Anti-loosening and anti-back-off combined anti-theft nut

Abstract

The utility model relates to the field of theftproof nut, specifically relates to a kind of anti-loosening anti-back combined theftproof nut, including anti-loosening anti-back mechanism, for theftproof nut anti-loosening anti-back.The utility model relates to a kind of anti-loosening anti-back combined theftproof nut, by the setting of anti-loosening anti-back mechanism, nut main part and second gear tooth, by fixed ring is sleeved in screw rod outside, when fixed ring is fixed in the desired position outside screw rod, by hexagonal lifter insertion first threaded rod and second threaded rod one end inside the hexagonal groove set in twist, so that first threaded rod and second threaded rod push clamping block stick in the recess in screw rod inside, and limit block is pressed against screw rod outside, strengthen the stability of fixed ring, first threaded rod and second threaded rod twist by the extrusion of external jamb block first gear tooth underside, so that first gear tooth moves from fixed ring, then again nut main part is sleeved in screw rod outside twist, so that the second gear tooth below nut main part is close to first gear tooth side surface and realizes anti-back effect.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft nuts, specifically to an anti-loosening and anti-retraction combination anti-theft nut. Background Technology

[0002] Anti-theft nuts are a type of product specifically designed to prevent loosening and theft in the fastening parts of mechanical components. Currently, nuts used for fastening are widely used and can be seen everywhere. However, ordinary nuts are relatively easy to install and remove. Therefore, if ordinary nuts are used to fix various electrical and mechanical equipment in some special locations, they can easily be damaged by criminals.

[0003] A search revealed a utility model of a circular anti-theft nut with publication number CN211259324U. The nut includes an anti-theft nut body with a cylindrical outer surface. A hexagonal protrusion with a matching through hole for rotating with an external hexagonal wrench is fitted and fixed to one end of the nut body. The inner side of the threaded hole in the nut body has one or more arc-shaped grooves in the same direction as the thread. One end of each arc-shaped groove is a deep vertical groove, and the other end transitions to the threaded arc. Each arc-shaped groove contains a steel ball with a diameter equal to the depth of the vertical groove. This utility model's anti-theft nut can be easily installed and tightened with a common external hexagonal wrench.

[0004] Currently, some anti-theft nuts are designed to protect against both criminals and users. However, when users need to remove the nuts, it is not easy and requires destructive methods, causing inconvenience. In the comparative case mentioned above, the round anti-theft nut serves an anti-theft function, but it cannot effectively prevent loosening and backing. As a result, the anti-theft nut is prone to loosening after being subjected to vibration, impact, or long-term use. This loosening can lead to unstable connections between mechanical components, thereby affecting the normal operation of the entire mechanical system.

[0005] Therefore, it is necessary to invent a non-loosening, non-returning, combination anti-theft nut to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a combination anti-loosening and anti-reverse anti-theft nut. A retaining ring is fitted over a screw rod. Once the retaining ring is fixed in the desired position on the screw rod, a hexagonal screwdriver is inserted into the hexagonal grooves inside one end of the first and second threaded rods and tightened. This causes the first and second threaded rods to push a clamping block against the groove inside the screw rod, while a limiting block presses against the outside of the screw rod, enhancing the stability of the retaining ring. When the first and second threaded rods are tightened, an external top block presses against the lower side of the first gear, causing the first gear to move out of the retaining ring. Then, the nut body is fitted over the screw rod and tightened, causing the second gear below the nut body to approach the side of the first gear. This achieves an anti-reverse effect, solving the problem of the circular anti-theft nut mentioned in the comparative case in the background art, which, while providing anti-theft protection, cannot effectively prevent loosening and reversal. Consequently, the anti-theft nut is prone to loosening after vibration, impact, or long-term use. This loosening leads to unstable connections between mechanical components, affecting the normal operation of the entire mechanical system.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combination anti-loosening and anti-retraction nut, including an anti-loosening and anti-retraction mechanism for preventing the anti-theft nut from loosening and retraction;

[0008] An anti-loosening and anti-retraction mechanism is installed on the outside of the screw. The inner surface of the screw has a groove. The anti-loosening and anti-retraction mechanism includes a fixing ring, a first threaded rod, and a second threaded rod. The screw is threadedly connected to a nut body. A second machine tooth is fixedly connected around the lower part of the nut body.

[0009] Preferably, the fixing ring is sleeved on the outside of the screw, and a protrusion is fixedly connected to the inner side of the fixing ring. The first threaded rod and the second threaded rod pass through both sides of the fixing ring, and a clamping block is provided at the inner end of the first threaded rod, and a limiting block is provided at the inner end of the second threaded rod.

[0010] Preferably, hexagonal grooves are formed on the outer end surfaces of the first threaded rod and the second threaded rod, and the first threaded rod, the second threaded rod, and the retaining ring are threadedly connected.

