Quick release connector

The one-piece quick-release joint design solves the problem of U-shaped joint molds being unable to be injection molded and welded, achieving a joint structure with high strength, low cost and low leakage, suitable for automotive piping systems.

CN224135417UActive Publication Date: 2026-04-17FRANCOCHE PIPE SYST (CHANGSHU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FRANCOCHE PIPE SYST (CHANGSHU) CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing U-shaped quick-connect molds cannot be injection molded in one go; they need to be divided into two parts, the head and the tail, and then welded together, which increases costs and poses a risk of leakage.

Method used

Design a one-piece quick-release connector, including an arc section and a straight section, with the liquid flow port facing at an angle and equipped with a claw structure to achieve one-piece molding and multi-point snap-fit.

Benefits of technology

It improves the overall strength and stability of the joint, reduces production costs and leakage risks, reduces space occupation, simplifies the production process, and enhances installation convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a quick-release joint, which relates to the technical field of pipeline joints, and is arranged into an integrally formed structure, compared with the traditional U-shaped structure which can only be split into two parts to meet the feasibility of a mold, the integrally formed structure is more stable, the risk of leakage is not easy to occur, the production process is simpler, and the production cost is lower. The development cost and the injection molding production cost are effectively reduced, the included angle is formed between the first liquid flowing opening of the arc part and the second liquid flowing opening of the linear part instead of the direction of a traditional U-shaped connector, the overall structure is small in occupied space, the quick-release connector can be installed in a smaller boundary space, and the service life of the quick-release connector is prolonged. The technical problems that in the prior art, a connector of a U-shaped structure and a mold cannot be subjected to one-time injection molding, the connector needs to be divided into a head part and a tail part to be welded into a whole, cost is high, and leakage risks exist are solved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe joint technology, and in particular to a quick-release joint. Background Technology

[0002] With the rapid development of the automotive industry, plastic quick-connect fittings are being used more and more widely in water, air, oil and battery cooling systems.

[0003] With the diversification of vehicle models and the increasing number of application scenarios, some special installation conditions will be encountered. For example, in battery packs, due to the high degree of integration, the piping system is very close to the surrounding boundaries. When installing the pipe system joints, there is only a very small installation distance, or it can only be installed from certain harsh angles, or even installed in the opposite direction to the pipe. In such cases, it is necessary to design the joints as a U-shaped structure so that after assembly with the pipe, its orientation is opposite to that of the pipe, thereby achieving reverse installation.

[0004] However, for U-shaped joints, the mold cannot be injection molded in one go; it needs to be divided into two parts, the head and the tail, and then welded together. This not only adds an injection molding process but also an additional welding process. The extra process increases the cost of the joint, and welding can also reduce the structural strength and bring the risk of leakage.

[0005] Therefore, reducing the cost of reverse quick-connect connectors, improving their overall strength, and reducing leakage risks have become urgent technical optimization priorities. Utility Model Content

[0006] The purpose of this invention is to provide a quick-release connector to alleviate the technical problems of existing U-shaped connectors, which cannot be injection molded in one go, require two parts (head and tail) to be welded together, resulting in high costs and the risk of leakage.

[0007] The quick-release connector provided by this utility model is used in a pipeline system. The quick-release connector is configured as an integrally formed structure and includes: an arc portion and a straight portion.

[0008] The arc portion is arc-shaped, and the end of the straight portion is connected to the arc portion.

[0009] The arc portion has a first liquid flow port, and the straight portion has a second liquid flow port. The orientations of the first liquid flow port and the second liquid flow port are set at an angle.

[0010] In an optional implementation,

[0011] The quick-release connector also includes a first locking claw;

[0012] The first claw is connected to the arc portion, and the first claw is used to install the opponent on the straight portion.

[0013] In an optional implementation,

[0014] The first claw is located on the axis of the quick-release connector.

[0015] In an optional implementation,

[0016] The first claw includes a first connecting body and a first engaging body;

[0017] One end of the first connecting body is connected to the arc portion, and the other end of the first connecting body is connected to the first snap-fit ​​body;

[0018] The first connecting body extends along a direction parallel to the straight portion;

[0019] The first snap-fit ​​main body is configured to snap-fit ​​the counterpart component.

[0020] In an optional implementation,

[0021] The first snap-fit ​​body has an inclined snap-fit ​​slope at the end away from the first connecting body. The bottom end of the snap-fit ​​slope is located on the side away from the opponent, so that the opponent can move along the snap-fit ​​slope and the snap-fit ​​slope can snap the opponent.

