Fluid connector and connection end thereof

Abstract

The application discloses a connecting end of a fluid connector, which is used for mating connection with a counter connecting end. The connecting end comprises a first valve and a first valve seat. The connecting end has a first clamping part for clamping connection with a second clamping part of the counter connecting end. The first valve has a slot. The first valve seat movably connects a blocking member. The blocking member extends into the slot to prevent the first valve from moving relative to the first valve seat. After the first clamping part and the second clamping part are clamped, the blocking member is pushed out of the slot by a pushing part of the counter connecting end. This makes the first valve be prevented from rotating relative to the first valve seat by the blocking member before clamping is completed, so that the current state is maintained, and clamping is completed first. Therefore, the connecting end can effectively solve the problem that the valve may be opened in advance when clamping is performed first. The application further discloses a fluid connector comprising the connecting end.

Description

Technical Field

[0001] This invention relates to the field of fluid channel connection technology, and more specifically, to the connection end of a fluid connector, and also to a fluid connector. Background Technology

[0002] A fluid connector mainly consists of two connectors. These two connectors can have the same or different structures and are connected by mating. For ease of description, one connector is generally called the connecting end, and the other connector that mates with the connecting end is called the mating end.

[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:

[0004] When connecting the connector and the mating end, a snap-fit ​​connection is usually required, and then the valve on the opposite side is pushed to rotate together. However, long-term research has found that when performing the snap-fit ​​operation, the valve may be driven to rotate first, causing the valve to open prematurely and resulting in leakage problems. Summary of the Invention

[0005] In view of this, the first objective of the present invention is to provide a connection end of a fluid connector that can effectively solve the problem that the valve may open prematurely when the snap-fit ​​is performed first. The second objective of the present invention is to provide a fluid connector.

[0006] To achieve the first objective mentioned above, the present invention provides the following technical solution:

[0007] A fluid connector has a connecting end for mating with a docking end. The connecting end includes a first valve and a first valve seat. The connecting end has a first locking portion for engaging with a second locking portion of the docking end. The first valve has a slot. A blocking member is movably connected to the first valve seat. The blocking member extends into the slot to prevent the first valve from moving relative to the first valve seat. After the first locking portion and the second locking portion engage, the blocking member can be pushed away from the slot by a pushing portion of the docking end.

[0008] In use, during the docking process between the connecting end and the mating end, the connecting end and the mating end move relative to each other first, either as a whole or in parts, to allow the second locking part and the first locking part to engage. During this engagement, the pushing part moves along with the second locking part to push the blocking member to move relative to the slot. After the engagement is complete (including the moment of engagement), the blocking member is pushed out of the slot. This allows the valve or valve seat at the mating end, where the pushing part is located, to continue rotating, pushing the first valve at the connecting end to move until the connecting end valve seat's communication channel is opened. This prevents the first valve from rotating relative to the first valve seat before engagement is complete, maintaining its current state to ensure engagement is completed first. Furthermore, during engagement, the frictional force on the first valve is no longer sufficient to push it to rotate, ensuring that engagement and first valve movement are completed sequentially. In summary, this connecting end effectively solves the problem of the valve potentially opening prematurely during engagement.

[0009] In some technical solutions, the first valve is provided with a groove for engaging with the hook at the docking end, and at least one of the grooves has an opening at its inner end. The end of the groove facing the opening forms a first locking part to engage with a second locking part formed on the hook.

[0010] In some technical solutions, the first valve has a plurality of slots evenly arranged along a circumference, the inner side of one end of the slot along the circumferential direction is the first locking part, and the inner side of the slot forms a receiving groove for accommodating the hook part of the hook, and at least one receiving groove is the slot to correspond to the blocking member.

[0011] In some technical solutions, one end of the slot is aligned with the corresponding end of the corresponding slot along the circumferential direction, and the other end is longer than the corresponding end of the corresponding slot, so that the bottom of the slot forms the first locking part; the first valve is rotatably mounted on the first valve seat and the axis of rotation is consistent with the axis of the circumference of the slot distribution.

[0012] In some technical solutions, the blocking member has a groove for engaging with the end of the pushing part, and the second groove wall of the groove forms an inclined surface along the pushing direction of the pushing part, so as to abut against the pushing part and be pushed out of the groove when the pushing part moves in the pushing direction.

[0013] In some technical solutions, the groove forms an inclined surface along the first groove wall in the pushing direction of the pushing part, so as to cooperate with the avoidance inclined surface formed by the pushing part on the rear side in the pushing direction.

[0014] In some technical solutions, the blocking member abuts against the first valve seat via an elastic device, so as to push the blocking member into the slot by the elastic device.

[0015] To achieve the first objective mentioned above, the present invention also provides a connection end of a fluid connector. This connection end includes a first valve seat and a first valve rotatably opening and closing a communication channel on the first valve seat. The first valve has a plurality of slots arranged sequentially around the rotation axis of the first valve and exposed on one side of the first valve seat. Each slot has an inner receiving groove, and each receiving groove extends in the same circumferential direction around the rotation axis of the first valve compared to the slot. The first valve seat is provided with a blocking member that can move axially along the rotation axis. When the first valve is closed, the blocking member is aligned with and slidably engaged with at least one of the receiving grooves, so as to prevent the first valve from rotating relative to the first valve seat when extended into the receiving groove. Since the above-described connection end has the aforementioned technical effects, a connection end employing a corresponding blocking member should also have corresponding technical effects.

[0016] To achieve the second objective mentioned above, the present invention also provides a fluid connector, which includes any of the aforementioned connecting ends and a mating end. The connecting end and the mating end are capable of mating. The mating end has a pushing portion, which, after the first locking portion of the connecting end and the second locking portion of the mating end are engaged, pushes the blocking member of the connecting end away from the slot of the connecting end. Since the aforementioned connecting end has the above-mentioned technical effects, the fluid connector having this connecting end should also have corresponding technical effects.

