A theft-proof locking device for cable trench covers
By setting anti-theft locking structures and auxiliary protective structures on the cable trench cover, the problem of poor anti-theft effect of bolt fixing method is solved, and the disassembly process is simplified and the anti-theft effect is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGYE INTELLIGENT POWER TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-23
AI Technical Summary
The existing bolt-fixing method for cable trench covers has limited anti-theft effectiveness, and the disassembly process is time-consuming and labor-intensive.
It adopts an anti-theft locking structure, including a rectangular insert and an auxiliary protective structure. Through the design of rectangular locking slots and locking blocks, the cover plate can be removed in a specific position, and other cover plates must be removed in sequence, increasing the difficulty of theft. The cover plate is fixed by a threaded locking rod to improve anti-theft performance.
It improves the anti-theft performance of cable trench covers, simplifies the disassembly process, and reduces the possibility of theft.
Smart Images

Figure CN224401130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of anti-theft locking devices, and in particular to an anti-theft locking device for cable trench covers. Background Technology
[0002] Cable trenches are underground conduits used for laying and replacing power or telecommunications cables. They also serve as enclosure structures for the cables being laid. Cable trenches are typically topped with covers to protect the cables inside. These covers are usually secured with bolts or other methods, making them difficult to install or remove and thus serving as a theft prevention measure.
[0003] In practical applications, existing anti-theft locking devices have relatively complete structures and functions, and can meet basic usage requirements. However, the following problems still exist:
[0004] Using bolts to secure the cable trench has limited effectiveness in preventing theft. Furthermore, bolts not only make it difficult for thieves to operate the cable trench, but also make subsequent normal operation and maintenance procedures complicated, requiring the removal of multiple bolts, which is very time-consuming and labor-intensive.
[0005] Therefore, this utility model provides an anti-theft locking device for cable trench covers. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies and provide an anti-theft locking device for cable trench covers.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cable trench cover anti-theft locking device, comprising a cable trench frame and a cover body, wherein an anti-theft locking structure is provided between the cable trench frame and the cover body, the anti-theft locking structure comprising two rectangular rods, the two rectangular rods being fixedly connected to two sides of the cable trench frame respectively, and mounting plates being fixedly connected to the other two opposite sides of the cable trench frame, the mounting plates being disposed between the two rectangular rods; an auxiliary protective structure is provided on the top of the cover body, the auxiliary protective structure comprising a rectangular locking groove, the rectangular locking groove being opened on the top of the cover body, and an operating groove being opened at the bottom of the rectangular locking groove.
[0008] In a preferred embodiment, a rectangular clamping plate is fixedly connected to the top of the mounting plate, a first screw hole is provided on one side of the rectangular clamping plate, a rectangular ring frame is fixedly connected to the bottom of the cover plate, a rectangular insert rod is inserted into the inner wall of the rectangular ring frame, a rectangular slot is provided at the bottom of the rectangular ring frame, the rectangular clamping plate is inserted into the inner wall of the rectangular slot, and a second screw hole is provided on one side of one of the rectangular ring frames, and a first threaded clamping rod is threadedly connected to the inner wall of the first screw hole and the second screw hole.
[0009] The technical effect of adopting the above-mentioned further solution is as follows: Under the action of the rectangular card plate, it can cooperate with the rectangular card slot at the bottom of the rectangular ring frame, so that the cover plate can move on the left and right sides of the rectangular card plate, and can be inserted and fixed with the rectangular plug. At the same time, the cover plate can only be moved left and right from the rectangular card plate at the top of the mounting plate. At this time, it is only necessary to control the length of the two rectangular plugs, that is, the length of the two rectangular plugs can be different, so that the position of the mounting plate is different. The mounting plate is always in the space between the two rectangular plugs. Therefore, the cover plate cannot be disassembled without knowing the position of the mounting plate, thus achieving anti-theft locking.
[0010] In a preferred embodiment, a rectangular locking block is engaged with the inner wall of the rectangular locking slot, a cover plate is fixedly connected to the top of the rectangular locking block, and a rectangular protrusion is fixedly connected to the top of the outer surface of the cover plate.
[0011] The technical effect of adopting the above-mentioned further solution is that the cover plate can block the operating slot, and the operating slot can be used to install the rectangular ring frame with the second screw hole, thereby allowing drilling or disassembly, which facilitates operation.
[0012] In a preferred embodiment, a third screw hole is provided on the top of the cover plate, and a fourth screw hole is provided on the top of the cover plate. The inner walls of the third screw hole and the fourth screw hole are threadedly connected to a second threaded rod.
