Wear-resistant bolt

Abstract

The utility model discloses a wear-resistant bolt which comprises a bolt main body, a gasket and a protective cover are sequentially sleeved on the bolt main body, and a limiting block is arranged at one end of the bolt, which is positioned on the protective cover; an oil injection channel is formed in the end, away from the limiting block, of the bolt body, a plurality of oil outlet holes are formed in the bolt body of the bolt at equal intervals, and the oil outlet holes communicate with the oil injection channel. According to the anti-collision bolt, the bolt body is sleeved with the protective cover, the protective cover can protect the bolt body, and threads of the bolt body are prevented from being collided; an oil injection channel is formed in the end, away from the limiting block, of the bolt body, a plurality of oil outlet holes are formed in the bolt body of the bolt at equal intervals, oil injection can be conducted through the oil injection channel, and therefore oil injection protection is conducted on the bolt body of the bolt, and the bolt body of the bolt is prevented from rusting.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a wear-resistant bolt. Background Art

[0002] Bolts are a common mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

[0003] The existing bolts are easily damaged by impact because the bolt body is exposed to the outside, which causes damage to the thread and makes subsequent disassembly and assembly inconvenient. Therefore, we propose a wear-resistant bolt. Utility Model Content

[0004] The utility model aims to provide a wear-resistant bolt to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant bolt, comprising a bolt body, on which a gasket and a protective cover are sequentially mounted, and a limit block is installed at one end of the bolt body located at the protective cover; an oil injection channel is opened at one end of the bolt away from the limit block, and a plurality of oil outlet holes are opened on the bolt body at equal intervals, and the oil outlet holes are connected to the oil injection channel.

[0006] Preferably, the limit block includes a cube structure and a boss structure, a boss structure is arranged on one side of the cube structure, the cube structure and the boss structure are an integrated structure, the cube structure and the boss structure are provided with an internal thread matching with the bolt body, the outer diameter of one end of the boss structure is smaller than the inner diameter of the protective cover, and the outer diameter of the other end of the boss structure is larger than the inner diameter of the protective cover.

[0007] Preferably, the protective cover is provided with strip-shaped notches at equal intervals, and a hoop is sleeved on the outer side of the protective cover.

[0008] Preferably, the bolt body is an external hexagonal bolt or an internal hexagonal bolt.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The bolt body is covered with a protective cover, which can protect the bolt body and prevent the thread of the bolt body from being hit;

[0011] 2. An oil injection channel is provided at one end of the bolt body away from the limit block, and a plurality of oil outlet holes are provided at equal intervals on the bolt body. Oil can be injected through the oil injection channel, thereby protecting the bolt body from rust. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the external hexagonal bolt of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the hexagon socket bolt of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the limit block of the utility model.

[0017] In the figure: 1. bolt body; 2. protective cover; 3. ferrule; 4. limit block; 5. gasket; 11. oil injection channel; 12. oil outlet hole; 21. strip notch; 41. cube structure; 42. boss structure; 43. internal thread. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0019] See also Figure 1-4 In an embodiment of the utility model, a wear-resistant bolt comprises a bolt body 1, wherein the bolt body 1 is an external hexagonal bolt or an internal hexagonal bolt; a gasket 5 and a protective cover 2 are sequentially sleeved on the bolt body 1, and the protective cover 2 can protect the bolt body 1 to prevent the thread of the bolt body from being hit; a limiting block 4 is installed at one end of the protective cover 2; the protective cover 2 is provided with strip notches 21 at equal intervals, and a hoop 3 is sleeved on the outer side of the protective cover 2;

[0020] An oil injection channel 11 is provided at one end of the bolt body 1 away from the limit block 4, and a plurality of oil outlet holes 12 are provided on the bolt body at equal intervals. The oil outlet holes 12 are connected to the oil injection channel 11, and oil can be injected through the oil injection channel 11, thereby protecting the bolt body from rust.

[0021] The limit block 4 includes a cube structure 41 and a boss structure 42. The boss structure 42 is arranged on one side of the cube structure 41. The cube structure 41 and the boss structure 42 are an integrated structure. The cube structure 41 and the boss structure 42 are provided with an internal thread 43 that cooperates with the bolt body 1. The outer diameter of one end of the boss structure 42 is smaller than the inner diameter of the protective cover 2, and the outer diameter of the other end of the boss structure 42 is larger than the inner diameter of the protective cover 2. The boss structure 42 can limit the protective cover 2 to prevent the protective cover 2 from rotating.

[0022] The working principle of the utility model is as follows: a bolt body 1 is covered with a protective cover 2, which can protect the bolt body 1 to prevent the thread of the bolt body from being hit; an oil injection channel 11 is opened at one end of the bolt body 1 away from the limit block 4, and a plurality of oil outlet holes 12 are opened on the bolt body at equal intervals, and oil can be injected through the oil injection channel 11, thereby protecting the bolt body from oil injection and preventing the bolt body from rusting.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wear-resistant bolt, comprising a bolt body (1), characterized in that: The bolt body (1) is covered with a gasket (5) and a protective cover (2) in sequence, and a limit block (4) is installed at one end of the bolt located at the protective cover (2); An oil injection channel (11) is provided at one end of the bolt body (1) away from the limit block (4), and a plurality of oil outlet holes (12) are provided at equal intervals on the bolt body, wherein the oil outlet holes (12) are connected to the oil injection channel (11).

2. A wear-resistant bolt according to claim 1, characterized in that: The limit block (4) comprises a cube structure (41) and a boss structure (42); the boss structure (42) is arranged on one side of the cube structure (41); the cube structure (41) and the boss structure (42) are an integrated structure; the cube structure (41) and the boss structure (42) are provided with internal threads (43) that cooperate with the bolt body (1); the outer diameter of one end of the boss structure (42) is smaller than the inner diameter of the protective cover (2); and the outer diameter of the other end of the boss structure (42) is larger than the inner diameter of the protective cover (2).

3. A wear-resistant bolt according to claim 2, characterized in that: The protective cover (2) is provided with strip-shaped notches (21) at equal intervals, and a hoop (3) is sleeved on the outer side of the protective cover (2).

4. The wear-resistant bolt according to claim 1, characterized in that: The bolt body (1) is an external hexagonal bolt or an internal hexagonal bolt.

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