Fluid connector and connecting portion thereof

Abstract

A connecting portion of a fluid connector and a fluid connector comprising the connecting portion. A connecting portion (100) is configured to be fitted to a fitting portion (200); the connecting portion (100) comprises a first valve (1-1) and a first valve seat (2-1); the connecting portion (100) has a first snap-fit portion (4) configured to be snap-fitted with a second snap-fit portion (3) of the fitting portion (200); a recess (5) is formed in the first valve (1-1); a blocking member (6) is movably connected to the first valve seat (2-1); the blocking member (6) extends into the recess (5) to block the first valve (1-1) from moving relative to the first valve seat (2-1), and can be pushed by a pushing portion (7) of the fitting portion (200) to disengage from the recess (5) once the first snap-fit portion (4) is snap-fitted with the second snap-fit portion (3). In this way, before completing snap-fitting, the blocking member (6) blocks the first valve (1-1) from rotating relative to the first valve seat (2-1) to maintain the first valve in the current state, thereby ensuring that snap-fitting is completed first. Therefore, the connecting portion (100) can effectively solve the problem that the valve may be opened in advance when first performing snap-fitting.

Description

Fluid connector and connecting end thereof

[0001] The present application claims priority to the Chinese patent application No. 202410841190.3, filed on June 26, 2024, and entitled "Fluid connector and connecting end thereof", 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 channel connection, more particularly, to a connecting end of a fluid connector, and to a fluid connector. BACKGROUND

[0003] The fluid connector mainly comprises two connecting heads, which can be identical or different in structure and are connected to each other by butt joint for further connection. For the convenience of description, one connecting head is referred to as a connecting end, and the other connecting head is referred to as a butt joint end.

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

[0005] When the connecting end and the butt joint end are connected, it is generally necessary to perform clamping connection and then push the valve on the opposite side to rotate together. However, through long-term research, the inventors have found that when clamping operation is performed, the valve can be driven to rotate in advance, so that the valve is opened in advance, resulting in a leakage problem. SUMMARY

[0006] Therefore, the first object of the present application is to provide a connecting end of a fluid connector, which can effectively solve the problem that the valve can be opened in advance when clamping is performed. The second object of the present application is to provide a fluid connector.

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

[0008] A connecting end of a fluid connector is used for cooperating with a butt joint end for connection, the connecting end comprises a first valve and a first valve seat, the connecting end has a first clamping portion for realizing clamping connection with a second clamping portion of the butt joint end, the first valve has a slot, the first valve seat movably connects a blocking member, the blocking member extends into the slot to block the movement of the first valve relative to the first valve seat, and the blocking member can be pushed out of the slot by a pushing portion of the butt joint end after the first clamping portion and the second clamping portion realize clamping connection.

[0009] In use, during the process of connecting end and counter connecting end to be connected, the connecting end and the counter connecting end are relatively movable, which can be the whole or part of the structure, so that the second clamping part and the first clamping part are clamped, and during the clamping process, the pushing part moves with the second clamping part to push the blocking part to move relative to the slot, and after the clamping is completed (including the time when the clamping is completed), the blocking part is separated from the slot, so that when the valve or valve seat of the counter connecting end where the pushing part is located continues to rotate, the first valve of the connecting end can be pushed to move until the communication channel of the valve seat of the connecting end is opened. This makes the first valve be prevented from rotating relative to the first valve seat by the blocking part before the clamping is completed, so as to maintain the current state and ensure that the clamping is completed first. During the clamping process, the friction force acting on the first valve can no longer push the first valve to rotate, so as to ensure that the clamping and the movement of the first valve are sequentially completed. Therefore, the connecting end can effectively solve the problem that the valve may be opened too early when clamping is performed first.

[0010] In some embodiments, the first valve is provided with a clamping groove for cooperating with the clamping hook of the counter connecting end, and at least one inner end of the clamping groove is provided with the slot. An end of the clamping groove facing the slot forms the first clamping part to cooperate with the second clamping part formed on the clamping hook.

[0011] In some embodiments, the first valve is uniformly provided with a plurality of clamping grooves along a circumference. An inner side of one end of the clamping groove in the circumferential direction is the first clamping part, and an inner side of the clamping groove forms a receiving groove for accommodating the hook part of the clamping hook. At least one receiving groove is the slot to correspond to the blocking part.

[0012] In some embodiments, one end of the slot in the circumferential direction is arranged in alignment with the corresponding end of the clamping groove, and the other end is longer than the corresponding end of the clamping groove, so that the bottom of the slot forms the first clamping part. The first valve is rotatably installed on the first valve seat, and the rotation axis is consistent with the axis of the clamping groove distribution circumference.

[0013] In some embodiments, the blocking part has a groove for cooperating with the end of the pushing part. A second groove wall of the groove in the pushing direction of the pushing part forms an inclined surface for abutting the pushing part to be pushed out of the slot when the pushing part moves in the pushing direction.

[0014] In some embodiments, a first groove wall of the groove in the pushing direction of the pushing part forms an inclined surface to cooperate with the avoidance inclined surface formed on the rear side of the pushing part in the pushing direction.

[0015] In some embodiments, the blocking part abuts the first valve seat through the elastic device to push the blocking part into the slot through the elastic device.

[0016] To achieve the first object, the application further provides a connecting end of a fluid connector, which comprises a first valve seat and a first valve capable of opening and closing a communicating passage on the first valve seat, the first valve is provided with a plurality of clamping grooves arranged in sequence around the rotation axis of the first valve and exposed on one side of the first valve seat, the inner side of each clamping groove is provided with a receiving groove, each receiving groove is arranged in extension in the same circumferential direction around the rotation axis of the first valve compared with the clamping groove, the first valve seat is provided with a blocking member capable of moving in the axial direction of the rotation axis, in the closed state of the first valve, the blocking member is aligned with and slidingly fitted in at least one receiving groove to prevent the first valve from rotating relative to the first valve seat when extending into the receiving groove. Since the connecting end has the above technical effects, the connecting end with the corresponding blocking member should also have the corresponding technical effects.

[0017] To achieve the second object, the application further provides a fluid connector, which comprises any of the above connecting ends and a counter connecting end, the connecting end and the counter connecting end can be connected in cooperation, the counter connecting end is provided with a pushing part to push the blocking member of the connecting end out of the slot after the first clamping part of the connecting end and the second clamping part of the counter connecting end are clamped and connected. Since the connecting end has the above technical effects, the fluid connector with the connecting end should also have the corresponding technical effects.

[0018] In some technical solutions, the counter connecting end is provided with a clamping hook, the clamping hook comprises a handle part and a hook part protruding in the circumferential direction around the rotation axis of the first valve, the hook part constitutes the second clamping part, the first valve is provided with a clamping groove for the handle part of the clamping hook to extend into in the direction of the rotation axis, the inner end of at least one clamping groove is provided with the slot to accommodate the hook part of the clamping hook, and the clamping hook corresponding to the slot is the pushing part of the counter connecting end; during the clamping process, the pushing part and the blocking member are in abutment through the inclined surface inclined relative to the moving direction of the blocking member.

