A water-retaining method for a core drilling machine

A core drilling machine and core drilling technology, which is applied to measuring devices, instruments, scientific instruments, etc., can solve the problems of large beating, the cooling water is easy to get wet and dirty the operator's work clothes, and it is difficult to drill, so as to reduce the beating amplitude. Effect

Inactive Publication Date: 2016-04-06
孟钧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the thin-walled drill bit of the core drilling machine in the prior art jumps a lot when it just touches the concrete surface, it is difficult to drill in, and the splashed cooling water is easy to wet and dirty the work clothes of the operator

Method used

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  • A water-retaining method for a core drilling machine

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Embodiment Construction

[0012] like figure 1 As shown, a water retaining method for a core drilling machine provided by the present invention includes that the base of the core drilling machine is provided with a chute 2b, and an expansion bolt 5 is arranged in the chute, and the expansion bolt 5 is in clearance fit with the chute 2b. There is a connecting rod 4, and the other end of the connecting rod is connected with a semicircular sleeve 1, and the inner wall of the semicircular sleeve 1 is in clearance fit with the thin-walled drill bit 2a.

[0013] work process

[0014] During on-site inspection, the core drilling machine 2 is first installed and adjusted to the core-taking position, and then the thin-walled drill bit 2a is installed, the gap between the thin-walled drill bit 2a and the inner wall of the semicircular sleeve 1 is adjusted, and the cooling water 3 is connected. Start the motor, and the thin-walled drill moves down along the inner wall of the semicircular sleeve. When it touches ...

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Abstract

The invention relates to a core drilling machine water retaining device. The device is characterized in that a drilling machine pedestal is provided with a slide slot (2b), an expansion bolt (5) is arranged in the slide slot (2b), the expansion bolt (5) is in clearance fit with the slide slot (2b), the expansion bolt (5) is connected with a connecting rod (4), the other end of the connecting rod (4) is connected with a semi-circular sleeve (1), and the inner wall of the semi-circular sleeve (1) is in clearance fit with a thin-wall drilling head. The core drilling machine water retaining device reduces the jump amplitude to a certain extent when the thin-wall drilling head just contacts with the surface of concrete, plays a rule in guidance, and blocks splashing cooling water from wetting and staining the work clothes of an operator.

Description

technical field [0001] The invention relates to a device for testing concrete strength on site, in particular to a water-retaining and guiding method for a core drilling machine. Background technique [0002] The core drilling method is one of the commonly used methods to test the compressive strength of structural solid concrete. The core drilling method is to use a special core drilling machine to directly drill core samples from the structural concrete. After cutting, grinding and leveling in the room, the compressive strength test is carried out, and the core sample is based on the apparent quality and compressive strength of the concrete. Evaluation of structural concrete quality. When taking the core, it is first necessary to fix the core drilling machine on the concrete surface, then install the thin-walled drill bit, connect the cooling water, start the motor, and drill the thin-walled drill bit into the structural concrete to obtain core samples. At the moment whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02
Inventor 孟钧
Owner 孟钧
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