A pipeline crawler loading rack

By designing a loading frame for the pipe crawler and using limit wheels and T-blocks for lifting, the pipe crawler was able to enter the pipe on its own, solving the safety risks caused by multiple people working together to lift it in the existing technology, and improving safety and efficiency.

CN224350310UActive Publication Date: 2026-06-12SICHUAN DIPAIRUI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN DIPAIRUI TECH CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing pipe crawlers, due to their heavy weight, require multiple people to lift and place them during installation, which can easily lead to accidents such as being crushed or twisted, posing a significant safety risk.

Method used

A pipe crawler loading frame was designed, including symmetrically arranged loading units and loaders. By limiting the wheels and using T-blocks for lifting, the pipe crawler can enter the pipe on its own, reducing manual operation.

Benefits of technology

By using a pipeline crawler loading rack, personnel requirements are reduced, safety is improved, and the accident rate is lowered.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224350310U_ABST
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Abstract

A loading frame for a pipe crawler includes a pair of separate loading units symmetrically arranged in use. Each loading unit includes a stabilizing frame and a loader. The stabilizing frame includes an n-shaped frame with an inverted L-shaped frame at the outer end of one vertical side and a vertical plate at the outer end of the other vertical side. The distance between the vertical sides of the n-shaped frame and the inverted L-shaped frame, as well as the distance between the vertical side of the n-shaped frame and the vertical plate, are matched to the wheel diameter of the pipe crawler. An n-shaped guard plate is provided on one side of the n-shaped frame, an inverted L-shaped guard plate is provided on one side of the inverted L-shaped frame, and a vertical guard plate is provided on one side of the vertical plate. Shovel plates are provided between the n-shaped frame and the inverted L-shaped frame, and between the n-shaped frame and the vertical plate. The loader includes an outer handle with a pair of sliding plates on one side. A T-shaped block is provided at the lower end of one side of each sliding plate. The long side of one T-shaped block slides between the n-shaped frame and the inverted L-shaped frame, and the long side of the other T-shaped block slides between the n-shaped frame and the vertical plate. This invention can save manpower and significantly improve safety.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipeline inspection, and in particular to a pipeline crawler loading frame. Background Technology

[0002] A pipe crawler, also known as a pipe crawler vehicle, is a device used to inspect pipes inside pipes. A common pipe crawler structure is shown in the patent with publication number CN218703053U, which includes four wheels connected to the main body of the pipe crawler via axles.

[0003] When laying energy transmission pipelines such as natural gas, overhead installation is typically used, with the pipeline a certain distance above the ground. Currently, a pipeline crawler is used to directly lift and place it into the pipeline. However, pipeline crawlers are usually quite heavy, requiring 3 to 4 people to work together: two to lift, one to align, and one to assist. Furthermore, during the lifting or placement process, fatigue, coordination errors, and imbalances can easily lead to injuries such as being crushed or twisted, posing a significant risk. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a pipeline crawler loading rack that can save on personnel requirements and significantly improve safety.

[0005] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0006] A pipe crawler loading rack includes a pair of separate loading units that are symmetrically arranged during use. Each loading unit includes:

[0007] The stabilizing frame includes an n-shaped frame, with an inverted L-shaped frame at the outer end of one vertical side and a vertical plate at the outer end of the other vertical side. The distance between the vertical sides of the n-shaped frame and the inverted L-shaped frame, as well as the distance between the vertical side of the n-shaped frame and the vertical plate, are matched with the wheel diameter of the pipe crawler. An n-shaped guard plate is provided on one side of the n-shaped frame, an inverted L-shaped guard plate is provided on one side of the inverted L-shaped frame, and a vertical guard plate is provided on one side of the vertical plate. Shovel plates are provided between the n-shaped frame and the inverted L-shaped frame, and between the n-shaped frame and the vertical plate.

[0008] The loader, which slides vertically onto the stabilizer, includes an outer handle and a pair of sliding plates on one side. A T-shaped block is provided at the lower end of one side of the sliding plate. The long side of one T-shaped block slides between the n-shaped frame and the inverted L-shaped frame, and the long side of the other T-shaped block slides between the n-shaped frame and the vertical plate.

[0009] Furthermore, each loading unit's n-shaped frame has an inner handle on one side facing away from the other loading unit on both vertical sides.

[0010] Furthermore, a horizontal guard plate is provided at the upper end of one end face of the vertical guard plate. The distance between the horizontal guard plate and the inverted L-shaped guard plate, as well as the distance between the horizontal guard plate and the n-shaped guard plate, are matched with the wheel axle of the pipe crawler.

