Fluid connector and female end valve stem, female end structure and male end piston thereof

Abstract

The present invention discloses a female valve stem of a fluid connector, comprising a female rear rod portion and a female front column portion arranged at the front end of the female rear rod portion, wherein the rear end of the female rear rod portion has a flat portion capable of directing flow forward. In the female valve stem, flow diversion is provided on both sides of the flat portion in the thickness direction, and the female valve stem can be fixed to the corresponding female body through the edges on both sides in the width direction, so as to achieve a very good flow diversion effect while ensuring fixation. In summary, the female valve stem of the fluid connector can effectively solve the problem of poor flow diversion effect at the rear end connection of the female valve stem. The present invention also discloses a female structure including the above-mentioned female valve stem, a fluid connector including the above-mentioned female structure, and a male piston of a fluid connector.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline connection, and more specifically, to a female end valve stem of a fluid connector, a female end structure including the female end valve stem, a fluid connector including the female end structure, and a male end piston of a fluid connector. Background Art

[0002] At present, with the progress of society and the development of science and technology, the Internet of Everything has higher and higher requirements for the computing speed of various chips, resulting in higher and higher requirements for chip heat dissipation. Traditional air cooling can no longer meet the heat dissipation needs, and various new types of fluid heat sinks are about to become mainstream. The fluid connector is the interface between the fluid source and various chip heat sinks.

[0003] In the industry, fluid connectors are divided into male and female ends. When the fluid source is disconnected, the male and female ends are sealed separately to prevent fluid leakage and spraying. When the male and female ends are plugged together, their respective sealing structures will be opened, the fluid source and the radiator will be connected, the fluid circulates, taking away the heat, and playing a role in efficient heat dissipation.

[0004] The pressure of the fluid will drop from the input end to the output end through different directions and variable diameter fluid channels; the pressure drop means the reduction of heat dissipation efficiency; in the liquid cooling industry, which has higher and higher heat dissipation efficiency, reducing the pressure drop loss from the input end to the output end and improving the heat dissipation efficiency are attracting more and more attention in the industry. How to effectively solve the problem of poor flow guidance effect at the rear end connection of the female valve stem is an urgent problem that technicians in this field need to solve. Summary of the invention

[0005] In view of this, the first object of the present invention is to provide a female end valve stem of a fluid connector, which can effectively solve the problem of poor flow guidance effect at the rear end connection of the female end valve stem; the second object of the present invention is to provide a female end structure including the above-mentioned female end valve stem; the third object of the present invention is to provide a fluid connector including the above-mentioned female end structure; the fourth object of the present invention is to provide a male end piston of a fluid connector.

[0006] In order to achieve the above first object, the present invention provides the following technical solutions:

[0007] A female end valve stem of a fluid connector comprises a female end rear stem portion and a female end front column portion arranged at the front end of the female end rear stem portion, wherein the rear end of the female end rear stem portion has a flat portion capable of guiding flow forward.

[0008] When the female end valve stem of the above-mentioned fluid connector is used, because a flat portion is used on the rear stem of the female end, the two side surfaces in the thickness direction of the flat portion can be used for flow diversion, and the two sides in the width direction of the flat portion can be used for fixation. Therefore, the connection positions on both sides in the width direction will not interfere with the flow of the fluid, so the fluid flow performance is guaranteed as a whole. Therefore, in the female end valve stem, flow diversion is provided on both sides in the thickness direction of the flat portion, and it can be fixed to the corresponding female end body through the two side edges in the width direction, so that while ensuring fixation, a very good flow diversion effect is achieved. In summary, the female end valve stem of the fluid connector can effectively solve the problem of poor flow diversion effect at the rear end connection of the female end valve stem.

[0009] Preferably, both side portions in the width direction of the flat portion form a matching arc surface on the rear side of the support column; the matching arc surface is located on the same cylindrical surface and is respectively located at both ends in the diameter direction, and is coaxially arranged with the front column portion of the female end.

[0010] Preferably, the flat portion is arranged with a width gradually reduced at the front side of the support column and a constant thickness.

[0011] Preferably, the two side planes of the flat portion in the thickness direction gradually approach each other in the rearward direction until they are connected.

[0012] Preferably, an annular groove is provided on the side surface of the front column portion of the female end to accommodate a sealing ring.

[0013] In order to achieve the above second purpose, the present invention also provides a female end structure, which includes any of the above female end valve stems, and also includes a female end body, a female end valve sleeve and a female end elastic member, the support column of the female end valve stem is connected to the female end body, the female end front column of the female end valve stem and the female end body form a female end interface annular gap at the interface, the female end valve sleeve can be movably arranged in the female end body, and is connected to the female end body through the female end elastic member, and the female end valve sleeve has a sealing portion that matches the female end interface annular gap. Since the above female end valve stem has the above technical effects, the female end structure having the female end valve stem should also have corresponding technical effects.

[0014] Preferably, the matching arc surfaces on both sides of the flat portion of the female end valve stem are in matching contact with the inner wall surface of the female end body, and centering is achieved through the matching contact.

[0015] Preferably, the female end body includes a rear cap portion and a docking sleeve detachably connected to the rear cap portion, a docking port is provided inside the docking sleeve, and the above-mentioned female end valve sleeve is placed thereon, and the front end of the rear cap portion is sleeved on the docking sleeve; the bottom of the rear cap portion is crimped and fixed to the supporting column by the docking sleeve; a guide channel is provided in the middle portion of the rear cap portion, and the inner wall of the guide channel is in mating contact with the mating arc surface.

