Rear-mounted anti-loosening type inner hexagonal round head bolt

Abstract

The utility model discloses a rear-mounted anti-loosening inner hexagonal round head bolt which is characterized in that a bolt is fixedly connected to the lower surface of a bolt head, a friction plate is fixedly connected to the lower surface of the bolt head, an inclined plate is fixedly connected to the lower surface of the friction plate, friction teeth are fixedly connected to the lower surface of the inclined plate, an inner six hole is formed in the bolt head, and an open hole is formed in the bolt head. A rotating shaft is rotationally connected into the open hole, a cover plate is fixedly connected to the outer surface of the rotating shaft, the screw head, the friction plate, the inclined plate and the friction teeth are matched, the inclined plate is pressed downwards through the screw head to be flattened, the friction teeth make contact with a workpiece, the anti-loosening performance of the bolt is improved, whether the bolt is installed in place or not can be detected, and it is helped to ensure that the bolt is installed correctly; through cooperation of the open hole, the rotating shaft and the cover plate, the inner six holes can be covered after installation, damage of external environmental factors such as dust and water to key parts is prevented, the service life of the whole bolt is prolonged, and the bolt is suitable for severe environments.

Description

Technical Field

[0001] The utility model relates to the technical field of hexagon socket head cap screws, and particularly relates to a rear anti-loosening hexagon socket head cap screw. Background Art

[0002] Bolts are generally divided into external hexagon bolts and internal hexagon bolts according to the structure of the use environment. Bolts with a performance grade of 10.9 or above are high-strength bolts. Since bolts are directly connected to mechanical components and can play a connecting and fastening role without the need for nuts, external hexagon bolts are restricted to a certain extent in use because of their poor connection strength and difficulty in matching with current original parts. Among them, internal hexagon bolts are widely used in mechanical equipment or structures with high requirements for dimensional accuracy and performance. In the industrial fields of mechanical equipment such as speed reducers, machine tools, oil pumps, and injection molding machines, internal hexagon bolts are usually used to cooperate in fastening various components. In the existing anti-loosening technology, the anti-loosening performance of bolts is achieved by applying anti-loosening glue in the screw holes. However, the anti-loosening performance of this kind of bolt decreases significantly in the later stage of use. For example, China has published "a bolt" with the application number: "CN202222486495.6". Through the cooperation of the bolt body, connection groove, limiting groove, sliding groove, oil injection groove, oil outlet hole, auxiliary hole, operating column, and limiting plate, it can lubricate the surface of the bolt body and the installed threaded hole, thus facilitating the disassembly of the bolt body by the staff. However, it cannot increase the friction during installation, improve the anti-loosening performance of the bolt, it cannot detect whether the bolt is installed in place, and it cannot cover the internal hexagon hole after installation to avoid rusting due to long-term use, resulting in the inability to use an internal hexagon wrench for disassembly in the later stage. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a rear anti-loosening hexagon socket head cap screw. Through the cooperation of the screw head, friction plate, inclined plate, and friction teeth, when the screw head presses down the inclined plate to flatten it, the friction teeth contact the workpiece, which can increase the friction during installation, improve the anti-loosening performance of the bolt, and can detect whether the bolt is installed in place to help ensure the correct installation of the bolt; through the cooperation of the opening, rotating shaft, and cover plate, it can cover the internal hexagon hole after installation to avoid rusting due to long-term use, resulting in the inability to use an internal hexagon wrench for disassembly in the later stage, and can prevent damage to key parts by external environmental factors such as dust and water, extend the service life of the entire bolt, and is suitable for harsh environments.

[0004] The present utility model also provides a rear anti-loosening internal hexagonal round head bolt having the above-described structure, including: a screw head, a bolt is fixedly connected to the lower surface of the screw head, a friction plate is fixedly connected to the lower surface of the screw head, an inclined plate is fixedly connected to the lower surface of the friction plate, friction teeth are fixedly connected to the lower surface of the inclined plate, an internal hexagonal hole is provided on the screw head, an opening is provided on the screw head, a rotating shaft is rotatably connected in the opening, a cover plate is fixedly connected to the outer surface of the rotating shaft. Through the cooperation of the screw head, the friction plate, the inclined plate and the friction teeth, when the screw head presses down to flatten the inclined plate, the friction teeth are in contact with the workpiece, which can increase the friction force during installation, improve the anti-loosening performance of the bolt, and can detect whether the bolt is installed in place to help ensure the correct installation of the bolt; through the cooperation of the opening, the rotating shaft and the cover plate, the internal hexagonal hole can be covered after installation to avoid rusting due to long-term use, resulting in the inability to use an internal hexagonal wrench for disassembly in the later stage, and can prevent damage to key parts by external environmental factors such as dust and water, and extend the service life of the entire bolt, which is suitable for harsh environments.

