Combined cable trench cover plate
By combining design and locking mechanism, the problem of excessive weight of large cable trench covers is solved, enabling rapid installation and locking of separate covers and simplifying the inspection and maintenance of cable trenches.
Patent Information
- Application Number
- CN202520416182.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The covers of large cable trenches are made of a single piece, resulting in excessive weight and making them difficult to open during actual inspection and maintenance.
The modular design divides the cover frame into multiple compartments, and the cover plates can be quickly installed and removed through support components, slide rails and connecting columns. The locking mechanism uses the forward and reverse rotation of gears and racks to lock the cover plates.
It effectively reduces the weight of cable trench covers, enables quick installation and removal of covers, and simplifies inspection and maintenance operations.
Smart Images

Figure CN223893417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a combined cable trench cover, belonging to the technical field of cable trench cover. Background Technology
[0002] Currently, cable trenches in the power industry are covered with cable trench covers, which are typically made of materials such as concrete, steel, and plastic. Cable trench covers prevent physical damage to cables from soil, rainwater, and debris, protecting them from external environmental damage. They also prevent pedestrians or vehicles from accidentally entering the cable trench, preventing accidents and ensuring public safety. Furthermore, cable trench covers facilitate cable inspection, maintenance, and replacement, keeping the cable trench clean and preventing the accumulation of garbage and debris.
[0003] However, current cable trenches are all molded from a single piece. For cable trenches with large widths, the cable trench cover area is also large, resulting in excessive weight. Since cable trench covers need to be opened periodically for inspection or maintenance of the internal cables, excessive weight makes it difficult to open large cable trench covers without specific tools and sufficient personnel, hindering the implementation of cable trench inspection and maintenance work. Utility Model Content
[0004] Based on the above, this utility model provides a modular cable trench cover to solve the problem that the cover of a large cable trench is made of a single piece, which is too heavy and difficult to open during actual inspection and maintenance.
[0005] The technical solution of this utility model is: a combined cable trench cover, comprising:
[0006] A cover plate frame includes a frame, ribs, supports, and guide rails. The ribs are installed inside the frame and divide the frame into multiple compartments. The supports are disposed on the inner bottom side of each compartment, and the guide rails are formed on two opposite inner sides of each compartment.
[0007] The cover plate can be placed on the compartment, and the cover plate is provided with connecting posts corresponding to the guide rail.
[0008] One example also includes:
[0009] A locking mechanism includes a housing, a rotating shaft, a gear, and a rack. The housing is mounted on the bottom end face of the cover plate. The rotating shaft is rotatably mounted on the cover plate, and both ends of the rotating shaft extend out of both end faces of the cover plate. The gear is fixed to one end of the rotating shaft, and the rack is meshed with both sides of the gear.
[0010] The rack is driven to move between extending outwards from both sides of the cover plate and retracting inwards from both sides of the cover plate by the forward and reverse rotation of the gear.
[0011] In one example, a limiting block is provided inside the housing, which prevents the rack from continuing to move when it retracts to a predetermined position, thereby limiting the retracted position of the rack.
[0012] In one example, the upper surface of the cover plate is provided with a groove, the rotating shaft is installed at the location of the groove, the top of the rotating shaft is provided with a torsion handle, and a handle is provided above the torsion handle.
[0013] In one example, the guide rail is in the shape of an elliptical elongated hole and is disposed on both sides of one end of the compartment, and the corresponding connecting posts are a pair and disposed on both sides of one end of the cover plate.
[0014] In one example, the frame is a square frame, and the ribs are cross-shaped.
[0015] The beneficial effects of this utility model are as follows: By dividing the cover frame into multiple compartments and setting corresponding sub-covers, the problem of excessive weight of current cable trench covers, making them difficult to open during actual inspection and maintenance, is effectively solved. Furthermore, in conjunction with support components, slide rails, and connecting columns, the sub-covers can be quickly installed and removed. In addition, through the locking mechanism, once the sub-cover is placed on the compartment, the rotation of the rotating shaft causes the rack to extend from both sides of the sub-cover and abut against the bottom of the cover frame, locking the sub-cover onto the cover frame and ensuring effective fixation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a modular cable trench cover.
[0017] Figure 2 This is a schematic diagram of the cover plate frame;
[0018] Figure 3 This is a schematic diagram of the cover plate from one perspective;
[0019] Figure 4 This is a schematic diagram of the cover plate from another perspective;
[0020] Figure 5 A schematic diagram of the locking mechanism;
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Cover plate frame, 11. Frame, 12. Rib plate, 13. Support component, 14. Guide rail, 15. Divider;
[0023] 2-point cover plate, 21-point connecting post, 22-point groove, 23-point handle;
[0024] 3 Locking mechanism, 31 Housing, 32 Rotating shaft, 33 Gear, 34 Rack, 35 Torque handle, 36 Limit block. Detailed Implementation
[0025] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0026] Please see Figures 1 to 5 This embodiment provides a combined cable trench cover, including a cover frame 1 and sub-covers 2.
[0027] The cover plate frame 1 includes a frame 11, ribs 12, supports 13, and guide rails 14. The frame 11 is square, and the ribs 12 are cross-shaped. The ribs 12 are installed inside the frame 11 and divide the frame 11 into four compartments 15. Multiple supports 13 are installed on the inner bottom of the compartments 15, and guide rails 14 are formed on two opposite inner sides of the compartments 15. In other embodiments, the ribs 12 can divide the frame 11 into two compartments 15, six compartments 15, or other structural forms.
