Anti-theft structure of anti-theft bolt
By designing the drive mechanism and hidden limit slots in the anti-theft bolts, the problem of poor anti-theft effect of the existing anti-theft bolts is solved, and higher anti-theft ability is achieved to prevent equipment from being stolen.
Patent Information
- Application Number
- CN202421649123.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The anti-theft bolts have poor anti-theft effect, the end of the screw is easily rotated by ordinary tools, and the limit slot is easily moved, resulting in the equipment being easily theft.
An anti-theft structure of anti-theft bolts is designed, and a driving mechanism is provided on the bolt body, including a rotating barrel, nut, limiting block and umbrella cylinder. The limiting groove is hidden deep in the anti-theft bolt, and can only be rotated by special tools to enhance the anti-theft.
By setting up the drive mechanism and hidden limit slots, it is difficult to rotate the bolts with ordinary tools, which improves the anti-theft ability of the anti-theft bolts and prevents the equipment from being stolen.
Smart Images
Figure CN222910517U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-theft bolts, in particular to an anti-theft structure of an anti-theft bolt. Background Art
[0002] At present, many municipal and public facilities and equipment are often stolen, misappropriated and damaged, such as manhole covers, transformers, street lamp facilities, cables, etc. If effective anti-theft measures are not adopted or only simple locks are used for anti-theft when installing these facilities and equipment, these equipment and facilities will be easily damaged and stolen. The anti-theft bolt is a component used to prevent outdoor equipment from being stolen.
[0003] In the prior art, many anti-theft bolts prevent theft by setting irregular shapes at the ends of their screw rods. However, many ends of the screw rods still protrude a lot and can be rotated by a wrench, and the anti-theft effect is average. Therefore, it is necessary to design an anti-theft structure of an anti-theft bolt to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an anti-theft structure of an anti-theft bolt.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An anti-theft structure of an anti-theft bolt, comprising a bolt body. Two limiting grooves are opened on the side wall of the bolt body. A driving mechanism for driving the bolt body to rotate is arranged on the bolt body. The driving mechanism includes a rotating cylinder arranged on the bolt body. A nut is fixedly connected to the upper end of the rotating cylinder. Limiting blocks capable of cooperating with the limiting grooves are arranged on both side walls of the rotating cylinder. An anti-theft cylinder is fixedly connected to the side wall of the bolt body. An umbrella-shaped cylinder is fixedly connected to the side wall of the anti-theft cylinder. A first moving rod and a second moving rod are respectively fixedly connected to the side walls of the two limiting blocks. A protection mechanism for protecting the nut is arranged on the side wall of the rotating cylinder.
[0007] Preferably, the protection mechanism includes a fixed cylinder fixedly connected to the side wall of the rotating cylinder, and the upper end of the fixed cylinder is flush with the upper end of the nut.
[0008] Preferably, the outer diameter of the fixed cylinder is the same as the outer diameter of the anti-theft cylinder, and the inner wall of the rotating cylinder is slidably connected to the side wall of the bolt body.
[0009] Preferably, the cross section of the nut is a heptagon, and a protection cylinder is arranged on the side wall of the fixed cylinder.
[0010] Preferably, the protection cylinder is threadedly connected to the fixed cylinder, and two arc-shaped grooves are opened on the side wall of the bolt body.
[0011] Preferably, the cross-sections of the first moving rod and the second moving rod are L-shaped, and one end of the second moving rod away from the limiting block penetrates through the side wall of the first moving rod.
[0012] In the utility model, the following beneficial effects are achieved:
[0013] 1. A driving mechanism is provided in the device. Most of the end of the bolt is in an umbrella shape, making it difficult to rotate with ordinary tools. The limiting groove that can rotate the bolt is deeply hidden in the anti-theft cylinder, and the bolt body cannot be rotated without using a special workpiece. Moreover, the upper end of the bolt body is flush with the upper end of the anti-theft cylinder, and the distance is small, so the bolt body cannot be screwed with a vise, thus greatly improving the anti-theft ability of the bolt.
[0014] 2. A fixing cylinder is provided in the device. To unscrew the nut of the bolt body, a special sleeve is also required, further improving the anti-theft effect of the bolt.
[0015] 3. A protective cylinder is provided in the device. The protective cylinder can not only prevent rainwater and dust from accumulating in the gap between the anti-theft cylinder and the bolt body, but also prevent rainwater and dust from accumulating in the gap between the fixing cylinder and the nut, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of an anti-theft structure of an anti-theft bolt proposed by the utility model;
[0017] Figure 2 is a side view of an anti-theft structure of an anti-theft bolt proposed by the utility model;
[0018] Figure 3 is Figure 2 a side cross-sectional view of
[0019] In the figure: 1 bolt body, 2 anti-theft cylinder, 3 limiting block, 4 limiting groove, 5 arc groove, 6 first moving rod, 7 second moving rod, 8 rotating cylinder, 9 nut, 10 fixing cylinder, 11 protective cylinder, 12 umbrella-shaped cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0021] Referring to Figures 1-3An anti-theft structure of an anti-theft bolt comprises a bolt body 1, two limiting grooves 4 are arranged on the side wall of the bolt body 1, a driving mechanism for driving the bolt body 1 to rotate is arranged on the bolt body 1, the driving mechanism comprises a rotating cylinder 8 arranged on the bolt body 1, a nut 9 is fixedly connected to the upper end of the rotating cylinder 8, limiting blocks 3 which can cooperate with the limiting grooves 4 are arranged on both side walls of the rotating cylinder 8, an anti-theft cylinder 2 is fixedly connected to the side wall of the bolt body 1, an umbrella-shaped cylinder 12 is fixedly connected to the side wall of the anti-theft cylinder 2, and the side walls of the two limiting blocks 3 are respectively fixedly connected to the first moving rod 6 and the second moving rod 7.
