Plastic part embedded type embossed nut

Abstract

The utility model relates to the technical field of nuts, and discloses a plastic part embedded type embossed nut which comprises a nut body, a first fixing ring, a second fixing ring and a third fixing ring are sequentially arranged on the circumferential surface of the nut body from bottom to top, and rhombic grooves are formed in the circumferential surfaces of the first fixing ring and the third fixing ring. A corrugated groove is formed in the circumferential surface of the upper end of the second fixing ring, and a sawtooth-shaped groove is formed in the circumferential surface of the lower end of the second fixing ring. Rhombic grooves, corrugated grooves and sawtooth-shaped grooves in the surfaces of the first fixing ring, the second fixing ring and the third fixing ring are tightly embedded into the inner wall of the plastic part, the rhombic grooves can provide more pattern surface areas, the contact area with the plastic part is increased, and therefore the fixing force is increased, and the service life of the plastic part is prolonged. Friction force between the nut and a plastic part is increased through the corrugated grooves and the sawtooth-shaped grooves, so that the nut body cannot move in the axial direction and the transverse direction, installation is firm, and falling is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, and particularly relates to an embedded embossed nut for plastic parts. Background Technique

[0002] When embedding this kind of embedded embossed nut in a plastic part, corresponding grooves or holes are usually left in the design of the plastic part so that the nut can be completely embedded therein and provide firm fixation. The embedded embossed nut is usually used in occasions where anti-loosening, increased fastening force and stability are required. During installation, the nut is usually placed in a reserved hole and then locked to the workpiece by tightening the thread. The flange structure will compact against the surface of the workpiece when the nut is stressed, increasing the friction and preventing loosening. This type of nut is usually widely used in mechanical equipment, automobiles, aerospace and other fields to fix components such as bolts and screws to ensure the firmness and safety of the connection.

[0003] However, currently, after most existing embedded embossed nuts are installed in plastic parts, only the embossed grooves on the surface of the nut form friction with the plastic part, and loosening or sliding is likely to occur, and the stability is not high. For this reason, we propose an embedded embossed nut for plastic parts. Content of the Utility Model

[0004] The purpose of the utility model is to provide an embedded embossed nut for plastic parts to solve the problem that after most existing embedded embossed nuts are installed in plastic parts, only the embossed grooves on the surface of the nut form friction with the plastic part, and loosening or sliding is likely to occur, and the stability is not high as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an embedded embossed nut for plastic parts, including a nut body, one end of the nut body is fixedly connected with a flange plate, and the circumferential surface of the nut body is successively provided with a first fixing ring, a second fixing ring and a third fixing ring from bottom to top. The circumferential surfaces of the first fixing ring and the third fixing ring are both provided with diamond-shaped grooves, the upper circumferential surface of the second fixing ring is provided with a corrugated groove, and the lower circumferential surface of the second fixing ring is provided with a serrated groove.

[0006] As a preferred solution, a threaded hole is opened inside the nut body.

[0007] As a preferred solution, the first fixing ring, the second fixing ring and the third fixing ring are all fixedly connected to the circumferential surface of the nut body. A second barbed sharp corner is fixedly installed on the circumferential surface of the nut body and between the first fixing ring and the second fixing ring, and a first barbed sharp corner is fixedly installed on the circumferential surface of the nut body and between the second fixing ring and the third fixing ring.

[0008] As a preferred solution, the outer diameters of the first fixing ring, the second fixing ring and the third fixing ring are the same.

[0009] As a preferred solution, a full-thread claw is fixedly connected to the surface of the flange plate on the side close to the nut body. A plurality of full-thread claws are provided and are distributed in a circumferential array.

[0010] As a preferred solution, a sealing layer and an anti-slip layer are fixedly installed on the surface of the flange plate, and the anti-slip layer is arranged on the surface of the sealing layer.

