Connecting end and fluid connector

Abstract

The utility model relates to the technical field of connectors, and particularly discloses a connecting end which is used for being matched with a butt joint end and comprises a valve seat and a valve core. Wherein a flow channel is arranged in the valve seat; the valve element is movably arranged in the valve seat, a pushing groove is formed in the valve element, the pushing portion on the butt joint end is inserted into the pushing groove to drive the valve element to move so as to open or close the flow channel, the valve element is of an integrated structure, and at least the wall face, making contact with the valve seat, of the valve element is made of plastic materials so as to be sealed with the valve seat. According to the connecting end provided by the utility model, the valve core is directly sealed with the valve seat, so that fluid in the flow channel can be blocked from the outside, and the fluid in the flow channel is prevented from leaking from a matching surface between the valve core and the valve seat. And the valve element is of an integrated structure, so that the situation that the sealing performance is reduced due to displacement of a conventional sealing gasket is avoided, and the sealing reliability of the connecting end is improved. The structure is simplified, and the assembly process is simpler. The utility model further discloses a fluid connector which also has the technical effects.

Description

Technical Field

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

[0002] A fluid connector usually includes a matching connection end and a docking end, and the structures of the two can be the same or different. When the connection end and the docking end are disconnected, the two are each sealed separately to disconnect the fluid source and prevent fluid leakage and spraying; when the connection end and the docking end are docked, their respective sealing structures will be opened to allow the fluid to communicate between the connection end and the docking end. The fluid connector can be used to connect the fluid source and the fluid radiator. Specifically, it can be used as an interface between the fluid source and various radiators to remove heat through the circulation of the fluid, thereby achieving efficient heat dissipation. Compared with traditional air-cooled heat dissipation, it can be better suitable for components with high heat dissipation requirements such as chips.

[0003] In the process of implementing the utility model, the inventors found that there are at least the following problems in the prior art:

[0004] The common connection end switches between the open and closed states through the movement of the valve core in the valve seat. In order to form a seal with the outside world and block the entire flow channel from the outside world, a sealing gasket is provided between the two ends of the valve core and the valve seat to achieve the range of movement of the valve core in the open position and the closed position to always keep the flow channel isolated from the outside world. The sealing gasket needs to be assembled in place in advance during assembly, so the assembly process is relatively cumbersome. In addition, during the movement of the valve core, the damping force of the valve core and the sealing gasket has the risk of causing the sealing gasket to shift, thereby affecting the sealing reliability. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a connection end and a fluid connector, which can improve the problem of poor sealing reliability of the connection end.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] A connecting end, used to cooperate with a butt end, comprising:

[0008] A valve seat, wherein a flow channel is provided inside and the valve seat is provided with an avoidance groove;

[0009] The valve core is movably arranged in the valve seat, and a push groove is provided on the valve core corresponding to the avoidance groove. The push groove is used for the push part on the docking end to insert and drive the valve core to move to open or close the flow channel. The valve core is an integrated structure and at least the wall surface in contact with the valve seat is made of plastic material to seal with the valve seat.

[0010] The connection end provided by the utility model is used to cooperate with the docking end, and the connection end includes a valve seat and a valve core. The valve seat is provided with a flow channel inside and a position-avoiding groove is provided on the valve seat; the valve core is movably arranged in the valve seat, and a push groove is provided on the valve core corresponding to the position-avoiding groove, and the push groove is used for the push part on the docking end to insert and drive the valve core to move, so as to open or close the flow channel, and the valve core is an integrated structure and at least the wall surface in contact with the valve seat is made of plastic material to seal with the valve seat.

[0011] The connecting end provided by the utility model can be matched with the butt end for connection, and the pushing part of the butt end is inserted into the pushing groove on the valve core of the connecting end, so that the butt end and the connecting end move relative to each other, and the pushing part drives the valve core to move in the opposite direction to open the flow channel. When disconnecting, the butt end and the connecting end move in the opposite direction, and the pushing part drives the valve core to move in the opposite direction to close the flow channel. At least the wall surface of the valve core in contact with the valve seat is made of plastic material, so that the valve core is directly sealed with the valve seat to block the fluid in the flow channel from the outside world to prevent the fluid in the flow channel from leaking from the matching surface between the valve core and the valve seat. The valve core is an integrated structure, and the valve core is used to achieve sealing, which avoids the decrease in sealing caused by the displacement of the conventional sealing gasket and improves the sealing reliability of the connecting end. The structure is simplified, and the assembly process is simpler, which is conducive to improving production efficiency and reducing production costs.

[0012] Optionally, in the above-mentioned connecting end, a protrusion is provided on the wall surface where the valve core contacts the valve seat.

