Wear-resistant bolt

Abstract

The utility model discloses a wear-resistant bolt, and relates to the technical field of bolts. The device comprises a threaded rod, a nut is fixedly installed at the top end of the threaded rod, an inner hexagonal screw groove is formed in the nut, a protective cover is arranged on the outer side of the nut, a hexagonal clamping block is fixedly installed on the upper surface of the inner wall of the protective cover, and movable rods which are symmetrically distributed are movably arranged in the hexagonal clamping block. Supporting plates are fixedly mounted at the ends, away from each other, of the two movable rods, the supporting plates penetrate through the hexagonal clamping blocks, movable plates are fixedly arranged on the outer sides of the two movable rods, and clamping plates are rotationally arranged at the tops of the movable plates. By arranging the protective cover, the probability that impurities are attached to the inner hexagonal screw grooves can be greatly reduced, the service life of the nut is prolonged, meanwhile, the protective cover is convenient to disassemble, a worker can operate the nut conveniently, meanwhile, the protective cover can be matched with the inner hexagonal screw grooves of different sizes, and the use experience of the worker is improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to a wear-resistant bolt. Background Technology

[0002] Bolts are common mechanical fasteners, usually made of metal, with a cylindrical structure and external threads. They are mainly used to fasten two or more parts together with nuts to achieve the function of fastening and connecting. The head of the hex bolt is hexagonal with a circular groove in the middle, which can be tightened or loosened with an Allen wrench. This type of bolt is widely used in machinery manufacturing, construction and decoration, automobile repair and other fields. It has high strength, high rigidity and good surface quality, and can effectively withstand impact and vibration to ensure stable and reliable connection.

[0003] In existing technologies, the internal hexagonal socket head cap screw has its internal hexagonal socket groove exposed to the outside for a long time, which makes it easy for impurities in the air to adhere to the internal hexagonal socket groove, causing wear and affecting its use. Utility Model Content

[0004] To address the problem of impurities in the air easily adhering to the internal hexagonal screw groove, the purpose of this utility model is to provide a wear-resistant bolt.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a wear-resistant bolt, including a threaded rod, a nut fixedly installed at the top of the threaded rod, an internal hexagonal threaded groove inside the nut, a protective cover on the outside of the nut, a hexagonal locking block fixedly installed on the upper surface of the inner wall of the protective cover, symmetrically distributed movable rods movably arranged inside the hexagonal locking block, a support plate fixedly installed at the ends of the two movable rods that are far apart from each other, the support plate passing through the hexagonal locking block, a movable plate fixedly installed on the outside of the two movable rods, a locking plate rotatably installed on the top of the movable plate, a slot opened at the top of the protective cover, both movable plates passing through the slot, an mounting plate fixedly installed at the top of the protective cover, and evenly distributed locking grooves opened on the outside of the mounting plate, the locking plate and the locking grooves working together.

[0006] Preferably, a stabilizing plate is fixedly installed on each of the two movable plates on the side away from each other. The stabilizing plate is located in the slot. The top of the protective cover has symmetrically distributed cavities. The stabilizing plate and the cavities are used in conjunction.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. The protective cover provided in this application can greatly reduce the chance of impurities adhering to the internal hexagonal socket, thus extending the service life of the nut. At the same time, the protective cover is easy to remove, making it convenient for operators to operate. In addition, the protective cover can be adapted to internal hexagonal sockets of different sizes, improving the user experience for operators.

[0009] 2. This application, through the setting of a stabilizing plate and a cavity, allows the stabilizing plate to be driven into the cavity when the moving plate moves, thereby supporting the moving plate and improving its stability during movement. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the protective cover in this utility model.

[0013] Figure 3 This is a schematic diagram of the hexagonal card block in this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the movable plate in this utility model.

[0015] Figure 5 This is a schematic diagram of the support plate in this utility model.

[0016] In the diagram: 1. Threaded rod; 11. Nut; 12. Socket hexagonal threaded groove; 13. Protective cover; 14. Hexagonal locking block; 15. Movable rod; 16. Support plate; 17. Moving plate; 18. Locking plate; 19. Hollow groove; 191. Mounting plate; 192. Locking groove; 2. Stabilizing plate; 21. Cavity; 3. Support rod; 4. Protective pad; 5. Rotating rod; 6. Sealing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-5 As shown, this utility model provides a wear-resistant bolt, including a threaded rod 1, a nut 11 fixedly installed at the top of the threaded rod 1, an internal hexagonal threaded groove 12 opened inside the nut 11, a protective cover 13 provided on the outside of the nut 11, a hexagonal locking block 14 fixedly installed on the upper surface of the inner wall of the protective cover 13, symmetrically distributed movable rods 15 movably arranged inside the hexagonal locking block 14, a support plate 16 fixedly installed at the ends of the two movable rods 15 that are far apart from each other, the support plate 16 passing through the hexagonal locking block 14, a movable plate 17 fixedly installed on the outside of the two movable rods 15, a locking plate 18 rotatably provided on the top of the movable plate 17, a slot 19 opened at the top of the protective cover 13, both movable plates 17 passing through the slot 19, an mounting plate 191 fixedly installed at the top of the protective cover 13, a uniformly distributed locking groove 192 opened on the outside of the mounting plate 191, the locking plate 18 and the locking groove 192 are used in cooperation.