[0019] In some technical solutions, the counter connecting end comprises a second valve seat and a second valve, the second valve is provided with the clamping hook, the second valve is rotatably installed on the second valve seat and the rotation axis is consistent with the rotation axis of the first valve, the outer side of the second valve seat is provided with an operating structure for pushing the first valve to rotate.

[0020] In some technical solutions, during the rotation of the hook relative to the slot to complete the clamping process, the pushing portion can push the blocking member to move in a direction away from the slot, and when the handle portion moves to abut against the circumferential side wall of the slot, the communication hole of the first valve and the communication hole of the second valve are aligned, and the blocking member is completely separated from the slot.

[0021] In order to achieve the second purpose, the application further provides a fluid connector, which comprises a connecting end and a counter end, the connecting end and the counter end are clamped by a second clamping portion and a first clamping portion, the counter end has a pushing portion, the connecting end comprises a first valve and a first valve seat, the first valve has a slot, the first valve seat is slidably connected with a blocking member, the blocking member extends into the slot to prevent the first valve from moving relative to the first valve seat, and the pushing portion pushes the blocking member to separate from the slot when the second clamping portion and the first clamping portion move relative to each other to achieve clamping. Since the connecting end has the above technical effects, the fluid connector with the connecting end should also have corresponding technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Fig. 1 is an exploded structural schematic diagram of the fluid connector provided by the embodiment of the application;

[0024] Fig. 2 is a structural schematic diagram of the blocking member provided by the embodiment of the application;

[0025] Fig. 3 is a cross-sectional structural schematic diagram of the connecting end provided by the embodiment of the application;

[0026] Fig. 4 is a cross-sectional structural schematic diagram of the counter end provided by the embodiment of the application;

[0027] Fig. 5 is a local structural schematic diagram of the valve seat of the connecting end provided by the embodiment of the application;

[0028] Fig. 6 is a structural schematic diagram of the valve of the connecting end provided by the embodiment of the application;

[0029] Fig. 7 is a cross-sectional structural schematic diagram of the fluid connector when the hook passes through the slot provided by the embodiment of the application;

[0030] Fig. 8 is a structural schematic diagram of the hook and the slot forming a rotary connection provided by the embodiment of the application.

[0031] The connection end 100, the docking end 200, the first valve 1-1, the second valve 1-2, the first valve seat 2-1, the second valve seat 2-2, the second clamping part 3, the first clamping part 4, the slot 5, the blocking part 6, the pushing part 7, the groove 8, the second groove wall 9, the first groove wall 10, the avoiding inclined surface 11, the communication channel 12, the elastic device 13, the hook 14, the clamping groove 15, the operation structure 16, the handle 14-1, and the hook part 14-2. DETAILED DESCRIPTION

[0032] The connection end of the fluid connector disclosed in the embodiments of the present application can effectively solve the problem that the valve may be opened in advance when clamping is performed in advance.

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with 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.

[0034] Please refer to FIGS. 1-8. FIG. 1 is an exploded structural schematic diagram of a fluid connector provided by an embodiment of the present application; FIG. 2 is a structural schematic diagram of a blocking part provided by an embodiment of the present application; FIG. 3 is a cross-sectional structural schematic diagram of a connection end provided by an embodiment of the present application; FIG. 4 is a cross-sectional structural schematic diagram of a docking end provided by an embodiment of the present application; FIG. 5 is a local structural schematic diagram of a valve seat of the connection end provided by an embodiment of the present application; FIG. 6 is a structural schematic diagram of a valve of the connection end provided by an embodiment of the present application; FIG. 7 is a cross-sectional structural schematic diagram of the fluid connector when a hook passes through a clamping groove provided by an embodiment of the present application; and FIG. 8 is a structural schematic diagram of the hook and the clamping groove forming a rotary connection provided by an embodiment of the present application.

[0035] In some embodiments, a fluid connector is provided, which includes at least two connection heads. For the convenience of description, one of the connection heads is a connection end 100, and the other is a docking end 200. The connection end 100 and the docking end 200 are connected in cooperation, so that in a connected state, the positions of the two are fixed and the communication channels 12 of the two are connected in communication.

[0036] In some embodiments, at least one of the connection heads includes a valve and a valve seat. The valve is movably arranged on the valve seat to open and close the communication channel 12 on the valve seat. When the communication channel 12 is opened, the valve can communicate fluid with the communication channel 12 on the other connection head, and when the communication channel 12 is closed, the valve cannot communicate fluid with the communication channel on the other connection head. The valve can be moved in a sliding manner, a rotating manner, etc. The specific movement manner can be set as needed.

[0037] In some embodiments, the abutting end 200 and the connecting end 100 are connected by the second clamping part 3 and the first clamping part 4, mainly by abutting in the abutting direction through the second clamping part 3 and the first clamping part 4, to lock in the abutting direction, and the clamping mode is, for example, rotary clamping or sliding clamping. In the rotary clamping mode, the second clamping part 3 and the first clamping part 4 are relatively rotated to enter the relative position from the staggered position, so as to abut in the abutting direction in the relative position. The abutting direction can be the direction in which the abutting end 200 and the connecting end 100 are substantially parallel to each other, or the direction in which the communication channel 12 of the abutting end 200 and the communication channel 12 of the connecting end 100 are parallel to each other. The abutting direction can be consistent or different. The specific structure of the second clamping part 3 and the first clamping part 4 does not require obvious difference, and generally one is the hook part 14-2 of the clamping hook 14 and the other is the end of the clamping groove 15 in the groove depth direction or the clamping shoulder formed by the groove wall of the clamping groove 15.

[0038] In some embodiments, the connecting end 100 has a first clamping part 4 for clamping connection with the abutting end 200. Specifically, the first clamping part 4 can be the hook part 14-2 of the clamping hook 14 or the end of the clamping groove 15 in the groove depth direction.

[0039] In some embodiments, the connecting end 100 is provided with a valve and a valve seat, and the abutting end 200 can also be provided with a valve and a valve seat or can not be provided with a valve and a valve seat. In order to facilitate the distinction and description, the valve of the connecting end 100 is referred to as the first valve 1-1 and the valve seat of the connecting end 100 is referred to as the first valve seat 2-1. When the abutting end 200 is provided with a valve and a valve seat, the valve of the abutting end 200 is referred to as the second valve 1-2 and the valve seat of the abutting end 200 is referred to as the second valve seat 2-2.

[0040] In some embodiments, the first valve 1-1 can be provided with a slot 5, and the first valve seat 2-1 is movably connected with a blocking member 6 which extends into the slot 5 to block the movement of the first valve 1-1 relative to the first valve seat 2-1, so that the first valve 1-1 is kept in the current position, such as kept in the closed state or kept in the closed state. Specifically, when the slot 5 and the blocking member 6 are aligned, the blocking member 6 can slide into the slot 5 at one end and slide into the sliding hole of the first valve seat 2-1 at the other end, thereby being limited in the direction perpendicular to the sliding direction, and the opening direction of the first valve 1-1 relative to the first valve seat 2-1 is perpendicular to the above-mentioned sliding direction. Through the cooperation of the blocking member 6 and the slot 15, when the first valve 1-1 is subjected to external force, especially the frictional force given at the docking end 200, under the action of the blocking member 6, the first valve 1-1 cannot move relative to the first valve seat 2-1, so as to be kept in the current closed position. The blocking member 6 can be equivalent to a pin member, and the sliding direction thereof can be perpendicular to the movement direction of the first valve 1-1, so as to better block the rotation of the first valve 1-1. Of course, other positions can also be provided, as long as the first valve 1-1 can be blocked from rotating, such as the engagement between the blocking member 6 and the first valve 1-1. It should be noted that the above-mentioned first clamping portion 4 can be provided at the slot 5, or can be provided at other structures of the first valve 1-1.

