Stone chip concrete cable trench cover plate prefabricated part
By designing precast stone chip concrete cable trench covers, and utilizing the stone chip concrete filling layer and supporting steel reinforcement structure, the problems of easy damage and high cost of high-performance concrete cable trench covers are solved, achieving the effects of improved compressive strength and reduced cost.
Patent Information
- Application Number
- CN202520050557.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing high-performance concrete cable trench covers are susceptible to damage from vehicle traffic and have high production costs.
The structure employs a stone chip concrete filling layer and a supporting steel reinforcement structure. By connecting the supporting steel reinforcement with polymer steel reinforcement, the compressive strength is enhanced, and the protective mechanism absorbs the impact force of vehicle crushing, thereby reducing production costs.
It improves the compressive strength and practicality of cable trench covers, reduces production costs, and prevents the covers from being damaged by crushing, thus enhancing the product's durability and safety.
Smart Images
Figure CN223766862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable trench cover technology, and in particular to a precast stone chip concrete cable trench cover. Background Technology
[0002] Cable trench covers are prefabricated components used to cover cable trenches. They are usually made of concrete, cast iron, and composite materials. They provide physical protection for cables, preventing damage from external forces and avoiding insulation damage and short circuits caused by vehicle running over them, pedestrian trampling, and debris accumulation.
[0003] A search revealed Chinese Patent Publication No. CN215009539U, which discloses a high-performance concrete cable trench cover, relating to the field of cable trench covers. This utility model includes an installation device, a trench cover device, a locking device, a monitoring device, and a lighting device. One surface of the installation frame is connected to one surface of the support frame; the lower surface of the cover is connected to the outer surface of the rotating shaft; the lower surface of the cover is connected to the upper surface of the support frame; a locking rod and a buckle form a lock; one surface of the lamp holder is connected to one surface of the support frame; one surface of the battery is connected to one surface of the support frame; and the lower surface of the solar panel is connected to the upper surface of the cover. A high-performance concrete cable trench cover involves installing a mounting frame on the inner wall of the cable trench, attaching the cover to the upper surface of the support frame, and locking the support frame and cover with a locking rod to form a lock. When monitoring underground gas is required, pressing the buckle deforms the spring, releasing the lock between the buckle and the cover. However, during use, because the cable trench cover is installed outdoors and on the roadside, it is easily damaged by vehicles. Furthermore, this high-performance concrete cable trench cover is made using river sand concrete, resulting in high production costs and increasing the user's production costs, thus failing to meet the user's needs. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a precast stone chip concrete cable trench cover, which aims to improve the problems of existing high-performance concrete cable trench covers being easily damaged by rolling and having high costs.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precast stone chip concrete cable trench cover, comprising a stone chip concrete filling layer and supporting reinforcing bars. Corner guards are provided at the four outer corners of the stone chip concrete filling layer. Protective frames are fixedly connected to the upper and lower sides of multiple corner guards. First connecting reinforcing bars are fixedly connected to the upper and lower ends of one side of multiple corner guards. One end of each of the first connecting reinforcing bars is fixedly connected to a corresponding supporting reinforcing bar. Multiple second connecting reinforcing bars are fixedly connected to adjacent sides of two supporting reinforcing bars. Multiple polymer reinforcing bars are fixedly connected at equal intervals to the front and rear sides of two supporting reinforcing bars. Multiple protective plates are equidistantly arranged around the outer perimeter of the stone chip concrete filling layer. Protective mechanisms are provided at the bottom left and right ends of the lower protective frame. These protective mechanisms facilitate protection when the device is subjected to rolling pressure.
[0006] The above technical solution uses stone chips instead of river sand and improves the compressive strength of the cable trench cover by using supporting steel bars and polymer steel bars, thereby reducing the user's production cost and meeting the user's needs.
[0007] As a further description of the above technical solution:
[0008] The protective mechanism includes support plates, two of which are respectively disposed at the bottom left and right ends of the lower protective frame. Fixing blocks are fixedly connected to the front and rear sides of the top of each support plate. Fixing rods are fixedly connected to adjacent sides of each of the two fixing blocks. Sliding blocks are slidably connected to the front and rear sides of the outer walls of each fixing rod. Springs are fixedly connected to the opposite sides of each of the two sliding blocks. Each spring is fixedly connected to a corresponding fixing block. Connecting rods are rotatably connected to the inner sides of each of the two springs. Rotating blocks are rotatably connected to the top ends of each of the two connecting rods. The tops of each of the two rotating blocks are fixedly connected to the lower protective frame.
[0009] By employing the above technical solution, the spring absorbs the impact force of the vehicle rolling over the cable trench cover, making the device less prone to collision with the cable trench due to sudden excessive force, thus improving the device's practicality.
