Temperature control instrument capable of turning on / off ventilation intelligently

Abstract

A temperature control instrument capable of turning on / off a ventilation intelligently comprises a box body, wherein a temperature controller is arranged on the outer surface of the box body; a motor and a stepless speed changer controlled by the temperature controller are arranged inside the box body; a handle is arranged on a sprocket wheel I of an input shaft of the stepless speed changer; a sprocket wheel is arranged on an output shaft of the stepless speed changer; a screw rod is fixedly arranged at the rear end of the output shaft of the stepless speed changer; a limit switch support fixed to the box body is arranged below the output shaft of the stepless speed changer; two limit switches which are arranged front and back are arranged on the limit switch support; a nut is arranged on the screw rod; a limit switch touching bar is fixedly arranged on the lower portion of the nut, wherein the limit switch touching bar is connected to the limit switch support in a sliding mode; a drive unit which is used for driving a greenhouse roller blind drive rod is connected to the sprocket wheel on the output shaft of the stepless speed changer through a chain transmission mechanism II. The temperature instrument capable of turning on / off the ventilation intelligently is convenient to use and simple in operation, the temperature controller can give an alarm automatically, so that automatic temperature control is realized, and time and labor are saved.

Description

technical field [0001] The invention relates to a greenhouse ventilating instrument, in particular to an intelligent air-closing and air-closing temperature control instrument. Background technique [0002] The ventilation and closing wind instrument is a device for ventilating and closing the greenhouse. The existing air-passing and closing-off instrument comprises a box body, a motor and a transmission are arranged in the box, and the output shaft of the transmission is connected with the transmission rod of the roller blind of the greenhouse. The motor runs through the buttons on the air-turning and closing-off instruments, and the output shaft of the transmission drives the roller blind transmission rod to rotate to realize the opening and closing of the roller blind. However, in actual operation, when the power is cut off, the instrument cannot work, so that the greenhouse cannot be turned off, and the wind can only be cut off by manually cutting the rope, which will c...

AI Technical Summary

Problems solved by technology

However, in actual operation, when the power is cut off, the instrument cannot work, so that the greenhouse cannot be turned off, and the wind can only be cut off by manually cutting the rope, which will cause unnecessary economic losses and bring inconvenience to use.

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