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Portable accurate grinding and sampling device for concrete surface layer

A kind of sampling equipment and concrete technology, applied in the direction of sampling devices, etc., can solve the problems of inability to accurately control the demand for sampling volume, heavy equipment, etc., and achieve the effect of novel structural design, convenient and fast processing, and large contact area

Pending Publication Date: 2019-12-17
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems in the prior art that the equipment is bulky and cannot accurately control the demand for sampling volume, the purpose of the present invention is to provide a portable concrete surface precise grinding sampling equipment

Method used

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  • Portable accurate grinding and sampling device for concrete surface layer
  • Portable accurate grinding and sampling device for concrete surface layer
  • Portable accurate grinding and sampling device for concrete surface layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figure 1 to Figure 5 As shown, a portable concrete surface precision grinding powder sampling equipment, including sampling mechanism, precise adjustment mechanism and collection mechanism,

[0041] The sampling mechanism is provided with a grinding head and an electric drill body in sequence from front to back. The electric drill body includes a drill bit and a drill bit mounting seat. The grinding head and the drill bit are connected as an integrated structure. The drill bit is connected to the motor shaft through the drill bit mounting seat. , the grinding head is mounted on the free end of the drill bit;

[0042] The precise adjustment mechanism includes a threaded cylinder and a fixed ruler. The threaded cylinder is arranged on the outer side of the drill bit mounting seat. The inner wall of the fixed ruler is provided with an internal thread that matches the threaded cylinder. The threaded cylinder and the fixed ruler are both set as cylindrical cylinders S...

Embodiment 2

[0050] On the basis of Example 1, different from Example 1, such as Image 6 and Figure 7 As shown, the grinding head is set as a hollow diamond grinding head, and the hollow diamond grinding head is a detachable grinding head. The center of the grinding head is provided with a hollow hole I. More specifically: the center position of the grinding head passes through the dumbbell-shaped grinding head. Two symmetrical arc-shaped hollow holes I are formed at intervals between the stones. The center of the dumbbell-shaped grinding stone protrudes outwards and is provided with a tapered tip. There is a circle of hollow holes II on the outer edge of the inner ring grinding teeth. The center of the stone protrudes outwards and is provided with a conical tip. The hollow diamond grinding head is set as a structure formed by concentric arrangement of the inner ring grinding teeth and the outer ring grinding teeth. The radius of the outer ring grinding teeth is 20-30mm ; The hollow hol...

Embodiment 3

[0054] On the basis of Example 1, different from Example 1, such as Figure 4 As shown, the grinding head is set as a detachable structure, and the grinding head is removed from the end of the equipment for drilling.

[0055] A portable drilling device comprising a drilling mechanism, a precise adjustment mechanism and a collecting mechanism,

[0056] The drilling mechanism is provided with an electric drill body and a handle in sequence from front to back. The electric drill body includes a drill bit and a drill bit mounting seat. The drill bit is connected to the motor shaft through the drill bit mounting seat. .

[0057] The precise adjustment mechanism includes a threaded cylinder and a fixed ruler. The threaded cylinder is arranged on the outer side of the drill bit mounting seat. The inner wall of the fixed ruler is provided with an internal thread that matches the threaded cylinder. The threaded cylinder and the fixed ruler are both set as cylindrical cylinders Struct...

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Abstract

The invention discloses a portable accurate grinding and sampling device for a concrete surface layer, and belongs to the field of concrete durability monitoring. A sampling mechanism is sequentiallyprovided with a grinding head and a drill bit from front to back, the grinding head and the drill bit are connected into an integrated structure, and the drill bit is connected with a motor rotating shaft through a drill bit mounting seat; a threaded cylinder of an accurate adjusting mechanism is arranged in the outer side of the drill bit mounting base, internal threads matching the threaded cylinder is arranged on the inner wall of a fixed ruler, and the fixed ruler and the threaded cylinder rotate relatively to adjust the relative depth of the grinding head embedded into a sampling layer; and the two ends of a sliding rail of a collecting mechanism are fixedly connected with the drill bit mounting base, and a powder collecting groove is movably arranged on the sliding rail in a sleevingmode to cover the grinding head. The problems that an existing concrete powder sampling device is inconvenient to carry, complex in sampling process operation, and incapable of accurately controllingsampling demand, dust pollution in the sampling process are solved, and the device of the invention is characterized by accurate sampling, simple operation and portability. the device can be used foroutdoor in-situ sampling as well as indoor sampling.

Description

technical field [0001] The invention belongs to the technical field of concrete sampling equipment, and in particular relates to a portable concrete surface layer precision grinding sampling equipment. Background technique [0002] Since concrete is a porous, hydrophilic material, it is easily permeated by moisture. Harmful substances in the external environment, such as chloride ions, sulfates, and carbon dioxide, enter the interior of the concrete through water as the medium. Harmful substances in the external environment or changing the microenvironment inside the concrete affect the passivation film of the steel bar, or directly accelerate the corrosion of the steel bar, resulting in a decrease in the durability of the concrete, and the service life cannot reach the designed service life. At present, building structures at home and abroad are facing serious durability problems, resulting in huge economic losses. Since the end of the 1970s, many existing infrastructures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08G01N1/20
CPCG01N1/08G01N1/20
Inventor 田玉鹏张鹏鲍玖文戴雨晴王文涛
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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