[0017] In some technical solutions, the docking end is provided with a hook, the hook including a handle and a hook portion protruding circumferentially along the rotation axis of the first valve, the hook portion constituting the second locking portion, the first valve being provided with a slot for the hook to extend into along the rotation axis, at least one of the slots having an opening at its inner end to accommodate the hook portion of the hook, and the hook corresponding to the opening being the pushing portion of the docking end; during the locking process, the pushing portion and the blocking member abut against each other through an inclined surface that is inclined relative to the moving direction of the blocking member.

[0018] In some technical solutions, the docking end includes a second valve seat and a second valve. The second valve is provided with the hook. The second valve is rotatably mounted 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 has an operating structure for pushing the first valve to rotate.

[0019] In some technical solutions, during the process of the hook rotating relative to the slot to complete the engagement, the pushing part can push the blocking member to move in the direction of disengaging from the slot, and when the handle moves to abut against the circumferential side wall of the slot, the connecting hole of the first valve and the connecting hole of the second valve are aligned, and the blocking member completes disengagement from the slot.

[0020] To achieve the second objective mentioned above, the present invention also provides a fluid connector, which includes a connecting end and a mating end. The connecting end and the mating end are engaged via a second locking portion and a first locking portion. The mating end has a pushing portion. The connecting end includes a first valve and a first valve seat. The first valve has a slot, and a blocking member is slidably connected to the first valve seat. The blocking member extends into the slot to prevent the first valve from moving relative to the first valve seat. When the second locking portion and the first locking portion move relative to each other to achieve engagement, the pushing portion pushes the blocking member out of the slot. Since the connecting end described above has the aforementioned technical effects, the fluid connector having this connecting end should also have corresponding technical effects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an exploded structural diagram of a fluid connector provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the blocking component provided in an embodiment of the present invention;

[0024] Figure 3 A cross-sectional structural diagram of the connection end provided in an embodiment of the present invention;

[0025] Figure 4 A cross-sectional structural diagram of the docking end provided in an embodiment of the present invention;

[0026] Figure 5 A partial structural schematic diagram of the connecting end valve seat provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the connecting end valve provided in an embodiment of the present invention;

[0028] Figure 7 A schematic cross-sectional view of the fluid connector when the hook passes through the slot, as provided in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure in which the hook and slot form a rotatable connection, as provided in an embodiment of the present invention.

[0030] The following labels are used in the attached diagram:

[0031] Connection end 100; docking end 200;

[0032] First valve 1-1, second valve 1-2, first valve seat 2-1, second valve seat 2-2, second locking part 3, first locking part 4, slot 5, blocking part 6, pushing part 7, groove 8, second groove wall 9, first groove wall 10, avoidance slope 11, connecting channel 12, elastic device 13, hook 14, slot 15, operating structure 16;

[0033] Handle 14-1, Hook 14-2. Detailed Implementation

[0034] This invention discloses a connection end for a fluid connector, which can effectively solve the problem that the valve may open prematurely when the connection is made first.

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-8 , Figure 1 This is an exploded structural diagram of a fluid connector provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the blocking component provided in an embodiment of the present invention; Figure 3 A cross-sectional structural diagram of the connection end provided in an embodiment of the present invention; Figure 4 A cross-sectional structural diagram of the docking end provided in an embodiment of the present invention; Figure 5 A partial structural schematic diagram of the connecting end valve seat provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the connecting end valve provided in an embodiment of the present invention; Figure 7 A schematic cross-sectional view of the fluid connector when the hook passes through the slot, as provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure in which the hook and slot form a rotatable connection, as provided in an embodiment of the present invention.

[0037] In some embodiments, a fluid connector is provided, including at least two connectors. For ease of description, one connector is a connecting end 100, and the other connector is a mating end 200. The connecting end 100 and the mating end 200 are connected to each other so that, in the connected state, their positions are fixed and their communication channels 12 are connected.

[0038] In some embodiments, at least one connector includes a valve and a valve seat, wherein the valve is movably disposed on the valve seat to open and close the communication channel 12 on the valve seat, so that when the communication channel 12 is open, fluid can be exchanged with the communication channels 12 on other connectors, and when the communication channel 12 is closed, fluid cannot be exchanged with the connection channels on other connectors. The valve can move in a sliding, rotating, or other manner, which can be configured as needed.

[0039] In some embodiments, the mating end 200 and the connecting end 100 are engaged by the second locking part 3 and the first locking part 4. This engagement is primarily achieved by the second locking part 3 and the first locking part 4 abutting in the mating direction for locking. The engagement methods include rotational engagement and sliding engagement. Rotational engagement involves the relative rotation of the second locking part 3 and the first locking part 4, causing them to move from a staggered position to a relative position, where they abut in the mating direction. The mating direction can be a generally parallel direction between the mating end 200 and the connecting end 100, or a parallel direction between the connecting channel 12 of the mating end 200 and the connecting end 100. These two directions can be the same or different. The specific structures of the second locking part 3 and the first locking part 4 do not need to be significantly different; generally, one is the hook part 14-2 of the hook 14, and the other is the end of the groove 15 in the groove depth direction or a shoulder formed by the groove wall of the groove 15.

[0040] In some embodiments, the connecting end 100 may have a first snap-fit ​​portion 4 for snap-fit ​​connection with the mating end 200. Specifically, it may be the hook portion 14-2 of the hook 14 or the end portion of the slot 15 in the groove depth direction.

[0041] In some embodiments, if the connecting end 100 is provided with a valve and a valve seat, the mating end 200 may also be provided with a valve and a valve seat, or it may not be provided with a valve and a valve seat. For ease of distinction and description, in this context, the valve of the connecting end 100 may be referred to as the first valve 1-1, and the valve seat of the connecting end 100 may be referred to as the first valve seat 2-1. When the mating end 200 is provided with a valve and a valve seat, the valve of the mating end 200 may be referred to as the second valve 1-2, and the valve seat of the mating end 200 may be referred to as the second valve seat 2-2.