[0011] The technical effects and advantages of the present utility model:

[0012] 1. After the nut body is buried inside the plastic part, the diamond-shaped grooves, corrugated grooves and serrated grooves on the surfaces of the first fixing ring, the second fixing ring and the third fixing ring are closely fitted with the inner wall of the plastic part. The diamond-shaped grooves can provide more pattern surface areas, increasing the contact area with the plastic part, thereby increasing the fixing force. The corrugated grooves and serrated grooves increase the friction between the nut and the plastic part, making the connection more firm, so that the nut body will not move axially and laterally, and the installation is firm and not easy to fall off;

[0013] 2. By providing the first barbed sharp corner, the second barbed sharp corner and the full-thread claws, after the nut body is buried inside the plastic part, the nut body has strong anti-torsion performance. By installing a sealing layer and an anti-slip layer on the surface of the flange plate, the sealing layer can be sealed with gaskets, O-ring seals, etc., and the anti-slip layer can increase the friction force by using bottom pads, coating methods. Description of the drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a three-dimensional structural schematic diagram of the nut body part of the present utility model;

[0016] Figure 3 is a sectional structural schematic diagram inside the nut body of the present utility model;

[0017] Figure 4 is a structural schematic diagram of the second fixing ring of the present utility model;

[0018] Figure 5 is a structural schematic diagram of the third fixing ring of the present utility model;

[0019] Figure 6 is a structural schematic diagram inside the flange plate of the present utility model.

[0020] In the figure: 1. Nut body; 2. First fixing ring; 3. Flange; 4. Third fixing ring; 5. Second fixing ring; 6. Full tooth claw; 7. First barbed sharp corner; 8. Corrugated groove; 9. Serrated groove; 10. Rhombic groove; 11. Threaded hole; 12. Second barbed sharp corner; 31. Sealing layer; 32. Anti-slip layer. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0022] Please refer to the attached Figure 1 - attached Figure 6 , a plastic part embedded embossed nut, a plastic part embedded embossed nut, including a nut body 1, one end of the nut body 1 is fixedly connected with a flange 3, the circumferential surface of the nut body 1 is successively provided with a first fixing ring 2, a second fixing ring 5 and a third fixing ring 4 from bottom to top, the circumferential surfaces of the first fixing ring 2 and the third fixing ring 4 are both provided with rhombic grooves 10, the upper circumferential surface of the second fixing ring 5 is provided with a corrugated groove 8, the lower circumferential surface of the second fixing ring 5 is provided with a serrated groove 9, a threaded hole 11 is opened inside the nut body 1, the first fixing ring 2, the second fixing ring 5 and the third fixing ring 4 are all fixedly connected to the circumferential surface of the nut body 1, and the outer diameters of the first fixing ring 2, the second fixing ring 5 and the third fixing ring 4 are the same.

[0023] The second fixing ring 5 is located in the middle position, and the height of the second fixing ring 5 is higher than that of the first fixing ring 2 and the third fixing ring 4, so that the central axis position of the nut body 1 has a strong friction force with the plastic part, improving stability. The rhombic grooves 10 on the circumferential surfaces of the first fixing ring 2 and the third fixing ring 4 are arranged in opposite directions.

[0024] Specifically, after the nut body 1 is buried into the plastic part, the rhombic grooves 10, the corrugated grooves 8 and the serrated grooves 9 on the surfaces of the first fixing ring 2, the second fixing ring 4 and the third fixing ring 5 are tightly fitted with the inner wall of the plastic part. The rhombic grooves 10 can provide more pattern surface areas, increasing the contact area with the plastic part, thereby increasing the fixing force. The corrugated grooves 8 and the serrated grooves 9 increase the friction force between the nut and the plastic part, making the connection more firm, so that the nut body 1 will not move axially and laterally, and the installation is firm and not easy to fall off. Embodiment 2

[0025] Please refer to the attachedFigure 1 - Attached Figure 6 Furthermore, on the basis of Embodiment 1, it is further obtained that a second barbed sharp corner 12 is fixedly installed on the circumferential surface of the nut body 1 and between the first fixing ring 2 and the second fixing ring 5, and a first barbed sharp corner 7 is fixedly installed on the circumferential surface of the nut body 1 and between the second fixing ring 5 and the third fixing ring 4. A full-tooth claw 6 is fixedly connected to the surface of the flange 3 close to the nut body 1. A plurality of full-tooth claws 6 are provided and are distributed in a circumferential array. A sealing layer 31 and an anti-slip layer 32 are fixedly installed on the surface of the flange 3, and the anti-slip layer 32 is arranged on the surface of the sealing layer 31.

