Automatic telescopic measuring rod

• Main Authors: ZHU TAO, ZHOU QI, ZHANG CHUNBO, GAO WEI, GAO JINFU, CHEN LIBO, LU NING, ZHANG LIMIN, YU XIAOCHUAN, WANG QINGPENG, LIU BINGLONG, LIN XIAODONG, GAO SEN, MEI XIAOYIN, GAO XIANG, LYU NING, LI CHUANSEN
• Format: Patent
• Language: English
• Published: 07.01.2015
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The utility model discloses an automatic telescopic measuring rod comprising a hollow handle, in which are disposed a storage battery and a motor. The handle is provided with a button used for controlling the switching on/off of the storage battery. The front end of the handle is provided with an electric telescopic rod, and the rear end of the handle is provided with a baffle plate in a hinged manner. The output shaft of the motor is connected with the electric telescopic rod, and the electric telescopic rod is provided with a digital display. The free end of the electric telescopic rod is provided with a displacement sensor, and the data transmission between the digital display and the displacement sensor can be realized by a transmission line. The end of the outer pipe of the electric telescopic rod is provided with a supporting rack, which is provided with two position-restricted rollers. The two position-restricted rollers are respectively disposed on two sides of an inner pipe of the electric telescopic rod, and are contacted with the inner pipe of the electric telescopic rod. The storage battery is respectively connected with the motor, the displacement sensor, and the digital display. The automatic telescopic measuring rod has advantages of concise and compact structure, low production costs, and convenient use.