[0013] Optionally, in the above-mentioned connecting end, a through hole is provided on the valve core, and the valve core can move to the point where the through hole and the flow channel are in an open state and the through hole and the flow channel are in a closed state; the protrusion includes a first protrusion ring and a second protrusion ring, the first protrusion ring is arranged along the edge of the through hole, and at least a part of the second protrusion ring is arranged outside the first protrusion ring and is spaced from the first protrusion ring, and the flow channel is always located within the hollow range of the second protrusion ring during the movement of the valve core from an open state to a closed state.

[0014] Optionally, in the above-mentioned connecting end, the cross-section of the protrusion is an isosceles trapezoid or a rectangle, and the outer end surface of the protrusion is provided with a convex ridge or a concave pit.

[0015] Optionally, in the above-mentioned connecting end, the plastic material includes engineering plastic.

[0016] Optionally, in the above-mentioned connecting end, the material of the valve core includes at least one of polytetrafluoroethylene, polyamide, polyoxymethylene, and polyurethane.

[0017] Optionally, in the above-mentioned connecting end, the valve core is rotatably arranged in the valve seat, the valve core is provided with a first locking hole and a second locking hole, the valve seat is provided with a mounting hole, and the connecting end includes a locking pin axially movably arranged in the mounting hole, when the valve core is rotated to a state closing the flow channel, the locking pin is locked in the first locking hole, and when the valve core is rotated to a state opening the flow channel, the locking pin is locked in the second locking hole.

[0018] Optionally, in the above-mentioned connecting end, the locking pin includes a sliding member, an elastic member and a locking member, the elastic member is arranged between the sliding member and the mounting hole, and is used to push the sliding member into the first locking hole or the second locking hole, and the locking member is used to lock the sliding member in a position exiting the first locking hole and the second locking hole.

[0019] Optionally, in the above-mentioned connecting end, the valve seat includes a valve seat body and a valve cover, the valve core is arranged between the valve seat body and the valve cover, and the end surfaces of the valve core respectively cooperating with the valve cover and the valve seat body are both made of plastic material.

[0020] Optionally, in the above-mentioned connecting end, the valve cover is provided with a pushing portion for inserting into the pushing groove of the valve core of the docking end, and the avoidance groove is provided on the valve cover for the pushing portion of the docking end to pass through and slide relatively.

[0021] In order to achieve the above object, the utility model also provides a fluid connector, which includes 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 This is a schematic diagram of an exploded structure of a specific embodiment of the utility model in a closed state of the connection end;

[0024] Figure 2 for Figure 1 A schematic diagram of the exploded structure with the connection end open is shown;

[0025] Figure 3 for Figure 1 A cross-sectional schematic diagram of the connection end in a closed state;

[0026] Figure 4 for Figure 1 A cross-sectional schematic diagram of the connection end in an open state;

[0027] Figure 5 for Figure 1 3D schematic diagram of the middle valve core;

[0028] Figure 6 for Figure 5 A schematic diagram of the main view;

[0029] Figure 7 for Figure 1 A schematic diagram of the matching between the connecting end and the docking end shown;

[0030] Figure 8 for Figure 7 Schematic diagram of the butt end;

[0031] Fig. 9 This is a schematic diagram of an exploded structure of another specific embodiment of the utility model in a closed connection end state;

[0032] Fig.10 This is a structural schematic diagram of a fluid connector in an open state according to a specific embodiment of the utility model;

[0033] Fig.11 for Fig.10 Corresponding schematic diagram of the closed state.

[0034] The following are marked in the accompanying drawings:

[0035] 1-connection end, 1a-butt end;

[0036] 100-valve seat, 200-valve core, 300-locking pin;

[0037] 110 - flow channel, 120 - mounting hole, 130 - valve seat body, 140 - valve cover, 150 - pushing part, 160 - avoidance groove, 170 - mounting groove;

[0038] 210 - pushing groove, 220 - protrusion, 230 - through hole, 240 - first locking hole, 250 - second locking hole, 260 - wall surface, 221 - first convex ring, 222 - second convex ring;

[0039] 310-sliding member, 320-elastic member, 330-locking member;

[0040] 10-male end, 20-female end, 11-male end flow port, 21-female end flow port, 30-seal. DETAILED DESCRIPTION

[0041] The embodiment of the utility model discloses a connection end and a fluid connector to improve the sealing reliability of the connection end.

[0042] 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.

