A method for repairing the surface of prefabricated concrete stairs in prefabricated buildings

Abstract

The invention relates to a method for repairing and treating the surface of prefabricated concrete stairs in an assembled building. The rapid demoulding treatment method adopts the following rapid demoulding device for cement poles. The repair treatment method adopts the following prefabricated concrete staircase surface repairing device. The repair device includes bottom plate, stair support, cement pump, transmission mechanism and repair device. The transmission mechanism includes transmission slide table, transmission electric slider, lifting hydraulic cylinder and connecting block. The repair device includes tread repair mechanism, rotating pin shaft and kick surface The restoration mechanism, the rotating motor, the motor seat, the rotating rod, and the method for repairing the prefabricated staircase by using the prefabricated concrete staircase surface restoration device include the following steps: S1, preparation for restoration; S2, positioning for restoration; S3, restoration of the staircase. The invention can solve the problems of low work efficiency and easy injury to workers' bodies when repairing prefabricated stairs manually at the current stage.

Description

technical field [0001] The invention relates to the technical field of prefabricated buildings, in particular to a method for repairing and treating the surface of prefabricated concrete stairs in an assembled building. Background technique [0002] In the current traditional building construction process, most of the construction of the stairs is cast-in-place structure. The traditional cast-in-place staircase structure is difficult to form on site, the quality of the construction joints is not easy to control, and the amount of labor and wood consumption is large. With the construction industry The continuous innovation and development of the market, the continuous increase in the price of labor force in the market, and the increase in construction costs caused by it, the construction industry must gradually develop in the direction of industrialization and factoryization. As the prefabricated construction technology becomes more and more mature and perfect, The constructi...

AI Technical Summary

Problems solved by technology

[0002] In the current traditional building construction process, most of the construction of the stairs is cast-in-place structure. The traditional cast-in-place staircase structure is difficult to form on site, the quality of the construction joints is not easy to control, and the amount of labor and wood consumption is large. With the construction industry The continuous innovation and development of the market, the continuous increase in the price of labor force in the market, and the increase in construction costs caused by it, the construction industry must gradually develop in the direction of industrialization and factoryization. As the prefabricated construction technology becomes more and more mature and perfect, The construction industry will use more and more prefabricated models. As an indispensable part of the prefabricated structure, prefabricated stairs will be widely promoted and applied

[0003] However, in the production of prefabricated concrete stairs at the present stage, due to the problems of the production process, many small sunken holes often appear on the surface of the stairs. Stepping on it, the small potholes on the surface are easy to gradually turn into larger potholes, which will affect the use effect of the stairs and reduce the service life of the stairs. After noticing this problem, some manufacturers often use manual cleaning of the stairs and The sunken potholes of the tread are repaired. The problems of this method are as follows:

[0004] 1. When repairing manually, it is often manually standing on the stairs, holding a roller brush in one hand and a cement slurry bucket in the other hand, and then brushing the surface of the stairs step by step, which consumes a lot of manpower and is inefficient;

[0005] 2. When manually painting the surface of the stairs, the workers need to bend over when repairing and painting each step. After working for a long time, it will cause great damage to the workers' knees

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