[0041] In some embodiments, the blocking member 6 can be pushed out of the slot 5 by the pushing part 7 of the mating end 200 after the first clamping part 4 and the mating end 200 achieve the clamping connection, wherein the pushing can be direct pushing or indirect pushing. That is, after the blocking member 6 extends into the slot 5, the pushing part 7 moves relative to the first valve 1-1 of the connecting end 100 to push the blocking member 6 to move in the direction of moving out of the slot 5 during the clamping process of the mating end 200 and the connecting end 100 through the first clamping part 4 and the second clamping part 3, and the blocking member 6 is completely moved out of the slot 5 when the clamping is completed. Generally, the moving direction of the second clamping part 3 relative to the first clamping part 4 is perpendicular to the moving direction of the blocking member 6, so that a guide slope is arranged between the pushing part 7 and the blocking member 6, that is, at least one guide slope is arranged to move the blocking member 6 to move out of the slot 5 when the pushing part 7 moves synchronously with the second clamping part 3, such as the pushing part 7 is provided with a guide slope and / or the blocking member 6 is provided with a guide slope. It should be noted that the blocking member 6 moving out of the slot 5 does not require complete separation, and the first valve 1-1 of the connecting end 100 driven by the mating end 200 can be driven through the second valve 1-2 of the mating end 200 or the second valve seat 2-2 of the mating end 200, so that a small friction resistance can be allowed. That is, the above-mentioned second clamping part 3 and the pushing part 7 can be arranged on the second valve 1-2 or the second valve seat 2-2, and of course when the mating end 200 does not have the above-mentioned structure, the mating end 200 can be arranged on any position for driving the first valve 1-1.

[0042] It should be noted that after the first clamping part 4 and the docking end 200 are connected, it can be considered that the first clamping part 4 and the docking end 200 are connected at that moment. From the perspective of the docking relationship, the fluid channel on the second valve 1-2 or the second valve seat 2-2 where the pushing part 7 is located can be aligned with the fluid channel on the first valve 1-1 as a node. Before rotating to this node, the blocking part 6 is in the open slot 5 and presents a blocking state, and at this time the second clamping part 3 and the first clamping part 4 can complete the clamping. In the process of relative rotation to enter this node: the blocking part 6 is pushed by the pushing part 7 to gradually move away from the clamping slot 15, and preferably to complete the disengagement from the clamping slot 15 when reaching this node; at the same time, the second clamping part 3 and the first clamping part 4 move relatively in the direction of completing the clamping, and can complete the clamping at or before the node. From this node, the second valve 1-2 or the second valve seat 2-2 where the pushing part 7 is located continues to move, and at this time the first valve 1-1 can be pushed by the pushing part 7 in the docking end 200 and one or more of the second clamping part 3 and other structures to move in the direction of opening the communication passage 12 on the first valve seat 2-1. Of course, the first clamping part 4 and the docking end 200 can be connected before the above-mentioned node, and at this time it is not required that the fluid channel on the second valve 1-2 or the second valve seat 2-2 where the pushing part 7 is located is aligned with the fluid channel on the first valve 1-1. After completing the clamping, the first valve 1-1 can be pushed to rotate synchronously with the pushing part 7, and then after the first valve 1-1 is in an open state, the second valve 1-2 or the second valve seat 2-2 where the pushing part 7 is located continues to rotate relative to the first valve 1-1 to complete the alignment of the fluid channel on the second valve 1-2 or the second valve seat 2-2 where the pushing part 7 is located with the fluid channel on the first valve 1-1.

[0043] In some embodiments, during the mating process between the connection end 100 and the mating end 200, the connection end 100 and the mating end 200 are relatively movable, either the whole or part of the structure, so that the second clamping portion 3 and the first clamping portion 4 are clamped, and during the clamping process, the pushing portion 7 moves with the second clamping portion 3 to push the blocking member 6 to move relative to the slot 5, and after the clamping is completed (including when the clamping is completed), the pushing portion 7 is separated from the slot 5, so that when the second valve 1-2 or the second valve seat 2-2 of the mating end 200 where the pushing portion 7 is located continues to rotate, it can push the first valve 1-1 of the connection end 100 to move until the communication passage 12 of the valve seat 2 (i.e. the first valve seat 2-1) of the connection end 100 is opened. This makes the first valve 1-1 unable to rotate relative to the first valve seat 2-1 by the blocking member 6 before the clamping is completed, so as to maintain the current state and ensure that the clamping is completed first. During the clamping process, the friction force acting on the first valve 1-1 is no longer able to push the first valve 1-1 to rotate, so as to ensure that the clamping and the movement of the first valve 1-1 are sequentially completed. In summary, the connection end 100 can effectively solve the problem that the valve 1 may be opened too early when clamping is performed first.

[0044] In some embodiments, it is preferred that the first valve 1-1 is provided with a clamping groove 15, and at least one inner end of the clamping groove 15 is provided with the slot 5, one end of the clamping groove 15 facing the slot 5 forms the first clamping portion 4 to cooperate with the second clamping portion 3 on the mating end 200, and the blocking member 6 is used to abut against the pushing portion 7 on the second clamping portion 3. Of course, it is not required that all clamping grooves 15 are provided with the blocking member 6. Considering that the blocking member 6 mainly overcomes the frictional force that the first valve 1-1 may be subjected to, which is generally small, it is not necessary to provide too many blocking members 6, and only one blocking member 6 can be provided, such as only one of the clamping grooves 15 is provided with the slot 5 to correspondingly provide the blocking member 6. By providing the first clamping portion 4 at the slot 5, the second clamping portion 3 can be correspondingly provided with the pushing portion 7 to directly use the second clamping portion 3 or its related structure as the pushing portion, so that the structure is more compact and more pushing portions 7 do not need to be provided on the mating end 200. At this time, the pushing portion 7 can be provided on the second valve seat 2-2, the second valve 1-2 or the operating structure 16.

