Anti-loosening positioning bolt

Abstract

The utility model relates to anti -loosening positioning bolt technical field discloses a kind of anti-loosening positioning bolts, including bolt main body, bolt main body outer wall is equipped with gasket one, bolt main body outer wall is connected with nut, the gasket two is arranged at the top of nut, the gasket two inner wall is equipped in the bolt main body outer wall, the anti-loosening assembly is arranged in the bolt main body, recess is set up in the bolt main body inside, the positioning assembly is arranged in the nut inside, the anti-loosening assembly includes anti-loosening block and limit plate, the anti-loosening block outer wall slidingly connects in the bolt main body inside. In the utility model, by pressing anti-loosening block, it drives limit plate to extrude spring one to bolt main body inside, then nut is screwed into the thread on the surface of bolt main body, anti-loosening block is loosened at this time, spring one releases elastic force and makes it reset, the protruding part of anti-loosening block can block nut from separating from bolt main body, to reach the effect of preventing nut loosening and falling off.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening positioning bolt technology, and in particular to an anti-loosening positioning bolt. Background Technology

[0002] In the field of mechanical connections, bolts are the most widely used basic fasteners, playing a crucial role in connection and fixation in various scenarios such as industrial equipment, building structures, and transportation vehicles. The quality of their connection performance not only directly affects the normal operating efficiency of the equipment, but also is closely related to the safety and service life of the overall structure. As modern industry continues to increase its requirements for the precision and stability of equipment operation, the connection reliability of traditional bolts under complex working conditions is gradually becoming unable to meet the needs.

[0003] In the existing technology, ordinary bolts are usually composed of a screw and a nut, which rely on the friction between the threads to achieve connection and fixation. During assembly, the nut is tightened with a wrench to generate clamping force between the bolt and the connected parts. The frictional resistance of the thread surface is used to prevent the nut from loosening. Some bolts are equipped with ordinary washers to increase the contact area and reduce pressure, thereby helping to enhance the stability of the connection.

[0004] However, ordinary bolts in the existing technology have obvious defects in practical applications. When equipment operates under conditions of vibration, impact or variable load for a long time, the frictional resistance between the threads will gradually decrease over time, causing the originally tightened nut to loosen easily. This loosening is not instantaneous, but a gradual process. Initially, there is only a slight increase in the gap. As the usage time is extended, the nut will continue to loosen and eventually completely detach from the bolt. This will not only cause the clamping force between the connected parts to be completely lost, affecting the normal function of the equipment, but also solve the above problems by proposing an anti-loosening positioning bolt. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-loosening positioning bolt, which aims to improve the problem that traditional bolts in the prior art are prone to loosening under conditions such as vibration and impact, resulting in the nut coming off the bolt.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-loosening positioning bolt, comprising a bolt body, a washer first sleeved on the outer wall of the bolt body, a nut threadedly connected to the outer wall of the bolt body, a washer second disposed on the top of the nut, the inner wall of the washer second sleeved on the outer wall of the bolt body, an anti-loosening component disposed inside the bolt body, a groove formed inside the bolt body, and a positioning component disposed inside the nut;

[0007] The anti-loosening component includes an anti-loosening block and a limiting plate. The outer wall of the anti-loosening block is slidably connected to the inside of the bolt body. The side wall of the limiting plate is fixedly connected to one side of the anti-loosening block. The outer wall of the limiting plate is slidably connected to the inside of the bolt body. A fixing plate is fixedly connected inside the bolt body. A spring is provided on the side wall of the limiting plate. One end of the spring is fixedly connected to the side wall of the limiting plate, and the other end of the spring is fixedly connected to the side wall of the fixing plate.

[0008] As a further description of the above technical solution:

[0009] The positioning component includes a hollow column and a locking column. The outer wall of the hollow column is fixedly connected to the inside of the nut, and the outer wall of the locking column is slidably connected to the inside of the hollow column.

[0010] As a further description of the above technical solution:

[0011] The groove has a locking hole inside, and the locking post engages with the locking hole.

[0012] As a further description of the above technical solution:

[0013] A limiting ring is fixedly connected to the side wall of the locking post, and the outer wall of the limiting ring is slidably connected inside the hollow post.

[0014] As a further description of the above technical solution:

[0015] The limiting ring has a sliding column fixedly connected to its side wall, and the outer wall of the sliding column is slidably connected to the inside of the hollow column.

[0016] As a further description of the above technical solution:

[0017] A connecting rod is fixedly connected to the outer wall of the sliding column, and the outer wall of the connecting rod is slidably connected inside the hollow column.

[0018] As a further description of the above technical solution:

[0019] A pull block is fixedly connected to one end of the sliding column, and a limiting groove is opened at one end of the hollow column.