[0011] Furthermore, n-shaped guard plates are provided on both sides of the n-shaped frame, and notches are opened at the lower ends of the two vertical sides of the n-shaped guard plate. Inverted L-shaped guard plates are provided on both sides of the inverted L-shaped frame, and notches are also opened at the lower ends of the vertical sides of the inverted L-shaped guard plate. Vertical guard plates are provided on both sides of the vertical plate, and notches are also opened at the lower ends of the vertical guard plate. A wheel inlet is formed in the space between the two opposite end faces of the n-shaped frame and the inverted L-shaped frame and below the notch of the inverted L-shaped guard plate and the notch of the n-shaped guard plate. Another wheel inlet is formed in the space between the two opposite end faces of the n-shaped frame and the vertical plate and below the notch of the vertical guard plate and the other notch of the n-shaped guard plate.

[0012] Furthermore, the shovel plate is located below the wheel inlet.

[0013] Furthermore, one T-shaped block slides along its short side between the n-shaped guard plate and the inverted L-shaped guard plate, and another T-shaped block slides along its short side between the n-shaped guard plate and the vertical guard plate.

[0014] Furthermore, when the T-block moves to the lowest point, its upper surface is on the same horizontal plane as the highest point of the shovel plate.

[0015] The beneficial effects of this technical solution are as follows:

[0016] By limiting the wheels of the pipe crawler, indirectly lifting the pipe crawler via T-blocks, and guiding the pipe crawler into the pipe on its own, the personnel required for alignment or assistance can be reduced, and the accident rate can be decreased. Attached Figure Description

[0017] Figure 1 An overall perspective view of an embodiment of this application is shown.

[0018] Figure 2 An exploded view of a single loading unit according to an embodiment of this application is shown.

[0019] Figure 3 A perspective view of the stabilizer according to an embodiment of this application is shown when the single-sided n-shaped guard plate, inverted L-shaped guard plate, vertical guard plate, and horizontal guard plate are concealed. Detailed Implementation

[0020] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-3 The pipeline crawler loading frame shown includes a pair of separate loading units that are symmetrically arranged in use. Each loading unit includes a stabilizer 1 and a loader 2.

[0022] The stabilizing frame 1 includes an n-shaped frame 11. An inverted L-shaped frame 12 is provided at the outer end of one vertical side of the n-shaped frame 11, and a vertical plate 13 is provided at the outer end of the other vertical side of the n-shaped frame 11. The distance between the vertical sides of the n-shaped frame 11 and the inverted L-shaped frame 12, and the distance between the vertical side of the n-shaped frame 11 and the vertical plate 13, are matched to the wheel diameter of the pipe crawler. Matching means slightly larger, i.e., the distance is 5mm to 1cm larger than the diameter. Each loading unit's n-shaped frame 11 has a pair of first crossbars on the side facing away from the other loading unit on both vertical sides. One end of each first crossbar has an inner handle. 111, that is, one side of the inner grip 111 is fixedly connected to one end of each of the two first crossbars. The three-sided continuous structure formed by the upper end face of the n-shaped frame 11 and the outer end faces of the two vertical sides is provided with n-shaped guard plates 14 on both sides. During operation, notches are opened at the lower ends of the two vertical sides of the n-shaped guard plate 14 on the side opposite to the other loading unit. The two-sided continuous structure formed by the upper end face of the inverted L-shaped frame 12 and the outer end faces of the vertical sides is provided with inverted L-shaped guard plates 15 on both sides. During operation, notches are also opened at the lower ends of the vertical sides of the inverted L-shaped guard plate 15 on the side opposite to the other loading unit. Vertical plate 1 3. Vertical guard plates 16 are provided on both sides. During operation, a notch is also opened at the lower end of the vertical guard plate 16 on the side opposite to the other loading unit. A horizontal guard plate 17 is provided at the upper end of one end face of the vertical guard plate 16. The distance between the horizontal guard plate 17 and the inverted L-shaped guard plate 15, and the distance between the horizontal guard plate 17 and the n-shaped guard plate 14 are matched with the wheel axle of the pipe crawler. The meaning of matching is the same as above. A wheel inlet 18 is formed in the space between the two opposite end faces of the n-shaped frame 11 and the inverted L-shaped frame 12, and below the notch of the inverted L-shaped guard plate 15 and the notch of the n-shaped guard plate 14. For the passage of the front wheels of the pipe crawler, another wheel inlet 18 is formed in the space between the two opposite end faces of the n-shaped frame 11 and the vertical plate 13 and below the notch of the vertical guard plate 16 and the other notch of the n-shaped guard plate 14. For the passage of the rear wheels of the pipe crawler, a shovel plate 19 is provided between the n-shaped frame 11 and the inverted L-shaped frame 12, and between the n-shaped frame 11 and the vertical plate 13, located below the wheel inlet 18. The height of the inclined surface of the shovel plate 19 gradually decreases towards the other loading unit. Preferably, a bottom plate is also provided at one end of the lower end of the vertical surface of the shovel plate 19.