[0042] In some embodiments, the first valve 1-1 may have a slot 5, and the first valve seat 2-1 may be movably connected to a stopper 6. The stopper 6 extends into the slot 5 to prevent the first valve 1-1 from moving relative to the first valve seat 2-1, thereby keeping the first valve 1-1 in its current position, such as in a closed or closed state. Specifically, when the slot 5 and the stopper 6 are aligned, the stopper 6 can slide so that one end is inserted into the slot 5 and the other end slides into the sliding hole of the first valve seat 2-1, thereby limiting its movement in the direction perpendicular to the sliding direction. The opening direction of the first valve 1-1 relative to the first valve seat 2-1 is perpendicular to the sliding direction. By cooperating with the stopper 6 and the slot 15, when the first valve 1-1 is subjected to external force, especially frictional force at the mating end 200, the first valve 1-1 cannot move relative to the first valve seat 2-1 under the action of the stopper 6, thus remaining in its current closed position. The blocking element 6 can function as a pin, and its sliding direction can be perpendicular to the movement direction of the first valve 1-1 to better prevent the first valve 1-1 from rotating. Of course, other positions are also possible, as long as they can prevent the first valve 1-1 from rotating, such as the blocking element 6 engaging with the first valve 1-1. It should be noted that the first locking part 4 can be located at the slot 5 or at other structural locations of the first valve 1-1.

[0043] In some embodiments, after the first locking part 4 and the docking end 200 are engaged, the blocking member 6 is pushed out of the slot 5 by the pushing part 7 of the docking end 200. This pushing can be direct or indirect. That is, after the blocking member 6 extends into the slot 5, during the engagement between the docking end 200 and the connecting end 100 via the first locking part 4 and the second locking part 3, the first valve 1-1 corresponding to the connecting end 100 of the pushing part 7 is activated to push the blocking member 6 in the direction of disengagement from the slot 5. Upon completion of the engagement, the blocking member 6 disengages from the slot 5. Generally, the direction of movement of the second locking part 3 relative to the first locking part 4 is perpendicular to the direction of movement of the blocking member 6. Therefore, a guide slope can be provided between the pushing part 7 and the blocking member 6, i.e., at least one guide slope is provided, so that when the pushing part 7 moves synchronously with the second locking part 3, it pushes the blocking member 6 to move and disengage from the slot 5, such as the pushing part 7 having a guide slope and / or the blocking member 6 having a guide slope. It should be noted that the blocking member 6 is not required to completely detach from the groove 5, but only to ensure that it does not prevent the docking end 200 from driving the first valve 1-1 of the connecting end 100 to rotate. The docking end 200 can drive the first valve 1-1 through the second valve 1-2 of the docking end 200 or through the second valve seat 2-2 of the docking end 200. Therefore, a small amount of frictional resistance is permissible. That is, the second locking part 3 and the pushing part 7 can be provided on the second valve 1-2 or on the second valve seat 2-2. Of course, when the docking end 200 does not have the above structure, they can be provided at any position of the docking end 200 used to drive the first valve 1-1.

[0044] It should also be noted that after the first locking part 4 and the docking end 200 are locked together, it can be considered that the moment the first locking part 4 and the docking end 200 are locked together is the node when 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. Before rotating to this node, the blocking member 6 is in the slot 5 and is in a blocking state. At this time, the second locking part 3 and the first locking part 4 can lock together. During the relative rotation to reach this node, the blocking member 6 is pushed by the pushing part 7 to gradually move in the direction of disengaging from the slot 15, so that it can preferably disengage from the slot 15 when reaching this node. At the same time, the second locking part 3 and the first locking part 4 move relative to each other in the direction of completing the locking, and the locking can be completed at or before the node. From this point onward, the second valve 1-2 or second valve seat 2-2, where the actuating part 7 is located, continues to move. At this time, the first valve 1-1 can be moved by one or more of the actuating part 7, the second locking part 3, and other structures in the docking end 200, so as to move in the direction of opening the connecting channel 12 on the first valve seat 2-1. Of course, the locking part 4 can also be locked to the docking end 200 before the above-mentioned point. In this case, it is not required that the fluid channel on the second valve 1-2 or second valve seat 2-2, where the actuating part 7 is located, is aligned with the fluid channel on the first valve 1-1. After the locking is completed, the first valve 1-1 can be driven to rotate synchronously with the actuating part 7. Then, after the first valve 1-1 is in the open state, the second valve 1-2 or second valve seat 2-2, where the actuating 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 second valve seat 2-2, where the actuating part 7 is located, with the fluid channel on the first valve 1-1.

[0045] In some embodiments, during use, during the docking process of the connecting end 100 and the docking end 200, the connecting end 100 and the docking end 200 first move relative to each other, which may be the whole or a part of the structure moving relative to each other, so that the second locking part 3 and the first locking part 4 complete the locking. During the locking process, the pushing part 7 moves with the second locking part 3 to push the blocking part 6 to move relative to the slot 5. After the locking is completed (including the moment of locking), the pushing part 7 disengages from the slot 5. This allows the second valve 1-2 or the second valve seat 2-2 of the docking end 200 where the pushing part 7 is located to continue rotating, which can push the first valve 1-1 of the connecting end 100 to move until the connecting channel 12 of the valve seat 2 (i.e. the first valve seat 2-1) of the connecting end 100 is opened. This prevents the first valve 1-1 from rotating relative to the first valve seat 2-1 before the locking mechanism is completed, keeping it in its current state to ensure the locking is completed first. This also prevents the frictional force on the first valve 1-1 from pushing it to rotate during the locking process, ensuring that the locking and movement of the first valve 1-1 are completed sequentially. In summary, this connection end 100 effectively solves the problem of valve 1 potentially opening prematurely during the locking process.

