Rivet nut assembly and rivet nut connecting structure

Abstract

The utility model discloses a pull rivet nut assembly and a pull rivet nut connecting structure, the pull rivet nut assembly comprises a flange plate, the middle of the flange plate is provided with a groove matched with a nut flange of a pull rivet nut, the flange plate is arranged at the center of the bottom of the groove, and a nut column of the pull rivet nut penetrates through the through groove to be exposed; according to the rivet nut assembly, the contact area is increased through the flange plate, the problems that a traditional rivet nut is small in flange face, not large in bearing face and prone to causing stress concentration are solved, and completeness and mutual connection strength of an installation piece and a base plate are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of rivet nut assemblies, and more specifically, relates to a rivet nut assembly and a rivet nut connection structure. Background Art

[0002] Traditional rivet nuts (such as Figure 1 As shown, it is composed of a nut flange 1' and a nut column 2', wherein the nut column 2' is provided with a round hole 3' and a threaded hole 4', and the aperture of the round hole 3' is larger than the aperture of the threaded hole 4'). Traditional rivet nuts often crack during processing due to the excessively large flange surface, so the size of the nut flange 1' is limited.

[0003] like Figure 2 As shown in the figure, the schematic diagram of the working state structure of the traditional rivet nut is that the rivet nut is riveted on the mounting base through the deformation of the circular hole 3' section, the nut flange 1' protrudes from the mounting base, and the mounting piece is installed through the mounting bolts. The outer circle of the mounting contact surface of the mounting piece is only the size of the nut flange 1', and the inner circle also needs to remove the aperture part of the circular hole 3', which leads to a small mounting contact surface of the mounting piece, which is easy to cause stress concentration and damage the mounting piece during use. Similarly, the traditional rivet nut and the mounting base also have a small contact area, and the stress concentration damages the mounting base. Utility Model Content

[0004] The utility model aims to provide a rivet nut assembly in view of the deficiencies in the prior art, so as to solve the problem that the existing traditional rivet nuts cannot be processed to obtain a large flange surface and easily cause stress concentration and damage the mounting parts and the mounting base during use.

[0005] In order to achieve the above object, the utility model provides a rivet nut assembly, comprising:

[0006] A flange plate, the middle of which is provided with a groove matching with the nut flange of the rivet nut;

[0007] A through slot is arranged at the center of the bottom of the groove, and the nut column of the rivet nut passes through the through slot and is exposed.

[0008] Optionally, a ring body is further included, one end of which is connected to the inner circumference of the through groove and the other end is away from the flange, and the nut column passes through the ring body.

[0009] Optionally, the groove, the through groove and the ring body form a step-like structure.

[0010] Optionally, the cross-section of the groove is circular or regular hexagonal.

[0011] Optionally, the rivet nut includes the nut flange and the nut column, a circular hole and a threaded hole are axially arranged in the nut column, and an end of the circular hole away from the threaded hole passes through the nut flange to communicate with the outside.

[0012] Optionally, the diameter of the circular hole is larger than the diameter of the threaded hole.

[0013] Optionally, the groove is interference fit with the nut flange.

[0014] The utility model also provides a rivet nut connection structure, comprising:

[0015] The above-mentioned rivet nut assembly;

[0016] A base plate, through which the nut column of the rivet nut is exposed;

[0017] A mounting member, arranged on the nut flange of the rivet nut;

[0018] One end of the rivet bolt passes through the mounting piece and is connected to the rivet nut.

[0019] Optionally, a via hole is provided on the substrate, and the inner periphery of the via hole contacts the outer periphery of the ring body of the rivet nut.

[0020] Optionally, the height of the ring body is consistent with the thickness of the substrate.

[0021] The utility model provides a rivet nut assembly, which has the following beneficial effects:

[0022] 1. The rivet nut assembly increases the contact area through the flange, which solves the problem of small flange surface and small bearing surface of traditional rivet nuts, which easily causes stress concentration, and ensures the integrity and mutual connection strength of the mounting parts and the base plate.

[0023] 2. The ring body assists / replaces the base plate to withstand the extrusion force during the riveting process, avoiding damage to the base plate due to its soft material during the riveting process, further expanding the application range of the rivet nut.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0026] Figure 1 The schematic diagram of the structure of the rivet nut according to the prior art is shown.

[0027] Figure 2 The figure shows a schematic diagram of the use status of the rear suspension bracket of the electric rear drive rear subframe structure according to the prior art.

[0028] Description of reference numerals:

[0029] 1', nut flange; 2', nut column; 3', round hole; 4', threaded hole.

[0030] Figure 3 A structural schematic diagram of a rivet nut assembly according to an embodiment of the utility model is shown.

[0031] Figure 4 A structural schematic diagram of a rivet nut connection structure according to an embodiment of the utility model is shown.

[0032] Description of reference numerals:

[0033] 1. Flange; 2. Groove; 3. Ring body; 4. Base plate; 5. Mounting parts; 6. Rivet bolts. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0035] like Figure 3 As shown, a rivet nut assembly comprises:

[0036] A flange 1, with a groove 2 in the middle thereof matching with the nut flange of the rivet nut;

[0037] The through slot is arranged at the bottom center of the groove 2, and the nut column of the rivet nut passes through the through slot and is exposed.

