Multi-pipe-position resistance-reducing pipe penetrating device
By using a multi-position resistance-reducing pipe-pushing device, which utilizes a support platform, limiting brackets, and roller structure, the problem of increased friction during the jacking of reinforced concrete sleeves is solved, thereby reducing the number of pipe-pushing operations and friction, and improving construction efficiency and pipeline protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-06
AI Technical Summary
During the jacking process of reinforced concrete sleeves, the friction increases with the jacking length, which increases the difficulty of construction, especially when multiple pipes are being jacked, requiring repeated construction, and the outer wall of the pipe is easily worn.
A multi-position resistance-reducing pipe-pushing device is adopted, including a support platform, a limiting bracket, and rollers. The rollers are set below the support platform via an installation frame. The rollers are made of high-strength wear-resistant material and covered with a rubber layer. The telescopic structure adapts to reinforced concrete sleeves of different sizes. The outer protective pipe protects the pipe, reduces the number of pipe-pushing operations, and reduces step resistance.
Reduce the number of times pipes are threaded, decrease the friction between the pipe and the reinforced concrete sleeve, improve the efficiency and stability of pipe threading, and protect the pipe from damage.
Smart Images

Figure CN223975665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to pipeline installation devices, specifically to a multi-pipe position resistance-reducing pipe-passing device. Background Technology
[0002] As a trenchless technology, pipe jacking has been widely adopted both domestically and internationally. Since the 1980s, successful cases of long-distance pipe jacking have been numerous both at home and abroad. During the construction of reinforced concrete sleeve pipe jacking, the pipeline is divided into multiple sections by applying the relay principle, and relay stations are added between the sections, thereby distributing the overall frictional force to multiple parts. After the reinforced concrete sleeve is jacked, pipe threading is required. Pipe threading commonly uses two installation methods: traction and pushing. Because the inner wall of the reinforced concrete sleeve may be uneven during jacking, the resistance encountered during threading increases. Therefore, in long-distance pipe jacking operations, effectively addressing the problem of continuously increasing frictional force with the jacking length becomes crucial for pipe threading. Furthermore, in the past, only a single pipe could usually be threaded at a time. If multiple pipes needed to be threaded, the threading process had to be repeated multiple times, increasing the construction difficulty and causing severe wear on the outer wall of the pipe. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned problems and provide a multi-position resistance-reducing pipe-threading device. This device can not only reduce the number of pipe-threading operations, but also reduce the step resistance between the pipe and the reinforced concrete sleeve during the pipe-threading process, thereby improving the efficiency of pipe-threading.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A multi-position resistance-reducing pipe-passing device includes a support platform, limiting brackets, and rollers. Two limiting brackets are provided and fixedly installed on both sides of the support platform. The rollers are installed below the support platform via a mounting bracket.
[0006] The working principle of the above-mentioned multi-pipe position resistance-reducing pipe-passing device is as follows:
[0007] During operation, multiple multi-position resistance-reducing pipe-threading devices are first placed into the reinforced concrete sleeve. Then, the front ends of multiple pipes are placed on the support platform. The pipes are then pushed forward along the support platform of the multiple multi-position resistance-reducing pipe-threading devices. This not only reduces the number of pipe-threading operations but also reduces the step resistance between the pipes and the reinforced concrete sleeve during the pipe-threading process, thereby improving the efficiency of pipe-threading.
[0008] In a preferred embodiment of this utility model, the limiting bracket is arc-shaped and used to support and fix multiple pipes, ensuring that the multiple pipes remain stable during the installation project.
[0009] In a preferred embodiment of this invention, the rollers are arranged in three sets and distributed along an arc-shaped path on a plane parallel to the cross-section of the pipe. This provides greater support force, better stability, and reduces the likelihood of swaying.
[0010] Furthermore, each set of rollers includes three rollers arranged in an equilateral triangle. On flat ground, the lower rollers bear the main load, while the upper rollers are retracted. When the lower rollers encounter an obstacle, the rotation axis rotates, and the upper rollers traverse the obstacle, ensuring the trailer travels smoothly.
[0011] In a preferred embodiment of this utility model, the roller is made of high-strength wear-resistant material and its surface is covered with a rubber layer.
[0012] Furthermore, the rollers are connected to the mounting frame via a telescopic structure to accommodate reinforced concrete sleeves of different sizes, making them more flexible.