[0046] In some embodiments, the first valve 1-1 is preferably provided with a slot 15, and at least one of the slots 15 has a slot 5 formed at its inner end. The end of the slot 15 facing the slot 5 forms a first locking part 4 to cooperate with a second locking part 3 on the docking end 200. The blocking member 6 is used to abut against a pushing part 7 formed on the second locking part 3. Of course, it is not required that all slots 15 have corresponding blocking members 6. Considering that the blocking member 6 mainly overcomes the frictional thrust that the first valve 1-1 may be subjected to, and the thrust is generally relatively small, it is not necessary to provide too many blocking members 6. Only one blocking member 6 can be provided, such as only one slot 15 has the aforementioned slot 5, and the aforementioned blocking member 6 is provided accordingly. By providing a first locking part 4 at the slot 5, the corresponding pushing part 7 can be provided with a second locking part 3, so that the second locking part 3 or its related structure can be directly used as the pushing part, making the structure more compact and avoiding the need for more pushing parts 7 on the docking end 200. At this time, the pusher 7 can be installed on the second valve seat 2-2, the second valve 1-2, or the operating structure 16.

[0047] In some embodiments, the first valve 1-1 may have a plurality of slots 15 evenly arranged along a circumference to correspond to a plurality of hooks 14. The inner side of one end of the slot 15 along the circumferential direction is a first locking portion 4, forming a receiving groove to accommodate hook portions 14-2, corresponding to the hook portions 14-2 protruding in the circumferential direction. The side wall of the receiving groove near the slot 15 is the first locking portion 4, forming a shoulder. At least one receiving groove is the slot 5, corresponding to the stopper 6. Correspondingly, the hook portion 14-2 of the hook 14 corresponding to this receiving groove forms the pushing portion 7. By circumferentially arranging a plurality of slots 15, a rotational engagement is formed with the corresponding hooks 14. That is, the hook portion 14-2 of the hook 14 passes through the slot 15 axially, enters the inner side of the slot 15, and then rotates, causing the hook portion 14-2 to abut against the inner end wall of the slot 15, forming an axial abutment, thereby completing the engagement. Because the hook 14-2 protrudes circumferentially, the hook 14-2 moves circumferentially first before it can engage with the slot 15, specifically with the aforementioned shoulder.

[0048] In some embodiments, one end of the slot 5 along the circumferential direction can be aligned with the corresponding end of the corresponding slot 15, and the other end can be longer than the corresponding end of the slot 15, so that the bottom of the slot 5 forms a first locking part 4, which serves as a receiving space for the hook part 14-2 during locking. In this case, the first valve 1-1 can be rotatably mounted on the first valve seat 2-1 with its rotation axis aligned with the axis of the circumference of the slot 15.

[0049] In some embodiments, the pushing part 7 can be provided alone without the second locking part 3. In this case, the first valve 1-1 can be provided with a hook 14, and the second valve 1-2 can be provided with a slot. In this case, the pushing part 7 provided on the second valve 1-2 can be a single cylindrical structure without the need for the second locking part 3. Of course, in this state, the second locking part 3 can still be provided. In this case, the slot 5 and the slot 15 can be staggered in the circumferential direction around the rotation axis of the first valve 1-1.

[0050] In some embodiments, it should be noted that the connecting end 100 and the mating end 200 may have the same structure, both being provided with a pushing part 7 and a blocking member 6, which are configured to cooperate with each other. Alternatively, the blocking member 6 may be provided only at the connecting end 100, and the pushing part 7 may be provided only at the mating end 200.

[0051] In some embodiments, the connecting end 100 and the mating end 200 may have the same structure. For example, the first valve 1-1 is provided with a groove 15 and a slot 5, and the first valve seat 2-1 is provided with a hook 14 and a pushing part 7 provided on the hook 14. Correspondingly, the second valve 2-1 of the mating end 200 is provided with a groove 15 and a slot 5, and the second valve seat 2-2 of the mating end 200 is provided with a hook 14 and a pushing part 7 provided on the 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 engaged through the second locking part 3 and the first locking part 4. At the same time, the pushing part 7 on the second valve seat 2-2 pushes out the blocking part 6 in the slot 5 of the first valve 1-1. Similarly, this means that 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 1-2 are engaged through the second locking part 3 and the first locking part 4. At the same time, the pushing part 7 on the first valve seat 2-1 pushes out the blocking part 6 in the slot 5 of the second valve 1-2, so that they push each other to complete the engagement. 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, thereby opening the communication channel on the first valve seat 2-1; simultaneously, the first valve seat 2-1 pushes the second valve 1-2 to rotate synchronously relative to the second valve seat 2-2, thereby opening the communication channel on the second valve seat 2-2. In the same configuration, the hook portion 14-2 protrudes circumferentially from the handle portion 14-1 of the catch hook.

[0052] In some embodiments, the connecting end 100 and the mating end 200 are engaged by the second locking part 3 and the first locking part 4: First valve seat 2-1 and second valve seat 2-2 can be engaged by the second locking part 3 and the first locking part 4, in which case the pushing part 7 is disposed on the second valve seat 2-2; first valve 1-1 and second valve seat 2-2 can be engaged by the second locking part 3 and the first locking part 4, in which case the pushing part 7 is disposed on the second valve seat 2-2; first valve seat 2-1 and second valve 1-2 can be engaged by the second locking part 3 and the first locking part 4, in which case the pushing part 7 is disposed on the second valve 1-2; first valve 1-1 and second valve 1-2 can be engaged by the second locking part 3 and the first locking part 4, in which case the pushing part 7 is disposed on the second valve 1-2. As shown in the attached figures, first valve 1-1 and second valve 1-2 are engaged by the second locking part 3 and the first locking part 4.

