Detachable fluid connector

Abstract

The utility model relates to the technical field of fluid connectors, and provides a detachable fluid connector which comprises a female connector, a male connector and a limiting mechanism arranged on the female connector and / or the male connector. The female connector is provided with an insertion hole extending in the preset direction, and the female connector is provided with a first liquid hole communicated with the insertion hole. The male connector is provided with a rod body which is matched with the inserting hole and can be inserted into the inserting hole in the preset direction, and the male connector is provided with a second liquid hole; the rod body is inserted into the inserting hole, the first liquid hole is communicated with the second liquid hole, and the limiting mechanism can limit axial movement of the rod body and / or limit circumferential rotation of the rod body.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid joints, and more specifically relates to a detachable fluid joint. Background Art

[0002] At present, some high-value consumables in the industrial or medical fields often need to be replaced as a whole due to the failure of weak link components after a certain period of use, which makes it inconvenient to replace related modules. This also leads to high use costs of related high-value consumables and a large amount of idle / wasted resources. In order to facilitate the replacement of components, different components are usually connected in a detachable manner. In order to facilitate the disassembly and assembly of liquid pathway components, liquid pathways are usually connected by plug-in, such as the male and female heads are plugged in to achieve the connection of the liquid pathway. However, the plug-in between the male and female heads is very fragile and can easily become loose. Utility Model Content

[0003] The utility model aims to provide a detachable fluid connector to solve the technical problem in the prior art that the connector plug connection is easy to loosen.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a detachable fluid connector, including: a female connector, a male connector, and a limiting mechanism arranged on the female connector and / or the male connector; the female connector has a socket extending in a predetermined direction, and the female connector has a first liquid hole connected to the socket; the male connector has a rod body that is adapted to the socket and can be inserted into the socket along the predetermined direction, and the male connector has a second liquid hole; the rod body is inserted into the socket, the first liquid hole and the second liquid hole are connected, and the limiting mechanism can limit the axial movement of the rod body and / or limit the circumferential rotation of the rod body.

[0005] Furthermore, the limiting mechanism comprises: a slot provided on the male connector and a movable protrusion provided on the female connector; the protrusion is inserted into the slot.

[0006] Furthermore, the limiting mechanism also includes: a raised portion arranged on the outer surface of the rod body, a second annular groove arranged on the inner wall of the socket, a guide groove connected to the second annular groove and extending to the end face of the female connector, and an elastic member located on one side of the female connector and extending into the second annular groove; the clamping groove is opened on the raised portion, and the convex portion is arranged on the elastic member.

[0007] Furthermore, the card slot may be any one of square, semicircular, and diamond-shaped.

[0008] Furthermore, the protrusion enters the second annular groove through the guide groove, and the protrusion can be rotated into a fixed position in the second annular groove along with the rod body; when the protrusion is located at the fixed position, the elastic member enters the clamping groove of the protrusion to limit the rotation of the protrusion.

[0009] Furthermore, the socket has a columnar chamber, and the rod body is provided with a column; the column is inserted in the columnar chamber; a sealing ring is sleeved on the column; the column and the inner wall of the columnar chamber are sealed by the sealing ring; the second liquid hole penetrates the column along the axial direction of the column and is connected with the first liquid hole.

[0010] Further, the limiting mechanism includes: a sliding member, a first spring fixed to the female joint, and a first sliding groove is arranged on the female joint; the sliding member is slidably arranged in the first sliding groove; the middle section of the first sliding groove has a first opening connected to the socket, and the first opening has a space avoidance groove, and the diameter of the space avoidance groove matches the diameter of the rod body; the rod body has a first positioning groove matching the first opening.

[0011] Further, the number of the sliding members, the number of the first sliding grooves, the number of the first openings, and the number of the first positioning grooves are two respectively; the two sliding members, the two first sliding grooves, the two first openings, and the two first positioning grooves correspond one to one respectively.

[0012] Further, the female connector has a columnar surface surrounding the outside of the plug hole and having an axial direction in the predetermined direction;

[0013] The limiting mechanism includes: a first ring body sleeved on the outer side of the cylindrical surface and slidable relative to the cylindrical surface, a second spring sleeved on the outer side of the cylindrical surface, a second ring body sleeved on the outer side of the cylindrical surface and slidable relative to the cylindrical surface, a first limiting piece arranged on the outer surface of the cylindrical surface, a second limiting piece arranged on the outer surface of the cylindrical surface, and a positioning rod; a second sliding groove is provided on the cylindrical surface, a middle section of the second sliding groove has a second opening connected to the insertion hole, a second positioning groove connected to the second opening is provided on the outer surface of the rod body, the positioning rod is slidably provided in the second sliding groove, and the middle section of the positioning rod can extend into the second opening and be stuck in the second positioning groove; both ends of the positioning rod are located on the outer side of the second sliding groove;

