Glass-wiping device with adjustable potentiometer

Abstract

The invention provides a window cleaner with an adjustable potentiometer. The window cleaner comprises a main body, a control device and a boundary detection unit, and is characterized in that the boundary detection unit comprises an action part, a spring element, a limiting part, a connecting rod and the adjustable potentiometer; the main body is provided with a detection surface, a limiting surface and a guide hole; the guide hole is located between the detection surface and the limiting surface, and the central axis of the guide hole is vertical to the detection surface; the spring element sleeves the action part, one end of the spring element is abutted against the action part, and the other end of the spring element is abutted against the guide hole; the limiting part is arranged at the action part; the elastic force of the spring element can drive the action part to move and protrude out of the detection surface, until the limiting part is clung to the limiting surface; the adjustable potentiometer is arranged at the main body, and is connected with the control unit. The window cleaner has the beneficial effect that whether a glass boundary is reached, the depth and width of a gap are judged by detecting voltages of two ends of the adjustable potentiometer and comparing the voltages, and the safety is improved.

Description

technical field [0001] The invention relates to the field of automation, in particular to a glass-wiping device with an adjustable potentiometer. Background technique [0002] In the existing glass-wiping device, an inductive switch is used for the moving part, and a switching value is detected. When the glass-wiping device is on the glass, the action piece presses the sensor switch, which is the first state; when the glass-wiping device reaches the glass boundary and the action piece leaves the glass surface, the action piece does not trigger the sensor switch, which is the second state state. [0003] In the prior art, it is judged whether the glass-wiping device has reached the glass boundary through the on and off states of the sensor switch. Since the moving part needs to move a certain distance to trigger the sensor switch, it cannot be recognized for some shallow gaps. This allows the machine to pass through, creating an air leak, resulting in insufficient air press...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, it is judged whether the glass-wiping device has reached the glass boundary through the on and off states of the sensor switch. Since the moving part needs to move a certain distance to trigger the sensor switch, it cannot be recognized for some shallow gaps. This allows the machine to pass through, causing an air leak, resulting in insufficient air pressure and a fall hazard

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