Quick plug connector with self-locking function

Abstract

The invention provides a quick plug connector with a self-locking function, and relates to the technical field of pipeline connectors. The quick connector with the self-locking function comprises an upper connector, a lower connector and a self-locking insertion piece. The upper joint is clamped with the lower joint, and a sealing piece for sealing an opponent piece is arranged at one end, connected with the upper joint, of the lower joint; the self-locking insertion piece comprises a first insertion piece and a second insertion piece, the upper connector is provided with an anti-disengaging clamping groove and a locking clamping groove, the first insertion piece is provided with an anti-disengaging clamping jaw matched with the anti-disengaging clamping groove, and the second insertion piece is provided with a locking clamping jaw matched with the locking clamping groove; the upper connector is provided with an anti-falling slide way, and the anti-falling clamping groove is located at one end of the anti-falling slide way. The second insertion piece is provided with a thrust piece so that the opposite piece can drive the anti-disengaging clamping jaw to slide in the anti-disengaging sliding way, and the first insertion piece can abut against the opposite piece. The technical effect of convenient installation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe joints, in particular to a quick-plug joint with a self-locking function. Background Art

[0002] As the functional requirements of new energy thermal management systems increase, more components need to be arranged in a limited space. Under the premise of meeting the same functions, the plastic quick-connect connectors used are more compact in size. Most of the quick-connect connectors currently used on the market are one-piece with fixed insert directions. When mating with the counterpart, the insert needs to be manually pushed in to lock it.

[0003] Most of these quick-connect connectors on the market are made of PA66+GF30 material and EPDM sealing rings, and some products use a single sealing ring design, which may easily leak if there is lateral force loading under long-term use.

[0004] During the installation of quick-connect connectors, the existing technology requires manually pushing in the insert to lock it. Workers may miss something during the installation, and improper installation may lead to the risk of leakage. Summary of the invention

[0005] The purpose of the present invention is to provide a quick-insert connector with a self-locking function to alleviate the technical problem of inconvenient installation in the prior art.

[0006] In a first aspect, an embodiment of the present invention provides a quick-connect connector with a self-locking function, comprising an upper connector, a lower connector and a self-locking insert;

[0007] The upper joint is clamped with the lower joint, and one end of the lower joint connected with the upper joint is provided with a sealing member for sealing against the counterpart;

[0008] The self-locking plug includes a first plug and a second plug, the upper joint is provided with an anti-dropout slot and a locking slot, the first plug is provided with an anti-dropout claw matched with the anti-dropout slot, and the second plug is provided with a locking claw matched with the locking slot;

[0009] The anti-slip slide is provided on the upper joint, and the anti-slip slot is located at one end of the anti-slip slide;

[0010] The second plug piece is provided with a thrust piece so that the counterpart piece can drive the anti-slip claw to slide in the anti-slip slideway so that the first plug piece abuts against the counterpart piece.

[0011] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein an anti-pullout ring is provided on the first plug piece, and an anti-pullout ring groove adapted to the anti-pullout ring is provided on the pair of pieces.

[0012] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a pagoda connecting section is provided at one end of the lower joint away from the upper joint.

[0013] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a sealing groove is provided on the pagoda connecting section, and a sealing ring is provided in the sealing groove.

[0014] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the outer wall of one end of the lower joint connected to the upper joint is provided with a plurality of undercuts, and the upper joint is provided with a plurality of undercut grooves adapted to the undercuts.

[0015] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the outer wall of one end where the lower joint is connected to the upper joint is provided with a plurality of interference ribs, and the interference ribs can abut against the inner wall of the upper joint.

[0016] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the outer wall of one end of the lower joint connected to the upper joint is provided with a plurality of positioning protrusions, and the upper joint is provided with a plurality of positioning slots adapted to the positioning protrusions.

[0017] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the plurality of positioning protrusions are evenly and equidistantly arranged on the outer wall of the lower joint.

[0018] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the sealing member includes a plurality of sealing rings, and an isolation ring is provided between two adjacent sealing rings.

[0019] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein an installation groove for installing the seal is opened inside the above-mentioned lower joint, and a pressure ring for pressing the seal is provided on the upper joint.

