Concrete trench cover

Abstract

The utility model provides a kind of cover plate for concrete ditch belongs to building engineering technical field, the cover plate for concrete ditch includes cover plate body, hoist hole is set on cover plate body by from top to bottom and is through the upper and lower bottom surface of cover plate body, it is characterized in that, it further includes reinforcing mesh, edge, recess and three-dimensional rib, two reinforcing mesh are stacked and embedded in the inside of cover plate body for reducing the deformation of cover plate body, cover plate body is cuboid structure, the four corners of cover plate body are all welded with letter L type edge, and the edge is used to prevent corner collapse;The upper surface of cover plate body is evenly provided with multiple recesses and three-dimensional ribs, and the recess and three-dimensional rib are staggered arrangement, the recess is T type structure, and the depth is 20-40mm;The utility model can solve the problem that the deformation of cover plate is easily caused by the rolling of vehicle on cover plate and pavement for a long time.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a cover plate for concrete ditches. Background Technology

[0002] Concrete ditch covers are plate-like components that cover concrete ditches. Their main function is to ensure the safety of pedestrians and vehicles, preventing falls; they also effectively block garbage and debris from entering the ditch, maintain water flow, and beautify the environment. While existing concrete ditch covers are effective initially, after prolonged use, especially under the constant and repeated pressure of vehicles, some inherent problems gradually emerge. These problems not only affect their own function but also pose potential threats to road structure and public safety. Traditional concrete covers, although possessing a certain compressive strength, develop micro-cracks under the continuous dynamic load of vehicles, especially heavy vehicles, eventually leading to fatigue damage to the internal structure of the cover. Furthermore, the long-term pressure of vehicles on the cover and road surface easily causes deformation of the cover, i.e., "warping" or "denting." This deformation not only affects driving comfort but also leads to uneven stress distribution between the vehicle tire and the cover, accelerating edge damage or central cracking of the cover. Utility Model Content

[0003] In view of this, the present invention provides a cover plate for concrete ditches, which can solve the problem that the cover plate is easily deformed by the long-term rolling of vehicles on the cover plate and the road surface.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a cover plate for concrete ditches, including a cover plate body with lifting holes running from top to bottom through the upper and lower bottom surfaces of the cover plate body. It also includes a steel mesh, edging, grooves, and three-dimensional reinforcing ribs. Two steel meshes are stacked vertically and embedded inside the cover plate body to reduce deformation. The cover plate body has a cuboid structure, and L-shaped edging is welded to each of the four corners to prevent corner chipping. Multiple grooves and three-dimensional reinforcing ribs are evenly distributed on the upper surface of the cover plate body, with the grooves and ribs arranged alternately.

[0006] The technical advantages of this utility model for a concrete ditch cover are as follows: The stacking of two steel meshes effectively enhances the overall strength and rigidity of the cover, significantly improving its load-bearing capacity and reducing deformation under heavy pressure or impact, thereby extending the cover's service life. This double-layer arrangement is particularly important for covers bearing large loads or with large spans. The L-shaped edging, made of metal and welded to the four corners of the cover, effectively protects the most vulnerable edges and corners, preventing chipping due to external impact or friction during use, greatly improving the cover's durability and aesthetics. The grooves and three-dimensional reinforcing ribs work together to significantly increase the friction coefficient of the cover's surface, effectively preventing slippage for pedestrians, vehicles, and equipment, especially in rainy, snowy, or wet environments, significantly improving safety. The grooves guide water flow, promoting rapid drainage of surface water and preventing water accumulation that causes slippage and erosion of the cover surface.

[0007] Based on the above technical solution, the concrete ditch cover of this utility model can be further improved as follows:

[0008] The groove has a T-shaped structure and a depth of 20-40mm.

[0009] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: compared with V-shaped or U-shaped grooves, T-shaped grooves have a larger bottom width and the groove opening protrudes downward by 20-40 mm, which is equivalent to adding a small beam to the bottom of the plate, thereby increasing the moment of inertia.

[0010] Furthermore, the mesh spacing of the steel reinforcement mesh is 80mm.