[0045] In some embodiments, the first valve 1-1 can be uniformly arranged with a plurality of clamping grooves 15 along a circumference, to correspond to a plurality of clamping hooks 14 respectively, wherein the inner side of one end of the clamping groove 15 in the circumferential direction is the first clamping part 4, and a receiving groove is formed for accommodating the hook part 14-2, to correspond to the hook part 14-2 arranged protruding in the circumferential direction. At this time, the side groove wall of the receiving groove close to the clamping groove 15 is the above-mentioned first clamping part 4, that is, the clamping shoulder is formed. At least one receiving groove is the above-mentioned slot 5, to correspond to the blocking piece 6, and at this time, the hook part 14-2 of the corresponding clamping hook 14 corresponding to the receiving groove forms the above-mentioned pushing part 7. A plurality of clamping grooves 15 are arranged circumferentially, to form a rotating clamping with the corresponding clamping hook 14, that is, the hook part 14-2 of the clamping hook 14 passes through the above-mentioned clamping groove 15 in the axial direction, enters the inner side of the clamping groove 15, and then rotates, so that the hook part 14-2 and the inner end wall of the clamping groove 15 abut to form axial abutment, thereby completing clamping. Since the hook part 14-2 protrudes circumferentially, the hook part 14-2 can first move circumferentially to complete the clamping between the hook part 14-2 and the clamping groove 15, specifically the clamping between the above-mentioned clamping shoulder.

[0046] In some embodiments, the slot 5 can be arranged at one end of the circumferential direction to align with the corresponding end of the corresponding clamping groove 15, and the other end is longer than the corresponding end of the clamping groove 15, so that the slot 5 forms the first clamping part 4 as the hook part 14-2 accommodation space when clamping. At this time, the first valve 1-1 can be rotatably installed on the first valve seat 2-1, and the rotation axis is consistent with the axis of the circumferential distribution of the clamping groove 15.

[0047] In some embodiments, the pushing part 7 can be arranged separately without the above-mentioned second clamping part 3, so that the clamping hook 14 can be arranged on the first valve 1-1, and the clamping groove can be arranged on the second valve 1-2. At this time, the pushing part 7 arranged on the second valve 1-2 can be a single column structure without the second clamping part 3, of course, the second clamping part 3 can still be arranged in this state, and the slot 5 and the clamping groove 15 can be arranged staggered in the circumferential direction around the rotation axis of the first valve 1-1.

[0048] In some embodiments, it should be noted that the connection end 100 and the counter end 200 can have the same structure, and are arranged with the pushing part 7 and the blocking piece 6 to cooperate with each other. Of course, only the blocking piece 6 can be arranged on the connection end 100, and only the pushing part 7 can be arranged on the counter end 200.

[0049] In some embodiments, the connection end 100 and the docking end 200 can have the same structure, for example, the first valve 1-1 is provided with the clamping groove 15 and the slot 5, and the first valve seat 2-1 is provided with the clamping hook 14 and the pushing part 7 arranged on the clamping hook 14. Correspondingly, the second valve 2-1 of the docking end 200 is provided with the clamping groove 15 and the slot 5, and the second valve seat 2-2 of the docking end 200 is provided with the clamping hook 14 and the pushing part 7 arranged on the clamping hook 14. In the docking state, when the second valve seat 2-2 rotates a small angle relative to the first valve seat 2-1, the second valve seat 2-2 and the first valve 1-1 are clamped by the second clamping part 3 and the first clamping part 4, and at the same time, the pushing part 7 on the second valve seat 2-2 pushes the blocking part 6 in the slot 5 of the first valve 1-1 out. Similarly, when the first valve seat 2-1 rotates a small angle relative to the second valve seat 2-2, the first valve seat 2-1 and the second valve 2-2 are clamped by the second clamping part 3 and the first clamping part 4, and at the same time, the pushing part 7 on the first valve seat 2-1 pushes the blocking part 6 in the slot 5 of the second valve 1-2 out, so that they push each other to complete clamping. Then the second valve seat 2-2 continues to rotate relative to the first valve seat 2-1, so that the second valve seat 2-2 pushes the first valve 1-1 to rotate synchronously relative to the first valve seat 2-1 to open the communication channel on the first valve seat 2-1; at the same time, the first valve seat 2-1 pushes the second valve 1-2 to rotate synchronously relative to the second valve seat 2-2 to open the communication channel on the second valve seat 2-2. In the same setting, the hook part 14-2 protrudes circumferentially from the handle part 14-1 of the clamping hook.

[0050] In some embodiments, the connection end 100 and the docking end 200 are clamped by the second clamping part 3 and the first clamping part 4: the first valve seat 2-1 and the second valve seat 2-2 can be clamped by the second clamping part 3 and the first clamping part 4, and the pushing part 7 is arranged on the second valve seat 2-2; or the first valve 1-1 and the second valve seat 2-2 can be clamped by the second clamping part 3 and the first clamping part 4, and the pushing part 7 is arranged on the second valve seat 2-2; or the first valve seat 2-1 and the second valve 1-2 can be clamped by the second clamping part 3 and the first clamping part 4, and the pushing part 7 is arranged on the second valve 1-2; or the first valve 1-1 and the second valve 1-2 can be clamped by the second clamping part 3 and the first clamping part 4, and the pushing part 7 is arranged on the second valve 1-2. As shown in the drawings, the first valve 1-1 and the second valve 1-2 are clamped by the second clamping part 3 and the first clamping part 4.

[0051] In some embodiments, considering that when the connecting end 100 and the docking end 200 are installed, relative movement between the two in the docking direction is needed to make the second clamping part 3 and the first clamping part 4 relative in the docking direction, and then the second clamping part 3 and the first clamping part 4 are active relative in the direction perpendicular to the docking direction to enter the clamping state. Therefore, the pushing part 7 also needs to be relatively moved in the clamping direction first. In order to avoid preventing the clamping shoulder from being limited on only one side, the blocking piece 6 here preferably has a groove 8 for cooperating with the end of the pushing part 7, so that the pushing part 7 enters the groove 8 in the docking direction, and the second groove wall 9 of the groove 8 in the pushing direction of the pushing part 7 forms an inclined surface, i.e. the above-mentioned guide inclined surface, so that when the pushing part 7 moves forward in the pushing direction, the pushing can make the blocking piece 6 slide out of the slot 5. Through the groove 8, the end of the pushing part 7 is avoided, so that the two peripheral side walls of the groove 8 in the pushing direction abut the two groove walls of the slot 5 to realize abutment, thereby realizing limiting. It should be noted that the pushing direction here is the movement direction of the pushing part 7 following the second valve 1-2 or the second valve seat 2-2.

[0052] In some embodiments, considering that when the connecting end 100 and the docking end 200 are docked, the first valve 1-1 of the connecting end 100 is unidirectionally stressed, the front end of the blocking piece 6 can be provided with only one protrusion without forming a groove 8, and a guide inclined surface can be provided on one side of the protrusion.

[0053] In some embodiments, considering that the pushing part 7 needs to fit the slot 5 as much as possible, so that the end of the pushing part 7 is large enough to ensure strength. Here, the pushing part 7 preferably has an avoidance inclined surface 11 on the rear side in the pushing direction, and the first groove wall 10 of the groove 8 in the pushing direction of the pushing part 7 forms an inclined surface to cooperate with the above-mentioned avoidance inclined surface 11. In the active direction of the blocking piece 6, the first groove wall 10 can be set lower than the second groove wall 9 to avoid interference when the blocking piece 6 is tilted due to the cooperation gap. Of course, in some embodiments, the first groove wall 10 can also be set higher than the second groove wall 9.

