External lock quick-connect connector with rotation function

Abstract

This invention discloses an externally locking quick-connect coupling with a rotating function, belonging to the field of automotive fluid transmission technology. It includes a male connector body and a female connector body; one end of the male connector body is provided with a quick-connect plug, and the outer periphery of the male connector body is provided with a first annular protrusion; one end of the female connector body is provided with a quick-connect end, and the outer periphery of the female connector body is provided with a second annular protrusion; the quick-connect plug mates with the quick-connect end; a rotating body and a clamp are sequentially arranged between the male connector body and the female connector body, the rotating body and the clamp are both sleeved on the central post of the male connector body, and the clamp mates with the rotating body; the rotating body rotates relative to the central post of the male connector body; the clamp is used to clamp or release the male connector body. The prepared externally locking quick-connect coupling has the functions of quick connection and quick disassembly.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile fluid transmission, and in particular relates to an external lock quick-plug connector with a rotation function. Background Art

[0002] At present, the heating methods in the SCR system of the vehicle, in addition to electric auxiliary heating, also use the heat generated by the engine for heating, and in the thermal management system of the battery pack of new energy vehicles, the heat needs to be connected and transmitted through the pipe system. Although there are various connection methods on the market, such as direct connection of hoses through clamps, etc., this is not suitable for nylon tube connection. In order to adapt to the connection with nylon tubes, high temperature resistance, hydrolysis resistance, quick plug-in and pull-out functions, simple structure, and high connection reliability, we need to develop quick-plug connectors with corresponding functions.

[0003] Engine cooling, SCR systems, and new energy battery packs use hot circulating water insulation, which is mainly connected by hoses. Generally, the hoses have thick walls and occupy a large space. The connection joints are mainly made of metal, which has poor corrosion resistance. After the connection, clamps need to be added to tighten and reinforce them, which makes installation extremely inconvenient. In addition, since heat needs to be connected and transmitted through the pipeline system, the material of the hose is not resistant to high temperature and hydrolysis, and it is easy to leak. In order to solve the above problems, the following two methods are usually used: First, the nylon tube can be used to change the quick plug connection, and its connection quick plug is also relatively mature; second, the SAE structure quick plug is used, but the SAE structure quick plug is large in size and occupies a large space, so it cannot be used. Instead, it is necessary to redesign and develop a quick plug function, which is conducive to nylon tube connection and occupies a small space. Its built-in rotatable function is conducive to installation according to the operating space, and it is convenient for the operator to adjust the unlocking position to the most comfortable direction for unlocking during replacement and maintenance.

[0004] For example, a Chinese patent, application number: CN201420225119.4, publication number: CN203927181U, discloses a quick connector, and its technical solution is as follows: "including a female connector and a male connector, the male connector is a hollow cylinder, the female connector includes a hollow female connector body with two ends opened, and the rear end of the female connector body is connected to a connecting sleeve for connecting to a pipeline, characterized in that a clip that can clamp or loosen the male connector is provided on the front end surface of the female connector body, and a gasket with a middle opening coaxial with the female connector body is provided in the female connector body, the gasket cooperates with an axially movable sealing component, and the sealing component includes a head that can pass through the gasket and can contact the male connector and a sealing flange located behind the head that can fit with the gasket to seal the opening of the gasket". However, the following problems exist: the pipeline is still a rubber hose, which is not suitable for high temperature and high heat environment, and cannot achieve quick disassembly. The spring sheet is easy to lose elasticity during long-term deformation, thereby failing to ensure the stable and effective multiple connections of the male and female joints, resulting in a low degree of tightness between the clip and the male and female joints.