[0011] The beneficial effects of adopting the above-mentioned improved scheme are as follows: it can significantly reduce crack propagation under impact load; the double-layer steel mesh spacing is 80mm, which also takes into account the crack resistance in the negative bending moment zone. The smaller mesh spacing (compared to a larger spacing) makes the steel reinforcement distribution inside the concrete more dense and uniform, which can more effectively disperse and transfer stress, prevent local stress concentration, and thus improve the overall crack resistance and load-bearing capacity of the cover plate.

[0012] Furthermore, reinforcing ribs are fixed on the bottom surface of the groove, and the bottom surface of the groove has a gradually rising structure from left to right with an inclination angle of 5-10°.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: The reinforcing ribs effectively enhance the local strength and rigidity of the groove bottom, preventing cracks or damage under long-term pressure or impact. This helps increase the durability of the cover plate body. The inclined angle creates a slight slope, allowing water inside the groove to flow naturally and more quickly in one direction and drain away, preventing water from accumulating in the groove and further enhancing drainage efficiency and anti-slip effect.

[0014] Furthermore, the three-dimensional ribs are semi-circular raised structures with a height of 10-25mm, and their surface roughness is greater than that of the cover plate body.

[0015] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the semi-circular structure has no sharp edges, resulting in more even wear under long-term vehicle pressure or friction, and is less likely to cause excessively rapid wear in certain areas, thus affecting the overall anti-slip effect. The moderate height will not obstruct the normal passage of pedestrians or vehicles, avoiding discomfort or safety hazards that may be caused by excessive protrusion. Increasing the local roughness can significantly increase the friction between the rib and the contact object, further enhancing the anti-slip effect.

[0016] Furthermore, a reinforcing bushing is installed on the inner wall of the hoisting hole. The reinforcing bushing is made of wear-resistant steel to reduce wear on the hole wall during hoisting.

[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the integrity of the borehole wall is directly related to the safety of the hoisting operation, and the addition of the bushing enhances this safety.

[0018] Furthermore, the horizontal distance between the center line of the three-dimensional rib and the center line of the adjacent groove is 1.2-1.8 times the width of the groove, and the bottom width of the three-dimensional rib is 0.8-1.2 times its height.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are: it ensures the uniform distribution of the anti-slip texture on the cover surface, neither being too sparse, resulting in poor anti-slip performance, nor too dense, leading to drainage difficulties or increased production costs. The ribs, when subjected to vertical pressure, can evenly distribute stress, avoiding localized stress concentration.

[0020] Furthermore, the lifting hole is located at the intersection of the diagonals of the cover plate body, and the diameter of the lifting hole is 1 / 15 to 1 / 25 of the shortest side length of the cover plate body.

[0021] Furthermore, the cross-sectional shape of the three-dimensional reinforcing bar is an asymmetrical semi-circle, with one side having a greater slope than the other side, in order to optimize drainage and anti-slip effects.

[0022] The beneficial effects of adopting the above-mentioned improvement scheme are: the side with a larger slope can more effectively block the water flow, while the side with a smaller slope can facilitate the water flow to slide smoothly over the reinforcing ribs, guide the direction of water flow, and further improve drainage efficiency.

[0023] Furthermore, the distance between the outer reinforcing bars of the steel mesh and the edge of the cover plate body is 20-30mm to ensure the thickness of the concrete protective layer and prevent the reinforcing bars from corroding.

[0024] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: When reinforcing steel corrodes, it expands in volume, cracking the concrete and causing the cover plate structure to fail. A thickness of 20-30mm can effectively block these harmful substances, significantly extending the service life of both the reinforcing steel and the cover plate.

[0025] Compared with existing technologies, the beneficial effects of the concrete ditch cover provided by this utility model are as follows: Double-layer steel mesh is embedded inside the cover, and the tensile strength and overall rigidity of the cover are significantly enhanced through precise control of the mesh spacing and protective layer. This completely solves the deformation problems such as sinking, cracking, and warping that easily occur under long-term compaction, ensuring a long-lasting smooth road surface. The L-shaped metal edging effectively resists corner chipping, and the wear-resistant steel bushing protects the lifting holes from wear, ensuring the cover remains intact even in harsh environments and significantly extending its service life. The combination of T-shaped grooves and three-dimensional ribs not only improves anti-slip performance but also, through a unique water flow guiding design, allows for rapid drainage in rainy and snowy weather, preventing water accumulation and slipping. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A cross-sectional view of a concrete ditch cover.

