High-strength steel sealing pressing rivet nut

Abstract

The invention 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, the good sealing effect can be achieved, and the use requirement is met.

Description

Technical Field

[0001] The invention belongs to the technical field of fasteners, and in particular relates to a high-strength steel pressure-riveted sealing nut. Background Art

[0002] Threaded connection is a widely used detachable fixed connection method with the advantages of simple structure, reliable connection, and easy assembly and disassembly. There are many fasteners suitable for threaded connection. When using high-strength steel sealed pressure riveting for threaded 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 used to screw it into it, which can effectively improve the use conditions of the bolted connection and improve the reliability of the bolted connection. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a high-strength steel riveted sealing nut with simple structure, reliable connection and strong sealing performance.

[0004] In order to achieve the purpose of solving the above problems, the technical solution adopted by the present invention is to provide a high-strength steel sealed self-clinching nut, comprising:

[0005] A nut body having an internal threaded hole;

[0006] An annular boss is arranged on the outer peripheral wall of the nut body;

[0007] The broken line sealing structure is arranged between the boss and the top of the nut body, and after being connected to the substrate, is used to form a labyrinth-like sealing structure on the inner surface of the substrate, thereby improving the connection stability between the high-strength steel sealed rivet nut and the substrate.

[0008] According to the present invention, further, the zigzag sealing structure includes a plurality of raised tooth-shaped sealing geometric bodies arranged on the upper end surface of the annular boss, and the plurality of tooth-shaped sealing geometric bodies are arranged concentrically in sequence from the outer periphery of the annular boss to the outside.

[0009] According to the present invention, further, the zigzag sealing structure also includes that a raised annular closed flange is also provided on the upper edge of the nut body along the circumferential direction, and the flange is in contact with the toothed sealing geometric body.

[0010] According to the present invention, further, the flange is concentric with the toothed sealing geometry, and the flange radially extends to the bottom of its outer peripheral surface to contact the top of the inner side surface of the toothed sealing geometry connected to the annular boss.

[0011] According to the present invention, further, a locking tooth is formed on the flange, which is locked with the connection contact piece during use, thereby increasing the resistance between the high-strength steel sealed pressure rivet nut and the substrate, and limiting the relative rotation between the two, thereby further improving the connection stability between the high-strength steel sealed pressure rivet nut and the substrate.

[0012] According to the present invention, further, the locking teeth are flower teeth.

[0013] According to the present invention, further, the annular boss is located near the top of the nut body, and the two are an integrally formed structure.

[0014] According to the present invention, further, the virtual circumferential connecting line of the plurality of tooth-shaped sealing geometric bodies is in the shape of a circular ring and is concentric with the center of the annular boss.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention arranges a plurality of concentric tooth-shaped sealing geometric bodies on the upper end face of the nut body, so that when the high-strength steel riveted sealing nut is fastened to the substrate, it can form a labyrinth seal structure with the substrate, thereby achieving a better sealing effect and meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a high-strength steel sealed self-clinching nut of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the top view structure.

[0019] Description of reference numerals:

[0020] 1- nut body, 11- flange, 2- internal threaded hole, 3- annular boss, 31- toothed sealing geometry, 4- flower teeth. DETAILED DESCRIPTION

[0021] In order to make the present invention more clearly understood, a preferred embodiment is described in detail with reference to the accompanying drawings as follows:

[0022] See also Figure 1 and Figure 2 The embodiment of the present application provides a high-strength steel sealed pressure riveted nut, comprising a nut body 1 and an annular boss 3 arranged on the outer peripheral wall of the nut body 1, the annular boss 3 is located near the top of the nut body 1; preferably, the nut body 1 and the annular boss 3 are an integrally formed structure to improve the overall strength and rigidity. Figure 1The placement direction is taken as the reference; the nut body 1 has an internal threaded hole 2. The upper end surface of the annular boss 3 is provided with a plurality of raised toothed sealing geometric bodies 31, and the plurality of toothed sealing geometric bodies 31 are arranged concentrically from the outer circumference of the annular boss 3 to the outside in sequence, and the outer side here is the side facing away from the substrate when the nut is installed. The virtual circumferential connecting line of the plurality of toothed sealing geometric bodies 31 is circular and concentric with the center of the annular boss 3.