[0013] The technical effect of adopting the above-mentioned further solution is that the second threaded clamp can fix the cover plate and the cover plate, thereby further protecting the operating groove, etc., further reducing the possibility that thieves will find a detachable cover plate, and thus improving the overall anti-theft performance.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] By setting up an anti-theft locking structure, among multiple cover plates, one cover plate is easily disassembled, while the others can only be disassembled after the cover plate with the second screw hole is removed. The position of the cover plate with the second screw hole can be randomly installed, making it impossible for thieves to accurately know the location of the cover plate, thus increasing the difficulty of theft and improving the overall anti-theft performance. By setting up an auxiliary protective structure, the rectangular locking groove and operating groove can be protected by the cover plate. Furthermore, with the action of the second threaded rod, the third screw hole, and the fourth screw hole, the cover plate cannot be easily lifted, thus increasing the difficulty of theft for thieves. Attached Figure Description
[0016] Figure 1A schematic diagram of the structure of an anti-theft locking device for cable trench covers provided by this utility model;
[0017] Figure 2 A schematic diagram of the mounting plate structure of the anti-theft locking device for cable trench covers provided by this utility model;
[0018] Figure 3 A schematic diagram of the rectangular ring frame of an anti-theft locking device for cable trench covers provided by this utility model;
[0019] Figure 4 A schematic diagram of the structure of the cover plate of an anti-theft locking device for cable trench covers provided by this utility model.
[0020] Legend:
[0021] 1. Cable trench frame; 2. Cover plate;
[0022] 3. Anti-theft locking structure; 31. Rectangular insert rod; 32. Mounting plate; 33. Rectangular locking plate; 34. First screw hole; 35. Rectangular ring frame; 36. Rectangular slot; 37. Second screw hole; 38. First threaded locking rod;
[0023] 4. Auxiliary protective structure; 41. Rectangular slot; 42. Rectangular block; 43. Operating slot; 44. Cover plate; 45. Third screw hole; 46. Fourth screw hole; 47. Second threaded rod; 48. Rectangular protrusion. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figures 1-4As shown, this embodiment provides a technical solution: an anti-theft locking device for cable trench covers, including a cable trench frame 1 and a cover body 2. An anti-theft locking structure 3 is provided between the cable trench frame 1 and the cover body 2. The anti-theft locking structure 3 includes two rectangular rods 31, which are fixedly connected to the two sides of the cable trench frame 1 respectively. Mounting plates 32 are fixedly connected to the other two opposite sides of the cable trench frame 1, and the mounting plates 32 are disposed between the two rectangular rods 31. An auxiliary protection structure 4 is provided on the top of the cover body 2. The auxiliary protection structure 4 includes a rectangular locking groove 41, which is opened on the top of the cover body 2. An operating groove 43 is opened at the bottom of the rectangular locking groove 41. By setting the anti-theft locking structure 3, Among the multiple cover plates 2, one cover plate 2 is designed to be easily disassembled, while the other cover plates 2 can only be disassembled after the cover plate 2 with the second screw hole 37 has been disassembled. The position of the cover plate 2 with the second screw hole 37 can be randomly installed, making it impossible for thieves to accurately know the position of the cover plate 2, thereby increasing the difficulty of theft and improving the overall anti-theft performance. By setting the auxiliary protective structure 4, the rectangular locking groove 41 and the operating groove 43 can be covered and protected by the cover plate 44. Furthermore, under the action of the second threaded locking rod 47, the third screw hole 45, and the fourth screw hole 46, the cover plate 44 cannot be easily lifted, thereby increasing the difficulty of theft for thieves.
[0026] Going a step further, such as Figures 2-3 As shown: A rectangular clamping plate 33 is fixedly connected to the top of the mounting plate 32. A first screw hole 34 is provided on one side of the rectangular clamping plate 33. A rectangular ring frame 35 is fixedly connected to the bottom of the cover plate 2. A rectangular insert rod 31 is inserted into the inner wall of the rectangular ring frame 35. A rectangular slot 36 is provided at the bottom of the rectangular ring frame 35. The rectangular clamping plate 33 is inserted into the inner wall of the rectangular slot 36. A second screw hole 37 is provided on one side of one of the rectangular ring frames 35. A first threaded clamping rod 38 is threadedly connected to the inner wall of the first screw hole 34 and the second screw hole 37. Under the action of the rectangular clamping plate 33, it can cooperate with the rectangular ring frame 35 at the bottom. The rectangular slot 36 allows the cover plate 2 to move to the left and right sides of the rectangular card plate 33, thus enabling it to be inserted and fixed with the rectangular insert rod 31. At the same time, the cover plate 2 can only be moved left and right from the rectangular card plate 33 at the top of the mounting plate 32. At this time, it is only necessary to control the length of the two rectangular insert rods 31, that is, the lengths of the two rectangular insert rods 31 can be different, thus making the position of the mounting plate 32 different. The mounting plate 32 is always in the space between the two rectangular insert rods 31. Therefore, without knowing the position of the mounting plate 32, the cover plate 2 cannot be disassembled, thus enabling anti-theft locking.
