Hand-operated plumb bob device

Abstract

The invention provides a hand-operated plumb bob device. The hand-operated plumb bob device comprises a plumb bob, wherein a measuring disc is arranged on the plumb bob; a testing rope is connected above the plumb bob; the other end of the testing rope is wound on a rotating shaft after passing through a limiter; and one end of the rotating shaft is connected with a handle. The hand-operated plumb bob device further comprises a rotating shaft locking unit used for limiting the rotation of the rotating shaft. Through the adoption of the hand-operated plumb bob device provided by the invention, problems in the prior art are solved. The hand-operated plumb bob device provided by the invention is advantaged in that the device is simply structured and convenient in operation; the device is not limited by weathers; the observation continuity of the device is high; the construction speed of a slip form is increased; the device is mounted and fixed at one time; manual operations are less; the observation accuracy of the device is improved; frequent high-altitude operations are reduced; and the observation safety of the device is enhanced.

Description

technical field [0001] The invention relates to the sliding form construction technology of high-pier bridges, in particular to a hand-operated wire hammer device used for verticality observation during the construction process of sliding formwork of high-pier bridges. Background technique [0002] In engineering construction, when the bridge site is located in a mountainous area, the pier is high, the terrain is narrow, and the access road is not smooth. At this time, the slip-form construction (slip-form construction refers to the use of jacks or motors to drive the formwork system to slide during the construction of bridge cast-in-place concrete) It is a construction method to form concrete products, which has the advantages of high degree of mechanization, fast construction speed, less site occupation, and strong structural integrity). Special attention should be paid to construction safety, and at the same time, the verticality observation of the construction bridge (ver...

AI Technical Summary

Problems solved by technology

The problem with this method is that the laser plummet method requires professional technicians to operate, and it is necessary to check the leveling and centering before each observation, and it takes a long time to rebalance and center

The problem of this method is that the process is cumbersome, the operation is inconvenient, and the continuity is poor, which affects the sliding speed. It is necessary to accurately locate the position of the lifting point of the wire hammer before the observation. The test is performed once, and the operator on the operating platform manually positions once, causing the sliding form to be shut down. The measurement problem affects the construction progress; the human error is relatively large; the position of the lifting point of the wire hammer is determined by the operator on the operating platform. With the frequent release and fixing of the lowering hammer, there are human accumulated errors; a large number of wire ropes piled up on the operating platform cause operators Safety hazards of working at heights

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