[0043] The connecting end provided by the utility model is used for connecting with the docking end, and the structure of the docking end can be the same as or different from the structure of the connecting end. When the fluid source is disconnected, the connecting end and the docking end are each sealed separately; when the connecting end and the docking end are docked, they are opened separately, so that the connecting end and the docking end can form a connected fluid channel. The connecting end includes a valve seat and a valve core, and the valve core is constrained to be able to move within a preset range relative to the valve seat and open or close the flow channel. In order to achieve the seal between the valve core and the valve seat, at least the wall surface of the valve core in contact with the valve seat is set to a plastic material, so as to form a seal with the valve seat using the valve core itself. In the following embodiments, the structure and matching method of the valve core and the valve seat are mainly described.

[0044] In a specific embodiment, see Figure 1-Figure 8The connection end 1 provided by the utility model is used to cooperate with the docking end 1a, and the connection end 1 includes a valve seat 100 and a valve core 200. Among them, a flow channel 110 is provided inside the valve seat 100, and a avoidance groove 160 is provided on the valve seat 100. The valve core 200 can be movably arranged in the valve seat 100, and a push groove 210 is provided on the valve core 200 corresponding to the avoidance groove 160, and the push groove 210 is used for the push part 150 on the docking end 1a to be inserted and drive the valve core 200 to move, so as to open or close the flow channel 110. The push part 150 of the docking end 1a can specifically pass through the avoidance groove 160 to be inserted into the push groove 210 of the valve core 200, or the part of the valve core 200 provided with the push groove 210 can also be passed through the avoidance groove 160 to cooperate with the push part 150 of the docking end 1a. The valve core 200 of the connection end 1 can move with the push part 150 on the docking end 1a, that is, the drive of the valve core 200 is driven by the push part 150 on the docking end 1a, and the movement of the valve core 200 can open or close the flow channel 110 of the valve seat 100. It can be understood that the shape of the push groove 210 should be set corresponding to the shape of the push part 150 of the docking end 1a. The valve core 200 is an integrated structure and at least the wall surface 260 in contact with the valve seat 100 is made of plastic material to seal with the valve seat 100. At least the wall surface 260 in contact with the valve seat 100 of the valve core 200 is made of plastic material. By utilizing the characteristics of the plastic material, effective sealing between the valve seat 100 can be achieved. The integrated valve core 200 has a stable structure. It can be understood that the valve core 200 can be integrally formed with plastic material as a whole, or the part in contact with the valve seat 100 can be made of plastic material and integrally formed with a substrate, and the substrate includes but is not limited to a metal substrate, a polymer material substrate, a composite material substrate, etc.

[0045] The connecting end 1 provided by the utility model can be matched with the butt end 1a for connection. The push portion 150 of the butt end 1a is inserted into the push groove 210 on the valve core 200 of the connecting end 1, and the butt end 1a and the connecting end 1 move relative to each other, so that the push portion 150 of the butt end 1a drives the valve core 200 to move to open the flow channel 110. When disconnecting, the butt end 1a and the connecting end 1 move in the opposite direction, and the push portion 150 of the butt end 1a drives the valve core 200 to move in the opposite direction to close the flow channel 110. At least the wall surface 260 of the valve core 200 in contact with the valve seat 100 is made of plastic material, so that the valve core 200 is directly sealed with the valve seat 100, so that the fluid in the flow channel 110 can be blocked from the outside world to prevent the fluid in the flow channel 110 from leaking from the matching surface between the valve core 200 and the valve seat 100. The valve core 200 is an integrated structure, and the valve core 200 is used to achieve sealing, thereby avoiding the decrease in sealing caused by displacement of conventional sealing gaskets and improving the sealing reliability of the connection end 1. The structure is simplified, and the assembly process is simpler, which is conducive to improving production efficiency and reducing production costs.

[0046] Specifically, the valve seat 100 is provided with a push portion 150, and the butt end 1a includes the valve seat 100 and a valve core 200. The valve core 200 of the butt end 1a is movably arranged in the valve seat 100, and the valve core 200 is provided with a push groove 210. The push portion 150 on the connecting end 1 is used to be inserted into the push groove 210 of the valve core 200 of the butt end 1a to drive the valve core 200 to move. When the connection end 1 and the docking end 1a are plugged, the push part 150 of the connection end 1 is inserted into the push groove 210 of the docking end 1a, and the push part 150 of the docking end 1a is inserted into the push groove 210 of the connection end 1, and the valve seat 100 of the connection end 1 and the valve seat 100 of the docking end 1a move relative to each other, so that the push part 150 of the connection end 1 and the push part 150 of the docking end 1a move accordingly, thereby driving the valve core 200 of the connection end 1 and the valve core 200 of the docking end 1a to move, so as to switch the opening and closing states of the connection end 1 and the docking end 1a at the same time. The above arrangement greatly facilitates the operation.

