A type of prefabricated pipe trench under the road surface

Abstract

This utility model discloses an under-road prefabricated pipe trench, specifically relating to the field of building equipment technology. It includes a pipe trench body with limiting plates securely installed on the left and right sides of the inner wall of the trench body via welding. The upper side of the limiting plates has screw holes for subsequent fastening component installation. Through the cooperation of the limiting plates on both sides of the inner wall of the trench body with a movable positioning frame, upper and lower clamping blocks form a stable space, effectively clamping the pipeline. Fastening screws screwed into the screw holes further stabilize the positioning. A cable rack is welded to the side of the support plate, with spring clamping rods installed in its limiting holes. Combined with anti-detachment plates and anti-slip pads, it can adaptively clamp the cable, ensuring stable fixation. This under-road prefabricated pipe trench, which effectively clamps the pipe and prevents pipe tangling, has significant practical implications. It plays a positive role in ensuring the safe and stable operation of underground pipelines and improving the construction quality and maintenance efficiency of urban infrastructure.

Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, and more specifically, to a prefabricated pipe trench under the road surface. Background Technology

[0002] With the continuous advancement of urbanization, the demand for laying various underground pipelines is increasing. As an important infrastructure for accommodating and protecting these pipelines, the rationality and reliability of underground pipe trenches are of paramount importance.

[0003] A search revealed that patent publication number CN220107540U discloses a prefabricated cable trench support, comprising a cable trench, several concrete supports, and several first fixing screws. An installation groove is formed within the cable trench, and several limiting holes are formed on the inner sidewall of the cable trench. First fixing screw holes are formed on the inner bottom wall of each limiting hole. Because the fixing part of the concrete support is limited by the corresponding limiting holes within the cable trench, the weight of the cable can be offset by the pressure between the fixing part and the cable trench, thereby greatly reducing the vertical pressure on the first fixing screws and improving the stability of the concrete support connection. Furthermore, the use of high-performance concrete supports prevents rust and corrosion during long-term use and reduces the likelihood of damage.

[0004] Pipelines in trenches are mostly placed freely. Since the pipelines are fixed by gravity, they are easily displaced or damaged by ground vibration, construction disturbance, foundation settlement, etc., which affects their function and lifespan. At the same time, due to the lack of reasonable pipeline layout inside the trench, the pipelines are randomly crossed and tangled. The chaotic layout makes daily pipeline inspection and maintenance difficult, and locating pipelines is time-consuming and laborious, increasing costs and difficulty.

[0005] Therefore, a prefabricated pipe trench under the road surface is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a prefabricated pipe trench under the road surface to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an under-road prefabricated pipe trench, comprising a trench body, with limiting plates securely installed on the left and right sides of the inner wall of the trench body by welding. The upper side of the limiting plates has screw holes for subsequent fastening component installation. A positioning frame is movably installed inside the limiting plates, and the positioning frame can be adjusted up and down to a limited extent along the limiting plates. A first fixing block is welded to the bottom of the positioning frame, and an upper clamping block is fixedly installed at the bottom of the first fixing block for upper-level pipe fixing. A fixing rod is provided inside the trench body at a position corresponding to the position directly below the limiting plates, and the fixing rod is perpendicular to the positioning frame. A second fixing block is fixedly installed above the fixing rod, and a lower clamping block is fixedly installed above the second fixing block, with the lower clamping block located directly below the upper clamping block. The two work together to form a clamping space for securely clamping the pipe. A positioning hole is provided at the top of the trench body for easy positioning and installation of a cover plate. A cover plate is provided on the top of the trench body, and the cover plate can cover the opening of the trench body.

[0008] Preferably, a fastening screw is installed in the internal thread of the screw hole. During installation, the fastening screw is slowly screwed into the screw hole until its end abuts against the preset position of the positioning bracket.

[0009] Preferably, a limiting frame is fixedly installed inside the trench body, and during installation, the edge of the limiting frame is in close contact with the inner wall of the trench body.

[0010] Preferably, the upper side of the limiting frame is provided with bolt holes, and a support plate is provided on one side of the limiting frame. Positioning bolts are pre-installed on the upper side of the support plate corresponding to the bolt holes. During installation, the positioning bolts penetrate the support plate vertically and extend into the bolt holes. Through tight thread engagement, the support plate and the limiting frame are reliably fixed.