[0013] In a preferred embodiment of this utility model, the system further includes several outer protective tubes placed on a support platform, with the pipeline extending into the outer protective tubes. By providing outer protective tubes, the pipeline can be protected, preventing friction between pipelines and between the pipeline and the vehicle, while ensuring that the relative positions of the multiple pipelines remain unchanged.
[0014] Compared with the prior art, the present invention has the following advantages:
[0015] The pipe-threading device of this invention can support the movement of multiple pipes within a reinforced concrete sleeve. This not only reduces the number of pipe-threading operations but also reduces the step resistance between the pipe and the reinforced concrete sleeve during the pipe-threading process, thereby improving the efficiency of pipe-threading. Attached Figure Description
[0016] Figure 1 This is a simplified front view of the multi-tube position resistance-reducing tube insertion device of this utility model.
[0017] Figure 2 This is a simplified side view of the multi-tube position resistance-reducing tube insertion device of this utility model. Detailed Implementation
[0018] To enable those skilled in the art to fully understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0019] Combination Figures 1-2The multi-position resistance-reducing pipe-passing device of this embodiment includes a support platform 1, a limiting bracket 2, and rollers 3. Two limiting brackets 2 are provided and fixedly installed on both sides of the support platform 1. The rollers 3 are installed below the support platform 1 through a mounting bracket 4.
[0020] Combination Figure 1 The limiting bracket 2 is arc-shaped and is used to support and fix multiple pipes 5 to ensure that the multiple pipes 5 remain stable during the installation project.
[0021] Combination Figure 1 The rollers 3 are provided in three sets and are distributed in an arc shape on a plane parallel to the cross-section of the pipe 5. This provides greater support force and better stability, making it less prone to swaying.
[0022] Combination Figure 2 Each set of rollers 3 includes three rollers 3 arranged in an equilateral triangle. On a flat surface, the lower roller 3 bears the main load, while the upper roller 3 is retracted. When the lower roller 3 is obstructed (i.e., encounters an obstacle), the rotation axis rotates, and the upper roller 3 flips over the obstacle, ensuring the trailer moves smoothly.
[0023] Specifically, the roller 3 is made of high-strength wear-resistant material and its surface is covered with a rubber layer.
[0024] Furthermore, the roller 3 is connected to the mounting frame 4 via a telescopic structure to accommodate reinforced concrete sleeves 6 of different sizes, making it more flexible.
[0025] Combination Figures 1-2 It also includes several outer protective tubes 7, which are placed on a support platform, and the pipe 5 extends into the outer protective tubes 7. By setting the outer protective tubes 7, the pipe 5 can be protected, preventing friction between pipes 5 and between pipe 5 and vehicle, while ensuring that the relative positions of multiple pipes 5 do not change.
[0026] Combination Figures 1-2 The working principle of the above-mentioned multi-pipe position resistance-reducing pipe-passing device is as follows:
[0027] During operation, multiple multi-position resistance-reducing pipe-threading devices are first placed into the reinforced concrete sleeve 6. Then, the front ends of multiple pipes 5 are placed on the support platform 1. The multiple pipes 5 are then pushed forward along the support platform 1 of the multiple multi-position resistance-reducing pipe-threading devices. This not only reduces the number of pipe-threading operations but also reduces the step resistance between the pipes 5 and the reinforced concrete sleeve 6 during the pipe-threading process, thereby improving the efficiency of pipe-threading.
[0028] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A multi-lumen reduced resistance tube passing device, comprising: Including platform, limiting support and the roller, the limiting support is equipped with two and is fixedly arranged at both sides of the platform, the roller is arranged below the platform through the mounting frame.
2. The multiple tube location resistance reducing tube device of claim 1, wherein, The limiting support is arc-shaped, used for supporting and fixing multiple pipelines.
3. The multiple tube location resistance reducing tube device of claim 1, wherein, The roller is provided with three groups and is distributed along the arc-shaped route on the plane parallel to the section of the pipeline.
4. The multiple tube location resistance reducing tube device of claim 3, wherein, Each group of rollers includes three rollers distributed in an equilateral triangle.
5. The multiple tube location resistance reducing tube device of claim 1, wherein, The roller is made of high-strength wear-resistant material and is coated with a rubber layer on the surface.
6. The multiple tube location resistance reducing tube device of claim 1, wherein, The roller is connected with the mounting frame through a telescopic structure.
7. The multiple tube location resistance reducing tube device of claim 1, wherein, Further comprising several outer protective tubes, the outer protective tubes are placed on the support platform, and the pipelines extend into the outer protective tubes.