Trench cover plate

By introducing a rectangular frame and support structure into the trench cover, combined with reinforcing ribs and shock-absorbing protective pads, the problem of insufficient support in the middle of the cover is solved, the load-bearing capacity and deformation resistance of the cover are improved, the structural stability is enhanced, and noise is reduced.

CN224133885UActive Publication Date: 2026-04-17XINXIANG LONGJIN PRECISE ALUMINUM TUBE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXIANG LONGJIN PRECISE ALUMINUM TUBE TECH CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing trench covers have insufficient support in the middle, resulting in poor support effect, easy deformation or damage, and failure to meet the usage requirements.

Method used

The cover plate adopts a rectangular frame structure, which combines a support frame and a support bracket to support the sides and middle of the cover plate body. The support bracket is composed of crisscrossing horizontal and vertical plates, and reinforcing ribs are set on the frame and support bracket to enhance structural stability. The bottom of the cover plate body is equipped with a shock-absorbing protective pad to absorb impact force.

Benefits of technology

It significantly improves the load-bearing capacity and deformation resistance of the cover plate, enhances the overall strength and stability of the structure, extends its service life, and reduces vibration and noise.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224133885U_ABST
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Abstract

The utility model provides a trench cover plate which comprises a rectangular frame body fixed to the top of a trench, a cover plate body is movably arranged in the frame body, the top of the cover plate body is flush with the top of the frame body, and a plurality of drainage holes are formed in the cover plate body. A supporting frame used for supporting the side end of the cover plate body is arranged on the inner side wall of the frame body, a supporting frame used for supporting the middle of the cover plate body is further arranged on the inner side wall of the supporting frame, and the top of the supporting frame is flush with the top of the supporting frame. According to the trench cover plate, the basic requirement for shielding and protecting the trench cover plate can be met, and the side ends and the middle part of the cover plate body can be effectively supported, so that the firmness of the trench cover plate is enhanced, and the service life of the trench cover plate is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of trench drainage technology, and specifically relates to a trench cover. Background Technology

[0002] Trench covers are typically made of steel grating and come in a variety of models to suit different span loads and requirements. They are widely used in various places such as municipal roads, garden facilities, residential communities, schools, and stadiums.

[0003] While existing trench covers can meet the basic requirement of shielding and protecting trenches, the cover body and the cover frame are often only connected by a side support structure. The cover frame cannot effectively support the middle of the cover body, resulting in insufficient support and easy deformation or even damage to the middle of the cover body. Therefore, it cannot fully meet people's needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a trench cover that not only meets the basic requirement of shielding and protecting the trench, but also effectively supports the sides and middle of the cover body, thereby enhancing the stability of the device and extending its service life.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a trench cover, including a frame body fixed to the top of the trench, the frame body is rectangular, a cover body is movably arranged in the frame body, the top of the cover body is flush with the top of the frame body, a plurality of drainage holes are opened on the cover body, a support frame for supporting the side end of the cover body is provided on the inner side wall of the frame body, and a support frame for supporting the middle part of the cover body is also provided on the inner side wall of the support frame, the top of the support frame is flush with the top of the support frame.

[0006] As a further improvement of this utility model, a connecting slot is also provided on the inner side wall of the support frame, and a connecting plate that engages with the connecting slot is provided on the side end of the support frame. The tops of both the connecting slot and the connecting plate are flush with the top of the support frame. The connection slot on the inner side wall of the support frame cooperates with the connecting plate on the side end of the support frame, making the support frame installation more stable and reliable, while also facilitating disassembly and maintenance, thus improving the product's service life and maintainability.

[0007] As a further improvement of this utility model, the support frame includes multiple crisscrossing horizontal and vertical plates.

[0008] As a further improvement of this utility model, water through holes corresponding to the drainage holes are also provided on the horizontal and vertical plates. The water through holes on the horizontal and vertical plates of the support frame, corresponding to the drainage holes of the cover body, ensure that water can flow smoothly through the space between the cover body and the support frame, preventing water accumulation at the trench cover.

[0009] As a further improvement of this utility model, a first reinforcing rib is provided between the bottom of the frame body and the bottom of the supporting frame.

[0010] As a further improvement of this utility model, the bottom of the support frame is also provided with a second reinforcing rib that is crisscrossed.

[0011] As a further improvement of this utility model, a shock-absorbing protective pad is also provided at the bottom of the cover plate body, and the shock-absorbing protective pad has a through hole that communicates with the water inlet. The shock-absorbing protective pad can effectively absorb external impact force, reduce vibration and noise, and protect the cover plate body from damage, thus extending its service life.