[0011] Preferably, a cable rack is welded to one side of the support plate. A limiting hole is opened above the cable rack. A clamping rod is movably arranged inside the limiting hole. A spring is sleeved at the bottom of the clamping rod. An anti-detachment plate is fixedly installed at the bottom of the clamping rod. Limiting grooves are opened on the left and right sides of the limiting hole. The anti-detachment plate slides up and down in the limiting grooves. A pressure plate is fixedly installed at the top of the clamping rod. An anti-slip pad is provided inside the pressure plate.

[0012] Preferably, a positioning rod is securely installed on the side of the cable frame away from the support plate by welding. The positioning rod is perpendicular to the surface of the cable frame, and a positioning hole is provided on the upper side of the cable frame. A fixing pin is provided on the upper side of the positioning rod, and the fixing pin is inserted into the positioning hole.

[0013] Preferably, a positioning pin is installed on the top of the cover plate through a preset threaded hole. The positioning pin is installed on the top of the cover plate by means of threads. A strip-shaped through hole is also opened on the side of the cover plate near the positioning pin.

[0014] Preferably, a handle is securely installed on the top of the cover plate by bolt fastening, and the surface of the handle is provided with anti-slip texture.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, this type of prefabricated pipe trench under the road surface has advantages in pipe clamping. Limiting plates on the left and right sides of the inner wall of the trench body cooperate with a movable positioning frame. The positioning frame's upper clamping block and its lower clamping block form a stable clamping space, effectively clamping and fixing the inserted pipeline and preventing it from moving freely within the trench. Simultaneously, the positioning frame is further stabilized by tightening the screws into the pre-set positions of the positioning frames through screw holes, ensuring the reliability of the clamping. Furthermore, for cable fixing, a cable rack welded to one side of the support plate has a spring-loaded clamping rod movably installed in a limiting hole. This, along with a bottom anti-detachment plate sliding within the limiting groove and a pressure plate with an anti-slip pad on top, allows for adaptive clamping according to the cable thickness, providing stable support for the cable.

[0017] Compared with existing technologies, this type of prefabricated pipe trench under the road surface avoids the problem of pipes being placed randomly and tangled in traditional pipe trenches. It uses upper and lower clamping blocks to orderly clamp the pipelines inside the trench, and the cable racks are used to properly fix the cables. This makes all kinds of pipes neatly arranged in the trench, avoiding the problem of pipes being placed randomly and tangled in traditional pipe trenches. It not only facilitates subsequent inspection and maintenance work, but also improves the utilization rate of the internal space of the trench, and ensures the safe and stable operation of pipelines in the trench. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the left-side structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the clamping device of this utility model.

[0021] Figure 4 This is a schematic diagram of the trench body and cover plate placement structure of this utility model.

[0022] The attached diagram is labeled as follows: 1. Trench body; 2. Limiting plate; 3. Screw hole; 4. Positioning frame; 5. Fastening screw; 6. First fixing block; 7. Upper clamping block; 8. Fixing rod; 9. Second fixing block; 10. Lower clamping block; 11. Limiting frame; 12. Bolt hole; 13. Support plate; 14. Positioning bolt; 15. Cable rack; 16. Limiting hole; 17. Clamping rod; 18. Spring; 19. Anti-detachment plate; 20. Limiting groove; 21. Pressure plate; 22. Anti-slip pad; 23. Positioning rod; 24. Fixing pin; 25. Positioning hole; 26. Cover plate; 27. Positioning pin; 28. Strip through hole; 29. ​​Handle. Detailed Implementation

[0023] 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. Example 1

[0024] As attached Figures 1 to 4 The diagram shows an under-road prefabricated pipe trench, comprising a trench body 1. Limiting plates 2 are securely installed on the left and right sides of the inner wall of the trench body 1 via welding. Screw holes 3 are provided on the upper side of the limiting plates 2 for subsequent fastening of components. A positioning frame 4 is movably installed inside the limiting plates 2, and the positioning frame 4 can be adjusted vertically to a limited extent along the limiting plates 2. A first fixing block 6 is welded to the bottom of the positioning frame 4, and an upper clamping block 7 is fixedly installed at the bottom of the first fixing block 6 for upper-level fixing of the pipeline. This is within the trench body 1. A fixing rod 8 is provided at a position directly below the limiting plate 2, and the fixing rod 8 is perpendicular to the positioning frame 4. A second fixing block 9 is fixedly installed above the fixing rod 8, and a lower clamping block 10 is fixedly installed above the second fixing block 9. The lower clamping block 10 is located directly below the upper clamping block 7. The two work together to form a clamping space for firmly clamping the pipeline. A positioning hole 25 is provided on the top of the trench body 1 to facilitate the positioning and installation of the cover plate 26. A cover plate 26 is provided on the top of the trench body 1, and the cover plate 26 can cover the opening of the trench body 1.