[0005] In the prior art, the connectors used in commercial vehicle engine systems, after-treatment systems and new energy battery packs to pass coolant media to heat urea liquid or exchange heat usually consist of a standard female connector connected to the engine or urea tank or pump or battery pack, and a male connector body connected to a nylon tube of corresponding specifications, but the above structure cannot achieve quick plug-in or disassembly. For example, the Chinese patent, application number: CN201821667638.0, publication number: CN209294622U, discloses a plastic quick-connect connector for automobile pipes with a secondary locking mechanism, and its technical solution includes a shell, a first sealing ring, an isolating ring, a second sealing ring, a retaining ring, a lock, a key, and a male connector; a first cavity, a second cavity and a pipe end are provided in the shell, and the pipe end is connected to a nylon tube and rubber; the first sealing ring, the isolating ring, the second sealing ring and the retaining ring are sequentially installed in the first cavity to form a sealing area; the lock is installed in the second cavity to form a locking mechanism, the male connector is inserted into the female connector, a flange is provided on the male connector, the flange is snap-connected with the locking mechanism, the lock is inserted perpendicular to the axial direction of the male connector to form a secondary locking, and the key is used to assist in unlocking. Preferably, the lock is provided with a first locking arm and a second locking arm, a first protrusion is provided inside the first locking arm, a second protrusion is provided inside the second locking arm, the second cavity of the housing is further provided with a first locking arm guide groove and a second locking arm guide groove, a first limiting groove is provided at the end of the first locking arm guide groove, a second limiting groove is provided at the end of the second locking arm guide groove, and in the secondary locking state, the first protrusion is inserted into the first limiting groove, and the second protrusion is inserted into the second limiting groove. Its structure is relatively complex, and although it can meet the requirement of stable locking between the male and female joints, the disassembly process takes a long time, and the effect of quick disassembly cannot be achieved. In addition, due to the opening direction of the lock, there are requirements for the direction of assembly. If the assembly space is narrow and the lock needs to be rotated to achieve loading and unloading, it is difficult to achieve effective rotational coordination.

[0006] The present invention adopts a quick-insertion structure and uses a nylon tube assembly with lighter weight and thinner wall thickness (smaller space occupied), which is more convenient when bundled with other pipelines, has a smaller total diameter and is more beautiful. Summary of the invention

[0007] 1. Problems to be solved

[0008] In view of the problems existing in the above-mentioned prior art, the present invention provides an external lock quick-connect connector with a rotation function, which has the functions of quick connection and quick disassembly, has a simple overall structure, occupies a small space, is convenient and reliable to connect, and is easy to disassemble.

[0009] 2. Technical solution

[0010] To solve the above problems, the present invention adopts the following technical solutions.

[0011] An external lock quick-plug connector with a rotation function, comprising a male connector body and a female connector body;

[0012] A quick plug is provided at one end of the male connector body, and a first annular boss is provided on the outer periphery of the male connector body;

[0013] One end of the female connector body is provided with a quick-insertion end, and the outer periphery of the female connector body is provided with a second annular boss;

[0014] The quick plug is matched with the quick plug end;

[0015] A rotating body and a clip are sequentially arranged between the male connector body and the female connector body, the rotating body and the clip are both sleeved on the middle column of the male connector body, and the clip cooperates with the rotating body;

[0016] The rotating body is rotatably matched with the middle column of the male connector body;

[0017] The clamp is an integrated or split structure, and is used to clamp or loosen the male connector body.

[0018] In the above-mentioned external lock quick-connect connector with rotation function,

[0019] The clamp is an integrated structure, and has an elastic Ω-shaped structure, wherein the two ends of the Ω-shaped structure are used to clamp or loosen the male connector body;

[0020] At the same time, the following arrangement can also be made: the clip is a split structure, the clip has a first rotating arm, a second rotating arm and an elastic body, one end of the first rotating arm is hinged to one end of the second rotating arm, one end of the elastic body is clamped on the first rotating arm, and the other end of the elastic body is clamped on the second rotating arm.

[0021] Also includes a sealing ring;

[0022] The sealing ring is located between the clip and the female connector body.

[0023] In the above-mentioned external lock quick-connect connector with rotation function,

[0024] The rotating body is connected to the middle column of the male connector body through a plurality of inverted buckles.

[0025] In the above-mentioned external lock quick-connect connector with rotation function,

[0026] The outer periphery of the rotating body is provided with a plurality of raised outer edges.

[0027] In the above-mentioned external lock quick-connect connector with rotation function,

[0028] The rotating body is an O-shaped groove structure;

[0029] The clip is covered on the outer peripheral side of the rotating body;

[0030] The clamp is provided with a limiting member, and the limiting member is used to prevent the clamp from sliding relative to the rotating body.

[0031] In the above-mentioned external lock quick-connect connector with rotation function,

[0032] The limiting piece is a protruding piece, and the protruding piece extends inwardly relative to the side wall of the clip.

