A universal anti-theft bolt assembly for multi-energy meters

Abstract

This utility model provides a universal anti-theft bolt assembly for multi-energy meters, belonging to the field of anti-theft bolt technology; it includes: a bolt head, a bolt shank fixedly installed at the bottom of the bolt head, a first nut and a second nut threadedly connected to the outer wall of the bolt shank, a first inner pentagonal hole opened at the top of the bolt head, a second inner pentagonal hole opened in the inner cavity of the bolt head below the first inner pentagonal hole, and an anti-theft post fixedly installed in the inner cavity of the second inner pentagonal hole; this utility model prevents ordinary tools from being inserted by setting the first inner pentagonal hole, and hides the second inner pentagonal hole with a baffle, thus playing a deceptive role and preventing non-workers from discovering its internal structure and making corresponding tools; when subjected to illegal rotation, stress is concentrated at the V-shaped groove, causing the bolt head to break along the groove, leaving the bolt shank unable to be further disassembled, and leaving obvious evidence of destruction.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft bolt technology, and in particular to a universal anti-theft bolt assembly for multi-energy meters. Background Technology

[0002] Special bolts and their components are designed to fix and seal various utility energy meters (collectively referred to as "multi-energy meters") such as water meters, electricity meters, gas meters, and heat meters. Their core purpose is to prevent unauthorized disassembly, tampering, or theft (such as stealing water, electricity, or gas) and to ensure the accuracy and fairness of meter readings.

[0003] Most existing bolts are general-purpose bolts, which can be disassembled using conventional tools, resulting in poor anti-theft performance. Some anti-theft bolts use unconventional hole shapes or anti-theft posts inside the hexagonal socket to prevent conventional tools from being inserted into the socket, thus providing anti-theft protection. However, these anti-theft bolts have a relatively simple anti-theft structure, which is easily damaged by force (such as by cutting or drilling), making their anti-theft effect unsatisfactory. Therefore, this application provides a universal anti-theft bolt assembly for multi-energy meters to meet the needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a universal anti-theft bolt assembly for multi-energy meters to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A universal anti-theft bolt assembly for multi-energy meters includes: a bolt head, a bolt rod fixedly installed at the bottom of the bolt head, a first nut and a second nut threadedly connected to the outer wall of the bolt rod, a first inner pentagonal hole opened at the top of the bolt head, a second inner pentagonal hole opened in the inner cavity of the bolt head and below the first inner pentagonal hole, and an anti-theft post fixedly installed in the inner cavity of the second inner pentagonal hole.

[0007] Both the first nut and the second nut have slots on their outer walls.

[0008] The bottom of the inner wall of the first nut is provided with a threaded groove, and a threaded ring is fixedly installed on the top of the second nut, the threaded ring being threadedly connected to the threaded groove.

[0009] A washer is provided on the outer wall of the bolt head.

[0010] The diameter of the first inner pentagonal hole is larger than that of the second inner pentagonal hole. A boss is formed at the bottom of the first inner pentagonal hole, and a baffle is provided on the top of the boss that fits against the inner wall of the first inner pentagonal hole.

[0011] The bolt rod has a V-shaped annular groove near the bolt head.

[0012] The bolt head has a cover ring with an inner cavity at its bottom and on the outer wall of the V-shaped groove.

[0013] Compared with the prior art, this utility model has at least the following beneficial effects:

[0014] 1. In the above solution, the first inner pentagonal hole is set to prevent ordinary tools from being inserted, and the second inner pentagonal hole is hidden by a baffle to confuse non-workers so that they cannot discover its internal structure and manufacture the corresponding tools.

[0015] 2. In the above solution, when illegal rotation occurs, stress is concentrated at the V-shaped groove, causing the bolt head to break along the groove, leaving the remaining bolt rod unable to be disassembled, and leaving obvious evidence of damage. Attached Figure Description

[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0017] Figure 1 A three-dimensional structural diagram of a universal anti-theft bolt assembly for multi-energy meters;

[0018] Figure 2 A top view of the universal anti-theft bolt assembly for multi-energy meters;

[0019] Figure 3 Schematic diagram of the nut structure for a universal anti-theft bolt assembly for multi-energy meters;

[0020] Figure 4 A partial cross-sectional schematic diagram of a universal anti-theft bolt assembly for multi-energy meters.

