High-strength steel sealing pressing rivet nut

Abstract

The utility model belongs to the technical field of fasteners, and discloses a high-strength steel pressure riveting sealing nut which comprises a nut body provided with an inner threaded hole. The annular boss is arranged on the peripheral wall of the nut body; and the broken line type sealing structure is arranged between the boss and the top of the nut body and is used for forming a labyrinth-like sealing structure on the inner surface of the base material after being connected with the base material. Therefore, the connection stability of the high-strength steel sealing pressing rivet nut and the base material is improved. The broken line type sealing structure is arranged on the end face of the upper portion of the nut body, so that when the high-strength steel pressure riveting sealing nut is connected with a base material in a fastened mode, the high-strength steel pressure riveting sealing nut and the base material can form a labyrinth-like sealing structure, a good sealing effect can be achieved, and the use requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fastener, specifically relates to a high-strength steel riveting sealing nut. BACKGROUND

[0002] Thread connection is a widely used detachable fixed connection mode, which has the advantages of simple structure, reliable connection, convenient assembly and disassembly, etc. There are various fasteners suitable for thread connection. When high-strength steel sealing riveting is used for thread connection, it needs to be screwed into and fastened in the mounting hole of one of the connected parts to form a standard internal thread, and then a bolt (or screw) can be screwed into it, which can effectively improve the use conditions of bolt connection and improve the reliability of bolt connection. SUMMARY

[0003] To solve the above technical problems, the utility model aims at providing a high-strength steel riveting sealing nut which has simple structure, reliable connection and strong sealing.

[0004] To achieve the purpose of solving the above problems, the utility model provides a high-strength steel riveting sealing nut, which comprises,

[0005] The nut body has an internal thread hole;

[0006] The annular boss is arranged on the outer peripheral wall of the nut body; the upper end face of the annular boss is provided with a plurality of protruding tooth-shaped sealing geometric bodies; the upper edge of the nut body is also provided with a protruding annular closed flange in the circumferential direction, and the flange is in contact with the tooth-shaped sealing geometric body. Thus, the connection stability of the high-strength steel sealing riveting nut and the base material is improved.

[0007] According to the utility model, further, the plurality of tooth-shaped sealing geometric bodies are arranged in a concentric manner from the outer periphery of the annular boss.

[0008] According to the utility model, further, the flange is concentric with the tooth-shaped sealing geometric body, and the radially extended bottom of the flange outer peripheral surface is in contact with the inner side surface top of the tooth-shaped sealing geometric body connected with the annular boss.

[0009] According to the utility model, further, the flange is formed with a locking tooth, which is in contact with the connecting contact part during use and is locked, thereby increasing the resistance between the high-strength steel sealing riveting nut and the base material and limiting the relative rotation between them. The connection stability between the high-strength steel sealing riveting nut and the base material is further improved.

[0010] According to the utility model, further, the locking tooth is a flower tooth.

[0011] According to the utility model, further, the annular boss is located at the position close to the top of the nut body, and the two are integrally formed.

[0012] According to the utility model, further, the virtual circumferential connecting line of the plurality of tooth-shaped sealing geometric bodies is circular and concentric with the ring core of the annular boss.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses a plurality of concentric tooth-shaped sealing geometric bodies are arranged on the upper end face of the nut body, so that when the high-strength steel riveting sealing nut is fastened to the base material, a structure similar to a labyrinth seal can be formed between the high-strength steel riveting sealing nut and the base material, thereby achieving good sealing effect and meeting the use requirement. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of a high-strength steel sealing riveting nut.

[0016] Figure 2 It is Figure 1 a top view structural schematic view.

[0017] MARKS OF THE DRAWINGS:

[0018] 1-nut body, 11-flange, 2-internal thread hole, 3-annular boss, 31-tooth-shaped sealing geometric body, 4-fluted tooth. DETAILED DESCRIPTION

[0019] In order to make the utility model more obvious and easy to understand, the preferred embodiment is described in detail as follows with the drawings:

[0020] Please refer to Figure 1 and Figure 2 The application embodiment provides a high-strength steel sealing riveting nut, which comprises a nut body 1 and an annular boss 3 arranged on the outer peripheral wall of the nut body 1, and the annular boss 3 is located at the position close to the top of the nut body 1. Figure 1 The top is taken as the reference direction of placement; the nut body 1 is provided with an internal thread hole 2. The upper end face of the annular boss 3 is provided with a plurality of protruding tooth-shaped sealing geometric bodies 31, and the plurality of tooth-shaped sealing geometric bodies 31 are arranged in sequence and concentrically from the outer periphery of the annular boss 3, wherein the outer side is the side away from the base material in the nut installation state. The virtual circumferential connecting line of the plurality of tooth-shaped sealing geometric bodies 31 is circular and concentric with the ring core of the annular boss 3.