[0038] Specifically, the rivet end of the rivet nut passes through the groove 2 and the through groove is exposed, so that the nut flange is embedded in the groove 2, and then the cross-section of the nut flange is increased by the pull plate, avoiding the problem of local force concentration and easy damage.

[0039] Furthermore, the upper end groove 2 of the nut flange is flush, and the flange plate 1 is a separate part, and its size can be designed according to the use conditions without being restricted by the molding process, thereby avoiding the situation in which the material strength of the one-piece rivet nut is reduced in order to form a large flange surface, thereby reducing the overall performance of the nut.

[0040] In this embodiment, a ring body 3 is further included, one end of which is connected to the inner circumference of the through groove and the other end is away from the flange 1 , and the nut column passes through the ring body 3 .

[0041] Specifically, the ring body 3 acts as a bushing to adapt to the low strength of the part to be riveted, and avoids the reduction of connection performance caused by the deformation of the riveted part when the riveting force or the axial force is large.

[0042] Furthermore, the ring body 3 can be formed by punching and flanging during manufacturing, or can be a plurality of sheet-shaped or columnar circumferentially distributed on the inner circumference of the through groove.

[0043] In this embodiment, the groove 2, the through groove and the ring body 3 form a step-like structure.

[0044] In this embodiment, the cross section of the groove 2 is circular or regular hexagonal.

[0045] In this embodiment, the rivet nut includes a nut flange and a nut column. A circular hole and a threaded hole are axially arranged in the nut column. An end of the circular hole away from the threaded hole passes through the nut flange and is connected to the outside.

[0046] Specifically, the threaded hole and the threaded connection of the bolt used for rivet extrudes the circular hole to deform, thereby limiting the rivet nut from coming out and fixing the rivet nut.

[0047] In this embodiment, the diameter of the circular hole is larger than the diameter of the threaded hole.

[0048] Specifically, the thickness of the side wall of the circular hole section is smaller than the thickness of the side wall of the threaded hole section, so that the deformation of the nut column occurs in the circular hole section.

[0049] In this embodiment, the groove 2 is interference fit with the nut flange.

[0050] like Figure 4 As shown, the utility model also provides a rivet nut connection structure, including:

[0051] The above-mentioned rivet nut assembly;

[0052] A base plate 4, wherein the nut column of the rivet nut passes through the base plate 4 and is exposed;

[0053] A mounting member 5, arranged on the nut flange of the rivet nut;

[0054] One end of the rivet bolt 6 passes through the mounting piece 5 and is connected to the rivet nut.

[0055] In this embodiment, a via hole is provided on the substrate 4, and the inner periphery of the via hole contacts the outer periphery of the ring body 3 of the rivet nut.

[0056] Specifically, the ring body 3 is used to prevent the nut column from being squeezed and damaged by the through hole during the riveting deformation process.

[0057] In this embodiment, the height of the ring body 3 is consistent with the thickness of the substrate 4 .

[0058] When a rivet nut assembly of the present embodiment is used, taking the rivet nut with the rivet nut assembly as an example, the rivet nut assembly and the rivet nut are assembled, a through hole is opened on the substrate 4, and then the rivet nut with the rivet nut assembly is installed, so that the outer periphery of the ring body 3 and the inner periphery of the through hole are interference fit, and then the mounting part 5 is installed, and the rivet bolt 6 is passed through the mounting part 5 to connect with the rivet nut for rivet fixing, so that the rivet nut is fixed on the substrate 4. At the same time, the rivet bolt 6 can also be separated to separate the substrate 4 and the mounting part 5, so as to achieve the effect of replacing different mounting parts 5.

[0059] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A rivet nut assembly, characterized in that: include: A flange plate, the middle of which is provided with a groove matching with the nut flange of the rivet nut; A through slot is arranged at the center of the bottom of the groove, and the nut column of the rivet nut passes through the through slot and is exposed.

2. A rivet nut assembly according to claim 1, characterized in that: It also includes a ring body, one end of which is connected to the inner circumference of the through groove and the other end is far away from the flange, and the nut column passes through the ring body.

3. A rivet nut assembly according to claim 2, characterized in that: The groove, the through groove and the ring body form a step-shaped structure.

4. The rivet nut assembly according to claim 2, characterized in that: The cross section of the groove is circular or regular hexagonal.

5. The rivet nut assembly according to claim 1, characterized in that: The rivet nut comprises the nut flange and the nut column. A circular hole and a threaded hole are axially arranged in the nut column. An end of the circular hole away from the threaded hole passes through the nut flange and is connected to the outside.

6. A rivet nut assembly according to claim 5, characterized in that: The diameter of the circular hole is larger than the diameter of the threaded hole.

7. The rivet nut assembly according to claim 1, characterized in that: The groove is interference fit with the nut flange.

8. A rivet nut connection structure, characterized in that: include: The rivet nut assembly according to any one of claims 2 to 7; A base plate, through which the nut column of the rivet nut is exposed; A mounting member, arranged on the nut flange of the rivet nut; One end of the rivet bolt passes through the mounting piece and is connected to the rivet nut.

9. The rivet nut connection structure according to claim 8, characterized in that: The substrate is provided with a via hole, and the inner periphery of the via hole contacts the outer periphery of the ring body of the rivet nut.

10. The rivet nut connection structure according to claim 9, characterized in that: The height of the ring body is consistent with the thickness of the substrate.

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