Miniature double-seal quick connector

Abstract

The miniature double-seal quick connector comprises a female connector, one end of the female connector is connected with a male connector in an inserted mode, the outer side of one end of the female connector is movably connected with a sliding sleeve in a sleeved mode, the male connector is provided with a limiting ring, and the outer diameter of the limiting ring is larger than that of the sliding sleeve; a first connecting groove is formed in one end of the female connector, a second connecting groove is formed in the female connector in a concave mode, a first threaded connection groove is formed in one end of the second connecting groove in a concave mode, a movable channel is connected between the second connecting groove and the first connecting groove, and a first movable sealing piece is movably connected into the second connecting groove. One end of the first sealing piece penetrates through the movable channel to reach the first connecting groove. Two groups of independent sealing structures are adopted, a sealing piece I and a sealing piece II of an axial O-shaped ring are sealed with the interiors of the female joint and the male joint, and a sliding sleeve is matched with the male joint to form another sealing, so that a redundant sealing mechanism is formed, and manual quick insertion and extraction are supported.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of double-seal joints, in particular to a micro double-seal quick joint. BACKGROUND

[0002] The existing double-seal structure relies on rubber or silicone seal rings, and is simple in structure and low in cost. The micro structure has higher requirements for material strength. The aluminum alloy material is easy to wear and has weak compression resistance. The stainless steel material is corrosion-resistant but significantly increases the cost. In a high-pressure scene (> 10 MPa), the micro joint is prone to local deformation or rupture due to stress concentration. However, after long-term use, the structure volume is reduced due to corrosion or mechanical wear caused by medium infiltration, which further leads to loosening. The sealing is realized by relying on external force extrusion. With the passage of time or environmental vibration, the pressure gradually decays, which may cause micro leakage, thereby leading to sealing failure. Therefore, the micro double-seal quick joint is proposed. SUMMARY

[0003] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title. Such simplifications or omissions cannot be used to limit the scope of the present application.

[0004] In view of the following technical problems in the prior art: the existing double-seal structure relies on rubber or silicone seal rings. After long-term use, the structure volume is reduced due to corrosion or mechanical wear caused by medium infiltration, which further leads to loosening. The sealing is realized by relying on external force extrusion. With the passage of time or environmental vibration, the pressure gradually decays, which may cause micro leakage, thereby leading to sealing failure.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a micro double-seal quick joint, comprising a female joint, one end of the female joint is inserted with a male joint, the outer side of one end of the female joint is movably sleeved with a sliding sleeve, a limiting ring is arranged on the male joint, the outer diameter of the limiting ring is greater than the outer diameter of the sliding sleeve, and the sliding sleeve is movably connected with the limiting ring of the male joint;

[0006] One end of the female joint is provided with a connecting groove one, the inside of the female joint is recessed with a connecting groove two, one end of the connecting groove two is recessed with a silk connecting groove one, an active channel is connected between the connecting groove two and the connecting groove one, an active sealing element one is movably connected in the connecting groove two, and one end of the sealing element one passes through the active channel and reaches the connecting groove one;

[0007] One end of the male connector is recessed with a wire connecting groove two, one side of the wire connecting groove two is recessed with a connecting groove three, the other end of the male connector is recessed with a long groove, the long groove is connected with the connecting groove three, the connecting groove three is recessed with the long groove, the connecting groove three movably inserts a sealing element two, one end of the sealing element two extends into the long groove, the sealing element one and the sealing element two movably abut, and the sealing element one and the female connector and the sealing element two and the male connector are all connected with elastic structures.

[0008] As the preferred technical scheme of the micro double-sealing quick connector, the sealing element one and the sealing element two are the same structure, which comprises an extrusion column, an axial O-shaped ring, a movable block and a center column;

[0009] One side of the movable block is provided with the extrusion column, the other side of the movable block is provided with the center column, the extrusion column on the sealing element one movably inserts the active channel, and the extrusion column on the sealing element two movably inserts the long groove;

[0010] The extrusion column on the sealing element one and the extrusion column on the sealing element two movably abut.

[0011] As the preferred technical scheme of the micro double-sealing quick connector, the shape of the inner cavity of the connecting groove one matches the shape of the part of the male connector inserted into the connecting groove one;

[0012] So that after the male connector is inserted into the connecting groove one, the anastomosis can be realized.