[0012] As a further improvement of this utility model, a first anti-slip texture is provided on the top outer wall of the frame body and the cover body, and a second anti-slip texture is provided on the top outer wall of the cover body. The anti-slip texture can enhance the anti-slip performance of the top of the frame body and the cover body, preventing vehicles or pedestrians from slipping on the trench cover.

[0013] As a further improvement of this utility model, the cover plate body is snapped into the frame body, and the side ends of the cover plate body and the frame body are hinged. The cover plate body is also provided with a receiving groove. A handle is vertically inserted into the cover plate body corresponding to the receiving groove. A stop is provided at the bottom of the handle, and the top of the handle is not higher than the top of the cover plate body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Firstly, the support frame can support the sides of the cover plate body; the support bracket can support the middle of the cover plate body, effectively solving the problem of insufficient support in the middle of the existing trench cover plate, and significantly improving the overall load-bearing capacity and deformation resistance of the cover plate.

[0016] Secondly, the first reinforcing rib between the bottom of the frame body and the bottom of the supporting frame, and the intersecting second reinforcing ribs at the bottom of the supporting frame, further enhance the strength and stability of the overall structure, enabling the trench cover to be used for a long time under high load conditions. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the frame body, support frame, and connecting slot of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the frame body, supporting frame, and a reinforcing rib of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the support frame, connecting plate, water passage hole, and second reinforcing rib of this utility model;

[0022] Figure 5 This is a schematic diagram of the cover plate body, shock-absorbing protective pad, and through hole of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the receiving groove and handle of this utility model;

[0024] Figure 7 This is a schematic diagram of the handle and stop of this utility model.

[0025] In the diagram: 101, frame body; 102, cover plate body; 103, drainage hole; 104, support frame; 105, support frame; 201, connecting slot; 202, connecting plate; 203, water through hole; 301, first reinforcing rib; 302, second reinforcing rib; 303, shock-absorbing protective pad; 304, through hole; 401, receiving groove; 402, handle; 403, stop block. Detailed Implementation

[0026] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0027] like Figure 1 , 2As shown in Figure 4, a trench cover includes a rectangular frame body 101 fixed to the top of the trench. A cover body 102 is snapped into the frame body 101, and the top of the cover body 102 is flush with the top of the frame body 101. Multiple drainage holes 103 are provided on the cover body 102 for discharging water into the trench. A support frame 104 is provided on the inner wall of the frame body 101 to support the side ends of the cover body 102. A support frame 105 is also provided on the inner wall of the support frame 104 to support the middle of the cover body 102. The top of the support frame 105 is flush with the top of the support frame 104. The frame body 101, cover body 102, and support frame 105 are made of high-strength steel grating material, possessing good corrosion resistance and load-bearing capacity.

[0028] Workers can fix the rectangular frame body 101 to the top of the trench by pouring cement to ensure its accurate and stable position. Then, the cover plate body 102 is snapped into the frame body 101, so that the top of the cover plate body 102 is flush with the top of the frame body 101. In this way, the side end of the cover plate body 102 can be supported and fixed by the support frame 104, and the middle part of the cover plate body 102 can be supported by the support frame 105. This effectively solves the problem of insufficient support in the middle of the existing trench cover and significantly improves the overall load-bearing capacity and deformation resistance of the cover plate.

[0029] According to another embodiment of the present invention, such as Figure 2 , 4 As shown, a connecting slot 201 is also provided on the inner side wall of the support frame 104, and a connecting plate 202 is provided on the side end of the support frame 105 to engage with the connecting slot 201. The tops of both the connecting slot 201 and the connecting plate 202 are flush with the top of the support frame 104. By simply engaging the connecting plate 202 with the connecting slot 201, the support frame 105 and the support frame 104 can be connected together, which facilitates disassembly and maintenance, and improves the product's service life and maintainability.

[0030] According to another embodiment of the present invention, such as Figure 4 As shown, the support frame 105 includes multiple crisscrossing horizontal and vertical plates, which can effectively support the middle part of the cover body 102. Water through holes 203 corresponding to the drainage holes 103 are also provided on the horizontal and vertical plates. The water through holes 203 on the horizontal and vertical plates of the support frame 105, corresponding to the drainage holes 103 of the cover body 102, ensure that water can flow smoothly through the space between the cover body 102 and the support frame 105, preventing water accumulation at the trench cover.