[0014] In the axial direction of the cylindrical surface, the first stopper, the first ring body, the two ends of the positioning rod, the second ring body, the second spring, and the second stopper are arranged in sequence; the first ring body abuts against the first stopper;

[0015] The two side walls of the second chute are arranged parallel to each other; in the predetermined direction, the two side walls of the second chute gradually move away from the axis of the cylindrical surface;

[0016] The first ring body can move along the cylindrical surface between a second initial position and a second unlocking position; in the predetermined direction, the second unlocking position is located downstream of the second initial position; when the first ring body is located at the second initial position, the positioning rod is clamped in the second positioning groove; when the first ring body moves to the second unlocking position, the first ring body pushes the positioning rod to make the positioning rod slide out of the second positioning groove to the outside of the socket.

[0017] Furthermore, it also includes: a sleeve sleeved on the outer side of the cylindrical surface; the first ring body is arranged on the inner wall of the sleeve.

[0018] The beneficial effects of the detachable fluid connector provided by the utility model are as follows: compared with the prior art, the detachable fluid connector provided by the utility model has a socket on the female connector, and the socket extends in a predetermined direction; the male connector has a rod body, and the rod body can be inserted in the socket in a predetermined direction; the female connector has a first liquid hole, and the male connector has a second liquid hole; when the rod body is inserted in the socket, the first liquid hole and the second liquid hole are connected, and the liquid can flow along the first liquid hole and the second liquid hole; a limiting mechanism is provided on the female connector and / or the male connector; when the rod body is inserted in the socket, the limiting mechanism can limit the axial movement of the rod body relative to the rod body, and / or the limiting mechanism can limit the rotation of the rod body around the axis of the rod body; that is, the rod body can be locked by the limiting mechanism, thereby improving the firmness between the male connector and the female connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 labor.

[0020] Figure 1 A three-dimensional schematic diagram of a detachable fluid connector provided in the first embodiment Figure 1 ;

[0021] Figure 2 A three-dimensional schematic diagram of a detachable fluid connector provided in the first embodiment Figure 2 ;

[0022] Figure 3 A three-dimensional schematic diagram of a detachable fluid connector provided in the first embodiment Figure 3 ;

[0023] Figure 4 A three-dimensional schematic diagram of a detachable fluid connector provided in the first embodiment Figure 4 ;

[0024] Figure 5 A three-dimensional schematic diagram of a detachable fluid connector provided in the first embodiment Figure 5 ;

[0025] Figure 6 A schematic front view of a detachable fluid connector (elastic member hidden) provided in the first embodiment;

[0026] Figure 7 for Figure 6 Schematic diagram of the AA section;

[0027] Figure 8 A three-dimensional schematic diagram of a female connector provided in the first embodiment;

[0028] Fig. 9 A three-dimensional diagram of the cooperation between the male connector and the elastic member provided in the first embodiment Figure 1 ;

[0029] Fig.10 A three-dimensional diagram of the cooperation between the male connector and the elastic member provided in the first embodiment Figure 2 ;

[0030] Fig.11 A three-dimensional schematic diagram of a male connector provided in the first embodiment;

[0031] Fig.12 A three-dimensional schematic diagram of an elastic member provided in the first embodiment;

[0032] Fig.13 A three-dimensional schematic diagram of a detachable fluid connector provided in the second embodiment;

[0033] Fig.14 A three-dimensional schematic diagram of a detachable fluid connector (hidden female connector) provided in the second embodiment;

[0034] Fig.15 A three-dimensional schematic diagram of the cooperation between the male connector and the sliding member provided in the second embodiment;

[0035] Fig.16 A three-dimensional schematic diagram of a male connector provided in the second embodiment being inserted into a female connector;

[0036] Fig.17 A three-dimensional schematic diagram of a male connector provided in the second embodiment;

[0037] Fig.18 A three-dimensional schematic diagram of a detachable fluid connector provided in a third embodiment;

[0038] Fig.19 A schematic front view of a detachable fluid connector provided in a third embodiment;

[0039] Fig. 20 for Fig.19 Schematic diagram of the middle BB section;

[0040] Fig.21 A three-dimensional schematic diagram of a detachable fluid connector (with the sleeve and the first ring body hidden) provided in the third embodiment;

[0041] Fig. 22 A three-dimensional schematic diagram of a detachable fluid connector (hidden sleeve, first ring body, one positioning rod, second ring body) provided for the third embodiment;

[0042] Fig.23 A three-dimensional schematic diagram of a male connector provided in the third embodiment.

