Local excavation protection device for pipeline repair

Abstract

The invention discloses a local excavation protection device for pipeline repair, and relates to the technical field of auxiliary equipment related to pipeline repair. The device comprises protection plates, a front plate arranged on the lower portions of the front sides of the protection plates and a rear plate arranged on the lower portions of the rear sides of the protection plates, anti-falling plates are arranged on the opposite side walls of the two protection plates, adjusting plates are fixed to the front ends and the rear ends of the protection plates, and adjusting supporting plates are arranged on the right lower sides of the anti-falling plates. Moving openings are formed in the positions, corresponding to the anti-falling plates, of the upper ends of the adjusting supporting plates in a penetrating mode, overturning blades are fixed to the rotating shaft ends of the first motors, and threaded rods are arranged on the left portion and the right portion over the rear plate. According to the device, the anti-falling plate moves or is limited on the adjusting supporting plate, so that the side wall of a ground digging opening is limited and supported, collapse is avoided, the working efficiency is improved, meanwhile, stacked soil is paved through the overturning blades, interference to device adjustment is avoided, and adjustment can be conducted according to the area to be excavated by workers through rotary movement of the threaded rod.

Description

technical field [0001] The invention belongs to the technical field of auxiliary equipment related to pipeline repair, in particular to a local excavation protection device for pipeline repair. Background technique [0002] Pipeline repair refers to the use of various techniques to restore the damaged and leaking pipelines to normal use. The repair includes two technologies: external anti-corrosion layer repair and internal repair. The corresponding technology can accurately find the location of the pipeline damage, so it is necessary to excavate the pipeline locally. At the same time, in order to ensure the safety and stability of the local excavation, it is necessary to use the excavation protection device, but it is used in practice. There are still the following disadvantages: [0003] 1. When partial excavation is performed for pipeline repair, collapse will occur on both sides of the excavated ground, resulting in the need to re-excavate and reduce work efficiency; ...

AI Technical Summary

Problems solved by technology

[0003] 1. Now when partial excavation is carried out for pipeline repair, both sides of the excavated ground will collapse, resulting in the need to re-excavate and reduce work efficiency;

[0004] 2. For the local excavation of the ground for pipeline repair, the excavated soil will be piled up around the device. This method will cause the soil around the device to be too high, which will affect the normal adjustment of the device;

[0005] 3. When the existing pipeline repair protection device is in use, it cannot be adjusted according to the area to be excavated by the staff, so it cannot achieve effective protection

[0006] Therefore, the existing partial excavation protection devices for pipeline repair cannot meet the needs in actual use, so there is an urgent need for improved technology on the market to solve the above problems

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