Improved pressing rivet nut

Abstract

The utility model relates to the technical field of nuts, and discloses an improved pressing rivet nut which comprises a nut body, an annular boss fixedly connected to the upper end of the nut body and knurling teeth arranged on the upper surface of the nut body and distributed in an annular array, and a groove is formed in the side end of the nut body. The groove is rotationally connected with a rotating plate through a rotating shaft, and the upper end of the nut body is connected with a protective cover. The utility model solves the problem that dust in the air is easy to attach to the tooth grooves of the knurling teeth, and also solves the problem that the pressing rivet nut can not be easily taken down and can not be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an improved pressure riveted nut. Background Art

[0002] Compression rivet nuts, also known as rivet nuts and self-fastening nuts, are a type of nut used on thin plates or sheet metals. They are round in shape and have embossed teeth and guide grooves on one end. The principle is to press the embossed teeth into the preset holes of the sheet metal. Generally speaking, the aperture of the preset hole is slightly smaller than the embossed teeth of the rivet nut. The pressure causes the teeth of the rivet nut to squeeze into the plate, causing plastic deformation around the preset hole, and the deformed object is squeezed into the groove, thereby producing a locking effect.

[0003] Chinese patent CN202320040636.3 discloses "A high-strength self-clinching nut", announcement number CN219197861U, which discloses a high-strength self-clinching nut, including a main body, a connecting block fixedly connected at the center of the upper end face of the main body, a guide groove fixedly connected at the upper end of the connecting block, a clamping table is provided at the center of the inner side wall of the guide groove near the upper end, embossed teeth are provided on the outer side wall of the connecting block, and internal threads are provided on the inner side wall of the main body. The self-clinching nut can well ensure the stability after installation during riveting, and is not easy to shake. However, the patent has the following shortcomings: 1. When the self-clinching nut is stored for a long time, dust in the air adheres to the surface of the self-clinching nut, and dust is easily accumulated in the tooth groove of the embossed teeth, resulting in the embossed teeth affecting the extrusion of the sheet metal, thereby causing the self-clinching nut and the sheet metal to be unstable; 2. After the self-clinching nut is used, it is difficult to remove the self-clinching nut from the sheet metal and cannot be reused. Utility Model Content

[0004] In order to solve the above problems of the prior art, the utility model provides an improved self-rivet nut, which solves the problem that dust in the air is easily attached to the tooth grooves of the embossed teeth, and also solves the problem that the self-rivet nut cannot be easily removed and cannot be reused.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved self-riveting nut, comprising a nut body, an annular boss fixedly connected to the upper end of the nut body, and embossed teeth arranged on the upper surface of the nut body and distributed in a ring array, a groove is opened at the side end of the nut body, the groove is rotatably connected to a rotating plate through a rotating shaft, and a protective cover is connected to the upper end of the nut body.

[0006] With the above structural design, the embossed teeth of the rivet nut are protected by providing a protective cover, which effectively prevents dust in the air from contacting the embossed teeth when the rivet nut is stored. The rotating plate allows the operator to easily lift the rivet nut. When the rivet nut is not needed, the rivet nut can be removed from the sheet metal without other tools.

[0007] Preferably, the upper surface of the nut body is provided with a plurality of insertion holes equidistantly arranged along the circumferential direction, and the lower end of the protective cover is fixedly connected with a plug-in column matching with the insertion hole at the position corresponding to the insertion hole.

[0008] With the above structural design, the protective cover can be fixed on the rivet nut through the cooperation of the plug-in column and the plug-in hole, which has a simple structure and is easy to operate.

[0009] Preferably, a sealing strip is provided at the lower end of the protective cover, and an annular groove is provided on the upper surface of the nut body at a position corresponding to the sealing strip, and the sealing strip can be inserted into the annular groove.

[0010] With the above structural design, the sealing strip plays a sealing and protective role, which is beneficial to prevent water vapor in the air from contacting the self-clinching nut, increasing the storage time of the self-clinching nut, and at the same time strengthening the connection between the protective cover and the nut body to prevent the protective cover from detaching from the nut body.

[0011] Preferably, the rotating plate is arc-shaped, the curvature of the rotating plate matches the curvature of the nut body, and a magnetic strip is provided on the inner side surface of the rotating plate.

[0012] By adopting the above structural design, the magnetic strip is arranged to make the rotating plate close to the nut body, thereby preventing the rotating plate from rotating at will and improving the integrity of the self-clinching nut.

[0013] Preferably, two rotating plates are symmetrically arranged along the axis of the nut body.

