A simple jacking device

Abstract

The invention discloses a simple jacking device, which comprises a hydraulic jack, a frame, a connecting wrench, a pressure bearing shaft, a jacking spring and a clamp. The bottom of the hydraulic jack is fixed on the frame, and the hydraulic cylinder of the hydraulic jack is fixedly connected to the connecting wrench; There is a track groove on the connecting lever to ensure the longitudinal movement of the pressure bearing shaft; there is a circular track groove on the frame. Under the push of the connecting lever, the pressure bearing shaft moves along the circular track to realize the clamping, pushing and returning of the fixture; the top pressure spring can When the finale moves to the end of the stroke, push the finale to enter the return track. The invention has the advantages of simple manufacture, low cost, and convenient operation and portability. With the help of the invention, the laying of passing ground flat irons and pipes can be completed without damaging the road surface and using large machinery, and the cost is low and the operation is simple.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a simple jacking device, which can be applied to the laying of grounded flat irons and pipes in various projects. Background technique [0002] In the project, the laying of the grounding grid and the laying of the passing pipes need to be pre-buried in advance before the road construction. The grounding flat iron generally adopts -80*8, and the passing pipes generally use DN50 or DN80 steel pipes. Due to changes in design and drawings, etc., after the completion of pavement construction, it often happens that the pre-buried crossing grounding flat irons and pipes under the road are leaked or laid in the wrong place, resulting in the failure of embedded parts such as grounding flat irons and pipes. In use, it needs to be re-laid, but since the road surface has been completed, only methods such as destroying the road surface, digging, and pipe jacking can be used for construct...

AI Technical Summary

Problems solved by technology

Due to changes in design and drawings, etc., after the completion of pavement construction, it often happens that the pre-buried crossing grounding flat irons and pipes under the road are leaked or laid in the wrong place, resulting in the failure of embedded parts such as grounding flat irons and pipes. In use, it needs to be re-laid, but since the road surface has been completed, only methods such as destroying the road surface, digging, and pipe jacking can be used for construction

It is time-consuming and labor-intensive to destroy the road surface and excavate, which will bring direct economic losses and may cause irreparable damage to the road surface. Due to the complicated pipe jacking process, large-scale machinery is required and the cost is high

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