[0028] Figure 2 A top view of a concrete ditch cover;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 10. Cover plate body; 20. Lifting hole; 30. Steel mesh; 40. Edge banding; 50. Groove; 60. Three-dimensional reinforcing rib; 70. Reinforcing rib. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figure 1-2The illustration shows an embodiment of a concrete ditch cover provided by this utility model. In this embodiment, it includes a cover body 10, on which a lifting hole 20 is provided, running from top to bottom through the upper and lower bottom surfaces of the cover body 10. It also includes a steel mesh 30, an edging 40, grooves 50, and three-dimensional reinforcing ribs 60. Two steel meshes 30 are stacked one on top of the other and embedded inside the cover body 10 to reduce the deformation of the cover body 10. The cover body 10 has a cuboid structure. L-shaped edgings 40 are welded to the four corners of the cover body 10 to prevent corner chipping. Multiple grooves 50 and three-dimensional reinforcing ribs 60 are evenly provided on the upper surface of the cover body 10, with the grooves 50 and three-dimensional reinforcing ribs 60 arranged alternately.

[0033] In the above technical solution, the groove 50 has a T-shaped structure and a depth of 20-40mm.

[0034] Furthermore, in the above technical solution, the mesh spacing of the steel mesh 30 is 80mm.

[0035] Furthermore, in the above technical solution, a reinforcing rib 70 is fixed on the lower bottom surface of the groove 50, and the lower bottom surface of the groove 50 has a gradually rising structure from left to right with an inclination angle of 5-10°.

[0036] Furthermore, in the above technical solution, the three-dimensional pressure rib 60 is a semi-circular protrusion structure with a height of 10-25mm, and its surface roughness is greater than that of the cover plate body surface.

[0037] Furthermore, in the above technical solution, a reinforcing bushing is provided on the inner wall of the lifting hole 20. The reinforcing bushing is made of wear-resistant steel to reduce wear on the hole wall during the lifting process.

[0038] Furthermore, in the above technical solution, the horizontal distance between the center line of the three-dimensional rib 60 and the center line of the adjacent groove 50 is 1.2-1.8 times the width of the groove 50, and the bottom width of the three-dimensional rib 60 is 0.8-1.2 times its height.

[0039] Furthermore, in the above technical solution, the lifting hole 20 is located at the intersection of the diagonals of the cover plate body, and the diameter of the lifting hole 20 is 1 / 15 to 1 / 25 of the shortest side length of the cover plate body.

[0040] Furthermore, in the above technical solution, the cross-sectional shape of the three-dimensional reinforcing rib 60 is an asymmetrical semi-circle, with the slope on one side being greater than that on the other side, in order to optimize drainage and anti-slip effects.

[0041] Furthermore, in the above technical solution, the distance between the outer reinforcing bars of the reinforcing mesh 30 and the edge of the cover plate body 10 is 20-30mm to ensure the thickness of the concrete protective layer and prevent the reinforcing bars from corroding.

[0042] Two stacked steel meshes are embedded within the cover plate body, forming a robust "skeleton." When vehicle tires apply pressure, this double-layer design effectively disperses and absorbs impact force, significantly improving the cover plate's bending and shear resistance, thus preventing breakage or severe deformation under heavy pressure. When vehicles drive over it, especially when turning or experiencing uneven pressure on the edges, the cover plate's edges and corners are vulnerable points prone to breakage. The L-shaped edging provides robust metal protection, effectively absorbing and resisting impact and friction, fundamentally preventing corner chipping, ensuring the cover plate's integrity and lifespan, and avoiding frequent replacements due to edge damage. Grooves provide water-trapping space and lateral resistance, while three-dimensional ribs provide raised friction points. This composite texture design significantly increases the coefficient of friction on the contact surface under wet and slippery conditions, whether pedestrians are wearing shoes or vehicle tires are driving over it, effectively preventing slippage and greatly improving traffic safety. During installation, the cover plate is slightly raised above the ground to facilitate water flow out from the grooves.

