Wiping mechanism for clean type leveling device with rotating speed early warning function

Abstract

The invention discloses a wiping mechanism for a clean type leveling device with a rotating speed early warning function. A rotating speed relay is arranged on an output shaft of a driving motor, therotating speed relay is provided with a normally open contact, one end of the normally open contact is connected to the positive electrode of a buzzer battery, the other end of the normally open contact is connected to the positive electrode of a buzzer, and the negative electrode of the buzzer is connected with the negative electrode of the buzzer battery; the buzzer is arranged on a shell of thedriving motor; the external thread opening is formed in the outer cylindrical surface of one end of the sleeve with two through ends; the external thread opening is used for being connected with an output shaft of the driving motor; the positioning opening is formed in the end wall of the other end of the sleeve with the two through ends, and the positioning opening is used for being connected with a main shaft. The sleeve with the two through ends is of a cylindrical structure. In combination with other structures, the defects that in the prior art, a shaft connector is prone to loosening and infirm due to sleeving, and equipment for early warning and prompting the rotating speed of the driving motor does not exist are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of water meters, in particular to a wiping mechanism for a clean horizontal device with a speed warning. Background technique [0002] Water meters mostly measure the cumulative flow of water, and are generally divided into volumetric water meters and velocity water meters. They originated in the UK and have a history of nearly 200 years. Usually, the water meter needs to be read manually. When reading the meter, the meter cover needs to be opened. Sometimes there is fog or dirt on the glass surface of the meter. Meter reading personnel also do not have special utensils to wipe the glass surface of the meter, which will cause the possibility of misreading. Therefore, a self-cleaning water meter with the application number "201721801751.9", the application date "2017.12.21" and the patent name "self-cleaning water meter" was given; One side of the glass surface of the glass surface is provided with a vertic...

AI Technical Summary

Problems solved by technology

[0003] One side of the main shaft is provided with a drive motor structure: the main shaft is a cylindrical structure, the output shaft of the drive motor is also a cylindrical structure, and one end of the main shaft is connected to one end of the output shaft of the drive motor through a shaft Connectors, and the connection method of the shaft connector often adopts the socket method. In this way, when the drive motor runs for a long time, it is prone to loose and unreliable problems due to its not tight socket.

[0004] In addition, the speed of the drive motor should not be too high, usually not higher than 12 rpm, otherwise it will easily wear the contact part between the wiper and the glass surface, but there is no device for early warning of the speed of the drive motor.

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