[0043] Among them, the reference numerals in the figure are:

[0044] 1, 1`, 1``-female connector; 11, 11``-first liquid hole; 12, 12``-insertion hole; 13-columnar chamber; 14``-columnar surface; 2, 2`, 2``-male connector; 21, 21``-second liquid hole; 22, 22`, 22``-rod body; 23-column body; 231-first annular groove; 24-sealing ring; 31-second annular groove; 32-protrusion; 321-slot; 33-notch; 34-elastic member; 341-slotting portion; 342-mounting hole; 343-pressing plate; 3431-assembly hole; 35-through hole; 41-sliding member; 42-first spring; 43-first slide groove; 431-first opening; 44-first positioning groove; 45-pressing plate; 51-sleeve; 521-first ring body; 522-second ring body; 53-second spring; 541-first limiting member; 542-second limiting member; 55-positioning rod; 56-second slide groove; 561-second opening; 57-second positioning groove. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be noted that, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. Among them, A and B can be singular or plural respectively.

[0048] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] Please also read Figures 1 to 12 The detachable fluid connector provided by the utility model is now described. The detachable fluid connector includes: a female connector 1, a male connector 2, and a limiting mechanism arranged on the female connector 1 and / or the male connector 2; the female connector 1 has a socket 12 extending in a predetermined direction, and the female connector 1 has a first liquid hole 11 connected with the socket 12; the male connector 2 has a rod body 22 adapted to the socket 12 and can be inserted into the socket 12 in a predetermined direction, and the male connector 2 has a second liquid hole 21; the rod body 22 is inserted into the socket 12, the first liquid hole 11 and the second liquid hole 21 are connected, and the limiting mechanism can limit the axial movement of the rod body 22 and / or limit the circumferential rotation of the rod body 22.

[0051] In this way, the female connector 1 has a socket 12, and the socket 12 extends in a predetermined direction; the male connector 2 has a rod body 22, and the rod body 22 can be inserted into the socket 12 in a predetermined direction (in one embodiment, the rod body 22 has the same shape as the socket 12); the female connector 1 has a first liquid hole 11, and the male connector 2 has a second liquid hole 21; when the rod body 22 is inserted into the socket 12, the first liquid hole 11 and the second liquid hole 21 are connected, and the liquid can flow along the first liquid hole 11 and the second liquid hole 21; a limiting mechanism is provided on the female connector 1 and / or the male connector 2; when the rod body 22 is inserted into the socket 12, the limiting mechanism can limit the axial movement of the rod body 22 relative to the rod body 22, and / or the limiting mechanism can limit the rotation of the rod body 22 around the axis of the rod body 22; that is, the rod body 22 can be locked by the limiting mechanism, thereby improving the firmness between the male connector 2 and the female connector 1.

[0052] In one embodiment, the insertion hole 12 extends along a predetermined direction. In one embodiment, the first liquid hole 11 extends along a predetermined direction. In one embodiment, the insertion hole 12 extends along a straight direction.

[0053] In one embodiment, the cross section of the plug hole 12 is circular. In one embodiment, the plug hole 12 is a cylindrical hole. In one embodiment, the rod body 22 is cylindrical. In one embodiment, the outer diameter of the rod body 22 is the same as the inner diameter of the plug hole 12.

[0054] In one embodiment, the liquid may flow from the first liquid hole 11 to the second liquid hole 21 , or the liquid may flow from the second liquid hole 21 to the first liquid hole 11 .

[0055] In one embodiment, the predetermined direction may be: a straight line extending in any direction.

[0056] In one embodiment, the limiting mechanism is provided on the female connector 1. In one embodiment, the limiting mechanism is provided on the male connector 2. In one embodiment, the limiting mechanism is provided on the female connector 1 and the male connector 2.

[0057] In one embodiment, the male connector 2 can be made of polymer, ceramic, stainless steel, aluminum alloy, copper alloy, titanium alloy, or composite material, and can be processed by injection molding, machining, sintering, die casting, powder metallurgy, or welding.

[0058] In one embodiment, the female connector 1 can be made of polymer, ceramic, stainless steel, aluminum alloy, copper alloy, titanium alloy, or composite material, and can be processed by injection molding, machining, sintering, die-casting, powder metallurgy, or welding.