[0031] According to another embodiment of the present invention, such as Figure 3As shown, a first reinforcing rib 301 is also provided between the bottom of the frame body 101 and the bottom of the support frame 104. The first reinforcing rib 301 can enhance the connection between the bottom of the frame body 101 and the bottom of the support frame 104, thereby enhancing the support performance of the side of the cover plate body 102.

[0032] According to another embodiment of the present invention, such as Figure 4 As shown, the bottom of the support frame 105 is also provided with crisscrossing second reinforcing ribs 302. The second reinforcing ribs 302 can enhance the stability of the support frame 105, thereby enhancing the support performance for the middle part of the cover plate body 102.

[0033] According to another embodiment of the present invention, such as Figure 5 As shown, a shock-absorbing protective pad 303 is also provided at the bottom of the cover body 102. The shock-absorbing protective pad 303 has a through hole 304 that communicates with the water inlet 203. The shock-absorbing protective pad 303 is made of elastic rubber material. The shock-absorbing protective pad 303 can effectively absorb external impact force, reduce vibration and noise, and protect the cover body 102 from damage, thus extending its service life.

[0034] According to another embodiment of the present invention, a first anti-slip texture is provided on the top outer wall of the frame body 101, and a second anti-slip texture is provided on the top outer wall of the cover body 102. The first anti-slip texture can enhance the anti-slip performance of the top of the frame body 101, and the second anti-slip texture can enhance the anti-slip performance of the top of the cover body 102, preventing vehicles or pedestrians from slipping on the trench cover.

[0035] According to another embodiment of the present invention, such as Figure 6 , 7 As shown, the cover plate body 102 is snapped into the frame body 101, and the cover plate body 102 is hinged to the side end of the frame body 101. The cover plate body 102 also has a receiving groove 401. A handle 402 is vertically inserted into the cover plate body 102 corresponding to the receiving groove 401. A connecting hole is provided on the cover plate body, passing through the receiving groove and slidably connected to the handle. A stop 403 is provided at the bottom of the handle 402, and the top of the handle 402 is not higher than the top of the cover plate body 102. The stop 403 supports the bottom of the cover plate body 102, allowing workers to easily move the cover plate body 102 using the handle 402. After the cover plate body is installed, the handle 402 can be retracted into the receiving groove 401, preventing the handle 402 from protruding above the cover plate body and obstructing passage.

[0036] The above are preferred embodiments of this 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 this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A trench cover, comprising a frame body (101) fixed to the top of the trench, the frame body (101) being rectangular, characterized in that: A cover plate body (102) is movably disposed in the frame body (101). The top of the cover plate body (102) is flush with the top of the frame body (101). A support frame (104) for supporting the side end of the cover plate body (102) is provided on the inner side wall of the frame body (101). A support frame (105) for supporting the middle part of the cover plate body (102) is also provided on the inner side wall of the support frame (104). The top of the support frame (105) is flush with the top of the support frame (104).

2. The pit cover according to claim 1, wherein: The inner wall of the support frame (104) is also provided with a connecting slot (201), and the side end of the support frame (105) is provided with a connecting plate (202) that engages with the connecting slot (201). The tops of the connecting slot (201) and the connecting plate (202) are flush with the top of the support frame (104).

3. The pit cover according to claim 2, wherein: The support frame (105) includes multiple crisscrossing horizontal and vertical plates.

4. The pit cover according to claim 3, wherein: The cover plate body (102) is provided with a plurality of drainage holes (103), and the horizontal plate and the vertical plate are also provided with water through holes (203) corresponding to the drainage holes (103).

5. The pit cover according to claim 4, wherein: A first reinforcing rib (301) is also provided between the bottom of the frame body (101) and the bottom of the supporting frame (104).

6. The pit cover of claim 5, wherein: The bottom of the support frame (105) is also provided with a second reinforcing rib (302) that is crisscrossed.

7. The pit cover according to claim 6, wherein: The bottom of the cover plate body (102) is also provided with a shock-absorbing protective pad (303), and the shock-absorbing protective pad (303) has a through hole (304) that communicates with the water inlet (203).

8. The trench cover as described in claim 7, characterized in that: The frame body (101) and the top outer side wall are provided with a first anti-slip texture, and the cover plate body (102) is provided with a second anti-slip texture.

9. The pit cover of claim 1, wherein: The cover plate body (102) is snapped into the frame body (101), and the cover plate body (102) is hinged to the side end of the frame body (101). The cover plate body (102) is also provided with a receiving groove (401). A handle (402) is vertically inserted into the cover plate body (102) corresponding to the position of the receiving groove (401). A stop block (403) is provided at the bottom of the handle (402), and the top of the handle (402) is not higher than the top of the cover plate body (102).