Anti-loose large hexagonal bolt

Abstract

This utility model discloses a large hexagonal bolt designed to prevent loosening, comprising a bolt, a nut, and an adjusting rod. The bolt has a through groove, with a retaining groove at the bottom of the groove that penetrates the bolt head. The adjusting rod is shaped to fit the retaining groove. Both ends of the adjusting rod are threadedly connected to a rotating shaft, and a retaining block is installed at the end of the rotating shaft furthest from the adjusting rod. Both the retaining block and the adjusting rod are shaped to fit the retaining groove. A through hole is formed at the center of the adjusting rod, and a pin is inserted into the nut. The length is adjusted by rotating the adjusting rod and rotating shaft threadedly, ensuring the through hole on the adjusting rod is always positioned within the through groove. The retaining block abuts against the inner wall of the retaining groove for fixation, thus enabling multi-point insertion and fixation of the pin. The abutment and fixation between the adjusting rod, retaining block, and the inner walls of the retaining groove and through groove prevents the adjusting rod and rotating shaft inserted into the bolt from rotating on their own, thereby improving the stability of the anti-loosening effect.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-loosening large hexagonal bolts, and in particular to an anti-loosening large hexagonal bolt. Background Technology

[0002] For example, CN223035474U is a high-strength anti-loosening bolt, and CN223203471U is a new type of anti-loosening bolt. Both of them use the method of drilling holes in the bolt and nut and inserting pins to prevent the bolt from loosening and falling off. However, both of them have the problem that the drilling position is fixed. When installed on different base surfaces, the holes need to be re-drilled, which makes them less practical. Utility Model Content

[0003] Therefore, it is necessary to provide a large hexagonal bolt that prevents loosening, addressing the technical problem of low practicality in fixing the aforementioned drilling positions.

[0004] To achieve the above objectives, this utility model provides a large hexagonal bolt for preventing loosening, comprising a bolt, a nut, and an adjusting rod. The bolt is characterized by having a through groove at its bottom, with a slot penetrating the bolt head. The adjusting rod is shaped to fit the slot. Both ends of the adjusting rod are threadedly connected to a rotating shaft, and a locking block is installed at the end of the rotating shaft furthest from the adjusting rod. Both the locking block and the adjusting rod are shaped to fit the slot. A through hole is formed at the center of the adjusting rod, and a pin is inserted into the nut, the pin being shaped to fit the through hole.

[0005] Preferably, the slot is rectangular or hexagonal in shape.

[0006] Preferably, the symmetrical two end faces of the inner wall of the through groove coincide with the symmetrical two end faces of the slot.

[0007] Preferably, the pin is fitted with an anti-detachment pin.

[0008] Preferably, a sealing gasket is installed on the locking block of the bolt head.

[0009] Preferably, the surfaces of the adjusting rod and the rotating shaft are coated with anti-rust paint.

[0010] Compared with existing technologies, this technical solution has at least one of the following beneficial effects: 1. The length is adjusted by rotating the adjusting rod and the rotating shaft by thread, so that the through hole on the adjusting rod can always be in the appropriate position in the through groove, and the locking block can abut against the inner wall of the slot to fix it, thereby realizing the multi-point insertion and fixation of the pin; 2. The adjusting rod and the locking block are fixed by abutting against the inner wall of the slot and through groove, so that the adjusting rod and the rotating shaft inserted into the bolt are not easy to rotate on their own, thereby improving the stability of the anti-loosening effect. Attached Figure Description

[0011] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is an exploded view of an embodiment of the present invention; In the diagram, 1 is a bolt; 2 is a nut; 3 is an adjusting rod; 4 is a through groove; 5 is a retaining groove; 6 is a rotating shaft; 7 is a retaining block; 8 is a through hole; 9 is a pin; 10 is an anti-detachment pin; and 11 is a sealing gasket. Detailed Implementation

[0012] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0013] Please see Figures 1 to 2 This application provides a large hexagonal bolt for preventing loosening, including a bolt 1, a nut 2, and an adjusting rod 3. The bolt 1 has a through groove 4, and a slot 5 that penetrates the bolt head of the bolt 1 is formed at the bottom of the through groove 4. The adjusting rod 3 is adapted to the shape of the slot 5. Both ends of the adjusting rod 3 are threadedly connected to a rotating shaft 6. A locking block 7 is fixedly installed at the end of the rotating shaft 6 away from the adjusting rod 3. The locking block 7 and the adjusting rod 3 are adapted to the shape of the slot 5. A through hole 8 is formed at the center of the adjusting rod 3. A pin 9 is inserted into the nut 2, and the pin 9 is adapted to the shape of the through hole 8.