[0059] For further information, see Figures 1 to 12As a specific embodiment of the detachable fluid connector provided by the utility model, the limiting mechanism includes: a slot 321 provided on the male connector 2 and a movable protrusion provided on the female connector 1; the protrusion is inserted into the slot 321. In this way, the male connector 2 and the female connector 1 can be limited by inserting the protrusion into the slot 321.

[0060] For further information, see Figures 1 to 12 As a specific embodiment of the detachable fluid connector provided by the utility model, the limiting mechanism also includes: a protrusion 32 arranged on the outer surface of the rod body 22, a second annular groove 31 arranged on the inner wall of the plug hole 12, a guide groove connected to the second annular groove 31 and extending to the end face of the female connector 1 (in one embodiment, the guide groove is a notch 33.), and an elastic member 34 extending into the second annular groove 31 is arranged on one side of the female connector 1; the clamping groove 321 is provided on the protrusion 32, and the convex part is arranged on the elastic member 34. In this way, the protrusion 32 can enter the second annular groove 31 through the guide groove, and after the protrusion 32 enters the second annular groove 31, the axial movement of the male connector 2 relative to the female connector 1 can be limited.

[0061] For further information, see Figures 1 to 12 As a specific implementation of the detachable fluid connector provided by the utility model, the slot 321 can be any one of square, semicircular, and diamond shapes.

[0062] For further information, see Figures 1 to 12 As a specific embodiment of the detachable fluid connector provided by the utility model, the protrusion 32 enters the second annular groove 31 through the guide groove, and the protrusion 32 can be screwed into the second annular groove 31 with the rod body 22 to a fixed position; when the protrusion 32 is located at the fixed position, the elastic member 34 enters the clamping groove 321 of the protrusion 32 to limit the rotation of the protrusion 32. In this way, the protrusion 32 can enter the second annular groove 31 through the guide groove, and the elastic member 34 can limit the rotation of the protrusion 32 after entering the clamping groove 321, and the elastic member 34 can also limit the rotation of the male connector 2 after entering the clamping groove 321.

[0063] For further information, see Figures 1 to 12 As a specific embodiment of the detachable fluid connector provided by the utility model, the plug hole 12 has a columnar chamber 13, and a column 23 is arranged on the rod 22; the column 23 is inserted in the columnar chamber 13; a sealing ring 24 is sleeved on the column 23; the column 23 and the inner wall of the columnar chamber 13 are sealed by the sealing ring 24; the second liquid hole 21 penetrates the column 23 along the axial direction of the column 23 and is connected with the first liquid hole 11. In this way, the rod-shaped rod 22 is very convenient to be inserted into the plug hole 12; the rod 22 is sleeved with a sealing ring 24, and the rod 22 and the inner wall of the plug hole 12 can be sealed by the sealing ring 24.

[0064] For further information, see Figures 13 to 17 As a specific embodiment of the detachable fluid connector provided by the utility model, the limiting mechanism includes: a sliding member 41, a first spring 42 fixed to the female connector 1', and a first slide groove 43 is provided on the female connector 1'; the sliding member 41 is slidably arranged in the first slide groove 43; the middle section of the first slide groove 43 has a first opening 431 connected to the plug hole 12, and the first opening 431 has an air avoidance groove, and the diameter of the air avoidance groove matches the diameter of the rod body 22'; the rod body 22' has a first positioning groove 44 matching the first opening 431. In this way, the sliding member 41 is connected to the female connector 1' through the first spring 42, the sliding member 41 is slidably arranged in the first sliding groove 43 on the female connector 1', and the sliding member 41 can slide between the first initial position and the first unlocking position; when the sliding member 41 is located at the first initial position, the sliding member 41 is inserted in the first positioning groove 44, and the sliding member 41 can prevent the rod body 22' from being pulled out of the socket 12; when the user pushes the sliding member 41 to move to the first unlocking position, the sliding member 41 slides out of the first positioning groove 44, and the rod body 22' can slide freely in the socket 12, so that the sliding member 41 releases the restriction on the rod body 22'; after the user releases the sliding member 41, the first spring 42 pushes the sliding member 41 to the first initial position.

[0065] For further information, see Figures 13 to 17 As a specific embodiment of the detachable fluid connector provided by the utility model, the number of the sliding members 41, the number of the first sliding grooves 43, the number of the first openings 431, and the number of the first positioning grooves 44 are two respectively; two sliding members 41, two first sliding grooves 43, two first openings 431, and two first positioning grooves 44 correspond to each other one by one. In this way, the two sliding members 41 can limit the rod body 22' from both sides.