[0023] The upper edge of the nut body 1 is also provided with a raised annular closed flange 11 along the circumferential direction. The flange 11 is concentric with the toothed sealing geometry 31, and the flange 11 radially extends to the bottom of its outer peripheral surface close to or in contact with the top of the inner surface of the toothed sealing geometry 31 connected to the annular boss 3, that is, there is a gap between the bottom of the flange 11 and the top of the annular boss 3, that is, a broken line outer contour is formed.

[0024] Furthermore, a flower tooth 4 is formed on the flange 11, which is stuck in contact with the connecting contact piece during use, thereby increasing the resistance between the high-strength steel sealed rivet nut and the base material and limiting the relative rotation between the two.

[0025] Working principle: The nut body 1 is pressed against the surface of the substrate, and the nut body 1 is fixed to the substrate by pressurization until the entire high-strength steel sealed rivet nut is fixed to the substrate, and the surface of the substrate in contact with the flange 11 and the toothed sealing geometry 31 is deformed under pressure to form a surface that matches the toothed sealing geometry 31 and the flange 11. After the above-mentioned tightening operation, a plurality of toothed sealing geometries form a structure similar to a labyrinth seal on the substrate, which greatly improves the sealing performance of the high-strength steel sealed rivet nut and can effectively meet the sealing requirements. The flange 11 is formed with flower teeth 4, and the flower teeth 4 are coated with anti-drop glue. The flower teeth 4 are stuck in contact with the connector during the riveting process. The setting of the flower teeth can prevent the high-strength steel sealed rivet nut from rotating with the substrate during use, and at the same time realize the self-tightening of the nut body on the substrate, which can effectively prevent the substrate and the nut body of the waterproof rivet nut from loosening due to some reason, thereby causing leakage.

[0026] The above is only a preferred embodiment of the present invention, and is not any formal or substantial limitation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and equivalent changes made by using the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high-strength steel sealed self-clinching nut, characterized in that: include, A nut body having an internal threaded hole; An annular boss is arranged on the outer peripheral wall of the nut body; The broken line type sealing structure is arranged between the boss and the top of the nut body, and is used to form a labyrinth-like sealing structure on the inner surface of the substrate after being connected to the substrate.

2. A high-strength steel sealed self-clinching nut as claimed in claim 1, characterized in that: The zigzag sealing structure includes a plurality of raised tooth-shaped sealing geometric bodies arranged on the upper end surface of the annular boss, and the plurality of tooth-shaped sealing geometric bodies are arranged concentrically in sequence from the outer periphery of the annular boss to the outside.

3. A high-strength steel sealed self-clinching nut as claimed in claim 2, characterized in that: The broken-line sealing structure also includes that a raised annular closed flange is also provided along the circumferential direction on the upper edge of the nut body, and the flange is in contact with the toothed sealing geometric body.

4. A high-strength steel sealed self-clinching nut as claimed in claim 3, characterized in that: The flange is concentric with the tooth-shaped sealing geometry, and the flange radially extends to the point where the bottom of its outer peripheral surface contacts the top of the inner side surface of the tooth-shaped sealing geometry connected to the annular boss.

5. A high-strength steel sealed self-clinching nut as claimed in claim 3, characterized in that: The flange is formed with locking teeth, which come into contact with the connecting contact piece and get stuck during use, thereby increasing the resistance between the high-strength steel sealed rivet nut and the base material and limiting the relative rotation between the two.

6. A high-strength steel sealed self-clinching nut as claimed in claim 5, characterized in that: The locking teeth are flower teeth.

7. A high-strength steel sealed self-clinching nut as claimed in claim 1, characterized in that: The annular boss is located near the top of the nut body, and the two are an integrally formed structure.

8. A high-strength steel sealed self-clinching nut as claimed in claim 2, characterized in that: The virtual circumferential connecting line of the plurality of tooth-shaped sealing geometric bodies is in the shape of a circular ring and is concentric with the center of the annular boss.

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