A narrow space pipe-through auxiliary device and method

Abstract

The application discloses a kind of narrow space pipe penetrating auxiliary device and method, comprising: the pipe conveying frame being erected along pipe conveying path, the conveying roller multiple with certain interval horizontal rotation installation on the pipe conveying frame for conveying pipe conveying roller, vertical installation on the conveying roller both sides to limit the pipe and prevent pipe from conveying roller on the process of transportation from sliding off limit roller;The limit roller lower end is rotationally connected with the pipe conveying frame, so that the limit roller can be folded parallel to the direction of pipe axis and laid flat, to facilitate unloading pipe.The narrow space pipe penetrating auxiliary device provided by the application has simple structure, convenient installation and wide application range, which can not only play a horizontal constraint role during pipe advancing, but also play a lateral sliding role to assist pipe loading and unloading during pipe loading and unloading, greatly reducing the difficulty of pipe installation and transportation, and improving transportation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of pipeline installation technology, and specifically relates to an auxiliary device for pipe insertion in confined spaces. Background Technology

[0002] With the continuous advancement and development of infrastructure construction in my country, various types of pipelines are increasing. Underground utility tunnels can effectively solve the problem of arranging various urban pipelines. Therefore, more and more cities have begun constructing underground utility tunnels. However, underground utility tunnels are generally long and have narrow spaces, making it difficult for lifting equipment to enter. For pipes with larger diameters, the pipes are usually transported to the installation location first, and then chain hoists are set up at each installation point for installation. This involves a large workload and a complicated and difficult installation process.

[0003] A simple oxygen pipeline threading device with publication number CN203641666U involves placing rollers directly on a frame, then placing the pipeline on the rollers, and transporting the pipeline by pushing or pulling. While this facilitates pipeline transportation, the lack of effective limiting on both sides of the rollers makes it easy for the pipeline to tip over and slip off during transportation, posing a certain safety hazard.

[0004] A pipe-threading auxiliary device with publication number CN213361296U has a technical solution that sets limiting steel bars on both sides of the roller, but requires the cooperation of a winch when transporting the pipe, and the spacing of the limiting steel bars cannot be adjusted, so it can only be used for transporting pipes of one specification.

[0005] Therefore, there is an urgent need to design a device that can more easily install long-distance pipelines to solve the above-mentioned technical problems. Summary of the Invention

[0006] The main objective of this invention is to provide a confined space pipe-insertion auxiliary device and method that is simple in structure, convenient for loading and unloading pipes, and highly applicable, in order to overcome the technical problems of high difficulty in installing and transporting long-distance pipes in confined spaces, easy slippage, and high safety risks.

[0007] This invention is implemented as follows:

[0008] This invention provides a pipe-passing auxiliary device for confined spaces, comprising: a pipe transport frame erected along the pipe transport path; multiple conveying rollers horizontally rotatably mounted on the pipe transport frame at certain intervals for transporting pipes; and limiting rollers vertically mounted on both sides of the conveying rollers to radially limit the pipes and prevent them from slipping off the conveying rollers during transport; the lower end of the limiting rollers is rotatably connected to the pipe transport frame, allowing the limiting rollers to be folded flat in a direction parallel to the pipe axis for easy pipe unloading.

[0009] Preferably, the pipeline transport frame includes two track supports parallel to the pipeline axis for mounting the conveying rollers and a limiting support perpendicular to the pipeline axis for mounting the limiting rollers.

[0010] Preferably, the limiting bracket has a groove perpendicular to the axis of the pipe, and the lower end of the limiting roller is slidably connected to the groove through a sliding member, so that the limiting rollers on both sides of the conveying roller can move towards or away from each other along the groove to accommodate the transportation of rollers of different sizes.

[0011] Preferably, the sliding member includes an adjusting bolt installed from top to bottom in the slide groove and an adjusting nut disposed below the slide groove and threadedly connected to the adjusting bolt.

