Fluid connector and connecting end thereof

Abstract

The connecting end of the fluid connector comprises a valve seat, a valve and a locking pin, the valve seat is used for being connected with a butt joint end in a rotating mode, and when the valve seat rotates, the valve can move relative to the valve seat so that opening and closing can be achieved; the locking pin comprises a pin body and an operation part, the pin body can prevent the valve from moving relative to the valve seat when moving to a limiting state in the axial direction, the operation part is arranged in an exposed mode and can drive the pin body to move to be separated from the limiting state, and the valve seat is provided with a rotating operation face used for applying torque to the valve seat. The locking mechanism is characterized in that an operation part corresponding to the locking pin is arranged on the rotating operation surface, and when the operation part is pressed in the direction opposite to the rotating operation surface, the pin body can move to be separated from the limiting state. The connecting end of the fluid connector can effectively solve the problem that an existing fluid connector is inconvenient to use. The utility model further discloses a fluid connector comprising the connecting end.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid channel connection, and more specifically, to a connecting end of a fluid connector, and also to a fluid connector comprising the connecting end. Background Art

[0002] The liquid cooling system usually includes pipes and connectors, and the pipes are connected by connectors. For liquid cooling systems used in servers or other systems that require high leak-proof effects, the connectors usually consist of two connecting ends that are connected by docking. For convenience, one of the two connecting ends is called a male end and the other is called a female end. The male end and the female end respectively include a valve seat and a valve. When the male end and the female end are disconnected, the valve needs to close the channel in the valve seat to prevent liquid leakage in the pipeline. When the two connecting ends are docked, a rotating connection is formed between the valve seats, which is generally a rotating clamping connection, and both connecting ends have a pushing portion to extend into the valve of the other connecting end, so that when the two valve seats rotate relative to each other to connect or disassemble the connection, the valve is pushed relative to the valve seat belonging to the same connecting end to move so that the valve closes the flow channel on the valve seat.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the valve of the existing connection end is locked by a spring pin in the closed state, and the side of the spring pin has an operating part, which can push the operating part axially to push the spring pin out of the valve. When the two connection ends are disassembled, it is necessary to manually apply axial thrust to the operating part of the spring pin to overcome the elastic force of the spring pin, so that the spring pin is separated from the valve, and at the same time, torque is applied to the valve seat of the connection end to rotate relative to the valve seat of the other connection end. This operation requires the hand to apply force in two places, which is very inconvenient to operate, especially in a narrow space, where the hand needs to be inserted into the narrow space for operation, which significantly increases the difficulty of operation. Utility Model Content

[0004] In view of this, the first object of the utility model is to provide a connecting end of a fluid connector, which can effectively solve the problem of inconvenient operation of the connecting end of the existing fluid connector. The second object of the utility model is to provide a fluid connector including the above-mentioned connecting end.

[0005] In order to achieve the above first purpose, the utility model provides the following technical solutions:

[0006] A connecting end of a fluid connector comprises a valve seat, a valve and a locking pin, wherein the valve seat is used for rotationally connecting with the docking end and can make the valve move relative to the valve seat to achieve opening and closing when rotating; the locking pin comprises a pin body and an operating part, and when the pin body moves axially to a restricted state, it can prevent the valve from moving relative to the valve seat, the operating part is exposed and can drive the pin body to move out of the restricted state, and a rotating operating surface for applying torque to the valve seat is provided on the valve seat; the operating part corresponding to the locking pin is provided on the rotating operating surface, and when the operating part is pressed in the direction opposite to the rotating operating surface, the pin body can be moved to leave the restricted state.

[0007] When the above-mentioned connection end is used, the pin body of the connection end is in a restricted state, and the valve seat of the connection end needs to be rotated relative to the docking end. At this time, the valve cannot rotate with the valve seat because it is constrained by the docking end. Then the operator can directly operate the rotating operating surface to apply torque, because when applying torque, the fingertips will press on the rotating operating surface, and because there is an operating part on the rotating operating surface, so that during the torque application process, the operating part will be correspondingly pressed, and after the operating part is pressed, the pin body can be moved to escape the restricted state. At this time, the current operating posture is maintained, that is, the torque is kept applied to the rotating operating surface. Then, after the pin body escapes the restricted state, the valve seat can be driven to rotate, and the valve is constrained by other structures not to rotate with the valve seat, so that it moves relative to the valve seat to open and close the connecting channel on the valve seat. It is found that when applying torque to the rotating operating surface, since the operating part of the locking pin is also set on the operating surface, the operating part can also be subjected to pressure, so that the pin body can escape the restricted state, while keeping the force unchanged, and then the valve seat will rotate accordingly, so that when docking or disassembling with the docking end, the valve is restricted to rotate relative to the valve seat to achieve opening and closing. In a normal state, due to the presence of the locking pin, the valve will not rotate arbitrarily relative to the valve seat, which can ensure stable use. In summary, the connection end of the fluid connector can effectively solve the problem of inconvenient operation of the connection end of the current fluid connector.

[0008] In some technical solutions, a first elastic device is also included; the operating part is slidably connected to the valve seat and the sliding direction is perpendicular to the sliding direction of the pin body; the operating part and the pin body are abutted against each other by an inclined surface, so that when the operating part moves in the direction opposite to the rotating operating surface, the pin body is pushed to slide so that the pin body is released from the restricted state; the first elastic device is used to prevent the pin body from being released from the restricted state.