[0020] As a further description of the above technical solution:

[0021] A second spring is sleeved on the outer wall of the sliding column. One end of the second spring is fixedly connected to the side wall of the limiting ring, and the other end of the second spring is in contact with the inside of the hollow column.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by pressing the anti-loosening block, the limiting plate is pushed into the bolt body to compress the spring. Then, the nut is screwed into the thread on the surface of the bolt body. At this time, the anti-loosening block is released, and the spring releases its elastic force to reset it. The protruding part of the anti-loosening block can prevent the nut from falling off the bolt body, thereby achieving the effect of preventing the nut from loosening and falling off. This solves the problem that traditional bolts are prone to loosening under vibration, impact and other working conditions, which leads to the nut falling off the bolt, and improves the stability and reliability of the bolt connection.

[0024] 2. In this utility model, after the nut is tightened to the appropriate position, the pull block is pulled to disengage the connecting rod from the limiting groove. Then, the pull block is rotated to drive the sliding column and the connecting rod to rotate. At this time, the second spring releases its elastic potential energy, which drives the limiting ring, the locking column, the sliding column and the connecting rod to reset, so that the locking column is engaged in the corresponding locking hole to form a positioning, thereby achieving the effect of accurately locking the nut position. This solves the problem that the nut is prone to displacement and connection position shift when traditional bolts are used for a long time or affected by external forces, and improves the accuracy of bolt connection positioning. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an anti-loosening positioning bolt proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of an anti-loosening block for an anti-loosening positioning bolt proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a nut for an anti-loosening positioning bolt proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a hollow column for an anti-loosening positioning bolt proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a locking post for an anti-loosening positioning bolt proposed in this utility model.

[0030] Legend:

[0031] 1. Bolt body; 2. Washer 1; 3. Nut; 4. Washer 2; 5. Anti-loosening block; 6. Limiting plate; 7. Fixing plate; 8. Spring 1; 9. Groove; 10. Locking hole; 11. Hollow column; 12. Locking post; 13. Sliding post; 14. Limiting ring; 15. Connecting rod; 16. Pull block; 17. Limiting groove; 18. Spring 2. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an anti-loosening positioning bolt, comprising a bolt body 1, which provides the main connection structure and bears the load. A washer 2 is fitted on the outer wall of the bolt body 1 to distribute the pressure of the nut 3 and protect the surface of the connecting parts. A nut 3 is threaded onto the outer wall of the bolt body 1, and the nut 3 is used to apply preload to achieve a tight connection. A washer 4 is provided on the top of the nut 3 to increase frictional resistance and prevent loosening, achieving a tight connection. An anti-loosening component is fitted onto the outer wall of the bolt body 1. The bolt body 1 contains an anti-loosening component to prevent the nut 3 from accidentally loosening. A groove 9 is provided inside the bolt body 1 to accommodate the anti-loosening component and provide movement space. A positioning component is provided inside the nut 3 to fix the position of the nut 3.

[0034] The anti-loosening component includes an anti-loosening block 5 and a limiting plate 6. The anti-loosening block 5 is used to prevent the nut 3 from rotating, achieving an active anti-loosening effect. Its outer wall is slidably connected inside the bolt body 1. The limiting plate 6 is used to limit the movement range of the anti-loosening block 5. Its side wall is fixedly connected to one side of the anti-loosening block 5, and its outer wall is slidably connected inside the bolt body 1. A fixing plate 7 is fixedly connected inside the bolt body 1. The fixing plate 7 is used to support the spring 8. The side wall of the limiting plate 6 is provided with the spring 8. The spring 8 is used to provide the restoring force of the anti-loosening block 5. One end of the spring 8 is fixedly connected to the side wall of the limiting plate 6, and the other end is fixedly connected to the side wall of the fixing plate 7. It is used to push the anti-loosening block 5 to reset, achieving the effect of continuously maintaining the anti-loosening state.

[0035] Reference Figures 3-5The positioning assembly includes a hollow column 11 and a locking column 12. The hollow column 11 guides the movement of the locking column 12, and its outer wall is fixedly connected to the inside of the nut 3. The locking column 12 engages with the locking hole 10 to lock the position, and its outer wall is slidably connected to the inside of the hollow column 11. The locking hole 10 is provided inside the groove 9, and the locking hole 10 engages with the locking column 12 to achieve positioning. The locking column 12 and the locking hole 10 engage to fix the position, achieving the effect of locking the position of the nut 3. A limit ring 14 is fixedly connected to the side wall of the locking column 12, and the limit ring 14 is used to limit the stroke of the locking column 12. Its outer wall is slidably connected to the inside of the hollow column 11. A sliding column 13 is fixedly connected to the side wall of the limit ring 14, and the sliding column 13 is used to... To transmit the operating force, its outer wall is slidably connected to the inside of the hollow column 11. A connecting rod 15 is fixedly connected to the outer wall of the sliding column 13. The connecting rod 15 is used to switch the locking state. Its outer wall is slidably connected to the inside of the hollow column 11. A pull block 16 is fixedly connected to one end of the sliding column 13. The pull block 16 is used for manual operation to achieve the effect of manual unlocking. A limiting groove 17 is opened at one end of the hollow column 11. The limiting groove 17 is used to limit the movement trajectory of the connecting rod 15. A spring 18 is sleeved on the outer wall of the sliding column 13. One end of the spring 18 is fixedly connected to the side wall of the limiting ring 14, and the other end is in contact with the inside of the hollow column 11. The spring 18 is used to provide the reset force of the locking column 12 to achieve the effect of automatic locking.