[0021] The upper edge of the nut body 1 is further provided with a raised annular closed flange 11 in the circumferential direction. The flange 11 is concentric with the toothed sealing geometry 31, and the flange 11 extends radially to the bottom of the outer circumferential surface thereof close to or abutting the top of the inner side surface of the annular boss 3 connected with the toothed sealing geometry 31, that is, the bottom of the flange 11 is spaced from the top of the annular boss 3, that is, a broken line type outer contour is formed.

[0022] Further, the flange 11 is formed with a flower tooth 4 which is in contact with the connecting piece during use and is stuck, thereby increasing the resistance between the high-strength sealing rivet nut and the base material and limiting the relative rotation therebetween.

[0023] Working principle: the nut body 1 is abutted against the surface of the base material, and is press riveted with the base material in a pressurized manner until the entire high-strength sealing rivet nut is press riveted on the base material, and the surface of the base material in contact with the flange 11 and the toothed sealing geometry 31 is deformed under pressure to form a surface cooperating with the toothed sealing geometry 31 and the flange 11. After the above fastening operation, the plurality of toothed sealing geometries form a structure similar to a labyrinth seal on the base material, greatly improving the sealing property of the high-strength sealing rivet nut and effectively meeting the sealing requirement. The flange 11 is formed with the flower tooth 4, and a drop-resistant coating is applied at the flower tooth 4. The flower tooth 4 is stuck in contact with the connecting piece during press riveting, and the arrangement of the flower tooth can prevent the high-strength sealing rivet nut from rotating relative to the base material during use, while achieving self-clamping of the nut body on the base material, thereby effectively preventing the base material and the nut body of the waterproof rivet nut from loosening due to some reasons and causing leakage.

[0024] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form or in essence. It should be noted that, for ordinary skilled persons in the art, some improvements and supplements can be made without departing from the present application, and these improvements and supplements should also be considered as the protection scope of the present application. Any equivalent changes, modifications and evolution of the above disclosed technical content without departing from the spirit and scope of the present application are equivalent embodiments of the present application; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the scope of the technical solutions of the present application.

Claims

1. A high-strength steel sealing press-fit nut, characterized in that, include, The nut body has an internal threaded hole; An annular boss is provided on the outer peripheral wall of the nut body; the upper end face of the annular boss is provided with a plurality of raised tooth-shaped sealing geometries; the upper edge of the nut body is also provided with a raised annular closed flange along the circumferential direction, and the flange contacts the tooth-shaped sealing geometries.

2. The high-strength steel sealing rivet nut as described in claim 1, characterized in that, The plurality of toothed sealing geometries are arranged concentrically from the outer periphery of the annular boss outwards.

3. The high-strength steel sealing rivet nut as described in claim 1, characterized in that, The flange is concentric with the toothed sealing geometry, and the flange extends radially to the bottom of its outer peripheral surface, which contacts the top of the inner surface of the toothed sealing geometry connected to the annular boss.

4. The high-strength steel sealing rivet nut as described in claim 1, characterized in that, The flange has locking teeth that come into contact with the connecting contact during use and jam, increasing the resistance between the high-strength steel sealing rivet nut and the substrate and restricting their relative rotation.

5. A high-strength steel sealing rivet nut as described in claim 4, characterized in that, The locking teeth are perforated.

6. A high-strength steel sealing rivet nut as described in claim 1, characterized in that, The annular boss is located near the top of the nut body, and the two are integrally formed.

7. A high-strength steel sealing rivet nut as described in claim 1, characterized in that, The virtual circumferential connection line of the multiple toothed sealing geometries is an annular circle and concentric with the center of the annular boss.

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