An adjustable timed spraying device

Abstract

The invention relates to an adjustable timing spraying device. The problems that a prefabricated beam is inconvenient to maintain, tedious in operation and cannot be closed at regular time are effectively solved. The adjustable timing spraying device comprises a water supply system, a pipeline, spray heads and a timing valve, wherein the timing valve comprises a ball valve shell and a box body, arotating shaft is arranged on the shell, an impeller and a driving wheel are arranged on the rotating shaft, the rotating shaft and the driving wheel can be overloaded, a driven wheel is arranged on the valve rod, a torsion spring is arranged between the driven wheel and the valve rod, two radial shifting rods are arranged on the outer edge surface of the valve rod, four vertical rods capable of moving up and down are uniformly distributed on the upper circumference of a baffle in the box body, the vertical rods move downwards, the shifting rods can be blocked, a wedge-shaped block and a sleeve which can move left and right and are reset leftwards are arranged in the box body, the sleeve moves leftwards to push the wedge-shaped block to move leftwards, and the wedge-shaped block moves leftand right, and the valve can be rotated by 90 degrees each time; and a first pin for clamping the sleeve and a mechanical timing device for controlling the first pin are arranged on the box body. Theadjustable timing spraying device can be closed in a timing mode, water can be saved, and the water can be fully sprayed.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to an adjustable timing spraying device. Background technique [0002] The current prefabricated beam maintenance process is divided into four stages: static stop period, heating period, constant temperature period, and cooling period. The temperature in the constant temperature stage is controlled at about 45-50°C, and the constant temperature time is controlled at about 10 hours. The main stage of development, but the existing curing device always has a constant temperature control temperature higher or lower in the control, which is extremely unfavorable to concrete curing. As a result, the strength of concrete develops too fast, and the strength of concrete does not develop or even decreases in the later stage, or the temperature of concrete rises too fast, and temperature cracks appear on the surface to varying degrees inside the concrete, which is extremely unfavorable to th...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide an adjustable timing spraying device, which can effectively solve the problems of inconvenient maintenance of prefabricated beams, cumbersome operation and failure to automatically close

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