[0047] In some embodiments, the valve core 200 is provided with a through hole 230, and the valve core 200 can move to an open state between the through hole 230 and the flow channel 110 and a closed state between the through hole 230 and the flow channel 110. That is, the opening and closing control of the flow channel 110 is realized by changing the relative position of the through hole 230 and the flow channel 110 when the valve core 200 rotates. For details, please refer to Figure 2 and Figure 4 When the valve core 200 moves to the through hole 230 and the flow channel 110 to be in an open state, the connection end 1 is opened; please refer to Figure 1 and Figure 3 , when the valve core 200 moves to the point where the through hole 230 and the flow channel 110 are offset to be in a closed state, the connection end 1 is closed. It can be understood that the through hole 230 of the valve core 200 and the flow channel 110 are connected, which may mean that the through hole 230 and the flow channel 110 are at least partially opposite to each other for connection, or that the through hole 230 and the flow channel 110 are directly opposite to each other for connection, so that the fluid in the flow channel 110 can flow from one end of the flow channel 110 through the through hole 230 into the other end of the flow channel 110, and the connection end 1 is opened. The through hole 230 of the valve core 200 and the flow channel 110 are offset, which means that the through hole 230 and the flow channel 110 are completely offset to be not connected, so that the fluid in the flow channel 110 cannot flow due to the blocking effect of the valve core 200, that is, the connection end 1 is closed. Specifically, when the valve core 200 moves to the point where the through hole 230 is directly opposite to the flow channel 110 , the connection end 1 is opened; when the valve core 200 moves to the point where the through hole 230 is completely offset from the flow channel 110 , the connection end 1 is closed.

[0048] In some embodiments, see Figure 5 and Figure 6, a protrusion 220 is provided on the wall surface 260 where the valve core 200 contacts the valve seat 100. By providing the protrusion 220, on the one hand, the extrusion force of the valve core 200 and the valve seat 100 can easily press the protrusion 220, thereby providing a reliable sealing effect. On the other hand, the protrusion 220 can be used to achieve sealing, reducing the contact area between the valve core 200 and the valve seat 100, thereby reducing the resistance when the valve core 200 moves, making it easier to drive the valve core 200 to move, that is, making the opening or closing operation of the connection end 1 more labor-saving.

[0049] In some embodiments, a through hole 230 is provided on the valve core 200, and the valve core 200 can move to the through hole 230 and the flow channel 110 in an open state or in a closed state. The protrusion 220 includes a first protrusion ring 221 and a second protrusion ring 222. The first protrusion ring 221 is arranged along the edge of the through hole 230, and at least a part of the second protrusion ring 222 is sleeved outside the first protrusion ring 221 and is arranged at a distance from the first protrusion ring 221. When the valve core 200 moves from the open state to the closed state, the flow channel 110 is located in the hollow range of the second protrusion ring 222. The first protrusion ring 221 and the second protrusion ring 222 are both annular. It can be understood that the annular shape here is not limited to a circular ring shape, but also includes other shapes that are closed on all sides. The specific shape of the first protrusion ring 221 is set corresponding to the shape of the through hole 230. The first convex ring 221 and the second convex ring 222 are matched, and the first convex ring 221 is arranged on the valve core 200 along the edge of the through hole 230, so that when the valve core 200 moves to the state where the through hole 230 is connected with the flow channel 110 to open, an effective seal can be formed between the matching surfaces of the valve core 200 and the valve seat 100, and the fluid is not easy to enter between the matching surfaces of the valve core 200 and the valve seat 100, that is, the fluid can flow better along the flow channel formed by the flow channel 110 and the through hole 230, reducing or even eliminating the radial flow of the fluid between the matching surfaces, thereby improving the turbulence caused by the radial flow, and further avoiding the problems of energy loss and noise caused by the turbulence. In the process of the valve core 200 moving from the open state with the flow channel 110 to the closed state, the flow channel 110 is located in the hollow range of the second convex ring 222, so the second convex ring 222 ensures that the valve core 200 can always maintain a seal with the matching surface of the valve seat 100 within the range of movement. Therefore, the cooperation between the first convex ring 221 and the second convex ring 222 can not only realize the effective sealing between the valve core 200 and the valve seat 100 within the movable range, but also reduce the influence of the matching surface on the fluid flow state when the valve core 200 is in the open state. The contact area between the valve core 200 and the valve seat 100 is small, so the resistance to the movement of the valve core 200 is small, thereby facilitating the operation of opening or closing the connecting end 1.