[0010] As a further description of the above technical solution:
[0011] The top left and right sides of the stone chip concrete filling layer are fixedly connected to support blocks, and the top of each of the two support blocks is rotatably connected to a lifting ring.
[0012] With the above technical solution, when it is necessary to install or move the cable trench cover, the lifting ring on the top of the support block can be used to facilitate the installation and movement.
[0013] As a further description of the above technical solution:
[0014] The support plate has sliding grooves on both the front and rear sides of its top, and the interior of each of the two sliding grooves is slidably connected to the corresponding slider.
[0015] Through the above technical solution, the slide can limit the movement of the slider, so that the slider will not move excessively.
[0016] As a further description of the above technical solution:
[0017] The bottom is fixedly connected with an anti-slip pad, and one side of each of the multiple corner protectors is fixedly connected with a rubber pad.
[0018] Through the above technical solutions, the anti-slip mat can prevent the cable trench cover from moving during use, and the rubber mat can prevent the cable trench covers from colliding with each other.
[0019] As a further description of the above technical solution:
[0020] Ventilation holes are provided on the top left and right sides of the stone chip concrete filling layer near the edge, and filter screens are fixedly connected to the top inner side of each of the two ventilation holes.
[0021] With the above technical solution, ventilation holes are opened on the top left and right sides of the stone chip concrete filling layer near the edge, and filter screens are fixedly connected to the top of the inner side of the two ventilation holes.
[0022] As a further description of the above technical solution:
[0023] The inner dimensions of the ventilation hole match the size of the filter screen, and the dimensions of the stone chip concrete filling layer match the size of the protective frame.
[0024] Through the above technical solution, the inner size of the ventilation hole matches the size of the filter screen, so that debris will not get stuck between the filter screen and the ventilation hole. The size of the stone chip concrete filling layer matches the size of the protective frame, so that the protective frame can fully protect the stone chip concrete filling layer.
[0025] As a further description of the above technical solution:
[0026] An installation plate is fixedly connected to the top center of the stone chip concrete filling layer, and a label is fixedly connected to the top of the installation plate.
[0027] The above technical solution allows for the installation of identification marks on the top of the mounting plate to number the cable trench cover, facilitating its management.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, the supporting steel bars in the cable trench cover are connected to the corner guards through the first connecting steel bars, which can improve the load-bearing capacity of the middle part of the device. Polymer steel bars are set on the outside of the supporting steel bars, so that the stone chip concrete can be tightly connected with the polymer steel bars. The concrete performance will not be reduced due to the use of stone chips, thus reducing the user's production cost and meeting the user's needs.
[0030] 2. In this utility model, when the cable trench cover is crushed, the protective frame drives the rotating block to move downward together. When the rotating block moves downward, it can push the slider to move through the connecting rod. At this time, the slider will squeeze the spring. The spring will contract when squeezed and absorb the impact force of the downward movement, so that the device is not easy to collide with the cable trench due to sudden excessive force, thus improving the practicality of the device. Attached Figure Description
[0031] Figure 1 This is a perspective view of a prefabricated stone chip concrete cable trench cover according to the present invention.
[0032] Figure 2 This is a partial structural exploded view of a precast stone chip concrete cable trench cover according to the present invention.
[0033] Figure 3 This is a structural schematic diagram of a prefabricated stone chip concrete cable trench cover proposed in this utility model;
[0034] Figure 4 This is a partial structural schematic diagram of a prefabricated stone chip concrete cable trench cover according to the present invention.
[0035] Figure 5 This is a partial structural cross-sectional view of a prefabricated stone chip concrete cable trench cover proposed in this utility model.
[0036] Legend:
[0037] 1. Stone chip concrete filling layer; 2. Protective mechanism; 201. Support plate; 202. Fixing block; 203. Fixing rod; 204. Sliding block; 205. Spring; 206. Connecting rod; 207. Rotating block; 3. Corner guard; 4. Protective frame; 5. First connecting steel bar; 6. Supporting steel bar; 7. Second connecting steel bar; 8. Polymer steel bar; 9. Guard plate; 10. Supporting block; 11. Lifting ring; 12. Slide groove; 13. Anti-slip mat; 14. Rubber mat; 15. Ventilation hole; 16. Filter screen; 17. Mounting plate; 18. Marking. Detailed Implementation
[0038] 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.