[0009] In some technical solutions, a second elastic device is further included, the second elastic device abuts against the operating part to prevent the operating part from moving in the direction opposite to the rotating operating surface; the first elastic device abuts against the pin body.

[0010] In some technical solutions, the pin body and the operating portion are both provided with the inclined surfaces for abutment against each other.

[0011] In some technical schemes, the inclined surface of the operating part is a first inclined surface, and the inclined surface on the pin body is a second inclined surface; the operating part has a first limiting surface connected to the rear edge of the first inclined surface; the pin body has a second limiting surface connected to the front edge of the second inclined surface; the first limiting surface and the second limiting surface are both perpendicular to the moving direction of the pin body; when the operating part moves to the point where the first limiting surface and the second limiting surface are against each other, the pin body is in the restricted state; when the operating part moves to the point where the first inclined surface and the second inclined surface are against each other, the pin body is in the state of being out of the restricted state.

[0012] In some technical solutions, one end of the operating part has a U-shaped clamping part to clamp on both sides of the pin body, and the clamping feet at both ends of the U-shaped clamping part have the first inclined surface and the first limiting surface, and the corresponding side of the pin body is provided with the second inclined surface and the second limiting surface.

[0013] In some technical schemes, an avoidance groove body is opened on the side of the pin body, and the extension direction is perpendicular to the movement direction of the pin body. The avoidance groove body and the clamping foot are arranged in coordination with each other. The rear side groove wall of the avoidance groove body is the second limiting surface, and the second limiting surface is expanded backward on the groove side to form the second inclined surface.

[0014] In some technical solutions, a connecting head for connecting a pipeline and a mounting portion for installing the locking pin are provided on one side of the valve seat. The mounting portion and the connecting head are respectively located on both radial sides of the valve seat rotation axis and are combined into a long strip structure, and the side of the long strip structure forms the rotating operating surface.

[0015] In some technical schemes, the valve seat includes a valve body and a valve cover, the valve body has the connecting head at one end and the valve cover at the other end, a rotatable valve is arranged between the valve cover and the valve body; the valve is provided with a connecting hole, and the valve body is provided with a connecting channel; when the valve is rotated to an open state, the connecting hole is aligned with the connecting channel; when the valve is rotated to a closed state, the connecting hole and the connecting channel are staggered so that the valve closes the connecting channel; on a side surface of the valve body away from the valve cover, a clamping portion and a clamping groove are provided, so that the clamping portion can be rotatably clamped with the clamping groove of the docking end and used to push the valve at the docking end to rotate; the mounting portion and the connecting head are combined into an integrated boss structure, and the boss structure protrudes from the side of the valve body away from the valve cover.

[0016] In order to achieve the second objective, the present invention further provides a fluid connector, which includes two connection ends, at least one of which is any of the above connection ends. Since the above connection ends have the above technical effects, the fluid connector having the connection ends should also have corresponding technical effects.

[0017] In order to achieve the second purpose mentioned above, the utility model also provides a fluid connector, including two connecting ends, the connecting seats of the two connecting ends are rotatably connected, and at least one connecting seat is provided with a locking pin to prevent the two connecting ends from rotating relative to each other when the two connecting ends can be axially moved to a restricted state; the locking pin is correspondingly provided with an operating part, and the operating direction of the operating part to operate the pin body to retract is consistent with the force direction of the operating end to rotate, and the position is the same. The operating part of the fluid connector is set in the same way as the operating part of the connecting end in the above embodiment. Since the above connecting end has the above technical effect, the fluid connector should also have the corresponding technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a connecting end of a fluid connector provided in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the end surface structure of the connecting end of the fluid connector provided by an embodiment of the utility model;

[0021] Figure 3 A schematic cross-sectional structure diagram of a connecting end of a fluid connector provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the installation and matching of the locking pin of the fluid connector provided by the embodiment of the utility model in the restricted state;

[0023] Figure 5 A schematic diagram of the locking pin structure in a retracted state provided by an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the structure of a pin body provided in an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of the structure of the operating portion in the sliding direction of the pin body provided by an embodiment of the utility model;

[0026] Figure 8 A schematic diagram of the structure of the operating unit provided by an embodiment of the utility model;

[0027] Fig. 9 A schematic diagram of the docking of the connector provided in an embodiment of the utility model.

[0028] The following are marked in the accompanying drawings:

[0029] Connecting end 100, butting end 200;

[0030] Valve seat 1, valve 2, locking pin 3;

[0031] Rotating operating surface 1-1, mounting portion 1-2, connecting head 1-3, valve body 1-4, valve cover 1-5, connecting channel 1-6, clamping portion 1-7, clamping groove 1-8, integrated boss structure 1-9;

[0032] Communication hole 2-1, pin hole 2-2;

[0033] Pin body 3-1, operating part 3-2, first elastic device 3-3, second elastic device 3-4, first inclined surface 3-5, second inclined surface 3-6, first limiting surface 3-7, second limiting surface 3-8, avoidance groove body 3-11, and clamping foot 3-21. DETAILED DESCRIPTION

[0034] The embodiment of the utility model discloses a connecting end of a fluid connector, so as to effectively solve the problem that the connecting end of the fluid connector is inconvenient to operate.

