Lightweight corrosion-resistant bolt

Abstract

The utility model relates to the technical field of bolts, and discloses a light corrosion-resistant bolt which comprises a bolt head and a mounting column, the lower surface of the bolt head is provided with two fixed inserting grooves, the outer surface of the bolt head is symmetrically provided with first connecting grooves, the inner walls of the two first connecting grooves are both in threaded connection with hexagon socket screws, and the inner walls of the two first connecting grooves are in threaded connection with the mounting column. A mounting column is fixedly mounted on the lower surface of the bolt head, and the outer surface of the mounting column is sleeved with a threaded sleeve assembly. Through the arrangement of the inserting groove, the first connecting groove, the limiting groove and the threaded sleeve assembly, the effect that threads can be independently replaced is achieved, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a lightweight and corrosion-resistant bolt. Background Technique

[0002] A bolt is a common fastener, which consists of a head and a screw rod (a cylinder with external threads). It needs to be used in conjunction with a nut to firmly connect two parts with through holes.

[0003] The utility model patent application document with the publication number of "CN213478885U" discloses a new type of corrosion-resistant bolt, including a nut and a screw rod. The outside of the nut is movably connected to a bolt sleeve, and a lower gasket is provided on the screw rod; the bolt sleeve includes an outer sleeve and an inner sleeve, and the inner sleeve is provided with a nut sleeve space for fitting with the nut; a galvanized anti-corrosion layer and a wear-resistant layer are provided on the outside of the nut, and a number of wear-resistant protrusions are provided on the wear-resistant layer; the outer sleeve includes an inner anti-corrosion rubber layer and an outer nano-fluorosilicon anti-corrosion layer; the lower gasket includes a plastic body inside and an anti-corrosion rubber outer layer wrapping the plastic body. The utility model provides multiple anti-corrosion protections, including the anti-corrosion structure of the bolt body, the anti-corrosion structure of the lower gasket, and the anti-corrosion structure of the bolt sleeve.

[0004] The new type of corrosion-resistant bolt disclosed in the above document has the following defects: after a long time, the threads will be worn. When the wear reaches the point where it cannot be used, the threads cannot be replaced separately, and the use cost is relatively high.

[0005] It can be seen that the existing new type of corrosion-resistant bolt does not have a threaded structure that can be conveniently disassembled separately, and it is necessary to improve the existing deficiencies to provide a lightweight and corrosion-resistant bolt. Content of the Utility Model

[0006] The purpose of the utility model is to provide a lightweight and corrosion-resistant bolt to solve the problems raised in the above background technique.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model is a lightweight and corrosion-resistant bolt, including a bolt head and a mounting post. A plug-in slot is opened on the lower surface of the bolt head. The number of the plug-in slots is fixed at two. First connection slots are symmetrically opened on the outer surface of the bolt head. Inner hexagon bolts are threadedly connected to the inner walls of the two first connection slots. The lower surface of the bolt head is fixedly installed with a mounting post, and a threaded sleeve assembly is sleeved on the outer surface of the mounting post.

[0009] Furthermore, a limiting slot is opened on the outer surface of the mounting post, and the number of the limiting slots is fixed at four.

[0010] Further, the threaded sleeve assembly includes a threaded sleeve body, the threaded sleeve body is sleeved on the outer surface of the mounting post, one end of the mounting post is symmetrically provided with insertion blocks, and the insertion blocks are inserted into the interior of the insertion slots.

[0011] Further, second connection grooves are formed on the outer surfaces of the insertion blocks, the second connection grooves communicate with the first connection grooves, and the second connection grooves are in threaded connection with the hexagon socket head bolts.

[0012] Further, limiting blocks are fixedly installed on the inner wall of the threaded sleeve body, and the number of the limiting blocks is fixed at four.

[0013] Further, an anti-corrosion pad is sleeved on the outer surface of the threaded sleeve body.

[0014] The utility model has the following beneficial effects:

[0015] (1) In the utility model, an insertion slot is arranged on the lower surface of the bolt head for receiving the insertion blocks to ensure the preliminary positioning of the bolt and the threaded sleeve assembly. The hexagon socket head bolts are respectively in threaded connection with the first connection groove of the bolt head and the second connection groove of the threaded sleeve assembly to realize the fastening of the bolt head and the mounting post to the threaded sleeve assembly and ensure the tight connection between the two. The limiting groove is on the mounting post and cooperates with the limiting block to limit the rotation of the threaded sleeve body. The arrangement of the four limiting blocks and the limiting groove ensures that the threaded sleeve will not rotate when subjected to external forces, improving the reliability of the connection. Through the cooperation of the above-mentioned parts, a bolt with replaceable threads is achieved, avoiding the situation where the threads on the bolt are damaged and cannot be used, and the threads can be replaced separately, reducing the use cost.