[0013] As the preferred technical scheme of the micro double-sealing quick connector, one side of the inner circumferential wall of the connecting groove one is recessed with an annular groove three, the annular groove three clamps a sealing ring two, and the sealing ring two movably connects with the outside of the male connector;

[0014] The other side of the inner circumferential wall of the connecting groove one is recessed with an annular groove four, the annular groove four clamps a sealing ring one, and the sealing ring one movably connects with the annular groove;

[0015] The sealing ring two and the sealing ring one contact with the male connector, so that the gap between the female connector and the male connector is closed.

[0016] As the preferred technical scheme of the micro double-sealing quick connector, the elastic structure comprises a spring one and an internal screw, the internal screw is threadedly connected in the wire connecting groove one and the connecting groove three, the center column sleeves the spring one, and the spring one is connected with the corresponding internal screw;

[0017] The spring one extrudes the extrusion column and the movable block on the sealing element two, when the two extrusion columns do not contact each other, the movable block with the axial O-shaped ring tightly abuts against the inner wall of the connecting groove two or the movable block with the axial O-shaped ring tightly abuts against the inner wall of the connecting groove three, so that the inner cavities of the female connector and the male connector are closed, when the two extrusion columns abut against each other, the two axial O-shaped rings are away from the wall surfaces contacted respectively, so that the inner cavities of the female connector and the male connector are opened.

[0018] As the preferred technical solution of the micro double-seal quick connector, the outer side of the female connector provided with the first wire connection groove and the outer side of the male connector provided with the second wire connection groove are sleeved with the outer sleeve;

[0019] The outer sleeve can maintain the stability of the second wire connection groove and prevent the size of the second wire connection groove from being increased due to the internal force of the second wire connection groove.

[0020] The micro double-seal quick connector has the following advantages: two independent sealing structures are adopted, the axial O-shaped ring sealing element one and the sealing element two are sealed with the interior of the female connector and the male connector, and another sealing is formed by the cooperation of the sliding sleeve and the male connector, thereby forming a redundant sealing mechanism and supporting manual quick plugging.

[0021] After the male connector and the female connector are plugged, the sealing ring one fills the inner side of the annular groove, seals the inner side of the annular groove, is automatically locked during plugging, and is unlocked by pressing the release ring during withdrawal.

[0022] The spring two can always provide elastic extrusion for the sliding sleeve, and since the spring two is not in contact with the liquid in the interior of the female connector and the male connector, the spring two will not face corrosion problems; the elastic deformation of the spring one can overcome the deviation between structures caused by environmental vibration, the spring one can quickly extrude the annular groove to continue contact with the sealing ring one, compensate for the decrease in the structure volume of the sealing ring one caused by corrosion or mechanical wear due to immersion, and avoid micro leakage, so that the device is suitable for use in high-temperature or strong-corrosion environments, the sealing material is easy to age, and frequent maintenance is required. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor. Among them:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0025] The drawings are as follows: 1, female connector; 2, male connector; 3, connection groove one; 4, connection groove two; 5, first wire connection groove; 6, outer sleeve; 7, inner screw; 8, outer sealing sleeve; 9, structure ring; 10, sealing ring one; 11, sealing ring three; 12, sliding sleeve; 13, spring two; 14, sealing ring four; 15, extrusion column; 16, axial O-shaped ring; 17, movable block; 18, center column; 19, long groove; 20, annular groove; 21, connection groove three; 22, spring one; 23, second wire connection groove; 24, sealing ring two. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0030] like Figure 1 As shown, the present invention proposes a miniature double-sealed quick connector, including a female connector 1, one end of which is inserted into a male connector 2, and a sliding sleeve 12 is movably sleeved on the outer side of one end of the female connector 1. A limiting ring is provided on the male connector 2, the outer diameter of which is larger than the outer diameter of the sliding sleeve 12, and the sliding sleeve 12 is movably connected to the limiting ring of the male connector 2.