[0039] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a precast concrete cable trench cover, comprising a concrete filling layer 1 and supporting steel bars 6. Corner guards 3 are provided at the four corners of the outer side of the concrete filling layer 1. Protective frames 4 are fixedly connected to the upper and lower sides of the multiple corner guards 3. First connecting steel bars 5 are fixedly connected to the upper and lower ends of one side of the multiple corner guards 3. One end of the multiple first connecting steel bars 5 is fixedly connected to the corresponding supporting steel bars 6. Multiple second connecting steel bars 7 are fixedly connected to the adjacent side of the two supporting steel bars 6. Multiple polymer steel bars 8 are fixedly connected at equal intervals to the front and rear sides of the two supporting steel bars 6. Multiple protective plates 9 are equidistantly arranged around the outer perimeter of the concrete filling layer 1. Protective mechanisms 2 are provided at the bottom left and right ends of the lower protective frame 4. The protective mechanisms 2 are used to provide protection when the device is subjected to crushing. The inner size of the ventilation hole 15 matches the size of the filter screen 16. The size of the concrete filling layer 1 matches the size of the protective frame 4.
[0040] Specifically, in the manufacturing of this precast stone-concrete cable trench cover, stone chips are used instead of traditional river sand, which significantly reduces the production cost of the precast component. Furthermore, the supporting steel bars 6 in the cable trench cover are connected to the corner guards 3 through the first connecting steel bars 5, greatly improving the load-bearing capacity of the middle part of the device. In order to further enhance the stability of the structure, polymer steel bars 8 are set on the outside of the supporting steel bars 6, ensuring that the stone-concrete filling layer 1 can be tightly bonded to the polymer steel bars 8. Even if stone chips are used as a substitute material, the performance of the concrete will not be reduced. In addition, in order to protect the stone-concrete filling layer 1, a protective plate 9 is added around it. The protective plate 9 can effectively prevent the stone-concrete filling layer 1 from cracking due to external impact. Thus, while improving the overall compressive strength of the precast cable trench cover, it also ensures the durability and safety of the product, reduces the user's production cost, and meets the user's needs.
[0041] Reference Figure 1 and Figure 4The protective mechanism 2 includes a support plate 201. Two support plates 201 are respectively set at the bottom left and right ends of the lower protective frame 4. Fixed blocks 202 are fixedly connected to the front and rear sides of the top of the support plate 201. Fixed rods 203 are fixedly connected to the adjacent side of the two fixed blocks 202. Slider 204 is slidably connected to the front and rear sides of the outer wall of the fixed rod 203. Springs 205 are fixedly connected to the opposite side of the two sliders 204. The two springs 205 are fixedly connected to the corresponding fixed blocks 202. Connecting rods 206 are rotatably connected to the inner side of the two springs 205. Rotating blocks 207 are rotatably connected to the top of the two connecting rods 206. The top of the two rotating blocks 207 is fixedly connected to the lower protective frame 4. Slide grooves 12 are opened on the front and rear sides of the top of the support plate 201. The interior of the two slide grooves 12 is slidably connected to the corresponding sliders 204.
[0042] Specifically, when using this device, if a vehicle drives over the cable trench cover and runs over it, the protective frame 4 will move downwards. As the protective frame 4 moves downwards, it will drive the connected rotating block 207 downwards as well. During the downward movement of the rotating block 207, the connecting rod 206 will push the slider 204 to move along the slide groove 12. During the movement of the slider 204, it will apply pressure to the spring 205, causing the spring 205 to compress. After being compressed, the spring 205 will contract, thereby absorbing the impact force of the downward movement caused by the vehicle running over it. This can effectively reduce direct collision with the cable trench, thereby protecting the cable trench cover from damage and improving the practicality of the device.
[0043] Reference Figure 1 , Figure 4 and Figure 5 Support blocks 10 are fixedly connected to the top left and right sides of the stone chip concrete filling layer 1. The top of the two support blocks 10 is rotatably connected to the lifting rings 11. The bottom of the support plate 201 is fixedly connected to the anti-slip pads 13. Rubber pads 14 are fixedly connected to one side of the multiple corner protectors 3.
[0044] Specifically, when the cable trench cover needs to be installed or moved, it can be easily installed and moved by the lifting ring 11 on the top of the support block 10. The anti-slip pad 13 can prevent the cable trench cover from moving during use, and the rubber pad 14 can prevent the cable trench covers from colliding with each other.
[0045] Reference Figure 1 and Figure 5 Ventilation holes 15 are provided on the top left and right sides of the stone chip concrete filling layer 1 near the edge. Filter screens 16 are fixedly connected to the top of the inner side of the two ventilation holes 15. An installation piece 17 is fixedly connected to the middle of the top of the stone chip concrete filling layer 1. A mark 18 is fixedly connected to the top of the installation piece 17.
[0046] Specifically, the ventilation hole 15 allows for ventilation inside the cable trench, and the filter screen 16 prevents debris from entering the cable trench. A label 18 can be set on the top of the mounting plate 17 to number the cable trench cover for easy management.