[0005] According to the rear anti-loosening internal hexagonal round head bolt of the present utility model, the inclined plate is movably connected to other inclined plates, and the friction teeth are in an inverted cone shape, which can increase the friction force during installation, improve the anti-loosening performance of the bolt, and while enhancing the anti-loosening performance, can also ensure the reliability of the bolt installation.

[0006] According to the rear anti-loosening internal hexagonal round head bolt of the present utility model, the rotating shaft is movably connected to the screw head, and the cover plate is movably connected to the screw head, which can cover the internal hexagonal hole after installation to avoid rusting due to long-term use, resulting in the inability to use an internal hexagonal wrench for disassembly in the later stage, and can well protect the key parts and ensure the stability and reliability of the bolt.

[0007] According to the rear anti-loosening internal hexagonal round head bolt of the present utility model, the cover plate is movably connected to the internal hexagonal hole, and a sealing ring is fixedly connected to the lower surface of the cover plate, which can improve the sealing performance.

[0008] According to the rear anti-loosening internal hexagonal round head bolt of the present utility model, a label plate is fixedly connected to the upper surface of the cover plate, and the models of the screw head and the bolt are set on the label plate, which can help the staff quickly find the suitable tools.

[0009] According to the rear anti-loosening internal hexagonal round head bolt of the present utility model, a retaining strip is fixedly connected to the outer surface of the screw head, and the retaining strip is movably connected to the cover plate, which can limit the position of the cover plate, prevent accidental sliding, can improve the safety of the device, prevent accidents, and ensure the reliability of the device during use.

[0010] A rear anti-loosening internal hexagonal round head bolt according to the present utility model, wherein the material of the inclined plate is an aluminum-magnesium alloy sheet, which can improve the toughness of the material and prevent fracture, and the material of the cover plate is an aluminum alloy sheet, which can improve the strength of the material.

[0011] A rear anti-loosening internal hexagonal round head bolt according to the present utility model, wherein the friction plate is fixedly connected to the bolt, which can improve the stability of the device.

[0012] Beneficial effects

[0013] 1. Compared with the prior art, this new type of rear anti-loosening internal hexagonal round head bolt, through the cooperation of the screw head, friction plate, inclined plate and friction teeth, by pressing down the inclined plate with the screw head to flatten it, making the friction teeth contact the workpiece, can increase the friction force during installation, improve the anti-loosening performance of the bolt, and can detect whether the bolt is installed in place to help ensure the correct installation of the bolt.

[0014] 2. Compared with the prior art, this new type of rear anti-loosening internal hexagonal round head bolt, through the cooperation of the opening, rotating shaft and cover plate, can cover the internal hexagonal hole after installation, avoid rusting due to long-term use, resulting in the inability to use an internal hexagonal wrench for disassembly in the later stage, prevent damage to key parts by external environmental factors such as dust and water, extend the service life of the entire bolt, and is suitable for harsh environments. Description of the drawings

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a side view structure diagram of the rear anti-loosening internal hexagonal round head bolt of the present utility model;

[0017] Figure 2 It is a bottom view structure diagram of the rear anti-loosening internal hexagonal round head bolt of the present utility model;

[0018] Figure 3 It is a schematic diagram of the screw head connection structure of the rear anti-loosening internal hexagonal round head bolt of the present utility model;

[0019] Figure 4 It is a schematic diagram of the rotating shaft connection structure of the rear anti-loosening internal hexagonal round head bolt of the present utility model.

[0020] Legend description:

[0021] 1. Screw head; 2. Bolt; 3. Friction plate; 4. Inclined plate; 5. Friction teeth; 6. Internal hexagonal hole; 7. Opening; 8. Rotating shaft; 9. Cover plate; 10. Label plate; 11. Stop bar. Specific implementation manners

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , in an embodiment of the present utility model, a rear anti-loosening internal hexagonal round head bolt includes: a screw head 1 for supporting the entire device. A bolt 2 is fixedly connected to the lower surface of the screw head 1. A friction plate 3 is fixedly connected to the lower surface of the screw head 1 for supporting the friction structure. An inclined plate 4 is fixedly connected to the lower surface of the friction plate 3 for fixedly supporting the friction teeth 5 and the screw head 1 pressing down the inclined plate 4. A friction tooth 5 is fixedly connected to the lower surface of the inclined plate 4 for increasing the friction force. An internal hexagonal hole 6 is provided on the screw head 1 for rotating the bolt 2 through an internal hexagonal tool. An opening 7 is provided on the screw head 1 for placing and supporting a rotating shaft 8. A rotating shaft 8 is rotatably connected in the opening 7 for rotating a cover plate 9. A cover plate 9 is fixedly connected to the outer surface of the rotating shaft 8 for protecting the internal hexagonal hole 6.