[0025] Among them, this BIM-based prefabricated underground pipe trench has significant advantages in pipe clamping and preventing pipe tangling. For pipe clamping, the limiting plates 2 on the left and right sides of the inner wall of the trench body 1 work in conjunction with the movable positioning frame 4. The upper clamping block 7 at the bottom of the positioning frame 4 and the corresponding lower clamping block 10 below it form a stable clamping space, firmly clamping the pipeline and preventing it from moving freely within the trench. Simultaneously, by screwing the fastening screws 5 into the screw holes 3 on the limiting plates 2 to press against the positioning frame 4, the positioning frame 4 can be further stabilized, ensuring the reliability of the clamping and providing a stable fixing environment for the pipeline. Regarding preventing pipe tangling, because the trench uses the above clamping structure to orderly fix the pipeline, various pipelines are neatly arranged within the trench, avoiding the messy situation of randomly placed and intertwined pipelines in traditional trenches. This not only facilitates subsequent pipeline inspection and maintenance, allowing staff to quickly and accurately locate target pipelines and improve work efficiency, but also enhances the utilization rate of the internal space of the trench and ensures the safe and stable operation of pipelines within the trench.

[0026] The trench body 1 serves as the basic framework of the overall structure, with limit plates 2 securely installed on its left and right inner walls via welding. Screw holes 3 are precisely drilled on the upper side of the limit plates 2 for subsequent fastening of components. A positioning frame 4 is movably installed inside the limit plates 2, allowing for limited horizontal adjustment along the limit plates 2 to accommodate pipelines of different sizes. A first fixing block 6 is welded to the bottom of the positioning frame 4, and an upper clamping block 7 is further fixedly installed at the bottom of the first fixing block 6 for upper-level pipeline fixation. A fixing rod 8 is positioned inside the trench body 1, directly below the limit plates 2, and perpendicular to the limit plates 2. A second fixing block 9 is welded above the fixing rod 8, and a lower clamping block 10 is installed above the second fixing block 9, positioned directly below the upper clamping block 7. These two components work together to form a clamping space for securely clamping the pipeline. Furthermore, a positioning hole 25 is provided at the top of the trench body 1 for easy positioning and installation of the cover plate 26. A cover plate 26 is provided on the top of the trench body 1. The cover plate 26 can cover the opening of the trench body 1, which can protect the internal pipelines and prevent foreign objects from entering. Example 2

[0027] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0028] In a preferred embodiment, a fastening screw 5 is installed in the internal thread of the screw hole 3. The screw hole 3 on the limiting plate 2 has a machined thread structure inside. The fastening screw 5 is securely installed in the screw hole 3 by tightly engaging with the thread. During installation, the fastening screw 5 is slowly screwed into the screw hole 3 until its end abuts against the preset position of the positioning frame 4. Through the tightening operation of the fastening screw 5, the limiting plate 2 and the positioning frame 4 achieve precise and reliable positioning, ensuring the stability and assembly accuracy of the overall structure.

[0029] In a preferred embodiment, a limiting bracket 11 is fixedly installed inside the trench body 1 to accommodate the fixing requirements of pipelines or equipment within the trench. During installation, the edge of the limiting bracket 11 fits tightly against the inner wall of the trench body 1, and then the two are firmly connected using a professional welding process, ensuring a seamless connection and meeting strength standards. After welding, the limiting bracket 11 and the trench body 1 form a unified whole, providing a reliable support foundation for subsequent pipeline laying.

[0030] As a preferred embodiment, the upper side of the limiting frame 11 is provided with bolt holes 12, and a support plate 13 is provided on one side of the limiting frame 11. Positioning bolts 14 are pre-installed on the upper side of the support plate 13 corresponding to the bolt holes 12. During installation, the positioning bolts 14 penetrate the support plate 13 vertically and extend into the bolt holes 12. Through tight thread engagement, the support plate 13 and the limiting frame 11 are reliably fixed, ensuring the stability of the overall structure.