[0036] Working principle: When a fastening connection is required, first press the anti-loosening block 5 to move it into the bolt body 1. The anti-loosening block 5 drives the limiting plate 6 to compress the spring 8. At this time, the anti-loosening block 5 is completely retracted into the bolt body 1, making room for the installation of the nut 3. After the nut 3 is screwed into the predetermined position along the thread of the bolt body 1, the spring 8 releases its stored elastic potential energy, pushing the limiting plate 6 and the anti-loosening block 5 to reset outward. After resetting, part of the anti-loosening block 5 protrudes from the surface of the bolt body 1. When the nut 3 tends to loosen under vibration or impact, the protruding part of the anti-loosening block 5 will block the rotation of the nut 3, thereby effectively preventing the nut 3 from loosening. After the nut 3 is tightened to the predetermined position, the operator... Pulling the pull block 16 outward causes the sliding column 13 and connecting rod 15 to move axially along the hollow column 11, disengaging the connecting rod 15 from the limiting groove 17. Simultaneously, the second spring 18 is compressed. At this point, the pull block 16 can be rotated, causing the sliding column 13 to rotate the locking column 12 to align with the locking hole 10. After releasing the pull block 16, the second spring 18 pushes the limiting ring 14 to reset, thereby causing the locking column 12 to engage in the corresponding locking hole 10. The engagement of the locking column 12 and the locking hole 10 forms a lock, restricting the movement of the nut 3. The sliding of the limiting ring 14 within the hollow column 11 ensures the accurate movement trajectory of the locking column 12, while the limiting groove 17 constrains the movement range of the connecting rod 15, ensuring the reliability of the positioning operation.

Claims

1. An anti-loosening positioning bolt, comprising a bolt body (1), characterized in that: The outer wall of the bolt body (1) is fitted with a washer (2), the outer wall of the bolt body (1) is threaded with a nut (3), the top of the nut (3) is provided with a washer (4), the inner wall of the washer (4) is fitted on the outer wall of the bolt body (1), the bolt body (1) is provided with an anti-loosening component, the bolt body (1) is provided with a groove (9), and the nut (3) is provided with a positioning component. The anti-loosening component includes an anti-loosening block (5) and a limiting plate (6). The outer wall of the anti-loosening block (5) is slidably connected to the inside of the bolt body (1). The side wall of the limiting plate (6) is fixedly connected to one side of the anti-loosening block (5). The outer wall of the limiting plate (6) is slidably connected to the inside of the bolt body (1). A fixing plate (7) is fixedly connected inside the bolt body (1). A spring (8) is provided on the side wall of the limiting plate (6). One end of the spring (8) is fixedly connected to the side wall of the limiting plate (6), and the other end of the spring (8) is fixedly connected to the side wall of the fixing plate (7).

2. The anti-loosening positioning bolt according to claim 1, characterized in that: The positioning component includes a hollow column (11) and a locking column (12). The outer wall of the hollow column (11) is fixedly connected to the inside of the nut (3), and the outer wall of the locking column (12) is slidably connected to the inside of the hollow column (11).

3. The anti-loosening positioning bolt according to claim 2, characterized in that: The groove (9) has a locking hole (10) inside, and the locking post (12) engages with the locking hole (10).

4. The anti-loosening positioning bolt according to claim 2, characterized in that: The side wall of the locking post (12) is fixedly connected to a limiting ring (14), and the outer wall of the limiting ring (14) is slidably connected inside the hollow post (11).

5. The anti-loosening positioning bolt according to claim 4, characterized in that: The limiting ring (14) has a sliding column (13) fixedly connected to its side wall, and the outer wall of the sliding column (13) is slidably connected to the inside of the hollow column (11).

6. The anti-loosening positioning bolt according to claim 5, characterized in that: A connecting rod (15) is fixedly connected to the outer wall of the sliding column (13), and the outer wall of the connecting rod (15) is slidably connected inside the hollow column (11).

7. The anti-loosening positioning bolt according to claim 5, characterized in that: One end of the sliding column (13) is fixedly connected to a pull block (16), and one end of the hollow column (11) is provided with a limiting groove (17).

8. The anti-loosening positioning bolt according to claim 5, characterized in that: A second spring (18) is sleeved on the outer wall of the sliding column (13). One end of the second spring (18) is fixedly connected to the side wall of the limiting ring (14), and the other end of the second spring (18) is in contact with the inside of the hollow column (11).

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