Anti-loosening and anti-theft nut

Abstract

The utility model discloses an anti-loose anti-theft nut, and particularly relates to the technical field of fasteners, the anti-loose anti-theft nut comprises a nut body, the side wall of the nut body is provided with three horizontal grooves in an array mode, the bottom surface of the nut body is provided with three vertical grooves in an annular array mode, and the inner surfaces of the horizontal grooves and the inner surfaces of the vertical grooves are jointly provided with anti-loose assemblies. According to the anti-loosening and anti-theft nut, the design of the anti-loosening assembly is adopted, the limiting ball of the inner ring is used for extruding the bolt, so that the friction force between the limiting ball and the bolt is increased, the nut cannot be unscrewed through a conventional wrench and a conventional sleeve by means of protruding of the limiting ball of the outer ring, and the nut can be prevented from being stolen and loosened when used; and by adopting the design of the second spring and the extension rod, the extension rod can be driven to move up and down when the part vibrates, so that the limiting ball of the inner ring continuously extrudes the bolt, the part can be prevented from loosening during vibration, and the nut is more stable during use.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening and anti-theft nut. Background Art

[0002] Nuts are the most common fixing tools. They usually have a through hole in the center and then have threads fixed on the inner wall. Nuts are generally used with corresponding screws or bolts. The fixing is simple, convenient and secure.

[0003] Chinese patent document CN220354249U discloses a fixing nut, which relates to the technical field of locking parts, including a nut outer ring, wherein the nut outer ring is rotatably connected to the nut inner ring, the inner wall of the nut inner ring is fixed with a thread, and a twisting assembly is provided between the nut outer ring and the nut inner ring. When the nut is needed, the nut inner ring is first aligned with the required bolt, and then the nut outer ring is rotated. The nut outer ring drives the nut inner ring to rotate on the bolt by the twisting assembly until the nut inner ring is tightened on the bolt. When the nut is to be unscrewed, the nut outer ring cannot drive the nut outer ring in the opposite direction by the twisting assembly. The nut outer ring can only rotate on the nut inner ring. The nut outer ring and the nut inner ring are connected by the twisting assembly, so that the nut cannot be detached from the bolt by twisting after being tightened.

[0004] However, if the nut is subjected to mechanical vibration during actual use, the nut will gradually loosen on the bolt, causing the nut to be unstable during use, and the nut can be removed using a conventional wrench, resulting in relatively poor anti-theft performance. Utility Model Content

[0005] The main purpose of the utility model is to provide an anti-loosening and anti-theft nut, which can effectively solve the problems of the nut being unstable during use and having relatively poor anti-theft performance.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A nut that prevents loosening and theft, comprising a nut body, wherein the side wall array of the nut body is provided with three horizontal grooves, the bottom surface of the nut body is provided with three vertical grooves in an annular array, and the horizontal grooves are communicated with the interior of the vertical grooves, and the inner surfaces of the horizontal grooves and the vertical grooves are jointly provided with an anti-loosening component.

[0008] Preferably, the anti-loosening component includes a mounting tube fixed to the inner wall of the vertical groove and two limiting balls sliding in the horizontal groove, the two limiting balls are respectively located on the left and right sides of the mounting tube, and a connecting rod is fixed on the side of the outer surface of the limiting balls close to each other, and the connecting rod passes through the mounting tube, and a spring is fixed between the outer surface of the mounting tube and the two limiting balls, and a limiting component is also provided inside the mounting tube.

[0009] Preferably, the limiting assembly includes an extension rod sliding inside the vertical slot, a second spring is provided between the extension rod and the mounting tube, and a second connecting rod slidably connected to the mounting tube is provided at the upper end of the extension rod.

[0010] Preferably, a ball bearing is further provided at the lower end of the extension rod.

[0011] Preferably, the ends of the two connecting rods 1 that are close to each other are both designed in an arc shape, and the end of the connecting rod 2 that is away from the spring 2 is designed in a truncated cone shape.