[0022] In an optional implementation,

[0023] The quick-release connector also includes a second latch and a third latch;

[0024] Both the second and third jaws are connected to the arc portion, and both the second and third jaws are used to mount the opponent component onto the straight portion.

[0025] In an optional implementation,

[0026] The second and third claws are symmetrically arranged along the axis of the quick-release connector, and the second and third claws are located on both sides of the straight section.

[0027] In an optional implementation,

[0028] A sealing ring is provided on the outer surface of the straight section.

[0029] In an optional implementation,

[0030] The arc portion has a mounting surface on the side away from the straight portion.

[0031] In an optional implementation,

[0032] The outer contour shape formed by the arc portion and the straight portion forms an arc-shaped structure.

[0033] The quick-release connector provided by this utility model is designed as a one-piece molded structure. Compared with the traditional U-shaped connector, which can only be disassembled into two parts to meet mold feasibility, the one-piece molded structure is more stable, less prone to leakage risk, and has a simpler production process, effectively reducing development and injection molding production costs. In addition, the orientation of the first liquid flow port on the arc part is set at an angle to the orientation of the second liquid flow port on the straight part, instead of the same orientation as the traditional U-shaped connector. This makes the overall structure occupy less space, and the quick-release connector can be installed in a smaller boundary space. This alleviates the technical problem of the existing U-shaped connector, which cannot be injection molded in one go and needs to be divided into two parts and then welded together, resulting in higher costs and leakage risks. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the overall structure of the quick-release connector provided in this embodiment of the utility model;

[0036] Figure 2 This is a structural schematic diagram of the quick-release connector provided in an embodiment of the present utility model from another perspective;

[0037] Figure 3 A schematic diagram of the connection structure between the quick-release connector and the countersleeve provided in this embodiment of the utility model;

[0038] Figure 4 This is a schematic diagram showing the position of the mounting plane in the quick-release connector provided in this embodiment of the utility model;

[0039] Figure 5 A schematic diagram of the connection structure between the quick-release connector and the pipeline provided in this embodiment of the utility model.

[0040] Icons: 10 - Opposite part; 20 - Pipe; 100 - Arc part; 200 - Straight part; 300 - First claw; 310 - First connecting body; 320 - First snap-fit ​​body; 321 - Snap-fit ​​bevel; 400 - Second claw; 500 - Third claw; 600 - Sealing ring; 700 - Mounting plane. Detailed Implementation

[0041] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0045] like Figure 1 , Figure 2 and Figure 5 As shown, the quick-release connector provided in this embodiment is used in the pipeline 20 system. The quick-release connector is set as an integral molded structure. Compared with the two parts of the traditional U-shaped structure, the quick-release connector with the integral molded structure eliminates the welding process of the original two parts, and increases the overall strength and stability of the connector.

[0046] The quick-release connector specifically includes: an arc-shaped portion 100 and a straight portion 200; the arc-shaped portion 100 is arc-shaped, and an arc-shaped channel is formed inside the arc-shaped portion 100; the end of the straight portion 200 is connected to the arc-shaped portion 100, and a straight channel is formed inside the straight portion 200; the arc-shaped channel and the straight channel are connected to form a liquid flow channel; the arc-shaped portion 100 has a first liquid flow port, and the straight portion 200 has a second liquid flow port; the orientation of the first liquid flow port and the orientation of the second liquid flow port are set at an angle, that is, the liquid flow direction of the first liquid flow port and the liquid flow direction of the second liquid flow port are at an angle, making the structure more compact. Although it will reduce some of the reverse angle, the reduced reverse angle can be compensated by the pipe 20. In contrast, the traditional U-shaped connector has the same flow direction of the two liquid flow ports, and the overall U-shaped structure is larger in size.

[0047] The quick-release connector provided in this embodiment is designed as a one-piece molded structure. Compared with the traditional U-shaped connector, which can only be disassembled into two parts to meet mold feasibility, the one-piece molded structure is more stable, less prone to leakage risk, and has a simpler production process, effectively reducing development and injection molding production costs. Furthermore, the orientation of the first liquid flow port of the arc portion 100 is set at an angle to the orientation of the second liquid flow port of the straight portion 200, rather than the same orientation as the traditional U-shaped connector. This results in a smaller overall space occupation, allowing the quick-release connector to be installed in a smaller boundary space. This alleviates the technical problems of existing U-shaped connectors, where the mold cannot be injection molded in one go, requiring the connector to be divided into two parts and then welded together, which is costly and carries the risk of leakage.