[0012] Preferably, the limiting roller includes a fixed shaft and a drum coaxially rotatably mounted on the fixed shaft, and the lower end of the fixed shaft is rotatably connected to the head of the adjusting bolt via a hinge.

[0013] Preferably, a self-locking sleeve is also provided at the hinge to keep the limiting roller vertical. The limiting roller can only be folded flat after the self-locking sleeve is opened to expose the hinge.

[0014] Preferably, the top height of the rolling surface of the conveying roller is approximately equal to the top height of the track support.

[0015] Preferably, the outer side of the track support is also provided with a support plate to support the free end of the fixed shaft when the limiting roller is folded and flat.

[0016] Preferably, the track support adopts a segmented design, and each segment of the track support has pre-set fixing holes at both ends. Multiple segments of the track support can be spliced ​​together by connecting plates and fixing bolts according to the pipeline transportation distance to form a continuous conveying channel.

[0017] Preferably, both the track support and the limiting support are angle steel, and the limiting support is symmetrically welded to both sides of the track support.

[0018] The present invention also provides a tube-passing method based on the above-mentioned tube-passing auxiliary device in confined spaces, comprising the following steps:

[0019] S1. Install and set up the pipe-laying auxiliary device according to the pipeline transportation distance;

[0020] S2. Adjust the spacing of the limit rollers according to the pipe diameter so that the limit rollers clamp the pipe;

[0021] S3. Hoist the pipe to be installed onto the conveyor roller of the starting section, and then transport it to the designated location;

[0022] S4. After the pipeline reaches the designated position, lower the limit roller to a horizontal position;

[0023] S5. Push the pipe sideways onto the pipe mounting bracket to splice the pipe.

[0024] The beneficial effects of the confined space tube-passing auxiliary device and method provided by the present invention are:

[0025] (1) The design of the foldable limiting roller can not only play a horizontal constraint role during the pipeline advancement process, but also play a lateral sliding auxiliary role in loading and unloading the pipeline.

[0026] (2) The gravity self-locking sleeve design enables the limit roller to quickly switch between vertical and horizontal states.

[0027] (3) The design of the sliding groove allows the limiting distance of the limiting roller to be adjusted according to the pipes of different sizes, making it more applicable.

[0028] (4) The design of the conveyor rollers that are level with the height of the track support not only reduces the sliding resistance of the pipeline and makes it suitable for transporting larger and longer pipelines, but also makes the loading and unloading of the pipeline more convenient and faster. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a confined space tube-passing auxiliary device provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram illustrating the installation method of the limiting roller in a confined space tube-passing auxiliary device according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram illustrating the working state of a confined space pipe-passing auxiliary device in a transport pipeline, as provided in an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of the working state of a confined space pipe-threading auxiliary device in preparation for unloading a pipe, as provided in an embodiment of the present invention.

[0033] In the diagram: 1-track bracket, 101-fixing hole, 102-connecting plate, 103-fixing bolt, 2-limiting bracket, 201-slide groove, 3-transfer roller, 4-limiting roller, 401-fixed shaft, 402-roller, 5-hinge, 6-adjusting bolt, 7-adjusting nut, 8-self-locking sleeve, 9-support plate, 10-pipe, 11-pipe mounting bracket. Detailed Implementation

[0034] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0035] This invention provides a confined space pipe-passing auxiliary device, comprising: a pipe transport frame erected along the transport path of the pipe 10, a conveying roller 3 rotatably mounted on the pipe transport frame, and limiting rollers 4 vertically mounted on both sides of the conveying roller 3. Specifically:

[0036] like Figure 1 As shown, in this embodiment, the pipeline transport frame includes two track supports 1 parallel to the axis of the pipeline 10 for mounting the conveying rollers 3, and multiple limiting supports 2 perpendicular to the axis of the pipeline 10 for mounting the limiting rollers 4. Multiple conveying rollers 3 are horizontally rotatably mounted between the two track supports 1 at certain intervals to reduce the resistance of transporting the pipeline 10 and facilitate its transport. The limiting supports 2 are symmetrically welded in pairs to both sides of the track supports 1 at regular intervals. Both the track supports 1 and the limiting supports 2 are made of angle steel. Furthermore, the track supports 1 adopt a segmented design, with fixing holes 101 pre-set at both ends of each segment. Multiple track supports 1 can be spliced ​​together using connecting plates 102 and fixing bolts 103 according to the transport distance of the pipeline 10 to form a continuous transport channel.