[0053] In some embodiments, considering that during installation of the mating end 200 and the connecting end 100, it is necessary for them to move relative to each other along the mating direction so that the second locking part 3 and the first locking part 4 are opposite each other in the mating direction, and then move relative to each other in a direction perpendicular to the mating direction to enter a locking state. Therefore, the corresponding pushing part 7 also needs to move relative to each other in the locking direction first. In order to avoid preventing the locking shoulder from being limited on only one side, it is preferable that the blocking member 6 has a groove 8 for cooperating with the end of the pushing part 7 so that the pushing part 7 enters the groove 8 along the mating direction, and the groove 8 forms a slope along the second groove wall 9 of the pushing direction of the pushing part 7, that is, the aforementioned guide slope, so that when the pushing part 7 moves forward in the pushing direction, the pushing member 6 can slide out of the slot 5. The groove 8 avoids the end of the pushing part 7 so that the outer sidewalls of the groove 8 on both sides in the pushing direction abut against the groove walls on both sides of the slot 5 to achieve abutment, thereby achieving limitation. It should be noted that the pushing direction is the direction in which the pushing part 7 follows the movement of the second valve 1-2 or the second valve seat 2-2 where it is located.

[0054] In some embodiments, considering that the connection end 100 and the docking end 200 are docked, the first valve 1-1 of the connection end 100 is subjected to unidirectional force, so that the front end of the blocking member 6 can be provided with only a protrusion, without the need to form a groove 8, and a guide slope can be provided on one side of the protrusion.

[0055] In some embodiments, considering that the pushing part 7 needs to fit the slot 5 as closely as possible to ensure sufficient end dimensions for guaranteed strength, the pushing part 7 preferably has a clearance ramp 11 on its rear side in the pushing direction. The groove 8 forms a ramp along the first groove wall 10 in the pushing direction of the pushing part 7 to accommodate the clearance ramp 11. In the direction of movement of the blocking member 6, the first groove wall 10 can be lower than the second groove wall 9 to avoid interference when the blocking member 6 tilts due to the fitting gap. Of course, in some embodiments, the first groove wall 10 can also be higher than the second groove wall 9.

[0056] In some embodiments, the groove 8 can form opposing slopes on both sides of the groove wall in the pushing direction, that is, forming a first groove wall 10 and a second groove wall 9 with opposite inclination directions. The inner surface of the second groove wall 9 is the aforementioned guiding slope for abutting against the pushing part. When the pushing part 7 extends into the slot 5, that is, is located in the groove 8, initially, that is, when the relative movement in the docking direction is completed, the avoidance slope 11 and the slope of the first groove wall 10 approach or even fit together. When the end of the pushing part 7 is at a certain distance from or abuts against the second groove wall 9 on the front side in the pushing direction, and then when the pushing part 7 moves along the pushing direction with the second valve 1-2 or the second valve seat 2-2 where it is located, 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 member 6 where the groove 8 is located slides perpendicular to the pushing direction, so as to gradually withdraw from the corresponding slot 5; of course, at this time, the guiding slope formed by the end of the pushing part 7 on the front side in the pushing direction can abut against the front protrusion of the groove 8 (which can be the aforementioned slope or end), so as to push the blocking member 6 to slide perpendicular to the pushing direction.

[0057] In some embodiments, when the slot 5 is provided at the inner end of the slot 15 to serve as a receiving groove for the hook portion 14-2 of the hook 14, the depth of the slot 5 in the axial direction is generally consistent with the width of the hook portion 14-2 in the corresponding direction. When the hook portion 14-2 of the hook 14 passes through the slot 15 and enters the slot 5, it enters the groove 8 at the end of the stopper 6. As the hook portion 14-2 of the hook 14 rotates, the hook portion 14-2 enters the space of the slot 5 that is offset from the slot 15, that is, the extended space. At this time, the hook portion 14-2 and the inclined surface of the stopper 6 abut against each other, so as to gradually push out the stopper 6.

[0058] In some embodiments, the first valve 1-1 can be rotatably mounted on the first valve seat 2-1 so as to rotatably open and close the communication channel 12.

[0059] In some embodiments, the second locking part 3 and the first locking part 4 can be locked together by rotation, and the rotation axis is consistent with the rotation axis of the first valve 1-1, so as to achieve rotational locking through the second locking part 3 and the first locking part 4, thereby achieving axial locking.

[0060] In some embodiments, the blocking member 6 can abut against the valve seat 2 via the elastic device 13, so that the elastic device 13 pushes the blocking member 6 into the slot 5. Considering the need to provide a groove 8 to avoid the end of the pushing part 7, 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 along the pushing direction. Specifically, the blocking member 6 can include a block, wherein one end of the block has two triangular blocks, which are centrally located, and the inclined surfaces of the two triangular blocks are arranged opposite each other to form the groove 8. The block and the valve seat 2 are slidably engaged, and the two triangular blocks, on opposite sides, abut against the opposite sides of the slot 5 to achieve limiting, that is, the contour formed by the opposite sides of the two triangular blocks engages with the slot 5 for slidable engagement, and preferably the cross-section of the slot 5 is smaller than the cross-section of the block to prevent the block from entering the slot 5, thereby limiting the entry depth.

[0061] Based on the connection end 100 of the fluid connector provided in the above embodiments, the present invention also provides a fluid connector, which includes any one of the connection ends 100 in the above embodiments, and further includes a mating end 200, wherein the connection end 100 and the mating end 200 can be connected in a mating manner. Since this fluid connector uses the connection end 100 in the above embodiments, the beneficial effects of this fluid connector are explained in the above embodiments.