[0028] The cover plate 2 has the same dimensions and specifications as the compartment 15, and can be placed on the compartment 15. The cover plate 2 is provided with a connecting post 21 corresponding to the guide rail 14, and the connecting post 21 can be installed in the guide rail 14.
[0029] For ease of installation, the guide rail 14 is in the shape of an elliptical elongated hole and is set on both sides of one end of the compartment 15. The corresponding connecting posts 21 are a pair and are set on both sides of one end of the cover plate 2.
[0030] When installing the cover plate, first install the cover plate frame 1 on the cable trench, and then install the sub-cover plate 2. Because the guide rail 14 of the sub-cover plate 2 is designed with an elliptical hole, the sub-cover plate 2 can be vertically tilted. First, insert one side connecting post 21 into the guide rail 14 of the sub-cover plate 2, then rotate the sub-cover plate 2 and insert the other side connecting post 21. After both connecting posts 21 are inserted into the guide rail 14, lower the sub-cover plate 2 into place to complete the installation. By dividing the cover plate frame 1 into multiple compartments 15, the large cable trench cover plate can be divided into multiple sub-cover plates 2, effectively solving the problem of the current cable trench cover plates being too heavy and difficult to open during actual inspection and maintenance. Simultaneously, in conjunction with the support component 13, slide rail, and connecting post 21, the sub-cover plate 2 can be quickly installed and disassembled.
[0031] The trench cover also includes a locking mechanism 3, which includes a housing 31, a rotating shaft 32, a gear 33, and a rack 34. The housing 31 is fixedly installed on the bottom end face of the sub-cover plate 2. The rotating shaft 32 is rotatably installed on the sub-cover plate 2, and both ends of the rotating shaft 32 extend out of the end faces of the sub-cover plate 2. A torsion handle 35 and a gear 33 are respectively installed at both ends of the rotating shaft 32. The rack 34 is meshed on both sides of the gear 33. Both the gear 33 and the rack 34 are installed in the housing 31. The forward and reverse rotation of the gear 33 can drive the rack 34 to move between extending out of the sides of the sub-cover plate 2 and retracting into the sides of the sub-cover plate 2. When the rack 34 extends out of the sides of the sub-cover plate 2, it extends to the bottom of the cover plate frame 1, thereby locking the sub-cover plate 2 onto the cover plate frame 1. When the rack 34 retracts between the sides of the sub-cover plate 2, it can disengage from the cover plate frame 1.
[0032] With the locking mechanism 3 in place, when the cover plate 2 is placed on the compartment 15, the rack 34 extends out from both sides of the cover plate 2 and abuts against the bottom of the cover plate frame 1 by twisting the rotating shaft 32, thereby locking the cover plate 2 onto the cover plate frame 1.
[0033] For ease of operation, a limiting block 36 is provided inside the housing 31. The limiting block 36 blocks the rack 34 from continuing to move when it retracts to a predetermined position (when it is about to disengage from the gear 33), thereby limiting the retraction position of the rack 34.
[0034] To improve aesthetics, a groove 22 is provided on the upper surface of the cover plate 2. The rotating shaft 32 is installed at the groove 22. A handle 23 is provided above the torsion handle 35, and the handle 23 is flush with the upper surface of the cover plate 2. When it is necessary to observe the cable trench, each cover plate 2 can be opened individually. When it is necessary to open the entire cable trench cover, the cover plate 2 can be removed and the cover plate frame 1 can be removed to easily open the entire cable trench cover.
[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A composite cable trench cover, characterized in that, include: The cover plate frame (1) includes a frame (11), ribs (12), supports (13) and guide rails (14). The ribs (12) are installed inside the frame (11) and divide the frame (11) into multiple compartments (15). The supports (13) are disposed on the inner bottom of the compartments (15). The guide rails (14) are formed on two opposite inner sides of the compartments (15). The cover plate (2) can be placed on the compartment (15), and the cover plate (2) is provided with a connecting post (21) corresponding to the guide rail (14).
2. The combined cable trench cover according to claim 1, characterized in that, Also includes: The locking mechanism (3) includes a housing (31), a rotating shaft (32), a gear (33), and a rack (34). The housing (31) is mounted on the bottom surface of the cover plate (2). The rotating shaft (32) is rotatably mounted on the cover plate (2), and both ends of the rotating shaft (32) extend out of both ends of the cover plate (2). The gear (33) is fixed to one end of the rotating shaft (32), and the rack (34) is meshed with both sides of the gear (33). The rack (34) is driven to move between the two sides of the cover plate (2) and the two sides of the cover plate (2) through the forward and reverse rotation of the gear (33).
3. The combined cable trench cover according to claim 2, characterized in that, A limiting block (36) is provided inside the housing (31). The limiting block (36) prevents the rack (34) from continuing to move when it retracts to a predetermined position, thereby limiting the retraction position of the rack (34).
4. The combined cable trench cover according to claim 2, characterized in that, The upper end face of the cover plate (2) is provided with a groove (22), the rotating shaft (32) is installed at the position of the groove (22), the top of the rotating shaft (32) is provided with a torsion handle (35), and a handle (23) is provided above the torsion handle (35).
5. The combined cable trench cover according to claim 1, characterized in that, The guide rail (14) is in the shape of an elliptical elongated hole and is located on both sides of one end of the compartment (15). The corresponding connecting posts (21) are a pair and are located on both sides of one end of the cover plate (2).
6. The combined cable trench cover according to claim 1, characterized in that, The frame (11) is a square frame, and the ribs (12) are cross-shaped.