[0011] Preferably, the first threaded rod and the second threaded rod are provided with a top block on their exterior, and one side of the top block is inclined.

[0012] Preferably, the inner two sides of the fixed ring are movably connected to the first gear, the outer side of the first gear is fixedly connected to the connecting plate, and a spring is provided above the connecting plate.

[0013] Preferably, the second gear below the nut body is in the opposite direction to the first gear inside the retaining ring.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] This invention, through the design of an anti-loosening and anti-retraction mechanism, a nut body, and a second gear, effectively prevents the nut body from loosening and retraction, thereby improving its stability. A fixing ring is fitted over the screw rod. Once the fixing ring is in the desired position, a hexagonal screwdriver is inserted into the hexagonal grooves at one end of the first and second threaded rods and tightened. This causes the first and second threaded rods to push the clamping block against the groove inside the screw rod, while a limiting block presses against the outside of the screw rod, enhancing the stability of the fixing ring. During tightening, the external top block presses against the lower side of the first gear, causing it to move out of the fixing ring. Then, the nut body is fitted over the screw rod and tightened, causing the second gear below the nut body to approach the side of the first gear, thus achieving the anti-retraction effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixing ring structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the anti-loosening and anti-retreat mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the screw structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the main structure of the nut of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Anti-loosening and anti-retraction mechanism; 101. Fixing ring; 102. Protrusion; 103. First threaded rod; 104. Second threaded rod; 105. Clamping block; 106. Limiting block; 107. Hexagonal groove; 108. Top block; 109. First gear; 110. Connecting plate; 111. Spring; 2. Screw; 3. Groove; 4. Nut body; 5. Second gear. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5 The present invention relates to a combination anti-loosening and anti-retraction anti-theft nut, comprising an anti-loosening and anti-retraction mechanism 1 for preventing the anti-theft nut from loosening and retracting;

[0026] An anti-loosening and anti-retraction mechanism 1 is installed on the outside of the screw 2. A groove 3 is provided on the inner surface of the screw 2. The anti-loosening and anti-retraction mechanism 1 includes a retaining ring 101, a first threaded rod 103, and a second threaded rod 104. A nut body 4 is threadedly connected to the outside of the screw 2. Second machine teeth 5 are fixedly connected around the lower part of the nut body 4. The retaining ring 101 is fitted onto the outside of the screw 2. After the retaining ring 101 is fixed in the desired position on the outside of the screw 2, a hexagonal screwdriver is inserted into the hexagonal groove 107 opened inside one end of the first threaded rod 103 and the second threaded rod 104 to tighten it. This causes the first threaded rod 103 and the second threaded rod 104 to push the clamping block 105 into the groove 3 inside the screw 2, while the limiting block 106 presses against the outside of the screw 2 to enhance the stability of the fixing ring 101. When the first threaded rod 103 and the second threaded rod 104 are turned, the external top block 108 presses against the lower side of the first gear 109, causing the first gear 109 to move out of the fixing ring 101. Then, the nut body 4 is put on the outside of the screw 2 and turned, so that the second gear 5 below the nut body 4 approaches the side of the first gear 109, thus achieving the anti-reverse effect.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the retaining ring 101 is sleeved on the outside of the screw 2. A protrusion 102 is fixedly connected to the inner side of the retaining ring 101. The first threaded rod 103 and the second threaded rod 104 pass through the two sides of the retaining ring 101 respectively. A clamping block 105 is provided at the inner end of the first threaded rod 103, and a limiting block 106 is provided at the inner end of the second threaded rod 104. By rotating the first threaded rod 103, the clamping block 105 at one end is pushed to fit against the inner wall of the groove 3 inside the screw 2, while rotating the second threaded rod 104 pushes the limiting block 106 at one end to fit against the outside of the screw 2, thereby improving the stability of the retaining ring 101 outside the screw 2.

[0028] like Figure 2 and Figure 3 As shown, hexagonal grooves 107 are formed on the outer end surfaces of the first threaded rod 103 and the second threaded rod 104. The first threaded rod 103, the second threaded rod 104 and the retaining ring 101 are threaded together. Because the hexagonal grooves 107 are formed on the outer end surfaces of the first threaded rod 103 and the second threaded rod 104, they can only be turned with a hexagonal screwdriver, thus preventing others from turning them.

[0029] like Figure 3 As shown, a top block 108 is provided on the outside of the first threaded rod 103 and the second threaded rod 104. One side of the top block 108 is inclined. When the first threaded rod 103 and the second threaded rod 104 are rotated, the top block 108 is moved to both sides inside the fixed ring 101. Since one side of the top block 108 and both sides of the lower end of the first gear 109 are inclined, the first gear 109 can be squeezed and pushed out of the fixed ring 101.