[0037] The limiting roller 4 is used to radially limit the pipe 10 to prevent the pipe 10 from slipping off the conveying roller 3 during transportation. In this embodiment, the lower end of the limiting roller 4 is rotatably connected to the pipe transport frame, so that the limiting roller 4 can be folded flat in a direction parallel to the axis of the pipe 10. Furthermore, the limiting bracket 2 has a groove 201 perpendicular to the axis of the pipe 10. The lower end of the limiting roller 4 is slidably connected to the groove 201 through a sliding member, so that the limiting rollers 4 on both sides of the conveying roller 3 can slide and adjust their spacing along the groove 201 to accommodate the transportation of rollers of different sizes. The sliding component includes an adjusting bolt 6 installed from top to bottom in the slide groove 201 and an adjusting nut 7 located below the slide groove 201 and threadedly connected to the adjusting bolt 6; the limiting roller 4 includes a fixed shaft 401 and a roller 402 coaxially rotatably mounted on the fixed shaft 401. The lower end of the fixed shaft 401 is rotatably connected to the head of the adjusting bolt 6 via a hinge 5. By loosening the adjusting nut 7, the adjusting bolt 6 and the limiting roller 4 above it can slide horizontally along the slide groove 201. By tightening the adjusting nut 7, the horizontal position of the adjusting bolt 6 and the limiting roller 4 above it can be fixed.

[0038] Furthermore, the top height of the rolling surface of the conveying roller 3 is equivalent to the top height of the track support 1. When the pipe 10 is transported to the designated position, there is no need to use lifting equipment. Just lower the limiting roller 4 and then push the pipe 10 laterally to quickly unload the pipe 10, which greatly improves the loading and unloading efficiency of the pipe 10.

[0039] Furthermore, such as Figure 2 As shown in the preferred embodiment, a self-locking sleeve 8 is also provided at the hinge 5. The self-locking sleeve 8 can slide up and down along the fixed shaft 401 at the lower end of the limiting roller 4. When the limiting roller 4 is upright, the self-locking sleeve 8 will slide down to the lower end of the fixed shaft 401 under the action of gravity and contact the mounting bracket, automatically locking the hinge 5 to prevent the limiting sleeve from rotating around the hinge 5. This keeps the limiting roller 4 in a vertical state and achieves self-locking. By lifting the self-locking sleeve 8 upward to expose the hinge 5, the limiting sleeve can be rotated around the hinge 5 again to achieve quick folding and flattening of the limiting roller 4.

[0040] Furthermore, a support plate 9 is provided on the outer side of the track support 1. The distance between the support plate 9 and the limiting support 2 is approximately equal to the length of the limiting roller 4. The support plate 9 also has a groove corresponding to the shape of the fixed shaft 401 of the limiting roller 4. When the limiting roller 4 is folded flat, the support plate 9 can support the free end of the fixed shaft 401, preventing the limiting roller 4 from being crushed by the pipe 10 after being folded flat.

[0041] The present invention also provides a tube-passing method based on the above-mentioned tube-passing auxiliary device in confined spaces, specifically including the following steps:

[0042] S1. First, according to the transportation distance of the pipeline 10, the track brackets 1 of each section are connected by the connecting plate 102 and the fixing bolts 103, and the conveying rollers 3 are installed to form a continuous track. Then, the limiting brackets 2 are symmetrically welded to both sides of the track brackets 1 at a certain interval. Then, the assembled track brackets 1 are fixed to the pipeline mounting brackets 11 used for installing and fixing the pipeline 10 by U-shaped buckles.

