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Device and method for repairing tiny cracks in in-service concrete pole through grouting

A repair method and concrete technology, which can be used in building maintenance, building types, buildings, etc., can solve the problems of large size of water stop needle and unsuitable grouting, and achieve the effect of increasing pressure, simple structure and quick operation.

Active Publication Date: 2014-02-19
STATE GRID CORP OF CHINA +1
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  • Description
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AI Technical Summary

Problems solved by technology

However, for the repair of small cracks in reinforced concrete poles in service, the size of the existing water stop needles is too large, which is not suitable for grouting operations

Method used

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  • Device and method for repairing tiny cracks in in-service concrete pole through grouting

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, a kind of equipment for grouting repair of small cracks in concrete electric poles in service includes a manual high-pressure grouting pump and a water stop needle 4, and the manual high-pressure grouting pump includes a manual hydraulic device, a pressure gauge 3, a charging cylinder 2 and a grouting pipe 8. The water stop needle 4 includes the injection nozzle 5, the extension pipe 6 and the needle point 7, wherein the manual hydraulic device is fixed on the upper end of the charging cylinder 2, the inlet of the grouting pipe 8 is connected to the outlet of the manual hydraulic device, and the pressure gauge 3 is fixed on the grouting At the entrance of the pipe 8, the outlet of the grouting pipe 8 is connected to the injection nozzle 5 of the water stop needle, the injection nozzle 5 is connected to the extension pip...

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Abstract

The invention discloses a device and method for repairing tiny cracks in an in-service concrete pole through grouting. The device comprises a hand-operated high-pressure grouting pump and a water stopping needle head. The hand-operated high-pressure grouting pump comprises a hand-operated hydraulic device, a pressure gauge, a material filling barrel and a grouting pipe. The water stopping needle head comprises an injection nozzle, an extending pipe and a needle tip. The hand-operated hydraulic device is fixed to the upper end of the material filling barrel, the inlet of the grouting pipe is connected with the outlet of the hand-operated hydraulic device, the pressure gauge is fixed to the inlet of the grouting pipe, the outlet of the grouting pipe is connected with the injection nozzle of the water stopping needle head, the injection nozzle is connected with the extending pipe, and the extending pipe is connected with the needle tip. The method and the device solve the problem of repairing the tiny cracks in the in-service concrete pole and overcome the limitation of an existing repairing method, and the method is simple and high in operability.

Description

technical field [0001] The invention relates to the technical field of repairing tiny cracks in reinforced concrete poles of in-service power transmission lines, in particular to a device and method for grouting and repairing micro-cracks in in-service concrete poles. Background technique [0002] The appearance of tiny cracks will adversely affect the safety and durability of reinforced concrete poles in service. At present, there are many repair methods for larger cracks, and for small cracks, the method of applying repair glue on the surface is often adopted, and most of them are manual operations, so it is difficult to guarantee the injection depth and uniformity of the repair glue, and it is difficult to reach deep layers. purpose of repair. [0003] The existing water stop needles are usually used for the repair of general concrete structures or thin concrete structures, and are equipped with a check valve to prevent the grout from spraying backwards. However, for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04H12/12
Inventor 邓化凌严黔李正立赵然杭申睿王兴菊任春凤徐月华魏泽彪官庆朔赵睿薛霞
Owner STATE GRID CORP OF CHINA
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