[0020] Beneficial effects:

[0021] The present invention provides a quick-insertion connector with a self-locking function, comprising an upper connector, a lower connector and a self-locking insert; the upper connector is clamped with the lower connector, and a sealing member for sealing an opposing member is arranged at one end of the lower connector connected with the upper connector; the self-locking insert comprises a first insert and a second insert, the upper connector is provided with an anti-dropout slot and a locking slot, the first insert is provided with an anti-dropout claw matched with the anti-dropout slot, and the second insert is provided with a locking claw matched with the locking slot; an anti-dropout slide is provided on the upper connector, and the anti-dropout slot is located at one end of the anti-dropout slide; a thrust piece is provided on the second insert, so that the opposing member can drive the anti-dropout claw to slide in the anti-dropout slide, so that the first insert is in contact with the opposing member.

[0022] Specifically, before use, the staff loads the sealing member into the lower joint, then connects the upper joint and the lower joint together, and then inserts the self-locking plug into the upper joint, so that the anti-dropping groove on the first plug can be engaged with the anti-dropping groove on the upper joint, so that the self-locking plug will not fall off the upper joint at will, and then the staff inserts the hand piece into the upper joint. During the insertion of the hand piece, the hand piece can abut against the thrust piece on the second plug piece, so that the hand piece drives the thrust piece to move horizontally, thereby driving the second plug piece to move, and the locking claw on the second plug piece is engaged with the locking groove on the upper joint. During this process, the anti-dropping claw of the first plug piece slides in the anti-dropping slide, and then the first plug piece abuts against the hand piece, thereby forming a lock. Through such a setting, it can be automatically locked during the insertion of the hand piece, which is convenient for the staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a quick-connect connector with a self-locking function provided by an embodiment of the present invention;

[0025] Figure 2 A cross-sectional view of a quick-connect connector with a self-locking function provided by an embodiment of the present invention;

[0026] Figure 3 An exploded schematic diagram of a quick-connect connector with a self-locking function provided by an embodiment of the present invention;

[0027] Figure 4 The initial state of the self-locking insert on the upper connector of the quick-connect connector with a self-locking function provided by an embodiment of the present invention;

[0028] Figure 5 A side view of the upper connector and the self-locking insert of the quick-connect connector with a self-locking function provided by an embodiment of the present invention in an initial state;

[0029] Figure 6 for Figure 5 Sectional view of A-A;

[0030] Figure 7 for Figure 5 Sectional view of B-B;

[0031] Figure 8 A schematic diagram of an upper connector of a quick-connect connector with a self-locking function provided in an embodiment of the present invention;

[0032] Fig. 9 A schematic diagram of a self-locking insert in a quick-connect connector with a self-locking function provided in an embodiment of the present invention.

[0033] icon:

[0034] 100 - upper connector; 110 - anti-drop slot; 120 - locking slot; 130 - anti-drop slide; 140 - undercut slot; 150 - positioning slot; 160 - pressure ring;

[0035] 200 - lower joint; 210 - seal; 211 - isolation ring; 220 - pagoda connection section; 221 - sealing groove; 230 - undercut; 240 - interference rib; 250 - positioning protrusion; 260 - installation groove;

[0036] 300 - self-locking insert; 310 - first insert; 311 - anti-drop claw; 312 - anti-pullout ring; 320 - second insert; 321 - locking claw; 322 - thrust piece;

[0037] 400 - Opposite piece; 410 - Anti-extraction ring groove;

[0038] 500 - Sealing ring. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] 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 invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0044] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, this embodiment provides a quick-connect connector with a self-locking function, including an upper connector 100, a lower connector 200 and a self-locking insert 300; the upper connector 100 is clamped with the lower connector 200, and one end of the lower connector 200 connected to the upper connector 100 is provided with a sealing member 210 for sealing against a counterpart 400; the self-locking insert 300 includes a first insert 310 and a second insert 320, and the upper connector 100 is provided with an anti-dropping slot 110 and a locking slot 120, and the first insert 310 and the second insert 320 are provided with a locking slot 120. 10 is provided with an anti-slip claw 311 adapted to the anti-slip slot 110, and the second plug piece 320 is provided with a locking claw 321 adapted to the locking slot 120; an anti-slip slide 130 is opened on the upper joint 100, and the anti-slip slot 110 is located at one end of the anti-slip slide 130; the second plug piece 320 is provided with a thrust piece 322, so that the opponent part 400 can drive the anti-slip claw 311 to slide in the anti-slip slide 130, so that the first plug piece 310 abuts against the opponent part 400.