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-Figure 2 , Figure 1 A schematic structural diagram of a connecting end of a fluid connector provided in an embodiment of the utility model; Figure 2 A schematic diagram of the end surface structure of the connecting end of the fluid connector provided by an embodiment of the utility model; Figure 3 A schematic cross-sectional structure diagram of a connecting end of a fluid connector provided in an embodiment of the utility model; Figure 4 A schematic diagram of the installation and matching of the locking pin of the fluid connector provided by the embodiment of the utility model in the restricted state; Figure 5 A schematic diagram of the locking pin structure in a retracted state provided by an embodiment of the utility model; Figure 6A schematic diagram of the structure of a pin body provided in an embodiment of the utility model; Figure 7 A schematic diagram of the structure of the operating portion in the sliding direction of the pin body provided by an embodiment of the utility model; Figure 8 A schematic diagram of the structure of an operating unit provided in an embodiment of the utility model.

[0037] In some embodiments, a connection end 100 of a fluid connector is provided, which is used for rotational connection with a docking end 200, mainly the valve seat 1 of the connection end 100 is used for rotational connection with the docking end 200, which can be rotationally connected with the valve seat 1 or other structures of the docking end 200. A locking pin 3 is provided on the connection end 100, and its pin body 3-1 can extend and retract along the rotation axis direction of the valve seat 1, so as to prevent the valve seat 1 from rotating relative to the docking end 200 in a restricted state, which can be directly or indirectly prevented. When manually operated, the operating part 3-2 corresponding to the locking pin 3, the operating direction of the operating pin body 3-1 to retract is consistent with the force direction of the operating valve seat 1 rotation, and the position is the same. When the above-mentioned connecting end 100 and the docking end 200 are disassembled and / or the valve 2 is driven to move relative to the valve seat 1 to open and close, there is an operating part 3-2 of the locking pin 3 at the position where the torque is applied to the valve seat 1. Since the force is applied in the same direction, the operating part 3-2 is also subjected to the operating force to make the pin body 3-1 retract; since the pin body 3-1 retracts, and then the torque continues to be applied to the valve seat 1, the valve seat 1 rotates relative to the docking end 200 to open, and the above-mentioned operating direction is simple and convenient to operate.

[0038] In some embodiments, the fluid connector provided in the context may include two mating connection ends 100, and the structures of the two connection ends 100 may be completely the same or may have different adaptability; for example, a locking pin 3 may be provided on only one connection end 100. For the convenience of description, one of the connection ends 100 may be a docking end 200, and a locking pin 3 may or may not be provided for distinguishing descriptions, and the locking pin 3 may prevent the two connection ends 100 from rotating relative to each other when the axial movement reaches a restricted state.

[0039] In some embodiments, at least one of the connection ends 100 mainly includes a valve seat 1 and a valve 2, wherein the valve 2 is movable relative to the valve seat 1 to achieve opening and closing. Specifically, the valve 2 can move between closing the connecting channel 1-6 of the valve seat 1 and opening the connecting channel 1-6. Generally speaking, the valve 2 can enter and exit the closed position and the open position by rotation or translation, wherein the rotation can be, for example, rotation around an axis extending along the docking direction of the connection end 100, or rotation around an axis perpendicular to the docking direction of the connection end 100, and there is no requirement for the movable form of the valve 2. In the closed position, the physical part of the valve 2 is blocked at one end or the middle of the connecting channel 1-6, so that the fluid cannot flow from one end of the connecting channel 1-6 to the other end; while in the open position, that is, the connecting channel 1-6 is opened and no longer blocked, at which time the fluid can flow from one end of the connecting channel 1-6 to the other end and flow out.

[0040] The valve seat 1 is used to be rotatably connected with the docking end 200 and can push the valve 2 to move to achieve opening and closing when rotating. Generally, the locking pin 3 needs to prevent the movement of the valve 2 when the valve 2 is in a closed state. Specifically, in order to achieve the movement of the valve 2 relative to the valve seat 1, the pushing part of the docking end 200 can be used, so that when the plug-in is realized, the pushing part and the valve 2 are in abutment relationship, so that when the valve seat 1 rotates, the valve 2 is pushed by the pushing part of the docking end 200, and cannot rotate synchronously with the valve seat 1, but moves relative to the valve seat 1 to achieve opening or closing. If the pushing part is inserted into the pushing groove of the valve 2 to clamp the valve 2, when the valve seat 1 rotates relative to the pushing part, the valve 2 and the pushing part maintain the relative position unchanged, then the valve 2 will rotate relative to the valve seat 1. The rotating connection can be a rotary clamping connection or a threaded connection. Specifically, it can be set accordingly as needed.

[0041] The valve seat 1 is provided with a locking pin 3, which mainly includes a pin body 3-1 and an operating part 3-2 capable of driving the pin body 3-1 to move, wherein the pin body 3-1 can prevent the valve 2 from moving relative to the valve seat 1 when it moves axially to a restricted state, and can directly or indirectly prevent the valve 2 from moving relative to the valve seat 1, wherein the valve 2 is indirectly prevented from sliding relative to the valve seat 1, such as by preventing the valve seat 1 from rotating relative to the docking end 200, when the valve 2 is stuck by the pushing part of the docking end 200, the valve 2 is indirectly prevented from rotating relative to the valve seat 1 at the connecting end 100 where the valve 2 is located. Specifically, the pin body 3-1 can be slidably connected to the valve seat 1, and the pin hole 2-2 is provided on the valve core 2 or the valve seat at the docking end, so as to limit the position in the restricted state, and the front part of the pin body 3-1 is inserted into the pin hole 2-2.

