Anti-loosening rivet nut

Abstract

The utility model discloses an anti-loosing rivet nut, which relates to the technical field of nuts and comprises a rivet assembly, the surface of the rivet assembly is sleeved with an anti-loosing assembly, the anti-loosing assembly comprises a sleeving piece, the bottom of the sleeving piece is fixedly connected with an elastic gasket, the top of the sleeving piece is fixedly connected with an assembling convex block, and the assembling convex block is fixedly connected with the rivet assembly. The rivet pulling assembly comprises a rivet pulling sleeve, and the upper end of the rivet pulling sleeve is fixedly connected with a limiting piece making contact with a metal plate. Through the arrangement of the anti-loosening assembly, when the pull rivet nut is used, after the pull rivet nut is deformed due to vibration, impact and the like, pressure can be applied to a gap generated by the deformation of the pull rivet nut through the elastic force of the elastic gasket, so that the pull rivet nut is prevented from loosening; the strength of the deformation part of the pull riveting sleeve during pull riveting can be enhanced, meanwhile, the friction force between the pull riveting sleeve and a metal plate can be increased, the pull riveting nut is prevented from rotating in the metal plate, and the pull riveting nut is more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field, concretely relates to a kind of anti-loose rivet nut. BACKGROUND

[0002] Rivet nut is a kind of fastener for thin plate or sheet metal, when bolt is rotated into the thread hole of rivet nut, the axial force of bolt can increase the clamping force between rivet nut and plate, so as to realize fastening connection, has multiple advantages, compared with traditional welding nut, rivet nut does not need to carry out welding operation, avoids the problems such as heat deformation caused by welding, unstable welding quality, etc., while also reducing the pollution to environment, the installation process of rivet nut is simple and fast, only needs to use rivet tool to complete, without complex equipment and professional technical personnel.

[0003] For example, the announcement number CN221665082U Chinese patent discloses a kind of anti-loose rivet nut, including nut cap, nut sleeve rod, first anti-slip tooth, second anti-slip tooth, the nut sleeve rod is set to the bottom of nut cap, the first anti-slip tooth is set to the side of nut sleeve rod, the second anti-slip tooth is set to the bottom of nut cap.This anti-loose rivet nut by being provided with nut cap, nut sleeve rod, first anti-slip tooth, second anti-slip tooth, can be under the action of upward pulling force, nut sleeve rod collapses deformation cooperates nut cap and clamps the piece to be assembled, first anti-slip tooth and second anti-slip tooth are used to reinforce the clamping fixation to the piece to be assembled, prevent the piece to be assembled from loosening, by being provided with sealing ring and rubber sleeve, can play the role of waterproof and reduce the friction between piece to be assembled and nut cap and nut sleeve rod due to vibration, prolong the service life of rivet nut and further prevent the piece to be assembled from loosening.

[0004] However, in actual use, due to the influence of vibration, impact and other factors, the traditional rivet nut is prone to additional deformation, thereby increasing the gap between the rivet nut and the sheet metal part, causing loosening phenomenon, affecting the reliability and safety of the connection, therefore, a kind of anti-loose rivet nut is needed to solve this problem. SUMMARY

[0005] The utility model provides a kind of anti-loose rivet nut to solve the problems raised in the above background.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0007] A kind of anti-loose rivet nut, including rivet assembly, the surface of rivet assembly is sleeved with anti-loose assembly, the anti-loose assembly includes sleeve piece, the bottom of sleeve piece is fixedly connected with elastic gasket, and the top of sleeve piece is fixedly connected with assembly protruding block.

[0008] The further improvement in the technical scheme of the utility model lies in that the pull-rivet assembly comprises a pull-rivet sleeve, and the upper end of the pull-rivet sleeve is fixedly connected with a limiting sheet in contact with the sheet metal.

[0009] The further improvement in the technical scheme of the utility model lies in that the top of the limiting sheet is fixedly connected with an anti-skid tooth in contact with the surface of the bolt, and the surface of the pull-rivet sleeve is fixedly connected with a dual-purpose convex strip.