[0031] In a preferred embodiment, a cable rack 15 is welded to one side of the support plate 13. A limiting hole 16 is opened above the cable rack 15. A clamping rod 17 is movably arranged inside the limiting hole 16. A spring 18 is sleeved at the bottom of the clamping rod 17. An anti-detachment plate 19 is fixedly installed at the bottom of the clamping rod 17. Limiting grooves 20 are opened on the left and right sides of the limiting hole 16. The anti-detachment plate 19 slides up and down in the limiting grooves 20. A pressure plate 21 is fixedly installed at the top of the clamping rod 17. An anti-slip pad 22 is provided inside the pressure plate 21.

[0032] In a preferred embodiment, a positioning rod 23 is securely installed on the side of the cable rack 15 away from the support plate 13 by welding. The positioning rod 23 is perpendicular to the surface of the cable rack 15, and a positioning insertion hole is provided on its upper side. A fixing pin 24 is provided on the upper side of the positioning rod 23. When the fixing pin 24 is inserted into the positioning insertion hole, quick fixing and disassembly are achieved. The fixing pin 24 adopts an anti-dislodgement design, with a flange or elastic buckle at the head to prevent accidental dislodgement. At the same time, its length is adapted to the thickness of the positioning rod 23 to ensure that the positioning rod 23 fits tightly with the external structure after insertion, thereby improving the overall stability of the cable rack 15.

[0033] In a preferred embodiment, a positioning pin 27 is installed on the top of the cover plate 26 through a pre-set threaded hole. The threaded portion of the positioning pin 27 is tightly screwed into the threaded hole to ensure a stable installation and flexible disassembly. The positioning pin 27 is installed on the top of the cover plate 26 by means of threads. A strip-shaped through hole 28 is also provided on the side of the cover plate 26 near the positioning pin 27. The width and length of the strip-shaped through hole 28 are designed and optimized to avoid affecting the structural strength of the cover plate 26. At the same time, it cooperates with the positioning pin 27 to achieve efficient positioning and fixation of the cover plate 26 in a specific position.

[0034] In a preferred embodiment, a handle 29 is securely installed on the top of the cover plate 26 by bolts. The handle 29 is made of high-strength alloy steel or rust-resistant metal, and its surface is treated with an anti-slip texture to improve grip comfort and safety. Its installation position is close to the edge of the cover plate 26, which conforms to the ergonomic design and makes it easy for workers to operate with one or two hands to achieve quick opening and closing of the cover plate 26. The connection between the handle 29 and the cover plate 26 is rounded to avoid the risk of scratches and enhance the durability of the overall structure.

[0035] The working process of this utility model is as follows: In use, firstly, determine the installation position of the trench body 1, place the trench body 1 at the predetermined position under the road surface, and ensure that it is stable. Then, adjust the position of the positioning frame 4 on the limiting plate 2 to adapt to the installation requirements of pipelines of different sizes. Subsequently, slowly screw the fastening screw 5 into the screw hole 3 on the upper side of the limiting plate 2 until its end abuts against the preset position of the positioning frame 4 to achieve stable fixation of the positioning frame 4. Next, fix the limiting frame 11 inside the trench body 1 to ensure that the edge of the limiting frame 11 is tightly fitted with the inner wall of the trench body 1 to provide additional support and positioning. Then, using the positioning bolt 14 pre-installed on the upper side of the support plate 13, vertically penetrate the support plate 13 and extend into the bolt hole 12 on the upper side of the limiting frame 11. Through the tight engagement of the threads, the support plate 13 and the limiting frame 11 are reliably fixed.

[0036] Subsequently, a cable rack 15 is installed on one side of the support plate 13 by welding. Then, the cable is placed on top of the cable rack 15. By pressing the pressure plate 21 on the top of the clamping rod 17, the clamping rod 17 is moved downward in the limiting hole 16, while the bottom spring 18 is compressed. Place the cable in the clamping space formed by the lower clamping block 10 and the upper clamping block 7, release the pressure plate 21, and the spring 18 will return, allowing the pressure plate 21 to firmly clamp the cable through the anti-slip pad 22. Next, on the side of the cable rack 15 away from the support plate 13, the positioning rod 23 is fixedly installed by welding. When it is necessary to fix or remove the cable rack 15, insert the fixing pin 24 into the positioning hole on the upper side of the positioning rod 23 to achieve quick fixing and removal. Next, place the cover plate 26 on top of the trench body 1, and use the positioning pin 27 on the top of the cover plate 26 and the positioning hole 25 on the top of the trench body 1 for precise positioning. Then, fix the cover plate 26 firmly to the trench body 1 by other fastening methods. Finally, when it is necessary to open or close the cover plate 26, the operator can hold the handle 29, which is firmly installed on the top of the cover plate 26 by bolt fastening. Its surface is treated with anti-slip texture for easy operation.

