Integrated extrusion forming special-shaped bolt

Abstract

The utility model relates to the related technical field of special-shaped bolts, in particular to an integrated extrusion forming special-shaped bolt which comprises a screw rod and a bolt head, a threaded groove is formed in the surface of the screw rod, the bolt head is arranged at the other end of the screw rod, a protective sleeve is arranged on the surface of the bolt head in a sleeved mode, a groove is formed in one side of the surface of the bolt head, and the protective sleeve is arranged in the groove. A groove is formed in the bolt head, a screwing block is arranged in the groove, a through groove is formed in one side of the surface of the screwing block, a screwing groove is formed in the screwing block, and the surface of the bolt head is coated with a coating. According to the integrated extrusion forming special-shaped bolt, the screw rod and the bolt head are formed in an integrated cold extrusion mode, the production efficiency is improved, through the arrangement of the screwing block and the screwing groove, when the special-shaped bolt needs to be disassembled and assembled in the using process, the special-shaped bolt can be disassembled and assembled in a proper mode according to needs, and the labor intensity of workers is reduced. The problem that a large amount of time and energy need to be consumed when the special-shaped bolt cannot be disassembled and assembled in a single disassembling and assembling mode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to special-shaped bolts, in particular to an integrated extrusion-formed special-shaped bolt. Background Art

[0002] One-piece extrusion molding is a manufacturing process that obtains products with specific properties and shapes by extruding materials into the desired shape in a mold at one time. Special-shaped bolts are fasteners with special shapes or specifications that are different from conventional bolts. Special-shaped bolts have the characteristics of unique shape, customization and specific functions. In some special machinery, equipment or structures, they are used to achieve fastening connections in special parts. Special-shaped bolts usually require higher processing accuracy and process level to ensure that their size, shape and performance meet the requirements. Special-shaped bolts play an important role in some specific fields and complex engineering applications. They provide effective solutions for various special fastening needs. Therefore, one-piece extrusion-molded special-shaped bolts are particularly needed.

[0003] However, the existing special-shaped bolts are mainly manufactured by split molding, and the head and the rod are combined, connected and fixed by welding and other methods. They have great defects in structural strength and air tightness, low yield rate and high production cost.

[0004] To solve the above problems, after searching, the patent with announcement number CN219317388U discloses an integral extruded special-shaped bolt, which states that "the special-shaped bolt includes a rod and a head, a groove is provided in the head, and a hexagonal assembly groove is provided at the bottom of the groove. A fitting ring is provided at the end of the head, and a glue-coated surface is provided on the back of the fitting ring. Compared with the prior art, the present application has the following beneficial effects: the rod and the head are formed by integral cold extrusion, which improves production efficiency, does not require welding, has no airtight defects, and greatly improves product quality and reliability. A glue-coated surface is provided, which is fixed by a dual connection method of thread and adhesive, effectively preventing the bolt from loosening". Although the rod and the head are formed by integral cold extrusion, which improves production efficiency, does not require welding, has no airtight defects, and greatly improves product quality and reliability, the head of the special-shaped bolt only provides one way to disassemble and assemble the bolt. When this method cannot disassemble and assemble the special-shaped bolt, it takes more time and effort to disassemble and assemble the special-shaped bolt.

[0005] In view of this, an in-depth study was conducted on the above-mentioned issues, which led to the present case. Utility Model Content

[0006] The purpose of the utility model is to provide an integral extruded special-shaped bolt to solve the existing special-shaped bolts proposed in the above-mentioned background technology. The special-shaped bolts are mainly manufactured by split molding, and the head and the rod are combined, connected and fixed by welding and other methods. They have great defects in structural strength and airtightness, low yield rate and high production cost.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated extruded special-shaped bolt, comprising a screw and a bolt head, a limiting block is provided at one end of the screw, a thread groove is provided on the surface of the screw, a bolt head is provided at the other end of the screw, a protective cover is provided on the surface of the bolt head, a groove is provided on one side of the surface of the bolt head, a twisting block is provided inside the groove, a through groove is provided on one side of the surface of the twisting block, a twisting groove is provided inside the twisting block, and the surface of the bolt head is coated with a coating.

[0008] Preferably, the surface of one end of the screw rod close to the limiting block is a smooth surface.

[0009] Preferably, the limit block is a conical block, and the cross section of one end of the limit block is the same as the cross section size of the screw.

[0010] Preferably, the protective cover is made of rubber.

[0011] Preferably, the twisting block is a regular hexagonal block.

[0012] Preferably, the twisting groove is a cross-shaped groove.

