A new type of jaw joint

By using plastic locking clips and inclined connecting plates in the claw connector, the problem of reduced locking force caused by wear in traditional claw connectors is solved, resulting in a longer service life and lower operating costs.

CN224414627UActive Publication Date: 2026-06-26YUHUAN HUANENG IMPELLER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUHUAN HUANENG IMPELLER CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional claw connectors suffer from reduced locking force due to wear on the metal protrusions, resulting in a shorter service life and difficulty in repair.

Method used

The locking buckle is made of plastic and features an inclined connecting piece and a thorn design, which makes it easy to remove and prevents rotational detachment, reducing wear and extending service life.

Benefits of technology

It improves the service life of claw connectors, reduces usage costs, and makes disassembly more convenient.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel claw joint belongs to pipe fitting technical field. It has solved the problem of easy wear and tear of the existing claw joint connection. The novel claw joint, including male head and female head, is provided with a plurality of guide spokes on the male head, and the guide spokes are provided with a guide inclination angle, the end of the guide spoke is provided with a limiting platform, a plurality of clamping claws are arranged on the side wall of the female head, a clamping groove is arranged on the outer wall of each clamping claw, a locking buckle is arranged in the clamping groove, a limiting block is arranged at the two ends of the locking buckle, a clamping square hole is arranged on the two sides of the guide spoke, and the limiting block is embedded in the clamping square hole. The utility model has the advantages of simple disassembly and assembly, low use cost and low loss.
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Description

Technical Field

[0001] This utility model belongs to the field of pipe fittings technology, and relates to a connector, particularly a novel claw connector. Background Technology

[0002] Claw couplings, also known as quick couplings or claw-type couplings, are devices used for quickly connecting and disconnecting fluid lines or pneumatic systems. They are characterized by a symmetrical claw-shaped locking structure, achieving a sealed connection through a rotating sleeve or snap-fit. The couplings are typically made of stainless steel, brass, or engineering plastics and feature built-in sealing rings, such as O-rings, to ensure leak-proof operation.

[0003] Traditional claw connectors use the engagement of spokes and limiting claws to fix the connector, thereby limiting both ends of the connector and preventing it from falling off due to rotation. Typically, the spokes have a gradually thickening structure and a locking groove is set on the end platform. The limiting claw has a protrusion that engages in the locking groove. The claw connector is fixed by the elastic deformation of the metal. However, after long-term use, the metal protrusion will wear due to compression and friction, resulting in a decrease in locking force, which is difficult to repair and has a short service life. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a reusable, self-locking novel claw connector.

[0005] The purpose of this utility model can be achieved through the following technical solution: A novel claw-type connector, characterized in that it includes a male head and a female head, wherein the male head is provided with a plurality of guide spokes, and the guide spokes are provided with guide inclination angles, and the end of the guide spokes is provided with a limiting platform; the side wall of the female head is provided with a plurality of claws, and the outer wall of each claw is provided with a locking groove, and the locking groove is provided with a locking buckle; both ends of the locking buckle are provided with limiting blocks; both sides of the guide spokes are provided with locking square holes, and the limiting blocks are fitted into the locking square holes.

[0006] In the aforementioned novel claw connector, two inclined and parallel connecting pieces are provided between the locking buckle and the limiting block. The end of each connecting piece is provided with a through groove, and the connecting piece is provided with a thorn, the end of which is placed in the through groove.

[0007] In the aforementioned novel claw connector, a trapezoidal support arm is provided between the claw and the female head, and an inclined pressing rod is provided on the locking buckle. The pressing rod protrudes from the support arm, and a pressing gap is provided between the pressing rod and the support arm.

[0008] In the aforementioned novel claw connector, the support arm has a through hole for mounting the limiting block, and the connecting piece and a portion of the limiting block are placed inside the through hole.

[0009] Compared with the existing technology, this new claw connector has a locking buckle on the female claw. The locking buckle limits the rotation of the female and male heads and prevents them from disengaging. The locking buckle has a connecting and through groove, making it easier and more convenient to remove. The plastic locking buckle has low operating cost. The wear and tear of the connector is reduced by wearing out the locking buckle, resulting in a long service life and low operating cost. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this novel claw connector.

[0011] Figure 2 This is a schematic diagram of the structure of this novel claw connector.

[0012] Figure 3 This is a schematic diagram of the structure of the male claw connector of this novel type.

[0013] Figure 4 This is a schematic diagram of the structure of the new claw-type connector locking buckle.

[0014] Figure 5 This is a schematic diagram of the partial cross-section of the female head of this novel claw-type connector.