[0010] The further improvement in the technical scheme of the utility model lies in that the lower end of the inner wall of the pull-rivet sleeve is provided with a pull-rivet part connected with the bolt, the lower surface of the limiting sheet is provided with an assembling groove, and the inner wall of the assembling groove is engaged with the surface of the assembling convex block.

[0011] Thanks to the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0012] The utility model provides a pull-rivet nut of anti-loosening, through the setting of anti-loosening assembly, when using the pull-rivet nut, the pull-rivet nut can be deformed due to vibration, impact and other reasons, and the elastic force of the elastic gasket can be used to exert pressure on the gap caused by the deformation of the pull-rivet nut, so as to avoid loosening of the pull-rivet nut, and the setting of the dual-purpose convex strip can enhance the strength of the deformed part of the pull-rivet sleeve during pull-riveting, increase the friction between the pull-rivet sleeve and the sheet metal, avoid rotation of the pull-rivet nut in the sheet metal part, and make the pull-rivet nut more convenient to use. ACCURACY OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a bottom view structural schematic diagram of the utility model;

[0015] Figure 3 It is an exploded view structural schematic diagram of the utility model;

[0016] Figure 4 It is an exploded bottom view structural schematic diagram of the utility model;

[0017] Figure 5 It is a sectional view structural schematic diagram of the utility model.

[0018] In the drawing: 11, pull-rivet sleeve; 12, limiting sheet; 13, anti-skid tooth; 14, dual-purpose convex strip; 15, pull-rivet part; 16, assembling groove; 21, sleeve joint; 22, elastic gasket; 23, assembling convex block. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail in combination with the embodiments as follows: EMBODIMENT

[0020] AsFigures 1-5 The utility model provides a kind of anti-loose pull rivet nut, including pull rivet assembly, the surface of pull rivet assembly is sleeved with anti-loose assembly, and anti-loose assembly includes sleeve piece 21, the bottom of sleeve piece 21 is fixedly connected with elastic gasket 22, and the top of sleeve piece 21 is fixedly connected with assembly boss 23.

[0021] In the embodiment, by sleeving the anti-loose assembly to the surface of the pull rivet sleeve 11 and engaging the assembly boss 23 with the assembly groove 16, relative movement between the anti-loose assembly and the pull rivet sleeve 11 is avoided, then the nut is inserted into the hole in the metal plate to be fixed, then the bolt is screwed with the pull rivet part 15, and then the bolt is pulled outward by the pull rivet tool, so that the pull rivet sleeve 11 is deformed and contacts the surface of the metal plate, thereby fixing the metal plate. The provision of the dual-purpose protrusions 14 can not only enhance the strength of the deformed part of the pull rivet sleeve 11, but also tightly abut against the metal plate after deformation to prevent slipping. When the bolt pulls the pull rivet sleeve 11 to deform, the elastic gasket 22 is extruded and deformed to store energy. When the pull rivet sleeve 11 is additionally deformed due to impact or vibration, the elastic gasket 22 releases kinetic energy to keep the pull rivet nut fixed, which is more convenient to use. Embodiment

[0022] As Figures 1-5 shown, based on embodiment 1, the utility model provides a technical scheme: preferably, including pull rivet assembly, the surface of pull rivet assembly is sleeved with anti-loose assembly, and anti-loose assembly includes sleeve piece 21, the bottom of sleeve piece 21 is fixedly connected with elastic gasket 22, and the top of sleeve piece 21 is fixedly connected with assembly boss 23, and pull rivet assembly includes pull rivet sleeve 11, the upper end of pull rivet sleeve 11 is fixedly connected with limiting sheet 12 in contact with metal plate, the top of limiting sheet 12 is fixedly connected with anti-slip tooth 13 in contact with the surface of bolt, and the surface of pull rivet sleeve 11 is fixedly connected with dual-purpose protrusion 14.