[0054] In some embodiments, the recess 8 can be formed with opposite inclined surfaces on both sides of the groove wall in the pushing direction, that is, the first groove wall 10 and the second groove wall 9 are formed with opposite inclined directions, and the inner side of the second groove wall 9 is the guiding inclined surface for abutting with the pushing part. When the pushing part 7 extends into the slot 5, that is, in the recess 8, initially, that is, when the abutting direction relative movement is completed, the avoidance inclined surface 11 and the first groove wall 10 are inclined to close or even abut, and the end of the pushing part 7 is away from or abuts with the second groove wall 9 on the front side in the pushing direction. Then, when the pushing part 7 follows the second valve 1-2 or the second valve seat 2-2 in the pushing direction, the end of the pushing part 7 pushes the second groove wall 9 on the front side in the pushing direction, so that the blocking part 6 in which the recess 8 is located slides perpendicularly to the pushing direction to gradually exit the corresponding slot 5; of course, at this time, the end of the pushing part 7 on the front side in the pushing direction can form a guiding inclined surface to abut on the front side protrusion of the recess 8 (which can be the inclined surface or the end), so as to push the blocking part 6 to slide perpendicularly to the pushing direction.

[0055] In some embodiments, when the slot 5 is arranged at the inner end of the clamping groove 15 as a containing groove of the hook part 14-2 of the clamping hook 14, the depth of the slot 5 in the axial direction is generally consistent with the corresponding direction width of the hook part 14-2 of the clamping hook 14, so that when the hook part 14-2 of the clamping hook 14 passes through the clamping groove 15 and enters the slot 5, it corresponds to entering the recess 8 at the end of the blocking part 6. With the rotation of the hook part 14-2 of the clamping hook 14, the hook part 14-2 enters the space that is staggered with the clamping groove 15 in the slot 5, that is, the extended space, at this time, the hook part 14-2 and the inclined surface of the blocking part 6 abut to gradually push out the blocking part 6.

[0056] In some embodiments, the first valve 1-1 can be rotatably installed on the first valve seat 2-1 to open and close the communication channel 12.

[0057] In some embodiments, the second clamping part 3 and the first clamping part 4 can be clamped by rotation, and the rotation axis is consistent with the rotation axis of the first valve 1-1, so that the second clamping part 3 and the first clamping part 4 are rotationally clamped, and then axially clamped.

[0058] In some embodiments, the blocking member 6 can be abutted to the valve seat 2 by the elastic device 13 to push the blocking member 6 into the slot 5 by the elastic device 13. It is considered that the groove 8 needs to be arranged to avoid the end of the pushing part 7, so the span of the blocking member 6 is relatively large in the pushing direction, and at least two elastic devices 13 can be arranged side by side in the pushing direction. Specifically, the blocking member 6 can include a block, one end of the block has two triangular blocks, and the two triangular blocks are arranged in the middle and the inclined surfaces of the two triangular blocks are oppositely arranged to form the groove 8. The block and the valve seat 2 are in sliding fit, and the two triangular blocks are respectively abutted to the far sides of the slot 5 to be abutted to the two side walls of the slot 5 to achieve limiting, that is, the profile formed by the far sides of the two triangular blocks is matched with the slot 5 to achieve sliding fit, and the cross section of the slot 5 is preferably smaller than the cross section of the block to prevent the block from entering the slot 5, thereby limiting the depth of entry.

[0059] Based on the connection end 100 of the fluid connector provided in the above-mentioned embodiments, the application further provides a fluid connector, which comprises the connection end 100 in any one of the above-mentioned embodiments and a counter-connection end 200, and the connection end 100 and the counter-connection end 200 can be connected in fit. Since the fluid connector adopts the connection end 100 in the above-mentioned embodiments, the beneficial effects of the fluid connector please refer to the above-mentioned embodiments.

[0060] In some embodiments, one of the second clamping part 3 and the first clamping part 4 in the connection end 100 can be arranged at the clamping hook 14, and the other can be arranged at the clamping groove 15, and the clamping hook 14 comprises a handle part 14-1 and a hook part 14-2 which is arranged in a protruding manner along the circumferential direction of the rotation axis of the first valve 1-1 of the connection end 100, and the protruding direction is consistent with the pushing direction, and the hook part 14-2 forms the second clamping part 3, so that the second clamping part 3 rotates in the circumferential direction to achieve rotational clamping, and the clamping groove 15 is used for clamping the clamping hook 14 in the direction of the rotation axis, and then the clamping hook 14 rotates relative to the clamping groove 15 around the rotation axis, so that the second clamping part 3 rotates to be arranged opposite to the first clamping part 4 to abut in the direction of the extension of the rotation axis to prevent separation in the counter-connection direction. Specifically, the clamping groove 15 is formed with the first clamping part 4 at the end away from the counter-connection end 200 in the groove depth direction and in front of the pushing direction, so that after the clamping hook 14 enters the clamping groove 15, the clamping hook 14 moves in the pushing direction, and the hook part 14-2 enters the end along in the groove depth direction of the clamping groove 15 away from the counter-connection end 200 to achieve abutment.

[0061] In some embodiments, the counter-connection end 200 is provided with the clamping hook 14, and the first valve 1-1 of the connection end 100 is provided with the clamping groove 15, at least one inner end of the clamping groove 15 is provided with the slot 5, and the hook part 14-2 of the clamping hook 14 arranged corresponding to the slot 5 forms the pushing part 7 of the counter-connection end 200.

[0062] In some embodiments, the second valve 1-2 of the docking end 200 is provided with a hook 14, the second valve 1-2 of the docking end 200 is rotatably installed on the second valve seat 2-2 of the docking end 200 and the rotation axis is consistent with the rotation axis of the first valve 1-1 of the connecting end 100, and the second valve seat 2-2 of the docking end 200 is provided with an operating structure 16 outside the second valve seat 2-2 for pushing the second valve 1-2 of the docking end 200 to rotate. The operating structure 16 can be a lever or a sleeve provided outside the valve seat 2, and the connecting rod passing through the second valve seat 2-2 and the second valve 1-2 are fixedly connected.

[0063] In some embodiments, a connecting end 100 of a fluid connector is provided, comprising a valve seat 2 and a first valve 1-1 rotatably opening and closing a communication passage 12 of the valve seat 2, the first valve 1-1 is provided with a plurality of hook grooves 15 arranged in sequence around the rotation axis of the first valve 1-1 and exposed on one side of the first valve seat 2-1, for the hook 14 on the docking end 200 to be inserted to form a rotary clamping. The inner side of each of the hook grooves 15 is provided with an accommodation groove, and each of the accommodation grooves is arranged in an elongated manner in the same circumferential direction around the rotation axis of the first valve 1-1 compared with the hook groove 15, so that the part of the hook 14 hook part 14-2 protruding relative to the handle part 14-1 can be rotated into the above-mentioned elongated space to abut against the wall surface formed by the elongated part, which is the first clamping part 4. The first valve seat 2-1 is provided with a blocking member 6 capable of moving in the circumferential axial direction, and in the closed state of the first valve 1-1, the blocking member 6 is pushed by the elastic device 13 to be aligned and slidingly fitted with at least one of the accommodation grooves, so that when it is inserted into the accommodation groove, the first valve 1-1 can be prevented from rotating relative to the first valve seat 2-1.

