficiency.

[0045] Further, in order to realize the connection of the positioning portion 32 and the positioning groove 34 after the relative movement of the two valve cores 3, the positioning portion 32 includes a positioning handle 321 and a positioning hook 322 arranged on the positioning handle 321 and relative to the bending, please refer to Fig. 3. The relative bending means that the positioning handle 321 and the positioning hook 322 have a certain angle, which can be a right angle, an acute angle, an obtuse angle or an arc angle. The valve core 3 with the positioning groove 34 is provided with an accommodation space 35 for accommodating the positioning hook 322, please refer to Fig. 5, so that after the relative movement of the positioning portion 32 and the positioning groove 34, the positioning hook 322 enters the accommodation space 35, and the positioning hook 322 at least abuts against the side wall of the accommodation space 35 in the axial direction of the valve core 3.

[0046] Specifically, before the positioning portion 32 and the positioning groove 34 reach the connection state, the positioning portion 32 needs to be inserted into the positioning groove 34 first, at which time the positioning portion 32 and the positioning groove 34 do not require clamping. After the positioning portion 32 is inserted in place, the two valve cores 3 are relatively rotated or relatively slid, so that the positioning hook 322 enters the accommodation space 35, at which time the positioning hook 322 can abut against the side wall of the accommodation space 35 in the axial direction of the valve core 3, realizing the axial interference.

[0047] Meanwhile, after the positioning hook 322 enters the accommodation space 35, the positioning handle 321 abuts against the groove wall of the positioning groove 34 at least in the circumferential direction of the valve core 3, thereby realizing the circumferential limiting. That is to say, before the positioning hook 322 enters the accommodation space 35, the positioning handle 321 has a certain reserved space at least in the direction of relative movement with the positioning groove 34, so that the positioning portion 32 can relatively move with the positioning groove 34.

[0048] At this point, the axial interference and the circumferential limiting of the two valve cores 3 are realized through the relative movement of the two valve cores 3. It should be pointed out that since the relative movement of the valve core 3 includes relative rotation and relative sliding, the two kinds of relative movements are analyzed one by one.

[0049] When the valve core 3 is relatively rotated, the positioning hook 322 also rotates relative to the positioning groove 34 with the rotation axis of the valve core 3 as the center. At this time, due to the existence of the accommodation space 35, the positioning hook 322 will be dislocated with the positioning groove 34 in the axial direction of the valve core 3 and gradually rotate into the accommodation space 35, while the positioning handle 321 is always located in the positioning groove 34 and abuts against the groove wall of the positioning groove 34 until the circumferential limiting is realized. At this time, rotating the valve core 3 can drive the other valve core 3 to rotate synchronously.

[0050] Or, when the valve core 3 occurs relative sliding, the positioning hook 322 is also relative to the positioning groove 34 of the valve core 3 occurs sliding, at this time due to the existence of the containing space 35, the positioning hook 322 will be misaligned with the positioning groove 34 in the axial direction of the valve core 3, and gradually slide into the containing space 35, and the positioning handle 321 is always located in the positioning groove 34, and until the positioning handle 321 and the groove wall of the positioning groove 34 abut, realizing the circumferential limiting, at this time rotating the valve core 3 can drive the corresponding another valve core 3 to rotate synchronously.

[0051] It should be noted that the containing space 35 here only refers to the space into which the positioning hook 322 enters after the positioning part 32 and the positioning groove 34 are relatively active. Generally, the containing space 35 is provided at the valve core 3, which can be a groove opened on the valve core 3, or a hole opened on the valve core 3. If the containing space 35 is a groove opened on the valve core 3, the containing space 35 is located on the side of the valve core 3 facing the valve seat 2, the positioning hook 322 extends from one side of the positioning groove 34 and extends from the other side of the positioning groove 34, and the positioning hook 322 can correspond to the position of the groove after extending out. At this time, only relative rotation or relative sliding of the valve core 3 is required to make the positioning hook 322 extend into the groove, so that the groove interferes with the positioning hook 322 in the axial direction of the valve core 3. If the containing space 35 is a hole opened on the valve core 3, the positioning hook 322 extends from one side of the positioning groove 34, but it is not required that the positioning hook 322 extends from the other side of the positioning groove 34. It is only required to ensure that the positioning hook 322 can correspond to the position of the hole. At this time, by relative rotation or relative sliding of the valve core 3, the positioning hook 322 enters the hole, so that the hole interferes with the positioning hook 322 in the axial direction of the valve core 3.