[0027] The above solutions also have the problem of exposed operating slot 43, making the bottom anti-theft structure very easy to see, such as... Figure 4As shown: In this solution, a rectangular locking block 42 is engaged with the inner wall of the rectangular locking slot 41, and a cover plate 44 is fixedly connected to the top of the rectangular locking block 42. A rectangular protrusion 48 is fixedly connected to the top of the outer surface of the cover plate 44. The cover plate 44 can block the operating slot 43. The operating slot 43 can be used to install the rectangular ring frame 35 with the second screw hole 37, and can be drilled or disassembled to facilitate operation.
[0028] The above solution also has the problem that the rectangular locking block 42 is very easy to separate from the rectangular locking slot 41, which makes the cover plate 44 easy to lift up. Figure 4 As shown, a third screw hole 45 is provided on the top of the cover plate 2, and a fourth screw hole 46 is provided on the top of the cover plate 44. The inner walls of the third screw hole 45 and the fourth screw hole 46 are threaded with a second threaded clamp 47. The second threaded clamp 47 can fix the cover plate 2 and the cover plate 44, thereby further protecting the operating groove 43, etc., further reducing the possibility that thieves will find a detachable cover plate 2, and thus improving the overall anti-theft performance.
[0029] Working principle:
[0030] like Figure 1-4 As shown:
[0031] In use: When in use, the rectangular slot 36 at the bottom of the rectangular ring frame 35 passes through the rectangular plate 33. At this time, the rectangular ring frame 35 is moved left and right so that the rectangular ring frame 35 can be inserted with the rectangular insert rod 31. Then, they are arranged in sequence. When the last rectangular ring frame 35 is engaged with the rectangular plate 33, a hole is drilled in the rectangular ring frame 35 from the operating slot 43, and then the first threaded rod 38 is fixed with the first screw hole 34 and the second screw hole 37.
[0032] At this point, the rectangular locking block 42 is engaged with the rectangular locking groove 41, thereby covering the operating groove 43. Then, the second threaded locking rod 47 is fixed with the third screw hole 45 and the fourth screw hole 46, thereby fixing the cover plate 44.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A cable trench cover anti-theft locking device, comprising a cable trench frame (1) and a cover body (2), characterized in that, An anti-theft locking structure (3) is provided between the cable trench frame (1) and the cover plate (2). The anti-theft locking structure (3) includes two rectangular rods (31). The two rectangular rods (31) are fixedly connected to the two sides of the cable trench frame (1) respectively. The other two opposite sides of the cable trench frame (1) are fixedly connected to mounting plates (32). The mounting plates (32) are arranged between the two rectangular rods (31). The top of the cover plate (2) is provided with an auxiliary protective structure (4), which includes a rectangular slot (41). The rectangular slot (41) is located on the top of the cover plate (2), and an operation slot (43) is located at the bottom of the rectangular slot (41).
2. The anti-theft locking device for cable trench covers according to claim 1, characterized in that: A rectangular card plate (33) is fixedly connected to the top of the mounting plate (32), and a first screw hole (34) is provided on one side of the rectangular card plate (33).
3. The anti-theft locking device for cable trench covers according to claim 2, characterized in that: A rectangular ring frame (35) is fixedly connected to the bottom of the cover plate (2), and the rectangular insert (31) is inserted into the inner wall of the rectangular ring frame (35).
4. The anti-theft locking device for cable trench covers according to claim 3, characterized in that: The bottom of the rectangular ring frame (35) is provided with a rectangular slot (36), and the rectangular card plate (33) is inserted into the inner wall of the rectangular slot (36).
5. The anti-theft locking device for cable trench covers according to claim 4, characterized in that: One of the rectangular ring frames (35) has a second screw hole (37) on one side, and the inner walls of the first screw hole (34) and the second screw hole (37) are threadedly connected to a first threaded rod (38).
6. The anti-theft locking device for cable trench covers according to claim 5, characterized in that: The inner wall of the rectangular slot (41) is fitted with a rectangular slot block (42), the top of the rectangular slot block (42) is fixedly connected with a cover plate (44), and the top of the outer surface of the cover plate (44) is fixedly connected with a rectangular protrusion (48).
7. The anti-theft locking device for cable trench covers according to claim 6, characterized in that: The top of the cover plate (2) is provided with a third screw hole (45), and the top of the cover plate (44) is provided with a fourth screw hole (46). The inner walls of the third screw hole (45) and the fourth screw hole (46) are threadedly connected with a second threaded rod (47).