[0015] In the diagram, 1. Male head; 2. Guide tilt angle; 3. Female head; 4. Guide spoke; 5. Support arm; 6. Pressing rod; 7. Locking buckle; 8. Claw; 9. Limiting platform; 10. Snap-fit ​​groove; 11. Spike; 12. Connecting piece; 13. Through groove; 14. Limiting block; 15. Pressing gap; 16. Through hole; 17. Snap-fit ​​square hole. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1 , 2As shown in Figures 3, 4, and 5, this novel claw-type connector includes a male head 1 and a female head 3. The male head 1 is provided with several guide spokes 4, and the guide spokes 4 are provided with a guide tilt angle 2. The end of the guide spokes 4 is provided with a limiting platform 9. The side wall of the female head 3 is provided with several claws 8. The outer wall of each claw 8 is provided with a locking groove 10, and a locking buckle 7 is provided in the locking groove 10. Both ends of the locking buckle 7 are provided with limiting blocks 14. Both sides of the guide spokes 4 are provided with locking square holes 17. The limiting blocks 14 are fitted into the locking square holes 17. The locking buckle 7 is made of plastic. During installation, the locking buckle is placed in the locking groove 10. When the female head 3 is rotated and connected, it connects and locks with the male head 1. The limiting blocks 14 are engaged in the locking square holes 17 to prevent the connection from falling off due to accidental rotation of the male head 1 and the female head 3. During disassembly, the locking buckle 7 is removed first, and then the male head 1 or the female head 3 can be rotated to complete the separation.

[0018] Preferably, two inclined and parallel connecting pieces 12 are provided between the locking buckle 7 and the limiting block 14. The end of the connecting piece 12 is provided with a through groove 13 and a thorn 11 is provided on the connecting piece 12. The end of the thorn 11 is placed in the through groove 13. When disassembling, the locking buckle 7 is squeezed, so that the thorn 11 is squeezed into the through groove 13. Since the side wall of the through groove 13 is thin, repeated squeezing will cause the locking buckle 7 to break along the through groove 13. After breaking, one side of the locking buckle 7 is released from the lock, and the locking buckle 7 can be easily removed.

[0019] Preferably, a trapezoidal support arm 5 is provided between the claw 8 and the female head 3, and an inclined pressing rod 6 is provided on the locking buckle 7. The pressing rod 6 protrudes from the support arm 5, and a pressing gap 15 is provided between the pressing rod 6 and the support arm 5. The pressing rod 6 protrudes from the support arm 5 and, in conjunction with the pressing gap 15, the pressing arm can achieve short-distance pressing. When pressing, the connecting piece 12, which is thinner than the locking buckle 7, will deform first and cause the thorn 11 to squeeze through the through groove 13, accelerating the breakage of the connecting piece 12.

[0020] Preferably, the support arm 5 has a through hole 16 for mounting the limiting block 14. The connecting piece 12 and one end of the limiting block 14 are placed in the through hole 16, and the limiting block 14 is placed in the through hole 16 to prevent the connecting piece 12 from breaking due to external force twisting the male head 1 or the female head 3. After the squeezing locking buckle 7 breaks, the connecting piece 12 on one side will be fixed on the limiting block 14, and the limiting block 14 can be removed by hooking the thorn 11.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document frequently uses terms such as male head 1, guide tilt angle 2, female head 3, guide spoke 4, support arm 5, pressing rod 6, locking buckle 7, claw 8, limiting platform 9, snap-fit ​​groove 10, thorn 11, connecting piece 12, through groove 13, limiting block 14, pressing gap 15, through hole 16, snap-fit ​​square hole 17, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A novel claw connector, characterized in that, The device includes a male head (1) and a female head (3). The male head (1) is provided with several guide spokes (4) and a guide tilt angle (2) is provided on the guide spokes (4). The end of the guide spokes (4) is provided with a limiting platform (9). The side wall of the female head (3) is provided with several claws (8). The outer wall of each claw (8) is provided with a locking groove (10). The locking groove (10) is provided with a locking buckle (7). The locking buckle (7) is provided with a limiting block (14) at both ends. The guide spokes (4) is provided with a locking square hole (17) on both sides. The limiting block (14) is fitted into the locking square hole (17).

2. The novel claw connector according to claim 1, characterized in that, Two inclined and parallel connecting pieces (12) are provided between the locking buckle (7) and the limiting block (14). The end of the connecting piece (12) is provided with a through groove (13). The connecting piece (12) is provided with a thorn (11). The end of the thorn (11) is placed in the through groove (13).

3. A novel claw connector according to claim 2, characterized in that, The claw (8) and the female head (3) are provided with a trapezoidal support arm (5), the locking buckle (7) is provided with an inclined pressing rod (6), the pressing rod (6) protrudes from the support arm (5), and a pressing gap (15) is provided between the pressing rod (6) and the support arm (5).

4. A novel claw connector according to claim 3, characterized in that, The support arm (5) has a through hole (16) for mounting the limiting block (14), and the connecting piece (12) and one end of the limiting block (14) are placed in the through hole (16).