Anti-drop hexagonal nut

Abstract

The utility model discloses an anti-drop hexagon nut, which relates to the field of nuts, and adopts the technical scheme that the anti-drop hexagon nut comprises a nut base body and an anti-drop bolt, a threaded hole is formed in the center of the nut base body, a through hole is formed in the side wall of the nut base body, internal threads are arranged on the inner circumferential wall of the through hole, and the anti-drop bolt comprises a threaded column and a bolt head. And the bolt head can be clamped and fixed on the threaded column. The threaded column structure is directly connected into the through hole in a threaded mode, so that screwing of the nut base body cannot be affected by the threaded column structure, after the nut base body is screwed, people directly clamp and fix the bolt head to the threaded column, and due to the fact that the threaded column is located in the through hole, people do not need to overcome the depth of the through hole any more; and the brass has the characteristic of high structural strength, so that the strength and the service life of the whole nut machine body are ensured.

Description

Technical Field

[0001] This utility model relates to the field of nuts, and more specifically, to a hexagonal nut that prevents loosening. Background Technology

[0002] Anti-loosening hexagonal nuts are the most common type of nut. They are hexagonal in shape with threaded holes inside, and are used to mate with bolts or screws to achieve mechanical fastening connections.

[0003] A Chinese patent with publication number CN217873693U discloses a thickened hexagonal flange nut. Its key technical features include: a nut base, a reinforcing flange, connecting reinforcing ribs, internal interlocking threads, an anti-loosening auxiliary bolt, and a buffer gasket. The reinforcing flange is welded to the bottom of the nut base, and the connecting reinforcing ribs are welded between the nut base and the reinforcing flange. The internal interlocking threads are formed on the inner surface of the nut base. The anti-loosening auxiliary bolt is threaded onto one side of the nut base, and the buffer gasket is adhered to the surface of the reinforcing flange.

[0004] In the above solution, the anti-loosening performance of the nut base is increased by adding an anti-loosening auxiliary bolt. To facilitate the tightening of the anti-loosening auxiliary bolt, the bolt head is always exposed outside the side wall of the nut. When tightening the nut base, a wrench is needed to hold the two opposite side walls of the nut. However, the anti-loosening auxiliary bolt being exposed on the outer wall of the nut base affects the wrench's grip. Therefore, people tighten the nut base first and then screw in the anti-loosening auxiliary bolt. However, the nut base has a certain thickness. Each time people tighten the anti-loosening auxiliary bolt, they must first overcome the distance of the nut base wall thickness before one end of the anti-loosening auxiliary bolt can achieve the anti-loosening effect. This makes it take a lot of time to tighten the anti-loosening auxiliary bolt each time, resulting in poor installation efficiency of the nut base.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hexagonal nut that prevents loosening.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hexagonal nut for preventing loosening, comprising a nut base and a bolt for preventing loosening, wherein a threaded hole is provided in the center of the nut base, and a through hole communicating with the threaded hole is provided on the side wall of the nut base, and an internal thread is provided on the inner peripheral wall of the through hole; the bolt for preventing loosening comprises a threaded post and a bolt head, wherein the bolt head can be snapped and fixed on the threaded post, and the threaded post is threadedly connected in the through hole and one end of the threaded post is flush with the side wall of the nut base.

[0008] The present invention is further configured such that: a rectangular hole is provided on one end of the threaded column facing away from the threaded hole, a snap-fit ​​groove is provided on the inner wall of the rectangular hole, a rectangular column is fixedly connected to the bolt head, and a snap-fit ​​block is provided on the side wall of the rectangular column. The snap-fit ​​block restricts the separation of the bolt head from the threaded column by embedding into the snap-fit ​​groove.

[0009] The present invention is further configured such that: a groove is provided on the side wall of the rectangular column, the locking block is slidably connected in the groove, a compression spring is provided in the groove, the compression spring is used to provide a force for the locking block to move in the opposite direction of the groove, the cross section of the locking block is set in a right-angled triangle, and the side of the locking block facing away from the bolt head is an inclined surface.

[0010] The present invention is further configured such that: the number of the snap-fit ​​grooves is four, and the four snap-fit ​​grooves are respectively located on the four inner sidewalls of the rectangular hole.

[0011] The present invention is further configured such that: a regular hexagonal groove is provided on the side of the threaded column facing away from the threaded hole, and the rectangular hole is located on the bottom surface of the regular hexagonal groove.

[0012] The present invention is further configured such that the nut base is made of brass.

[0013] In summary, this utility model has the following beneficial effects:

[0014] The threaded post structure is directly threaded into the through hole, and neither end of the threaded post is exposed. This ensures that the threaded post structure does not affect the tightening of the nut base. After the nut base is tightened, the bolt head is directly snapped onto the threaded post. The snap-fit ​​structure facilitates the installation of the bolt head and the threaded post. Since the threaded post itself is located inside the through hole, when tightening the anti-loosening bolt, it is not necessary to overcome the depth of the through hole, which greatly reduces the time required to tighten the anti-loosening bolt and increases the speed required for nut installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Nut base; 2. Threaded hole; 3. Through hole; 4. Threaded post; 5. Bolt head; 6. Rectangular hole; 7. Snap-fit ​​groove; 8. Snap-fit ​​block; 9. Slide groove; 10. Compression spring; 11. Regular hexagonal slot. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Anti-loosening hexagonal nuts, such as Figure 1and Figure 2 As shown, the device includes a nut base 1 and an anti-loosening bolt. The nut base 1 has a threaded hole 2 at its center, and a through hole 3 communicating with the threaded hole 2 is formed on the side wall of the nut base 1. Internal threads are provided on the inner circumferential wall of the through hole 3. The anti-loosening bolt includes a threaded post 4 and a bolt head 5. The bolt head 5 can be snapped onto the threaded post 4. The threaded post 4 is threaded into the through hole 3, and one end of the threaded post 4 is flush with the side wall of the nut base 1. The threaded post 4 is directly threaded into the through hole 3, and neither end of the threaded post 4 is exposed, ensuring that the threaded post 4 structure does not affect the tightening of the nut base 1. After tightening the nut base 1, the bolt head 5 is directly snapped onto the threaded post 4. This snap-fit ​​structure facilitates the installation of the bolt head 5 and the threaded post 4. Because the threaded post 4 is located within the through hole 3, when tightening the anti-loosening bolt, it is not necessary to overcome the depth of the through hole 3, greatly reducing the time required to tighten the anti-loosening bolt and increasing the speed required for nut installation.