[0045] Specifically, before use, the staff loads the sealing member 210 into the lower joint 200, then connects the upper joint 100 and the lower joint 200 together, and then inserts the self-locking plug 300 into the upper joint 100, so that the anti-dropping groove 110 on the first plug 310 can be snapped into the anti-dropping groove 110 on the upper joint 100, so that the self-locking plug 300 will not fall off from the upper joint 100 at will, and then the staff inserts the hand piece 400 into the upper joint 100. During the insertion of the hand piece 400, the hand piece 400 can be snapped into the anti-dropping groove 110 on the upper joint 100. The thrust piece 322 on the second plug piece 320 abuts against the opponent 400, thereby driving the thrust piece 322 to move horizontally, thereby driving the second plug piece 320 to move, and the locking claw 321 on the second plug piece 320 is engaged with the locking groove 120 on the upper joint 100. During this process, the anti-slip claw 311 of the first plug piece 310 slides in the anti-slip slide 130, and then the first plug piece 310 abuts against the opponent 400, thereby forming a lock. Through such a setting, the opponent 400 can be automatically locked during the insertion process, which is convenient for the staff to operate.

[0046] A sealing member 210 is provided between the hand piece 400 and the lower joint 200 , and the sealing member 210 can form a seal between the hand piece 400 and the lower joint 200 .

[0047] The first insert 310 is provided with an anti-extraction ring 312, and the hand piece 400 is provided with an anti-extraction ring groove 410 adapted to the anti-extraction ring 312. The anti-extraction ring 312 and the anti-extraction ring groove 410 can prevent the hand piece 400 from falling off.

[0048] It should be pointed out that the thrust piece 322 has an arc-shaped thrust surface, so that when the hand piece 400 is inserted, the chamfer at the front end of the hand piece 400 can abut against the arc-shaped thrust surface of the thrust piece 322, so that the thrust piece 322 has a tendency to move horizontally, thereby driving the second plug 320 to move horizontally through the thrust piece 322, and then the entire self-locking plug 300 moves horizontally.

[0049] It should be noted that the side wall of the upper connector 100 is provided with an inserting slot for the self-locking insert piece 300 to be inserted into.

[0050] See also Figure 1 - Fig. 9 As shown, in an optional solution of this embodiment, a pagoda connecting section 220 is provided at one end of the lower joint 200 away from the upper joint 100 .

[0051] A sealing groove 221 is provided on the pagoda connecting section 220 , and a sealing ring 500 is arranged in the sealing groove 221 .

[0052] Specifically, a sealing groove 221 is provided on the pagoda connection section 220 of the lower joint 200, and a sealing ring 500 is arranged in the sealing groove 221. After the pagoda connection section 220 is plugged into the plastic pipeline, it is ensured that no leakage occurs at the connection.

[0053] See also Figure 1 - Fig. 9 As shown, in an optional solution of this embodiment, the outer wall of one end of the lower joint 200 connected to the upper joint 100 is provided with a plurality of undercuts 230 , and the upper joint 100 is provided with a plurality of undercut grooves 140 adapted to the undercuts 230 .

[0054] Specifically, the upper joint 100 and the lower joint 200 can be conveniently connected by providing the undercuts 230 and the undercut grooves 140 , and a plurality of undercuts 230 and undercut grooves 140 are evenly distributed along the circumference of the lower joint 200 .

[0055] The outer wall of one end of the lower joint 200 connected to the upper joint 100 is provided with a plurality of positioning protrusions 250 , and the upper joint 100 is provided with a plurality of positioning slots 150 adapted to the positioning protrusions 250 .

[0056] Among them, a plurality of positioning protrusions 250 are evenly arranged at equal intervals on the outer wall of the lower joint 200 .

[0057] Specifically, the multiple positioning protrusions 250 are arranged in the same orientation as the multiple undercuts 230, so that the user can adjust the orientation of the upper joint 100 according to the needs, so that the upper joint 100 can adjust the orientation according to the needs, for example, when the number of positioning protrusions 250 is 4, the upper joint 100 can achieve the orientation of 0 degrees, 90 degrees, 180 degrees and 360 degrees, or, when the number of positioning protrusions 250 is 6, the upper joint 100 can achieve the orientation of 60 degrees, 120 degrees, 180 degrees, 240 degrees, 300 degrees and 360 degrees. Those skilled in the art can set the number of positioning protrusions 250 according to the needs.

[0058] In addition, the number of the positioning protrusions 250 is an integral multiple of the number of the undercuts 230 .

[0059] See also Figure 1 - Fig. 9 As shown, in an optional solution of this embodiment, the outer wall of one end of the lower joint 200 connected to the upper joint 100 is provided with a plurality of interference ribs 240 , and the interference ribs 240 can abut against the inner wall of the upper joint 100 .