[0062] In some embodiments, one of the second locking part 3 and the first locking part 4 may be disposed at the hook 14 and the other at the slot 15. The hook 14 includes a handle 14-1 and a hook part 14-2 that protrudes circumferentially along the rotation axis of the first valve 1-1 around the connecting end 100, and the protrusion direction is consistent with the pushing direction. The hook part 14-2 constitutes the second locking part 3, so that the second locking part 3 can rotate in the circumferential direction to achieve rotational locking. The corresponding slot 15 is used for the hook 14 to extend in the rotation axis direction. Then the hook 14 rotates relative to the slot 15 around the rotation axis, so that the second locking part 3 rotates to be disposed opposite to the first locking part 4, so as to achieve abutment in the extension direction of the rotation axis and prevent separation in the docking direction. Specifically, at the end of the slot 15 furthest from the mating end 200 in the groove depth direction, a first locking part 4 is formed on the front side in the pushing direction, so that after the hook 14 enters the slot 15, it moves along the pushing direction and the hook part 14-2 enters the end edge of the slot 15 furthest from the mating end 200 in the groove depth direction to achieve abutment.

[0063] In some embodiments, the docking end 200 may be provided with a hook 14, the first valve 1-1 of the connecting end 100 may be provided with a groove 15, at least one of the grooves 15 may have a slot 5 at its inner end, and the hook portion 14-2 of the hook 14 corresponding to the slot 5 may form a pushing portion 7 of the docking end 200.

[0064] In some embodiments, the second valve 1-2 of the docking end 200 may be provided with a hook 14, and the second valve 1-2 of the docking end 200 may be rotatably mounted on the second valve seat 2-2 of the docking end 200 with its rotation axis aligned with the rotation axis of the first valve 1-1 of the connecting end 100. Furthermore, the outer side of the second valve seat 2-2 of the docking end 200 may have an operating structure 16 for pushing the second valve 1-2 of the docking end 200 to rotate. The operating structure 16 may be a lever or a sleeve fitted onto the outer side of the valve seat 2, and is fixedly connected to the second valve 1-2 via a connecting rod passing through the second valve seat 2-2.

[0065] In some embodiments, a fluid connector connection end 100 includes a valve seat 2 and a first valve 1-1 rotatably opening and closing the communication channel 12 of the valve seat 2. 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 for insertion of hooks 14 on the mating end 200 to form a rotational snap-fit. Each slot 15 has a receiving groove on its inner side. Each receiving groove extends in the same circumferential direction around the rotation axis of the first valve 1-1 as the slot 15, so that the hook portion 14-2 of the hook 14 protruding relative to the handle portion 14-1 can rotate into the extended space to abut against the wall formed by the extended portion. At this time, the wall formed by the extended portion is the first locking portion 4. The first valve seat 2-1 is provided with a blocking member 6 that can move along the circumferential axial direction. When the first valve 1-1 is closed, the blocking member 6 is pushed by the elastic device 13 to align with and slide with at least one of the receiving grooves so that when it is inserted into the receiving groove, it can prevent the first valve 1-1 from rotating relative to the first valve seat 2-1.

[0066] In some embodiments, a fluid connector is provided, including a connecting end 100 and a mating end 200. The connecting end 100 and the mating end 200 are engaged by a second locking part 3 and a first locking part 4. The mating 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 slidably connected to 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. After the second locking part 3 and the first locking part 4 move relative to each other to achieve the engagement, the pushing part 7 pushes the blocking member 6 away from the slot 5.

[0067] In some embodiments, a connection end 100 of a fluid connector is provided. For ease of description, the valve 1 of the connection end 100 is a first valve 1-1, and the valve seat 2 of the connection end 100 is a first valve seat 2-1. The first valve 1-1 is rotatably disposed on the first valve seat 2-1, and the direction of its rotation axis is consistent with the docking direction. The first valve 1-1 rotates relative to the first valve seat 2-1 to open and close the communication channel 12 on the first valve seat 2-1. Specifically, the first valve 1-1 has a communication hole. When the first valve 1-1 rotates until the communication hole and the communication channel 12 are aligned, the communication channel 12 is opened. When the communication hole rotates to a position where it is misaligned with the corresponding communication channel 12, the communication channel 12 is closed. The first valve 1-1 is exposed on the docking end 200 surface, at least exposing its communication hole.

[0068] A push rod is also provided on the exposed side of the first valve 1-1. When the docking end 200 and the connecting end 100 move relative to each other 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 connecting channel 12 on the second valve seat 2-2 of the docking end 200.

[0069] The exposed side of the first valve 1-1 is also provided with a slot 15, generally four slots 15 are provided, and one of them is the slot 15 in the above embodiment, with a corresponding stopper 6 provided. The slot 15 is provided to facilitate the insertion of the hook 14 on the docking end 200 into the slot 15, that is, to achieve rotational engagement with the hook 14 on the docking end 200, wherein the axis of rotational engagement is consistent with the rotation axis of the first valve 1-1. The inner side of the slot 15, that is, the side away from the connecting end 100, has a receiving groove to accommodate the hook portion 14-2 of the hook 14, allowing the hook portion 14-2 of the hook 14 to move inside it until the handle portion 14-1 of the hook 14 abuts against one side of the groove wall of the slot 15, and at the same time the hook portion 14-2 cooperates with one side of the groove wall of the corresponding end of the slot 15. The blocking component 6 slides into the corresponding receiving groove. For example, the two triangular protrusions of the blocking component 6, on opposite sides, abut against the opposite sides of the receiving groove to achieve a sliding fit.

[0070] When the first valve 1-1 rotates relative to the first valve seat 2-1 until they are offset from each other, i.e., when it rotates to the first position (i.e., the preset position), the first valve 1-1 closes the communication channel 12 on the first valve seat 2-1. The blocking member 6, which slides along the rotation axis of the first valve seat 2-1, extends into the corresponding receiving groove under the action of the elastic device 13, inserting itself into the receiving groove along the rotation axis to prevent the first valve 1-1 from rotating relative to the first valve seat 2-1. At this time, the unlocking pin, which slides along the rotation axis of the first valve seat 2-1, aligns 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 sliding top block inside the locking hole is in the ejected state.

