Cylindrical squeezing and expanding device for civil engineering

Abstract

The invention discloses a cylindrical squeezing and expanding device for civil engineering, and belongs to the technical field of civil engineering. A cylindrical extruding and expanding device for civil engineering comprises a movable seat, extruding and expanding plates are fixedly arranged between the outer side ends of multiple telescopic rods, two guide columns are fixedly arranged in the middle of the top face of a rotary disc in a front-back symmetrical structure, an extruding block is arranged above the rotary disc, and guide grooves are formed in the positions, opposite to the guide columns, of the extruding block; a threaded rod is fixedly arranged in the middle of the top face of the inner side of the box body, a threaded hole is formed in the position, opposite to the threaded rod, of the middle of the extrusion block, a motor is fixedly arranged at the right end of the inner side of the box body, the output end of the motor is coaxially and fixedly connected with a gear, and a plurality of tooth columns are annularly and fixedly arranged at the position, opposite to the gear, of the edge of the top face of the rotating disc at equal intervals. According to the device, the burden of the reaming column is reduced, the phenomenon that the squeezing and expanding difficulty is increased due to hard squeezing with a soil layer can be avoided, the squeezing and expanding work is smoother, and the service life of the device can be prolonged.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a cylindrical expander for civil engineering. Background technique [0002] In the process of civil engineering construction, sometimes due to the negligence of construction or the temporary modification of the installed facilities, the original drilling hole will not fit. In order to solve this problem, it is necessary to expand the original drilling hole. The expansion operation is a construction technique in which an expander is implanted into the soil with a small aperture, and then the hole reaches the designed aperture through the expansion action of the expander. [0003] After searching, the patent with the publication number CN112554174A discloses a cylindrical expander for civil engineering. By setting the outer cylinder component, the extrusion and expansion component can be assisted to insert into the original hole, and a suitable hole can be expanded outsid...

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Problems solved by technology

In addition, the use process of the existing device is relatively complicated. It is necessary to insert the whole body into the original hole and then take out the outer cylinder for extrusion and expansion. After extrusion and expansion, it is necessary to reconnect the extrusion and expansion assembly with the outer cylinder assembly. The operation steps are complicated, which is not conducive to extrusion and expansion. The rapid progress of the work, in view of this, we propose a tubular extruder for civil engineering

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