Square-diameter bolt for injection molding pre-burying

Abstract

The utility model belongs to the technical field of embedded bolts, and particularly relates to a square-diameter bolt for injection molding and embedding, which comprises a bolt body, a cover plate and an elastic buffer block, one end of the bolt body, which is positioned in the elastic buffer block, is a hemispherical head, and one end of the bolt body, which is positioned in the cover plate, is a square block. The end, away from the elastic buffer block, of the bolt body is a threaded column. Through the arrangement of the square block, the bolt body can be effectively prevented from rotating in the covering plate, meanwhile, through the arrangement of the hemispherical head, the bolt body can be prevented from falling off from the elastic buffer block, and therefore the use stability of the buffer support is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of embedded bolts, in particular to a square diameter bolt for injection molding embedding. Background Art

[0002] The vehicle frame's main beam is the most important load-bearing component, and the longitudinal beam is one of its key components. Therefore, longitudinal beams play a crucial role in the vehicle's load-bearing function. Both side beam and center beam frames contain longitudinal beams. Longitudinal beams are typically stamped from low-alloy steel sheets, with a typical cross-section being a channel-shaped, though some also feature Z-shaped or box-shaped cross-sections.

[0003] The buffer bracket is generally fixed on the beam of a heavy-duty vehicle. The elastic body screwed to the bracket bears the buffering and limiting effect when the vehicle axle bounces under extreme road conditions. The buffer block in the buffer bracket is generally connected and fixed to the bracket by bolts.

[0004] However, the existing buffer bracket is composed of bolts with a relatively simple structure, and generally does not have an anti-rotation and anti-pull-off structure, thereby affecting the stability of the buffer bracket. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the bolt composition structure of the buffer bracket proposed in the above background technology is relatively simple and generally does not have anti-rotation and anti-pull-off structures, and to propose an injection molded pre-embedded square diameter bolt.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A square diameter bolt for injection molding pre-embedded includes a bolt body, a cover plate and an elastic buffer block. The end of the bolt body located in the elastic buffer block is a hemispherical head, the end of the bolt body located in the cover plate is a square block, and the end of the bolt body away from the elastic buffer block is a threaded column.

[0008] Preferably, the inner diameter of the hemispherical head is greater than the side length of the square block.

[0009] Preferably, an annular groove is provided at the connection between the threaded column and the square block.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In the utility model, the provision of the square block can effectively prevent the bolt body from rotating in the covering plate, and the provision of the hemispherical head can prevent the bolt body from falling off from the elastic buffer block, thereby effectively ensuring the stability of the buffer bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1The utility model is a structural schematic diagram of a square diameter bolt for injection molding pre-embedded.

[0013] In the figure: 1 cover plate, 2 elastic buffer block, 3 hemispherical head, 4 square block, 5 annular groove, 6 threaded column. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Reference Figure 1 A square bolt for pre-embedded injection molding includes a bolt body, a cover plate 1, and an elastic buffer block 2. One end of the bolt body located inside the elastic buffer block 2 is a hemispherical head 3, which can prevent the bolt body from falling out of the elastic buffer block 2. The inner diameter of the hemispherical head 3 is greater than the side length of the square block 4.

[0016] In this embodiment, one end of the bolt body located inside the covering plate 1 is a square block 4, which can prevent the bolt body from rotating inside the covering plate 1;

[0017] In this embodiment, the end of the bolt body away from the elastic buffer block 2 is a threaded column 6 for connecting and fixing with a nut, and an annular groove 5 is provided at the connection between the threaded column 6 and the square block 4.

[0018] In this embodiment, the provision of the square block 4 can effectively prevent the bolt body from rotating in the cover plate 1. At the same time, the provision of the hemispherical head 3 can prevent the bolt body from falling off from the elastic buffer block 2, thereby effectively ensuring the stability of the buffer bracket.

[0019] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A square diameter bolt for pre-embedded injection molding, comprising a bolt body, a cover plate (1) and an elastic buffer block (2), characterized in that: The end of the bolt body located in the elastic buffer block (2) is a hemispherical head (3), the end of the bolt body located in the covering plate (1) is a square block (4), and the end of the bolt body away from the elastic buffer block (2) is a threaded column (6).

2. The injection-molded pre-embedded square bolt according to claim 1, characterized in that: The inner diameter of the hemispherical head (3) is greater than the side length of the square block (4).

3. The injection-molded pre-embedded square bolt according to claim 1, characterized in that: An annular groove (5) is provided at the connection between the threaded column (6) and the square block (4).

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