[0052] In addition, when the containing space 35 is a groove opened on the valve core 3, if the positioning hook 322 protrudes from the end face of the valve core 3 after entering the groove, a reserved space for the positioning hook 322 to rotate needs to be reserved between the valve core 3 and the valve seat 2. In other words, after the positioning hook 322 and the positioning groove 34 are in a connected state, the positioning hook 322 will also rotate synchronously during the synchronous rotation of the two valve cores 3. At this time, if the positioning hook 322 protrudes outside the valve core 3, in order to avoid affecting the normal rotation of the positioning hook 322 and the valve core 3, a certain space needs to be reserved between the valve core 3 and the valve seat 2, so as to meet the rotation requirement of the positioning hook 322.

[0053] It should be noted that the above indicates that one valve core 3 is provided with a positioning groove 34, and the other valve core 3 is provided with a positioning portion 32, thereby forming a set of connecting structures, but it is not limited to that only one valve core 3 is provided with a positioning groove 34 or a positioning portion 32, and the same valve core 3 can also be provided with a positioning groove 34 and a positioning portion 32, thereby forming two sets of connecting structures, but it is necessary to ensure that the positioning portion 32 on one valve core 3 can cooperate with the positioning groove 34 and the accommodating space 35 on the corresponding other valve core 3.

[0054] In order to improve the connection effect of the two valve cores 3 during synchronous rotation, the number of positioning portions 32 and positioning grooves 34 is set to be multiple, and one-to-one correspondence is provided, please refer to FIG. 2 and FIG. 4, multiple positioning portions 32 are uniformly distributed along the circumference of the valve core 3, so that the two valve cores 3 are more uniform in stress during axial interference and axial limiting connection, and the accuracy of synchronous rotation of the two valve cores 3 is ensured.

[0055] On the basis of the above embodiment, for the two relative movement modes of the valve core 3, the application proposes the following specific setting modes of the positioning portion 32 and the positioning groove 34:

[0056] I. When the valve core 3 rotates relative to the other valve core 3

[0057] The positioning handle 321 is arranged on the end surface of the valve core 3 facing the other valve core 3, and extends towards the direction of the positioning groove 34, and the positioning handle 321 is preferably arranged perpendicular to the end surface of the valve core 3, and the positioning hook 322 extends along the circumference of the valve core 3, and the extension direction of each positioning hook 322 is consistent, that is, the arrangement mode of FIG. 2; the positioning groove 34 also extends a certain length along the circumference of the valve core 3, and the profile of the positioning groove 34 is slightly larger than the profile of the positioning hook 322, so that the positioning handle 321 can extend into the positioning groove 34, and the positioning hook 322 can also extend into the positioning groove 34, that is, the arrangement mode of FIG. 4, after the valve core 3 rotates relative to the other valve core 3, the positioning hook 322 can gradually enter the accommodating space 35 along the circumference of the valve core 3, and at the same time, the positioning handle 321 will gradually approach the side wall of the positioning groove 34 along the circumference of the valve core 3 in the positioning groove 34, and finally realize circumferential limiting, thereby realizing the rotation clamping of the two valve cores 3.