[0042] The operating part 3-2 is exposed to the outside for easy operation by human hands, that is, human hands can act on the operating part 3-2. It can be understood that the operating part 3-2 is exposed to the outside, and by operating the operating part 3-2, the pin body 3-1 can be moved to a state out of the restriction. The operating part 3-2 and the pin body 3-1 can be fixedly connected or connected through a transmission structure.

[0043] In order to facilitate operation, a rotating operating surface 1-1 is generally formed on the valve seat 1. The rotating operating surface 1-1 cannot be an arc surface coaxially arranged with the rotation axis of the valve seat 1, otherwise it is impossible to apply torque to push the valve seat 1 to rotate relative to the other connecting end 100. The rotating operating surface 1-1 is generally set as a plane, and of course it can also be set as an arc surface. In this case, the arc surface can be staggered or cross-set with the rotation axis of the valve seat 1, and the staggered setting can be parallel, or staggered in space when the angle is not a right angle. It should be noted that the facing direction of the rotating operating surface 1-1 is used to abut the force-applying part, so that when subjected to force, it can rotate around the axis in the back direction of the rotating operating surface 1-1, and the back direction and the facing direction of the rotating operating surface 1-1 are opposite directions.

[0044] The operating part 3-2 is arranged on the rotating operating surface 1-1, and when the operating part 3-2 is pressed in the direction opposite to the rotating operating surface 1-1, the pin body 3-1 can be moved to escape from the restricted state. Since the rotating operating surface 1-1 is not necessarily a plane, and may be a curved surface, the direction opposite to the rotating operating surface 1-1 here should be based on the installation position of the operating part 3-2. It should be noted that the operating part 3-2 can be active or inactive after being pressed, and when it is inactive, it can include a pressure sensor and a driver, so that when the operating part 3-2 is pressed, it can be detected by the pressure sensor, and the corresponding driver can drive the pin body 3-1 to move to escape from the restricted state. The operating part 3-2 can be a movable part, such as the movable direction can be the direction opposite to the rotating operating surface 1-1, so that when it is pressed, it can move along the direction opposite to the rotating operating surface 1-1, such as the movable direction of the operating part 3-2 can be aligned with the rotating operating surface 1-1 at the corresponding position.

[0045] In some embodiments, when the above-mentioned connection end 100 is used, the pin body 3-1 of the connection end 100 is in a restricted state, and the valve seat 1 of the connection end 100 needs to be rotated relative to the docking end 200, the valve 2 is constrained by the docking end 200 and cannot rotate with the valve seat 1. At this time, the operator can directly operate the rotating operating surface 1-1 to apply torque, because when applying torque, the fingertips will press on the rotating operating surface 1-1, and because the rotating operating surface 1-1 has an operating part 3-2, so that during the torque application process, the operating part 3-2 will be correspondingly pressed, and after the operating part 3-2 is pressed, the pin body 3-1 can be moved to get out of the restricted state. At this time, the current operating posture is maintained, that is, the torque is kept applied to the rotating operating surface 1-1. Then, after the pin body 3-1 is out of the restricted state, the valve seat 1 can be driven to rotate, and the valve 2 is constrained by other structures and does not rotate with the valve seat 1, so that it moves relative to the valve seat 1 to open and close the connecting channel 1-6 on the valve seat 1. It is found that when torque is applied to the rotating operating surface 1-1, since the operating portion 3-2 of the locking pin 3 is also arranged on the operating surface, the operating portion 3-2 can also be subjected to pressure, so that the pin body 3-1 can be released from the restricted state while keeping the force unchanged, and then the valve seat 1 will rotate accordingly, so that when docking or disassembling with the docking end 200, the valve 2 is restricted to rotate relative to the valve seat 1 to achieve opening and closing. In the normal state, due to the presence of the locking pin 3, the valve 2 will not rotate arbitrarily relative to the valve seat 1, and stable use can be guaranteed. In summary, the connecting end 100 of the fluid connector can effectively solve the problem of inconvenient operation of the connecting end of the current fluid connector.

[0046] In some embodiments, the pin body 3-1 of the locking pin 3 is generally slidably mounted on the valve seat 1, and is generally slidably mounted on the valve seat 1 along the rotation axis of the valve seat 1. The valve 2 is generally rotatably arranged on the valve seat 1, and the rotation axis of the valve 2 and the rotation axis of the valve seat 1 are preferably coaxially arranged, wherein the rotation axis of the valve seat 1 refers to the axis of rotational connection between the valve seat 1 and the butt end 200.

[0047] In some embodiments, the operating part 3-2 and the pin body 3-1 can be fixedly connected, and the pin body 3-1 can be spirally connected to the valve seat 1. When the operating part 3-2 is rotated at a small angle, the pin body 3-1 moves correspondingly in the spiral to present a partial movement in the axial direction, thereby achieving an axial release from the restricted state.