[0031] One end of the female connector 1 is provided with a connecting groove 3, and the inside of the female connector 1 is recessed with a connecting groove 4. One end of the connecting groove 4 is recessed with a threaded groove 5. A movable channel is connected between the connecting groove 4 and the connecting groove 3. A movable seal is movably connected in the connecting groove 4. One end of the seal passes through the movable channel and reaches the connecting groove 3.

[0032] The limiting ring restricts the relative positions of female connector 1 and male connector 2.

[0033] One end of the male connector 2 is recessed with a wire connecting groove two 23, one side of the wire connecting groove two 23 is recessed with a connecting groove three 21, the other end of the male connector 2 is recessed with a long groove 19, the long groove 19 is connected with the connecting groove three 21, the connecting groove three 21 is recessed with the long groove 19, the connecting groove three 21 movably inserts a sealing piece two, one end of the sealing piece two extends into the long groove 19, the sealing piece one and the sealing piece two movably abut, and the sealing piece one and the sealing piece two are connected with elastic structures.

[0034] The sealing piece one and the sealing piece two are the same structure, and the structure comprises a pressing column 15, an axial O-shaped ring 16, a movable block 17 and a center column 18.

[0035] One side of the movable block 17 is provided with the pressing column 15, the other side of the movable block 17 is provided with the center column 18, the pressing column 15 on the sealing piece one movably inserts the active channel, and the pressing column 15 on the sealing piece two movably inserts the long groove 19.

[0036] The pressing column 15 on the sealing piece one and the pressing column 15 on the sealing piece two movably abut.

[0037] The shape of the inner cavity of the connecting groove one 3 matches the shape of the part of the male connector 2 which is inserted into the connecting groove one 3.

[0038] Therefore, after the male connector 2 is inserted into the connecting groove one 3, the anastomosis can be realized.

[0039] One side of the inner circumferential wall of the connecting groove one 3 is recessed with an annular groove three, the annular groove three clamps the sealing ring two 24, and the sealing ring two 24 movably connects with the outside of the male connector 2.

[0040] The other side of the inner circumferential wall of the connecting groove one 3 is recessed with an annular groove four, the annular groove four clamps the sealing ring one 10, and the sealing ring one 10 movably connects with the annular groove 20.

[0041] The sealing ring two 24 and the sealing ring one 10 contact the male connector 2, so that the gap between the female connector 1 and the male connector 2 is closed.

[0042] The elastic structure comprises a spring one 22 and an internal screw 7, the internal screw 7 is threadedly connected in the wire connecting groove one 5 and the connecting groove three 21, the center column 18 sleeves the spring one 22, and the spring one 22 is connected with the corresponding internal screw 7.

[0043] The spring 22 presses the pressing posts 15 and the movable block 17 on the sealing member two, when the two pressing posts 15 are not in contact with each other, the movable block 17 with the axial O-shaped ring 16 is tightly attached to the inner wall of the connecting groove two 4 or the movable block 17 with the axial O-shaped ring 16 is tightly attached to the inner wall of the connecting groove three 21, so that the inner cavities of the female connector 1 and the male connector 2 are both closed, when the two pressing posts 15 are in contact with each other, the two axial O-shaped rings 16 are both away from the wall surface in contact with each other, so that the inner cavities of the female connector 1 and the male connector 2 are both opened.

[0044] The outer side of the female connector 1 provided with the wire connection groove one 5 and the outer side of the male connector 2 provided with the wire connection groove two 23 are both sleeved with the outer sleeve 6.

[0045] The outer sleeve 6 can maintain the structural stability of the wire connection groove two 23 and prevent the size of the wire connection groove two 23 from being increased due to the internal force of the wire connection groove two 23.

[0046] The female connector 1 and the male connector 2 are not inserted before the sealing member one is pressed by the spring 22 to close the connecting groove two 4 and the sealing member two is pressed to close the connecting groove three 21, so that the female connector 1 and the male connector 2 can both seal the liquid and prevent the liquid from flowing before the female connector 1 and the male connector 2 are assembled.

[0047] After the male connector 2 is inserted into the connecting groove one 3 of the female connector 1, the sealing ring two 24 and the sealing ring one 10 are attached to the outer side of the male connector 2, the sealing ring two 24 is in contact with the outer side of the male connector 2 to seal, and the sealing ring one 10 fills the inner side of the annular groove 20 to seal and lock.