[0022] The side wall of the rotating cylinder 8 is provided with a protection mechanism for protecting the nut 9 , and the protection mechanism includes a fixed cylinder 10 fixedly connected to the side wall of the rotating cylinder 8 , and the upper end of the fixed cylinder 10 is flush with the upper end of the nut 9 .
[0023] In the utility model, the outer circle diameter of the fixed cylinder 10 is the same as the outer circle diameter of the anti-theft cylinder 2, and the protective cylinder 11 can also be threadedly connected to the anti-theft cylinder 2, which can protect the gap between the anti-theft cylinder 2 and the bolt body 1 to prevent rainwater and dust accumulation, and the inner wall of the rotating cylinder 8 is slidingly connected to the side wall of the bolt body 1.
[0024] In the utility model, a fixing cylinder 10 is fixedly connected to the side wall of the rotating cylinder 8, and the upper end of the fixing cylinder 10 is flush with the upper end of the nut 9. The gap between the fixing cylinder 10 and the nut 9 is very small, so that the nut 9 can only be screwed with a specific thin sleeve, and cannot be screwed by a conventional maintenance sleeve.
[0025] In the utility model, the cross-section of the nut 9 is a heptagon, which is unusual and cannot be twisted by a common sleeve, further improving the anti-theft effect. A protective tube 11 is provided on the side wall of the fixing tube 10, which can prevent rainwater and dust from accumulating between the fixing tube 10 and the nut 9.
[0026] In the utility model, the protective tube 11 is threadedly connected to the fixed tube 10, and two arc grooves 5 are opened on the side wall of the bolt body 1. The arc groove 5 is opened on the adjacent limit groove 4. The arc surface can prevent unrelated personnel from using a rod to try to forcibly insert it into the limit groove 4 to move the bolt body 1. The bolt body 1 in the anti-theft tube 2 is a cylinder without threads on the surface.
[0027] In the present invention, the first moving rod 6 and the second moving rod 7 have L-shaped cross sections, and one end of the second moving rod 7 away from the limiting block 3 penetrates the side wall of the first moving rod 6 to facilitate pushing the two limiting blocks 3 .
[0028] In use, by moving the first moving rod 6 and the second moving rod 7, most of the two limit blocks 3 are pulled out of the rotating cylinder 8, the rotating cylinder 8 is placed on the bolt body 1, and then an external tool such as a needle is used to push the two limit blocks 3 into the limit groove 4. Align the bolt body 1 with the threaded hole of the workpiece, use the sleeve of a special nut 9 to screw the bolt body 1 into the workpiece, and then pull the first moving rod 6 and the second moving rod 7 so that the two limit blocks 3 move out of the limit groove 4 and are located between the bolt body 1 and the anti-theft cylinder 2. Then remove the rotating cylinder 8. Since the limit groove 4 is located deep in the anti-theft cylinder 2, the bolt body 1 cannot be rotated without using a special workpiece. Moreover, the upper end of the bolt body 1 is flush with the upper end of the anti-theft cylinder 2 and the distance is small, so the bolt body 1 cannot be screwed by a vise, thereby improving the anti-theft ability of the bolt.
[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and practical concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. An anti-theft structure of an anti-theft bolt, comprising a bolt body (1), characterized in that: The side wall of the bolt body (1) is provided with two limit grooves (4), and the bolt body (1) is provided with a driving mechanism for driving the bolt body (1) to rotate. The driving mechanism comprises a rotating cylinder (8) arranged on the bolt body (1), and a nut (9) is fixedly connected to the upper end of the rotating cylinder (8). Both side walls of the rotating cylinder (8) are provided with limit blocks (3) that can cooperate with the limit grooves (4). The side wall of the bolt body (1) is fixedly connected with an anti-theft cylinder (2), and the side wall of the anti-theft cylinder (2) is fixedly connected with an umbrella-shaped cylinder (12). The side walls of the two limit blocks (3) are respectively fixedly connected with a first moving rod (6) and a second moving rod (7), and the side wall of the rotating cylinder (8) is provided with a protective mechanism for protecting the nut (9).
2. The anti-theft structure of the anti-theft bolt according to claim 1, characterized in that: The protection mechanism comprises a fixed cylinder (10) fixedly connected to the side wall of the rotating cylinder (8), and the upper end of the fixed cylinder (10) is flush with the upper end of the nut (9).
3. The anti-theft structure of the anti-theft bolt according to claim 2, characterized in that: The outer diameter of the fixed cylinder (10) is the same as the outer diameter of the anti-theft cylinder (2), and the inner wall of the rotating cylinder (8) is slidably connected to the side wall of the bolt body (1).
4. The anti-theft structure of the anti-theft bolt according to claim 3, characterized in that: The cross section of the nut (9) is a heptagon, and the side wall of the fixing tube (10) is provided with a protective tube (11).
5. The anti-theft structure of the anti-theft bolt according to claim 4, characterized in that: The protective tube (11) is threadedly connected to the fixing tube (10), and the side wall of the bolt body (1) is provided with two arc-shaped grooves (5).
6. The anti-theft structure of the anti-theft bolt according to claim 5, characterized in that: The first moving rod (6) and the second moving rod (7) have L-shaped cross-sections, and the end of the second moving rod (7) away from the limiting block (3) passes through the side wall of the first moving rod (6).