Headless riveting nut

Abstract

The utility model relates to the technical field of headless riveting nuts, in particular to a headless riveting nut, which comprises an upper nut body and a riveting part, the riveting part is mounted on the outer wall of the upper nut body, a dismounting mechanism is connected to the inner wall of the upper nut body, and a mounting mechanism is connected to the lower end of the upper nut body. A tooth groove is formed in the outer wall of the riveting part, and a mounting groove is formed in the inner wall of the upper nut body. According to the size and model of a screw, a plurality of square strips on an inner cylinder can be aligned to the position of a mounting groove in an upper nut body, a first fixing screw penetrates through the upper nut body and the inner cylinder, so that the inner cylinder is completely mounted in the upper nut body, and a second screw is screwed to penetrate through a connecting ring, a lower nut body and a threaded cylinder to be fixed; the upper nut body and the lower nut body can change the sizes of the inner cylinder and the threaded cylinder in the nut body, and the nut can be matched with screws of different models for use.

Description

Technical Field

[0001] The utility model relates to the technical field of headless riveted nuts, in particular to a headless riveted nut. Background Art

[0002] Rivet nuts, also known as pull rivet nuts and pull caps, are widely used in the riveting of metal and non-metal flat and non-flat structural parts. They have important application prospects in the assembly of electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, and decoration.

[0003] For example, a headless rivet nut with the authorization announcement number "CN219570570U" solves the problem of existing headless rivet nuts and the problem that the connection strength between the two workpieces is affected and cannot meet the high-strength connection requirements between the workpieces. The above-mentioned second inner hole can expand during the movement, so that the tooth groove at the upper end of the riveted part is stretched and tightly embedded in the interior of the first workpiece hole, which has a double anti-rotation effect and can prevent the headless rivet nut from falling. Considering the existing headless rivet nuts, the size of the inner hole and the threaded hole inside the headless rivet nut is fixed, and it cannot be adapted to screws of different models, resulting in the use of multiple models. Utility Model Content

[0004] The utility model aims to solve the problem that the existing headless riveted nut cannot be matched with screws of different models, resulting in the use of multiple models, and proposes a headless riveted nut.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a headless riveted nut, comprising an upper nut body and a riveted portion, the outer wall of the upper nut body is installed with the riveted portion, the inner wall of the upper nut body is connected with a disassembly mechanism, the lower end of the upper nut body is connected with a mounting mechanism, the outer wall of the riveted portion is installed with a tooth groove, and the inner wall of the upper nut body is installed with a mounting groove.

[0006] Preferably, the disassembly mechanism includes a first fixing screw and a first square bar, the outer wall of the first fixing screw is threadedly connected to the upper nut body, the end of the first fixing screw is threadedly connected to the inner tube, the outer wall of the first square bar is slidably connected to the upper nut body, the outer wall of the inner tube is fixedly connected to the first square bar, and the inner wall of the inner tube is installed with an inner hole.

[0007] Preferably, the lower end of the upper nut body is fixedly connected to the connecting ring.

[0008] Preferably, the installation mechanism includes a lower nut body, the inner wall of the lower nut body is movably connected with a connecting ring, the inner wall of the lower nut body is threadedly connected with a second fixing screw, the outer wall of the second fixing screw is threadedly connected with a threaded cylinder, and a thread groove is installed on the inner wall of the threaded cylinder.

[0009] Preferably, the outer wall of the threaded cylinder is fixedly connected with a second square bar, and the outer wall of the second square bar is slidably connected with the lower nut body.

[0010] Preferably, the upper end of the lower nut body is fixedly connected with a boss.

[0011] A headless riveting nut proposed by the present utility model has the beneficial effect that according to the size and model of the screw, multiple square bars on the inner cylinder can be aligned with the positions of the installation grooves inside the upper nut body, the first fixing screw passes through the upper nut body and the inner cylinder, so that the inner cylinder is completely installed inside the upper nut body, and by screwing the second screw through the connection ring, the lower nut body and the threaded cylinder for fixation, the sizes of the inner cylinder and the threaded cylinder inside are changed by the upper nut body and the lower nut body, so as to achieve the adaptation and use of screws of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 the front elevation sectional structural diagram in

[0014] Figure 3 is Figure 1 the top plan sectional structural diagram in

[0015] Figure 4 is Figure 2 the enlarged structural diagram at A in

[0016] Figure 5 is Figure 2 the enlarged structural diagram at B in

[0017] Figure 6 is Figure 1 the enlarged structural diagram of the lower nut body in

[0018] In the figure: 1. Upper nut body, 2. Riveting part, 3. Disassembly mechanism, 301. First fixing screw, 302. Inner cylinder, 303. First square bar, 304. Inner hole, 4. Installation mechanism, 401. Lower nut body, 402. Second fixing screw, 403. Threaded cylinder, 404. Thread groove, 5. Tooth groove, 6. Installation groove, 7. Connection ring, 8. Second square bar, 9. Boss. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with the accompanying drawings: Embodiment 1

[0020] Please refer to Figures 1-5 : In this embodiment, a headless riveting nut includes an upper nut body 1 and a riveting portion 2. The riveting portion 2 is installed on the outer wall of the upper nut body 1. A disassembly mechanism 3 is connected to the inner wall of the upper nut body 1. An installation mechanism 4 is connected to the lower end of the upper nut body 1. Tooth grooves 5 are installed on the outer wall of the riveting portion 2, and installation grooves 6 are installed on the inner wall of the upper nut body 1.