Claims

1. A prefabricated pipe trench under road surface, comprising a trench body (1), characterized in that: The inner walls of the trench body (1) are securely fitted with limiting plates (2) by welding on both sides. The upper side of the limiting plate (2) is provided with screw holes (3) for subsequent fastening of components. A positioning frame (4) is movably installed inside the limiting plate (2). The positioning frame (4) can be adjusted up and down to a limited extent along the limiting plate (2). A first fixing block (6) is welded to the bottom of the positioning frame (4). An upper clamping block (7) is fixedly installed at the bottom of the first fixing block (6) for upper fixing of the pipeline. The corresponding position inside the trench body (1) is directly below the limiting plate (2). A fixing rod (8) is provided, and the fixing rod (8) is perpendicular to the positioning frame (4). A second fixing block (9) is fixedly installed above the fixing rod (8). A lower clamping block (10) is fixedly installed above the second fixing block (9). The lower clamping block (10) is located directly below the upper clamping block (7). The two work together to form a clamping space for stabilizing the clamping of the pipeline. A positioning hole (25) is provided on the top of the trench body (1) to facilitate the positioning and installation of the cover plate (26). A cover plate (26) is provided on the top of the trench body (1). The cover plate (26) can cover the opening of the trench body (1).

2. The prefabricated pipe trench under the road surface according to claim 1, characterized in that: The screw hole (3) is threaded with a fastening screw (5).

3. The prefabricated pipe trench under the road surface according to claim 2, characterized in that: The trench body (1) is fixedly installed with a limiting frame (11). During the installation process, the edge of the limiting frame (11) is closely fitted with the inner wall of the trench body (1).

4. The prefabricated pipe trench under the road surface according to claim 3, characterized in that: The upper side of the limiting frame (11) is provided with bolt holes (12), and a support plate (13) is provided on one side of the limiting frame (11). A positioning bolt (14) is pre-installed on the upper side of the support plate (13) corresponding to the bolt hole (12). During installation, the positioning bolt (14) penetrates the support plate (13) vertically and extends into the bolt hole (12). Through the tight engagement of the threads, the support plate (13) and the limiting frame (11) are reliably fixed.

5. The prefabricated pipe trench under the road surface according to claim 4, characterized in that: A cable rack (15) is welded to one side of the support plate (13). A limiting hole (16) is opened above the cable rack (15). A clamping rod (17) is movably arranged inside the limiting hole (16). A spring (18) is sleeved on the bottom of the clamping rod (17). An anti-detachment plate (19) is fixedly installed on the bottom of the clamping rod (17). Limiting grooves (20) are opened on the left and right sides of the limiting hole (16). The anti-detachment plate (19) slides up and down in the limiting groove (20). A pressure plate (21) is fixedly installed on the top of the clamping rod (17). An anti-slip pad (22) is provided inside the pressure plate (21).

6. The prefabricated pipe trench under the road surface according to claim 5, characterized in that: A positioning rod (23) is securely installed on the side of the cable frame (15) away from the support plate (13) by welding. The positioning rod (23) is perpendicular to the surface of the cable frame (15). A positioning hole is provided on the upper side of the cable frame (15). A fixing pin (24) is provided on the upper side of the positioning rod (23). The fixing pin (24) is inserted into the positioning hole.

7. The prefabricated pipe trench under the road surface according to claim 4, characterized in that: A positioning pin (27) is installed on the top of the cover plate (26) through a preset threaded hole. The positioning pin (27) is installed on the top of the cover plate (26) by means of threads. A strip-shaped through hole (28) is also provided on the side of the cover plate (26) near the positioning pin (27).

8. The prefabricated pipe trench under the road surface according to claim 4, characterized in that: A handle (29) is securely installed on the top of the cover plate (26) by bolt fastening, and the surface of the handle (29) is provided with anti-slip texture.

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