[0023] The loader 2 slides vertically onto the stabilizer 1, including an outer handle 21. One side of the loader has a pair of second crossbars 22, and one end of each second crossbar 22 has a sliding plate 23. The lower end of one side of the sliding plate 23 has a T-shaped block 24. The long side of one T-shaped block 24 slides between the n-shaped frame 11 and the inverted L-shaped frame 12, and the short side slides between an n-shaped guard plate 14 and an inverted L-shaped guard plate 15. The long side of the other T-shaped block 24 slides between the n-shaped frame 11 and the vertical plate 13, and the short side slides between an n-shaped guard plate 14 and a vertical guard plate 16. When the T-shaped block 24 moves to the lowest point, its upper surface is at the same level as the highest point of the shovel plate 19, and the T-shaped block 24 abuts against the bottom plate.

[0024] Work style:

[0025] First, the pipe crawler is placed on the ground below the pipe. Then, two workers operate a loading unit, specifically, by controlling it with the inner handle 111. One loading unit clamps the pipe crawler from the left and the other from the right. Specifically, the shovels 19 are used to scoop up the pipe crawler from below each wheel, so that each wheel enters through the wheel inlet 18 between the n-shaped frame 11 and the inverted L-shaped frame 12, or between the n-shaped frame 11 and the vertical plate 13. Then, the horizontal part of the inverted L-shaped guard plate 15 is moved into the pipe.

[0026] Then, holding the second crossbar 22, the pipe crawler is lifted by the T-block 24. When the T-block 24 is observed to move to the same horizontal plane as the top surface of the n-shaped frame 11, the pipe crawler is activated and enters the pipe.

[0027] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A loading rack for a pipe crawler, characterized in that, It includes a pair of separate loading units that are symmetrically arranged during use. The loading unit includes: The stabilizing frame (1) includes an n-shaped frame (11), with an inverted L-shaped frame (12) at the outer end of one vertical side and a vertical plate (13) at the outer end of the other vertical side. The distance between the vertical sides of the n-shaped frame (11) and the inverted L-shaped frame (12), as well as the distance between the vertical side of the n-shaped frame (11) and the vertical plate (13), are matched with the wheel diameter of the pipe crawler. An n-shaped guard plate (14) is provided on one side of the n-shaped frame (11), an inverted L-shaped guard plate (15) is provided on one side of the inverted L-shaped frame (12), and a vertical guard plate (16) is provided on one side of the vertical plate (13). Shovel plates (19) are provided between the n-shaped frame (11) and the inverted L-shaped frame (12), as well as between the n-shaped frame (11) and the vertical plate (13). The loader (2) slides vertically into the stabilizer (1) and includes an outer handle (21). A pair of sliding plates (23) are provided on one side of the handle. A T-shaped block (24) is provided at the lower end of one side of the sliding plate (23). The long side of one T-shaped block (24) slides between the n-shaped frame (11) and the inverted L-shaped frame (12), and the long side of the other T-shaped block (24) slides between the n-shaped frame (11) and the vertical plate (13).

2. The pipeline crawler loading frame according to claim 1, characterized in that, Each loading unit’s n-type frame (11) has an inner handle (111) on each of its two vertical sides facing away from the other loading unit.

3. The pipeline crawler loading frame according to claim 1, characterized in that, A horizontal guard plate (17) is provided at the upper end of one end face of the vertical guard plate (16). The distance between the horizontal guard plate (17) and the inverted L-shaped guard plate (15), as well as the distance between the horizontal guard plate (17) and the n-shaped guard plate (14), are matched with the wheel axle of the pipe crawler.

4. The pipeline crawler loading frame according to claim 1, characterized in that, The n-shaped frame (11) is provided with n-shaped guard plates (14) on both sides. The lower ends of the two vertical sides of the n-shaped guard plate (14) are provided with notches. The inverted L-shaped frame (12) is provided with inverted L-shaped guard plates (15) on both sides. The lower ends of the vertical sides of the inverted L-shaped guard plate (15) are also provided with notches. The vertical plate (13) is provided with vertical guard plates (16) on both sides. The lower ends of the vertical guard plates (16) are also provided with notches. A wheel inlet (18) is formed in the space between the two opposite end faces of the n-shaped frame (11) and the inverted L-shaped frame (12) and below the notch of the inverted L-shaped guard plate (15) and the notch of the n-shaped guard plate (14). Another wheel inlet (18) is formed in the space between the two opposite end faces of the n-shaped frame (11) and the vertical plate (13) and below the notch of the vertical guard plate (16) and the other notch of the n-shaped guard plate (14).

5. The pipeline crawler loading frame according to claim 4, characterized in that, The shovel plate (19) is located below the wheel inlet (18).

6. The pipeline crawler loading frame according to claim 1, characterized in that, One T-shaped block (24) slides between the n-shaped guard plate (14) and the inverted L-shaped guard plate (15) with its short side sliding, and another T-shaped block (24) slides between the n-shaped guard plate (14) and the vertical guard plate (16) with its short side sliding.

7. The pipeline crawler loading frame according to claim 1, characterized in that, When the T-block (24) moves to the lowest point, its upper surface is on the same horizontal plane as the highest point of the shovel plate (19).

Citation Information

Patent Citations

  • Pipeline creeper-traveler

    CN218703053U