C-shaped buckle

Abstract

The utility model relates to the technical field of C-shaped buckles, and provides a C-shaped buckle which comprises a main body, a nail cap located at the top of the main body and integrally formed with the main body, and a plurality of pairs of inverted buckles fixed to the outer side of the main body. An upper fixing groove and a lower fixing groove which are communicated are formed in the upper portion and the lower portion in the body respectively, internal threads are formed in the inner wall of the upper fixing groove, external threads matched with the internal threads are formed in the outer side of the embedded column, the lower end of the embedded column is in interference fit with the lower fixing groove, a head is integrally formed at the top of the embedded column, and a cross groove is formed in the head. The utility model has the beneficial effects that when the main body is disassembled, a force applying part is arranged, so that a worker can conveniently disassemble the main body from the mounting hole; when the embedded column completely enters the lower fixing groove, the main body is opened, the inverted buckle is more tightly attached to the installation hole, and therefore the main body is installed in the installation hole more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of C-shaped buckles, and particularly relates to a C-shaped buckle. Background Art

[0002] There are a large number of fasteners on cars, most of which are used for interior and exterior trim and battery packs. C-shaped clips are common fasteners in cars. They are commonly used to connect interior and exterior plastic parts such as door trims, AB column trims, carpet moldings, and body sheet metals. They mainly play a fastening role. Their materials are usually polypropylene plastic, polyethylene plastic, amide plastic, etc. They rely on the elasticity of the undercuts themselves to get stuck in the installation holes to achieve a fastening effect.

[0003] After the existing C-shaped buckle is installed, it is very difficult to disassemble because the surface is relatively smooth and there is no place to apply force. Therefore, a C-shaped buckle is urgently needed to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned technical problems existing in the prior art, a C-shaped clip is provided, which has a force-applying part when the main body is disassembled, so that the staff can remove the main body from the mounting hole conveniently; when the embedded column completely enters the lower fixing groove, the main body will be propped open, so that the undercut is closer to the mounting hole, thereby making the main body more firmly installed in the mounting hole.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means:

[0006] A C-shaped buckle comprises a main body, a nail cap located on the top of the main body and formed integrally therewith, and a plurality of pairs of undercuts fixed on the outside of the main body;

[0007] An upper fixing groove and a lower fixing groove are respectively provided at the upper and lower parts of the main body, an inner wall of the upper fixing groove is provided with an internal thread, an embedded column is provided between the fixing groove and the lower fixing groove, an outer side of the embedded column is provided with an external thread matching the internal thread, and the lower end of the embedded column is interference fit with the lower fixing groove, a head is integrally formed on the top of the embedded column, and a cross groove is provided on the head.

[0008] Furthermore, a chamfer is provided between the upper fixing groove and the lower fixing groove.

[0009] Furthermore, a tapered portion is provided at the bottom of the embedded column.

[0010] Furthermore, the diameter of the lower fixing groove is smaller than the diameter of the upper fixing groove, and the length of the lower fixing groove is smaller than the length of the upper fixing groove.

[0011] Furthermore, a circular groove communicating with the upper fixing groove is formed on the top of the nail cap.

[0012] Furthermore, a pair of limit blocks are integrally formed on the outer side of the main body, and a contraction portion is provided at the bottom of the main body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This C-shaped clip is formed by providing an internal thread on the inner wall of the upper fixing groove and an external thread on the outer side of the embedded column. When the main body is removed from the mounting hole, the embedded column is rotated upward so that the upper end of the embedded column protrudes from the top of the main body, so that there is a part to apply force when the main body is removed. The embedded column is then pulled upward, and the staff can remove the main body from the mounting hole. Since the lower end of the embedded column has an interference fit with the lower fixing groove, when the embedded column fully enters the lower fixing groove, it will open the main body, so that the undercut is closer to the mounting hole, thereby making the main body more securely installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 1 Exploded diagram of

[0018] Figure 4 It is a three-dimensional cross-sectional view of the main body of the utility model;

[0019] Figure 5 It is a front view cross-sectional view of the main body of the utility model.

[0020] Markings in the figure: 1. Main body; 2. Nail cap; 3. Undercut; 4. Limit block; 5. Contraction part; 6. Head; 7. Cross groove; 8. Embedded column; 9. Lower fixing groove; 10. Conical part; 11. External thread; 12. Circular groove; 13. Upper fixing groove; 14. Internal thread; 15. Chamfer. DETAILED DESCRIPTION

[0021] See also Figure 1-5 , the embodiments of the utility model are further described;

[0022] A C-shaped buckle comprises a main body 1, a nail cap 2 located on the top of the main body 1 and formed integrally therewith, and a plurality of pairs of undercuts 3 fixed to the outside of the main body 1. The main body 1 matches the mounting hole of the car. After the main body 1 is inserted into the mounting hole, the undercuts 3 are closely attached to the inner wall of the mounting hole to achieve a fixing effect.

