A pipeline laying device for road construction
The mechanized design of the trolley device enables preliminary soil preparation and compaction during pipeline laying, solving the problem of soil accumulation, improving construction quality and efficiency, and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI GUODA CONSTR ENG CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-05
AI Technical Summary
During the construction of existing pipeline laying devices, the excavated soil piled up on both sides of the trench needs to be backfilled manually, which increases the construction steps and labor costs, and may also cause the trench to collapse or the pipeline to be exposed, affecting the construction quality and progress.
The system employs a trolley device equipped with a reciprocating lead screw, threaded sleeve, connecting block, grooving drill bit, motor, and leveling mechanism to achieve continuous operations of grooving, pipe laying, soil covering, and leveling. It completes the initial soil preparation and compaction through mechanization, reducing manual adjustments.
It improves the flatness and stability of pipeline laying, reduces subsequent construction adjustment procedures, increases construction efficiency, and reduces the intensity of manual labor.
Smart Images

Figure CN224326786U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of urban road construction technology, and specifically relates to a pipeline laying device for urban road construction. Background Technology
[0002] In urban road construction, pipeline laying refers to the engineering process of burying various underground public utility pipelines (such as water supply, drainage, electricity, communication and gas) under the road according to planning requirements. This is one of the core links in urban infrastructure construction, ensuring the coordinated operation of municipal functions and roads. Therefore, pipeline laying equipment is needed to bury the pipelines.
[0003] The prior art CN221743343U discloses a pipeline laying device, including a base. The bottom surface of the base is fixedly connected to a caster wheel, and the upper surface of the base is fixedly connected to a push column. The side wall of the push column is fixedly connected to a push rod, and the upper surface of the base is fixedly connected to a support plate. A rotating shaft is provided on one side of the support plate, and one end of the rotating shaft passes through the side wall of the support plate and is rotatably connected to the support plate. A pipeline is sleeved on the side wall of the rotating shaft located inside the support plate, and a through-hole is opened on the upper surface of the base.
[0004] When pipeline installation is required, pushing the push rod moves the aforementioned device forward. As it moves forward, the soil-breaking device breaks a trench in the grass, and the drive device rotates the shaft, allowing the pipeline to fall into the trench through the hole. This prevents extensive damage to the lawn and eliminates the need for manual trench excavation, saving significant manpower and resources. However, in actual use, some shortcomings still exist. For example, after digging the trench and burying the pipeline, the excavated soil often accumulates on both sides of the trench, requiring manual backfilling and leveling. This not only increases construction steps and labor costs but may also lead to trench collapse or pipeline exposure due to untimely backfilling, affecting construction quality and progress.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this utility model is to provide a pipeline laying device for urban road construction, so as to solve the problems existing in the prior art.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A pipeline laying device for urban road construction includes a trolley. A take-up roller is rotatably connected to the top of the trolley, and a laying roller is rotatably connected to the bottom of the trolley. A reciprocating screw is rotatably connected to the outer wall of the trolley. A first motor for driving the reciprocating screw is provided on the outer wall of the trolley. A threaded sleeve is threadedly connected to the outer surface of the reciprocating screw. A connecting block is fixedly connected to the outer surface of the threaded sleeve. A grooving drill bit is rotatably connected inside the connecting block. A fixing block is sleeved on the outer surface of the grooving drill bit. A second motor for driving the grooving drill bit is provided on the top of the fixing block. A leveling mechanism is provided on the outer wall of the trolley.
[0009] Furthermore, the leveling mechanism includes a rotating rod rotatably connected to the outer wall of the trolley, and a gear is fixedly connected to the top end of the rotating rod.
[0010] Furthermore, a rack that meshes with the gear is fixedly connected to the outer wall of the fixing block, and a sector tooth is fixedly connected to the end of the rotating rod away from the gear.
[0011] Furthermore, a guide block is provided outside the sector teeth, and a plurality of teeth that mesh with the sector teeth are fixedly connected to the inner wall of the guide block.
[0012] Furthermore, a pusher block is fixedly connected to the bottom of the guide block, and a smoothing roller is rotatably connected to the outer wall of the trolley.
[0013] Furthermore, a limiting block is fixedly connected to the outer wall of the guide block, and the limiting block is slidably connected to the outer wall of the trolley.
