Combined anti-theft nut

Abstract

The utility model discloses a combined anti-theft nut which comprises a nut body, the nut body is connected with an anti-theft ring, the anti-theft ring is provided with an inner hole with the same inner diameter as the anti-theft nut, the anti-theft ring is provided with an anti-theft assembly, and the anti-theft assembly comprises a cavity formed in the anti-theft ring and a movable piece arranged in the cavity. A through hole communicated with the inner hole is formed in the inner wall of the cavity, a wedge block is arranged on the side, facing the through hole, of the movable part, a first elastic assembly is fixed to the inner wall of the cavity, the end of the first elastic assembly is connected with the movable part, a second elastic assembly is fixed to the inner top wall of the cavity, and a fixing plate is connected to the end of the second elastic assembly. A rotatable rotating column is arranged on the fixing plate, a pushing block is arranged on the side wall of the rotating column, an inserting groove is formed in the bottom of the rotating column, an opening corresponding to the rotating column in position is formed in the bottom of the cavity, a pair of locking grooves are symmetrically formed in the positions, on the two sides of the opening, of the bottom wall of the cavity, and an L-shaped locking block is arranged on the side wall of the rotating column; a mortise lock is further included, and the section shape of the mortise lock is the same as that of the slot.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware accessories, in particular to a combined anti-theft nut. Background Art

[0002] Conventional nuts have a wide range of applications and a relatively simple structure, so they do not have an anti-theft function. However, in some special use occasions, such as power transmission towers of power systems, communication systems, and automobile tires and accessories, if there are no anti-theft measures, they are easily stolen by criminals, causing great losses. There are anti-theft bolts produced on the market to overcome the theft phenomenon. The structure of many nuts is that after the bolt and nut are locked, a permanent fixing structure is set, such as AB glue, welding, pin fixing, etc., so that the bolt and nut can be fastened together. However, in actual use, in most use occasions, the nut needs to be detachable to facilitate later maintenance or relocation, and its use has certain limitations. Utility Model Content

[0003] The purpose of the utility model is to provide a combined anti-theft nut to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a combined anti-theft nut, comprising a nut body, the nut body being connected to an anti-theft ring, the anti-theft ring being welded and fixed to the nut, the anti-theft ring being provided with an inner hole having the same inner diameter as the anti-theft nut, the anti-theft ring being provided with an anti-theft component, the anti-theft component comprising a cavity provided on one side of the anti-theft ring and a movable part which can slide radially in the cavity, the inner wall of the cavity being provided with a through hole communicating with the inner hole, the movable part being provided with a wedge-shaped block on the side facing the through hole, the inner wall of the cavity being fixed with a radially arranged first elastic component, the end of the first elastic component being connected to the movable part The movable part is connected with the movable part, and an axially arranged second elastic component is fixed on the top wall of the cavity on the side away from the through hole, and the end of the second elastic component is connected to a fixing plate, and a rotatable rotating column is provided on the fixing plate, and a push block is provided on the side wall of the rotating column, and a slot is provided at the bottom of the rotating column, and an opening corresponding to the position of the rotating column is provided at the bottom wall of the cavity, and a pair of locking grooves are symmetrically provided on both sides of the opening, and the side wall of the rotating column is also provided with an L-shaped locking block, and the L-shaped locking block and the locking groove can be plugged in and matched up and down; it also includes a latch, and the cross-sectional shape of the latch is the same as the cross-sectional shape of the slot.