[0012] Preferably, when the spring 2 is in a natural state, the extension rod portion is located outside the vertical slot, and both springs 1 are in a natural state, and the limiting ball is completely located in the horizontal slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model adopts the design of anti-loosening component, which uses the limiting ball on the inner circle to squeeze the bolt, thereby increasing the friction between the limiting ball and the bolt, and uses the protrusion of the limiting ball on the outer circle to prevent conventional wrenches and sockets from loosening the nut, so that the nut can be prevented from being stolen and loosened when in use.

[0015] 2. The utility model adopts the design of spring 2 and extension rod, so that when the part vibrates, the extension rod can be driven to move up and down, so that the limiting ball in the inner ring continues to squeeze the bolt, which can prevent the part from loosening during vibration and make the nut more stable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the utility model Figure 1 ;

[0018] Figure 3 This is a cross-sectional view of the utility model Figure 2 .

[0019] In the figure: 1. Nut body; 2. Horizontal slot; 3. Vertical slot; 4. Anti-loosening assembly; 5. Limit assembly; 41. Mounting tube; 42. Limit ball; 43. Connecting rod 1; 44. Spring 1; 51. Extension rod; 52. Spring 2; 53. Connecting rod 2. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 and Figure 2 As shown, an anti-loosening and anti-theft nut includes a nut body 1, three horizontal grooves 2 are opened in an array on the side wall of the nut body 1, three vertical grooves 3 are opened in an annular array on the bottom surface of the nut body 1, and the horizontal grooves 2 are communicated with the interior of the vertical grooves 3, and the inner surfaces of the horizontal grooves 2 and the vertical grooves 3 are jointly provided with an anti-loosening component 4.

[0022] like Figure 2 and Figure 3 As shown, the anti-loosening component 4 includes a mounting tube 41 fixed to the inner wall of the vertical groove 3 and two limiting balls 42 sliding in the horizontal groove 2. The two limiting balls 42 are respectively located on the left and right sides of the mounting tube 41. A connecting rod 43 is fixed on the side of the outer surface of the limiting balls 42 that is close to each other, and the connecting rod 43 passes through the mounting tube 41. The mounting tube 41 is used to support the two connecting rods 43 and also limit the two connecting rods 43. Due to the fixed connection between the connecting rod 43 and the limiting balls 42, the two limiting balls 42 can only move toward the side that is close to each other or toward the side that is away from each other, and cannot roll in the limiting balls 42. A spring 44 is fixed between the outer surface of the mounting tube 41 and the two limiting balls 42. The two springs 44 are used to pull the two limiting balls 42 to move toward the side that is close to each other. A limiting component 5 is also provided inside the mounting tube 41.

[0023] like Figure 3 As shown, the limiting assembly 5 includes an extension rod 51 that slides inside the vertical groove 3, and a spring 2 52 is provided between the extension rod 51 and the mounting tube 41. The upper end of the extension rod 51 is also provided with a connecting rod 2 53 that is slidably connected to the mounting tube 41, and the lower end of the extension rod 51 is also provided with a ball. The ball is an existing technology and can facilitate the extension rod 51 to slide on the surface of the part.

[0024] like Figure 3 As shown, the ends of the two connecting rods 43 that are close to each other are both designed in an arc shape, and the end of the connecting rod 2 53 that is away from the spring 2 52 is designed in a truncated cone shape, so that the connecting rod 1 43 can contact the outer surface of the connecting rod 2 53, and when the connecting rod 2 53 moves upward, the two connecting rods 43 can move to the side away from each other, further allowing the two limiting balls 42 to move to the side away from each other.

[0025] When the spring 2 52 is in the natural state, the extension rod 51 is partially located outside the vertical slot 3, and the two springs 1 44 are in the natural state. The limiting ball 42 is completely located in the horizontal slot 2, so that when the nut body 1 is screwed on the bolt, the extension rod 51 will first contact the parts. When the nut body 1 continues to be tightened, the parts will block the extension rod 51, causing the extension rod 51 to move upward relative to the nut body 1, and then through the mutual contact between the connecting rod 2 53 and the two connecting rods 1 43, the two limiting balls 42 will move to the side away from each other. The limiting ball 42 located in the inner circle can be squeezed between the bolts, and then gradually increase the friction between the limiting ball 42 and the bolt, thereby achieving the effect of preventing loosening. When the spring 1 44 is in the natural state, the two limiting balls 42 are completely located in the horizontal slot 2, which facilitates the tightening of the nut body 1.