[0050] In some embodiments, part of the first convex ring 221 is formed as part of the second convex ring 222. That is, the first convex ring 221 and the second convex ring 222 are partially shared. The second convex ring 222 is sleeved outside the through hole 230 and the part shared with the first convex ring 221 is along the edge of the through hole 230, so that reliable sealing is achieved while greatly reducing the contact area between the valve core 200 and the valve seat 100.

[0051] Specifically, the second convex ring 222 is arranged along the shortest path of the projection track around the flow channel 110, and the projection track of the flow channel 110 is the track formed by the projection of the flow channel 110 on the valve core 200 within the range of movement of the valve core 200. The valve core 200 is movably arranged on the valve seat 100, that is, the valve core 200 can move relative to the valve seat 100, which is usually regarded as the valve seat 100 remains stationary, the valve core 200 moves relative to the valve seat 100, and the track formed by the projection of the flow channel 110 on the valve core 200 within the range of movement of the valve core 200, and the second convex ring 222 is arranged along the shortest path around the track. If the relative movement of the valve core 200 and the valve seat 100 is regarded as the valve core 200 being stationary and the valve seat 100 rotating relative to the valve core 200, then the second convex ring 222 is arranged around the shortest path of the moving track of the flow channel 110. The second convex ring 222 is configured as above, which can achieve effective sealing and at the same time the length of the second convex ring 222 is the shortest, so that the resistance to the movement of the valve core 200 is minimal.

[0052] In some embodiments, the cross section of the protrusion 220 is an isosceles trapezoid or a rectangle. The top of the isosceles trapezoid is the outer end of the flange, and the bottom is the end connected to the valve core 200. As set above, the protrusion 220 has a stable structure, is subjected to relatively uniform force when squeezed, and deforms evenly, thereby being able to provide an effective and reliable sealing effect.

[0053] In some embodiments, the outer end surface of the protrusion 220 is provided with ridges or pits. Through the provision of ridges or pits, when the protrusion 220 is pressed against the valve seat 100, on the one hand, it is easy to deform to fit tightly to achieve reliable sealing, and on the other hand, it can increase the contact area with the valve seat 100, thereby improving the sealing effect. Specifically, the ridges or pits can be arranged in a mesh shape.

[0054] In some embodiments, the plastic material includes engineering plastics. Specifically, the material of the valve core 200 includes engineering plastics. Engineering plastics are plastics that can be used as engineering materials and replace metals. Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, good electrical insulation, can be used for a long time in harsh chemical and physical environments, and can replace metals as engineering structural materials. Therefore, while using engineering plastics to provide sealing, it has good durability.

[0055] In some embodiments, the material of the valve core 200 includes at least one of polytetrafluoroethylene, polyamide, polyoxymethylene, and polyurethane. That is, the valve core 200 can be made of one of the above materials alone, or it can be made of at least two of the above materials. Polytetrafluoroethylene has excellent chemical corrosion resistance, excellent high temperature resistance and low friction coefficient. Its excellent chemical corrosion resistance makes it suitable for corrosive fluids, and its extremely low friction coefficient makes the valve core 200 have less resistance in relative movement with the valve seat 100, and has high efficiency and long life. In addition, its good wear resistance can serve for a long time under harsh conditions such as heavy load, high speed, and high temperature. Polyamide, polyoxymethylene, and polyurethane can also provide good sealing performance.

[0056] In some embodiments, both ends of the through hole 230 are chamfered so that the valve core 200 is not easily squeezed when it moves relative to the valve seat 100, thereby reducing the wear on the edges of the valve core 200 during the movement, thereby ensuring the reliability of the connecting end 1.

[0057] In some embodiments, the valve core 200 is rotatably disposed on the valve seat 100. The valve core 200 is rotatably disposed, and the opening and closing states of the flow channel 110 are switched by its rotation, such as switching the positional relationship between the through hole 230 and the flow channel 110. The rotational arrangement of the valve core 200 occupies a small space, and the corresponding movement stroke of the valve core 200 required to realize the opening and closing states of the connection end 1 is small, so it is easy to operate. Specifically, the rotation axis of the valve core 200 is parallel to the axis of the through hole 230.

