Abrasion-resistant bolt with bolt cap

Abstract

The utility model relates to the technical field of abrasion-resistant bolts, in particular to an abrasion-resistant bolt with a bolt cap, which comprises a bolt column, external threads are arranged on the outer wall of the bolt column, a bolt head is welded at the end of the bolt column, a first sealing ring is adhered to one side of the bolt head, the bolt cap is arranged on the bolt column, and internal threads are arranged on the inner wall of the bolt cap. First rotary knobs are fixed to the two ends of the bolt head, second rotary knobs are fixed to the two ends of the outer wall of the bolt cap, and an annular groove is formed in the end of one side of the bolt head. The bolt head and the bolt cap are provided with the corresponding knobs respectively, a worker can operate the knobs with two hands, threaded butt joint of the bolt cap and the bolt column can be achieved simply and conveniently without tools, and the bolt column, the bolt head and the bolt cap are all made of double-layer materials, have enough strength and are convenient to use. And a good abrasion-resistant effect is also achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant bolts, and particularly relates to a wear-resistant bolt with a bolt cap. Background Art

[0002] A bolt is a type of fastener composed of a head and a screw rod, used for fastening and connecting two parts with through holes, and is an anchoring component for anchoring the connected parts to a hardened concrete base material.

[0003] Bolts used in engineering are also a type of connector between components. Bolts are made in various different styles, diameters, lengths, and various specifications as required.

[0004] Bolts are made of different materials as required and are divided into ordinary bolts and high-strength bolts. Ordinary bolts have grade distinctions according to strength, and high-strength bolts are further divided into friction high-strength bolts and bearing high-strength bolts, etc.

[0005] There are relatively many types of bolt materials, including carbon steel, alloy steel, stainless steel, heat-resistant steel, etc., hundreds or thousands of kinds.

[0006] For example, stainless steel screws (materials include SUS304\316\316L\321\2520), duplex steel bolts, bolts and nuts made of materials resistant to high temperature and high pressure and low temperature (A193 GRB7\B7\B7M\B16\B8\B8M, A320 L7\L7M\B8\B8M, A194 2 / 2H / 4 / 7 / 8 / 8M, 35CrMo\30CrMo, 25Cr2MoA, A453-660).

[0007] Ordinary bolts can be divided into three grades A, B, and C according to the manufacturing precision. Grades A and B are precision bolts, and grade C is a rough bolt.

[0008] Currently, when the conventional bolt structure is used with a nut, a wrench is required for docking operation. For some non-load-bearing positions, when assembling the bolt and the nut, this type of bolt structure is time-consuming and laborious to install, and the sealing performance between the bolt and the nut and the object cannot be well guaranteed when the bolt penetrates the object and docks with the nut. Content of the Utility Model

[0009] The purpose of the utility model is to provide a wear-resistant bolt with a bolt cap to solve the problem of enabling the bolt and the nut to be quickly spliced.

[0010] To achieve the above object, the present utility model provides the following technical solution: a wear-resistant bolt with a bolt cap, including a bolt column, an external thread is provided on the outer wall of the bolt column, a bolt head is welded to the end of the bolt column, a first sealing ring is adhered to one side of the bolt head, a bolt cap is provided on the bolt column, an internal thread is provided on the inner wall of the bolt cap, the external thread and the internal thread are installed in butt joint through threads, first knobs are fixed at both ends of the bolt head, second knobs are fixed at both ends of the outer wall of the bolt cap, an annular groove is provided at one side end of the bolt head, and a second sealing ring is adhered and filled on the inner wall of the annular groove.

[0011] Preferably, the bolt head is of a hexagonal structure.

[0012] Preferably, both the first sealing ring and the second sealing ring are of a circular ring structure and are both made of water-swellable rubber material.

[0013] Preferably, the bolt column, the bolt head and the bolt cap are all composed of an outer layer and a base layer, and the outer layer is plated on the base layer.

[0014] Preferably, the outer layer is made of nickel-plated material.

[0015] Preferably, the base layer is made of stainless steel material.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. In the present utility model, corresponding knobs are respectively provided on the bolt head and the bolt cap, and workers can operate the knobs with both hands to realize the threaded butt joint of the bolt cap and the bolt column, which is simple and convenient and can be completed without tools.

[0018] 2. The bolt column, the bolt head and the bolt cap of the present utility model are all composed of double-layer materials, which have sufficient strength and also have good wear-resistant and corrosion-resistant effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the schematic diagram of the shape of the bolt head of the present utility model;

[0021] Figure 3 is the schematic diagram of the shape of the second sealing ring of the present utility model;

[0022] Figure 4 is the schematic diagram of the structural composition of the bolt column of the present utility model.

