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Rapid circle drawing device for three-centered arch section

A three-centered arch and cross-section technology, applied in the field of drawing equipment, can solve problems such as easy slipping of steel bars and affecting the effect of drawing circles

Pending Publication Date: 2022-06-24
HUAIBEI MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a device for quickly drawing a circle on the section of a three-core arch, which aims to solve the problem that when the placing surface is too smooth, the steel bar is easy to slip during the rotation, thereby affecting the effect of drawing a circle

Method used

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  • Rapid circle drawing device for three-centered arch section
  • Rapid circle drawing device for three-centered arch section
  • Rapid circle drawing device for three-centered arch section

Examples

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Embodiment Construction

[0018] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0019] see Figure 1 to Figure 4 , The present invention provides a rapid circle drawing device for a three-core arch section, which includes a positioning mechanism 1 and a steel bar main body 2 .

[0020] The positioning mechanism 1 includes a positioning frame 3, an insertion tip 4, a driving assembly 6, a sliding block 7 and a suction assembly 8. The positioning frame 3 has an exhaust port 9 and a chute 5. The insertion tip 4 is connected to the The positioning frame 3 is fixedly co...

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Abstract

The rapid circle drawing device comprises a positioning mechanism and a steel bar body, the positioning mechanism comprises a positioning frame, an insertion tip, a driving assembly, a sliding block and an air suction assembly, the positioning frame is provided with a sliding groove, and the sliding block is driven by the driving assembly to slide in the sliding groove on the side close to the insertion tip; the sliding block drives the air suction assembly to slide out of the positioning frame until the sliding-out height of the air suction assembly is higher than the height of the insertion tip, the air suction assembly is placed on a designated point on the placing face, the positioning frame is supported by the air suction assembly, and the air suction assembly is used for sucking air between the air suction assembly and the placing face to generate negative pressure; the effect of fixing the positioning frame is achieved, and the problem that when the placing face is too smooth, the steel bars are prone to slipping in the rotating process, and therefore the circle drawing effect is affected is solved.

Description

technical field [0001] The invention relates to the technical field of drawing tools, in particular to a device for quickly drawing circles on a three-center arch section. Background technique [0002] The mining construction area adopts the integrated construction of excavation, drilling and transportation. In order to ensure that the roadway space can meet the construction requirements, it is necessary to design the roadway section as a three-core arch. In the design process of the roadway, the traditional way to draw a circle from top to bottom is to measure a point at a distance of 300mm. Not only does it take a long time to draw a circle, but also the measurement data of each person is inconsistent, resulting in poor roadway formation, and the two shoulder sockets are not on the line. Therefore, it is necessary to draw a circle by drawing a circle. The device draws a circle. The existing circle-drawing device consists of folded steel bars to accommodate the needs of ci...

Claims

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Application Information

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IPC IPC(8): B43L12/00B43L9/00
CPCB43L12/00B43L9/00
Inventor 赵雷耿洪冬王德龙邢应保
Owner HUAIBEI MINING IND
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