[0024] The inclined plate 4 is movably connected to other inclined plates 4 for the screw head 1 to press down the inclined plate 4 and flatten the inclined plate 4. The friction tooth 5 is in an inverted cone shape for increasing the friction force. The rotating shaft 8 is movably connected to the screw head 1 for supporting the rotating shaft 8. The cover plate 9 is movably connected to the screw head 1 and the cover plate 9 is movably connected to the internal hexagonal hole 6 for the cover plate 9 to move. A sealing ring is fixedly connected to the lower surface of the cover plate 9 for sealing. A label plate 10 is fixedly connected to the upper surface of the cover plate 9. The models of the screw head 1 and the bolt 2 are set on the label plate 10 for indicating the models of the screw head 1 and the bolt 2. A retaining strip 11 is fixedly connected to the outer surface of the screw head 1. The retaining strip 11 is movably connected to the cover plate 9 for restricting the position of the cover plate 9. The material of the inclined plate 4 is an aluminum-magnesium alloy sheet. The material of the cover plate 9 is an aluminum alloy sheet. The friction plate 3 is fixedly connected to the bolt 2 for fixing the friction plate 3.

[0025] Working principle: When in use, the bolt 2 is rotated through the internal hexagonal hole 6 on the screw head 1. Then, while rotating, the friction plate 3 squeezes the inclined plate 4 to flatten the inclined plate 4, so that the friction teeth 5 on the inclined plate 4 contact the workpiece to increase the friction. After installation, the cover plate 9 is rotated through the rotating shaft 8 in the opening 7, and the position of the cover plate 9 is fixed by the retaining strip 11, so that the cover plate 9 covers the internal hexagonal hole 6 on the screw head 1, and the models of the screw head 1 and the bolt 2 are displayed through the label plate 10.

[0026] The above has described in detail the embodiments of the present utility model in conjunction with the drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains, various changes can be made without departing from the gist of the present utility model.

Claims

1. A rear anti-loosening hexagon socket button head bolt, characterized in that, Comprising: A screw head (1), the lower surface of the screw head (1) is fixedly connected to a bolt (2), the lower surface of the screw head (1) is fixedly connected to a friction plate (3), the lower surface of the friction plate (3) is fixedly connected to an inclined plate (4), the lower surface of the inclined plate (4) is fixedly connected to friction teeth (5), the screw head (1) is provided with an internal hexagonal hole (6), the screw head (1) is provided with an opening (7), a rotating shaft (8) is rotatably connected in the opening (7), and a cover plate (9) is fixedly connected to the outer surface of the rotating shaft (8).

2. A rear anti-loosening internal hexagonal round head bolt according to claim 1, characterized in that, The inclined plate (4) is movably connected to other inclined plates (4), and the friction teeth (5) are in an inverted cone shape.

3. A rear anti-loosening internal hexagonal round head bolt according to claim 1, characterized in that, The rotating shaft (8) is movably connected to the screw head (1), and the cover plate (9) is movably connected to the screw head (1).

4. A rear anti-loosening internal hexagonal round head bolt according to claim 1, characterized in that, The cover plate (9) is movably connected to the internal hexagonal hole (6), and a sealing ring is fixedly connected to the lower surface of the cover plate (9).

5. A rear anti-loosening internal hexagonal round head bolt according to claim 1, characterized in that, A label plate (10) is fixedly connected to the upper surface of the cover plate (9), and the models of the screw head (1) and the bolt (2) are provided on the label plate (10).

6. A rear anti-loosening internal hexagonal round head bolt according to claim 1, characterized in that, A stop bar (11) is fixedly connected to the outer surface of the screw head (1), and the stop bar (11) is movably connected to the cover plate (9).

7. A rear anti-loosening internal hexagonal round head bolt according to claim 1, characterized in that, The inclined plate (4) is made of an aluminum-magnesium alloy sheet, and the cover plate (9) is made of an aluminum alloy sheet.

8. A rear-mounted anti-loosening hexagon socket button head bolt according to claim 1, characterized in that, The friction plate (3) is fixedly connected to the bolt (2).

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