[0043] Specifically, the principle of this utility model is as follows: the design incorporates a "two steel meshes stacked vertically and embedded within the cover plate body." This utilizes the composite material properties of reinforced concrete; the steel bars provide excellent tensile strength, compensating for the poor tensile properties of concrete, thereby effectively resisting bending moments and significantly reducing the deformation of the cover plate under long-term stress or temperature changes, ensuring its flatness and service life. The T-shaped grooves and semi-circular raised three-dimensional reinforcing ribs significantly increase the friction between vehicles or pedestrians and the cover plate by increasing the surface roughness and irregularity, thus effectively improving anti-slip performance. By embedding high-strength steel into the concrete substrate to enhance load-bearing capacity, utilizing metal edging and wear-resistant materials to improve damage resistance, optimizing anti-slip and drainage functions through surface texture design, and improving the hoisting structure to enhance construction efficiency and safety, the overall performance and service life of the concrete ditch cover plate are comprehensively improved.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A cover plate for concrete ditches, comprising a cover plate body (10), wherein the cover plate body (10) is provided with lifting holes (20) extending from top to bottom through the upper and lower bottom surfaces of the cover plate body (10), characterized in that, It also includes a steel mesh (30), an edging (40), a groove (50) and a three-dimensional reinforcing bar (60). Two steel meshes (30) are stacked one on top of the other and embedded inside the cover plate body (10) to reduce the deformation of the cover plate body (10). The cover plate body (10) is a cuboid structure. The four corners of the cover plate body (10) are welded with L-shaped edging (40) to prevent corner chipping. Multiple grooves (50) and three-dimensional reinforcing bars (60) are evenly arranged on the upper surface of the cover plate body (10). The grooves (50) and three-dimensional reinforcing bars (60) are arranged in an alternating pattern.

2. The concrete ditch cover plate according to claim 1, characterized in that, The groove (50) has a T-shaped structure and a depth of 20-40mm.

3. A cover plate for concrete ditches according to claim 2, characterized in that, The mesh spacing of the steel mesh (30) is 80mm.

4. A concrete ditch cover according to claim 3, characterized in that, A reinforcing rib (70) is fixed on the bottom surface of the groove (50). The bottom surface of the groove (50) is a gradually rising structure from left to right, with an inclination angle of 5-10°.

5. A concrete ditch cover according to claim 4, characterized in that, The three-dimensional rib (60) is a semi-circular raised structure with a height of 10-25mm, and its surface roughness is greater than that of the cover plate body.

6. A cover plate for concrete ditches according to claim 5, characterized in that, The inner wall of the hoisting hole (20) is provided with a reinforcing bushing made of wear-resistant steel to reduce wear on the hole wall during hoisting.

7. A concrete ditch cover according to claim 6, characterized in that, The horizontal distance between the center line of the three-dimensional rib (60) and the center line of the adjacent groove (50) is 1.2-1.8 times the width of the groove (50), and the bottom width of the three-dimensional rib (60) is 0.8-1.2 times its height.

8. A cover plate for concrete ditches according to claim 7, characterized in that, The lifting hole (20) is located at the intersection of the diagonals of the cover plate body, and the diameter of the lifting hole (20) is 1 / 15 to 1 / 25 of the shortest side length of the cover plate body.

9. A cover plate for concrete ditches according to claim 8, characterized in that, The cross-sectional shape of the three-dimensional reinforcing bar (60) is an asymmetrical semi-circle, with the slope on one side being greater than that on the other side, in order to optimize drainage and anti-slip effects.

10. A concrete ditch cover according to claim 9, characterized in that, The distance between the outer reinforcing bars of the reinforcing mesh (30) and the edge of the cover plate body (10) is 20-30mm to ensure the thickness of the concrete protective layer and prevent the reinforcing bars from rusting.

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