[0047] Working principle: In this precast stone chip concrete cable trench cover, the stone chip concrete filling layer 1 is poured with C40 stone chip concrete. Stone chips are used instead of river sand during pouring, which can reduce the production cost of the device. In addition, the supporting steel bars 6 in the cable trench cover are connected to the corner guards 3 through the first connecting steel bars 5, which can improve the load-bearing capacity of the middle part of the device. Polymer steel bars 8 are set on the outside of the supporting steel bars 6, so that the stone chip concrete can be tightly connected with the polymer steel bars 8, and the concrete performance will not be reduced due to the use of stone chips. By adding a protective plate 9 around the stone chip concrete filling layer 1, the stone chip concrete filling layer 1 is not easily damaged by impact. While improving the compressive strength of the precast cable trench cover, the use of stone chips instead of river sand can reduce the user's production cost.
[0048] Furthermore, when using this device, if a vehicle runs over the cable trench cover, the protective frame 4 will move downwards. When the protective frame 4 moves downwards, it will drive the rotating block 207 to move downwards as well. When the rotating block 207 moves downwards, it can push the slider 204 to move through the connecting rod 206. At this time, the movement of the slider 204 will compress the spring 205. The spring 205 will contract when compressed and absorb the impact force of the downward movement, making the device less likely to collide with the cable trench due to sudden excessive force.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stone chip concrete cable trench cover preform comprising a stone chip concrete filling layer (1) and support reinforcement (6), characterized in that: The outer four corners of the stone chip concrete filling layer (1) are provided with corner guards (3), the upper and lower sides of the plurality of corner guards (3) are fixedly connected with protection frames (4), the upper and lower ends of the side of the plurality of corner guards (3) are fixedly connected with first connecting steel bars (5), one end of the plurality of first connecting steel bars (5) is respectively fixedly connected with a corresponding supporting steel bar (6), the adjacent side of the two supporting steel bars (6) is fixedly connected with a plurality of second connecting steel bars (7), the front and rear sides of the two supporting steel bars (6) are fixedly connected with a plurality of polymer steel bars (8), a plurality of guard plates (9) are equidistantly arranged on the outer four sides of the stone chip concrete filling layer (1), and the bottom left and right ends of the lower protection frame (4) are provided with protection mechanisms (2), which are used to facilitate the protection of the prefabricated part when it is rolled.
2. A stone chip concrete cable trench cover preform according to claim 1, characterised in that: The protection mechanism (2) comprises a supporting plate (201), two supporting plates (201) are arranged at the bottom left and right ends of the lower protection frame (4), the top front and rear sides of the supporting plate (201) are fixedly connected with fixed blocks (202), the adjacent sides of the two fixed blocks (202) are fixedly connected with fixed rods (203), the outer wall front and rear sides of the fixed rod (203) are slidably connected with sliding blocks (204), the sides away from each other of the two sliding blocks (204) are fixedly connected with springs (205), the two springs (205) are respectively fixedly connected with corresponding fixed blocks (202), the inner sides of the two springs (205) are rotatably connected with connecting rods (206), the top ends of the two connecting rods (206) are rotatably connected with rotating blocks (207), and the tops of the two rotating blocks (207) are fixedly connected with the lower protection frame (4).
3. A stone chip concrete cable trench cover preform according to claim 1, characterised in that: The top left and right sides of the stone chip concrete filling layer (1) are fixedly connected with supporting blocks (10), and the tops of the two supporting blocks (10) are rotatably connected with lifting rings (11).
4. A stone chip concrete cable trench cover preform according to claim 2, characterised in that: The top front and rear sides of the supporting plate (201) are provided with sliding grooves (12), and the inner sides of the two sliding grooves (12) are respectively slidably connected with corresponding sliding blocks (204).
5. A stone chip concrete cable trench cover preform according to claim 2, characterised in that: The bottom of the supporting plate (201) is fixedly connected with a non-slip pad (13), and the side of the plurality of corner guards (3) is fixedly connected with a rubber pad (14).
6. A stone chip concrete cable trench cover preform according to claim 1, characterised in that: The top left and right sides of the stone chip concrete filling layer (1) are fixedly connected with supporting blocks (10), and the tops of the two supporting blocks (10) are rotatably connected with lifting rings (11).
7. A stone chip concrete cable trench cover preform according to claim 6, characterised in that: The inner side size of the air permeable hole (15) matches the size of the filter screen (16), and the size of the stone chip concrete filling layer (1) matches the size of the protection frame (4).
8. A stone chip concrete cable trench cover preform according to claim 1, characterised in that: The top end of the stone chip concrete filling layer (1) is fixedly connected with a mounting piece (17), and the top of the mounting piece (17) is fixedly connected with an identification (18).