A locking hex head bolt

Abstract

The utility model discloses a hexagonal head bolt of anti -loose, including bolt, antiskid ring and nut, the antiskid ring is slidably connected on the bolt, a plurality of triangular blocks one are hinged on the antiskid ring, the nut is installed with the triangular block two corresponding to triangular block one one, triangular block one is connected with triangular block two, the antiskid ring is equipped with annular groove, the upper end surface of triangular block one is flush with annular groove and sets up, the annular groove is connected with the limiting ring in the clamping, and the limiting ring is equipped with the opening. Through the cooperation setting of triangular block one and triangular block two and the limiting effect of limiting ring to triangular block one, can make the nut install and not easy because of the vibration will back off loose, through the opening setting of limiting ring and the setting of limiting nut, can take down limiting nut again, and then take out limiting ring through the opening, thereby the nut can be screwed out, and the bolt is convenient to replace.

Description

Technical Field

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

[0002] In the prior art, such as CN222950203U, there is a hexagonal head bolt that can prevent stripping. It uses a positioning block inserted into the alignment groove to achieve the purpose of preventing bolt stripping. However, the nut can still loosen due to vibration of the installation environment. Therefore, it is necessary to design a hexagonal head bolt that prevents loosening. Utility Model Content

[0003] Therefore, it is necessary to provide a non-loosening hexagonal head bolt to address the technical problem that the aforementioned hexagonal head bolts can only achieve anti-slip but not anti-loosening.

[0004] To achieve the above objectives, this utility model provides a hexagonal head bolt with anti-loosening properties, including a bolt, an anti-slip ring, and a nut. The anti-slip ring is slidably engaged with the bolt. Several triangular blocks are hinged to the anti-slip ring. Triangular blocks corresponding to the triangular blocks are installed on the nut. The triangular blocks are engaged with each other. The anti-slip ring has an annular groove. The upper end face of the triangular blocks is flush with the annular groove. A limit ring is engaged in the annular groove. The limit ring has an opening.

[0005] Preferably, it also includes a limiting nut, which is located outside the nut and is slidably engaged with the nut. The inner wall of the limiting nut abuts against the limiting ring, and the top of the limiting nut is provided with a fixing groove, and the limiting ring abuts against the inner wall of the fixing groove.

[0006] Preferably, the limiting nut and the nut have the same limiting hole, and the limiting shaft is engaged in the limiting hole.

[0007] Preferably, the limiting hole is provided with a thread, and a limiting screw is connected to the thread in the limiting hole.

[0008] Preferably, there are several limiting holes, and the limiting holes are evenly distributed on the surface of the limiting nut.

[0009] Preferably, the limiting ring has a chamfer.

[0010] Compared with existing technologies, this technical solution has at least one of the following beneficial effects: 1. By using the combination of triangular block one and triangular block two, and the limiting ring limiting triangular block one, the nut is less likely to loosen due to vibration after installation. 2. By using the opening on the limit ring and the limit nut, the limit nut can be removed, and then the limit ring can be taken out through the opening, so that the nut can be unscrewed, making it easy to replace the bolt. Attached Figure Description

[0011] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a perspective view of the inside of a limiting nut according to an embodiment of the present invention; Figure 3 This is a partial cross-sectional view of an embodiment of the present invention; Figure 4 This is a front sectional view of a triangular block according to an embodiment of the present invention; In the diagram, 1. Bolt; 2. Anti-slip ring; 3. Nut; 4. Triangle block one; 5. Triangle block two; 6. Annular groove; 7. Limiting ring; 8. Limiting nut; 9. Limiting hole; 10. Limiting shaft; 11. Limiting screw; 12. Fixing circular groove. 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 4 This application provides an anti-loosening hexagonal head bolt, including a bolt 1, an anti-slip ring 2, and a nut 3. The top of the anti-slip ring 2 should be fitted with an elastic washer that abuts against the mounting surface. The anti-slip ring 2 is slidably engaged with the bolt 1. Several triangular blocks 4 are hinged on the anti-slip ring 2. Triangular blocks 5 corresponding to the triangular blocks 4 are fixedly installed on the nut 3. The triangular blocks 4 and triangular blocks 5 are engaged. An annular groove 6 is provided on the anti-slip ring 2. The upper end face of the triangular blocks 4 is flush with the annular groove 6. A limit ring 7 is engaged in the annular groove 6. The limit ring 7 has an opening.