[0023] The upper and lower parts of the main body 1 are respectively provided with an upper fixing groove 13 and a lower fixing groove 9, and the inner wall of the upper fixing groove 13 is provided with an internal thread 14. An embedded column 8 is provided between the fixing groove 13 and the lower fixing groove 9. The outer side of the embedded column 8 is provided with an external thread 11 that matches the internal thread 14. The embedded column 8 and the upper fixing groove 13 are connected in a detachable manner (threaded connection). First, it is convenient to install and position the embedded column 8 in the upper fixing groove 13. Second, when the main body 1 is removed from the mounting hole, the embedded column 8 is rotated upward to make the upper end of the embedded column 8 The protrusion on the top of the main body 1 provides a part to apply force when the main body 1 is disassembled. By pulling the embedded column 8 upward, the staff can remove the main body 1 from the installation hole. Since the lower end of the embedded column 8 is interference fit with the lower fixing groove 9, when the embedded column 8 completely enters the lower fixing groove 9, the main body 1 will be opened, so that the undercut 3 is closer to the installation hole, thereby making the main body 1 more firmly installed. A head 6 is integrally formed on the top of the embedded column 8, and a cross groove 7 is provided on the head. The setting of the cross groove 7 makes it convenient for the staff to use a screwdriver to rotate the embedded column 8.

[0024] Preferably, a chamfer 15 is provided between the upper fixing groove 13 and the lower fixing groove 9 , and the chamfer 15 is used to guide the embedded column 8 so that the embedded column 8 is easier to insert into the lower fixing groove 9 .

[0025] Preferably, a tapered portion 10 is provided at the bottom of the embedded column 8, and the tapered portion 10 makes it easier for the embedded column 8 to be aligned with the lower fixing groove 9 and inserted.

[0026] Preferably, the diameter of the lower fixing groove 9 is smaller than the diameter of the upper fixing groove 13, and the length of the lower fixing groove 9 is smaller than the length of the upper fixing groove 13. When the embedded column 8 is completely separated from the lower fixing groove 9, the external thread 11 on the upper part of the embedded column 8 is still located in the internal thread 14. Therefore, when the embedded column 8 is removed from the main body 1, there is no need to pull out the embedded column 8.

[0027] Preferably, a circular groove 12 communicating with the upper fixing groove 13 is formed on the top of the nail cap 2, and the circular groove 12 is used to accommodate the head 6, so that after the embedded column 8 is installed, the head 6 and the nail cap 2 are in the same plane, which is more beautiful.

[0028] Preferably, a pair of limit blocks 4 are integrally formed on the outer side of the main body 1, and the limit blocks 4 match the mounting holes so that the main body 1 is limited in the mounting holes, and a contraction portion 5 is provided at the bottom of the main body 1 to facilitate the insertion of the main body 1 into the mounting hole.

[0029] Specifically, when in use, take the main body 1 and insert it into the mounting hole, and the undercut 3 is close to the inner wall of the mounting hole to achieve a fixing effect. After the main body 1 is installed in place, take the embedded column 8 and insert it into the upper fixing groove 13, use a screwdriver to rotate the head 6, and with the cooperation of the external thread 11 and the internal thread 14, the embedded column 8 moves downward, and the embedded column 8 enters the lower fixing groove 9, which stretches the main body 1 and makes the undercut 3 closer to the inner wall of the mounting hole, thereby improving the fixing effect. If the main body 1 needs to be disassembled, rotate the embedded column 8 to make the embedded column 8 move upward until the embedded column 8 is completely separated from the lower fixing groove 9, and the external thread 11 is not completely separated from the internal thread 14. Then, the embedded column 8 can be pulled out to facilitate disassembly.

Claims

1. A C-shaped buckle, comprising a main body (1), a nail cap (2) located on the top of the main body (1) and integrally formed therewith, and a plurality of pairs of undercuts (3) fixed on the outside of the main body (1), characterized in that: The main body (1) is provided with an upper fixing groove (13) and a lower fixing groove (9) which are connected to each other at the upper and lower parts thereof, and an inner wall of the upper fixing groove (13) is provided with an internal thread (14). An embedded column (8) is provided between the upper fixing groove (13) and the lower fixing groove (9), and an outer side of the embedded column (8) is provided with an external thread (11) which matches the internal thread (14), and the lower end of the embedded column (8) is interference-fitted with the lower fixing groove (9), and a head (6) is integrally formed at the top of the embedded column (8), and a cross groove (7) is provided on the head.

2. A C-shaped buckle according to claim 1, characterized in that: A chamfer (15) is provided between the upper fixing groove (13) and the lower fixing groove (9).

3. A C-shaped buckle according to claim 1, characterized in that: The bottom of the embedded column (8) is provided with a tapered portion (10).

4. The C-shaped buckle according to claim 1, characterized in that: The diameter of the lower fixing groove (9) is smaller than the diameter of the upper fixing groove (13), and the length of the lower fixing groove (9) is smaller than the length of the upper fixing groove (13).

5. The C-shaped buckle according to claim 1, characterized in that: The top of the nail cap (2) is provided with a circular groove (12) which is in communication with the upper fixing groove (13).

6. The C-shaped buckle according to claim 1, characterized in that: A pair of limit blocks (4) are integrally formed on the outer side of the main body (1), and a contraction portion (5) is provided at the bottom of the main body (1).

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