[0033] In the above-mentioned external lock quick-connect connector with rotation function,

[0034] The clamp has a first caliper and a second caliper;

[0035] The first caliper and the second caliper are arranged alternately.

[0036] In the above-mentioned external lock quick-connect connector with rotation function,

[0037] One end of the male connector body is connected to a first pipeline;

[0038] One end of the female connector body is connected to a second pipeline.

[0039] In the above-mentioned external lock quick-connect connector with rotation function,

[0040] Also included is a male connector end;

[0041] One end of the male connector connection end is vertically connected to one end of the male connector body;

[0042] The other end of the male connector connection end is connected to the first pipeline.

[0043] In the above-mentioned external lock quick-connect connector with rotation function,

[0044] A plurality of bamboo-joint reverse teeth are arranged on the outer periphery of the male connector connection end.

[0045] 3. Beneficial effects

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] It can be seen that the external lock quick-plug connector with a rotating function designed by the present invention has the functions of quick connection and quick disassembly, has a simple overall structure, occupies a small space, is convenient and reliable to connect, and is easy to disassemble; the improvements of the present invention are mainly reflected as follows: the rotating body is connected to the male connector body by an inverted snap buckle to ensure the reliability of the connection, and is also easy to implement the process, and at the same time the rotating body can move freely around the middle column of the male connector body; a number of protrusions can be provided on the male connector body, which play a certain damping role when the rotating body rotates, that is, to ensure the adjustment of the occupied space, which can facilitate the operator to adjust the unlocking position to the most comfortable direction for the unlocking operation; the clip with an external lock function is an integrated structure or a split structure, and because it has a certain elasticity, it will rotate The body is wrapped to achieve connection with the rotating body, ensuring its connectivity and unlockable maintainability. In addition, in the working state, under the vibration condition of the whole vehicle, it is ensured that it cannot rotate in any direction at will to reduce its failure and wear function; the sealing ring is used for sealing, which is superior to the hose connection sealing form in the prior art; the quick-insertion structure between the male connector body and the female connector body is a split structure, and the rotating body and the clip are also a split structure, which solves the problem that the processing and manufacturing process cannot be integrated and simplifies the processing technology; the rotating body has a rotation adjustment state, and its unlocking has a rotation position adjustment function, which solves the problem of spatial interference and the problem of unlocking being unable to operate, and also facilitates the operator to adjust the unlocking position to the most comfortable direction for unlocking operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a three-dimensional structure exploded diagram of an external lock quick-connect connector with a rotation function in an embodiment of the present invention;

[0049] Figure 2 It is a side view of the three-dimensional structure of the external lock quick-connect connector with a rotation function in an embodiment of the present invention;

[0050] Figure 3 A bottom view of an external lock quick-connect connector with a rotation function according to an embodiment of the present invention;

[0051] Figure 4 A top view of an external lock quick-connect connector with a rotation function according to an embodiment of the present invention;

[0052] Figure 5 It is a structural diagram of a split clip of an external lock quick-connect connector with a rotation function in an embodiment of the present invention.

[0053] In the figure: 100, male connector body; 101, quick plug; 102, first annular boss; 103, middle column; 104, male connector connection end; 105, bamboo joint reverse teeth;

[0054] 200, female connector body; 201, quick-insert end; 202, second annular boss;

[0055] 300, rotating body; 301, raised outer edge;

[0056] 400, clip; 401, stopper; 402, first caliper; 403, second caliper; 404, first rotating arm; 405, second rotating arm; 406, elastic body;

[0057] 500, sealing ring;

[0058] 600, first pipeline;

[0059] 700. Second pipeline. DETAILED DESCRIPTION

[0060] The present invention is described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In addition, the terms "first", "second", and "third" 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", "second", and "third" 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.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" 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, or 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.

[0064] In this application, the external lock quick-connect connector with rotation function, such as Figure 1 As shown, it includes a male connector body 100 and a female connector body 200. Figure 1 As shown, one end of the male connector body 100 is connected to a first pipeline 600, and one end of the female connector body 200 is connected to a second pipeline 700. In the above arrangement, both the first pipeline 600 and the second pipeline 700 are nylon hoses.

