An attendance device and method of use
A technology for attendance and cleaning devices, which is applied in the directions of cleaning methods using tools, cleaning methods and utensils, chemical instruments and methods, etc., can solve problems such as unfavorable student safety, fingerprint screen pollution, hidden safety hazards, etc., to ensure life safety and firmness. The effect of fixing and reducing labor intensity
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[0040] see Figure 1-10 , an attendance device and a method of use thereof, comprising a punching device 1, a cleaning device 2 and a mounting device 3, the cleaning device 2 is fixedly installed inside the punching device 1, and the mounting device 3 is fixedly mounted on the back of the punching device 1.
[0041] The cleaning device 2 includes a housing 21, a spring 22 is fixedly installed on the bottom of the inner wall of the housing 21, a cover plate 23 is fixedly installed on the end of the spring 22 away from the housing 21, a rubber rope 24 is fixedly installed on the back of the cover plate 23, and the top of the cover plate 23 is fixed. A No. 1 latch 25 is installed, and a No. 1 spring bar 26 is fixedly installed on both sides of the inner wall top of the housing 21. The inside of the No. 1 spring bar 26 is provided with a through hole 27, and a No. 1 gear 28 is fixedly installed on the right side of the through hole 27. The front of gear 28 is fixedly installed wit...
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