[0066] For further information, see Figures 18 to 23As a specific embodiment of the detachable fluid connector provided by the utility model, the female connector 1`` has a cylindrical surface 14`` surrounding the outside of the plug hole 12 and with the axial direction in a predetermined direction; the limiting mechanism includes: a first ring body 521 sleeved on the outside of the cylindrical surface 14`` and slidable relative to the cylindrical surface 14``, a second spring 53 sleeved on the outside of the cylindrical surface 14``, a second ring body 522 sleeved on the outside of the cylindrical surface 14`` and slidable relative to the cylindrical surface 14``, and a stop mechanism 521 disposed on the outer surface of the cylindrical surface 14``. The first stopper 541, the second stopper 542 arranged on the outer surface of the cylindrical surface 14``, and the positioning rod 55; the cylindrical surface 14`` is provided with a second slide groove 56, the middle section of the second slide groove 56 has a second opening 561 connected to the insertion hole 12, the outer surface of the rod body 22`` is provided with a second positioning groove 57 connected to the second opening 561, the positioning rod 55 is slidably arranged in the second slide groove 56, and the middle section of the positioning rod 55 can extend into the second opening 561 and be stuck in the second positioning groove 57; the two ends of the positioning rod 55 are located The second slide groove 56 is outside; in the axial direction of the cylindrical surface 14``, the first limiter 541, the first ring body 521, the two ends of the positioning rod 55, the second ring body 522, the second spring 53, and the second limiter 542 are arranged in sequence; the first ring body 521 abuts against the first limiter 541; the two side walls of the second slide groove 56 are arranged parallel to each other; in a predetermined direction, the two side walls of the second slide groove 56 gradually move away from the axis of the cylindrical surface 14``; the first ring body 521 can be moved along the cylindrical surface 14`` in the second initial position and the first The first ring body 521 moves between two unlocking positions; in the predetermined direction, the second unlocking position is located downstream of the second initial position; when the first ring body 521 is located at the second initial position (in one embodiment, when the first ring body 521 is located at the second initial position, the first ring body 521 abuts against the first limit member 541), the positioning rod 55 is clamped in the second positioning groove 57; when the first ring body 521 moves to the second unlocking position, the first ring body 521 pushes the positioning rod 55 to make the positioning rod 55 slide out of the second positioning groove 57 to the outside of the socket 12.In this way, (the first ring body 521, the two ends of the positioning rod 55, the second ring body 522, and the second spring 53) are restricted between the first limiting member 541 and the second limiting member 542; the middle section of the second slide groove 56 has a second opening 561 connected to the socket 12, and the outer surface of the rod body 22`` is provided with a second positioning groove 57 connected to the second opening 561, and the positioning rod 55 is slidably arranged in the second slide groove 56 on the surface of the female connector 1``, ​​and the middle section of the positioning rod 55 can extend into the second opening 561 and be stuck in the second positioning groove 57, that is, when the positioning rod 55 slides along the second slide groove 56 and the middle section of the positioning rod 55 is stuck in the second positioning groove 57, the rod body 22`` can be prevented from being withdrawn from the socket 12; when the user pushes the first ring body 521 to move in the direction of the second limiting member 542, the first ring body 521 can The positioning rod 55 is pushed toward the second limit member 542 along the predetermined direction; because the two side walls of the second slide groove 56 gradually move away from the axis of the cylindrical surface 14`` in the predetermined direction, the positioning rod 55 moves farther and farther away from the axis of the cylindrical surface 14`` when the positioning rod 55 moves in the predetermined direction, until the positioning rod 55 leaves the socket 12 and releases the restriction on the rod body 22``; in summary: when the first ring body 521 is located at the second initial position, the positioning rod 55 is stuck in the second positioning groove 57; when the user moves the first ring body 521 to the second unlocking position, the second spring 53 is compressed, and the first ring body 521 pushes the positioning rod 55 and makes the positioning rod 55 slide out of the second positioning groove 57 to the outside of the through hole 35; after the user releases the first ring body 521, the second spring 53 pushes the first ring body 521 to the second initial position.

[0067] In one embodiment, the first limiting member 541 is a retaining spring disposed on the female connector 1 ″.

[0068] In one embodiment, the second limiting member 542 and the female connector 1" are integrally formed.

[0069] For further information, see Figures 18 to 23 As a specific embodiment of the detachable fluid connector provided by the utility model, it also includes: a sleeve 51 sleeved on the outside of the cylindrical surface 14''; a first ring body 521 is arranged on the inner wall of the sleeve 51. In this way, it is convenient for the user to hold the sleeve 51 and push the first ring body 521 to move through the sleeve 51.