[0026] The function of the sealing layer 31 is to prevent liquid or gas from leaking through the gap between the nuts. In occasions where sealing performance is required, the sealing layer is necessary. Sealing gaskets, O-rings and other sealing parts can be used for sealing. The anti-slip layer 32 is usually used to prevent the nuts from loosening or sliding, increase the friction between the nuts and the plastic parts, and ensure the stability and safety of the connection. When the nut body 1 is installed inside the plastic part, the full-tooth claw 6 is inserted inside the plastic part to increase the snap-fit connection relationship, making the installation more firm and not easy to loosen. The full-tooth claw 6 is arranged in an arc shape, and one end of the full-pressure claw 6 is arranged in a sharp corner, which is convenient for the full-tooth claw 6 to be inserted into the plastic part.

[0027] Specifically, by setting the first barbed sharp corner 7, the second barbed sharp corner 12 and the full-tooth claw 6, after the nut body 1 is buried inside the plastic part, the nut body 1 has strong anti-torsion performance. By installing the sealing layer 31 and the anti-slip layer 32 on the surface of the flange 3, the sealing layer 31 can use gaskets, O-ring seals for sealing, and the anti-slip layer 32 can use backing pads, coating methods to increase friction.

[0028] The working principle of this utility model: This utility model is an embossed nut embedded in a plastic part. First, the nut body 1 is buried inside the plastic part. The diamond-shaped grooves 10, corrugated grooves 8 and serrated grooves 9 on the surfaces of the first fixing ring 2, the second fixing ring 4 and the third fixing ring 5 are tightly fitted with the inner wall of the plastic part. The diamond-shaped grooves 10 can provide more pattern surface area, increase the contact area with the plastic part, and thus increase the fixing force. The corrugated grooves 8 and the serrated grooves 9 increase the friction between the nut and the plastic part, making the connection more firm, so that the nut body 1 will not move axially and laterally, and the installation is firm and not easy to fall off. By setting the first barbed sharp corner 7, the second barbed sharp corner 12 and the full-tooth claw 6, after the nut body 1 is buried inside the plastic part, the nut body 1 has strong anti-torsion performance. By installing the sealing layer 31 and the anti-slip layer 32 on the surface of the flange 3, the sealing layer 31 can use gaskets, O-ring seals for sealing, and the anti-slip layer 32 can use backing pads, coating methods to increase friction.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An inlaid embossed nut for plastic parts, comprising a nut body (1), characterized in that: One end of the nut body (1) is fixedly connected with a flange (3). On the circumferential surface of the nut body (1), a first fixing ring (2), a second fixing ring (5) and a third fixing ring (4) are successively arranged from bottom to top. Diamond-shaped grooves (10) are formed on the circumferential surfaces of the first fixing ring (2) and the third fixing ring (4). A corrugated groove (8) is formed on the upper circumferential surface of the second fixing ring (5), and a serrated groove (9) is formed on the lower circumferential surface of the second fixing ring (5).

2. The embossed nut embedded in a plastic part according to claim 1, characterized in that: A threaded hole (11) is formed inside the nut body (1).

3. The embossed nut embedded in a plastic part according to claim 1, characterized in that: The first fixing ring (2), the second fixing ring (5) and the third fixing ring (4) are all fixedly connected to the circumferential surface of the nut body (1). A second barbed sharp corner (12) is fixedly installed on the circumferential surface of the nut body (1) and between the first fixing ring (2) and the second fixing ring (5). A first barbed sharp corner (7) is fixedly installed on the circumferential surface of the nut body (1) and between the second fixing ring (5) and the third fixing ring (4).

4. A plastic part embedded embossed nut according to claim 1, characterized in that: The outer diameters of the first fixing ring (2), the second fixing ring (5) and the third fixing ring (4) are the same.

5. A plastic part embedded embossed nut according to claim 1, characterized in that: On the surface of the flange (3) close to the nut body (1), a full-thread claw (6) is fixedly connected. There are multiple full-thread claws (6) and they are distributed in a circumferential array.

6. The embossed nut embedded in a plastic part according to claim 1, wherein: A sealing layer (31) and an anti-slip layer (32) are fixedly installed on the surface of the flange (3). The anti-slip layer (32) is arranged on the surface of the sealing layer (31).

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