[0005] With the above technical solution, when the nut body is not in use, the first elastic component is in an extended state, pushing the movable part away from the through hole and fitting it with the rotating column. The push block on the rotating column is located on the side away from the movable part. The second elastic component is in an extended state, pushing the fixed seat to the bottom of the cavity, so that the L-shaped locking block is plugged into the locking groove away from the through hole. At this time, the wedge block on the movable part is locked in the cavity. When the nut body is in use and screwed with the bolt, the slots are all of a specific shape. At this time, the lock is inserted into the slot through the opening, and the rotating column is pushed upward, so that the fixed seat The plate squeezes the second elastic member, and the L-shaped locking block disengages from the locking groove. Then the lock is rotated to rotate the rotating column 90 degrees. After the rotating column rotates, the push block pushes the movable member. At the same time, the first elastic member is squeezed, and the movable member slides and the wedge block extends from the through hole. The bolt of the wedge block is locked, thereby achieving an anti-theft effect. Then the second elastic member is reset to push the fixed block and the rotating column downward, so that the L-shaped locking block is plugged into the other locking groove. Similarly, when unlocking is required, the rotating column is rotated 90 degrees in the opposite direction, and the first elastic member is reset to push the movable member to slide, so that the wedge block is retracted into the cavity.

[0006] As a further optimization of the present invention, the anti-theft component is provided with two first anti-theft components and a second anti-theft component, which are respectively arranged on both sides of the anti-theft ring, and the latch is provided with two first latch and a second latch, which are respectively adapted to the first anti-theft component and the second anti-theft component, and the cross-sectional shapes of the first latch and the second latch are different.

[0007] By adopting the above technical solution, two anti-theft components are set to lock both sides of the bolt to improve the locking effect. A first latch and a second latch are set, and both need to cooperate at the same time to complete the unlocking, thereby improving the anti-theft effect.

[0008] As a further optimization of the present invention, the first elastic component includes a first telescopic rod and a first spring, and the second elastic component includes a second telescopic rod and a second spring.

[0009] As a further optimization of the present invention, the inner wall of the cavity is provided with a sliding groove opened along the radial direction, and the side wall of the movable part is provided with a sliding block slidably adapted to the sliding groove.

[0010] As a further optimization of the present invention, a boss is provided at the center of the fixed plate, and a connecting groove rotatably matched with the boss is provided at the top center of the rotating column.

[0011] As a further optimization of the present invention, the end surface of the push block is configured to be arc-shaped.

[0012] By adopting the above technical solution, the push block is set to an arc shape to reduce friction between the push block and the movable parts, reduce wear and tear, and extend the service life.

[0013] The beneficial effects of the present invention are as follows: when the nut body is not in use, the first elastic component is in an extended state, pushing the movable part away from the through hole and fitting it with the rotating column. The push block on the rotating column is located on the side away from the movable part. The second elastic component is in an extended state, pushing the fixed seat to the bottom of the cavity, so that the L-shaped locking block is plugged into the locking groove away from the through hole. At this time, the wedge block on the movable part is locked in the cavity. When the nut body is in use and screwed with the bolt, the slots are all of a specific shape. At this time, the latch is inserted into the slot through the opening, and the rotating column is pushed upward, so that The fixed plate squeezes the second elastic member, and the L-shaped locking block disengages from the locking groove. Then the lock is rotated to rotate the rotating column 90 degrees. After the rotating column rotates, the push block pushes the movable member. At the same time, the first elastic member is squeezed, and the movable member slides and the wedge block extends from the through hole. The bolt of the wedge block is locked, thereby achieving an anti-theft effect. Then the second elastic member resets and pushes the fixed block and the rotating column downward, so that the L-shaped locking block is plugged into the other locking groove. Similarly, when unlocking is required, the rotating column is rotated 90 degrees in the opposite direction, and the first elastic member resets and pushes the movable member to slide, so that the wedge block is retracted into the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic cross-sectional view of the utility model;

[0015] Figure 2 for Figure 1 An enlarged schematic diagram in FIG.

[0016] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the use state of the utility model;

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of .