[0013] Preferably, the coating is evenly coated on the surface of the bolt head, and the coating is made of epoxy resin.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the one-piece extruded special-shaped bolt, the screw rod and the bolt head are formed by one-piece cold extrusion, which improves the production efficiency. Through the setting of the twisting block and the twisting groove, when the special-shaped bolt needs to be disassembled and assembled during use, a suitable method can be selected according to needs to disassemble and assemble the special-shaped bolt, avoiding the problem of a single disassembly and assembly method failing to disassemble and assemble the special-shaped bolt and requiring a lot of time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the side view of the appearance structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bolt head and the twisting block cooperating with each other in the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the bolt head of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure in which the bolt head and the coating cooperate with each other in the utility model.

[0019] In the figure: 1. screw; 2. limit block; 3. thread groove; 4. bolt head; 5. protective cover; 6. groove; 7. twisting block; 8. through groove; 9. twisting groove; 10. coating. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: an integrated extruded special-shaped bolt, comprising a screw rod 1 and a bolt head 4, a limiting block 2 is arranged at one end of the screw rod 1, a thread groove 3 is opened on the surface of the screw rod 1, a bolt head 4 is arranged at the other end of the screw rod 1, a protective cover 5 is arranged on the surface of the bolt head 4, a groove 6 is opened on one side of the surface of the bolt head 4, a twisting block 7 is arranged inside the groove 6, a through groove 8 is opened on one side of the surface of the twisting block 7, a twisting groove 9 is opened inside the twisting block 7, and the surface of the bolt head 4 is coated with a coating 10.

[0022] Furthermore, the surface of one end of the screw rod 1 close to the limiting block 2 is a smooth surface. Through the arrangement of the screw rod 1, when in use, the screw rod 1 passes through the object to be fixed and can stably fix it.

[0023] Furthermore, the limit block 2 is a conical block, and the cross-section of one end of the limit block 2 is the same as the cross-section size of the screw 1. Through the setting of the limit block 2, when in use, the limit block 2 first penetrates the object to be fixed so that the screw 1 can be limited, which facilitates the subsequent operation of tightening the bolt head 4.

[0024] Furthermore, the protective cover 5 is made of rubber. Through the setting of the protective cover 5, when in use, the protective cover 5 can shield the surface of the bolt head 4 to prevent impurities from accumulating inside the groove 6 opened on the surface of the bolt head 4.

[0025] Furthermore, the twisting block 7 is a regular hexagonal block. Through the setting of the twisting block 7, when in use, the regular hexagonal twisting block 7 can conveniently twist the bolt head 4, thereby facilitating the disassembly and assembly of the screw rod 1.

[0026] Furthermore, the twisting groove 9 is a cross-shaped groove. Through the setting of the twisting groove 9, the cross-shaped twisting groove 9 can provide another way to disassemble and assemble the screw rod 1.

[0027] Furthermore, the coating 10 is evenly coated on the surface of the bolt head 4. The coating 10 is made of epoxy resin. Through the setting of the coating 10, when in use, the coating 10 is evenly coated on the surface of the bolt head 4 to perform rust-proof treatment on the bolt head 4, thereby preventing the bolt head 4 from rusting and causing difficulty in disassembling the screw rod 1.

[0028] Working principle: first, insert the limit block 2 into the object to be assembled, and then rotate the twisting block 7. At this time, the twisting block 7 drives the bolt head 4 to rotate, so that the screw 1 is screwed into the interior of the object through the thread groove 3, and then the protective cover 5 is put on the surface of the bolt head 4. The screw 1 can be taken out from the inside of the object by reverse operation, and the bolt can be screwed out by inserting the corresponding cross screwdriver into the twisting groove 9.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integral extruded special-shaped bolt, comprising a screw rod (1) and a bolt head (4), characterized in that: A limit block (2) is provided at one end of the screw rod (1), a thread groove (3) is provided on the surface of the screw rod (1), a bolt head (4) is provided at the other end of the screw rod (1), a protective sleeve (5) is provided on the surface of the bolt head (4), a groove (6) is provided on one side of the surface of the bolt head (4), a twisting block (7) is provided inside the groove (6), a through groove (8) is provided on one side of the surface of the twisting block (7), a twisting groove (9) is provided inside the twisting block (7), and a coating (10) is coated on the surface of the bolt head (4).

2. The one-piece extruded special-shaped bolt according to claim 1, characterized in that: The surface of one end of the screw rod (1) close to the limiting block (2) is a smooth surface.

3. The one-piece extruded special-shaped bolt according to claim 1, characterized in that: The limit block (2) is a conical block, and the cross section of one end of the limit block (2) has the same size as the cross section of the screw rod (1).

4. The one-piece extruded special-shaped bolt according to claim 1, characterized in that: The protective cover (5) is made of rubber.

5. The one-piece extruded special-shaped bolt according to claim 1, characterized in that: The twisting block (7) is a regular hexagonal block.

6. The one-piece extruded special-shaped bolt according to claim 1, characterized in that: The twisting groove (9) is a cross-shaped groove.

7. The one-piece extruded special-shaped bolt according to claim 1, characterized in that: The coating (10) is evenly coated on the surface of the bolt head (4), and the coating (10) is made of epoxy resin.

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