[0016] Preferably, a groove for accommodating the support column is formed at the bottom of the rear cap portion, and the female end elastic member abuts against the bottom of the rear cap portion.

[0017] In order to achieve the third objective mentioned above, the present invention further provides a fluid connector, which includes any of the above-mentioned female end structures, including a male end structure, wherein the male end structure includes a male end body, a male end piston and a male end elastic member, the front end of the male end body has a front end interface portion that matches the female end interface annular gap of the female end structure, and a rear end expansion hole is formed on the rear inner side of the front end interface portion to form a gap for fluid flow when moving into the female end interface annular gap, and the male end piston is movably connected to the male end body through the male end elastic member. Since the above-mentioned female end structure has the above-mentioned technical effects, the fluid connector having the female end structure should also have corresponding technical effects.

[0018] Preferably, it also includes a first locking bead laterally movably connected to the female end body of the female end structure, a sliding sleeve slidably connected to the female end body in the front-to-back direction, and a locking elastic member preventing the sliding sleeve from disengaging from the locking position, and a locking groove matching the first locking bead is provided on the outer side of the male end body; when the sliding sleeve is in the locking position, it can prevent the first locking bead from disengaging from the locking groove, and when the sliding sleeve slides relative to the female end body to disengage from the locking position, the first locking bead can disengage from the locking groove.

[0019] Preferably, it also includes a second locking bead which is laterally movably connected to the female end body. When the sliding sleeve is in the locking position, the inner guide slope of the sliding sleeve abuts against the second locking bead. The male end body is provided with a pushing slope on the front side of the locking groove, so that when the pushing slope moves into the female end body, the second locking bead can be pushed to move laterally outward. When the second locking bead moves laterally outward, the inner guide slope can be pushed forward and backward to make the sliding sleeve disengage from the locking position.

[0020] Preferably, the male end piston includes a male end front column portion and a male end rear rod portion coaxially arranged with the male end front column portion, and the male end rear rod portion is evenly arranged with a plurality of radially extending vertical plate portions along the circumferential direction, and the outer edge of each of the vertical plate portions is in contact and cooperate with the rear end expansion hole.

[0021] Preferably, the male end rear rod portion and the male end front column portion are connected via a flow guide frustum portion to form a continuous contraction; and the front end of the vertical plate portion is closely connected to the flow guide frustum portion.

[0022] Preferably, the rear end of the male rear rod portion forms a conical structure to guide the fluid.

[0023] In order to achieve the above-mentioned fourth purpose, the present invention also provides a male end piston of a fluid connector, which includes a male end front column portion and a male end rear rod portion coaxially arranged with the male end front column portion, and the male end rear rod portion is evenly arranged with a plurality of radially extending vertical plate portions along the circumferential direction, and the outer edges of each of the vertical plate portions are located on the same cylindrical surface.

[0024] Preferably, the male end rear rod portion and the male end front column portion are connected via a truncated cone portion to form a continuous contraction; and the front end of the vertical plate portion is closely connected to the truncated cone portion.

[0025] Preferably, the rear end of the male rear rod portion forms a conical structure to guide the fluid.

[0026] Preferably, a step surface is formed on the vertical plate portion; and the step surfaces on each of the vertical plate portions are located on the same cylindrical surface so that the male end elastic member can be sleeved thereon.

[0027] Preferably, the thickness of the vertical plate portion gradually decreases in the radial outward direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of a fluid connector after docking provided by some embodiments of the present invention;

[0030] Figure 2 A schematic diagram of the structure of a fluid connector before docking provided by some embodiments of the present invention;

[0031] Figure 3 for Figure 2 A schematic diagram of a top cross-sectional structure of a fluid connector in FIG.

[0032] Figure 4 A schematic diagram of a female terminal structure provided in some embodiments of the present invention;

[0033] Figure 5A schematic diagram of the structure of a male terminal provided in some embodiments of the present invention;

[0034] Figure 6 A schematic structural diagram of a female end valve stem of a fluid connector provided in some embodiments of the present invention;

[0035] Figure 7 A schematic structural diagram of a male end piston of a fluid connector provided in some embodiments of the present invention;

[0036] Figure 8 for Figure 7 Schematic diagram of the right view of the male end piston.

[0037] The following are marked in the accompanying drawings:

[0038] Female end structure 100, male end structure 200;

[0039] Female end body 1, female end valve sleeve 2, female end valve stem 3, female end elastic member 4, male end body 5, male end piston 6, male end elastic member 7, first sealing ring 8, first locking bead 9, second locking bead 10, sliding sleeve 11, locking elastic member 12, second sealing ring 13;

[0040] Rear cap portion 1-1, docking tube 1-2, sealing portion 2-1, female end front column portion 3-1, female end rear rod portion 3-2, flat portion 3-3, support column 3-4, front end cylinder portion 5-1, rear end expansion hole 5-2, front end interface portion 5-3, locking groove 5-4, push inclined surface 5-5, male end front column portion 6-1, male end rear rod portion 6-2, vertical plate portion 6-3, guide frustum portion 6-4, inner guide inclined surface 11-1;

[0041] Match with arc surface 3-3-1.

