Anti-loose rivet nut

Abstract

The utility model discloses an anti-loose rivet nut which comprises a fixing head and an installation column which are integrally connected, the fixing head is located at the top of the installation column, installation holes are formed in the fixing head and the installation column in a penetrating mode, each installation hole comprises a deformation groove and a threaded groove, the deformation groove is arranged close to the fixing head, and the threaded groove is arranged close to the threaded groove. An annular groove is formed in the middle of the deformation groove, a buffer rubber ring is arranged in the annular groove, and a circle of sealing body is arranged at the joint of the fixing head and the mounting column; according to the utility model, the annular groove is formed in the deformation groove, and the buffer rubber ring is arranged in the annular groove, so that when the rivet nut is installed, the buffer rubber ring can buffer the extrusion force during installation, the cracking phenomenon is avoided, and the nut is ensured to be installed firmly; the sealing body can be in interference fit with the mounting hole, the mounting hole is sealed and mounted, liquid is prevented from leaking from the mounting hole, the friction force between the sealing body and the mounting piece is increased, and the rivet nut is prevented from rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to the technical field of rivet nuts. Background Art

[0002] Rivet nuts, also known as pull rivet nuts or pull caps, are a type of fastener widely used in the fastening field of various metal plates, pipes and other manufacturing industries; they are mainly used to solve the shortcomings of easy melting of welding nuts on metal sheets and thin tubes, easy deformation of base materials during welding, and easy slipping of internal threads when tapping.

[0003] During the installation process of the rivet nut, the rivet nut is first placed in the pre-drilled hole, and then a special rivet gun or similar tool is used to apply tension to the other end of the rivet nut; this tension will cause the main part of the rivet nut to undergo plastic deformation inside the plate, so that it fits tightly on the plate to form a firm connection; at the same time, the threaded part of the rivet nut remains intact so that it can be used with other fasteners such as bolts and screws later; when existing rivet nuts are installed, the deformed part of the rivet nut is subjected to excessive force and is prone to cracking, affecting the tightness of the nut, and the rivet nut and the mounting part are prone to rotation, resulting in loosening. Summary of the Invention

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide an anti-loosening rivet nut that can solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model proposes an anti-loosening rivet nut, comprising an integrally connected fixing head and a mounting column, wherein the fixing head is located at the top of the mounting column, and mounting holes are provided through the fixing head and the mounting column, and the mounting hole comprises a deformation groove and a threaded groove, and the deformation groove is arranged close to the fixing head, and an annular groove is provided in the middle of the deformation groove, and a buffer rubber ring is provided in the annular groove, and a circle of sealing body is provided at the connection between the fixing head and the mounting column.

[0006] Preferably, the cross section of the annular groove is arc-shaped.

[0007] Preferably, the sealing body comprises an anti-slip ring and a sealing ring which are integrally connected, the anti-slip ring is arranged at the bottom of the fixed head, the surface of the sealing body is provided with anti-slip lines, and the sealing ring is arranged on the outside of the mounting column.

[0008] Preferably, the outer surface of the sealing ring is convex outward.

[0009] Preferably, the width of the deformation groove is greater than the width of the thread groove.

[0010] Preferably, the outer ring of the mounting post is provided with a plurality of latch teeth.

[0011] The beneficial effects of the utility model are as follows: the utility model provides an annular groove in the deformation groove, and a buffer rubber ring is provided in the annular groove. When the rivet nut is installed, the buffer rubber ring will buffer the extrusion force during installation, avoid cracking, and ensure that the nut is installed tightly; the sealing body can be interference fit with the installation hole, seal the installation hole, prevent liquid from leaking from the installation hole, and the sealing body increases the friction between the installation part, avoids the rivet nut from rotating, and improves the anti-loosening performance of the rivet nut.

[0012] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] In the figure: 1. Fixed head; 2. Mounting column; 3. Mounting hole; 4. Deformation groove; 5. Threaded groove; 6. Annular groove; 7. Buffer rubber ring; 8. Sealing body; 9. Anti-slip ring; 10. Sealing ring. DETAILED DESCRIPTION

[0015] See Figure 1 , a kind of anti-loosening rivet nut, comprising a fixed head 1 and a mounting column 2 connected as one piece, the fixed head 1 is located at the top of the mounting column 2, and a mounting hole 3 is provided on the fixed head 1 and the mounting column 2, the mounting hole 3 includes a deformation groove 4 and a thread groove 5, the deformation groove 4 is arranged close to the fixed head 1, the deformation groove 4 is provided with an annular groove 6, a buffer rubber ring 7 is provided in the annular groove 6, and a circle of sealing body 8 is provided at the connection between the fixed head 1 and the mounting column 2; the cross section of the annular groove 6 is arc-shaped; the sealing body 8 includes an anti-slip ring 9 and a sealing ring 10 connected as one piece, the anti-slip ring 9 is arranged at the bottom of the fixed head 1, the surface of the sealing body 8 is provided with anti-slip grooves, and the sealing ring 10 is arranged on the outer side of the mounting column 2; the outer surface of the sealing ring 10 is convex outward; the width of the deformation groove 4 is greater than the width of the thread groove 5; the outer ring of the mounting column 2 is provided with a plurality of teeth.

[0016] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A rivet nut, characterized in that: The invention comprises an integrally connected fixed head (1) and a mounting column (2), wherein the fixed head (1) is located at the top of the mounting column (2), and a mounting hole (3) is provided through the fixed head (1) and the mounting column (2), wherein the mounting hole (3) comprises a deformation groove (4) and a thread groove (5), wherein the deformation groove (4) is provided close to the fixed head (1), and an annular groove (6) is provided on the deformation groove (4), wherein a buffer rubber ring (7) is provided in the annular groove (6), and a ring of sealing body (8) is provided at the connection between the fixed head (1) and the mounting column (2).

2. The anti-loosening rivet nut according to claim 1, characterized in that: The cross section of the annular groove (6) is arc-shaped.

3. The anti-loosening rivet nut according to claim 1, characterized in that: The sealing body (8) comprises an anti-slip ring (9) and a sealing ring (10) which are integrally connected, the anti-slip ring (9) being arranged at the bottom of the fixed head (1), the surface of the sealing body (8) being provided with anti-slip grooves, and the sealing ring (10) being arranged on the outside of the mounting column (2).

4. The anti-loosening rivet nut according to claim 3, characterized in that: The outer surface of the sealing ring (10) is arranged to bulge outward.

5. The anti-loosening rivet nut according to claim 1, characterized in that: The width of the deformation groove (4) is greater than the width of the thread groove (5).

6. The anti-loosening rivet nut according to claim 1, characterized in that: The outer ring of the mounting column (2) is provided with a plurality of latch teeth.

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