[0014] With the above structural design, two rotating plates are symmetrically arranged to enable the operator to exert force better, making it convenient for the operator to remove the rivet nut, thereby increasing practicality.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By providing a protective cover and a sealing strip, the embossed teeth of the rivet nut are protected, and dust and water vapor in the air are effectively prevented from contacting the embossed teeth when the rivet nut is stored, thereby extending the storage time of the rivet nut; a rotating plate is provided so that the operator can easily lift and pull the rivet nut, and when the rivet nut is not needed, the rivet nut can be removed from the sheet metal without other tools, so that the rivet nut can be reused, thereby increasing the practicality of the rivet nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the utility model;

[0019] Figure 3 It is a top sectional view of the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: an improved self-clinching nut, comprising a nut body 1, an annular boss 3 fixedly connected to the upper end of the nut body 1, and embossed teeth 2 arranged on the upper surface of the nut body 1 and distributed in a ring array, a groove 11 is provided at the side end of the nut body 1, and the groove 11 is rotatably connected to a rotating plate 7 through a rotating shaft 8, and a protective cover 4 is connected to the upper end of the nut body 1. The nut body 1 and the protective cover 4 are both cylindrical and have the same diameter. The protective cover 4 is provided to protect the embossed teeth of the self-clinching nut, and effectively prevents dust in the air from contacting the embossed teeth 2 when the self-clinching nut is stored. The rotating plate 7 allows the operator to easily lift the self-clinching nut, and when the self-clinching nut is not needed, the self-clinching nut can be removed from the sheet metal without other tools.

[0022] The upper surface of the nut body 1 is provided with a plurality of equidistant insertion holes 6 along the circumferential direction, and the lower end of the protective cover 4 is fixedly connected with a plug-in column 5 matching the plug-in hole 6 at a position corresponding to the plug-in hole 6. Through the matching of the plug-in column 5 and the plug-in hole 6, the protective cover 4 can be fixed on the rivet nut, with a simple structure and convenient operation.

[0023] A sealing strip 10 is disposed at the lower end of the protective cover 4, and an annular groove 12 is provided on the upper surface of the nut body 1 at a position corresponding to the sealing strip 10, and the sealing strip 10 can be inserted into the annular groove 12. The sealing strip 10 plays a sealing and protective role, thereby preventing water vapor in the air from contacting the self-clinching nut and increasing the storage time of the self-clinching nut.

[0024] The rotating plate 7 is arc-shaped, and the curvature of the rotating plate 7 matches the curvature of the nut body 1. A magnetic strip 9 is provided on the inner side of the rotating plate 7. The magnetic strip 9 is provided to make the rotating plate close to the nut body 1, thereby preventing the rotating plate 7 from rotating at will and increasing the integrity of the rivet nut.

[0025] The rotating plates 7 are symmetrically arranged with two of them along the axis of the nut body 1. The symmetrical arrangement of the two rotating plates 7 enables the operator to exert force better, facilitates the operator to remove the rivet nut, and increases practicality.

[0026] Working principle: When the nut body 1 needs to be stored for a long time, the protective cover 4 is installed on the nut body 1 through the cooperation of the plug-in column 5 and the socket 6, which effectively prevents dust and water vapor in the air from contacting the embossed teeth 22, and prolongs the storage time of the rivet nut. When the rivet nut needs to be used, the protective cover 4 is removed, and the rivet nut can be nailed into the prefabricated hole of the sheet metal. When the operator needs to take the rivet nut out of the prefabricated hole, the two rotating plates 7 connected to the side wall of the nut body 1 are rotated out, and the rivet nut can be separated from the sheet metal by pulling the rotating plate 7. After separation, the rotating plate 7 is put close to the nut body 1 again, and the magnetic strip 9 set on the inner side of the rotating plate 7 fixes the rotating plate 7 to prevent the rotating plate 7 from rotating at will, thereby increasing the integrity of the rivet nut. This patent solves the problem that dust in the air is easy to adhere to the tooth grooves of the embossed teeth 2, and at the same time solves the problem that the rivet nut cannot be easily removed and cannot be reused.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present utility model is described in detail with reference to the above embodiments, it is still possible for the technical solutions recorded in the above embodiments to be modified, or some of the technical features therein to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An improved self-clinching nut, comprising a nut body (1), an annular boss (3) fixedly connected to the upper end of the nut body (1), and embossed teeth (2) arranged on the upper surface of the nut body (1) and distributed in an annular array, characterized in that: A groove (11) is provided at the side end of the nut body (1), and the groove (11) is rotatably connected to a rotating plate (7) via a rotating shaft (8). A protective cover (4) is connected to the upper end of the nut body (1).

2. The improved self-clinching nut according to claim 1, characterized in that: The upper surface of the nut body (1) is provided with a plurality of insertion holes (6) equidistantly arranged along the circumferential direction, and the lower end of the protective cover (4) is fixedly connected with a plug-in column (5) matching with the insertion hole (6) at a position corresponding to the insertion hole (6).

3. The improved self-clinching nut according to claim 1, characterized in that: A sealing strip (10) is provided at the lower end of the protective cover (4), and an annular groove (12) is provided on the upper surface of the nut body (1) at a position corresponding to the sealing strip (10), and the sealing strip (10) can be inserted into the annular groove (12).

4. The improved self-clinching nut according to claim 1, characterized in that: The rotating plate (7) is arc-shaped, the curvature of the rotating plate (7) matches the curvature of the nut body (1), and a magnetic strip (9) is provided on the inner side surface of the rotating plate (7).

5. The improved self-clinching nut according to claim 1, characterized in that: Two rotating plates (7) are symmetrically arranged along the axis of the nut body (1).

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