[0042] The arrow direction indicates the fluid flow direction. DETAILED DESCRIPTION

[0043] The embodiment of the present invention discloses a female valve stem of a fluid connector, which effectively solves the problem of poor flow guiding effect at the rear end connection of the female valve stem.

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 8 , Figure 1 A schematic structural diagram of a fluid connector after docking provided by some embodiments of the present invention; Figure 2 A schematic diagram of the structure of a fluid connector before docking provided by some embodiments of the present invention; Figure 3 for Figure 2 A schematic diagram of a top cross-sectional structure of a fluid connector in FIG. Figure 4 A schematic diagram of a female terminal structure provided in some embodiments of the present invention; Figure 5 A schematic diagram of the structure of a male terminal provided in some embodiments of the present invention; Figure 6 A schematic structural diagram of a female end valve stem of a fluid connector provided in some embodiments of the present invention; Figure 7 A schematic structural diagram of a male end piston of a fluid connector provided in some embodiments of the present invention; Figure 8 for Figure 7 Schematic diagram of the right view of the male end piston.

[0046] like Figure 1-Figure 3 As shown, a fluid connector is provided, which can be a low pressure drop fluid connector. Figure 1 A schematic diagram of the structure of a fluid connector after docking provided by some embodiments of the present invention, Figure 2 A schematic diagram of the structure of a fluid connector before docking provided by some embodiments of the present invention; Figure 3 for Figure 2 The schematic diagram of the cross-sectional structure of the fluid connector in the top view. The fluid connector includes a female end structure 100 and a male end structure 200, wherein before the male end structure 200 and the female end structure 100 are docked, their respective docking interfaces are closed, and after the docking is completed, the internal movable parts can be pushed to move respectively, so that their respective docking interfaces are opened and the docking is completed.

[0047] In some embodiments, the female end structure 100 mainly includes a female end body 1, a female end valve sleeve 2, a female end valve stem 3 and a female end elastic member 4. The female end valve stem 3 is fixed in the female end body 1, and the female end valve sleeve 2 is movable in the female end body 1, and the female end elastic member 4 is arranged between the female end body 1 and the female end valve sleeve 2.

[0048] The end of the female valve stem 3 has a female front column 3-1 and a female rear rod 3-2, wherein the diameter of the female front column 3-1 is larger than the diameter of the female rear rod 3-2. The inner hole of the sealing portion 2-1 of the female valve sleeve 2 matches the outer diameter of the female front column 3-1 so that they can be in sealed contact with each other; the outer wall of the sealing portion 2-1 matches the docking interface of the female body 1 so that they can be in sealed contact with each other. That is, a female interface annular gap is formed between the female front column 3-1 and the docking interface of the female body 1, and when sealing, the sealing portion 2-1 of the female valve sleeve 2 is filled in the female interface annular gap to achieve sealing. When the female valve sleeve 2 is pushed by external force to deform the female elastic member 4, it retreats from the annular gap of the female interface and enters the sealing portion 2-1 which is sleeved on the female rear rod 3-2. At this time, because the outer diameter of the female rear rod 3-2 is smaller than the inner diameter of the sealing portion 2-1, a cavity is formed between them to allow fluid to flow therein. At this time, because the annular gap of the female interface is opened, the annular gap of the female interface is connected with the rear connection port through the cavity formed at the rod.

[0049] In some embodiments, the male end structure 200 includes a male end body 5, a male end piston 6 and a male end elastic member 7. The male end piston 6 is movably arranged in the male end body 5, and the male end elastic member 7 is used to prevent the male end piston 6 from moving inward to prevent the male end piston 6 from detaching from the interface of the male end body 5. The male end body 5 includes a front end barrel 5-1, wherein the outer diameter of the front end barrel 5-1 matches the docking interface of the front end barrel 5-1 and the docking interface of the female end body 1 so that both can be sealed and contacted, and the outer diameter of the front end barrel 5-1 is also the same as the outer diameter of the sealing part 2-1. The inner side of the docking interface of the front end barrel 5-1 is reamed to form a rear end reamed hole 5-2. The diameter of the rear end reamed hole 5-2 is larger than the outer diameter of the female end front column 3-1, so that when it is sleeved on the female end front column 3-1, a gap can be formed between the female end front column 3-1 to facilitate fluid flow. The male end front column portion 6-1 on the male end piston 6 cooperates with the docking interface of the above-mentioned front end barrel portion 5-1, so that the male end front column portion 6-1 can seal the docking interface of the front end barrel portion 5-1. When the male end piston 6 moves inward, the above-mentioned male end elastic member 7 is elastically deformed to store force, and the male end front column portion 6-1 enters the rear end expansion hole 5-2. Since the diameter of the rear end expansion hole 5-2 is relatively large, a gap is formed between the rear end expansion hole 5-2 and the above-mentioned male end front column portion, so that the fluid on the front side of the male end piston 6 can communicate with the fluid on the rear side through the above-mentioned gap.