[0060] Specifically, a plurality of interference ribs 240 are arranged on the outer wall of the lower joint 200. Through the arrangement of the plurality of interference ribs 240, when the upper joint 100 is connected to the lower joint 200, the plurality of interference ribs 240 can abut between the lower joint 200 and the upper joint 100, thereby improving the connection stability between the lower joint 200 and the upper joint 100.

[0061] See also Figure 1 - Fig. 9 As shown, in an optional solution of this embodiment, the sealing member 210 includes a plurality of sealing rings 500 , and an isolation ring 211 is provided between two adjacent sealing rings 500 .

[0062] The lower joint 200 has an installation groove 260 for installing the sealing member 210 , and the upper joint 100 has a pressure ring 160 for pressing the sealing member 210 .

[0063] Specifically, when the upper joint 100 is connected to the lower joint 200 , the pressure ring 160 at the bottom of the upper joint 100 can be pressed on the sealing ring 500 , and the multiple sealing rings 500 are squeezed against each other, thereby ensuring the seal between the hand piece 400 and the lower joint 200 .

[0064] In addition, an isolation ring 211 is provided between two adjacent sealing rings 500 to ensure that the deformation of the plurality of sealing rings 500 is consistent after the upper joint 100 is connected to the lower joint 200, thereby ensuring good sealing after the hand piece 400 is inserted.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-connect connector with a self-locking function, characterized in that: include: An upper joint (100), a lower joint (200) and a self-locking insert (300); The upper joint (100) is snap-connected with the lower joint (200), and a sealing member (210) for sealing against a counterpart (400) is provided at one end of the lower joint (200) connected to the upper joint (100); The self-locking plug (300) comprises a first plug (310) and a second plug (320); the upper connector (100) is provided with an anti-dropout slot (110) and a locking slot (120); the first plug (310) is provided with an anti-dropout claw (311) adapted to the anti-dropout slot (110); and the second plug (320) is provided with a locking claw (321) adapted to the locking slot (120); The upper joint (100) is provided with an anti-slip slideway (130), and the anti-slip slot (110) is located at one end of the anti-slip slideway (130); The second inserting piece (320) is provided with a thrust piece (322) so that the counterpart piece (400) can drive the anti-slip claw (311) to slide in the anti-slip slideway (130) so that the first inserting piece (310) abuts against the counterpart piece (400).

2. The quick-connect connector with self-locking function according to claim 1, characterized in that: An anti-pullout retaining ring (312) is provided on the first inserting piece (310), and an anti-pullout ring groove (410) adapted to the anti-pullout retaining ring (312) is provided on the opposing piece (400).

3. The quick-connect connector with self-locking function according to claim 1, characterized in that: A pagoda connection section (220) is provided at one end of the lower joint (200) away from the upper joint (100).

4. The quick-connect connector with self-locking function according to claim 3, characterized in that: The pagoda connecting section (220) is provided with a sealing groove (221), and a sealing ring (500) is arranged in the sealing groove (221).

5. The quick-connect connector with self-locking function according to claim 1, characterized in that: The outer wall of one end of the lower joint (200) connected to the upper joint (100) is provided with a plurality of undercuts (230), and the upper joint (100) is provided with a plurality of undercut grooves (140) adapted to the undercuts (230).

6. The quick-connect connector with self-locking function according to claim 5, characterized in that: The outer wall of one end of the lower joint (200) connected to the upper joint (100) is provided with a plurality of interference ribs (240), and the interference ribs (240) can abut against the inner wall of the upper joint (100).

7. The quick-connect connector with self-locking function according to claim 5, characterized in that: The outer wall of one end of the lower joint (200) connected to the upper joint (100) is provided with a plurality of positioning protrusions (250), and the upper joint (100) is provided with a plurality of positioning slots (150) adapted to the positioning protrusions (250).

8. The quick-connect connector with self-locking function according to claim 7, characterized in that: A plurality of positioning protrusions (250) are evenly arranged at equal intervals on the outer wall of the lower joint (200).

9. The quick-connect connector with self-locking function according to claim 1, characterized in that: The sealing member (210) comprises a plurality of sealing rings (500), and an isolation ring (211) is provided between two adjacent sealing rings (500).

10. The quick-connect connector with self-locking function according to claim 9, characterized in that: The lower joint (200) is provided with a mounting groove (260) for mounting the sealing member (210), and the upper joint (100) is provided with a pressure ring (160) for pressing the sealing member (210).

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