[0058] Or, the positioning handle 321 is arranged on the end surface of the valve core 3 facing the corresponding other valve core 3 and extends towards the direction of the positioning groove 34, and preferably the positioning handle 321 is arranged perpendicularly to the end surface of the valve core 3, and the positioning hook 322 extends along the radial direction of the valve core 3; the positioning groove 34 needs to extend along the radial direction and the circumferential direction of the valve core 3 respectively, the part of the positioning groove 34 extending along the radial direction has a profile slightly larger than that of the positioning hook 322, so as to ensure that the positioning hook 322 can extend into the part extending along the radial direction, and the part of the positioning groove 34 extending along the circumferential direction needs to accommodate the positioning handle 321 and reserve a certain rotating space for the positioning handle 321 to rotate along the circumferential direction of the valve core 3; after the relative rotation of the valve core 3, the positioning hook 322 gradually enters the accommodating space 35 along the circumferential direction of the valve core 3, and the positioning handle 321 gradually approaches the side wall of the part of the positioning groove 34 extending along the circumferential direction and finally realizes circumferential limiting, so as to realize the rotation clamping of the two valve cores 3.

[0059] II. When the valve core 3 slides relatively

[0060] The positioning handle 321 can also be arranged on the end surface of the valve core 3 facing the corresponding other valve core 3 and extend towards the direction of the positioning groove 34, and preferably the positioning handle 321 is arranged perpendicularly to the end surface of the valve core 3, and the extending direction of the positioning hook 322 can be various, as long as it has a certain bending angle with the positioning handle 321, and under this premise, the positioning groove 34 only needs to be roughly consistent with the profile of the positioning hook 322, so that the positioning hook 322 and the positioning handle 321 can simultaneously extend into the positioning groove 34, and it needs to be noted that if the positioning hook 322 extends along the radial direction of the valve core 3, the positioning groove 34 also extends along the radial direction, and at this time the direction of the relative sliding of the valve core 3 is also the radial direction, and the positioning handle 321 can directly abut against the groove wall of the positioning groove 34 along the circumferential direction of the valve core 3, and only needs to ensure that the positioning handle 321 leaves a reserved space along the radial direction of the valve core 3 relative to the positioning groove 34.

[0061] Of course, the direction of the relative sliding of the valve core 3 is not limited to the radial direction, and can also be the relative sliding in other directions, as long as the positioning handle 321 and the positioning hook 322 can enter the positioning groove 34 and reserve a certain circumferential sliding space for the positioning handle 321 on the positioning groove 34, and after sliding, can abut against the groove wall of the positioning groove 34 along the circumferential direction and enter the accommodating space 35 after the positioning hook 322 slides relative to the positioning groove 34, so as to form the sliding clamping.

[0062] In order to further improve the connection stability of the two valve cores 3 after the clamping, a clamping space 323 can be arranged between the positioning hook 322 and the end face of the corresponding valve core 3, that is, after the positioning hook 322 is bent relative to the positioning handle 321, there is a certain interval between the positioning hook 322 and the end face of the corresponding valve core 3, and the interval becomes the clamping space 323, so that after the positioning hook 322 enters the accommodating space 35, the clamping space 323 can be clamped on the body of the valve core 3 at the accommodating space 35, and the axial locking of the two valve cores 3 is realized.

[0063] In addition, for the communication part 31 after the relative movement of the two valve cores 3, it is necessary to ensure that it can remain in the communication state after the relative movement, thereby providing technical support for the subsequent synchronous rotation of the valve cores 3 and the conduction of the communication channel 21.

[0064] The limiting part 4 is also arranged on the valve seat 2, please refer to FIG. 1 to FIG. 5, the limiting part 4 can limit the valve core 3 axially on the valve seat 2, so that the valve core 3 is only arranged to rotate on the valve seat 2, and the relative sliding of the two valve cores 3 occurs before the two valve cores 3 keep synchronous rotation, at this time, the two valve cores 3 are not coaxially arranged, the relative sliding of the valve core 3 makes the two valve cores 3 coaxial, thereby realizing the subsequent synchronous rotation.

