A formwork trolley pumping concrete pouring air-raid shelter alarm device

Abstract

The invention discloses a template trolley concrete pumping pouring hole prevention alarm device. A water pump motor is connected with a first alternating current contactor. The first alternating current contactor is connected with an air switch and is connected to a zero line through the air switch. A fuse is connected between the first alternating current contactor and the air switch and is connected with a first switch and an electric contact pressure gauge. The first switch is connected with a second alternating current contactor. A relay, a flywheel diode, a first resistor and a second switch are connected in parallel. The relay and the flywheel diode are connected in parallel to be connected with a first triode. The first resistor is connected with a second resistor. The first triodeis connected between the first resistor and the second resistor and is then connected with a second triode. The second triode is connected with a third resistor. The leading-out ends of the electriccontact pressure gauge, the second switch and the third resistor are sequentially connected into a cement container. The template trolley concrete pumping pouring hole prevention alarm device avoids the phenomenon that a trolley is deformed and concrete is not in place because too much concrete is poured, and a hole is finally formed.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of concrete pouring, in particular to an alarm device for concrete pouring by a formwork trolley pumping an air-raid shelter. Background technique [0002] At present, highway tunnel construction units generally use formwork trolleys to pump concrete linings, and generally use formwork trolleys to set the formwork, and the delivery pump is used to pour concrete. As a result, the consumption of materials (wood, steel formwork, fasteners, etc.) is reduced, and the labor intensity is reduced. At the same time, the concrete lining is dense, the surface is smooth, there is no wrong platform, the wrong seam is slight, it is not easy to run out of the mold, and the appearance quality is small . However, there are still common quality defects such as voids in the pumped concrete lining. [0003] At this stage, void defects in the construction of the second lining of tunnels are relatively...

AI Technical Summary

Problems solved by technology

[0003] At this stage, void defects in the construction of the second lining of tunnels are relatively common. Excessive pouring of concrete often causes trolley deformation and concrete is not in place to form voids, which brings inconvenience and major economic losses to subsequent construction, or wastes the project, and post-processing The cost increases, and repeated backfilling and grouting are required, which increases investment and has a certain impact on the construction progress

The reason is mainly due to the lack of effective early warning means to judge the fullness of the second lining of the tunnel during the construction of the second lining. Therefore, in order to solve this practical problem, there is an urgent need for a secondary lining concrete pouring to avoid voids. Technical solutions

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