[0014] In this embodiment, the bolt 1 has a vertical groove for the sliding anti-slip block mounted on the anti-slip ring 2 to slide, thus the anti-slip ring 2 acts as an anti-slip thread. Furthermore, the triangular block 4 hinged to the anti-slip ring 2 can rotate during the installation of the nut 3, allowing the nut 3 to rotate normally and causing the triangular block 5 to abut against the bottom of the anti-slip ring 2. This prevents the nut 3 from rotating further, achieving the anti-slip thread function. When the triangular block 5 passes the triangular block 4, the triangular block 4 can automatically reset due to gravity or be fixed by the insertion of the limit ring 7. This allows the vibrating nut 3 to rotate the triangular block 5 back to its original position. Triangle block 2 5 can compress triangle block 1 4, and triangle block 1 4 is limited by the limiting ring 7, so nut 3 can be prevented from rotating, thus achieving the effect of anti-loosening; the limiting ring 7 is made of metal with a certain toughness, and can be enlarged by a tool and fitted into the annular groove 6, and then the limiting ring 7 can be restored, thus achieving the limiting effect of the limiting ring 7 on triangle block 1 4; after installation, the elastic washer on the anti-slip ring 2 can press the anti-slip ring 2 back a certain distance, so that the anti-slip ring 2 and triangle block 2 5 abut against each other more closely; triangle block 2 5 is slightly larger than triangle block 1 4, so triangle block 2 5 will not be inserted into the hinge groove of triangle block 1 4.

[0015] In some embodiments, to facilitate the protection of the nut 3 and the retaining ring 7, a retaining nut 8 is also provided. The retaining nut 8 is located outside the nut 3 and is slidably engaged with the nut 3. A fixing groove 12 is formed on the top of the retaining nut 8, and the retaining ring 7 abuts against the inner wall of the fixing groove 12. By abutting against the inner wall of the nut 3 and the inner wall of the retaining nut 8, and abutting against the inner wall of the fixing groove 12, the two are prevented from directly contacting the outside, thereby avoiding damage to internal components. Furthermore, the fixing groove 12 can limit the retaining ring 7, so that the retaining ring 7, which may not fully recover, can be limited within the annular groove 6.

[0016] In one embodiment of the limiting hole 9, to prevent the limiting nut 8 from slipping off, the limiting nut 8 and the nut 3 are provided with the same limiting hole 9, and a limiting shaft 10 is engaged in the limiting hole 9. The limiting shaft 10 is inserted into the limiting hole 9 and sealed with adhesive tape or the like on the outer wall, thereby achieving the effect of preventing the limiting nut 8 from slipping off.

[0017] In another embodiment of the limiting hole 9, to prevent the limiting nut 8 from slipping off, the limiting hole 9 is provided with a thread, and a limiting screw 11 is connected to the thread in the limiting hole 9. By screwing the limiting screw 11 into the limiting hole 9, the limiting nut 8 can also be prevented from slipping off, which is more suitable for the installation of large hexagonal head bolts.

[0018] In some embodiments, to further improve the anti-loosening effect of the limiting nut 8, a plurality of limiting holes 9 are provided, which are evenly distributed on the surface of the limiting nut 8. This allows the limiting nut 8 to be fixed by installing different numbers of limiting shafts 10 or limiting screws 11 as needed.

[0019] In some embodiments, to facilitate the limiting ring 7 in pressing and resetting the deflected triangular block 4, the limiting ring 7 is provided with a chamfer. The chamfer abuts against the triangular block 4, and the limiting ring 7 applies pressure to press and reset the triangular block 4.

[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 hexagonal head bolt for preventing loosening, comprising a bolt (1), an anti-slip ring (2), and a nut (3), wherein the anti-slip ring (2) is slidably engaged with the bolt (1), characterized in that, The anti-slip ring (2) is hinged with several triangular blocks (4), and the nut (3) is fitted with triangular blocks (5) that correspond one-to-one with the triangular blocks (4). The triangular blocks (4) and the triangular blocks (5) are engaged. The anti-slip ring (2) is provided with an annular groove (6). The upper end face of the triangular blocks (4) is flush with the annular groove (6). A limit ring (7) is engaged in the annular groove (6). The limit ring (7) is provided with an opening.

2. The anti-loosening hexagonal head bolt according to claim 1, characterized in that, It also includes a limiting nut (8), which is located outside the nut (3) and is slidably engaged with the nut (3). The top of the limiting nut (8) is provided with a fixed circular groove (12), and the limiting ring (7) abuts against the inner wall of the fixed circular groove (12).

3. The anti-loosening hexagonal head bolt according to claim 2, characterized in that, The limiting nut (8) and the nut (3) are provided with the same limiting hole (9), and the limiting shaft (10) is engaged in the limiting hole (9).

4. The anti-loosening hexagonal head bolt according to claim 3, characterized in that, The limiting hole (9) is threaded, and the limiting hole (9) is threaded to a limiting screw (11).

5. The anti-loosening hexagonal head bolt according to any one of claims 3 or 4, characterized in that, The number of the limiting holes (9) is several, and the several limiting holes (9) are evenly distributed on the surface of the limiting nut (8).

6. The anti-loosening hexagonal head bolt according to claim 1, characterized in that, The limiting ring (7) has a chamfer.

Images