A clamping arm double position sensor

Abstract

The invention relates to a two-position sensor for clamping arms. The two-position sensor comprises a thumb wheel, a stay wire, a reflecting plate and a photoelectric switch, wherein the stay wire winds the thumb wheel and the clamping device; the reflecting plate is arranged on an upper ring beam; the photoelectric switch corresponds to the reflecting plate; one end of the stay wire is fixedly connected with the upper ring beam and the other end of the stay wire is fixedly connected with the upper ring beam through a tension spring; and a stirring block is arranged at one side of the thumb wheel. According to the technical scheme, the two meshed clamping arms are connected in series, so that positioning of eight clamping arms can be finished only by four positioning sensing devices; each sensor is a probe, and two limit positions of the clamping arms obtain signals through one probe, so that positioning sensors are reduced and structurally simplified on the whole; positioning of two actions of four groups of clamping arms is finished by four probes, so that the occupied space is small; the equipment structure is simple; by virtue of few induction probes, the fault rate is low; and the two-position sensor adapts to a small operation space.

Description

technical field [0001] The invention belongs to the field of three-dimensional mechanical garages, and in particular relates to a two-position sensor for a clamping arm. Background technique [0002] The applicant has worked in the field of three-dimensional underground parking garages for decades, and the existing parking space motion sensors mostly use proximity switches or trigger switches. Patent application title: An automatic reset vehicle lifting device for a three-dimensional parking garage; the equipment space is small, and there are many eight clamping arms, each of which is not in place may cause huge losses; each clamping arm has two limits Therefore, each clamping arm needs a set of two sensors, so that eight sets of clamping arm positioning devices will be installed, so it is not only prone to failure but also takes up space. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a two-...

AI Technical Summary

Problems solved by technology

[0002] The applicant has worked in the field of three-dimensional underground parking garages for decades, and the existing parking space motion sensors mostly use proximity switches or trigger switches. Patent application title: An automatic reset vehicle lifting device for a three-dimensional parking garage; the equipment space is small, and there are many eight clamping arms, each of which is not in place may cause huge losses; each clamping arm has two limits location, so each clamping arm requires a set of two sensors, so that eight sets of clamping arm positioning devices are installed, so it is not only easy to fail but also takes up space

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