A rivet nut embedded sealing structure

Abstract

This utility model discloses an embedded sealing structure for a rivet nut, comprising a body, an annular groove recessed at the end of the body, an abutting part between the annular groove and the edge of the body, a guide part coaxially located in the middle of the annular groove and connected to the body, and a plurality of ribs between the outer wall of the guide part and the annular groove, the tips of the ribs facing the same direction as the guide part. The design of the tips makes it easier for the ribs to penetrate into the metal plate and penetrate deeper, allowing the rivet nut to withstand greater torque. Due to the design of the annular groove, the contact area between the abutting part and the metal plate is much smaller than that of a traditional rivet nut, but the same fastening effect can be achieved. That is, the contact area is smaller under the premise of achieving the same fastening effect. When the product is under pressure, the bottom surface of the product and the surface of the component are more likely to fit together, achieving physical sealing and reaching IP67 protection level.

Description

Technical Field

[0001] This utility model belongs to the field of fastening parts technology, specifically a riveted nut embedded sealing structure. Background Technology

[0002] In the processing of metal sheets, the use of rivet nuts is very common, thereby achieving the intended installation function. However, during use, the equipment will generate high-frequency vibrations, causing the rivet nuts to deflect and loosen. Therefore, how to prevent the nuts from rotating is an important research and development direction. Secondly, waterproofing is also important. Since the end face of the metal processing cannot be completely fitted with the surface of the sheet metal, many gaps will be generated. Over time, these gaps will allow moisture to seep in. Utility Model Content

[0003] The purpose of this utility model is to provide an embedded sealing structure for a riveted nut to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A rivet nut embedded sealing structure includes a body, an annular groove recessed at the end of the body, an abutting portion between the annular groove and the edge of the body, a guide portion coaxially located in the middle of the annular groove and communicating with the body, and a plurality of ribs between the outer wall of the guide portion and the annular groove, the tips of the ribs facing the same direction as the guide portion.

[0006] In a further technical solution, a flange is formed at the end of the body, the outer diameter of the flange is larger than the outer diameter of the body, the annular groove is enlarged, its edge has a slope, and it is filled with colloid in the annular groove.

[0007] In a further technical approach, the rib is in the form of a triangular prism, a trapezoid, or a serrated shape.

[0008] In a further technical solution, the rib is an asymmetrical triangular body, with the angle between one side and the side edge being 6°-20°, and the angle between the other side and the side edge being 15°-30°.

[0009] In a further technical solution, the rib is a symmetrical triangular body, with the included angle between the two side surfaces and the side edges being 15°-30°.

[0010] In a further technical solution, the number of the protruding ribs is a multiple of two, and they are arranged symmetrically.

[0011] The beneficial effects of this utility model are:

[0012] This new type of product uses a pointed tip design that allows the protruding rib to penetrate the metal plate more easily and deeply, enabling the rivet nut to withstand greater torque. Due to the design of the annular groove, the contact area between the contact part and the metal plate is much smaller than that of traditional rivet nuts, but it can still achieve the same fastening effect. That is, under the premise of achieving the same fastening effect, the contact area is smaller. When the product is under pressure, the bottom surface of the product and the surface of the component are more likely to fit together, achieving physical sealing and reaching IP67 protection level.

[0013] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0014] Figure 1 : A three-dimensional structural diagram of Embodiment 1 of this utility model.

[0015] Figure 2 : Front view of Embodiment 1 of this utility model.

[0016] Figure 3 : Three-dimensional structural diagram of Embodiment 2 of this utility model.

[0017] Figure 4 The rib of this utility model is an asymmetrical triangular structure.

[0018] Figure 5 The rib of this utility model is a symmetrical triangular structure.

[0019] Reference numerals: 1-body, 11-flange, 2-annular groove, 3-contacting part, 4-guide part, 5-rib, 51-tip part. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please refer to Figure 1-3 ;

[0022] The rivet nut described in this utility model is designed to improve the fastening effect and prevent rotation;

[0023] Example 1: Specifically, it includes a body 1, with an annular groove 2 recessed at the end of the body 1. An abutting part 3 is provided between the annular groove 2 and the edge of the body 1. A guide part 4 is provided coaxially with the body 1 in the middle of the annular groove 2. The guide part 4 is connected to the body 1. A plurality of protruding ribs 5 are provided between the outer wall of the guide part 4 and the annular groove 2. The plurality of protruding ribs 5 are spaced apart. Preferably, the protruding ribs 5 are triangular, trapezoidal or serrated, and the number of protruding ribs 5 is a multiple of two and they are symmetrically arranged.

[0024] It should be noted that, regardless of the shape of the rib 5, two of its sides contact the side of the guide part 4 and the annular groove 2 respectively, and the height of the rib 5 is greater than the height of the annular groove 2. Of course, the body 1, the annular groove 2, the guide part 4 and the rib 5 are integrally formed.