[0014] Furthermore, a limit rod is fixedly connected to the outer wall of the trolley, and the threaded sleeve is slidably connected to the outer surface of the limit rod.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This invention utilizes a first motor, a reciprocating lead screw, a threaded sleeve, a connecting block, a grooving drill bit, a second motor, a fixing block, a rack, a gear, a rotating rod, a sector tooth, a guide block, teeth, and a push block. When the first motor drives the reciprocating lead screw to rotate, the threaded sleeve reciprocates linearly along the lead screw. The connecting block moves with the threaded sleeve, driving the grooving drill bit to perform transverse reciprocating grooving operations. Furthermore, the guide block drives the push block to initially prepare the excavated soil. During this process, the smoothing roller further compacts and smooths the initially prepared soil, significantly improving the flatness and stability of the pipeline laying, reducing subsequent adjustment procedures, and increasing overall construction efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 for Figure 1 Side view from below;
[0019] Figure 3 This is a schematic diagram of the grooving drill bit and push block of this utility model;
[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0021] Figure 5 for Figure 3 Enlarged view of section B in the middle.
[0022] Explanation of key figure labels:
[0023] 1. Trolley; 2. Take-up roller; 3. Laying roller; 4. Reciprocating lead screw; 5. First motor; 6. Threaded sleeve; 7. Connecting block; 8. Grooving drill bit; 9. Fixing block; 10. Second motor; 11. Rotating rod; 12. Gear; 13. Rack; 14. Sector tooth; 15. Guide block; 16. Tooth; 17. Push block; 18. Smoothing roller; 19. Limiting block; 20. Limiting rod. Detailed Implementation
[0024] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Example
[0026] See appendix Figure 1-5 A pipeline laying device for urban road construction includes a trolley 1, a take-up roller 2 rotatably connected to the top of the trolley 1, a laying roller 3 rotatably connected to the bottom of the trolley 1, a reciprocating screw 4 rotatably connected to the outer wall of the trolley 1, a first motor 5 for driving the reciprocating screw 4 to rotate on the outer wall of the trolley 1, a threaded sleeve 6 threadedly connected to the outer surface of the reciprocating screw 4, a connecting block 7 fixedly connected to the outer surface of the threaded sleeve 6, a grooving drill bit 8 rotatably connected inside the connecting block 7, a fixing block 9 sleeved on the outer surface of the grooving drill bit 8, a second motor 10 for driving the grooving drill bit 8 to rotate on the top of the fixing block 9, and a leveling mechanism on the outer wall of the trolley 1.
[0027] The leveling mechanism includes a rotating rod 11 rotatably connected to the outer wall of the trolley 1, with a gear 12 fixedly connected to the top of the rotating rod 11; a rack 13 that meshes with the gear 12 is fixedly connected to the outer wall of the fixing block 9; a sector tooth 14 is fixedly connected to the end of the rotating rod 11 away from the gear 12; a guide block 15 is provided outside the sector tooth 14; a plurality of teeth 16 that mesh with the sector tooth 14 are fixedly connected to the inner wall of the guide block 15; a push block 17 is fixedly connected to the bottom of the guide block 15; and a smoothing roller 18 is rotatably connected to the outer wall of the trolley 1.
[0028] Specifically, when it is necessary to dig up the soil for pipeline laying, the first motor 5 is started first. The first motor 5 drives the reciprocating screw 4 to rotate, so that the threaded sleeve 6 reciprocates along the axis of the reciprocating screw 4. The connecting block 7 moves synchronously with the threaded sleeve 6, thereby driving the grooving drill bit 8 to perform reciprocating grooving operations on the ground. At the same time, the second motor 10 is started, driving the grooving drill bit 8 to rotate at high speed, so as to efficiently dig the soil. The soil generated during the grooving process is separated to both sides of the trench.
[0029] After the pipeline is released from the take-up roller 2 and guided by the laying roller 3 into the prepared trough, the trolley 1 continues to move forward. As the threaded sleeve 6 moves, the rack 13 on the outer wall of the fixed block 9 continuously meshes with the gear 12 at the top of the rotating rod 11, causing the rotating rod 11 to rotate. The sector tooth 14 at the other end of the rotating rod 11 rotates accordingly. The sector tooth 14 interacts with the teeth 16 on the inner wall of the guide block 15, causing the guide block 15 to reciprocate in the horizontal direction. The push block 17 at the bottom of the guide block 15 moves synchronously, pushing the soil accumulated on both sides of the trough after grooving towards the inner edge of the trough. The smoothing roller 18 compacts and smooths the soil above the buried pipeline to ensure that the ground is flat after the pipeline is laid.