[0019] The meaning of the numbers in the figure are: 1. Nut body; 2. Anti-theft ring; 21. Cavity; 210. Through hole; 211. Opening; 212. Slide groove; 213. Locking groove; 3. Movable part; 31. Wedge block; 41. First elastic component; 42. Second elastic component; 5. Fixed plate; 51. Boss; 6. Rotating column; 61. Connecting groove; 62. Slot; 7. Push block; 8. L-shaped locking block; 9. Lock. DETAILED DESCRIPTION

[0020] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0021] See attached Figure 1-5 The embodiment disclosed in the present utility model further provides: a combined anti-theft nut, comprising a nut body 1, the nut body 1 being connected to an anti-theft ring 2, the anti-theft ring 2 being provided with an inner hole having the same inner diameter as the anti-theft nut, the anti-theft ring 2 being provided with an anti-theft component, the anti-theft component being provided with two first anti-theft components and a second anti-theft component, respectively provided on both sides of the anti-theft ring 2;

[0022] The anti-theft assembly includes a cavity 21 provided on one side of the anti-theft ring 2 and a movable member 3 provided in the cavity 21 and capable of sliding radially. Specifically, the inner wall of the cavity 21 is provided with a radially extending groove 212, and the side wall of the movable member 3 is provided with a slider that slides in the groove 212.

[0023] A through hole 210 communicating with the inner hole is provided on the inner wall of the cavity 21, a wedge block 31 is provided on the side of the movable part 3 facing the through hole 210, a radially arranged first elastic component 41 is fixed to the inner wall of the cavity 21, and the end of the first elastic component 41 is connected to the movable part 3, and an axially arranged second elastic component 42 is fixed on the top wall of the movable part 3 away from the through hole 210 in the cavity 21, and the end of the second elastic component 42 is connected to a fixing plate 5, and a rotatable rotating column 6 is provided on the fixing plate 5. Specifically, a boss 51 is provided in the center of the fixing plate 5, and a connecting groove 61 is provided at the top center of the rotating column 6 to rotate with the boss 51;

[0024] A push block 7 is provided on the side wall of the rotating column 6. Furthermore, the end face of the push block 7 is configured to be arc-shaped. A slot 62 is provided at the bottom of the rotating column 6. An opening 211 corresponding to the position of the rotating column 6 is provided at the bottom of the cavity 21. A pair of locking grooves 213 are symmetrically provided on the bottom wall of the cavity 21 on both sides of the opening 211. An L-shaped locking block 8 is also provided on the side wall of the rotating column 6. The L-shaped locking block 8 and the locking groove 213 can be plugged in and matched with each other up and down.

[0025] The device further includes a latch 9, the cross-sectional shape of the latch 9 being the same as the cross-sectional shape of the slot 62, and two latches 9 being provided, namely a first latch 9 and a second latch 9 adapted to the first anti-theft component and the second anti-theft component, respectively, and the cross-sectional shapes of the first latch 9 and the second latch 9 being different;

[0026] Specifically, the first elastic component 41 includes a first telescopic rod and a first spring, and the second elastic component 42 includes a second telescopic rod and a second spring.

[0027] The principle of the present invention is as follows: when the nut body 1 is not in use, the first elastic component 41 is in an extended state, pushing the movable part 3 away from the through hole 210 and into contact with the rotating column 6. The push block 7 on the rotating column 6 is located on the side away from the movable part 3. The second elastic component 42 is in an extended state, pushing the fixed seat to the bottom of the cavity 21, so that the L-shaped locking block 8 is plugged into the locking groove 213 in the direction away from the through hole 210. At this time, the wedge block 31 on the movable part 3 is locked in the cavity 21.

