Automatic telescopic measuring rod

Abstract

An automatic telescopic measurement rod comprises a handle, wherein the handle is hollow, a storage battery and a motor are installed in the handle, a button for controlling on and off of the storage battery is installed on the handle, an electric telescopic rod is installed at the front end of the handle, the rear end of the handle is hinged to a baffle, an output shaft of the motor is connected with the electric telescopic rod, a digital displayer is installed on the electric telescopic rod, a displacement sensor is installed at the free end of the electric telescopic rod, the digital displayer and the displacement sensor transmit data through a transmission line, a bracket is installed at the tail end of an external pipe of the electric telescopic rod, and two limiting rollers are installed on the bracket, are located on two sides of an inner pipe of the electric telescopic rod and make contact with the inner pipe of the electric telescopic rod; the storage battery is connected with the motor, the displacement sensor and the digital displayer; the handle, the electric telescopic rod and the bracket are arranged on a base, and the base is matched with the handle and the electric telescopic rod through a supporting frame.

Description

technical field [0001] The invention relates to a measuring tool, in particular to an automatic telescopic measuring rod. Background technique [0002] The distance between the jumper of the tension tower of the ultra-high voltage transmission line and the tower body should meet the requirements of the "State Grid Corporation of Electricity Safety Work Regulations (Power Line Part)". At present, in the acceptance work of the ultra-high voltage transmission line, the jumper and the tower The electrical distance measurement of the main body generally uses the "fishing rod ranging method", that is, first use a meter ruler to measure the standard value of the electrical distance on the fishing rod, and mark it on the fishing rod, and the staff carry the fishing rod up the tower to the specified position 1. Use a fishing rod with a measured distance to measure whether the electrical distance between the jumper and the tower body meets the requirements of the regulations. The dis...

AI Technical Summary

Problems solved by technology

The disadvantage of the "fishing rod ranging method" is: the fishing rod itself has no scale, and the difference between the actual distance and the regulation requirements cannot be clearly defined when measuring the distance, which is not conducive to the refinement of the acceptance work; in addition, the operator operates the fishing rod at the working position of the pole tower When it is time to use both hands to manually extend the fishing rod, this poses a certain safety hazard to workers working at heights

Western medicine treatment is mainly based on immobilization, partial closure and taking anti-inflammatory and analgesic drugs, but these treatment methods cannot effectively control all the symptoms of acute soft tissue injury, and Western medicine anti-inflammatory and analgesic drugs have relatively large side effects, affecting other organs and organs of the body. normal functioning of the system

Although traditional Chinese medicine also has some externally applied medicines for the treatment of epidermal injuries, the medicines often have problems such as slow onset of action, strong taste, inconvenient preparation and use, ineffective effects, long use time, and unstable curative effect.

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