[0025] In addition, the rivet nut will deflect when subjected to high-frequency vibration, and the severity of the deflection is related to the contact area between the rivet nut and the metal part.

[0026] In use, the guide part 4 is passed through the through hole of the metal plate, and then the guide part 4 is enlarged with a tool while applying pressure to embed several protruding ribs 5 into the surface of the metal plate. According to the publicly available technical document "CN 222880081 U, a waterproof rivet nut structure", "through the tooth-like structure, multi-point limiting and fixing can be achieved after riveting". However, although such a structure can achieve a fixing effect, it indirectly increases its contact area with the metal plate, which will transmit vibration to the screw through the nut, causing it to loosen. In this embodiment, the tip 51 of the protruding rib 5 faces the same direction as the guide part 4. The tip 51 can be a sharp protrusion or a sharp edge.

[0027] Taking the 5-sided triangular rib as an example, two of its sides are connected to the guide part 4 and the annular groove 2 respectively, and the remaining side faces outward and gradually narrows to form a side. The design of the tip part 51 makes it easier for the rib 5 to penetrate into the metal plate and penetrate deeper, so that the rivet nut can withstand greater torque. At this time, the contact part 3 of the body 1 is in contact with the surface of the metal plate. In this embodiment, due to the design of the annular groove 2, the contact area between the contact part 3 and the metal plate is much smaller than the contact area between the traditional rivet nut and the metal plate, but it can still achieve the fastening effect. That is, the contact area is smaller under the premise of achieving the same fastening effect. When the product is under pressure, the bottom surface of the product and the surface of the parts are more likely to fit together to achieve physical sealing and can achieve IP67 protection.

[0028] In Example 2, based on a further extension of the implementation, a flange 11 is formed at the end of the body 1. The outer diameter of the flange 11 is larger than the outer diameter of the body 1. The annular groove 2 is enlarged and filled with colloid (not shown). During use, the deformation of the colloid can make the root fit more closely with the metal plate, blocking small gaps. Preferably, the inclination angle in the annular groove can effectively prevent the colloid from overflowing, improve the stability of the seal, and achieve IP68 protection. Since the colloid is placed in the annular groove 2, it will not affect the rigid bonding between the contact part 3 and the metal plate. The colloid has a buffering effect and will not transmit high-frequency vibrations to the body 1.

[0029] In this embodiment, refer to Figure 4 and Figure 5The convex rib 5 is an asymmetrical triangular body with an angle of 6°-20° between one side and the side edge, and an angle of 15°-30° between the other side and the side edge. The individual teeth have an asymmetrical tooth shape, and the overall angle is smaller. Under the same pressure, the resistance to embedding into the plate is smaller than that of symmetrical teeth, and it is easier to embed. Under the same pressure, the asymmetrical teeth can be pressed into the plate deeper.

[0030] The 5-rib symmetrical triangular body has an included angle of 15°-30° between the two sides. Although the symmetrical triangular body requires more force to be embedded in the metal plate, it is still easier to embed in the metal plate than the convex teeth in the existing technology because of its acute edges. Secondly, the symmetrical design makes the force more even, so that it can withstand greater torque without breaking.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rivet nut embedded sealing structure, characterized in that: Includes a body (1), an annular groove (2) is recessed at the end of the body (1), an abutting part (3) is provided between the annular groove (2) and the edge of the body (1), a guide part (4) is provided coaxially with the body (1) and the guide part (4) is connected to the body (1), and a plurality of ribs (5) are provided between the outer wall of the guide part (4) and the annular groove (2), the tip (51) of the ribs (5) and the guide part (4) are oriented in the same direction.

2. The embedded sealing structure for a riveted nut according to claim 1, characterized in that: The end of the body (1) is formed with a flange (11), the outer diameter of the flange (11) is larger than the outer diameter of the body (1), the annular groove (2) is enlarged, its edge has a slope, and is filled with colloid in the annular groove (2).

3. The embedded sealing structure for a riveted nut according to claim 1, characterized in that: The rib (5) is triangular, trapezoidal or serrated.

4. The embedded sealing structure for a riveted nut according to claim 1, characterized in that: The rib (5) is an asymmetrical triangular body with an angle of 6°-20° between one side and the side edge, and an angle of 15°-30° between the other side and the side edge.

5. The embedded sealing structure for a riveted nut according to claim 1, characterized in that: The rib (5) is a symmetrical triangular body, and the included angle between the two sides and the side edge is 15°-30°.

6. The embedded sealing structure for a riveted nut according to claim 1, characterized in that: The number of the protruding ribs (5) is a multiple of two, and they are arranged symmetrically.

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