[0065] And the limiting part 4 includes a first limiting protrusion 41 arranged on the outer periphery of the corresponding valve core 3, and the valve core 3 is provided with a second limiting protrusion 33 embedded between the first limiting protrusion 41 and the valve seat 2, please refer to FIG. 3 and FIG. 5, the first limiting protrusion 41 and the second limiting protrusion 33 limit in the axial direction of the valve core 3, thereby ensuring that the valve core 3 is stationary in the axial direction relative to the valve seat 2.

[0066] It should be pointed out that one of the first limiting protrusion 41 and the second limiting protrusion 33 can be a continuous annular protrusion, and the other can be an intermittent annular protrusion, or both can be continuous annular protrusions; of course, the first limiting protrusion 41 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 41 does not come off from the intermittent part of the second limiting protrusion 33, and similarly, the protruding part of the second limiting protrusion 33 does not come off from the intermittent part of the first limiting protrusion 41, thereby ensuring that the valve core 3 can stably rotate on the valve seat 2.

[0067] In addition, the present application also includes an operating part 5, please refer to FIG. 1 and FIG. 2, the operating part 5 can be connected with the valve core 3, thereby driving the relative movement of the two valve cores 3 and / or driving the circumferential transmission of the two valve cores 3. That is, the operating part 5 can have three functions, one is to drive the relative movement of the two valve cores 3, the second is to drive the circumferential transmission of the two valve cores 3, that is, the circumferential synchronous rotation, and the third is to drive the relative movement of the two valve cores 3 and drive the circumferential synchronous rotation of the two valve cores 3 after the relative movement.

[0068] The operation part 5 can be an exposed structure, that is, a strip-shaped hole is formed on the limiting part 4 (not shown in the figure), one end of the exposed structure is connected with the valve core 3, and the other end extends out of the limiting part 4, so that the relative rotation of the two valve cores 3 and the circumferential synchronous rotation of the two valve cores 3 are realized by controlling the operation part 5; and the relative sliding of the two valve cores 3 only needs to control the relative sliding of the two valve seats 2 externally, and does not involve the movement of the valve core 3 itself, so that the relative sliding of the two valve cores 3 can be realized without the operation part 5.

[0069] It should be pointed out that the communication part 31 is provided on each valve core 3, please refer to FIG. 1 to FIG. 5, in this application, the communication part 31 is a communication hole, and after the positioning part 32 and the positioning groove 34 are matched in place, the communication holes on the two valve cores 3 are communicated. Of course, in order to ensure the alignment accuracy of the communication hole, before the relative movement of the two valve cores 3, there will be a certain deviation between the communication holes on the two valve cores 3, so as to ensure that the communication holes can be aligned after the relative movement of the valve core 3, so that the communication holes can directly and accurately communicate the communication passages 21 on the two valve cores 3 under the condition of synchronous rotation of the two valve cores 3.

[0070] Of course, the form of the communication hole can be various, such as straight hole, bent hole and other forms of hole, which can ensure the alignment accuracy of the hole during the synchronous rotation of the valve core 3. At the same time, sealing rings 36 can be distributed on the outer periphery of the communication hole and the valve core 3 in the circumferential direction, so as to ensure that the communication parts 31 on the two valve cores 3 remain sealed and communicated during the synchronous rotation of the two valve cores 3; similarly, sealing rings 36 can also be provided between the valve core 3 and the valve seat 2 to ensure the sealing performance of the valve core 3 during rotation. It can be understood that the shape and size of the communication hole and the communication passage 21 are substantially the same, or even the same.

[0071] In addition, during the synchronous rotation of the two valve cores 3, the communication part 31 should meet the condition that there is a position to communicate the communication passage 21, and there is another position to meet the condition of shutting off the communication passage 21. It can be seen that under the premise of synchronous rotation of the two valve cores 3, the communication and shut-off of the communication passage 21 depend on the position of the valve core 3 during the synchronous rotation, so when the communication passage 21 is shut off, the communication part 31 on the valve core 3 will not naturally communicate with the communication passage 21, so for a valve core 3 and the corresponding valve seat 2, the valve core 3 also plays a role in shutting off the valve seat 2, so as to ensure that when the fluid connector is disconnected, the corresponding fluid passage 1 is in a sealed and shut-off state, preventing fluid leakage and spraying.