[0023] In the embodiment, by sleeving the anti-loose assembly to the surface of the pull rivet sleeve 11 and engaging the assembly boss 23 with the assembly groove 16, relative movement between the anti-loose assembly and the pull rivet sleeve 11 is avoided, then the nut is inserted into the hole in the metal plate to be fixed, then the bolt is screwed with the pull rivet part 15, and then the bolt is pulled outward by the pull rivet tool, so that the pull rivet sleeve 11 is deformed and contacts the surface of the metal plate, thereby fixing the metal plate. Embodiment

[0024] As Figures 1-5As shown, on the basis of embodiment 1, the utility model provides a technical scheme: preferably, including pull rivet assembly, the surface of pull rivet assembly is connected with anti looseness subassembly, anti looseness subassembly includes sleeve piece 21, the bottom of sleeve piece 21 is fixedly connected with elastic gasket 22, the top of sleeve piece 21 is fixedly connected with assembly lugs 23, the lower end of pull rivet sleeve 11 inner wall is provided with pull rivet portion 15 connected with bolt, the lower surface of limit piece 12 is provided with assembly recess 16, the inner wall of assembly recess 16 is engaged with the surface of assembly lugs 23.

[0025] In the embodiment, by the setting of dual-purpose convex strip 14, the strength of the deformed part of pull rivet sleeve 11 can be enhanced, and the deformed part can be tightly abutted against the sheet metal part after deformation to achieve the anti-slip effect, when the bolt pulls the deformed part of pull rivet sleeve 11, the elastic gasket 22 is extruded, so that the elastic gasket 22 is deformed and is in an energy storage state, when the pull rivet sleeve 11 is additionally deformed due to impact or vibration, the elastic gasket 22 releases kinetic energy, so that the pull rivet nut remains fixed, and the pull rivet nut is more convenient to use.

[0026] The working principle of the anti-loose pull rivet nut will be described below.

[0027] As Figures 1-5 shown, in the process of use, the anti-loose assembly is sleeved on the surface of pull rivet sleeve 11, and assembly lugs 23 are engaged with assembly recess 16 to avoid relative movement between the anti-loose assembly and pull rivet sleeve 11, then the nut is inserted into the hole in the sheet metal part to be fixed, then the bolt is threadedly connected with pull rivet portion 15, and then the bolt is pulled outward by the pull rivet tool, so that pull rivet sleeve 11 is deformed and is in contact with the surface of the sheet metal part, thereby achieving the fixation of the sheet metal part, and the setting of dual-purpose convex strip 14 can enhance the strength of the deformed part of pull rivet sleeve 11, and the deformed part can be tightly abutted against the sheet metal part after deformation to achieve the anti-slip effect, when the bolt pulls the deformed part of pull rivet sleeve 11, the elastic gasket 22 is extruded, so that the elastic gasket 22 is deformed and is in an energy storage state, when the pull rivet sleeve 11 is additionally deformed due to impact or vibration, the elastic gasket 22 releases kinetic energy, so that the pull rivet nut remains fixed, and the pull rivet nut is more convenient to use.

[0028] The utility model is described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A rivet nut for preventing loosening, comprising a rivet assembly, characterized in that: The surface of the rivet assembly is sleeved with an anti-loosening assembly, and the anti-loosening assembly comprises a sleeve (21), the bottom of the sleeve (21) is fixedly connected to an elastic gasket (22), and the top of the sleeve (21) is fixedly connected to an assembly protrusion (23).

2. The anti-loosening rivet nut according to claim 1, characterized in that: The rivet assembly comprises a rivet sleeve (11), and the upper end of the rivet sleeve (11) is fixedly connected to a limiting piece (12) in contact with the sheet metal.

3. The anti-loosening rivet nut according to claim 2, characterized in that: The top of the limiting piece (12) is fixedly connected with an anti-slip tooth (13) in contact with the surface of the bolt, and the surface of the rivet sleeve (11) is fixedly connected with a dual-purpose convex strip (14).

4. The anti-loosening rivet nut according to claim 3, characterized in that: The lower end of the inner wall of the rivet sleeve (11) is provided with a rivet portion (15) connected to the bolt, and the lower surface of the limiting piece (12) is provided with an assembly groove (16), and the inner wall of the assembly groove (16) is engaged with the surface of the assembly protrusion (23).

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