[0048] In some embodiments, the operating part 3-2 can be slidably connected to the valve seat 1 and the sliding direction is perpendicular to the sliding direction of the pin body 3-1, and the transmission mechanism is used to drive the operating part 3-2 to slide along the direction opposite to the rotating operating surface 1-1, so that the pin body 3-1 can be pushed to slide along the extending direction of the rotating axis of the valve seat 1. The transmission mechanism can be a connecting rod, and the two ends of the connecting rod are respectively connected to the operating part 3-2 and the pin body 3-1 for rotation, so that when the operating part 3-2 slides, the pin body 3-1 is driven to slide. Of course, it can also be transmitted by other means.

[0049] In some embodiments, the operating portion 3-2 and the pin body 3-1 can be offset by an inclined surface, so that when the operating portion 3-2 moves in the direction opposite to the rotating operating surface 1-1, the pin body 3-1 is pushed to slide so that the pin body 3-1 is released from the restricted state. The inclined surface can be set on the operating portion 3-2 or on the pin body 3-1. For better surface contact, it is preferred that both the operating portion 3-2 and the pin body 3-1 are provided with an operating surface.

[0050] In some embodiments, in order to ensure that the pin body 3-1 remains in the restricted state, the first elastic device 3-3 is preferably used to prevent the pin body 3-1 from leaving the restricted state. This can be achieved by directly preventing the pin body 3-1 from leaving the restricted state, or by directly preventing the operating part 3-2 from moving. Specifically, it can be set as needed.

[0051] In some embodiments, a second elastic device 3-4 is also included. In this case, the second elastic device 3-4 abuts against the operating part 3-2 to prevent the operating part 3-2 from moving in the direction opposite to the rotating operating surface 1-1; the first elastic device 3-3 abuts against the pin body 3-1 to achieve a double protection effect. The first elastic device 3-3 and the second elastic device 3-4 are preferably springs, which are respectively sleeved on the pin body 3-1 and the operating part 3-2. Of course, both can be elastic bodies, such as the second elastic device 3-4 is an elastic body arranged between the operating part 3-2 and the pin body 3-1, and the first elastic device 3-3 is an elastic body arranged at the rear end of the pin body 3-1. At this time, the front end of the pin body 3-1 is a working section to penetrate into the valve 2 or the docking end 200.

[0052] In some embodiments, it is preferred that both the operating part 3-2 and the pin body 3-1 are provided with inclined surfaces to achieve surface contact. For the convenience of description, the inclined surface of the operating part 3-2 can be the first inclined surface 3-5, and the inclined surface on the pin body 3-1 can be the second inclined surface 3-6; wherein the operating part 3-2 has a first limiting surface 3-7 connected to the rear edge of the first inclined surface 3-5; and wherein the pin body 3-1 has a second limiting surface 3-8 connected to the front edge of the second inclined surface 3-6; wherein the first limiting surface 3-7 and the second limiting surface 3-8 are both perpendicular to the moving direction of the pin body 3-1; when the operating part 3-2 moves to the point where the first limiting surface 3-7 and the second limiting surface 3-8 abut against each other, the pin body 3-1 is in a restricted state; when the operating part 3-2 moves to the point where the first inclined surface 3-5 and the second inclined surface 3-6 abut against each other, the pin body 3-1 is in a state of being out of restriction, that is, in a retracted state.

[0053] In some embodiments, in order to facilitate installation, the operating part 3-2 and the pin body 3-1 can be matched through a hole column or a slot column. The specific slot column matching method is as follows: one end of the operating part 3-2 has a U-shaped clamping part to clamp on both sides of the pin body 3-1, and the clamping feet 3-21 at both ends of the U-shaped clamping part have a first inclined surface 3-5 and a first limiting surface 3-7, and the corresponding side of the pin body 3-1 is provided with a second inclined surface 3-6 and a second limiting surface 3-8. Specifically, the operating part 3-2 can include a disc part and a handle part, wherein the disc part is exposed to the outside, and the two ends of the handle part are respectively connected to the disc part and the U-shaped clamping part. A limiter can be used to limit the transition of the U-shaped clamping part to move outward to prevent the operating part 3-2 from detaching from the valve seat 1.

[0054] In some embodiments, specifically, the side of the pin body 3-1 may be provided with an avoidance groove 3-11 extending in a direction perpendicular to the active direction of the pin body 3-1, the avoidance groove 3-11 and the clamping foot 3-21 are arranged in coordination, the rear side groove wall of the avoidance groove 3-11 is the second limiting surface 3-8, and the second limiting surface 3-8 is expanded backward at the groove opening side to form a second inclined surface 3-6. In this case, the avoidance groove 3-11 may be arranged on both sides of the pin body 3-1 to be arranged in coordination with the clamping foot 3-21 on the corresponding side.

[0055] In some embodiments, the rotating operating surface 1-1 may be a handle extending radially from the valve seat 1, and at least one side of the handle is the rotating operating surface 1-1. Of course, the rotating operating surface 1-1 may also be a cutting surface formed on the cylindrical valve seat 1, in which case the cutting surface is the rotating operating surface 1-1.