[0070] In one embodiment, see Figures 1 to 12The detachable fluid connector includes: a female connector 1, a male connector 2, and a limiting mechanism arranged on the female connector 1 and / or the male connector 2; the female connector 1 has a socket 12 extending in a predetermined direction and being axially symmetrical, and the female connector 1 has a first liquid hole 11 connected to the socket 12; the male connector 2 has a rod body 22 adapted to the socket 12 and can be inserted into the socket 12 in a predetermined direction, and the male connector 2 has a second liquid hole 21; the rod body 22 is inserted into the socket 12, the first liquid hole 11 and the second liquid hole 21 are connected, and the limiting mechanism can limit the axial movement of the rod body 22 and / or limit the circumferential rotation of the rod body 22. In this way, the female connector 1 has a socket 12, the socket 12 extends in a predetermined direction, and the socket 12 is axially symmetrical; the male connector 2 has a rod body 22, the rod body 22 can be inserted into the socket 12 along a predetermined direction, and the rod body 22 has the same shape as the socket 12; the female connector 1 has a first liquid hole 11, and the male connector 2 has a second liquid hole 21; when the rod body 22 is inserted into the socket 12, the first liquid hole 11 and the second liquid hole 21 are connected, and the liquid can flow along the first liquid hole 11 and the second liquid hole 21; a limiting mechanism is provided on the female connector 1 and / or the male connector 2; when the rod body 22 is inserted into the socket 12, the limiting mechanism can limit the axial movement of the rod body 22 relative to the rod body 22, and / or the limiting mechanism can limit the rotation of the rod body 22 around the axis of the rod body 22; that is, the rod body 22 can be locked by the limiting mechanism, thereby improving the firmness between the male connector 2 and the female connector 1.

[0071] In one embodiment, see Figures 1 to 12 The first liquid hole 11 and the second liquid hole 21 extend in predetermined directions respectively. In this way, the liquid can flow along the first liquid hole 11 and the second liquid hole 21 easily.

[0072] In one embodiment, see Figures 1 to 12 , further comprising: a column 23 coaxially arranged with the rod 22; the column 23 is arranged at one end of the rod 22; the outer diameter of the column 23 is smaller than the outer diameter of the rod 22; the female connector 1 has a columnar chamber 13 connected with the plug hole 12 and adapted to the column 23; the column 23 is inserted in the columnar chamber 13; a sealing ring 24 is sleeved on the column 23; the column 23 and the inner wall of the columnar chamber 13 are sealed by the sealing ring 24; the second liquid hole 21 passes through the column 23 along the axial direction of the column 23 and is connected to the first liquid hole 11. In this way, the rod-shaped rod 22 is very convenient to be inserted into the plug hole 12; the rod 22 is sleeved with a sealing ring 24, and the rod 22 and the inner wall of the plug hole 12 can be sealed by the sealing ring 24.

[0073] In one embodiment, see Figures 1 to 12 A first annular groove 231 surrounding the column 23 is formed on the outer surface of the column 23; the sealing ring 24 is clamped in the first annular groove 231. In this way, the sealing ring 24 is clamped in the first annular groove 231 and is not easy to loosen.

[0074] In one embodiment, see Figures 1 to 12 The limiting mechanism includes: a protrusion 32 arranged on the outer surface of the rod body 22 and a second annular groove 31 provided on the inner wall at the entrance of the insertion hole 12; the second annular groove 31 extends along the circumferential direction of the insertion hole 12; a notch 33 connected to the outside and allowing the protrusion 32 to enter the second annular groove 31 is provided on the side wall of the second annular groove 31; after the protrusion 32 enters the second annular groove 31 through the notch 33, it can be rotated into the locking position in the second annular groove 31 along with the rod body 22; when the protrusion 32 is in the locking position, in a predetermined direction, the protrusion 32 is restricted between the two side walls of the second annular groove 31. In this way, during the process of the rod body 22 being inserted into the insertion hole 12 along the predetermined direction, the protrusion 32 on the rod body 22 can enter the second annular groove 31 through the notch 33; since the extension direction of the second annular groove 31 is perpendicular to the predetermined direction, when the rod body 22 rotates in the insertion hole 12, the protrusion 32 can rotate with the rod body 22 to a locking position in the second annular groove 31; when the protrusion 32 rotates to the locking position, in the predetermined direction, the protrusion 32 is restricted between the two side walls of the second annular groove 31, preventing the protrusion 32 from moving in the predetermined direction; since the protrusion 32 is arranged on the rod body 22, when the second annular groove 31 prevents the protrusion 32 from moving in the predetermined direction, the rod body 22 cannot move in the predetermined direction (i.e., the axial direction of the rod body 22), preventing the rod body 22 from being pulled out of the insertion hole 12 in the predetermined direction, thereby improving the stability of the rod body 22 inserted in the insertion hole 12.