[0043] S2. For example Figure 3 As shown, the limiting roller 4 is installed on the limiting bracket 2 and the radial spacing of the limiting roller 4 is adjusted according to the diameter of the pipe 10 so that the limiting roller 4 can clamp the pipe 10 and ensure the horizontal stability of the pipe 10 during transportation.

[0044] S3. The pipe 10 to be installed is hoisted to the starting shaft and onto the conveyor roller 3 of the starting section. The pipe 10 is then driven forward by manual pushing or cable pulling until it reaches the installation position. Furthermore, multiple teams can be arranged to follow up on subsequent pipes 10 simultaneously, arriving in sections to improve transportation efficiency.

[0045] S4. For example Figure 4 As shown, after the pipe 10 reaches the designated position, the gravity under the limiting roller 4 is used to lift the self-locking sleeve 8 upward, and then the limiting roller 4 is laid down to the horizontal, so that the fixed shaft 401 at the free end of the limiting roller 4 rests on the support plate 9.

[0046] S5. Place the rubber pad on the limit bracket 2 of pipe 10, and then push pipe 10 laterally down onto pipe mounting bracket 11 to splice pipe 10.

[0047] S6. After the transportation of the pipe 10 is completed, the pipe-passing auxiliary device can be removed section by section by loosening the fixing bolts 103 between the two adjacent track support sections 1.

[0048] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A confined space tube-passing auxiliary device, characterized in that, include: A pipe transport frame is erected along the pipe transport path; multiple conveyor rollers are horizontally rotatably mounted on the pipe transport frame at certain intervals for transporting pipes; and limiting rollers are vertically mounted on both sides of the conveyor rollers to radially limit the pipes, preventing them from slipping off during transport. The lower ends of the limiting rollers are rotatably connected to the pipe transport frame, allowing them to fold flat parallel to the pipe axis for easy pipe unloading. The pipe transport frame includes two... A track bracket parallel to the pipe axis is used to install the conveying roller, and a limiting bracket perpendicular to the pipe axis is used to install the limiting roller. The limiting bracket has a groove perpendicular to the pipe axis. The lower end of the limiting roller is slidably connected to the groove via a sliding element, allowing the limiting rollers on both sides of the conveying roller to move towards or away from each other along the groove to accommodate the transport of pipes of different sizes. The sliding element includes an adjusting bolt installed from top to bottom in the groove and an adjusting nut located below the groove and threadedly connected to the adjusting bolt. The limiting roller includes a fixed shaft and a roller coaxially rotatably mounted on the fixed shaft. The lower end of the fixed shaft is rotatably connected to the head of the adjusting bolt via a hinge. A self-locking sleeve is also fitted at the hinge to keep the limiting roller vertical. The limiting roller can only be folded flat after the self-locking sleeve is opened to expose the hinge.

2. The confined space tube-passing auxiliary device as described in claim 1, characterized in that: The top height of the rolling surface of the conveyor roller is approximately equal to the top height of the track support.

3. The confined space tube-passing auxiliary device as described in claim 1, characterized in that: The track support is also provided with a support plate on the outside to support the free end of the fixed shaft when the limiting roller is folded and flat.

4. The confined space tube-passing auxiliary device as described in claim 1, characterized in that: The track support adopts a segmented design, and each segment of the track support has pre-set fixing holes at both ends. Multiple track supports can be disassembled and spliced ​​together by connecting plates and fixing bolts according to the pipeline transportation distance to form a continuous conveying channel.

5. A tube-passing method based on the tube-passing auxiliary device in a confined space as described in claim 1, characterized in that, Includes the following steps: S1. Install and set up the pipe-laying auxiliary device according to the pipeline transportation distance; S2. Adjust the spacing of the limit rollers according to the pipe diameter so that the limit rollers clamp the pipe; S3. Hoist the pipe to be installed onto the conveyor roller of the starting section, and then transport it to the designated location; S4. After the pipeline reaches the designated position, lower the limit roller to a horizontal position; S5. Push the pipe sideways onto the pipe mounting bracket to splice the pipe.

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