[0058] In some embodiments, the valve core 200 is provided with a first locking hole 240 and a second locking hole 250, the valve seat 100 is provided with a mounting hole 120, and the connecting end 1 includes a locking pin 300 movably provided in the mounting hole 120 along the axial direction. When the valve core 200 moves to a state of closing the flow channel 110, the locking pin 300 is locked in the first locking hole 240, and when the valve core 200 moves to a state of opening the flow channel 110, the locking pin 300 is locked in the second locking hole 250. It can be understood that the ability of the locking pin 300 to move along the axial direction of the valve core 200 includes both the axial translation of the locking pin 300 and the axial expansion and contraction of the locking pin 300. By setting the locking pin 300, when the valve core 200 moves to the open position, that is, the entire flow channel 110 forms a passage, and the connection end 1 is in the open state, the locking pin 300 is inserted into the second locking hole 250, thereby locking the position of the valve core 200, that is, the valve core 200 cannot continue to rotate relative to the valve seat 100, so that the connection end 1 can be reliably maintained in the open state. When the valve core 200 moves to the closed position, the locking pin 300 is inserted into the first locking hole 240, thereby locking the position of the valve core 200, that is, the valve core 200 cannot continue to move relative to the valve seat 100, so that the connection end 1 can be reliably maintained in the closed state. In addition, through the cooperation of the locking pin 300 with the first locking hole 240 and the second locking hole 250, a reminder of the rotation position of the valve core 200 can be provided when the connection end 1 is opened or closed, such as a sound reminder, a hand feeling reminder caused by different resistances, etc., and the structure is simple and the positioning is precise. The structure is simple because a locking pin 300 cooperates with the first locking hole 240 and the second locking hole 250. When the valve core 200 is rotatably disposed on the valve seat 100, the first locking hole 240 and the second locking hole 250 can be distributed along the circumferential direction.

[0059] In some embodiments, the locking pin 300 includes a sliding member 310, an elastic member 320 and a locking member 330. The elastic member 320 is disposed between the sliding member 310 and the mounting hole 120 and is used to push the sliding member 310 into the first locking hole 240 or the second locking hole 250. The locking member 330 is used to lock the sliding member 310 at a position where the sliding member 310 exits the first locking hole 240 and the second locking hole 250. The elastic member 320 is used to provide a force for the sliding member 310 to extend into the first locking hole 240 and the second locking hole 250. When the valve core 200 rotates until the first locking hole 240 or the second locking hole 250 is aligned with the sliding member 310, the sliding member 310 extends into the first locking hole 240 or the second locking hole 250 under the action of the elastic member 320. At the same time, by setting the elastic member 320, when the sliding member 310 extends to the first locking hole 240 or the second locking hole 250, a click sound can be provided, so that the operator can accurately grasp the rotation position of the valve core 200. In addition, by setting the locking member 330, the sliding member 310 can be locked at the position of exiting the first locking hole 240 and the second locking hole 250. When the valve core 200 needs to be rotated to change the open or closed state of the flow channel 110, the sliding member 310 can be retracted to overcome the force of the elastic member 320 to exit the first locking hole 240 and the second locking hole 250, and the sliding member 310 can be locked in the retracted state by the action of the locking member 330, so that when the valve core 200 is rotated, the user does not need to manually operate the sliding member 310 to keep it in the retracted state, which greatly facilitates the operation. After the locking member 330 is unlocked, the elastic member 320 drives the sliding member 310 to extend outward to insert into the corresponding first locking hole 240 or the second locking hole 250. The locking member 330 may specifically adopt a press-lock structure that cooperates with the sliding member 310, such as a push-push structure, that is, when the sliding member 310 is pressed in the retracting direction, the sliding member 310 is locked in the retracted position, and when the sliding member 310 is pressed in the retracting direction again, the sliding member 310 is unlocked and reset to the extended position. Alternatively, the locking member 330 may also adopt a magnetic attraction structure. For ease of operation, a portion of the sliding member 310 may specifically be exposed from the valve seat 100.

[0060] In some embodiments, the valve seat 100 includes a valve seat body 130 and a valve cover 140, and the valve core 200 is disposed between the valve seat body 130 and the valve cover 140. The end surfaces of the valve core 200 that cooperate with the valve cover 140 and the valve seat body 130 are made of plastic. By setting the valve seat 100 as a split structure and the valve core 200 being disposed between the valve seat body 130 and the valve cover 140, the assembly of the valve core 200 is facilitated, and the difficulty of assembly and processing is reduced. The opposite ends of the valve core 200 cooperate with the valve cover 140 and the valve seat body 130 respectively, and the opposite ends of the valve core 200 are respectively made of plastic materials for sealing. Specifically, the opposite ends of the valve core 200 can be respectively provided with protrusions 220, and the protrusions 220 at both ends have the same structure. Specifically, the valve seat body 130 and the valve cover 140 are detachably connected to facilitate later maintenance.

