Multifunctional tunneling device

Abstract

The invention provides a multifunctional tunneling device which comprises a shield body, fixed seats and sliding rails are fixed to the inner wall of the shield body, movable seats are slidably installed on the sliding rails and located on the rear sides of the fixed seats, and at least two sets of fixed seats, at least two sets of movable seats and at least two sets of sliding rails are arranged in the circumferential direction of the shield body; a first radial telescoping mechanism capable of telescoping in the radial direction of the shield body is mounted on the fixing seat and used for tightly abutting against the outer wall of the old pipe joint on the front side after stretching; a second radial telescoping mechanism capable of telescoping in the radial direction of the shield body is installed on the moving seat and used for abutting against the outer wall of the old pipe joint on the rear side after stretching; an axial telescopic mechanism is connected between the fixed base and the movable base and used for enabling the second radial telescopic mechanism in the abutting state to drive the rear-side old pipe joint to be backwards away from the front-side old pipe joint after stretching in the front-back direction. The pipe dismounting mode is easy to operate and high in construction efficiency, the radial telescopic mechanism and the axial telescopic mechanism are integrated on the shield body, the space of a starting well is not occupied, the shield body can conduct tunneling and pipe dismounting, and multifunctional tunneling construction is achieved.

Description

technical field [0001] The invention relates to the technical field of updating underground pipelines, in particular to a multifunctional tunneling device. Background technique [0002] At present, when replacing underground pipe joints, the non-excavation pipeline renewal construction method is generally adopted. During construction, the old pipe joints are cut by the roadheader and the waste slag generated by cutting is transported out, and then the new pipe joints are pushed into the new pipe joints. Pipe joints to complete the replacement of underground pipes. But when the old pipe joint is the old pipe of the socket socket, because the steel collar at the socket end of the old pipe joint is thicker, it is extremely difficult to remove, and the construction difficulty is large. [0003] In this regard, the Chinese invention patent application with the application publication number of CN112483104A discloses a tunneling machine and construction method for pipe-eating pip...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-functional tunneling device to solve the problems of low removal efficiency of existing old pipe joints and the problem that the old pipe joint removal device occupies the working space of the starting shaft

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