[0056] In some embodiments, the other side of the valve seat 1 may be provided with a connecting head 1-3 for connecting a pipeline and a mounting portion 1-2 for mounting a locking pin 3. The mounting portion 1-2 and the connecting head 1-3 are respectively located on both radial sides of the rotation axis of the valve seat 1 and are combined into a long strip structure. The side of the long strip structure forms a rotating operation surface 1-1, so that the long strip structure serves as the rotating operation portion 3-2 of the valve seat 1. It should be noted that the mounting portion 1-2 and the connecting head 1-3 are radially arranged in parallel to form a long strip structure. The two can be connected or separated. It only needs to be in a long strip shape as a whole, that is, to achieve a span in the length direction in the radial direction, that is, to span to both sides of the axial direction, so that the rotating operation surface 1-1 set perpendicularly or obliquely to the circumferential direction can be formed on both the mounting portion 1-2 and the connecting head 1-3 to facilitate the application of torque. When it is necessary to apply torque to the valve seat 1, one of the mounting portion 1-2 and the connecting head 1-3 can be used as a support point, and the other can be used as a torque application portion to form a set of torques to facilitate driving the valve seat 1 to rotate. And because of the travel requirements and size and structure requirements of the locking pin 3, generally speaking, the locking pin 3 requires a relatively large axial distance, and the connecting head 1-3 also requires a relatively large axial distance, so its protrusion is generally sufficient for finger operation here. Specifically, this protrusion distance can be made not less than 6 mm to ensure space for finger operation. It should be noted that the mounting portion 1-2 and the connecting head 1-3 are respectively located on both sides of the radial direction of the rotation axis of the valve seat 1, and do not need to be completely distributed on both sides. Most of them should be distributed on both sides, that is, from the overall point of view, at least one feasible embodiment is that the center line of the mounting portion 1-2 and the center line of the connecting head 1-3 can be respectively located on both sides of the radial direction of the rotation axis of the valve seat 1.

[0057] When using the above fluid connector, when operating the connection end 100 and the docking end 200, the fingers act on the long strip structure composed of the mounting portion 1-2 and the connecting head 1-3 to apply torque. Because it is a long strip structure, it is convenient to apply torque, which makes the overall operation simple and convenient. In the above fluid connector, by protruding the mounting portion 1-2 and the connecting head 1-3 and forming a long strip that is easy to operate, it is convenient to apply torque here, and it is convenient for the fingers to apply torque without having to set the operating portion 3-2 separately. Therefore, it is not only easy to operate, but also small and simple. In summary, the fluid connector can effectively solve the problem of inconvenient operation of the fluid connector.

[0058] In some embodiments, in order to facilitate the installation of the valve 2, the valve seat 1 may include a valve body 1-4 and a valve cover 1-5, and the valve body 1-4 may have a connector at one end and a valve cover 1-5 at the other end, and a rotatable valve 2 may be provided between the valve cover 1-5 and the valve body 1-4. The valve 2 may be provided with a connecting hole 2-1, and the valve body 1-4 may be provided with a connecting channel 1-6; when the valve 2 is rotated to an open state, the connecting hole 2-1 is aligned with the connecting channel 1-6; when the valve 2 is rotated to a closed state, the connecting hole 2-1 is staggered with the connecting channel 1-6 so that the valve 2 closes the connecting channel 1-6.

[0059] Specifically, a connecting channel 1-6 is provided on the valve body 1-4, and a docking channel is provided on the valve cover 1-5. The docking channel and the connecting channel 1-6 are coaxially arranged and have equal diameters. When the valve 2 rotates to open the connecting channel 1-6, the connecting hole 2-1 on the valve 2 is connected between the connecting channel 1-6 and the docking channel, and they are coaxially arranged. Preferably, at this time, the connecting hole 2-1, the connecting channel 1-6 and the docking channel on the valve 2 have equal diameters and are coaxially arranged.

[0060] In some embodiments, a clamping portion 1-7 and a clamping groove 1-8 may be provided on a side surface of the valve body 1-4 away from the valve cover 1-5, so that the clamping portion 1-7 can be rotatably engaged with the clamping groove 1-8 of the docking end 200 and used to push the valve 2 of the docking end 200 to rotate.

[0061] In some embodiments, for the convenience of description, there may be two connection ends 100 that are connected together. For the convenience of description, the two connection ends 100 are respectively the first connection end 100 and the second connection end 100. The first structure belonging to the first connection end 100 is increased, such as the first valve seat 1, the first valve 2, the first clamping part 1-7, etc., and the second structure belonging to the second connection end 100 is increased, such as the second valve seat 1, the second valve 2, the second clamping part 1-7, etc. It should be noted that the first connection end 100 and the second connection end 100 may have the same structure, or there may be some differences, such as being a male end and a female end respectively.

[0062] When operating from the separated state to the connected state, the first connection end 100 and the second connection end 100 are first inserted into each other, that is, the first clamping part 1-7 is inserted into the clamping groove 1-8 of the second valve seat 1, and the second clamping part 1-7 is inserted into the clamping groove 1-8 of the first valve seat 1, and the end of the first clamping part 1-7 extends into the clamping mouth of the second valve 2, and the end of the second clamping part 1-7 extends into the clamping mouth of the first valve 2, so as to realize torque transmission. Because the first clamping part 1-7 is inserted into the clamping groove 1-8 of the second valve seat 1, and the second clamping part 1-7 is inserted into the clamping groove 1-8 of the first valve seat 1, the first valve seat 1 and the second valve seat 1 are constrained to rotate relative to each other around the axis of the valve 2, which can be a rotational clamping relationship, so as to realize axial clamping after rotation.