[0021] [Figure Labels]

[0022] 1. Bolt head; 2. Bolt shank; 3. First nut; 31. Thread groove; 4. Second nut; 41. Thread ring; 5. Slot; 6. Washer; 7. First inner pentagonal hole; 8. Anti-theft post; 9. Baffle; 10. Second inner pentagonal hole; 11. V-shaped groove; 12. Covering ring.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0024] The following is a detailed description of a universal anti-theft bolt assembly for multi-energy meters provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are listed as best and preferred embodiments; other alternative methods may be used by those skilled in the art. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0025] like Figure 1 and Figure 2 As shown, an embodiment of this utility model provides a universal anti-theft bolt assembly for multi-energy meters, including: a bolt head 1, a bolt rod 2 fixedly installed at the bottom of the bolt head 1, a first nut 3 and a second nut 4 threadedly connected to the outer wall of the bolt rod 2, a first inner pentagonal hole 7 opened at the top of the bolt head 1, a second inner pentagonal hole 10 opened in the inner cavity of the bolt head 1 and below the first inner pentagonal hole 7, and an anti-theft post 8 fixedly installed in the inner cavity of the second inner pentagonal hole 10.

[0026] like Figure 1 and Figure 2 As shown, both the first nut 3 and the second nut 4 have slots 5 on their outer walls. The first nut 3 and the second nut 4 are circular, and can only be rotated by inserting a special tool into the slots 5.

[0027] like Figure 1 and Figure 3 As shown, the bottom of the inner wall of the first nut 3 is provided with a threaded groove 31, and the top of the second nut 4 is fixedly installed with a threaded ring 41. The threaded ring 41 is threadedly connected to the threaded groove 31. By rotating the threaded ring 41 into the first nut 3 and threadedly connecting it to the threaded groove 31, the first nut 3 and the second nut 4 can be connected, thereby preventing loosening.

[0028] like Figure 1 As shown, a washer 6 is provided on the outer wall of the bolt head 1.

[0029] like Figure 2 and Figure 4 As shown, the diameter of the first inner pentagonal hole 7 is larger than that of the second inner pentagonal hole 10. A boss is formed at the bottom of the first inner pentagonal hole 7, and a baffle 9 that fits against the inner wall of the first inner pentagonal hole 7 is provided on the top of the boss. By setting the baffle 9, the second inner pentagonal hole 10 is hidden, so that illegal dismantlers cannot see the specific situation inside.

[0030] like Figure 1 and Figure 4As shown, the bolt rod 2 is provided with a V-shaped annular groove 11 near the bolt head 1. By providing the V-shaped annular groove 11, the bolt rod 2 will be broken and damaged when an unauthorized person performs irregular operation.

[0031] like Figure 1 and Figure 4 As shown, a cover ring 12 with an inner cavity is provided at the bottom of the bolt head 1 and on the outer wall of the V-shaped groove 11. The cover ring 12 blocks the V-shaped groove 11 to avoid detection and improve concealment.

[0032] The technical solution provided by this utility model allows the baffle 9 to be removed first by using a specific key or magnet during operation. Then, the key is inserted into the second inner pentagonal hole 10, so that the force point enters the inside of the bolt rod 2, thereby dispersing the force and preventing the V-shaped annular groove 11 from being damaged by the force.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A universal anti-theft bolt assembly for multi-energy meters, characterized in that, include: A bolt head (1) is provided, and a bolt rod (2) is fixedly installed at the bottom of the bolt head (1). A first nut (3) and a second nut (4) are threadedly connected to the outer wall of the bolt rod (2). A first inner pentagonal hole (7) is provided at the top of the bolt head (1). A second inner pentagonal hole (10) is provided in the inner cavity of the bolt head (1) and below the first inner pentagonal hole (7). An anti-theft post (8) is fixedly installed in the inner cavity of the second inner pentagonal hole (10).

2. The multi-utility meter universal anti-theft bolt assembly as claimed in claim 1 wherein, The outer walls of both the first nut (3) and the second nut (4) are provided with slots (5).

3. The multi-utility meter universal anti-theft bolt assembly of claim 1, wherein, The bottom of the inner wall of the first nut (3) is provided with a threaded groove (31), and the top of the second nut (4) is fixedly installed with a threaded ring (41), which is threadedly connected to the threaded groove (31).

4. The multi-utility meter universal anti-theft bolt assembly of claim 1, wherein, The outer wall of the bolt head (1) is provided with a washer (6).

5. The multi-utility meter universal anti-theft bolt assembly of claim 1, wherein, The diameter of the first inner pentagonal hole (7) is larger than that of the second inner pentagonal hole (10). A boss is formed at the bottom of the first inner pentagonal hole (7), and a baffle (9) that fits against the inner wall of the first inner pentagonal hole (7) is provided on the top of the boss.

6. The multi-utility meter universal anti-theft bolt assembly of claim 1, wherein, The bolt rod (2) has a V-shaped annular groove (11) near the bolt head (1).

7. The multi-utility meter universal anti-theft bolt assembly of claim 1, wherein, The bolt head (1) has a cover ring (12) with an inner cavity at the bottom and on the outer wall of the V-shaped groove (11).

Images