[0061] In some embodiments, the valve cover 140 is provided with a push portion 150 for inserting into the push groove 210 of the valve core 200 of the docking end 1a, and the avoidance groove 160 is provided on the valve cover 140, and the avoidance groove 160 is used for the push portion 150 of the docking end 1a to pass through and slide relatively. The push groove 210 on the valve core 200 is opposite to the avoidance groove 160 on the valve cover 140, and the avoidance groove 160 can be used for the push portion 150 of the docking end 1a to be inserted and move along the avoidance groove. With the movement of the push portion 150 of the docking end 1a, the valve core 200 of the connection end 1 is opened or closed under the drive of the push portion 150. It can be understood that the push groove 210 is opposite to the avoidance groove 160, that is, the push portion 150 of the docking end 1a can pass through the avoidance groove 160 and be inserted into the push groove 210 to drive the valve core 200 to move.

[0062] Furthermore, the avoidance groove 160 is also used to axially lock the push part 150 of the docking end 1a with the valve seat 100 of the connecting end 1. The push part 150 of the docking end 1a is used to drive the valve core 200 of the connecting end 1 to move, and can cooperate with the avoidance groove 160 to achieve axial locking of the push part 150 of the docking end 1a with the valve seat 100 of the connecting end 1, that is, it is limited in the axial direction, keeps connected without disengagement, and the two can specifically rotate relative to each other in the circumferential direction, so that the push part drives the valve core 200 to rotate. With the above arrangement, the push part is used to provide both the driving force for the rotation of the valve core 200 and the axial connection force. The avoidance groove 160 can be specifically arc-shaped, and the push part 150 of the docking end 1a moves along the arc-shaped avoidance groove 160 when rotating. When connecting, hold the valve seat 100 of the connection end 1 and the valve seat 100 of the docking end 1a with both hands, insert the push part 150 of the valve seat 100 of the connection end 1 into the avoidance groove of the valve seat 100 of the docking end 1a, and insert the push part 150 of the valve seat 100 of the docking end 1a into the avoidance groove 160 of the valve seat 100 of the connection end 1, and the end faces of the valve seat 100 of the connection end 1 and the valve seat 100 of the docking end 1a are in contact, and the two hands rotate in opposite directions. At this time, the push part 150 of the connection end 1 drives the valve core 200 of the docking end 1a to rotate, and the push part 150 of the docking end 1a drives the valve core 200 of the connection end 1 to rotate, until the connection end 1 and the docking end 1a are connected at the same time. When disconnecting, rotate the valve seat 100 of the connection end 1 and the valve seat 100 of the docking end 1a in the opposite directions mentioned above.

[0063] In some embodiments, the axial locking of the avoidance groove 160 and the pushing part 150 on the docking end 1a can be achieved by forming an undercut structure by matching the pushing part 150 with the avoidance groove 160 to limit the axial position. And the size of one end of the avoidance groove 160 is larger than the size of the undercut to facilitate the insertion and removal of the pushing part 150 of the docking end 1a. The pushing part 150 on the corresponding connecting end 1 can be used to form an undercut with the avoidance groove on the docking end 1a. The avoidance groove 160 and the pushing part 150 are arranged as above, with a simple structure and reliable matching.

[0064] In some embodiments, see Fig. 9 The outer end surface of the valve seat 100 is provided with a mounting groove 170 for mounting the sealing member 30, and the sealing member 30 is used for sealing between the valve seat 100 and the butt end 1a. In order to facilitate the sealing between the connection end 1 and the butt end 1a, the mounting groove 170 is provided on the outer end surface of the valve seat 100. When the butt end 1a is butt-jointed, the sealing member 30 is arranged in the mounting groove 170 to achieve the sealing between the connection end 1 and the butt end 1a. Of course, the sealing member 30 should be provided with an avoidance hole on the seal member 30 that cooperates with the flow channel 110, so as to achieve the sealing without affecting the normal operation of the connection end 1.

[0065] The utility model also provides a fluid connector. In some embodiments, refer to Fig.10 and Fig.11 The fluid connector includes a male end 10 and a female end 20, at least one of which is a connection end in any of the above embodiments. Since the fluid connector adopts the connection end in the above embodiments, please refer to the above embodiments for the beneficial effects of the fluid connector.

[0066] In some embodiments, the male end 10 and the female end 20 are any of the connection ends in the above embodiments, and the male end 10 and the female end 20 are detachably connected to each other, and the male end 10 and the female end 20 can be relatively rotated until the male end flow port 11 on the male end face is connected to the female end flow port 21 on the female end face to be in an open state and staggered to be in a disconnected state. Specifically, when the male end 10 and the female end 20 rotate relative to each other, the push portion on the valve seat of the male end 10 drives the valve core of the female end 20 to rotate, and the push portion on the valve seat of the female end 20 drives the valve core of the male end 10 to rotate, so as to synchronously open or close the male end 10 and the female end 20.