[0050] In some embodiments, Figure 2As shown, before docking, the states in the female end structure 100 and the states in the male end structure 200 are respectively as follows. In the female end structure 100, the female end elastic member 4 drives the female end valve sleeve 2 therein to move forward to fill the female end interface annular gap formed between the female end front column portion 3-1 and the docking interface of the female end body 1 to seal, that is, at this time, the outer wall of the sealing portion 2-1 of the female end valve sleeve 2 is in sealing contact with the inner wall of the docking interface of the female end body 1, and the inner wall is in sealing contact with the outer diameter of the female end front column portion 3-1. In the context, the sealing contact can be direct sealing contact or indirect sealing contact through a sealing ring. In the male end structure 200, the male end elastic member 7 pushes the male end piston 6 therein to move to the docking interface of the front end barrel portion 5-1. At this time, the male end front column portion 6-1 of the male end piston 6 is filled into the docking interface. Because the outer wall is in sealing contact with the inner wall of the docking interface, they are sealed and connected.

[0051] like Figure 1 As shown, the docking is completed. That is, when docking, the male end structure 200 is pushed to move into the female end structure 100, and the two generally need to be coaxially arranged. During the forward movement, because the male end piston 6 and the female end valve stem 3 are in contact and cannot move relative to the female end body 1, the female end valve sleeve 2 is thrusted by the front end barrel 5-1 of the male end body 5, and the thrust will overcome the elastic force of the female end elastic member 4 to push the female end valve sleeve 2 to move forward relative to the female end body 1. At this time, the male end elastic member 7 will be blocked by the male end piston 6 and cannot move forward, so the male end body 5 will force the male end elastic member 7 to deform elastically so that the male end body 5 can continue to move toward the female end body 1. As the male end body 5 moves forward, the front end interface portion will enter the above-mentioned female end interface annular gap, and the interface portion of the male end body 5 will seal the above-mentioned female end interface annular gap. Then the male end body 5 continues to move forward until the above-mentioned rear end expansion hole 5-2 is located at the female end front column part 3-1, and the interface part on the male end body 5 is located at the female end rear rod part 3-2. At this time, because the diameter of the rear end expansion hole 5-2 is larger than the inner diameter of the female end front column part 3-1, a gap is formed between them. Because the inner diameter of the interface part of the male end body 5 is larger than the outer diameter of the female end rear rod part 3-2, a gap is also formed between them. At this time, the female end structure 100 and the male end structure 200 are internally connected and then docked.

[0052] In some embodiments, Figure 1-Figure 6 As shown, Figure 6 A schematic diagram of the structure of a female valve stem of a fluid connector provided in some embodiments of the present invention, wherein the female valve stem of the fluid connector comprises a female rear stem portion 3-2, a female front column portion 3-1, a flat portion 3-3 and a support column 3-4.

[0053] The outer contour of the female front column 3-1 is as described above, which matches the inner side surface of the sealing portion 2-1 of the female valve sleeve 2 to achieve sealing contact, and the matching surface is mainly a cylindrical surface or an arc surface, so that the female front column 3-1 and the female body 1 form the above-mentioned female interface annular gap. Of course, the matching surfaces on both sides of the female interface annular gap can also be serrated surfaces or other structures, or the cross-section of the female interface annular gap can also be triangular or other irregular shapes.

[0054] The rear rod portion 3-2 of the female end is arranged at the rear end of the front column portion 3-1 of the female end. The cross section of the rear rod portion 3-2 of the female end is smaller than the cross section of the front column portion 3-1 of the female end, so that when the sealing portion 2-1 moves to this place, a conducting channel connected to the above-mentioned annular gap of the female end interface can be formed. There are two ways here: one way is that the cross-sectional profile of the rear rod portion 3-2 of the female end is smaller than the cross-sectional profile of the front column portion 3-1 of the female end, so that a corresponding gap is formed between the sealing portion 2-1 and the rear rod portion 3-2 of the female end, which serves as a conducting channel connected to the above-mentioned annular gap of the female end interface; the other way is that a groove or hole is set on the rear rod portion 3-2 of the female end as a conducting channel to pass through to the rear port of the rear side female end structure 100, and the groove or hole forms an opening at the front column portion 3-1 of the female end, so that when the sealing portion 2-1 is retracted to the rear rod portion 3-2 of the female end, the opening is connected to the above-mentioned annular gap of the female end interface.

[0055] The rear end of the female end rear rod 3-2 has a flat portion 3-3 capable of guiding the fluid forward, that is, the fluid from the rear to the front is guided through the flat portion 3-3 to be introduced into the above-mentioned conducting channel. That is, when the fluid introduced from the opening at the other end of the female end body 1 enters the flat portion 3-3, it is guided through the two side surfaces or one side surface in the thickness direction of the flat portion 3-3 to reduce the fluid resistance.

[0056] In some embodiments, a laterally extending support column 3-4 is provided on both sides of the flat portion 3-3 in the width direction, for fixed connection to the female end body 1. That is, the entire female end valve stem 3 is fixedly connected to the female end body 1 through the support column 3-4 to ensure that the shape and position of the annular gap of the female end interface are stable in the current position, thereby ensuring the docking of the male end structure 200 and the female end structure 100 in the later stage, and ensuring the sealing contact between the sealing portion 2-1 and the female end front column portion 3-1.

[0057] In the female valve stem provided in some embodiments, the female valve stem 3 may also be connected without passing through the above-mentioned support columns 3-4. For example, the female valve stem 3 may be welded or integrally formed with the female body 1, and for example, both sides of the flat portion 3-3 in the width direction may be welded or integrally formed with the female body 1.