[0048] like Figure 3 As shown, based on the above embodiments, in an optional embodiment, the quick-release connector provided in this embodiment further includes a first claw 300; the first claw 300 is connected to the arc portion 100, and the first claw 300 is used to install the opponent 10 on the straight portion 200.

[0049] It should be noted that during the installation of the opponent component 10, the opponent component 10 and the straight part 200 need to be close to each other. During the installation process, the opponent component 10 moves and abuts against the first claw 300. After reaching the locking position of the opponent component 10, the first claw 300 locks the opponent component 10.

[0050] In an optional embodiment, the first claw 300 is located on the axis of the quick-release connector, which is the axis of symmetry of the quick-release connector, and the first claw 300 is located above the straight section 200.

[0051] Regarding the structure and shape of the first chuck 300, specifically:

[0052] The first claw 300 is generally L-shaped and includes a first connecting body 310 and a first engaging body 320. The first connecting body 310 is the horizontal side of the L-shape, and the first engaging body 320 is the vertical side of the L-shape. The first connecting body 310 extends along a direction parallel to the straight section 200, and the first engaging body 320 bends toward the direction close to the straight section 200. One end of the first connecting body 310 is connected to the arc section 100, and the other end of the first connecting body 310 is connected to the first engaging body 320. The first engaging body 320 is configured to engage the opposing part 10.

[0053] In an optional embodiment, the end of the first snap-fit ​​body 320 away from the first connecting body 310 has a snap-fit ​​ramp 321 that is inclined. The inclined surface of the snap-fit ​​ramp 321 faces the opponent 10, and the bottom end of the snap-fit ​​ramp 321 is located on the side away from the opponent 10, so that the opponent 10 moves along the snap-fit ​​ramp 321 first. Then, after the snap-fit ​​protrusion on the opponent 10 passes the lowest point of the snap-fit ​​ramp 321, the snap-fit ​​ramp 321 snaps into the opponent 10, thereby realizing that the opponent 10 is snapped onto the straight part 200 by the first snap-fit ​​claw 300.

[0054] In an optional embodiment, the quick-release connector further includes a second claw 400 and a third claw 500; both the second claw 400 and the third claw 500 are connected to the arc portion 100, and both the second claw 400 and the third claw 500 are used to mount the counter 10 onto the straight portion 200.

[0055] It should be noted that the specific structure of the second claw 400 and the third claw 500 is the same as that of the first claw 300, only the arrangement position is different. The second claw 400 and the third claw 500 are symmetrically arranged along the axis of the quick-release connector, and the second claw 400 and the third claw 500 are located on both sides of the straight section 200.

[0056] The first claw 300, the second claw 400, and the third claw 500 are used to engage the opponent part 10 onto the straight section 200, with the engaging bodies on the first claw 300, the second claw 400, and the third claw 500 all facing the opponent part 10.

[0057] In an optional embodiment, a sealing ring 600 is provided on the outer surface of the straight portion 200, and the sealing ring 600 achieves a seal at the connection between the straight portion 200 and the opposing member 10.

[0058] like Figure 4 As shown, in an optional embodiment, the arc portion 100 is provided with a mounting surface 700 on the side away from the straight portion 200. The mounting surface 700 is a flat surface, which facilitates the installation and pressing of the counter part 10 by the worker.

[0059] In an optional embodiment, the outer contour shape formed by the arc portion 100 and the straight portion 200 forms an arc-shaped pull structure. Specifically, the overall quick-release connector adopts an arc-shaped pull structure, which greatly shortens the connector length. This allows the connector to be installed in a smaller boundary space, reducing coolant flow resistance and lowering process pressure drop.

[0060] The quick-release connector provided in this embodiment solves several problems existing in traditional U-shaped connectors in the prior art. The specific technical effects are as follows:

[0061] 1. Improved structural strength and stability

[0062] The one-piece molding structure eliminates the welding process compared to the traditional U-shaped structure with two welded parts, thus significantly improving the overall strength and stability of the joint and reducing the risk of defects or leaks that may be caused by the welding process.

