Alignment structure for screeding rod, laser type balance calibration screeding rod and construction method

Abstract

The invention discloses an alignment structure for a screeding rod, a laser type balance calibration screeding rod and a construction method, and the alignment structure for the screeding rod comprises a laser passing window which is formed by penetrating through two surfaces, perpendicular to a construction wall surface, of the screeding rod; and the bidirectional scale is fixed in the laser passing window and is provided with two scale pieces which are oppositely arranged and are vertical to the construction wall surface, and the scale pieces can rotate between a horizontal angle and a vertical angle. According to the method, the parallel surface can be found out before screeding by using the minimum material plane thickness, the perpendicularity and flatness of the engineering wall surface can be greatly improved, the screeding efficiency and accuracy are improved, and the construction time and the labor cost can be greatly reduced.

Description

technical field [0001] The invention relates to an alignment structure for punching bars, a laser-type balance-calibrating punching bar and a construction method, and belongs to the technical field of architectural decoration engineering. Background technique [0002] Wall plastering refers to the surface engineering of plastering cement mortar, mixed mortar and lime mortar on the wall. The overall leveling of the pouring or masonry wall is realized by a process of finding compensation for high and low. [0003] At present, punching bars are often used to align the flatness of the wall facade during the process of wall plastering. [0004] The existing punching bar will be used with the laser line throwing instrument. The usage method is as follows: [0005] 1) Use the laser line throwing instrument and the plane punching rod to jointly detect the flatness of the wall, determine the thickness of plastering, and fix the adjusted laser throwing instrument to the wall, and re...

AI Technical Summary

Problems solved by technology

[0010] First, the existing punching bar will basically be used together with the punching bar. The punching bar needs to be fixed before the next step of construction. The fixing process needs to wait for the mortar to have a certain hardness. This process is time-consuming and affects the construction. progress and efficiency;

[0011] Second, the fixing of the punching ribs is only pasted by cement mortar, and it will be deformed due to the extrusion of the mortar during plastering and leveling, and due to the non-rebound characteristic of cement mortar, once deformed, it must be leveled again, which will cause Increase construction time and reduce construction efficiency;

[0012] Third, based on the structure of the existing punching bar and its use method, it is impossible to determine whether the punching bar is completely perpendicular to the horizontal plane formed by the laser line thrower, which will cause the punched out plane to become a natural defect

[0013] Fourth, the fixing of the punching ribs is realized by pressing construction, but when the pressing force is too large during construction, the punching ribs will be pressed too much, forming a depression lower than the laser plane, and the cement mortar cannot recover by itself after the depression is formed. At this time, the only way to remove the reinforcement bar is to repeat the construction again.

[0014] Fifth, in view of the size specifications, the existing laser line projection instrument needs to be fixed at one end of the wall, which cannot be applied to the continuous wall; and each punching bar needs to be aligned with a laser separately, and multiple punching bars are used together Sometimes it will block the laser line, and it can only be aligned one by one. In this way, multiple punching rods cannot be calibrated, and there is a large cumulative error. The actual construction pass rate is difficult to guarantee.

[0015] Sixth, the existing punching rods are all designed for skilled operators, and novices are basically incompetent, and it takes a long learning time to work independently

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