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Reverse flow stopping adhesive injecting head

A glue injection head and reverse flow technology, which is applied in the direction of coating, liquid coating device on the surface, etc., can solve the problems of reverse glue, glue injection head being damaged by pressure, difficult to control, etc.

Active Publication Date: 2019-09-17
SHANGHAI HORSE CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the pressure of the joint-filling mortar injected into the wall joint changes at any time and is not easy to control, when the pressure is too high, it is easy to cause the injection head to be over-pressed and damaged
In addition, after the repair glue is injected into the wall joint, it needs to maintain the pressure. Since the injection is stopped during this process, when the pressure of the repair glue in the wall joint is too high, it is very easy to reverse the glue phenomenon, and the repair glue flows back into the rubber hose

Method used

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Embodiment Construction

[0019] The present invention will be further described in detail through the accompanying drawings and specific embodiments below.

[0020] Such as figure 1 As shown, a non-reverse flow injection head of the present invention includes a base 1, an outer cylinder 2, a piston block 3, and an inner cylinder 4; the base 1 includes a fixed piece 11 and an insertion cylinder 12, and the fixed piece 11 is used to be fixed on the concrete wall, and the socket 12 is used to be inserted into the drilled hole on the concrete wall; the lower end of the outer cylinder 2 is provided with an injection tube 21, and the injection tube 21 is screwed to the The inside of the insertion cylinder 12; the piston block 3 is arranged inside the outer cylinder 2, a through hole 31 is arranged on the piston block 3, and the lower end of the inner cylinder 4 is screwed to the inside of the through hole 31 The upper end of the outer cylinder 2 is screwed with a loam cake 5, and the upper end of the inner...

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Abstract

The invention discloses a reverse flow stopping adhesive injecting head. A base and an adhesive guiding pipe assembly are included, and the adhesive guiding pipe assembly is separably fixed to the base, and internally provided with an adhesive guiding flow channel; a first retracting portion with the inner diameter decreased is arranged on the adhesive guiding flow channel; and a reverse flow stopping piece is arranged at the downstream position of the first retracting portion. The above technical scheme is adopted, when adhesive injecting is performed, repairing adhesive flows from the upstream position to the downstream position along the adhesive guiding flow channel; a piston plate of the reverse flow stopping piece can move in the adhesive guiding flow channel, and therefore the reverse flow stopping piece cannot hinder adhesive injecting, the repairing adhesive can enter the inner side of a barrel-shaped portion along an adhesive passing port in the barrel-shaped portion, and then the repairing adhesive passes through an adhesive outlet to continue to flow to the downstream position; and when the pressure intensity in a wall seam is too large, the repairing adhesive has a tendency of reverse flow, then the reverse flow stopping piece is driven to move upwards till the adhesive guiding flow channel is closed after a cap portion compresses the first retracting portion, and therefore it is prevented that the repairing adhesive reversely flows back to an adhesive injecting hose.

Description

technical field [0001] The invention relates to an anti-reverse flow glue injection head, which belongs to the technical field of concrete wall repairing process equipment. Background technique [0002] For the irregular and fine surface cracks in the concrete wall, the seam-filling mortar can be used to repair them. Seam-filling adhesives are usually made of high-performance polymer emulsion and inorganic fillers. After curing, they form a rubber-plastic blended "resin alloy" system, which has strong adhesion and high toughness. , chemical substances and carbon dioxide immersion, avoid steel corrosion and further damage to concrete structures, and improve the durability of buildings. The method of wall repair usually adopts automatic low-pressure grouting technology. Using the principle of low-pressure injection, automatic low-pressure grouting can be performed on micro-cracks in concrete, and grouting can be performed on multiple cracks at the same time. When grouting, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02
CPCB05C5/0225
Inventor 韩松戴邵雷
Owner SHANGHAI HORSE CONSTR
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