[0021] The disassembly mechanism 3 includes a first fixing screw 301 and a first square bar 303. By controlling the first fixing screw 301 to pass through and disengage from the upper nut body 1 and the inner cylinder 302, the disassembly and installation between the upper nut body 1 and the inner cylinder 302 are realized. The outer wall of the first fixing screw 301 is threadedly connected to the upper nut body 1, the end of the first fixing screw 301 is threadedly connected to the inner cylinder 302, the outer wall of the first square bar 303 is slidably connected to the upper nut body 1, the outer wall of the inner cylinder 302 is fixedly connected to the first square bar 303, and an inner hole 304 is installed on the inner wall of the inner cylinder 302;

[0022] According to the size and model of the screw, multiple square bars 303 on the inner cylinder 302 can be aligned with the positions of the installation grooves 6 inside the upper nut body 1. The first fixing screw 301 passes through the upper nut body 1 and the inner cylinder 302, so that the inner cylinder 302 is completely installed inside the upper nut body 1, and the second screw 402 is screwed through to fix between the connecting ring 7, the lower nut body 401 and the threaded cylinder 402, realizing the change of the sizes of the inner cylinder 302 and the threaded cylinder 402 inside the upper nut body 1 and the lower nut body 401, and realizing the adaptation and use of screws of different models.

[0023] The lower end of the upper nut body 1 is fixedly connected to the connecting ring 7. The second screw 402 passes through the connecting ring 7, the lower nut body 401 and the threaded cylinder 402 to realize the installation and fixation between the lower nut body 401 and the threaded cylinder 402. The installation mechanism 4 includes a lower nut body 401. The inner wall of the lower nut body 401 is movably connected to the connecting ring 7. The inner wall of the lower nut body 401 is threadedly connected to a second fixing screw 402. The outer wall of the second fixing screw 402 is threadedly connected to the threaded cylinder 403. A thread groove 404 is installed on the inner wall of the threaded cylinder 403.

[0024] Working principle

[0025] Assembly stage

[0026] Align the multiple square strips 303 on the inner cylinder 302 with the positions of the installation grooves 6 inside the upper nut body 1, so that the inner cylinder 302 is completely installed inside the upper nut body 1. Turn the first fixing screw 301 through the upper nut body 1 and the inner cylinder 302 to fix the inner cylinder 302 and the upper nut body 1. At the same time, place the connecting ring 7 at the lower end of the upper nut body 1 inside the lower nut body 401, and insert the second square strip 8 on the threaded cylinder 402 into the lower nut body 401. Turn the second screw 402 through the connecting ring 7, the lower nut body 401 and the threaded cylinder 402 to install the upper nut body 1 and the lower nut body 401, and fix the lower nut body 401 and the threaded cylinder 402 to achieve the overall installation.

[0027] Usage stage

[0028] According to the actual usage requirements, by replacing the inner cylinder 302 and the threaded cylinder 402 on the upper nut body 1 and the lower nut body 401 according to the upper-end assembly method, the user can increase the roughness by using the tooth grooves 5 on the outer wall of the upper nut body 1 to facilitate manual rotation of the upper nut body 1, so that the external screw can penetrate into the inner cylinder 302, and the outer wall of the screw is threadedly connected with the threaded cylinder 402. Embodiment 2

[0029] Please refer to Figures 1-5 :

[0030] The outer wall of the threaded cylinder 403 is fixedly connected with the second square strip 8, the outer wall of the second square strip 8 is slidably connected with the lower nut body 401, and the upper end of the lower nut body 401 is fixedly connected with the boss 9.

[0031] Working principle:

[0032] Through the second square strip 8 on the threaded cylinder 403, it can vertically slide into the lower nut body 401, increasing the rotational resistance between the threaded cylinder 403 and the lower nut body 401, and the boss 9 on the surface of the lower nut body 401 will also increase the resistance to the external screw, making the installation of the external screw on the lower nut body 401 more stable.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A headless riveting nut, comprising an upper nut body (1) and a riveting portion (2), characterized in that: The outer wall of the upper nut body (1) is provided with a riveting portion (2), the inner wall of the upper nut body (1) is connected with a disassembly mechanism (3), the lower end of the upper nut body (1) is connected with an installation mechanism (4), the outer wall of the riveting portion (2) is provided with a tooth groove (5), and the inner wall of the upper nut body (1) is provided with an installation groove (6).

2. The blind riveting nut according to claim 1, characterized in that: The disassembly mechanism (3) includes a first fixing screw (301) and a first square bar (303). The outer wall of the first fixing screw (301) is threadedly connected with the upper nut body (1), the end of the first fixing screw (301) is threadedly connected with an inner cylinder (302), the outer wall of the first square bar (303) is slidably connected with the upper nut body (1), the outer wall of the inner cylinder (302) is fixedly connected with the first square bar (303), and the inner wall of the inner cylinder (302) is provided with an inner hole (304).

3. A headless riveting nut according to claim 1, characterized in that: The lower end of the upper nut body (1) is fixedly connected with a connecting ring (7).

4. The blind riveting nut according to claim 3, wherein: The installation mechanism (4) includes a lower nut body (401). The inner wall of the lower nut body (401) is movably connected with the connecting ring (7), the inner wall of the lower nut body (401) is threadedly connected with a second fixing screw (402), the outer wall of the second fixing screw (402) is threadedly connected with a threaded cylinder (403), and the inner wall of the threaded cylinder (403) is provided with a thread groove (404).

5. The blind riveting nut according to claim 4, characterized in that: The outer wall of the threaded cylinder (403) is fixedly connected with a second square bar (8), and the outer wall of the second square bar (8) is slidably connected with the lower nut body (401).

6. The blind riveting nut according to claim 5, wherein: The upper end of the lower nut body (401) is fixedly connected with a boss (9).

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