[0058] In the female valve stem provided in some embodiments, when the female valve stem 3 of the above-mentioned fluid connector is used, because a flat portion 3-3 is used on the female rear stem portion 3-2, the two side surfaces of the flat portion 3-3 in the thickness direction can be used for flow diversion, and the support columns 3-4 on both sides of the width direction of the flat portion 3-3 can be used for fixation, and therefore the support columns 3-4 on both sides of the width direction will not interfere with the flow of the fluid, so the fluid flow performance is guaranteed as a whole. Therefore, in the female valve stem 3, flow diversion is provided on both sides of the flat portion 3-3 in the thickness direction, and the support columns connected to the edges on both sides in the width direction are used for fixation, so that while ensuring fixation, a very good flow diversion effect is achieved. In summary, the female valve stem 3 of the fluid connector can effectively solve the problem of poor flow diversion effect at the rear end connection of the female valve stem 3.

[0059] In the female valve stem provided in some embodiments, the structure of the front end of the female valve stem 3, that is, the structure of the female rear stem portion 3-2 and the female front column portion 3-1 can be set as needed, and the rear end of the female valve stem 3 adopts the above-mentioned flat portion 3-3 and the support column 3-4, and the flat portion 3-3 is mainly used for side flow guidance on both sides in the thickness direction, and the support columns 3-4 are connected to both sides in the width direction.

[0060] In the female valve stem provided in some embodiments, in order to facilitate the positioning of the entire female valve stem 3 through the flat portion 3-3 to ensure the accuracy of the installation position of the female valve stem 3. The side portions on both sides of the width direction of the flat portion 3-3 can form a matching arc surface 3-3-1 on the rear side of the support column 3-4; the matching arc surfaces 3-3-1 on both sides of the flat portion 3-3 are located on the same cylindrical surface, and are coaxially arranged with the female front column portion 3-1, and the two ends of at least one diameter of the above cylindrical surface are respectively located in the middle of the matching arc surfaces 3-3-1 on both sides, so as to ensure that the matching arc surfaces 3-3-1 on both sides can match with the corresponding cylindrical holes, and are radially limited to each other for relative fixation. Specifically, it is preferred that the matching arc surfaces 3-3-1 on both sides are centrally symmetrically arranged.

[0061] In the female valve stem provided in some embodiments, in order to ensure smooth fluid flow and strength, the width of the flat portion 3-3 can be gradually reduced on the front side of the support column 3-4, and the thickness remains unchanged, so that the smallest width end is connected to the female rear stem 3-2, and the two sides in the width direction are close to each other, so that it can play a role in guiding the flow, and the thickness remains unchanged, which can fully ensure that there is enough space on both sides in the thickness direction to accommodate the fluid. Here, the thickness of the flat portion 3-3 on the front side of the support column 3-4 can be equal to the diameter of the female rear stem 3-2.

[0062] In the female valve stem provided in some embodiments, in order to make the flat portion 3-3 have a better guiding effect, the two side planes of the flat portion in the thickness direction can be gradually approached in the backward direction until they are connected. Specifically, the flat portion can be at the rear side of the support column 3-4, and the two side planes in the thickness direction can be gradually approached in the backward direction until they are connected. When the fluid enters the rear end of the female valve stem 3, it begins to be guided by the two side planes of the flat portion 3-3, and is gradually guided until it is connected to the support column 3-4, and then the flat portion 3-3 does not need to be guided anymore.

[0063] In the female valve stem provided in some embodiments, in order to ensure the sealing effect between the sealing portion 2-1 and the female front column portion 3-1, an annular groove can generally be opened on the side of the female front column portion 3-1 to place the first sealing ring 8.

[0064] In some embodiments, Figure 4 , a female end structure 100 of a fluid connector is provided, comprising a female end body 1, a female end valve sleeve 2 and a female end elastic member 4, which also comprises a female end valve stem 3 of any of the above embodiments, the female end valve stem 3 is connected to the female end body 1, the female end front column 3-1 of the female end valve stem 3 forms a female end interface annular gap at the interface with the female end body 1, the female end valve sleeve 2 can be movably arranged in the female end body 1, and is connected to the female end body 1 through the female end elastic member 4, and the female end valve sleeve 2 has a sealing portion 2-1 that matches the female end interface annular gap. Among them, the female end elastic member 4 is generally a compression spring, and of course it can also be a tensile elastic member, so as to ensure that the sealing portion 2-1 of the female end valve sleeve 2 is driven to fill the above female end interface annular gap.

[0065] In the female end structure 100 provided in some embodiments, in order to better center the female end valve stem 3, the portion of the female end valve stem 3 on the rear side of the support column 3-4 can be matched with the inner wall surface of the female end body 1 therein for lateral positioning, that is, through the above-mentioned cooperation, the lateral relative fixation can be ensured, that is, the relative fixation of the two can be ensured in both the width direction of the flat part and the thickness direction of the flat part. In some embodiments, the matching arc surfaces 3-3-1 on both sides of the flat part 3-3 of the female end valve stem 3 can be matched with the inner wall surface of the female end body 1 so that the two form a rotational matching relationship, and as mentioned above, the spacing between the matching arc surfaces 3-3-1 on both sides in the width direction is the diameter of the above-mentioned matching arc surfaces 3-3-1, so that centering can be achieved through matching contact.