[0063] 2. Simplified production process and reduced costs

[0064] The one-piece molding structure simplifies the production process, eliminating the need for segmented injection molding and subsequent welding procedures, effectively reducing development and injection molding production costs.

[0065] 3. Reduced space occupation

[0066] The first and second liquid flow ports of the quick-release connector are set at an angle, rather than the traditional U-shaped connector with the same flow direction. This angled setting makes the overall structure more compact, reduces the size of the connector, and allows it to be installed in a smaller boundary space, alleviating the problem that the existing U-shaped connector mold cannot be injection molded in one step.

[0067] The arc-pull structure design further shortens the joint length, reduces coolant flow resistance, and lowers process pressure drop.

[0068] 4. Convenient installation design

[0069] The first jaw 300, the second jaw 400, and the third jaw 500: An L-shaped jaw structure enables reliable engagement of the opposing component 10. The jaw's beveled engagement surface 321 allows the opposing component 10 to move smoothly during installation and ultimately engage properly, improving both ease of installation and reliability.

[0070] Furthermore, a flat mounting surface 700 is provided on the side of the arc portion 100 away from the straight portion 200, which facilitates the pressing operation by workers and improves assembly efficiency.

[0071] 5. Multi-point snap-fit ​​design improves reliability

[0072] The first claw 300, the second claw 400, and the third claw 500 are symmetrically arranged along the axis of the quick-release connector and are located on both sides of the straight section 200, forming a three-point locking structure, which enhances the fixing effect of the hand piece 10 and prevents it from loosening or falling off.

[0073] The quick-release connector provided in this embodiment, through its integrated molding structure, angled design, multi-point snap-fit, and 600 sealing ring, significantly reduces production costs and space occupation while ensuring strength and stability, and improves installation convenience and sealing performance. It successfully solves a number of technical problems existing in traditional U-shaped connectors, and has significant technological progress and practical application value.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick disconnect coupling for use in a pipe (20) system, characterized by, The quick-release connector is configured as an integrally formed structure, and the quick-release connector includes: an arc portion (100) and a straight portion (200); The arc portion (100) is arc-shaped, and the end of the straight portion (200) is connected to the arc portion (100); The arc portion (100) has a first liquid flow port, and the straight portion (200) has a second liquid flow port. The orientation of the first liquid flow port and the orientation of the second liquid flow port are set at an angle.

2. The quick-release connector according to claim 1, characterized in that, The quick-release connector also includes a first locking claw (300); The first claw (300) is connected to the arc portion (100) and is used to mount the opponent (10) on the straight portion (200).

3. The quick-release connector according to claim 2, characterized in that, The first claw (300) is located on the axis of the quick-release connector.

4. The quick-release connector according to claim 3, characterized in that, The first claw (300) includes a first connecting body (310) and a first engaging body (320); One end of the first connecting body (310) is connected to the arc portion (100), and the other end of the first connecting body (310) is connected to the first snap-fit ​​body (320); The first connecting body (310) extends along a direction parallel to the straight portion (200); The first snap-fit ​​body (320) is configured to snap-fit ​​the counterpart (10).

5. The quick-release connector according to claim 4, characterized in that, The first snap-fit ​​body (320) has an inclined snap-fit ​​slope (321) at the end away from the first connecting body (310). The bottom end of the snap-fit ​​slope (321) is located on the side away from the opponent (10) so that the opponent (10) can move along the snap-fit ​​slope (321) and the snap-fit ​​slope (321) can snap the opponent (10).

6. The quick-release connector according to claim 2, characterized in that, The quick-release connector also includes a second latch (400) and a third latch (500); The second claw (400) and the third claw (500) are both connected to the arc portion (100), and the second claw (400) and the third claw (500) are both used to install the opponent (10) on the straight portion (200).

7. The quick-release connector according to claim 6, characterized in that, The second claw (400) and the third claw (500) are symmetrically arranged along the axis of the quick-release connector, and the second claw (400) and the third claw (500) are located on both sides of the straight section (200).

8. The quick-release connector according to claim 1, characterized in that, A sealing ring (600) is provided on the outer surface of the straight portion (200).

9. The quick-release connector according to claim 1, characterized in that, The arc portion (100) has a mounting surface (700) on the side away from the straight portion (200).

10. The quick-release connector according to any one of claims 1-9, characterized in that, The outer contour shape formed by the arc portion (100) and the straight portion (200) forms an arc-shaped structure.