[0023] In the figure: 1. Bolt column; 11. Bolt head; 12. First sealing ring; 13. Bolt cap; 14. First knob; 15. Annular groove; 16. Second sealing ring; 2. Outer layer; 21. Base layer. Detailed implementation mode

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

[0025] Embodiment I

[0026] Please refer to Figures 1-4 , a wear-resistant bolt with a bolt cap, including a bolt column 1, an external thread is provided on the outer wall of the bolt column 1, a bolt head 11 is welded to the end of the bolt column 1, a first sealing ring 12 is bonded to one side of the bolt head 11, a bolt cap 13 is provided on the bolt column 1, an internal thread is provided on the inner wall of the bolt cap 13, and the external thread and the internal thread are installed by being butt-jointed through threads. First knobs 14 are fixed at both ends of the bolt head 11, second knobs 17 are fixed at both ends of the outer wall of the bolt cap 13, an annular groove 15 is provided at one side end of the bolt head 11, and a second sealing ring 16 is bonded and filled on the inner wall of the annular groove 15.

[0027] Furthermore, the bolt head 11 is a hexagonal structure. When used on an object that needs to be tightened strongly, an auxiliary operation can be carried out by a wrench.

[0028] Furthermore, both the first sealing ring 12 and the second sealing ring 16 are circular ring structures and are both made of water-swellable rubber materials. When the bolt column 1 penetrates the object and cooperates with the bolt cap 13, the sealing effect between the two and the object can be improved.

[0029] Furthermore, the bolt column 1, the bolt head 11 and the bolt cap 13 are all composed of an outer layer 2 and a base layer 21. The outer layer 2 is plated on the base layer 21. Through the combination of the double-layer structure, the overall protection of the bolt can be improved in some environments where wear or corrosion is likely to occur.

[0030] Furthermore, the outer layer 2 is made of nickel-plated material. The electroplated nickel layer has high stability in the air. Since metallic nickel has strong passivation ability, a very thin passivation film can be quickly formed on the surface, which can resist the abrasion of the atmosphere, alkali and certain acids. The hardness of the nickel plating layer is relatively high, which can improve the wear resistance of the surface of the product.

[0031] Furthermore, the base layer 21 is made of stainless steel material and has sufficient hardness. At the same time, when the outer layer 2 is damaged, the base layer 21 itself also has a certain corrosion resistance ability.

[0032] When this embodiment is in use: corresponding knobs are respectively provided on the bolt head 11 and the bolt nut 13. Workers can operate the knobs with both hands to achieve the threaded docking of the bolt nut 13 and the bolt column 1, which is simple and convenient and can be completed without tools.

[0033] The bolt column 1, the bolt head 11 and the bolt nut 13 are all composed of double-layer materials, which have sufficient strength and good wear and corrosion resistance effects at the same time.

[0034] Through the first sealing ring 12 on the bolt head 11 and the second sealing ring 16 on the bolt nut 13, when the bolt column 1 penetrates an object and docks with the bolt nut 13, sealing and reinforcement with the penetrated object can be achieved, and it is suitable for use in waterproof or liquid environments.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant bolt with a bolt cap, comprising a bolt column (1), characterized in that: The outer wall of the bolt column (1) is provided with an external thread, the end of the bolt column (1) is welded with a bolt head (11), one side of the bolt head (11) is bonded with a first sealing ring (12), the bolt column (1) is provided with a bolt cap (13), the inner wall of the bolt cap (13) is provided with an internal thread, the external thread and the internal thread are butt-jointed and installed with each other through threads, both ends of the bolt head (11) are fixed with a first knob (14), both ends of the outer wall of the bolt cap (13) are fixed with a second knob (17), one end of the bolt head (11) is provided with an annular groove (15), and the inner wall of the annular groove (15) is bonded and filled with a second sealing ring (16).

2. The wear-resistant bolt with a bolt cap according to claim 1, characterized in that: The bolt head (11) is a hexagonal structure.

3. The wear-resistant bolt with a bolt cap according to claim 1, characterized in that: The first sealing ring (12) and the second sealing ring (16) are both circular ring structures and are both made of water-swellable rubber material.

4. The wear-resistant bolt with a bolt cap according to claim 1, characterized in that: The bolt column (1), the bolt head (11) and the bolt cap (13) are all composed of an outer layer (2) and a base layer (21), and the outer layer (2) is plated on the base layer (21).

5. The wear-resistant bolt with a bolt cap according to claim 4, characterized in that: The outer layer (2) is made of nickel-plated material.

6. The wear-resistant bolt with a bolt cap according to claim 5, characterized in that: The base layer (21) is made of stainless steel.

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