[0063] Then the first valve seat 1 and the second valve seat 1 are rotated relative to each other. Relative to the mounting base, at this time, at least one of the first valve seat 1 and the second valve seat 1 needs to be rotated relative to the mounting base. For example, when operating the first valve body to rotate, the fingers of one hand act on the above-mentioned long strip structure, and the second valve body can be fixed by other structures, or the fingers of another hand can act on the long strip structure.

[0064] During rotation, the first valve 2 and the second valve seat 1 are relatively fixed, and both rotate relative to the first valve seat 1, while the second valve 2 and the first valve seat 1 are relatively fixed, and both rotate relative to the second valve seat 1. When the second valve seat 1 is rotated into place relative to the first valve seat 1, the first valve 2 and the second valve 2 are both in the open position.

[0065] One of the first connecting end and the second connecting end is provided with the locking pin 3 or both are provided with the locking pin 3 .

[0066] In some embodiments, the mounting portion 1-2 and the connecting head 1-3 can be combined into an integrated boss structure 1-9, that is, the integrated boss structure 1-9 is a long strip structure, and the boss structure protrudes from the side of the valve body 1-4 away from the valve cover 1-5.

[0067] In some embodiments, the outer contour of the axial cross section of the integrated boss structure 1-9 may include a first arc segment, a first straight segment, a second arc segment, and a second straight segment connected in sequence in a ring shape; the first arc segment is coaxially arranged with the connecting channel 1-6, and the second arc segment is coaxially arranged with the pin shaft of the locking pin 3. Arc segments are used at both ends to better fit the fingers, so that the operation is more comfortable and convenient. Of course, the first arc segment and the second arc segment may also be straight segments.

[0068] In some embodiments, the first straight line segment and the second straight line segment can be tangent to the first arc segment and the second arc segment respectively, so as to achieve better overall transition and better ensure strength. Generally speaking, the diameter of the first arc segment is not greater than the distance between the axes of the first arc segment and the second arc segment.

[0069] Of course, they can also be non-tangent, so that the distance between the first straight line segment and the second straight line segment can be shorter than the diameter of the first arc segment and / or the diameter of the second arc segment, so that a contraction is formed at the first straight line segment and the second straight line segment, such as forming a barbell structure. In this case, the central angles of the first arc segment and the second arc segment are both greater than 180 degrees.

[0070] In some embodiments, the diameter of the first arc segment can be made larger than the diameter of the second arc segment to avoid using an overly large columnar structure at the mounting portion 1-2, which would waste costs. Moreover, since the diameter of the first arc segment is larger than the diameter of the second arc segment, the cross-section of the integrated boss structure 1-9 is teardrop-shaped, which is more convenient to operate.

[0071] In some embodiments, on the integrated boss structure 1-9, in order to facilitate the installation of the locking pin 3, the locking pin 3 or a part of the locking pin 3 can be installed from the integrated boss structure 1-9. As shown in the figure, the supporting part on the locking pin 3, such as the elastic supporting part and other working parts, can be installed into the valve seat 1 from the opening on the integrated boss structure 1-9. Specifically, the mounting part 1-2 can be provided with a supporting seat for installing the locking pin 3, and the supporting seat can be inserted into the mounting hole of the mounting part 1-2 away from the other connecting end 100. Of course, the locking pin 3 or its partial structure can also be installed from the side of the mounting hole away from the valve 2, and the plug and the mounting hole can be threaded, snap-fitted or interference fit.

[0072] Based on the connection end 100 provided in the above embodiment, the utility model further provides a fluid connector, which has two connection ends 100, at least one of which is any one of the connection ends 100 in the above embodiment, and the other connection end 100 is used as a docking end 200, and the docking end 200 can be any one of the connection ends 100 in the above embodiment. Since the fluid connector adopts the connection end 100 in the above embodiment, please refer to the above embodiment for the beneficial effects of the fluid connector.

[0073] Based on the connection end 100 provided in the above embodiment, the utility model also provides a fluid connector, including two connection ends 100, the connection seats of the two connection ends 100 are rotationally connected, and at least one connection seat is provided with a locking pin 3, the pin body 3-1 of the locking pin 3 can prevent the two connection seats from rotating relative to each other when the pin body 3-1 can move axially to a restricted state; the locking pin 3 is correspondingly provided with an operating part 3-2, and the operating direction of the operating part 3-2 to operate the pin body 3-1 to retract is consistent with the force direction of the rotation of the connection end 100, and the position is the same. Since the setting method of the operating part 3-2 of the fluid connector is the same as the setting method of the operating part 3-2 of the connection end 100 in the above embodiment, please refer to the above embodiment for the beneficial effects of the fluid connector. The connection seat is the above valve seat 1.

[0074] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0075] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting end of a fluid connector, characterized in that: The invention comprises a valve seat (1), a valve (2) and a locking pin (3); the valve seat (1) is used for being rotatably connected to a docking end (200) and can enable the valve (2) to move relative to the valve seat (1) to achieve opening and closing when rotating; the locking pin (3) comprises a pin body (3-1) and an operating portion (3-2); when the pin body (3-1) moves axially to a restricted state, it can prevent the valve (2) from moving relative to the valve seat (1); the operating portion (3-2) is exposed and can drive the pin body (3-1) to move to escape from the restricted state; and a rotating operating surface (1-1) for applying torque to the valve seat (1) is provided on the valve seat (1); the operating portion (3-2) is provided on the rotating operating surface (1-1), and when the operating portion (3-2) is pressed in a direction opposite to the rotating operating surface (1-1), it can enable the pin body (3-1) to move to escape from the restricted state.