[0014] In this embodiment, by rotating the rotating shafts 6 at both ends of the adjusting rod 3, the overall length of the adjusting rod 3 and the rotating shafts 6 can be adjusted, and the through hole 8 on the adjusting rod 3 can be positioned as required. After the bolt 1 is installed into the base surface and the nut 2 is screwed into the bolt 1, the adjusting rod 3 can be inserted into the slot 5 at the top of the bolt head of the bolt 1. After insertion, the locking block 7 on the rotating shaft 6 near the bottom of the bolt 1 can be locked into the slot 5 at the bottom of the through groove 4, while the locking block 7 near the top of the bolt 1 can be locked into the slot 5 on the bolt head of the bolt 1. Then, the pin 9 inserted on the nut 2 can be inserted into the through hole 8. After installation, the pin 9 is limited by the base surface itself and the rotating shaft 6 in the bottom slot 5, thereby achieving a good anti-loosening effect after the large hexagonal bolts are installed under different mounting base surfaces. Moreover, according to actual needs, either rotating shaft 6 on both sides of the adjusting rod 3 can be removed, and a longer rotating shaft 6 can be selected on the other side, so that the through hole 8 on the adjusting rod 3 can be located at the extreme positions at both ends of the through groove 4.

[0015] In some embodiments, to prevent the rotating shaft 6 from rotating due to vibration, the slot 5 is designed to be rectangular or hexagonal. Thus, the locking block 7, which matches the shape of the slot 5, can connect to the rotating shaft 6, which is then restrained by the slot 5 and will not rotate.

[0016] In some embodiments, to prevent the adjusting rod 3 from rotating due to vibration, the symmetrical end faces of the inner wall of the through groove 4 coincide with the symmetrical end faces of the slot 5. That is, the adjusting rod 3 can abut against the symmetrical end faces of the inner wall of the through groove 4, so that the adjusting rod 3 will not rotate due to vibration.

[0017] In some embodiments, to prevent the pin 9 from coming loose, an anti-loosening pin 10 is provided inserted into the pin 9. The anti-loosening pin 10 is inserted into a preset hole on the pin 9, and the two ends of the anti-loosening pin 10 can be bound and limited by the same wire according to the prior art.

[0018] In some embodiments, to facilitate the protection of the slot 5, a sealing gasket 11 is fixedly installed on the locking block 7 where the bolt head of the bolt 1 is located. The sealing gasket 11 can be a waterproof rubber gasket, thereby preventing water from entering the slot 5 and causing rust, and making it difficult to disassemble and replace the adjusting rod 3.

[0019] In some embodiments, to prevent the adjusting rod 3 and the rotating shaft 6 from rusting and corroding, the surfaces of the adjusting rod 3 and the rotating shaft 6 are coated with anti-rust paint. The anti-rust paint is the anti-rust paint for fasteners in the prior art.

[0020] The fixed connection and rotating installation in the above embodiments can all be achieved by welding, screw fasteners and other forms in the prior art, and the rotating installation can be achieved by bearings, circular rotating blocks and circular grooves. All of the above components are standard parts, and those that are not standard parts can also be specially customized, so the inventor will not elaborate further.

[0021] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0022] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A large hexagonal bolt for preventing loosening, comprising a bolt (1), a nut (2), and an adjusting rod (3), characterized in that, The bolt (1) is provided with a through groove (4), and the bottom of the through groove (4) is provided with a slot (5) that passes through the bolt head of the bolt (1). The shape of the adjusting rod (3) is adapted to the slot (5). Both ends of the adjusting rod (3) are threaded with a rotating shaft (6). The end of the rotating shaft (6) away from the adjusting rod (3) is equipped with a locking block (7). The locking block (7) and the adjusting rod (3) are adapted to the shape of the slot (5). The center of the adjusting rod (3) is provided with a through hole (8). A pin (9) is inserted into the nut (2). The shape of the pin (9) is adapted to the through hole (8).

2. The anti-loosening large hexagonal bolt according to claim 1, characterized in that, The slot (5) is rectangular or hexagonal in shape.

3. The anti-loosening large hexagonal bolt according to claim 2, characterized in that, The two symmetrical end faces of the inner wall of the through groove (4) coincide with the two symmetrical end faces of the slot (5).

4. The anti-loosening large hexagonal bolt according to claim 1, characterized in that, An anti-detachment pin (10) is inserted into the pin (9).

5. The anti-loosening large hexagonal bolt according to claim 1, characterized in that, A sealing gasket (11) is installed on the locking block (7) near the bolt head of the bolt (1).

6. The anti-loosening large hexagonal bolt according to claim 1, characterized in that, The surfaces of the adjusting rod (3) and the rotating shaft (6) are coated with anti-rust paint.

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