[0019] Stabilizing plates 2 are fixedly installed on the sides of the two movable plates 17 that are far apart from each other. The stabilizing plates 2 are located in the slots 19. The top of the protective cover 13 has symmetrically distributed cavities 21. The stabilizing plates 2 and the cavities 21 are used together.

[0020] A support rod 3 is fixedly installed on the inner wall of the empty groove 19. The support rod 3 passes through the two movable plates 17. By setting the support rod 3, the stability of the movable plate 17 is further improved.

[0021] A protective pad 4 is fixedly installed at the end of the support plate 16 away from the movable rod 15. The protective pad 4 is made of flexible material. The protective pad 4 is used to prevent wear on the internal hexagonal screw groove 12 and improve the service life of the nut 11.

[0022] A rotating rod 5 is rotatably inserted through the top of the movable plate 17. The rotating rod 5 is fixedly inserted through the card plate 18. By setting the rotating rod 5, the card plate 18 can be supported and rotated so that it can be inserted into the card slot 192.

[0023] A sealing ring 6 is fixedly installed between the protective cover 13 and the nut 11. By setting the sealing ring 6, the sealing performance between the protective cover 13 and the nut 11 is improved.

[0024] The number of slots 192 is eight, which allows the support plate 16 to fit more sizes of internal hexagonal screw slots 12, making it convenient for staff to use.

[0025] The bottom of the card plate 18 is arc-shaped to prevent the card plate 18 from being blocked by the moving plate 17 when rotating, so that it can rotate smoothly.

[0026] Working principle: In actual use, the hexagonal locking block 14 is inserted into the internal hexagonal screw groove 12 to fix the protective cover 13, thereby protecting the nut 11 and the internal hexagonal screw groove 12 from corrosion. When encountering a large internal hexagonal screw groove 12, the hexagonal locking block 14 is placed into the internal hexagonal screw groove 12, and then the moving plate 17 is moved towards the inner wall of the internal hexagonal screw groove 12. The moving plate 17 drives the movable rod 15 and the support plate 16 to move. When the support plate 16 and the inner wall of the internal hexagonal screw groove 12 are in contact and a certain pressure is applied, the locking plate 18 is rotated to lock into the locking groove 192, thus fixing the support plate 16 and supporting the protective cover 13. Through the set stabilizing plate 2 and cavity 21, when the moving plate 17 moves, it can drive the stabilizing plate 2 into the cavity 21, which can support the moving plate 17 and improve the stability of the moving plate 17 during movement.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A wear-resistant bolt, comprising a threaded rod (1), characterized in that: A nut (11) is fixedly installed at the top of the threaded rod (1). The nut (11) has an internal hexagonal threaded groove (12). A protective cover (13) is provided on the outside of the nut (11). A hexagonal locking block (14) is fixedly installed on the upper surface of the inner wall of the protective cover (13). Symmetrically distributed movable rods (15) are movably arranged inside the hexagonal locking block (14). A support plate (16) is fixedly installed at the ends of the two movable rods (15) that are far apart from each other. The support plate (16) passes through the hexagonal locking block. (14) A movable plate (17) is fixedly provided on the outer side of each of the two movable rods (15). A card plate (18) is rotatably provided on the top of the movable plate (17). A slot (19) is opened at the top of the protective cover (13). Both movable plates (17) pass through the slot (19). An installation plate (191) is fixedly installed at the top of the protective cover (13). A slot (192) is evenly distributed on the outer side of the installation plate (191). The card plate (18) and the slot (192) are used together.

2. The wear-resistant bolt as described in claim 1, characterized in that, Stabilizing plates (2) are fixedly installed on the two movable plates (17) on opposite sides. The stabilizing plates (2) are located in the slots (19). The top of the protective cover (13) has symmetrically distributed cavities (21). The stabilizing plates (2) and the cavities (21) are used together.

3. The wear-resistant bolt as described in claim 2, characterized in that, A support rod (3) is fixedly installed on the inner wall of the slot (19), and the support rod (3) passes through the two movable plates (17).

4. The wear-resistant bolt as described in claim 1, characterized in that, A protective pad (4) is fixedly installed at the end of the support plate (16) away from the movable rod (15), and the protective pad (4) is made of flexible material.

5. A wear-resistant bolt as described in claim 3, characterized in that, The top of the movable plate (17) is rotatably connected to a rotating rod (5), which is fixedly connected to the card plate (18).

6. A wear-resistant bolt as described in claim 2, characterized in that, A sealing ring (6) is fixedly installed between the protective cover (13) and the nut (11).

7. A wear-resistant bolt as described in claim 1, characterized in that, The number of the card slots (192) is eight.

8. A wear-resistant bolt as described in claim 5, characterized in that, The bottom of the card plate (18) is arc-shaped.

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