2. The connecting end of the fluid connector according to claim 1, characterized in that: It also includes a first elastic device (3-3); the operating part (3-2) is slidably connected to the valve seat (1) and the sliding direction is perpendicular to the sliding direction of the pin body (3-1); the operating part (3-2) and the pin body (3-1) are abutted against each other via inclined surfaces, so that when the operating part (3-2) moves in the direction away from the rotating operating surface (1-1), the pin body (3-1) is pushed to slide so that the pin body (3-1) is released from the restricted state; the first elastic device (3-3) is used to prevent the pin body (3-1) from being released from the restricted state.

3. The connecting end of the fluid connector according to claim 2, characterized in that: It also comprises a second elastic device (3-4), the second elastic device (3-4) abutting against the operating part (3-2) to prevent the operating part (3-2) from moving in a direction away from the rotating operating surface (1-1); the first elastic device (3-3) abuts against the pin body (3-1).

4. The connecting end of the fluid connector according to claim 2, characterized in that: The pin body (3-1) and the operating portion (3-2) are both provided with inclined surfaces for abutting against each other.

5. The connecting end of the fluid connector according to claim 3, characterized in that: The inclined surface of the operating part (3-2) is a first inclined surface (3-5), and the inclined surface on the pin body (3-1) is a second inclined surface (3-6); the operating part (3-2) has a first limiting surface (3-7) connected to the rear edge of the first inclined surface (3-5); the pin body (3-1) has a second limiting surface (3-8) connected to the front edge of the second inclined surface (3-6); the first limiting surface (3-7) and the second limiting surface (3-8) are both perpendicular to the moving direction of the pin body (3-1); when the operating part (3-2) moves to the point where the first limiting surface (3-7) and the second limiting surface (3-8) abut against each other, the pin body (3-1) is in the restricted state.

6. The connecting end of the fluid connector according to claim 5, characterized in that: One end of the operating portion (3-2) has a U-shaped clamping portion for clamping on two sides of the pin body (3-1), and the clamping feet (3-21) at both ends of the U-shaped clamping portion both have the first inclined surface (3-5) and the first limiting surface (3-7), and the corresponding side of the pin body (3-1) is provided with the second inclined surface (3-6) and the second limiting surface (3-8).

7. The connecting end of the fluid connector according to claim 6, characterized in that: The side of the pin body (3-1) is provided with an avoidance groove (3-11) whose extension direction is perpendicular to the moving direction of the pin body (3-1); the avoidance groove (3-11) and the clamping foot (3-21) are arranged in coordination; the rear side groove wall of the avoidance groove (3-11) is the second limiting surface (3-8); the second limiting surface (3-8) is expanded backwards on the groove opening side to form the second inclined surface (3-6).

8. The connecting end of the fluid connector according to claim 7, characterized in that: A connecting head (1-3) for connecting a pipeline and a mounting portion (1-2) for mounting the locking pin (3) are provided on one side of the valve seat (1); the mounting portion (1-2) and the connecting head (1-3) are respectively located on two radial sides of the rotation axis of the valve seat (1) and are combined into a long strip structure; the side surface of the long strip structure forms the rotating operating surface (1-1).

9. The connecting end of the fluid connector according to claim 8, characterized in that: The valve seat (1) comprises a valve body (1-4) and a valve cover (1-5); the valve body (1-4) has the connecting head (1-3) at one end and the valve cover (1-5) at the other end; a rotatable valve (2) is arranged between the valve cover (1-5) and the valve body (1-4); the valve (2) is provided with a connecting hole (2-1), and the valve body (1-4) is provided with a connecting channel (1-6); when the valve (2) is rotated to an open state, the connecting hole (2-1) is aligned with the connecting channel (1-6); when the valve (2) is rotated to a closed state, the connecting hole (2-1) is aligned with the connecting channel (1-6). The connecting passages (1-6) are staggered so that the valve (2) closes the connecting passages (1-6); a clamping portion (1-7) and a clamping groove (1-8) are provided on a side surface of the valve body (1-4) away from the valve cover (1-5), so that the clamping portion (1-7) can be rotatably clamped with the clamping groove of the docking end (200) and used to push the valve of the docking end (200) to rotate; the mounting portion (1-2) and the connecting head (1-3) are combined into an integral boss structure (1-9), and the boss structure (1-9) protrudes from a side of the valve body (1-4) away from the valve cover (1-5).

10. A fluid connector, characterized in that: It comprises two connection ends (100), and one of the connection ends (100) serves as a butt end (200) of the other connection end (100), and at least one of the connection ends is a connection end (100) according to any one of claims 1 to 9.

11. A fluid connector, characterized in that: The invention comprises two connecting ends (100), the connecting seats of the two connecting ends (100) are rotatably connected to each other, and at least one of the connecting seats is provided with a locking pin (3), and the pin body (3-1) of the locking pin (3) can prevent the two connecting seats from rotating relative to each other when the pin body (3-1) is axially movable to a restricted state; the locking pin is correspondingly provided with an operating part (3-2), and the operating direction of the operating part to operate the pin body (3-1) to retract is consistent with the direction of the force applied to operate the connecting end (100) to rotate, and the positions are the same.

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