Anti-loose rivet nut

Abstract

The utility model relates to the technical field of rivet nuts, and discloses an anti-loose rivet nut which comprises a nut body, the bottom of the nut body is in a circular ring shape, a through opening is formed in the outer wall of the top of the nut body, a friction assembly is installed at the bottom of the nut body, a second sliding rod is installed in the through opening, and one end of the second sliding rod is fixedly connected with a friction block. The friction block is located on the inner wall of the nut. Through the arrangement of the friction assembly, when the nut is installed, the nut extrudes the ring body and the helical teeth so as to push the sliding rod to move, when the sliding rod moves upwards, the inclined surface of the top end of the wedge block pushes the second sliding rod, and therefore the two friction blocks clamp the outer wall of a screw; and when the nut is about to be loosened, the nut rotates anticlockwise, at the moment, the helical teeth and the nut are opposite in rotation direction, so that friction force is generated, and loosening of the nut is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet nut equipment, in particular to an anti-loosening rivet nut. Background Art

[0002] Rivet nuts are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration. They are developed to solve the shortcomings of easy melting of welding nuts on metal sheets and thin tubes and easy slipping of threads when tapping internal threads. They do not require tapping internal threads or welding nuts, have strong riveting efficiency, and are easy to use.

[0003] The application number is 202223004470.4, which discloses a rivet nut, including a nut shell, a fixed connection block and a driving block. The outer surface of the fixed connection block is provided with a limited slot, and a limited block is arranged inside the limited slot. A telescopic spring is connected between the side of the bottom of the limited block and the side inside the limited slot. The rivet nut is provided with a movable splint, which can be adjusted in position inside the nut shell under the rotation of the threaded rod, so that the spacing between the movable splints can be adjusted, so that the device can be connected and fixed with operating rods of different sizes; a fixed connection block is provided, and the movable extension plate on the bottom of the fixed connection block can be displaced along the sliding slot under the drive of the driving wheel, and the position of the movable extension plate can be fixed under the action of the limit block, so that the nut shell can be connected and fixed with hole structures of different sizes.

[0004] Although such a configuration is provided with a fixed connection block, the movable extension plate on the bottom surface of the fixed connection block can be displaced along the sliding groove under the drive of the driving wheel, and the position of the movable extension plate can be fixed under the action of the limit block, so that the nut shell can be connected and fixed with hole structures of different sizes, but after the nut and the screw are threadedly connected, considering the vibration generated during the operation of the equipment, the nut and the screw may become loose;

[0005] Therefore, it is necessary to set up a corresponding anti-loosening structure. Utility Model Content

[0006] The utility model aims to provide an anti-loosening rivet nut to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses an anti-loosening rivet nut, comprising a nut, the bottom of the nut is in a circular ring shape, and a through opening is opened on the top outer wall of the nut;

[0009] A friction assembly is installed at the bottom of the nut, and a second sliding rod is installed inside the through opening. One end of the second sliding rod is fixedly connected to a friction block, and the friction block is located on the inner wall of the nut. The purpose of this arrangement is to apply friction force to the outer wall of the screw through the friction block to prevent loosening between the nut and the screw.

[0010] Furthermore, the friction assembly includes a ring body, helical teeth and a sliding rod, and the sliding rod passes through the bottom ring of the nut, which is the main structure of the friction assembly.

[0011] Furthermore, the sliding rod is slidably connected to the bottom circular ring of the nut. The purpose of such arrangement is that when the nut is installed, the nut presses the ring body and the bevel teeth, thereby pushing the sliding rod to move.

[0012] Furthermore, the ring body is installed at the bottom of the sliding rod, and several of the bevel teeth are installed on the lower surface of the ring body, and several of the bevel teeth are inclined in a clockwise rotation direction. The purpose of this arrangement is that when the nut is about to loosen, the nut rotates counterclockwise. At this time, the bevel teeth rotate in opposite directions to the nut, thereby generating friction and reducing the loosening of the nut.

[0013] Furthermore, a wedge is fixedly connected to the top end of the sliding rod, and the wedge is inclined toward one side of the outer wall of the nut.