[0067] In some embodiments, a sealing member 30 is provided between the male end face and the female end face. The sealing member 30 includes a first sealing portion and a second sealing portion, wherein the first sealing portion is annular and is provided at the male end 10 along the edge of the male end flow opening 11 or provided at the female end 20 along the edge of the female end flow opening 21; the second sealing portion is annular and at least partially sleeved outside the first sealing portion and spaced apart from the first sealing portion, and during the process of the male end 10 and the female end 20 moving from the open state of the male end flow opening 11 and the female end flow opening 21 to the disconnected state, the male end flow opening 11 and the female end flow opening 21 are both located within the hollow range of the second convex ring 222.

[0068] To facilitate the installation of the end face seal 30 , an installation groove 170 for installing the seal 30 may be provided on the male end face or the female end face.

[0069] 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.

[0070] 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, used to cooperate with a butt end (1a), characterized in that: include: A valve seat (100) is provided with a flow channel (110) inside, and the valve seat (100) is provided with a relief groove (160); The valve core (200) is movably arranged in the valve seat (100), and a push groove (210) is provided on the valve core (200) corresponding to the avoidance groove (160). The push groove (210) is used for the push part (150) on the docking end (1a) to be inserted and drive the valve core (200) to move so as to open or close the flow channel (110). The valve core (200) is an integrated structure and at least the wall surface (260) in contact with the valve seat (100) is made of plastic material so as to be sealed with the valve seat (100).

2. The connection terminal according to claim 1, characterized in that: A protrusion (220) is provided on the wall surface (260) where the valve core (200) contacts the valve seat (100).

3. The connection terminal according to claim 2, characterized in that: The valve core (200) is provided with a through hole (230), and the valve core (200) can move to a state where the through hole (230) and the flow channel (110) are in an open state, and the through hole (230) and the flow channel (110) are in a closed state; the protrusion (220) comprises a first protrusion ring (221) and a second protrusion ring (222), wherein the first protrusion ring (221) is arranged along the edge of the through hole (230), and at least a portion of the second protrusion ring (222) is sleeved outside the first protrusion ring (221) and is spaced apart from the first protrusion ring (221); when the valve core (200) moves from an open state to a closed state, the flow channel (110) is always located within the hollow range of the second protrusion ring (222).

4. The connection terminal according to claim 2, characterized in that: The cross section of the protrusion (220) is an isosceles trapezoid or a rectangle, and the outer end surface of the protrusion (220) is provided with a convex edge or a concave pit.

5. The connection terminal according to claim 1, characterized in that: The plastic material includes engineering plastics.

6. The connection terminal according to claim 1, characterized in that: The material of the valve core (200) includes one of polytetrafluoroethylene, polyamide, polyoxymethylene, and polyurethane.

7. The connection terminal according to any one of claims 1 to 6, characterized in that: The valve core (200) is provided with a first locking hole (240) and a second locking hole (250), the valve seat (100) is provided with a mounting hole (120), and the connecting end includes a locking pin (300) movably arranged in the mounting hole (120) along the axial direction, when the valve core (200) moves to a state of closing the flow channel (110), the locking pin (300) is locked in the first locking hole (240), and when the valve core (200) moves to a state of opening the flow channel (110), the locking pin (300) is locked in the second locking hole (250).

8. The connection terminal according to claim 7, characterized in that: The locking pin (300) comprises a sliding member (310), an elastic member (320) and a locking member (330); the elastic member (320) is arranged between the sliding member (310) and the mounting hole (120) and is used to push the sliding member (310) into the first locking hole (240) or the second locking hole (250); the locking member (330) is used to lock the sliding member (310) at a position exiting the first locking hole (240) and the second locking hole (250).

9. The connection terminal according to any one of claims 1 to 6, characterized in that: The valve seat (100) comprises a valve seat body (130) and a valve cover (140), the valve core (200) is arranged between the valve seat body (130) and the valve cover (140), and the end surfaces of the valve core (200) that respectively cooperate with the valve cover (140) and the valve seat body (130) are all made of plastic material.

10. The connection terminal according to claim 9, characterized in that: The valve cover (140) is provided with a pushing portion (150) for inserting into the pushing groove (210) of the valve core (200) at the butt end (1a); the avoidance groove (160) is provided on the valve cover (140) for the pushing portion (150) at the butt end (1a) to pass through and slide relatively.

11. A fluid connector, comprising a male end (10) and a female end (20), characterized in that: The male end (10) and / or the female end (20) is a connecting end as described in any one of claims 1 to 10.

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