[0065] like Figure 1 As shown, the end of the male connector body 100 facing the female connector body 200 is provided with a rotating body 300 and a clip 400 in sequence. The rotating body 300 and the clip 400 are both sleeved on the middle column 103 of the male connector body 100. The rotating body 300 is rotated relative to the middle column 103 of the male connector body 100; so that when the male and female connectors need to be plugged in during installation, replacement and maintenance, the operator can adjust the unlocking position (the double-wing position of the clip 400) to the most comfortable position, and can be easily installed according to the operating space.

[0066] The clip 400 is matched with the rotating body 300. Figure 3 and Figure 4 As shown, the cooperation between the rotating body 300 and the clip 400 realizes the stable cooperation between the male connector body 100 and the female connector body 200. Specifically, the rotating body 300 is an O-shaped groove structure, the clip 400 is an Ω-shaped structure, and the clip 400 is coated on the outer peripheral side of the rotating body 300.

[0067] It should be noted that the clip 400 may be Figure 1 and Figure 2 The one-piece structure shown can also be Figure 5 The split structure shown.

[0068] like Figure 1 and Figure 2 As shown, the clamp 400 is an integrated structure, and the clamp 400 has an elastic Ω-shaped structure, wherein the two ends of the Ω-shaped structure are used to clamp or loosen the male connector body 200. Figure 5 As shown, the clip 400 is a split structure, and the clip 400 has a first rotating arm 404, a second rotating arm 405 and an elastic body 406, and the first rotating arm 404 and the second rotating arm 405 are respectively axially symmetrical C-shaped structures. Figure 5As shown, the left end of the first rotating arm 404 and the left end of the second rotating arm 405 are connected together through a C-shaped flexible connection structure of appropriate size, so that the first rotating arm 404 and the second rotating arm 405 of the clip can be opened and moved away from each other, so that when the fingers are applied to the distal ends of the first rotating arm 404 and the second rotating arm 405 in reverse, the diameter of the clip 400 is opened, so that it is inserted into the outer peripheral side of the rotating body 300. One end of the elastic body 406 is clamped on the first rotating arm 404, and the other end of the elastic body 406 is clamped on the second rotating arm 405. The material of the elastic body 406 can be a light metal or polyester material with a certain tension, so as to help the first rotating arm 404 and the second rotating arm 405 to quickly reset and maintain a tight state after being inserted into the outer peripheral side of the rotating body 300.

[0069] The above-mentioned split-structure clip 400 is not limited to the above-mentioned structure, and other structures that can realize the split function are within the protection scope of this application.

[0070] Figure 2 FIG. 2 is a side view of the three-dimensional structure of an external lock quick-connect connector with a rotation function according to an embodiment of the present invention. Figure 2 As shown, the external lock quick-connect connector with a rotation function also includes a male connector connection end 104; one end of the male connector connection end 104 is vertically connected to one end of the male connector body 100; the other end of the male connector connection end 104 is connected to the first pipeline 600. In order to facilitate the fastening of the nylon hose, a plurality of bamboo-jointed reverse teeth 105 are arranged on the outer periphery of the male connector connection end 104.

[0071] A quick plug 101 is disposed at one end of the male connector body 100 facing the female connector, and a first annular boss 102 is disposed on the outer periphery of the male connector body 100 .

[0072] like Figure 2 As shown, a quick-insert end 201 is provided at one end of the female connector body 200 facing the male connector, and a second annular boss 202 is provided on the outer periphery of the female connector body 200 ; the quick plug 101 matches with the quick-insert end 201 .

[0073] When the above structure is used, the quick plug 101 of the male connector body 100 can cooperate with the quick plug end 201 of the female connector body 200, so the male connector body 100 only needs to be directly inserted into the female connector body 200, which is fast, convenient and efficient.

[0074] like Figure 2As shown, the clamp 400 is provided with a limiting member 401, and the limiting member 401 is used to prevent the clamp 400 from sliding relative to the rotating body 300. At the same time, the limiting member 401 is a protrusion, and the protrusion extends inward relative to the side wall of the clamp 400. After the clamp 400 is inserted into the rotating body 300, the clamp 400 is installed. Due to the effect of the protrusion, the clamp 400 can continue to descend and prevent the clamp 400 from continuing to fall. The limiting members 401 are centrally symmetrically arranged, for example, 3, 4, etc.

[0075] Meanwhile, the clip 400 comprises a first caliper 402 and a second caliper 403 , and the first caliper 402 and the second caliper 403 are arranged alternately. The arrangement of the two calipers facilitates improving the stability of the clip 400 during use.