[0030] Throughout the entire operation, the movement of the trolley 1 provides basic support for the coordinated operation of each mechanism, the winding roller 2 continuously releases the pipeline, and the laying roller 3 ensures that the pipeline enters the trench in a stable posture, avoiding deviation or twisting of the pipeline during the laying process. The reciprocating motion of the grooving drill bit 8, combined with rotary cutting, can create trenches of appropriate width and depth according to actual needs. The leveling mechanism, through mechanical transmission, converts the movement of the threaded sleeve 6 into the action of the push block 17 and the smoothing roller 18, realizing the continuous operation of grooving, pipe laying, soil covering and leveling, effectively improving the efficiency and quality of pipeline laying. Furthermore, there is no need for manual refilling of the excavated soil afterward, reducing the labor intensity of manual operation.
[0031] A limiting block 19 is fixedly connected to the outer wall of the guide block 15, and the limiting block 19 is slidably connected to the outer wall of the trolley 1. The setting of the limiting block 19 can strictly limit the reciprocating range of the guide block 15, preventing the guide block 15 from deviating from the preset trajectory due to inertia or other external forces during horizontal movement, ensuring that the push block 17 always moves within the effective working area on both sides of the trough. The limiting block 19 and the outer wall of the trolley 1 adopt a sliding fit, which can not only provide stable support for the guide block 15, but also reduce the frictional resistance during the movement, ensuring the smoothness and stability of the movement of the guide block 15, further improving the accuracy and efficiency of the push block 17 in leveling the soil, and avoiding the situation where the soil on both sides of the trough is unevenly leveled due to the deviation of the guide block 15.
[0032] A limiting rod 20 is fixedly connected to the outer wall of the trolley 1, and a threaded sleeve 6 is slidably connected to the outer surface of the limiting rod 20. The limiting rod 20 provides precise guidance for the horizontal movement of the threaded sleeve 6, ensuring that the threaded sleeve 6 can only move linearly along the axis of the limiting rod 20 under the drive of the reciprocating screw 4. This prevents the threaded sleeve 6 from rotating circumferentially or radially, ensuring that the threaded sleeve 6 can stably and accurately drive the connecting block 7 to reciprocate, allowing the grooving drill bit 8 to smoothly complete the excavation operation. The limiting rod 20 and the threaded sleeve 6 adopt a clearance fit design, which ensures the smooth sliding of the threaded sleeve 6 while strictly constraining its movement trajectory, preventing the grooving of the threaded sleeve 6 from affecting the working accuracy of the grooving drill bit 8, and providing strong support for pipeline laying.
[0033] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A pipeline laying device for urban road construction, characterized in that, include: A trolley has a take-up roller rotatably connected to its top and a laying roller rotatably connected to its bottom. A reciprocating screw is rotatably connected to the outer wall of the trolley. A first motor for driving the reciprocating screw is installed on the outer wall of the trolley. A threaded sleeve is threadedly connected to the outer surface of the reciprocating screw. A connecting block is fixedly connected to the outer surface of the threaded sleeve. A grooving drill bit is rotatably connected inside the connecting block. A fixing block is sleeved on the outer surface of the grooving drill bit. A second motor for driving the grooving drill bit is installed on the top of the fixing block. A leveling mechanism is installed on the outer wall of the trolley.
2. The pipeline laying device for urban road construction according to claim 1, characterized in that, The leveling mechanism includes a rotating rod rotatably connected to the outer wall of the trolley, and a gear is fixedly connected to the top end of the rotating rod.
3. The pipeline laying device for urban road construction according to claim 2, characterized in that, The outer wall of the fixed block is fixedly connected to a rack that meshes with the gear, and the end of the rotating rod away from the gear is fixedly connected to a sector tooth.
4. The pipeline laying device for urban road construction according to claim 3, characterized in that, A guide block is provided outside the sector teeth, and multiple teeth that mesh with the sector teeth are fixedly connected to the inner wall of the guide block.
5. The pipeline laying device for urban road construction according to claim 4, characterized in that, A pusher block is fixedly connected to the bottom of the guide block, and a smoothing roller is rotatably connected to the outer wall of the trolley.
6. The pipeline laying device for urban road construction according to claim 4, characterized in that, A limit block is fixedly connected to the outer wall of the guide block, and the limit block is slidably connected to the outer wall of the trolley.
7. The pipeline laying device for urban road construction according to claim 1, characterized in that, A limit rod is fixedly connected to the outer wall of the trolley, and the threaded sleeve is slidably connected to the outer surface of the limit rod.