Portable field detection device used for anti-falling safety device of rack and pinion building hoist

Abstract

The invention discloses a portable field detection device used for an anti-falling safety device of a rack and pinion building hoist. The portable field detection device comprises a sensor, a data acquisition analyzer and an output device which are sequentially connected, wherein the sensor and the data acquisition analyzer are connected through a shielding data line; the sensor is a pull rope type distance sensor, the sensor is provided with a pull rope and is fixed on a guide rail bracket of the rack and pinion building hoist, and the pull rope is connected with a cage in which the anti-falling safety device is arranged. According to the portable field detection device disclosed by the invention, the pull rope type distance sensor is used as the sensor, and when the device is used, the base can be conveniently clamped on a horizontal web member angle iron of any base section of the guide rail bracket, the base is locked through a bolt, and the detect that the meshing of the rack and the pinion of a rotary encoder in the existing detection device can not be easily adjusted to be smooth is effectively avoided. The portable field detection device is suitable for the detection of the anti-falling safety device of the rack and pinion building hoist, and is also suitable for the detection of the anti-falling safety device of equipment which has the similar structure, such as an elevator, and the range of application of the device is wider.

Description

technical field [0001] The invention relates to a detection technology of an anti-fall safety device, in particular to a portable on-site detection device for a rack-and-pinion construction hoist anti-fall safety device. Background technique [0002] The anti-fall safety device of the rack-and-pinion construction elevator needs to be tested and calibrated once a year according to national standards, but there is no special detection device that can detect the anti-fall safety device at the use site. The safety device was removed and sent to the laboratory for testing, resulting in long turnaround time and inefficiencies such as downtime of construction hoists. At present, although there are articles that use the rotary encoder as the on-site detection method of the sensor, since the rotary encoder needs to be driven by the meshing transmission of the gear and the rack, it is necessary to debug the rack and pinion along the entire guide rail frame when installing the rotary e...

AI Technical Summary

Problems solved by technology

[0002] The anti-fall safety device of the rack-and-pinion construction elevator needs to be tested and calibrated once a year according to national standards, but there is no special detection device that can detect the anti-fall safety device at the use site. The safety device was removed and sent to the laboratory for testing, resulting in long turnaround time and inefficiencies such as downtime of construction elevators

At present, although there are articles that use the rotary encoder as the on-site detection method of the sensor, since the rotary encoder needs to be driven by the meshing transmission of the gear and the rack, it is necessary to debug the rack and pinion along the entire guide rail frame when installing the rotary encoder on site. The smoothness of the meshing is very inconvenient to use, so there is actually no corresponding detection device put into use, which makes it impossible to detect parameters such as the braking distance, action speed, braking deceleration, and braking force of the fall arrester at the scene of use. And these parameters are important indicators to judge whether the anti-fall safety device is qualified; therefore it is very necessary and urgent to develop a convenient, fast, accurate and efficient on-site detection device for the anti-fall safety device

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