Rivet nut suitable for double-layer plate and connecting system

Abstract

The utility model discloses a rivet nut suitable for a double-layer plate and a connecting system. The rivet nut comprises a rod part, a flange part and a blind hole, the flange part is arranged at one end of the rod part, and the blind hole penetrates through the flange part and extends in the axial direction of the rod part; the flange part and the rod part are connected through a chamfer, and the chamfer is arranged at the connecting end of the flange part and the outer surface of the rod part and gradually contracts in the direction, away from the flange part, of the rod part from the flange part. The connecting system comprises a double-layer plate and a pull rivet nut, and the pull rivet nut deforms under the action of pulling force and clamps the double-layer plate. The utility model can be adapted to double-layer plates with different upper-layer plate thicknesses, so that the application range of the product can be expanded, and the applicability of the product is wider.

Description

Technical Field

[0001] The present specification belongs to the technical field of fasteners, and in particular relates to a rivet nut and a connection system suitable for double-layer panels. Background Art

[0002] A pull rivet nut is a nut that is fastened to the connected parts by pull riveting. Pull rivet nuts have been widely used in the riveting of metal and non-metallic flat and non-flat structural parts, and are widely used in the electronics industry, machinery manufacturing, shipbuilding industry, automobile industry, and aviation field. In the existing products used in double-layer board environments, the flange and the rod are usually connected through a lower step, which makes the product structure more complicated, and according to the different thicknesses of the upper layer of the double-layer board, it is necessary to develop products with different step heights, which limits the application of the product.

[0003] To address the above problems, no effective solution has been proposed yet.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present invention and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present invention. Utility Model Content

[0005] The purpose of this specification is to provide a rivet nut and a connection system suitable for double-layer panels to solve the above problems.

[0006] This manual provides a rivet nut suitable for double-layer plates, including:

[0007] A rod portion, a flange portion and a blind hole; the flange portion is arranged at one end of the rod portion, and the blind hole passes through the flange portion and extends along the axial direction of the rod portion; the flange portion and the rod portion are connected by a chamfer, and the chamfer is arranged at the connecting end of the flange portion and the outer surface of the rod portion and gradually shrinks in the direction of the rod portion away from the flange portion.

[0008] Preferably, a step portion is provided on the inner wall of the blind hole, and the hole diameter of the step portion at a side away from the flange portion is smaller than the hole diameter of the step portion at a side close to the flange portion.

[0009] Preferably, an internal thread is provided on a side of the step portion away from the flange portion.

[0010] Preferably, the cross-section of the step portion on a side close to the flange portion is a regular hexagon.

[0011] Preferably, the cross section of the rod portion is a regular hexagon.

[0012] Preferably, the chamfered surface is coated with waterproof glue.

[0013] A connection system, characterized in that it includes a first layer of board and a second layer of board, and a rivet nut inserted into the first layer of board and the second layer of board, the stem of the rivet nut is deformed under the action of tension and cooperates with the flange to clamp the first layer of board and the second layer of board, the flange presses the first layer of board and the second layer of board, and the chamfer is embedded in the first layer of board.

[0014] Furthermore, the double-layer plate is provided with a mounting hole through which the rivet nut passes, the chamfer height of the rivet nut is smaller than that of the first layer plate, and the outer diameter of the chamfer is smaller than the aperture of the mounting hole.

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

[0016] 1. The utility model changes the lower step in the existing product into a chamfered structure, so that it can adapt to double-layer boards with different upper board thicknesses, thereby expanding the use range of the product and making the product more widely applicable.

[0017] 2. The utility model simplifies the structure of the product by arranging chamfers at the connecting ends of the flange and the rod, thereby simplifying the production process and saving processing time.

[0018] 3. The utility model changes the lower step in the existing product into a chamfered structure, thereby simplifying the mold structure and saving materials, thereby reducing the production cost of the product.

[0019] 4. The utility model makes the connection system waterproof by coating waterproof glue on the chamfer, thereby improving the waterproof property of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a cross-sectional view of a rivet nut suitable for double-layer plates provided in an embodiment of this specification;

[0022] Figure 2 It is a top view of a rivet nut suitable for double-layer plates provided in an embodiment of this specification;

[0023] Figure 3is a connection system diagram provided in the embodiments of this specification;

[0024] Figure 4 It is a connection system diagram in the prior art provided in the embodiments of this specification.

[0025] In the figure: 1, flange; 2, rod; 3, chamfer; 4, blind hole; 41, step portion; 42, internal thread; 5, lower step; 6, double-layer plate; 61, first layer plate; 62, second layer plate. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0027] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0028] Reference Figures 1 to 3 As shown, the embodiment of the present application provides a rivet nut suitable for a double-layer plate, comprising:

[0029] A rod portion 2, a flange portion 1 and a blind hole 4. The flange portion 1 is arranged at one end of the rod portion 2, and the blind hole 4 passes through the flange portion 1 and extends along the axial direction of the rod portion 2. The cross section of the rod portion 2 is a regular hexagon.