[0028] See attached Figure 4-5 When the nut body 1 is used and screwed with the bolt, the slots 62 are all of a specific shape. At this time, the latch 9 is inserted into the slot 62 through the opening 211, and the rotating column 6 is pushed upward, so that the fixed plate 5 squeezes the second elastic member (the second spring and the second telescopic rod are contracted). At the same time, the L-shaped locking block 8 is disengaged from the locking groove 213. Then the latch 9 is rotated to rotate the rotating column 6 90 degrees. After the rotating column 6 rotates, the push block 7 pushes the movable part 3. The push block 7 is set to an arc shape to reduce friction between the movable part 3, reduce wear, and extend the service life. The first elastic member is squeezed (the first spring and the first telescopic rod are contracted), and the wedge block 31 extends from the through hole 210 after the movable member 3 slides. The bolt of the wedge block 31 is locked, thereby realizing the anti-theft function. Then the second elastic member is reset to push the fixed block and the rotating column 6 downward, so that the L-shaped locking block 8 is plugged into the other locking groove 213. Similarly, when unlocking is required, the rotating column 6 is rotated 90 degrees in the opposite direction. The first elastic member is reset to push the movable member 3 to slide, so that the wedge block 31 is retracted into the cavity 21.

[0029] Two anti-theft components are provided to lock both sides of the bolt, thereby improving the locking effect. A first latch 9 and a second latch 9 are provided, and both need to cooperate simultaneously to complete the unlocking, thereby improving the anti-theft effect.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. A combined anti-theft nut, comprising a nut body (1), characterized in that: The nut body (1) is connected to an anti-theft ring (2), the anti-theft ring (2) is provided with an inner hole with the same inner diameter as the anti-theft nut, the anti-theft ring (2) is provided with an anti-theft component, the anti-theft component comprises a cavity (21) provided on one side of the anti-theft ring (2) and a movable part (3) provided in the cavity (21) and capable of sliding radially, the inner wall of the cavity (21) is provided with a through hole (210) connected to the inner hole, the movable part (3) is provided with a wedge block (31) on the side facing the through hole (210), the inner wall of the cavity (21) is fixed with a radially arranged first elastic component (41), the end of the first elastic component (41) is connected to the movable part (3), and the inner wall of the cavity (21) is provided with a radially arranged first elastic component (41), the end of the first elastic component (41) is connected to the movable part (3), and the movable part (3) in the cavity (21) is away from the through hole (210) ) is fixed on the top wall of one side thereof with an axially arranged second elastic component (42), the end of the second elastic component (42) is connected to a fixed plate (5), a rotatable rotating column (6) is provided on the fixed plate (5), a push block (7) is provided on the side wall of the rotating column (6), a slot (62) is provided at the bottom of the rotating column (6), an opening (211) corresponding to the position of the rotating column (6) is provided at the bottom of the cavity (21), a pair of locking grooves (213) are symmetrically provided on both sides of the opening (211), and an L-shaped locking block (8) is provided on the side wall of the rotating column (6); and a latch (9) is also included, the cross-sectional shape of the latch (9) being the same as the cross-sectional shape of the slot (62).

2. A combined anti-theft nut according to claim 1, characterized in that: The anti-theft component is provided with two first anti-theft components and a second anti-theft component, which are respectively provided on both sides of the anti-theft ring (2); the latch (9) is provided with two first latches (9) and a second latch (9) which are respectively adapted to the first anti-theft component and the second anti-theft component; the cross-sectional shapes of the first latch (9) and the second latch (9) are different.

3. The combined anti-theft nut according to claim 1, characterized in that: The first elastic component (41) includes a first telescopic rod and a first spring, and the second elastic component (42) includes a second telescopic rod and a second spring.

4. The combined anti-theft nut according to claim 1, characterized in that: The inner wall of the cavity (21) is provided with a sliding groove (212) opened in a radial direction, and the side wall of the movable part (3) is provided with a sliding block slidably adapted to the sliding groove (212).

5. The combined anti-theft nut according to claim 1, characterized in that: A boss (51) is provided at the center of the fixed plate (5), and a connecting groove (61) rotatably engaged with the boss (51) is provided at the top center of the rotating column (6).

6. The combined anti-theft nut according to claim 1, characterized in that: The end surface of the push block (7) is arranged in an arc shape.

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