[0064] In some embodiments, a fluid connector is provided, comprising a connecting end 100 and a docking end 200, the connecting end 100 and the docking end 200 are clamped by the second clamping part 3 and the first clamping part 4, the docking end 200 has a pushing part 7, the first valve 1-1 of the connecting end 100 has a slot 5, the first valve seat 2-1 of the connecting end 100 is slidingly connected with a blocking member 6, the blocking member 6 extends into the slot 5 to prevent the first valve 1-1 of the connecting end 100 from moving relative to the first valve seat 2-1 of the connecting end 100, and the pushing part 7 pushes the blocking member 6 out of the slot 5 after the second clamping part 3 and the first clamping part 4 move relative to each other to achieve clamping connection.

[0065] In some embodiments, a connecting end 100 of a fluid connector is provided, for the convenience of description, wherein the valve 1 of the connecting end 100 is a first valve 1-1, the valve seat 2 of the connecting end 100 is a first valve seat 2-1, the first valve 1-1 is rotatably arranged in the first valve seat 2-1, and the rotation axis extends in the same direction as the docking direction, so as to open and close the communication passage 12 on the first valve seat 2-1 by rotating the first valve 1-1 relative to the first valve seat 2-1. Specifically, the first valve 1-1 has a communication hole, and when the first valve 1-1 is rotated to align the communication hole with the communication passage 12, the communication passage 12 is opened, and when the communication hole is rotated to be misaligned with the corresponding communication passage 12, the communication passage 12 is closed. The first valve 1-1 is exposed on the docking end 200, so as to at least expose the communication hole thereon.

[0066] The exposed side of the first valve 1-1 is further provided with a push rod, so that when the docking end 200 and the connecting end 100 are relatively moved to dock, the push rod can push out the positioning pin on the second valve 1-2 of the docking end 200, so that the second valve 1-2 of the docking end 200 can move relative to the second valve seat 2-2 of the docking end 200 to open and close the communication passage 12 on the second valve seat 2-2 of the docking end 200.

[0067] The exposed side of the first valve 1-1 is further provided with a clamping groove 15, generally four clamping grooves 15, and one of them is the clamping groove 15 in the above embodiment, and a corresponding blocking piece 6 is provided. The clamping groove 15 is provided to facilitate the insertion of the clamping hook 14 on the docking end 200 into the clamping groove 15, i.e. to realize rotational clamping with the clamping hook 14 on the docking end 200, wherein the axis direction of the rotational clamping is consistent with the rotation axis of the first valve 1-1. The inner side of the clamping groove 15, i.e. the side away from the connecting end 100, has a receiving groove to accommodate the hook portion 14-2 of the clamping hook 14, so as to allow the hook portion 14-2 of the clamping hook 14 to move inside until the handle portion 14-1 of the clamping hook 14 abuts against the groove wall on one side of the clamping groove 15, and the hook portion 14-2 cooperates with the groove wall on the other side of the corresponding clamping groove 15. The blocking piece 6 and the corresponding receiving groove are in sliding cooperation, for example, the two triangular protrusions of the blocking piece 6 are away from each other, and abut against the sides away from each other of the receiving groove, so as to realize sliding cooperation.

[0068] When the first valve 1-1 is rotated to the first position relative to the first valve seat 2-1, i.e., to the preset position, the first valve 1-1 closes the communication passage 12 on the first valve seat 2-1. The blocking member 6 in sliding fit with the first valve seat 2-1 along the rotation axis extends into the corresponding accommodation groove in the direction of the rotation axis under the action of the elastic device 13 and is inserted into the accommodation groove to prevent the relative rotation of the first valve 1-1 relative to the first valve seat 2-1. At this time, the unlocking pin in sliding fit with the first valve seat 2-1 along the rotation axis is aligned with the locking hole on the first valve 1-1 and can extend into the locking hole under the action of the elastic device 13 so that the top block sliding in the locking hole is in the ejecting state.

[0069] In some embodiments, a mating end 200 of a fluid connector is provided for ease of description, wherein the valve of the mating end 200 is a second valve 1-2, the valve seat of the mating end 200 is a second valve seat 2-2, the second valve 1-2 is rotationally arranged in the second valve seat 2-2, and the extension direction of the rotation axis is consistent with the mating direction, so as to open and close the communication passage 12 on the second valve seat 2-2 by rotating the second valve 1-2 relative to the second valve seat 2-2. Specifically, the second valve 1-2 has a communication hole, when the second valve 1-2 is rotated to align the communication hole with the communication passage 12 on the first valve seat 2-1, the communication passage 12 is opened, and when the communication hole is rotated to be misaligned with the corresponding communication passage 12, the communication passage 12 is closed. The second valve 1-2 is exposed on the mating end 200 to expose at least the communication hole thereon.

[0070] The exposed side of the second valve 1-2 is further provided with an exposed positioning pin in sliding fit with the second valve seat 2-2 along the extension direction of the rotation axis and inserted into the second valve 1-2 under the action of the elastic device 13 in sliding fit with the second valve 1-2 along the extension direction of the rotation axis to prevent the relative rotation of the second valve 1-2 relative to the second valve seat 2-2 when inserted into the second valve 1-2, so that the second valve 1-2 remains in the closed position. The exposed side of the second valve 1-2 has a hole for the insertion of a push rod to push out the positioning pin, and the push rod and the corresponding hole have sufficient clearance to facilitate the movement of the first valve 1-1 relative to the push rod to complete the clamping of the hook 14 and the clamping groove 15.

[0071] The exposed side of the second valve 1-2 is further provided with a hook 14, wherein the hook 14 includes a handle portion 14-1 and a hook portion 14-2, the hook portion 14-2 protrudes from the handle portion 14-1 in the circumferential direction around the rotation axis to be clamped into one end of the clamping groove 15 in the circumferential direction. Correspondingly, four hooks 14 are arranged correspondingly with the clamping groove 15.

[0072] The docking end 200 also has an operating structure 16, such as a sleeve structure, sleeved on the outside of the second valve seat 2-2, and the second valve 1-2 and the operating structure 16 are driven by a push rod, the second valve seat 2-2 has an arc-shaped slot for the push rod to move, the push rod passes through the arc-shaped slot and is connected with the second valve 1-2 and the operating structure 16 at both ends.

[0073] In some embodiments, when the docking end 200 and the connecting end 100 are docked, the docking process is mainly as follows:

[0074] Before connection, the connecting end 100 and the docking end 200 are completely separated. In the connecting end 100, the first valve 1-1 is in the closed position relative to the first valve seat 2-1, that is, the above-mentioned first position and the preset position, at this time the first valve 1-1 is in the closed state, the blocking piece 6 is clamped into the accommodating groove at the clamping groove 15 to limit the rotation of the first valve 1-1 relative to the first valve seat 2-1. And the unlocking pin extends into the locking hole to make the top block in the ejecting state. In the docking end 200, the second valve 1-2 is in the front position relative to the second valve seat 2-2, at this time the first valve 1-1 is in the closed state, and the positioning pin is inserted into the second valve 1-2 under the action of the elastic device 13, preventing the second valve 1-2 from rotating relative to the second valve seat 2-2.