[0072] It should be noted that in this specification, relationship terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between the entities.

[0073] The principles and implementations of the present application are described in detail with specific examples in this paper, and the above examples are only used to help understand the method and its core idea of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A fluid connector, characterized by, The application relates to a valve comprising at least two valve seats (2) provided with communication channels (21) and valve cores (3) arranged on opposite sides of the valve seats (2) and used for opening and closing the communication channels (21), one of the valve cores (3) is provided with a positioning groove (34), and the other valve core (3) is provided with a positioning part (32), the positioning part (32) extends into the positioning groove (34) and, after relative movement of the two valve cores (3), axially interferes with and circumferentially limits the valve core (3) provided with the positioning groove (34), the two valve cores (3) are circumferentially limited to synchronously rotate, and the communication part (31) on the valve core (3) can communicate the communication channels (21) on the two valve seats (2).

2. The fluid connector of claim 1, wherein, The positioning part (32) comprises a positioning handle (321) and a positioning hook (322) arranged on the positioning handle (321) and relatively bent, the valve core (3) provided with the positioning groove (34) is provided with an accommodation space (35) for accommodating the positioning hook (322), so that, after the relative movement of the positioning part (32) and the positioning groove (34), the positioning hook (322) enters the accommodation space (35) and abuts against the side wall of the accommodation space (35) at least in the axial direction of the valve core (3).

3. The fluid connector of claim 2, wherein, The positioning handle (321) is located in the positioning groove (34) and, after the positioning hook (322) enters the accommodation space (35), the positioning handle (321) abuts against the groove wall of the positioning groove (34) at least in the circumferential direction of the valve core (3).

4. The fluid connector of claim 2, wherein, The accommodation space (35) is located on the side of the valve core (3) facing the valve seat (2), the positioning hook (322) extends into the side of the positioning groove (34) and extends out of the other side of the positioning groove (34), and the positioning hook (322) is located opposite the accommodation space (35).

5. The fluid connector of claim 2, wherein, The number of the positioning part (32) and the positioning groove (34) is multiple and one-to-one correspondence, and the multiple positioning parts (32) are uniformly distributed along the circumferential direction of the valve core (3).

6. The fluid connector of claim 5, wherein, The positioning handle (321) is arranged on the end face of the valve core (3) facing the other valve core (3) and extends towards the positioning groove (34), the positioning hook (322) extends along the circumferential direction of the valve core (3), and the extension direction of each positioning hook (322) is consistent, and there is a clamping space (323) between the positioning hook (322) and the end face of the corresponding valve core, so as to clamp the body at the accommodation space (35) of the other valve core (3).

7. The fluid connector of claim 1, wherein, The valve seat (2) is provided with a limiting part (4), the limiting part (4) comprises a first limiting protrusion (41) arranged on the outer periphery of the corresponding valve core (3), the valve core (3) is provided with a second limiting protrusion (33) embedded between the first limiting protrusion (41) and the valve seat (2), and the first limiting protrusion (41) and the second limiting protrusion (33) limit in the axial direction of the valve core (3).

8. The fluid connector of claim 1, wherein, The operation part (5) is connected with the valve core (3) to drive the relative movement of the two valve cores (3) and / or to drive the circumferential transmission of the two valve cores (3).

9. The fluid connector of claim 1, wherein, The communication part (31) is arranged on each valve core (3), and the communication parts (31) on the two valve cores (3) are communicated at least after the positioning part (32) and the positioning groove (34) are matched in place.

10. The fluid connector of any one of claims 1-9, wherein, The relative movement includes the relative rotation of the two valve cores (3).

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