[0071] In some embodiments, a mating end 200 of a fluid connector is provided. For ease of description, the valve of the mating end 200 is a second valve 1-2, and the valve seat of the mating end 200 is a second valve seat 2-2. The second valve 1-2 is rotatably disposed on the second valve seat 2-2, and the direction of its rotation axis is consistent with the mating direction. The second valve 1-2 rotates relative to the second valve seat 2-2 to open and close the communication channel 12 on the second valve seat 2-2. Specifically, the second valve 1-2 has a communication hole. When the second valve 1-2 rotates until the communication hole aligns with the communication channel 12 on the first valve seat 2-1, the communication channel 12 is opened. When the communication hole rotates to a position where it is misaligned with the corresponding communication channel 12, the communication channel 12 is closed. The second valve 1-2 is exposed on the mating end 200 surface, at least exposing its communication hole.

[0072] The exposed side of the second valve 1-2 is also provided with an exposed positioning pin. The positioning pin slides with the second valve seat 2-2 along the direction of rotation and is inserted into the second valve 1-2 under the action of the elastic device 13. It slides with the second valve 1-2 along the direction of rotation to prevent the second valve 1-2 from rotating relative to the second valve seat 2-2 when inserted into the second valve 1-2, so that the second valve 1-2 is kept in the closed position. The exposed side of the second valve 1-2 has a hole for inserting a push rod to push out the positioning pin. There is sufficient clearance between the push rod and the corresponding hole to facilitate the movement of the first valve 1-1 relative to the push rod to complete the engagement of the hook 14 and the slot 15.

[0073] A latch 14 is also provided on the exposed side of the second valve 1-2, wherein the latch 14 includes a handle 14-1 and a hook 14-2. The hook 14-2 protrudes from the handle 14-1 in the circumferential direction around the axis of rotation so as to engage with one end of the latch 15 in the circumferential direction. Corresponding to the latch 15, four latches 14 are provided.

[0074] The docking end 200 also has an operating structure 16, such as a sleeve structure, which is sleeved on the outside of the second valve seat 2-2. The second valve 1-2 and the operating structure 16 are driven by a lever. The second valve seat 2-2 has an arc-shaped groove for the lever to move. The lever passes through the arc-shaped groove and its two ends are respectively connected to the second valve 1-2 and the operating structure 16.

[0075] In some embodiments, the docking process of docking end 200 and connecting end 100 is mainly as follows:

[0076] Before connection, the connecting end 100 and the mating 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, i.e., the aforementioned first position and preset position. At this time, the first valve 1-1 is in the closed state, and the blocking member 6 is engaged in the receiving groove at the slot 15 to restrict the rotation of the first valve 1-1 relative to the first valve seat 2-1. The unlocking pin extends into the locking hole so that the top block is in the ejected state. In the mating end 200, the second valve 1-2 is in the forward 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.

[0077] During docking, first align the hook 14 on the second valve 1-2 and the groove 15 on the first valve 1-1, ensuring they are coaxial and side-by-side along the axis. At this point, the connecting holes on the first valve 1-1 and the second valve 1-2 are staggered. The connecting channels 12 on the first valve seat 2-1 and the second valve seat 2-2 are generally aligned. Then, bring the first valve 1-1 and the second valve 1-2 closer together along the rotation axis. The hook 14 is then inserted into the groove 15 until the first valve 1-1 and the second valve 1-2 directly or indirectly abut against each other. At this point, the push rod on the first valve 1-1 pushes the positioning pin out of the second valve 1-2, and the second valve 1-2 is no longer prevented from rotating relative to the second valve seat 2-2. This completes the docking. The stop pin on the second valve 1-2 is then constrained by the first valve 1-1 and remains retracted.

[0078] During the snap-fit ​​process, after the docking is completed, the first valve seat 2-1 and the second valve seat 2-2 are fixed relative to each other. The operating structure 16 is rotated by a preset angle, and the direction of rotation is consistent with the protruding direction of the hook 14-2 of the snap-fit ​​to complete the snap-fit. When the snap-fit ​​is completed, the connecting holes of the first valve 1-1 and the second valve 1-2 are aligned. Because the positioning pin is disengaged from the second valve 1-2, the second valve 1-2 can rotate relative to the second valve seat 2-2. However, because the first valve 1-1 and the first valve seat 2-1 are limited by the blocking member 6, they will not rotate relative to the second valve 1-2. As the second valve 1-2 rotates, a snap-fit ​​14 on the second valve 1-2 is embedded in the groove 8 of the blocking member 6. When the snap-fit ​​14 moves with the second valve 1-2, the hook 14-2 abuts against the inclined surface of the corresponding side of the groove 8, and gradually pushes the blocking member 6 out of the receiving groove, i.e., the aforementioned slot 5. After the second valve 1-2 rotates to a small angle position, i.e., after a preset angle, the second valve 1-2 moves from the aforementioned pre-position to the closed position relative to the second valve seat 2-2. In the closed position, the second valve 1-2 remains closed. At this time: the hook portion 14-2 of the hook 14 abuts against the inner end of the groove 15 to form a lock in the direction of rotation axis extension, correspondingly completing the locking of the connecting end 100 and the mating end 200 in the axial direction; the handle portion 14-1 of the hook 14 abuts against the corresponding side of the groove 15 on the protruding side of the hook portion 14-2; the blocking member 6 is pushed by the hook portion 14-2 to exit the receiving groove, so as not to interfere with the rotation of the first valve 1-1; the connecting hole of the second valve 1-2 is aligned with the connecting hole of the first valve 1-1; at this time, the first valve 1-1 remains closed relative to the first valve seat 2-1. At this time, the stop pin is first constrained by the first valve 1-1. When the connecting hole of the first valve 1-1 is rotated to align with the connecting hole of the second valve 1-2, the stop pin is aligned with the locking hole. Since the unlocking pin is located in the locking hole, the stop pin cannot enter the locking hole for braking with the cooperation of the top block.