[0075] When docking, first make the clamping hook 14 on the second valve 1-2 and the clamping groove 15 on the first valve 1-1 coaxially arranged and arranged in parallel in the axial direction, at this time the communication hole on the first valve 1-1 and the communication hole on the second valve 1-2 are arranged staggered. At this time, the communication channels 12 on the first valve seat 2-1 and the communication channels 12 on the second valve seat 2-2 are generally arranged in alignment. Then make the first valve 1-1 and the second valve 1-2 close to each other along the rotation axis, at this time the clamping hook 14 is inserted into the clamping groove 15, until the first valve 1-1 and the second valve 1-2 directly or indirectly abut, at this time the push rod on the first valve 1-1 pushes the positioning pin out of the second valve 1-2, at this time the second valve 1-2 is no longer prevented from rotating relative to the second valve seat 2-2, at this time it is considered that the docking is completed. At this time, the stop pin on the second valve 1-2 is constrained by the first valve 1-1 and remains in the retracted state.

[0076] In the process of clamping, after the butt joint is completed, the first valve seat 2-1 and the second valve seat 2-2 are relatively fixed, the operation structure 16 is rotated by a preset angle, and the rotating direction is consistent with the protruding direction of the hook portion 14-2 of the clamping hook 14, so that the clamping is completed. When the clamping is completed, the communication hole of the first valve 1-1 and the communication hole of the second valve 1-2 are aligned. Because the positioning pin exits the second valve 1-2, the second valve 1-2 can be rotated relative to the second valve seat 2-2, and because the first valve 1-1 and the first valve seat 2-1 are limited by the blocking piece 6, they will not be rotated relative to the second valve 1-2. With the rotation of the second valve 1-2, there is a clamping hook 14 embedded in the groove 8 of the blocking piece 6 on the second valve 1-2, and when the hook portion 14-2 of the clamping hook 14 is in contact with the side slope corresponding to the groove 8 and gradually pushes the blocking piece 6 out of the accommodating groove, i.e. the above-mentioned slot 5, when the clamping hook 14 moves with the second valve 1-2. After the second valve 1-2 is rotated by a small angle position, i.e. after the preset angle, the second valve 1-2 is relative to the second valve seat 2-2 from the above-mentioned front position to the closed position. In the closed position, the second valve 1-2 is still in the closed state, at this time: the hook portion 14-2 of the clamping hook 14 is in contact with the inner end of the clamping groove 15 to form the locking of the extending direction of the rotating axis, and the corresponding connecting end 100 and the butt joint end 200 are clamped in the axial direction; the handle portion 14-1 of the clamping hook 14 is in contact with the corresponding side angle of the clamping groove 15 on the side protruding from the hook portion 14-2; the blocking piece 6 is pushed out of the accommodating groove by the hook portion 14-2, so that it no longer interferes with the rotation of the first valve 1-1; the communication hole of the second valve 1-2 and the communication hole of the first valve 1-1 are aligned; at this time, the first valve 1-1 is still in the closed position relative to the first valve seat 2-1. At this time, the stop pin is first constrained by the first valve 1-1, and when the communication hole of the first valve 1-1 is rotated to align with the communication hole of the second valve 1-2, the stop pin is aligned with the locking hole, and because the unlocking pin is located in the locking hole, the stop pin cannot enter the locking hole to be braked under the cooperation of the top block.

[0077] In the process of opening the valve 1, the operating structure 16 is continuously driven to rotate, and the second valve 1-2 is pushed by the hook 14 to rotate the first valve 1-1. As the operating structure 16 rotates, the second valve 1-2 rotates with the first valve 1-1, and the first valve 1-1 and the second valve 1-2 are always aligned until the first valve 1-1, the first valve seat 2-1, the second valve 1-2, and the second valve seat 2-2 are all aligned. At this time, the first valve 1-1 and the second valve 1-2 are both in the open position. In the process of rotating the first valve 1-1 by the hook 14 of the second valve 1-2, the first valve 1-1 is pushed away from the above-mentioned closed position, i.e. the above-mentioned pre-set position, and the unlocking pin is moved to release the locking hole. When the first valve 1-1 and the second valve 1-2 are aligned, the locking pin is aligned with the locking hole, and under the action of the elastic device 13, the locking pin can push the top block to enter the locking hole. At this time, the first valve 1-1 and the second valve 1-2 are prevented from rotating relative to each other by the cooperation of the locking pin and the locking hole.

[0078] In some embodiments, when the docking end 200 and the connecting end 100 are separated, the separation process is mainly as follows:

[0079] Before separation, as described above, the first valve 1-1 and the second valve 1-2 are both in the open position, and the hook 14 on the second valve 1-2 abuts against the slot wall of the first valve 1-1. At this time, the first valve seat 2-1 and the second valve seat 2-2 still maintain a relatively fixed relationship, and the first valve 1-1 and the second valve 1-2 are cooperated by the locking hole and the locking pin.

[0080] In the process of closing the valve 1 by reversing the rotation, the operating structure 16 is driven to reverse the rotation to reverse the rotation of the second valve 1-2. As described above, because the locking pin is inserted into the locking hole at this time, the second valve 1-2 is reversed to rotate, and the first valve 1-1 is reversed to rotate by the cooperation of the locking pin and the locking hole.

[0081] Until the first valve 1-1 and the second valve 1-2 are synchronously rotated to the closed position, at this time, because the first valve 1-1 is moved to the closed position, i.e. the above-mentioned preset position, at this time, the unlocking pin and the locking hole are aligned, the unlocking pin is pushed out of the stop pin by the elastic device 13, i.e. by the top block, at this time, the stop pin no longer restricts the first valve 1-1. At this time, because the first valve 1-1 is moved to the preset position, at this time, the blocking piece 6 and the corresponding slot 5 are aligned, at this time, the first valve 1-1 is restricted in the closed position and cannot continue to rotate, the reason for the restriction can be that the force between the unlocking pin and the first valve 1-1, or that the first valve 1-1 and the first valve seat 2-1 are limited, the first valve 1-1 is prevented from continuing to rotate and stays in the closed position.

[0082] Then the operation structure 16 continues to drive the second valve 1-2 to rotate, because the stop pin is pushed out, the first valve 1-1 and the second valve 1-2 are no longer restricted, at this time, the first valve 1-1 remains in the closed position. With the rotation of the second valve 1-2 relative to the first valve 1-1, at this time, the hook 14 rotates relative to the first valve 1-1, the hook 14 moves to the center of the groove 8 of the blocking piece 6, the restriction of the blocking piece 6 gradually decreases, until the hook 14 rotates to the hook part 14-2 and the slot 15 are aligned, at this time, the second valve 1-2 is rotated to the front position, and the slot 5 inside the slot 15 is prevented from entering, so as to restrict the relative rotation of the first valve 1-1 and the first valve seat 2-1. At the same time, when the second valve 1-2 rotates to the front position, the positioning pin is aligned with the positioning hole on the second valve 1-2. After the second valve 1-2 rotates to the front position, the second valve 1-2 is restricted and cannot continue to rotate, at this time, the operation structure 16 cannot further drive the second valve 1-2 to rotate.