[0014] Furthermore, the second sliding rod is slidably connected to the inner wall of the through opening, and the end of the second sliding rod close to the wedge block fits with the wedge block. The purpose of this arrangement is that when the sliding rod moves upward, the top inclined surface of the wedge block pushes the second sliding rod, so that the two friction blocks clamp the outer wall of the screw, thereby reducing the looseness between the screw and the nut.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model provides a friction assembly. When the nut is installed, the nut squeezes the ring body and the bevel teeth, thereby pushing the sliding rod to move. When the sliding rod moves upward, the top bevel of the wedge block pushes the second sliding rod, so that the two friction blocks clamp the outer wall of the screw, thereby reducing the looseness between the screw and the nut. When the nut is about to loosen, the nut rotates counterclockwise. At this time, the bevel teeth rotate in the opposite direction to the nut, thereby generating friction and reducing the loosening of the nut.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the second sliding rod of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the friction component of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] In the figure: 1, nut; 101, through port; 2, friction assembly; 201, ring body; 202, oblique teeth; 203, sliding rod; 204, wedge block; 3, second sliding rod; 4, friction block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 - Figure 4 As shown, the utility model is an anti-loosening pull rivet nut, comprising a nut 1, the bottom of the nut 1 is in a circular ring shape, and a through hole 101 is opened on the top outer wall of the nut 1;

[0027] A friction assembly 2 is installed at the bottom of the nut 1, and a second sliding rod 3 is installed inside the through opening 101. One end of the second sliding rod 3 is fixedly connected to a friction block 4, and the friction block 4 is located on the inner wall of the nut 1. The purpose of this arrangement is to apply friction force to the outer wall of the screw through the friction block 4 to prevent the nut and the screw from loosening.

[0028] The friction assembly 2 comprises a ring body 201 , helical teeth 202 and a sliding rod 203 . The sliding rod 203 penetrates the bottom ring of the nut 1 and is the main structure of the friction assembly 2 .

[0029] The sliding rod 203 is slidably connected to the bottom ring of the nut 1. The purpose of this arrangement is that when the nut 1 is installed, the nut 1 presses the ring body 201 and the bevel teeth 202, thereby pushing the sliding rod 203 to move.

[0030] The ring body 201 is installed at the bottom of the sliding rod 203, and a plurality of bevel teeth 202 are installed on the lower surface of the ring body 201. The plurality of bevel teeth 202 are inclined in a clockwise rotation direction. The purpose of such a setting is that when the nut 1 is about to loosen, the nut 1 rotates counterclockwise. At this time, the bevel teeth 202 rotate in the opposite direction to the nut 1, thereby generating friction and reducing the loosening of the nut 1.

[0031] A wedge block 204 is fixedly connected to the top end of the sliding rod 203 , and the wedge block 204 is inclined toward the outer wall of the nut 1 .

[0032] The second sliding rod 3 is slidably connected to the inner wall of the through opening 101, and one end of the second sliding rod 3 close to the wedge block 204 fits with the wedge block 204. The purpose of this arrangement is that when the sliding rod 203 moves upward, the top inclined surface of the wedge block 204 pushes the second sliding rod 3, so that the two friction blocks 4 clamp the outer wall of the screw, thereby reducing the looseness between the screw and the nut.

[0033] During use, when the nut 1 is installed, the nut 1 squeezes the ring body 201 and the bevel teeth 202, thereby pushing the sliding rod 203 to move. When the sliding rod 203 moves upward, the top bevel of the wedge block 204 pushes the second sliding rod 3, so that the two friction blocks 4 clamp the outer wall of the screw, thereby reducing the looseness between the screw and the nut 1. When the nut 1 is about to loosen, the nut 1 rotates counterclockwise. At this time, the bevel teeth 202 rotate in the opposite direction to the nut 1, thereby generating friction and reducing the loosening of the nut 1.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-loosening rivet nut, characterized in that: include: A nut (1), wherein the bottom of the nut (1) is in the shape of a circular ring, and a through opening (101) is formed on the top outer wall of the nut (1); A friction assembly (2) is installed at the bottom of the nut (1), a second sliding rod (3) is installed inside the through opening (101), one end of the second sliding rod (3) is fixedly connected to a friction block (4), and the friction block (4) is located on the inner wall of the nut (1).

2. The anti-loosening rivet nut according to claim 1, characterized in that: The friction assembly (2) comprises a ring body (201), helical teeth (202) and a sliding rod (203); the sliding rod (203) passes through the bottom ring of the nut (1).

3. The anti-loosening rivet nut according to claim 2, characterized in that: The sliding rod (203) is slidably connected to the bottom ring of the nut (1).

4. The anti-loosening rivet nut according to claim 3, characterized in that: The ring body (201) is mounted on the bottom of the sliding rod (203), and a plurality of the oblique teeth (202) are mounted on the lower surface of the ring body (201), and the plurality of the oblique teeth (202) are inclined in a clockwise rotation direction.

5. The anti-loosening rivet nut according to claim 4, characterized in that: A wedge block (204) is fixedly connected to the top end of the sliding rod (203), and the wedge block (204) is inclined toward one side of the outer wall of the nut (1).

6. The anti-loosening rivet nut according to claim 5, characterized in that: The second sliding rod (3) is slidably connected to the inner wall of the through opening (101), and one end of the second sliding rod (3) close to the wedge block (204) fits with the wedge block (204).

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