[0030] like Figure 3 As shown, the inner sides of the fixed ring 101 are movably connected to the first gear 109, and the outer side of the first gear 109 is fixedly connected to the connecting plate 110. A spring 111 is provided above the connecting plate 110. When the first gear 109 loses the pressure of the top block 108, it is pushed back by the spring 111 above the connecting plate 110 on one side of the first gear 109, pushing the first gear 109 to extend and retract into the fixed ring 101, so that the nut body 4 can be rotated.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the second gear 5 below the nut body 4 is in the opposite direction to the first gear 109 inside the fixing ring 101. By having the second gear 5 below the nut body 4 approach the side of the first gear 109, and since the second gear 5 is in the opposite direction to the first gear 109, the anti-retraction effect can be achieved.

[0032] The working principle of this utility model is as follows: First, the retaining ring 101 and the internal protrusion 102 are fitted onto the groove 3 outside the screw rod 2. When it is necessary to fix the retaining ring 101 to the outside of the screw rod 2, a hexagonal screwdriver is inserted into the hexagonal groove 107 inside one end of the first threaded rod 103 and the second threaded rod 104 and screwed in. This causes the first threaded rod 103 and the second threaded rod 104 to push the clamping block 105 into the groove 3 inside the screw rod 2, while the limiting block 106 abuts against the outside of the screw rod 2, enhancing the stability of the retaining ring 101. When the first threaded rod 103 and the second threaded rod 104 are screwed in, the external top block 108 presses against the lower side of the first gear 109, causing the first gear 109 to move out of the retaining ring 101. Then, the nut body 4 is fitted onto the outside of the screw rod 2 and screwed in, causing the second gear 5 below the nut body 4 to abut against the groove 3. The first gear 109 is positioned close to the side, which not only prevents loosening and retraction but also serves as an anti-theft measure. When the nut body 4 needs to be removed, simply insert a hex screwdriver back into the hexagonal groove 107 in the first threaded rod 103 and the second threaded rod 104, and then rotate the hex screwdriver to rotate the first threaded rod 103 and the second threaded rod 104. This causes the outer top block 108 to extend and retract to the rear, causing the first gear 109 to lose its compression. Through the compression and rebound by the connecting plate 110 and the spring 111 on one side, the first gear 109 extends and retracts into the fixing ring 101. In this way, the second gear 5 below the nut body 4 loses the limitation of the first gear 109, and the nut body 4 can be removed by turning it counterclockwise. This completes the use of the anti-loosening and anti-retraction combination anti-theft nut.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A combination anti-loosening and anti-reverse anti-theft nut, characterized in that: Includes an anti-loosening and anti-retraction mechanism (1) for preventing the anti-theft nut from loosening and retracting; An anti-loosening and anti-retraction mechanism (1) is installed on the outside of the screw (2). The inner surface of the screw (2) is provided with a groove (3). The anti-loosening and anti-retraction mechanism (1) includes a fixing ring (101), a first threaded rod (103), and a second threaded rod (104). The screw (2) is threadedly connected to a nut body (4). The nut body (4) is fixedly connected to the lower periphery of the nut body (4). A second machine tooth (5) is fixedly connected to the lower periphery.

2. The anti-loosening, anti-retraction, combined anti-theft nut according to claim 1, characterized in that: The fixing ring (101) is sleeved on the outside of the screw (2). A protrusion (102) is fixedly connected to the inner side of the fixing ring (101). The first threaded rod (103) and the second threaded rod (104) pass through the two sides of the fixing ring (101). A clamping block (105) is provided at the inner end of the first threaded rod (103), and a limiting block (106) is provided at the inner end of the second threaded rod (104).

3. The anti-loosening, anti-reverse combination anti-theft nut according to claim 1, characterized in that: The outer end surfaces of the first threaded rod (103) and the second threaded rod (104) are provided with hexagonal grooves (107), and the first threaded rod (103), the second threaded rod (104) and the retaining ring (101) are threaded together.

4. The anti-loosening, anti-retraction, combined anti-theft nut according to claim 1, characterized in that: The first threaded rod (103) and the second threaded rod (104) are provided with a top block (108) on the outside, and one side of the top block (108) is set as an inclined surface.

5. The anti-loosening, anti-retraction, combined anti-theft nut according to claim 1, characterized in that: The inner sides of the fixed ring (101) are movably connected to the first gear (109), and the outer side of the first gear (109) is fixedly connected to the connecting plate (110). A spring (111) is provided above the connecting plate (110).

6. The anti-loosening, anti-retraction, combined anti-theft nut according to claim 1, characterized in that: The second gear (5) below the nut body (4) is in the opposite direction to the first gear (109) inside the retaining ring (101).

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