[0083] Then the first valve seat 2-1 and the second valve seat 2-2 are operated, so that the first valve seat 2-1 and the second valve seat 2-2 move relative to the rotation axis, and the corresponding first valve 1-1 and the second valve 1-2 move relative to the rotation axis, at this time, the push rod on the first valve 1-1 gradually leaves the positioning hole on the second valve 1-2, so that the positioning pin gradually enters the second valve 1-2, until the hook 14 is completely pushed out of the slot 15, at this time, the positioning pin is inserted into the positioning hole of the second valve 1-2, and the relative rotation of the second valve 1-2 and the second valve seat 2-2 is limited. Further complete the final limiting.

[0084] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between various embodiments can be referred to each other.

[0085] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting end of a fluid connector for mating with a mating end (200), characterized in that, The connecting end (100) includes a first valve (1-1) and a first valve seat (2-1). The connecting end (100) has a first locking part (4) for locking with the second locking part (3) of the docking end (200). The first valve (1-1) has a slot (5). The first valve seat (2-1) is movably connected with a blocking member (6). The blocking member (6) extends into the slot (5) to prevent the first valve (1-1) from moving relative to the first valve seat (2-1). After the first locking part (4) and the second locking part (3) are locked together, the blocking member (6) can be pushed away from the slot (5) by the pushing part (7) of the docking end (200).

2. The connection end of the fluid connector according to claim 1, characterized in that, The first valve (1-1) is provided with a slot (15) for engaging with the hook (14) of the docking end (200). At least one of the slots (15) has a slot (5) at its inner end. The end of the slot (15) facing the slot (5) forms the first locking part (4) to engage with the second locking part (3) formed on the hook (14).

3. The connection end of the fluid connector according to claim 2, characterized in that, The first valve (1-1) has a plurality of slots (15) evenly arranged along a circumference. The inner side of one end of the slot (15) in the circumferential direction is the first locking part (4), and the inner side of the slot (15) forms a receiving groove for accommodating the hook part (14-2) of the hook (14). At least one of the receiving grooves is the slot (5) to correspond to the blocking member (6).

4. The connection end of the fluid connector according to claim 3, characterized in that, The slot (5) is aligned with the corresponding end of the corresponding slot (15) along the circumferential direction at one end, and the other end is longer than the corresponding end of the corresponding slot (15), so that the bottom of the slot (5) forms the first locking part (4); the first valve (1-1) is rotatably mounted on the first valve seat (2-1) and the rotation axis is consistent with the axis of the circumference of the slot (15).

5. The connection end of the fluid connector according to claim 1, characterized in that, The blocking member (6) has a groove (8) for engaging with the end of the pushing part (7), the groove (8) having a second groove wall (9) forming an inclined surface along the pushing direction of the pushing part (7) for abutting against the pushing part (7) and being pushed out of the slot (5) when the pushing part (7) moves in the pushing direction.

6. The connection end of the fluid connector according to claim 5, characterized in that, The groove (8) forms an inclined surface on the first groove wall (10) along the pushing direction of the pushing part (7) to cooperate with the avoidance inclined surface (11) formed by the pushing part (7) on the rear side in the pushing direction.

7. The connection end of the fluid connector according to claim 5, characterized in that, The blocking member (6) abuts against the first valve seat (2-1) via the elastic device (13) so that the blocking member (6) is pushed into the slot (5) by the elastic device (13).

8. A connection end of a fluid connector, characterized in that, The device includes a first valve seat (2-1) and a first valve (1-1) that can rotatably open and close the communication channel on the first valve seat (2-1). The first valve (1-1) has a plurality of slots (15) arranged sequentially around the rotation axis of the first valve (1-1) and exposed on one side of the first valve seat (2-1). Each slot (15) has a receiving groove on its inner side. Each receiving groove is extended in the same circumferential direction around the rotation axis of the first valve (1-1) compared to the slot (15). The first valve seat (2-1) is provided with a stopper (6) that can move in the axial direction along the rotation axis. When the first valve (1-1) is closed, the stopper (6) is aligned with and slidably engaged with at least one of the receiving grooves so as to prevent the first valve (1-1) from rotating relative to the first valve seat (2-1) when it is inserted into the receiving groove.

9. A fluid connector, characterized in that, Includes a docking end (200) and a connecting end (100) as described in any one of claims 1-8, wherein the connecting end (100) and the docking end (200) are capable of being connected in a mating manner, and the docking end (200) has a pushing part (7) so that after the first locking part (4) of the connecting end (100) and the second locking part (3) of the docking end (200) are connected in a locking manner, the blocking member (6) of the connecting end (100) is pushed away from the slot (5) of the connecting end (100).

10. The fluid connector according to claim 9, characterized in that, The docking end (200) is provided with a hook (14), the hook (14) includes a handle (14-1) and a hook (14-2) that protrudes circumferentially along the rotation axis of the first valve (1-1). The hook (14-2) constitutes the second locking part (3). The first valve (1-1) is provided with a slot (15) for the hook (14) to extend into along the rotation axis. At least one of the slots (15) has a slot (5) at its inner end to accommodate the hook (14-2) of the hook (14). The hook (14) corresponding to the slot (5) is the pushing part (7) of the docking end (200). During the locking process, the pushing part (7) and the blocking member (6) abut against each other through an inclined surface that is inclined relative to the movement direction of the blocking member (6).

11. The fluid connector according to claim 10, characterized in that, The docking end includes a second valve seat (2-2) and a second valve (1-2). The second valve (1-2) is provided with the hook (14). The second valve (1-2) is rotatably mounted on the second valve seat (2-2) and the rotation axis is consistent with the rotation axis of the first valve (1-1). The outer side of the second valve seat (2-2) has an operating structure (16) for pushing the first valve (1-1) to rotate.

12. The fluid connector according to claim 11, characterized in that, During the process of the hook (14) rotating relative to the slot (15) to complete the engagement, the pushing part (7) can push the blocking member (6) to move in the direction of disengaging from the slot (5), and when the handle (14-1) of the hook moves to abut against the circumferential side wall of the slot (15), the connecting hole of the first valve (1-1) and the connecting hole of the second valve (1-2) are aligned, and the blocking member (6) completes disengagement from the slot (5).

13. A fluid connector, characterized in that, The device includes a connecting end (100) and a docking end (200), which are engaged by a second locking part (3) and a first locking part (4). The docking end (200) has a pushing part (7). The connecting end (100) includes a first valve (1-1) and a first valve seat (2-1). The first valve (1-1) has a slot (5). The first valve seat (2-1) is slidably connected to a blocking member (6). The blocking member (6) extends into the slot (5) to prevent the first valve (1-1) from moving relative to the first valve seat (2-1). When the second locking part (3) and the first locking part (4) move relative to each other to achieve engagement, the pushing part (7) pushes the blocking member (6) away from the slot (5).

Images