[0066] In the female end structure 100 provided in some embodiments, in order to facilitate the installation of the female end valve stem 3, the female end body 1 includes a rear cap 1-1 and a docking sleeve 1-2 detachably connected to the rear cap 1-1, and a docking port is provided inside the docking sleeve 1-2, and the female end valve sleeve 2 is placed, that is, the docking sleeve 1-2 is sleeved on the female end valve sleeve 2. The front end of the rear cap 1-1 is sleeved on the docking sleeve 1-2, and the two can be threadedly connected or snap-fitted. The bottom of the rear cap 1-1 is crimped with the docking tube 1-2 to fix the support column, that is, the rear cap 1-1 and the docking tube 1-2 apply force on the front and rear sides of the support column 3-4, which can effectively prevent the support column 3-4 from moving forward and backward, and can further use the matching contact of the above-mentioned matching arc surface 3-3-1 to make the female end valve stem 3 only able to rotate around its own axis. If the front column part 3-1 of the female end is a cylindrical part at this time, the rotation of the female end valve stem 3 will not bring about changes in the seal. Of course, the axis rotation can also be limited by other structures. The middle part of the rear cap 1-1 has a guide channel, and the inner wall of the guide channel is in matching contact with the above-mentioned matching arc surface 3-3-1. Furthermore, a groove for accommodating the support column 3-4 may be provided at the bottom of the rear cap portion 1-1 and / or the rear end face of the docking tube 1-2. In order to better ensure the fit, it is preferred that a groove for accommodating the support column 3-4 is provided at the bottom of the rear cap portion 1-1, and the female end elastic member 4 is against the bottom of the rear cap portion 1-1.

[0067] like Figure 1-5 As shown, in the fluid connector provided in some embodiments, the male end structure 200 is also provided correspondingly, and includes the female end structure 100 in any of the above embodiments, or includes the female end valve stem 3 in any of the above embodiments. The male end structure 200 in the fluid connector includes a male end body 5, a male end piston 6 and a male end elastic member 7, and the front end of the male end body 5 has a front end interface portion 5-3 that matches the female end interface annular gap of the female end structure 1, that is, the front end interface portion 5-3 is the front end portion of the front end barrel portion 5-1. And the rear inner side of the front end interface portion 5-3 forms a rear end expansion hole 5-2 so that when it moves to the female end interface annular gap, a gap for fluid flow is formed between the female end front column portion 3-1. The male end piston 6 is movably connected to the male end body 5 through the male end elastic member 7, so that when the front end interface portion 5-3 moves to the annular gap of the female end interface, the male end piston 6 cannot move forward because it abuts against the female end front column portion 3-1 of the female end valve stem 3, so that the male end body 5 moves forward relative to the male end piston 6, and at this time the male end elastic member 7 therein is compressed.

[0068] In the fluid connector provided in some embodiments, it can further include a first locking bead 9, a sliding sleeve 11 and a locking elastic member 12, wherein the first locking bead 9 is laterally movably connected to the female end body 1 of the female end structure 100, so that it can move laterally in the female end body 1, so as to be able to enter and exit the locking groove 5-4. The sliding sleeve 11 is slidably connected to the female end body 1 in the front-to-back direction, so that it can slide back and forth to enter and exit the locking position, and the sliding sleeve 11 can prevent the first locking bead 9 from escaping from the locking groove 5-4 when it is in the locking position. The locking elastic member 12 is used to prevent the sliding sleeve 11 from escaping from the locking position, so that when the sliding sleeve 11 escaping from the locking position, it can be elastically deformed, so that when the external force is removed from the sliding sleeve 11, it can push the sliding sleeve 11 into the locking position. The locking elastic member 12 can be a spring or other elastic body, such as a compression spring, a tension spring, etc.

[0069] The outer side of the male end body 5 is provided with a locking groove 5-4 matched with the first locking bead 9, and when the male end structure 200 and the female end structure 100 are docked, the first locking bead 9 can enter the locking groove 5-4, and after the first locking bead 9 enters the locking groove 5-4, the male end body 5 and the female end body 1 are relatively fixed in the front-to-back direction, so that the male end structure 200 and the female end structure 100 cannot be disconnected from the docking. When the sliding sleeve 11 is in the locking position, it can prevent the first locking bead 9 from being separated from the locking groove 5-4, and when the sliding sleeve 11 slides relative to the female end body 1 to be separated from the locking position, the first locking bead 9 can be separated from the locking groove 5-4, so that the male end structure 200 and the female end structure 100 can be detached, that is, the male end body 5 can be separated from the female end body 1.

[0070] In the fluid connector provided in some embodiments, in order to facilitate automatic docking, there is no need to operate the sleeve 11 separately during docking. Here, it is preferred to further include a second locking bead 10 that can be laterally movably connected to the female end body 1. When the sleeve 11 is in the locking position, the inner guide bevel 11-1 of the sleeve 11 abuts against the second locking bead 10. The male end body 5 is provided with a push bevel 5-5 on the front side of the locking groove 5-4, so that when the push bevel 5-5 moves into the female end body 1, the second locking bead 10 can be pushed to move laterally outward, and when the second locking bead 10 moves laterally outward, the inner guide bevel 11-1 can be pushed forward and backward to make the sleeve 11 disengage from the locking position, thereby making the first locking bead 9 disengage from the locking groove 5-4.