[0076] Therefore, the clip 400 is used to clamp or release the male connector body 200 .

[0077] In addition, in order to ensure effective sealing between the male connector body 100 and the male connector body 100 , a sealing ring 500 is further provided. The sealing ring 500 is located between the clip 400 and the female connector body 200 .

[0078] In addition, as a further improvement, in the external lock quick-connect connector with a rotation function, the rotating body 300 is connected to the middle column 103 of the male connector body 100 through multiple inverted clips (for example, two inverted clips), which makes it easier for the rotating body 300 to move freely around the main body axis (i.e., the middle column 103 of the male connector body 100).

[0079] As a further improvement, Figure 2 As shown, in the external lock quick-connect connector with a rotation function, the outer periphery of the rotating body 300 is provided with a plurality of raised outer edges 301, which will play a certain damping role when the rotating body 300 rotates during use.

[0080] The actual operation method is as follows:

[0081] Initial state: prepare the male connector body 100, first install the sealing ring 500 on the middle column 103 thereof, then install the rotating body 300, and finally install the clip 400; wherein, since the clip 400 is an Ω-shaped structure, and the matching rotating body 300 is an O-shaped groove structure, the clip 400 just overlaps with the O-shaped groove structure of the rotating body 300 to form a covering shape, and the upper edge of the rotating body 300 is a convex edge, so that the clip 400 will not fall off, and at the same time, a limiting member 401 is provided in the middle of the clip 400 to ensure that the clip 400 will not fall along the outer periphery of the rotating body 300.

[0082] Installation status: After the male connector body 100 and the nylon tube are assembled, the quick plug 100 of the male connector body 100 is directly inserted into the interface of the quick plug end 201 of the female connector body 200. Through the introduction of the middle column 103 of the male connector body 100, its clip 400 contacts the female interface body 100. At the same time, the sealing ring 500 on the middle column 103 of the male connector body 100 cooperates with the inner hole of the quick plug end 201 of the female connector body 200. The sealing ring 500 is compressed to form a seal, and the first caliper 402 and the second caliper 403 are opened by the inclined surface of the clip 400 and the second annular boss 202 of the female connector body 200 under the action of the assembly force. The quick plug 101 of the male connector body 100 continues to be assembled forward. After being assembled in place, the first caliper 402 and the second caliper 403 rebound, and the inverted teeth of the two calipers are just stuck in the groove of the female connector body 100 to form an effective connection.

[0083] Disassembly state: by manually pressing the arms of the first caliper 402 and the second caliper, the two side walls of the clamp 400 are opened, and the male connector body 100 is pulled out with external force, so that the connection state between the first caliper 402, the second caliper 403 of the clamp 400 and the female connector body 200 is invalidated, so that the male connector body 100 is pulled out from the inside of the female connector body 200, and the disassembly between the male connector body 100 and the female connector body 200 is completed.

[0084] It should be noted that the male connector body 100 and the female connector body 200 are mainly used for pipe connector connection and heat transfer in automobile engines, post-processing and new energy battery packs. Conventional standard connector specifications can be used in specific use. They are widely used and have strong compatibility.

[0085] It can be seen that the external lock quick-connect connector with a rotation function designed by the present invention has the functions of quick connection and quick disassembly, has a simple overall structure, occupies a small space, is convenient and reliable to connect, and is easy to disassemble; the improvements of the present invention are mainly embodied as follows: the rotating body 300 is connected to the male connector body 100 by an inverted buckle to ensure the reliability of the connection and facilitate the implementation of the process, and at the same time the rotating body 300 can move freely around the middle column 103 of the male connector body 100; a number of protrusions can be provided on the male connector body 100, which play a certain damping role when the rotating body 300 rotates, that is, to ensure the adjustment of the occupied space, which can facilitate the operator to adjust the unlocking position to the most comfortable direction for the unlocking operation; the clip 400 with an external lock function is an integrated structure or a split structure, and because it has a certain elasticity, it will rotate The body 300 is wrapped to achieve connection with the rotating body 300, ensuring its connectivity and unlockable maintainability. In addition, in the working state, under the vibration condition of the whole vehicle, it is ensured that it cannot rotate in any direction at will to reduce its failure and wear function; the sealing ring 500 is used for sealing, which is superior to the hose connection sealing form in the prior art; the quick-insertion structure between the male connector body 100 and the female connector body 200 is a split structure, and the rotating body 300 and the clip 400 are also a split structure, which solves the problem that the processing and manufacturing process cannot be integrated and simplifies the processing technology; the rotating body 300 has a rotation adjustment state, and its unlocking has a rotation position adjustment function, which solves the problem of spatial interference and the problem of unlocking being unable to operate, and also facilitates the operator to adjust the unlocking position to the most comfortable direction for unlocking operation.

