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Rivet nut
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A technology for rivet nuts and nut bodies, which is applied in the field of rivet nuts and can solve the problems that rivet nuts are easy to follow the assembly bolts to rotate
Pending Publication Date: 2021-03-05
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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Summary
Abstract
Description
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Problems solved by technology
[0005] This application is to solve the technical problem that the rivet nut is easy to follow the rotation of the assembly bolt
Method used
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Embodiment 1
[0042]Seefigure 1 ,figure 1 A structural diagram of a rivet nut is the present application Example 1,figure 1 The rivet nut, including the nut body, the center axis corresponding to the nut body is provided with via;
[0043]The nut body includes a restricted portion 1, the modifier 2, and the fixing portion 3, the limit portion 1, the deformation portion 2, and the fixing portion 3 are sequentially connected, and the outer wall of the limit portion 1 protrudes in the outer wall of the deformation portion 2;
[0044]Both the deformation portion 2 and the fixing portion 3 are elliptical, the through holes are sequentially penetrated through the limit portion 1, the modification portion 2, and the fixed portion 3, the cross section of the modification portion 2 and the cross section of the fixing portion 3 and the short axis inner and outer diameters. Ten: 9. With this long-shaped ratio, the rivet can be used directly through the cold head molding, and the riveting is deformable, and the ra...
Embodiment 2
[0054]Seefigure 1 ,figure 1 A schematic structural diagram of a rivet according to the second embodiment of the present application,figure 1 The rivet nut, including the nut body, the center axis corresponding to the nut body is provided with via;
[0055]The nut body includes a restricted portion 1, the modifier 2, and the fixing portion 3, the limit portion 1, the deformation portion 2, and the fixing portion 3 are sequentially connected, and the outer wall of the limit portion 1 protrudes in the outer wall of the deformation portion 2;
[0056]Both the deformation portion 2 and the fixing portion 3 are elliptical, the through holes are sequentially penetrated through the limit portion 1, the modification portion 2, and the fixed portion 3, the cross section of the modification portion 2 and the cross section of the fixing portion 3 and the short axis inner and outer diameters. Ten: 9. With this long-shaped ratio, the rivet can be used directly through the cold head molding, and the riv...
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Abstract
The invention provides a rivet nut. The rivet nut comprises a nut body, and a through hole is formed in the area corresponding to a center shaft of the nut body; the nut body comprises a limiting portion, a deformation portion and a fixing portion, the limiting portion, the deformation portion and the fixing portion are sequentially connected, and the outer wall of the limiting portion protrudes out of the outer wall of the deformation portion; and the deformation portion and the fixing portion are both elliptical cylinders, the through hole sequentially penetrates through the limiting portion, the deformation portion and the fixing portion, the diameter ratio of the long axis and the short axis of the cross section of the deformation portion is 10:9, and the diameter ratio of the long axis and the short axis of the cross section of the fixing portion is also 10:9. According to the rivet nut, the manufacturability that the rivet nut is directly formed through cold heading is ensured through the ratio of the long axis to the short axis, and the tensile force which is the same as that of a circular rivet nut can be used during riveting deformation; and a hole with the ratio of the long axis to the short axis being 10:9 is formed in a riveting plate correspondingly, and the process is the same as a process of directly forming a circular hole. The problem that the rivet nut rotatesalong with an assembling bolt during assembling after riveting is solved through clamping by the difference between the elliptical shape of the rivet nut and the long axis and the short axis of the elliptical hole of the riveting plate.
Description
Technical field[0001]This application relates to the technical field of fasteners, and in particular, there is a rivet.Background technique[0002]Pulling nuts have become an important means for the connection of automotive body nuts due to the advantages of low cost, high connection efficiency and simple methods.[0003]Traditional rivet nuts have a circular rivet and an outer hex rivet nut.[0004]The circular rivet is equipped with the riveting nut to follow the problem of the riveting bolt, which cannot be completely tightened to cause insufficient connection strength; the hex rivet is mounted in the hexagonal hole corresponding to the rivet hexagon. This installation method can effectively prevent the follow-up but is relatively large because there are six edges. The rivet is relatively large, and the riveting nut is a threaded thread for assembly because it is a thin-oriented member and is used. The tensile load is smaller, and the threaded slip teeth used to assemble when the tensi...
Claims
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Application Information
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