Universal meter for elevator maintenance

Abstract

The invention relates to a universal meter for elevator maintenance, which comprises a main body, a display screen, two meter pens and two detection lines, and further comprises a protection mechanismand a dust removal mechanism. The protection mechanism comprises a fixed box, a driving plate, a transmission assembly, two connecting assemblies and two cleaning assemblies, and each connecting assembly comprises a connecting block, a rubber block and a rubber ring. The cleaning assembly comprises a cleaning ring and two limiting assemblies, the transmission assembly comprises a driving rod, a supporting rod and two transmission units, and the dust removal mechanism comprises a connecting box, a supporting block, an air cylinder, an air inlet pipe, two power assemblies, two air outlet pipesand a plurality of elastic ropes. Through the protection mechanism, the universal meter for elevator maintenance achieves the function of protecting the meter pen, so that the damage probability of the meter pen is reduced, the safety of equipment is improved, the detection work is not influenced, the function of removing dust from the display screen is achieved through the dust removal mechanism,and the situation that the display effect of the display screen is influenced due to the fact that dust adheres to the display screen is avoided.

Description

technical field [0001] The invention relates to the field of elevator manufacturing and maintenance, in particular to a multimeter used for elevator maintenance. Background technique [0002] During elevator maintenance, the staff can use a multimeter to detect whether the electrical equipment of the elevator is faulty. The multimeter is also called a multimeter, a multimeter, and a multimeter. It is a multi-functional and multi-range measurement. Instruments, general multimeters can measure DC current, DC voltage, AC voltage, resistance and audio level, etc., and some can also measure AC current, capacitance, inductance and some parameters of semiconductors (such as β). [0003] When the test leads of the existing multimeter are stored, they are usually directly wound on the multimeter, and are usually directly exposed, which increases the probability of damage to the test leads and thus affects the detection work. Not only that, but the display screen of the existing multi...

AI Technical Summary

Problems solved by technology

[0003] When the test leads of the existing multimeter are stored, they are usually directly wound on the multimeter, and are usually directly exposed, which increases the probability of damage to the test leads and thus affects the detection work. Not only that, but the display screen of the existing multimeter It is also exposed outside, thereby increasing the probability of dust adhering to the display screen, thereby easily affecting the display effect, making it difficult for the user to observe the display value of the display screen, thereby reducing the practicability of the existing multimeter

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