[0048] Sealing mode one: after the insertion, the pressing posts 15 in the female connector 1 and the pressing posts 15 in the male connector 2 are in contact, so that the sealing member one and the sealing member two are respectively separated from the sealing of the inner cavities of the female connector 1 and the male connector 2, the axial O-shaped ring 16 in the female connector 1 is separated from the connecting groove two 4, and the axial O-shaped ring 16 in the male connector 2 is separated from the connecting groove three 21, so that the connecting groove two 4 and the connecting groove three 21 can be connected.

[0049] Sealing mode two: after the female connector 1 and the male connector 2 are inserted, the sliding sleeve 12 is sleeved on the outer side of the male connector 2 to seal.

[0050] It should be understood that, during the development of any actual implementation, numerous implementation-specific decisions can be made. Such development efforts, while possibly complex and time-consuming, would nevertheless be routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0051] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A micro dual-seal quick connector characterized by: The utility model provides a connector, including female joint (1), one end of female joint (1) is inserted with male joint (2), the outside of one end of female joint (1) is movably sleeved with sliding sleeve (12), the male joint (2) is provided with the limiting ring, the limiting ring's outer diameter is greater than the outer diameter of sliding sleeve (12), One end of female joint (1) is provided with connecting groove no. 1 (3), the inside of female joint (1) is recessed with connecting groove no. 2 (4), one end of connecting groove no. 2 (4) is recessed with silk joint groove no. 1 (5), connecting groove no. 2 (4) and connecting groove no. 1 (3) are connected with movable channel, movable sealing part no. 1 is movably connected in connecting groove no. 2 (4), one end of sealing part no. 1 passes through movable channel and reaches in connecting groove no. 1 (3), One end of male joint (2) is recessed with silk joint groove no. 2 (23), one side of silk joint groove no. 2 (23) is recessed with connecting groove no. 3 (21), the other end of male joint (2) is recessed with long groove (19), long groove (19) is communicated with connecting groove no. 3 (21), connecting groove no. 3 (21) is recessed with long groove (19), connecting groove no. 3 (21) movably inserts sealing part no. 2, one end of sealing part no. 2 extends into long groove (19), and the connecting between sealing part no. 1 and female joint (1) and sealing part no. 2 and male joint (2) is all connected with elastic structure.

2. The micro dual-seal quick connector of claim 1, wherein: The sealing part no. 1 and sealing part no. 2 are same in structure, and the structure includes extrusion column (15), axial O-shaped ring (16), movable block (17) and central column (18); One side of movable block (17) is provided with extrusion column (15), the other side of movable block (17) is provided with central column (18), the extrusion column (15) on sealing part no. 1 is movably inserted with movable channel, and the extrusion column (15) on sealing part no. 2 is movably inserted with long groove (19).

3. The micro dual-seal quick connector of claim 1, wherein: The shape of the inner cavity of connecting groove no. 1 (3) is matched with the shape of the insertion part of male joint (2) on connecting groove no. 1 (3).

4. The micro dual-seal quick connector of claim 3, wherein: One side of the inner circumferential wall of connecting groove no. 1 (3) is recessed with annular groove no. 3, sealing ring no. 2 (24) is clamped in annular groove no. 3, and sealing ring no. 2 (24) is movably connected with the outside of male joint (2).

5. The micro dual-seal quick connector of claim 1, wherein: The other side of the inner circumferential wall of connecting groove no. 1 (3) is recessed with annular groove no. 4, sealing ring no. 1 (10) is clamped in annular groove no. 4, and sealing ring no. 1 (10) is movably connected with annular groove (20).

6. The micro dual-seal quick connector of claim 2, wherein: The elastic structure includes spring no. 1 (22) and inner screw ring (7), the inner screw ring (7) is threadedly connected in silk joint groove no. 1 (5) and connecting groove no. 3 (21), the sleeve of central column (18) is followed by spring no. 1 (22), and spring no. 1 (22) is connected with the corresponding inner screw ring (7).

7. The micro dual-seal quick connector of claim 1, wherein: The outside of the part of female joint (1) provided with silk joint groove no. 1 (5) and the outside of the part of male joint (2) provided with silk joint groove no. 2 (23) are both sleeved with outer sleeve (6).

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