[0075] In one embodiment, see Figures 1 to 12 The rod body 22 has an axis of symmetry. In one embodiment, the axis of symmetry is a straight line, and the axis of symmetry is a predetermined direction.

[0076] In one embodiment, see Figures 1 to 12 , further comprising: an elastic member 34 provided on the female connector 1 and having a snap-in portion 341; a through hole 35 communicating with the second annular groove 31 is provided on the female connector 1; a snap-in groove 321 extending in a predetermined direction is provided on the protruding portion 32; when the protruding portion 32 is rotated to the locking position, the snap-in portion 341 on the elastic member 34 can pass through the through hole 35 and be snap-in in the snap-in groove 321. In this way, a through hole 35 communicating with the second annular groove 31 is provided on the side wall of the plug hole 12; when the protruding portion 32 is rotated to the locking position, the snap-in groove 321 is communicated with the through hole 35; the elastic member 34 is provided on the female connector 1, and the snap-in portion 341 on the elastic member 34 can be snap-in in the snap-in groove 321 through the through hole 35; since the snap-in groove 321 extends in a predetermined direction, when the snap-in portion 341 is snap-in in the snap-in groove 321, the snap-in portion 341 can prevent the rod body 22 from rotating in the plug hole 12.

[0077] In one embodiment, see Figures 1 to 12The elastic member 34 is provided with a mounting hole 342 , and the female connector 1 is inserted and fixed in the mounting hole 342 .

[0078] In one embodiment, see Figures 1 to 12 A pressing plate 343 is provided on the elastic member 34 , and the user can bend the elastic member 34 by pressing the pressing plate 343 .

[0079] In one embodiment, see Figures 1 to 12 The pressing plate 343 is provided with an assembly hole 3431, through which the female connector 1 passes, and the female connector 1 is spaced apart from the inner wall of the assembly hole 3431. When the inner wall of the assembly hole 3431 contacts the female connector 1 during the movement of the pressing plate 343, the female connector 1 can limit the pressing plate 343.

[0080] In one embodiment, see Figures 1 to 12 The elastic member 34 is: the limiting structure material is selected from polymer and metal materials with good elasticity, and is formed by injection molding, bending after laser processing, stamping, sintering, die casting, powder metallurgy, and welding.

[0081] In one embodiment, see Figures 13 to 17The limiting mechanism includes: a sliding member 41, a first spring 42 connecting the sliding member 41 and the female connector 1', and a first sliding groove 43 opened on the female connector 1'; the sliding member 41 is slidably arranged in the first sliding groove 43; the middle section of the first sliding groove 43 has a first opening 431 connected to the insertion hole 12; the rod body 22' has a first positioning groove 44 connected to the first opening 431; the first sliding groove 43 and the first positioning groove 44 extend along a straight line direction perpendicular to the predetermined direction respectively, and the extension direction of the first sliding groove 43 is arranged parallel to the extension direction of the first positioning groove 44; the user can push the sliding member 41 to move from the first initial position to the first unlocking position; when the sliding member 41 is located at the first initial position, the sliding member 41 is inserted in the first positioning groove 44; when the sliding member 41 moves to the first unlocking position, the sliding member 41 slides out of the first positioning groove 44. In this way, the sliding member 41 is connected to the female connector 1' through the first spring 42, the sliding member 41 is slidably arranged in the first sliding groove 43 on the female connector 1', and the sliding member 41 can slide between the first initial position and the first unlocking position; the middle section of the first sliding groove 43 is connected with the first positioning groove 44 on the rod body 22' in the socket 12; when the sliding member 41 is in the first initial position, the sliding member 41 is inserted in the first positioning groove 44, and since the extension direction of the first sliding groove 43 is perpendicular to the predetermined direction, the sliding member 41 can prevent the rod body 22' from being pulled out of the socket 12; when the user pushes the sliding member 41 to move to the first unlocking position, the sliding member 41 slides out of the first positioning groove 44, and the rod body 22' can slide freely in the socket 12, so that the sliding member 41 releases the restriction on the rod body 22'; after the user releases the sliding member 41, the first spring 42 pushes the sliding member 41 to the first initial position.

[0082] In one embodiment, see Figures 13 to 17 One end of the first spring 42 is connected to the female connector 1 ′, and the other end of the first spring 42 is connected to a pressing plate 45 . In one embodiment, the sliding member 41 is disposed on the pressing plate 45 .