[0086] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0087] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An external lock quick-connect connector with a rotation function, characterized in that: It comprises a male connector body (100) and a female connector body (200); A quick plug (101) is provided at one end of the male connector body (100), and a first annular boss (102) is provided on the outer periphery of the male connector body (100); One end of the female connector body (200) is provided with a quick-insertion end (201), and the outer periphery of the female connector body (200) is provided with a second annular boss (202); The quick plug (101) matches with the quick plug end (201); A rotating body (300) and a clamp (400) are sequentially arranged between the male connector body (100) and the female connector body (200); the rotating body (300) and the clamp (400) are both sleeved on the middle column (103) of the male connector body (100); and the clamp (400) and the rotating body (300) are matched with each other; The rotating body (300) is rotatably matched with the middle column (103) of the male connector body (100); The clamp (400) is of a split type and is used to clamp or loosen the male connector body (200); The clamp (400) has an elastic Ω-shaped structure, wherein the two ends of the Ω-shaped structure are used to clamp or loosen the male connector body (200): The clamp (400) comprises a first caliper (402) and a second caliper (403); The first caliper (402) and the second caliper (403) are arranged alternately; The clip (400) is of a split structure, and comprises a first rotating arm (404), a second rotating arm (405) and an elastic body (406); one end of the first rotating arm (404) is hinged to one end of the second rotating arm (405); one end of the elastic body (406) is clamped on the first rotating arm (404); and the other end of the elastic body (406) is clamped on the second rotating arm (405); The left end of the first rotating arm (404) and the left end of the second rotating arm (405) are connected together via a C-shaped flexible connection structure of appropriate size, so that the first rotating arm (404) and the second rotating arm (405) of the clip (400) can be opened and moved away from each other; When fingers are applied in reverse to the distal ends of the first rotating arm (404) and the second rotating arm (405), the diameter of the clip (400) is opened, thereby being inserted into the outer peripheral side of the rotating body (300); One end of the elastic body (406) is clamped on the first rotating arm (404), and the other end of the elastic body (406) is clamped on the second rotating arm (405); The elastic body (406) helps the first rotating arm (404) and the second rotating arm (405) to quickly return to their original position and maintain a tightly held state after being inserted into the outer peripheral side surface of the rotating body (300); The rotating body (300) is an O-shaped groove structure; The clip (400) is coated on the outer peripheral side surface of the rotating body (300); A limiting member (401) is provided on the clamp (400), and the limiting member (401) is used to prevent the clamp (400) from sliding relative to the rotating body (300); The limiting member (401) is a protruding piece, and the protruding piece extends inwardly relative to the side wall of the clip (400). When the clip (400) is installed after being inserted into the rotating body (300), the protruding piece can prevent the clip (400) from continuing to fall.

2. The external lock quick-connect connector with rotation function according to claim 1, characterized in that: Also includes a sealing ring (500); The sealing ring (500) is located between the clip (400) and the female connector body (200); The rotating body (300) is connected to the middle column (103) of the male connector body (100) via a plurality of inverted buckles; The outer periphery of the rotating body (300) is provided with a plurality of raised outer edges (301).

3. The external lock quick-connect connector with rotation function according to claim 2, characterized in that: One end of the male connector body (100) is connected to a first pipeline (600); One end of the female connector body (200) is connected to a second pipeline (700).

4. The external lock quick-connect connector with rotation function according to claim 3, characterized in that: Also included is a male connector end (104); One end of the male connector connecting end (104) is vertically connected to one end of the male connector body (100); The other end of the male connector connection end (104) is connected to the first pipeline (600).

5. The external lock quick-connect connector with rotation function according to claim 4, characterized in that: A plurality of bamboo-joint reverse teeth (105) are arranged on the outer periphery of the male connector connection end (104).

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