[0026] Since the extension rod 51 can push the two limiting balls 42 to move away from each other when the nut body 1 is tightened, the limiting balls 42 of the outer ring can be partially exposed on the outside of the nut body 1, thereby causing the side wall of the nut body 1 to bulge out. Moreover, since the parts limit the extension rod 51, the nut body 1 cannot be loosened by conventional wrenches and sockets, and can only be loosened by special wrenches and sockets, thereby achieving an anti-theft effect.

[0027] Since the nut body 1 is hexagonal in design, when loosening or tightening the nut body 1, it is necessary to symmetrically clamp the two sides of the nut body 1, and then the nut body 1 can be loosened or tightened by rotating the nut body 1. Therefore, limiting balls 42 are protruded on the three surfaces of the nut body 1, so that the nut body 1 needs to be rotated with a special wrench or socket when loosening or tightening the nut body 1, and three anti-loosening components 4 are provided in an annular array, which can save materials and increase the strength of the nut body 1 while still having an anti-theft effect.

[0028] The specific implementation of this embodiment is as follows: when using this nut, a special wrench and socket are required to screw the nut body 1. When the extension rod 51 contacts the part and the nut body 1 is continuously tightened, the extension rod 51 can move upward relative to the nut body 1. Then, the second connecting rod 53 cooperates with the two first connecting rods 43 to allow the two limiting balls 42 to move away from each other. The limiting balls 42 of the inner ring squeeze the bolt, which can prevent the bolt and nut from loosening during vibration, thereby affecting the tightening effect. At the same time, the limiting balls 42 of the outer ring are partially exposed to the outside of the nut body 1, so that non-special wrenches and sockets cannot screw off the nut, thereby playing an anti-theft role.

[0029] At the same time, due to the design of spring 2 52, the extension rod 51 can contact the part. When the part to be tightened vibrates, the extension rod 51 can move up and down, further allowing the inner ring limiting ball 42 to continue to squeeze the bolt, which can prevent the nut from loosening when the part vibrates.

[0030] It should be noted that the specific installation method, circuit connection method and control method of the nut body 1 and the ball in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening and anti-theft nut, comprising a nut body (1), characterized in that: The side wall array of the nut body (1) is provided with three horizontal grooves (2), the bottom surface annular array of the nut body (1) is provided with three vertical grooves (3), and the horizontal grooves (2) are internally communicated with the vertical grooves (3), and the inner surfaces of the horizontal grooves (2) and the vertical grooves (3) are jointly provided with an anti-loosening component (4).

2. The anti-loosening and anti-theft nut according to claim 1, characterized in that: The anti-loosening assembly (4) comprises a mounting tube (41) fixed to the inner wall of the vertical groove (3) and two limiting balls (42) sliding in the horizontal groove (2), the two limiting balls (42) being respectively located on the left and right sides of the mounting tube (41), a connecting rod (43) being fixed on the side of the outer surface of the limiting balls (42) close to each other, and the connecting rod (43) passing through the mounting tube (41), a spring (44) being fixed between the outer surface of the mounting tube (41) and the two limiting balls (42), and a limiting assembly (5) being further provided inside the mounting tube (41).

3. The anti-loosening and anti-theft nut according to claim 2, characterized in that: The limiting assembly (5) includes an extension rod (51) that slides inside the vertical slot (3), a second spring (52) is provided between the extension rod (51) and the mounting tube (41), and a second connecting rod (53) that is slidably connected to the mounting tube (41) is provided at the upper end of the extension rod (51).

4. The anti-loosening and anti-theft nut according to claim 3, characterized in that: The lower end of the extension rod (51) is also provided with a ball.

5. The anti-loosening and anti-theft nut according to claim 3, characterized in that: The ends of the two connecting rods (43) that are close to each other are both designed in an arc shape, and the end of the connecting rod (53) that is away from the spring (52) is designed in a truncated cone shape.

6. The anti-loosening and anti-theft nut according to claim 3, characterized in that: When the second spring (52) is in a natural state, the extension rod (51) is partially located outside the vertical slot (3), and the two first springs (44) are both in a natural state, and the limiting ball (42) is completely located in the horizontal slot (2).

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