[0083] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A detachable fluid connector, characterized in that: include: A female connector, a male connector, and a limiting mechanism arranged on the female connector and / or the male connector; The female connector has a socket extending in a predetermined direction, and the female connector has a first liquid hole communicating with the socket; The male connector has a rod body that is adapted to the socket and can be inserted into the socket along the predetermined direction, and the male connector has a second liquid hole; the rod body is inserted into the socket, the first liquid hole and the second liquid hole are connected, and the limiting mechanism can limit the axial movement of the rod body and / or limit the circumferential rotation of the rod body.

2. The detachable fluid connector according to claim 1, characterized in that: The limiting mechanism comprises: a clamping groove arranged on the male connector and a movable protrusion arranged on the female connector; the protrusion is inserted into the clamping groove.

3. The detachable fluid connector according to claim 2, characterized in that: The limiting mechanism also includes: a raised portion arranged on the outer surface of the rod body, a second annular groove arranged on the inner wall of the socket, a guide groove connected to the second annular groove and extending to the end face of the female connector, and an elastic member located on one side of the female connector and extending into the second annular groove; the clamping groove is opened on the raised portion, and the convex portion is arranged on the elastic member.

4. The detachable fluid connector according to claim 3, characterized in that: The card slot can be in any shape of square, semicircular or diamond.

5. The detachable fluid connector according to claim 3, characterized in that: The protrusion enters the second annular groove through the guide groove, and the protrusion can be rotated into a fixed position in the second annular groove along with the rod body; when the protrusion is located at the fixed position, the elastic member enters the clamping groove of the protrusion to limit the rotation of the protrusion.

6. The detachable fluid connector according to claim 5, characterized in that: There is a columnar chamber in the socket, and a column is arranged on the rod body; the column is inserted in the columnar chamber; a sealing ring is sleeved on the column; the column and the inner wall of the columnar chamber are sealed by the sealing ring; the second liquid hole penetrates the column along the axial direction of the column and is connected with the first liquid hole.

7. The detachable fluid connector according to claim 1, wherein: The limiting mechanism includes: a sliding member, a first spring fixed to the female joint, and a first sliding groove is arranged on the female joint; the sliding member is slidably arranged in the first sliding groove; the middle section of the first sliding groove has a first opening connected to the plug hole, and the first opening has a clearance groove, and the diameter of the clearance groove matches the diameter of the rod body; the rod body has a first positioning groove matching the first opening.

8. The detachable fluid connector according to claim 7, wherein: The number of the sliding members, the number of the first sliding grooves, the number of the first openings, and the number of the first positioning grooves are respectively two; the two sliding members, the two first sliding grooves, the two first openings, and the two first positioning grooves correspond one to one.

9. The detachable fluid connector according to claim 1, wherein: The female connector has a cylindrical surface surrounding the outside of the plug hole and having an axial direction in the predetermined direction; The limiting mechanism includes: a first ring body sleeved on the outer side of the cylindrical surface and slidable relative to the cylindrical surface, a second spring sleeved on the outer side of the cylindrical surface, a second ring body sleeved on the outer side of the cylindrical surface and slidable relative to the cylindrical surface, a first limiting piece arranged on the outer surface of the cylindrical surface, a second limiting piece arranged on the outer surface of the cylindrical surface, and a positioning rod; a second sliding groove is provided on the cylindrical surface, a middle section of the second sliding groove has a second opening connected to the insertion hole, a second positioning groove connected to the second opening is provided on the outer surface of the rod body, the positioning rod is slidably provided in the second sliding groove, and the middle section of the positioning rod can extend into the second opening and be stuck in the second positioning groove; both ends of the positioning rod are located on the outer side of the second sliding groove; In the axial direction of the cylindrical surface, the first stopper, the first ring body, the two ends of the positioning rod, the second ring body, the second spring, and the second stopper are arranged in sequence; the first ring body abuts against the first stopper; The two side walls of the second chute are arranged parallel to each other; in the predetermined direction, the two side walls of the second chute gradually move away from the axis of the cylindrical surface; The first ring body can move along the cylindrical surface between a second initial position and a second unlocking position; in the predetermined direction, the second unlocking position is located downstream of the second initial position; when the first ring body is located at the second initial position, the positioning rod is clamped in the second positioning groove; when the first ring body moves to the second unlocking position, the first ring body pushes the positioning rod to make the positioning rod slide out of the second positioning groove to the outside of the socket.

10. The detachable fluid connector according to claim 9, wherein: Also includes: A sleeve is sleeved on the outer side of the cylindrical surface; the first ring body is arranged on the inner wall of the sleeve.

Images