[0020] like Figure 1 and Figure 2 As shown, a rectangular hole 6 is provided on the end of the threaded post 4 facing away from the threaded hole 2. A snap-fit ​​groove 7 is provided on the inner wall of the rectangular hole 6. A rectangular post is fixedly connected to the bolt head 5. A snap-fit ​​block 8 is provided on the side wall of the rectangular post. The snap-fit ​​block 8 restricts the bolt head 5 from separating from the threaded post 4 by embedding into the snap-fit ​​groove 7. After the rectangular post is embedded in the rectangular hole 6, the rectangular shape makes it difficult for the bolt head 5 and the threaded post 4 to rotate relative to each other. The cooperation between the snap-fit ​​block 8 and the snap-fit ​​groove 7 ensures that the rectangular post and the rectangular hole 6 will not separate in the depth direction of the rectangular hole 6, thus ensuring the connection strength between the bolt head 5 and the threaded post 4. A sliding groove 9 is provided on the side wall of the rectangular post. The snap-fit ​​block 8 is slidably connected in the sliding groove 9. A compression spring 10 is provided in the sliding groove 9. The compression spring 10 is used to provide a force for the snap-fit ​​block 8 to move in the direction away from the sliding groove 9. The cross-section of the snap-fit ​​block 8 is set in a right-angled triangle. The side of the snap-fit ​​block 8 facing away from the bolt head 5 As the rectangular column is inserted into the rectangular hole 6, the outer edge of the rectangular hole 6 will first contact the inclined surface of the locking block 8, thus causing the locking block 8 to be subjected to a force moving towards the slide groove 9. The locking block 8 retracts into the slide groove 9, and the compression spring 10 located in the slide groove 9 is compressed. When the rectangular column is fully inserted into the rectangular hole 6, the locking block 8 will be embedded into the locking hole under the action of the compression spring 10. At this time, the plane of the locking block 8 contacts the plane of the locking groove 7, so that the bolt head 5 cannot be pulled out, thus completing the assembly of the threaded column 4 and the bolt head 5. This locking method makes the connection between the bolt head 5 and the threaded column 4 fast and the connection strength high. There are four locking grooves 7, which are located on the four inner side walls of the rectangular hole 6. This design makes it convenient for people to operate without having to consider the position of the locking block 8 when inserting the rectangular column into the rectangular hole 6.

[0021] like Figure 1 and Figure 2As shown, a regular hexagonal slot 11 is provided on the side of the threaded post 4 facing away from the threaded hole 2. The rectangular hole 6 is located on the bottom surface of the regular hexagonal slot 11. The regular hexagonal slot 11 allows the threaded post 4 to be screwed into the through hole 3 through the regular hexagonal slot 11 during the production process of the nut body. The nut body 1 is made of brass, which has the characteristics of high structural strength, ensuring the overall strength and life of the nut body.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A hexagonal nut with anti-loosening capability, comprising a nut base (1) and an anti-loosening bolt, wherein a threaded hole (2) is provided at the center of the nut base (1), and a through hole (3) communicating with the threaded hole (2) is provided on the side wall of the nut base (1), and an internal thread is provided on the inner peripheral wall of the through hole (3), characterized in that: The anti-loosening bolt includes a threaded post (4) and a bolt head (5). The bolt head (5) can be snapped onto the threaded post (4). The threaded post (4) is threaded into the through hole (3) and one end of the threaded post (4) is flush with the side wall of the nut base (1).

2. The anti-loosening hexagonal nut according to claim 1, characterized in that: The threaded post (4) has a rectangular hole (6) on one end facing away from the threaded hole (2). A snap-fit ​​groove (7) is provided on the inner wall of the rectangular hole (6). A rectangular post is fixedly connected to the bolt head (5). A snap-fit ​​block (8) is provided on the side wall of the rectangular post. The snap-fit ​​block (8) restricts the bolt head (5) from separating from the threaded post (4) by embedding into the snap-fit ​​groove (7).

3. The anti-loosening hexagonal nut according to claim 2, characterized in that: The rectangular column has a groove (9) on its side wall. The locking block (8) is slidably connected in the groove (9). A compression spring (10) is provided in the groove (9). The compression spring (10) is used to provide the locking block (8) with a force to move in the direction away from the groove (9). The locking block (8) has a right-angled triangle cross section. The side of the locking block (8) facing away from the bolt head (5) is an inclined surface.

4. The anti-loosening hexagonal nut according to claim 2, characterized in that: The number of the snap-fit ​​grooves (7) is four, and the four snap-fit ​​grooves (7) are respectively located on the four inner sidewalls of the rectangular hole (6).

5. The anti-loosening hexagonal nut according to claim 2, characterized in that: The threaded post (4) has a regular hexagonal groove (11) on the side opposite to the threaded hole (2), and the rectangular hole (6) is located on the bottom surface of the regular hexagonal groove (11).

6. The anti-loosening hexagonal nut according to claim 1, characterized in that: The nut base (1) is made of brass.

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