a scribe

Abstract

The invention belongs to the technical field of concrete crack repairing and particularly discloses a scriber. The scriber comprises a handle. The front end of the handle is divided into two ends, and a scribing pen fixing hoop and a fixed nut are sequentially arranged on each end from the front to the back. The scribing pen fixing hoops are arranged on the inner side of the handle, the fixed nuts are arranged under the handle, a line distance adjusting lead screw penetrates the place between the two fixed nuts, a location needle is arranged in the middle of the line distance adjusting lead screw, and a movable nut is arranged on two sides of each fixed nut respectively on the line distance adjusting lead screw. The scriber is reasonable in design, simple in structure, convenient to use and capable of quickly and accurately scribing out two marked lines with the crack as the center line along two sides of the crack and solves the problem that scribing is conducted along the irregular crack during concrete crack repairing.

Description

technical field [0001] The invention belongs to the technical field of concrete crack repair, and in particular relates to a liner. Background technique [0002] Plain concrete panels are affected by many complex factors during construction and operation, and cracks will inevitably form. According to the method of patent ZL200910066375.7, the repair of cracks needs to grind out grooves with a width of 5-12cm along the irregular cracks. First of all, it is necessary to mark lines at equal distances on both sides of the crack. The cracks are irregular in shape. On-site marking with a curved ruler is very slow and inefficient. There is an urgent need to develop a special liner to meet the construction requirements. Contents of the invention [0003] The purpose of the present invention is to provide a scriber that can quickly and accurately draw lines equidistantly on both sides of the crack. [0004] In order to achieve the above object, the technical scheme adopted in the...

AI Technical Summary

Problems solved by technology

[0002] Plain concrete panels are affected by many complex factors during construction and operation, and cracks will inevitably form. According to the method of patent ZL200910066375.7, the repair of cracks needs to grind out grooves with a width of 5-12 cm along the irregular cracks. First of all, it is necessary to mark lines at equal distances on both sides of the crack. The cracks are irregular in shape, and the curve ruler is used to draw the line on site. The speed is very slow and the efficiency is very low.

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