[0079] During the opening of valve 1, the operating structure 16 continues to rotate. Since the handle 14-1 of the hook 14 abuts against the corresponding side of the groove wall of the slot 15 on the side protruding from the hook 14-2, the second valve 1-2 generates a pushing force on the first valve 1-1 through the hook 14. As the operating structure 16 rotates, the second valve 1-2 follows suit and rotates. The rotation of the second valve 1-2 drives the first valve 1-1 to rotate synchronously. At this time, the connecting holes of the first valve 1-1 and the second valve 1-2 remain aligned until they rotate synchronously until the connecting hole of the first valve 1-1, the connecting channel 12 of the first valve seat 2-1, the connecting hole of the second valve 1-2, and the connecting channel 12 of the second valve seat 2-2 are all aligned. At this time, both the first valve 1-1 and the second valve 1-2 are in the open position. During the process of the second valve 1-2 pushing the first valve 1-1 to rotate through the hook 14-2 of the latch 14, the first valve 1-1 leaves the aforementioned closed position, that is, leaves the aforementioned preset position. During this process, it will push the unlocking pin to move to make room for the locking hole. Since the stop pin is aligned with the locking hole when the connecting hole of the first valve 1-1 and the second valve 1-2 is aligned, and under the action of the elastic device 13, since the locking hole is no longer constrained by the unlocking pin, the stop pin can push the top block to move so as to enter the locking hole. At this time, the first valve 1-1 and the second valve 1-2 prevent each other from rotating relative to each other through the cooperation of the stop pin and the locking hole.

[0080] In some embodiments, the separation process of the mating end 200 and the connecting end 100 is mainly as follows:

[0081] Before disassembly, as mentioned above, both the first valve 1-1 and the second valve 1-2 are in the open position, and the hook 14 on the second valve 1-2 abuts against the groove wall of the first valve 1-1 on the side with the hook portion 14-2. 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 connected by the locking hole and the stop pin.

[0082] During the process of reversing the rotation to close valve 1, the operating structure 16 is then driven to rotate in the reverse direction, thereby causing the second valve 1-2 to rotate in the reverse direction. As mentioned above, since the stop pin remains inserted in the locking hole at this time, when the second valve 1-2 rotates in the reverse direction, the first valve 1-1 is driven to rotate in the reverse direction by means of the cooperation between the stop pin and the locking hole.

[0083] Until the first valve 1-1 and the second valve 1-2 rotate synchronously to the closed position, the first valve 1-1 moves to the closed position, i.e., the preset position mentioned above. At this time, the unlocking pin and the locking hole are aligned. Under the action of the elastic device 13, the unlocking pin overcomes the elastic force of the elastic device 13 on the back of the stop pin, i.e., it pushes out the stop pin through the top block. At this time, the stop pin no longer constrains the first valve 1-1. At this time, since the first valve 1-1 moves to the preset position, the blocking member 6 and the corresponding slot 5 are aligned. The first valve 1-1 is now constrained to the closed position and cannot continue to rotate. The reason for being constrained may be due to the force between the unlocking pin and the first valve 1-1, or it may be due to the limiting relationship between the first valve 1-1 and the first valve seat 2-1. The first valve 1-1 is prevented from continuing to rotate and remains in the closed position.

[0084] Then, the operating structure 16 continues to drive the second valve 1-2 to rotate. Since the stop pin is pushed out, the first valve 1-1 and the second valve 1-2 are no longer constrained, and the first valve 1-1 remains in the closed position. As the second valve 1-2 rotates relative to the first valve 1-1, the hook 14 rotates correspondingly relative to the first valve 1-1, moving towards the center of the groove 8 of the stopper 6. The constraint on the stopper 6 gradually decreases until the hook 14 rotates until the hook portion 14-2 aligns with the groove 15. At this point, the second valve 1-2 rotates to the forward position, preventing it from entering the slot 5 inside the groove 15, thus constraining the relative rotation of the first valve 1-1 and the first valve seat 2-1. Simultaneously, when the second valve 1-2 rotates to the forward position, the positioning pin aligns with the positioning hole on the second valve 1-2. After the second valve 1-2 rotates to the forward position, it is constrained and cannot continue to rotate; at this point, the operating structure 16 cannot further drive the second valve 1-2 to rotate.

[0085] Then, the first valve seat 2-1 and the second valve seat 2-2 are operated, causing them to move relative to each other along the rotation axis. Correspondingly, the first valve 1-1 and the second valve 1-2 move relative to each other along the rotation axis. At this time, the push rod on the first valve 1-1 gradually moves out of the positioning hole on the second valve 1-2, allowing the positioning pin to gradually enter the second valve 1-2 until the catch hook 14 is completely pushed out of the catch groove 15. At this point, the positioning pin is inserted into the positioning hole of the second valve 1-2, limiting the relative rotation of the second valve 1-2 and the second valve seat 2-2. This completes the final limiting.

[0086] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0087] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

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

3. The connecting end of a 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 connecting end of a fluid connector according to claim 3, wherein 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 connecting end of a fluid connector according to claim 1, wherein The blocking member (6) has a groove (8) for engaging with the end of the pushing part (7), the groove (8) forming a slope on the second groove wall (9) along the pushing direction of the pushing part (7) so as to abut against the pushing part (7) and be 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 as to push the blocking member (6) into the slot (5) via 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 cooperative 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). The connecting end (100) and the docking end (200) 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).

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