[0016] Of course, when implementing any product of the utility model, it is not necessarily required to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is an exploded schematic diagram of the overall structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the threaded sleeve assembly of the present utility model;

[0021] Figure 4 Structural schematic diagram of the bolt head and mounting post of the present utility model;

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] In the figure: 1, bolt head; 101, insertion slot; 102, first connection slot; 2, hexagon socket head bolt; 3, mounting post; 301, limit slot; 4, threaded sleeve assembly; 401, threaded sleeve body; 402, insertion block; 403, limit block; 404, second connection slot; 5, anti-corrosion pad. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 - Figure 4 As shown, the present utility model is a lightweight and corrosion-resistant bolt, including a bolt head 1 and a mounting post 3. An insertion slot 101 is provided on the lower surface of the bolt head 1. The number of insertion slots 101 is fixed at two. First connection slots 102 are symmetrically provided on the outer surface of the bolt head 1. Inner hexagon socket head bolts 2 are threadedly connected to the inner walls of the two first connection slots 102. A mounting post 3 is fixedly installed on the lower surface of the bolt head 1. A threaded sleeve assembly 4 is sleeved on the outer surface of the mounting post 3;

[0026] The outer surfaces of the bolt head 1, the inner hexagon socket head bolts 2, the mounting post 3, and the threaded sleeve assembly 4 are all coated with a galvanized layer, thereby achieving the anti-corrosion effect on the overall bolt;

[0027] Limit slots 301 are provided on the outer surface of the mounting post 3. The number of limit slots 301 is fixed at four;

[0028] The threaded sleeve assembly 4 includes a threaded sleeve body 401. The threaded sleeve body 401 is sleeved on the outer surface of the mounting post 3. Insertion blocks 402 are symmetrically installed at one end of the mounting post 3. The insertion blocks 402 are inserted into the inside of the insertion slots 101;

[0029] Second connection slots 404 are provided on the outer surfaces of the insertion blocks 402. The second connection slots 404 are communicated with the first connection slots 102. The second connection slots 404 are threadedly connected to the inner hexagon socket head bolts 2;

[0030] Limit blocks 403 are fixedly installed on the inner wall of the threaded sleeve body 401. The number of limit blocks 403 is fixed at four;

[0031] The lower surface of the bolt head 1 is provided with a socket groove 101 for receiving the socket block 402 to ensure the preliminary positioning of the bolt and the threaded sleeve assembly 4. The hexagon socket head bolt 2 is respectively threadedly connected to the first connection groove 102 of the bolt head 1 and the second connection groove 404 of the threaded sleeve assembly 4 to realize the fastening of the bolt head 1 and the mounting post 3 to the threaded sleeve assembly 4, ensuring a tight connection between the two. The limiting groove 301 is on the mounting post 3 and cooperates with the limiting block 403 to restrict the rotation of the threaded sleeve body 401. The arrangement of the four limiting blocks 403 and the limiting groove 301 ensures that the threaded sleeve will not rotate when subjected to external forces, improving the reliability of the connection. Through the cooperation of the above-mentioned parts, a bolt with replaceable threads is achieved, avoiding the situation where the threads on the bolt are damaged and cannot be used, and the threads can be replaced separately, reducing the use cost;

[0032] An anti-corrosion pad 5 is sleeved on the outer surface of the threaded sleeve body 401.

[0033] During use, first, the lower surface of the bolt head 1 is provided with a socket groove 101 for receiving the socket block 402 to ensure the preliminary positioning of the bolt and the threaded sleeve assembly 4. The hexagon socket head bolt 2 is respectively threadedly connected to the first connection groove 102 of the bolt head 1 and the second connection groove 404 of the threaded sleeve assembly 4 to realize the fastening of the bolt head 1 and the mounting post 3 to the threaded sleeve assembly 4, ensuring a tight connection between the two. The limiting groove 301 is on the mounting post 3 and cooperates with the limiting block 403 to restrict the rotation of the threaded sleeve body 401. The arrangement of the four limiting blocks 403 and the limiting groove 301 ensures that the threaded sleeve will not rotate when subjected to external forces, improving the reliability of the connection. Through the cooperation of the above-mentioned parts, a bolt with replaceable threads is achieved, avoiding the situation where the threads on the bolt are damaged and cannot be used, and the threads can be replaced separately, reducing the use cost. The outer surfaces of the bolt head 1, the hexagon socket head bolt 2, the mounting post 3, and the threaded sleeve assembly 4 are all coated with a galvanized layer to achieve the overall anti-corrosion effect of the bolt.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A lightweight, corrosion-resistant bolt comprising a bolt head (1) and a mounting post (3), characterized in that: The lower surface of the bolt head (1) is provided with an insertion groove (101), the number of the insertion grooves (101) is fixed at two, the outer surface of the bolt head (1) is symmetrically provided with first connection grooves (102), the inner walls of the two first connection grooves (102) are both threadedly connected with hexagon socket bolts (2), the lower surface of the bolt head (1) is fixedly mounted with a mounting column (3), and the outer surface of the mounting column (3) is sleeved with a threaded sleeve assembly (4).

2. The lightweight, corrosion-resistant bolt according to claim 1, characterized in that: The outer surface of the mounting column (3) is provided with limiting grooves (301), and the number of the limiting grooves (301) is fixed at four.

3. The lightweight, corrosion-resistant bolt according to claim 1, characterized in that: The threaded sleeve assembly (4) comprises a threaded sleeve body (401), the threaded sleeve body (401) being sleeved on the outer surface of the mounting column (3), a plug-in block (402) being symmetrically mounted on one end of the mounting column (3), and the plug-in block (402) being plugged into the interior of the plug-in slot (101).

4. The lightweight, corrosion-resistant bolt according to claim 3, characterized in that: The outer surface of the plug-in block (402) is provided with a second connection groove (404), the second connection groove (404) is connected to the first connection groove (102), and the second connection groove (404) is threadedly connected to the hexagon socket bolt (2).

5. The lightweight, corrosion-resistant bolt according to claim 3, characterized in that: Limit blocks (403) are fixedly mounted on the inner wall of the threaded sleeve body (401), and the number of the limit blocks (403) is fixed at four.

6. The lightweight, corrosion-resistant bolt according to claim 3, characterized in that: An anti-corrosion pad (5) is sleeved on the outer surface of the threaded sleeve body (401).

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