[0071] That is, as attached Figure 1-2As shown, the sliding sleeve 11 is sleeved on the outer side of the docking sleeve 1-2 and slidably fits therewith, and the locking elastic member 12 is sleeved on the outer side of the docking sleeve 1-2 and is located on the inner side of the sliding sleeve 11, with one end abutting against the inner shoulder of the sliding sleeve 11 and the other end abutting against the front end of the rear cap portion 1-1. A conical surface is formed on the inner side of the front end of the sliding sleeve 11 as an inner guide slope 11-1, and a plurality of first locking beads 9 and a plurality of second locking beads 10 are evenly arranged in the axial direction of the female end body 1.

[0072] During the insertion process of the male end structure 200, the second locking bead 10 pushes the inner guiding slope 11-1 of the sliding sleeve 11, which can cause the sliding sleeve 11 to retreat, unlocking the first locking bead 9, and the male end structure 200 can continue to move forward, the female end valve sleeve 2 retreats, and the front end interface part 5-3 penetrates into the docking tube 1-2 until the male end structure 100 is inserted to the bottom, until the restriction on the second locking bead 10 and the first locking bead 9 is released, the groove on the outside of the front end barrel 5-1 coincides with the position of the first locking bead 9, and the first locking bead 9 falls back to the locking groove 5-4 on the outside of the front end barrel 5-1, and at the same time, under the action of the elastic force of the locking elastic member 12, the sliding sleeve 11 moves forward along the female end body 1, passes through the position of the first locking bead 9, until it slides to the locking position, blocks the first locking bead 9, and prevents the first locking bead 9 from loosening the male end, forming a self-locking.

[0073] When it is necessary to dismantle, hold the sliding sleeve 11 and move it backward until the opening of the sliding sleeve 11 is away from the first locking bead 9, unlock the lock on the position of the first locking bead 9, and the female end elastic member 4 pushes the female end valve sleeve 2 and the male end body 5 to retreat, and the male end body 5 leaves the female end. After the male and female ends are separated, each realizes self-sealing. At the same time, the locking elastic member 12 pushes the sliding sleeve 11 forward, covering the first locking bead 9, and making the inner guide bevel 11-1 stop at the second locking bead 10.

[0074] Also like Figure 1 , 2 As shown in Figures 3, 5, 7, and 8, in the fluid connector provided in some embodiments, the male end piston 6 can include the male end front column portion 6-1 and the male end rear rod portion 6-2 coaxially arranged with the male end front column portion 6-1, and the male end rear rod portion 6-2 is evenly arranged with a plurality of radially extending vertical plate portions 6-3 along the circumferential direction, and the outer edge of each of the vertical plate portions 6-3 is in contact with the rear end expansion hole 5-2. The support effect can be greatly improved by supporting with the radially extending vertical plate portions 6-3. Of course, the male end piston 6 can also include only the male end front column portion 6-1 and the support rod portion extending backward, and a plurality of support rod portions evenly arranged circumferentially can be arranged on the rear side of the male end front column portion 6-1 to cooperate with the rear end expansion hole 5-2.

[0075] In the fluid connector provided in some embodiments, the male end rear rod portion 6-2 can be connected to the male end front column portion 6-1 through the guide truncated cone portion 6-4 to form a continuous contraction, so that there is a better guide effect between the male end rear rod portion 6-2 and the male end front column portion 6-1. Preferably, the front end of the vertical plate portion 6-3 is closely connected to the guide truncated cone portion 6-4 to ensure that the vertical plate portion 6-3 has a stronger connection strength.

[0076] In the fluid connector provided in some embodiments, in order to have a better flow guiding effect, the rear end of the male end rear rod portion 6-2 may be formed into a conical structure to guide the fluid.

[0077] like Figure 7-8 As shown, in the male end piston of the male end structure provided in some embodiments, it includes a male end front column portion 6-1 and a male end rear rod portion 6-2 coaxially arranged with the male end front column portion 6-1, and the male end rear rod portion 6-2 is evenly arranged with a plurality of radially extending vertical plate portions 6-3 along the circumferential direction, and the outer edges of each of the vertical plate portions 6-3 are located on the same cylindrical surface, and can also cooperate with the inner wall of the above-mentioned rear end expansion hole 5-2.

[0078] In the male end piston of the male end structure provided in some embodiments, the male end rear rod portion 6-2 is connected to the male end front column portion 6-1 through a guide cone portion 6-4 to form continuous contraction; and the front end of the vertical plate portion 6-3 is closely connected to the cone portion.

[0079] In the male end piston of the male end structure provided in some embodiments, the rear end of the male end rear rod portion 6 - 2 forms a conical structure to guide the fluid.

[0080] In the male end piston of the male end structure provided in some embodiments, a step surface is formed on the vertical plate portion 6 - 3 ; and the step surfaces on each vertical plate portion 6 - 3 are all located on the same cylindrical surface, so that the male end elastic member 7 can be sleeved.

[0081] In the male end piston of the male end structure provided in some embodiments, the thickness of the vertical plate portion 6 - 3 gradually decreases in the radial outward direction to ensure a better flow guide space.

[0082] In the male end piston of the male end structure provided in some embodiments, the male end front column portion 6-1 may be provided with an annular groove for accommodating the second sealing ring 13 to seal the inner hole of the front end interface portion 5-3.