[0030] A chamfer 3 is provided at the connection between the flange portion 1 and the rod portion 2 on one side close to the rod portion 2. The chamfer 3 gradually shrinks on the lower surface of the flange portion in a direction away from the flange portion 1. Preferably, the surface of the chamfer 3 is coated with waterproof glue.

[0031] Furthermore, a step portion 41 is provided on the inner wall of the blind hole 4, and the aperture of the step portion 41 on the side away from the flange portion 1 is smaller than the aperture of the step portion 41 on the side close to the flange portion 1. An internal thread 42 is provided on the side of the step portion 41 away from the flange portion 1. The cross section of the step portion on the side close to the flange portion 1 is a regular hexagon.

[0032] The utility model is Figure 4 The lower step 5 of the existing rivet nut is changed into a chamfer 3, so that when the rivet nut is connected to the double-layer plate 6, the chamfer 3 is embedded in the first layer plate 61 to play a fixing role. And the chamfer 3 can adapt to the first layer plate 61 of different thicknesses.

[0033] When installing the above-mentioned rivet nut provided in this embodiment, the stem 2 of the rivet nut is placed into the mounting hole of the double-layer board, and the size of the mounting hole is smaller than the size of the flange 1 of this product. Furthermore, the head of the rivet gun can be inserted into the blind hole 4, and the head of the rivet gun can be screwed into the internal thread 42 of the blind hole 4. A certain rivet force is applied upward by the rivet gun, and the portion of the stem 2 outside the double-layer board is deformed, and the deformed portion of the stem 2 is pressed tightly against the second layer board 62, and the flange 1 is pressed tightly against the first layer board 61, so that the flange 1 cooperates with the deformed portion of the stem 2 to clamp the double-layer board 6, and the chamfer is embedded in the first layer board 61, further strengthening the tightness of this connection system.

[0034] Furthermore, the rivet nut may be a hexagonal nut, thereby preventing the rivet nut from rotating in the double-layer plate and affecting the sealing of the connection system.

[0035] Although different specific embodiments are mentioned in the content of this application, this application is not limited to the situations described in the industry standards or embodiments, etc. Some industry standards or slightly modified implementation plans based on the implementation of the custom methods or embodiments can also achieve the same, equivalent or similar, or predictable implementation effects after deformation of the above embodiments. The embodiments of data acquisition, processing, output, judgment methods, etc. after these modifications or deformations can still fall within the scope of the optional implementation plans of this application.

[0036] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A rivet nut suitable for double-layer plates, characterized in that: include: A rod portion, a flange portion and a blind hole; the flange portion is arranged at one end of the rod portion, and the blind hole penetrates the flange portion and extends along the axial direction of the rod portion; The flange portion is connected to the rod portion via a chamfer, and the chamfer is provided at a connection end between the flange portion and an outer surface of the rod portion and gradually shrinks from the flange portion along a direction of the rod portion away from the flange portion.

2. The rivet nut suitable for double-layer plates according to claim 1, characterized in that: A step portion is arranged on the inner wall of the blind hole, and the hole diameter of the step portion at a side away from the flange portion is smaller than the hole diameter of the step portion at a side close to the flange portion.

3. The rivet nut suitable for double-layer plates according to claim 2, characterized in that: An internal thread is arranged on a side of the step portion away from the flange portion.

4. The rivet nut suitable for double-layer plates according to claim 2, characterized in that: The cross section of the step portion on a side close to the flange portion is a regular hexagon.

5. The rivet nut suitable for double-layer plates according to claim 1, characterized in that: The cross section of the rod portion is a regular hexagon.

6. The rivet nut suitable for double-layer plates according to claim 1, characterized in that: The chamfered surface is coated with waterproof glue.

7. A connection system, characterized in that: It comprises a double-layer plate and a rivet nut, wherein the double-layer plate comprises a first layer plate and a second layer plate, and the rivet nut is inserted into the first layer plate and the second layer plate; the stem of the rivet nut according to any one of claims 1 to 6 is deformed under the action of tension and cooperates with the flange portion to clamp the first layer plate and the second layer plate, the flange portion presses the first layer plate and the second layer plate, and the chamfer is embedded in the first layer plate.

8. The connection system according to claim 7, characterized in that The double-layer plate is provided with a mounting hole through which the rivet nut passes. The chamfer height of the rivet nut is smaller than that of the first layer plate, and the outer diameter of the chamfer is smaller than the aperture of the mounting hole.

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