[0083] It should be noted that the front-to-back direction in this context is the docking direction, that is, the direction on the male end structure toward the female end structure is the forward direction, and the direction on the female end structure toward the male end structure is the forward direction.

[0084] 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.

[0085] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A female end valve stem of a fluid connector, comprising a female end rear stem portion and a female end front column portion arranged at the front end of the female end rear stem portion, characterized in that: The rear end of the female end rear rod portion has a flat portion capable of directing flow forward; the diameter of the female end front column portion is greater than the diameter of the female end rear rod portion.

2. The female end valve stem of the fluid connector according to claim 1, characterized in that: The flat portion has laterally extending support columns on both sides in the width direction for fixed connection to the female end body.

3. The female end valve stem of the fluid connector according to claim 2, characterized in that: The side portions on both sides of the flat portion in the width direction form matching arc surfaces on the rear side of the support column; the matching arc surfaces are located on the same cylindrical surface and are respectively located at both ends in the diameter direction, and are coaxially arranged with the front column portion of the female end.

4. The female end valve stem of the fluid connector according to claim 3, characterized in that: The flat portion is gradually reduced in width at the front side of the support column, and its thickness remains unchanged.

5. The female end valve stem of the fluid connector according to any one of claims 1 to 4, characterized in that: The two side planes of the flat portion in the thickness direction gradually approach each other in the rearward direction until they are connected.

6. The female end valve stem of the fluid connector according to claim 5, characterized in that: An annular groove is provided on the side surface of the front column portion of the female end for accommodating a sealing ring.

7. A female end structure of a fluid connector, comprising a female end body, a female end valve sleeve and a female end elastic member, characterized in that: It also includes a female end valve stem as described in any one of claims 2 to 6, wherein the female end valve stem is connected to the female end body, and a female end interface annular gap is formed at the interface between the female end front column portion of the female end valve stem and the female end body, the female end valve sleeve can be movably arranged in the female end body, and is connected to the female end body through the female end elastic member, and the female end valve sleeve has a sealing portion that matches the female end interface annular gap.

8. The female end structure of the fluid connector according to claim 7, characterized in that: The matching arc surfaces on both sides of the flat portion of the female end valve stem are in matching contact with the inner wall surface of the female end body, and centering is achieved through the matching contact.

9. The female end structure of the fluid connector according to claim 8, characterized in that: The female end body includes a rear cap portion and a docking sleeve detachably connected to the rear cap portion, a docking port is provided inside the docking sleeve, and the above-mentioned female end valve sleeve is placed thereon, and the front end of the rear cap portion is sleeved on the docking sleeve; the bottom of the rear cap portion is crimped and fixed to the supporting column of the female end valve stem by the docking sleeve; a guide channel is provided in the middle portion of the rear cap portion, and the inner wall of the guide channel is in mating contact with the mating arc surface.

10. The female end structure of the fluid connector according to claim 9, characterized in that: The bottom of the rear cap is provided with a groove for accommodating the support column, and the female end elastic member abuts against the bottom of the rear cap.

11. A fluid connector, comprising a male end structure, characterized in that: It also includes the female end structure as described in any one of claims 7 to 10, wherein the male end structure includes a male end body, a male end piston and a male end elastic member, the front end of the male end body has a front end interface portion that matches the annular gap of the female end interface of the female end structure, and a rear end expansion hole is formed on the rear inner side of the front end interface portion to form a gap for fluid flow when moving into the annular gap of the female end interface, and the male end piston is movably connected to the male end body through the male end elastic member.

12. The fluid connector according to claim 11, characterized in that The locking member is configured to move relative to the female end body of the male end structure to move relative to the female end body, and the locking member is configured to move relative to the female end body to move relative to the female end body. The locking member is configured to move relative to the female end body to move relative to the female end body, and the locking member is configured to move relative to the female end body to move relative to the female end body.

13. The fluid connector according to claim 12, characterized in that: The cam is configured to move the second locking bead toward the locking cam of the locking cam, and the cam is configured to move the second locking bead toward the locking cam of the locking cam.

14. The fluid connector according to any one of claims 11 to 13, characterized in that: The male end piston includes a male end front column portion and a male end rear rod portion coaxially arranged with the male end front column portion. The male end rear rod portion is evenly arranged with a plurality of radially extending vertical plate portions along the circumferential direction, and the outer edge of each of the vertical plate portions is in contact with and cooperates with the rear end expansion hole.

15. The fluid connector according to claim 14, characterized in that The male end rear rod portion is connected to the male end front column portion through a flow guiding frustum portion to form a continuous contraction; the front end of the vertical plate portion is closely connected to the flow guiding frustum portion.

16. The fluid connector according to claim 14, characterized in that The rear end of the male end rear rod portion forms a conical structure to guide the fluid.

17. The fluid connector according to claim 14, characterized in that The outer edges of the vertical plate parts are all located on the same cylindrical surface.

18. The fluid connector according to claim 14, characterized in that A step surface is formed on the vertical plate portion; and the step surfaces on each of the vertical plate portions are located on the same cylindrical surface so that the male end elastic member can be sleeved.

19. The fluid connector according to claim 14, characterized in that The thickness of the vertical plate portion gradually decreases in the radial outward direction.

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