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A double-nozzle whiteboard eraser

A dual-nozzle, whiteboard technology, applied in the field of machinery, can solve the problems of lack of new dual-nozzle whiteboard erasers, and achieve ideal wiping effects, cost savings, and energy saving effects

Inactive Publication Date: 2020-11-27
YULIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the improved design of the traditional whiteboard eraser has been used in daily life, the new dual-nozzle whiteboard eraser is still relatively lacking.
There are several problems in designing a new type of whiteboard eraser with dual nozzles: energy consumption, cost, structure, operability, applicable occasions, etc.

Method used

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  • A double-nozzle whiteboard eraser
  • A double-nozzle whiteboard eraser
  • A double-nozzle whiteboard eraser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Pour a cleaning solution such as 95% alcohol solution into the solution tank 4 through the water injection port 1. The solution tank 4 contains three water suction pipes 12 to provide cleaning for the single-acting plunger pump 5 and the double-acting plunger pump 9 on the left and right sides of the solution tank 4. Three water suction pipes 12 ensure that the plunger pump can absorb the cleaning solution no matter where it is. Two water pipes 6 are respectively connected to the single spray port 8 and the double spray port 10 distributed at both ends of the eraser base 7. The single spray port 8 and double spray outlet 10 are installed on 1 / 3rd place apart from wiping cotton 11 lower surfaces, so that its spray effect is better.

[0030] One-third of the solution box 4 bottom is set in the blackboard eraser base 7, and the blackboard eraser base 7 is set with wiping cotton 11, offers two holes for installing single spray port 8 and double spray port 10 respectively on ...

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PUM

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Abstract

The invention discloses a double-spray-nozzle whiteboard eraser. The double-spray-nozzle whiteboard eraser controls a single-acting plunger pump and a double-acting plunger pump separately through twotop covers, and performs portion control on a single spray opening and a double-spray opening. When the cleaning area is relatively small, only the single spray opening can be used for cleaning, namely, the left half parts of the top covers are pressed. When the cleaning area is relatively large, only the double-pray opening can be used or both spray openings can be used for spraying, namely, theright half parts of the top covers are pressed or the left and right half parts of the top covers are pressed at the same time, energy consumption and cost are saved, and simple design, good selectivity, high operation flexibility, a plurality of application occasions and more ideal wiping effect are achieved.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a double-nozzle whiteboard eraser. Background technique [0002] Blackboard is an important teaching tool in traditional teaching, and plays a pivotal role in the history of people's education development. With the development of society and economy, people not only began to pursue high-quality educational resources, but also paid more attention to their physical and mental health. In the past, people often used blackboards in production and study, but blackboards have many shortcomings, such as writing. The dust and unclean wiping affect the class effect, and the appearance of the whiteboard can solve the shortcomings caused by the traditional blackboard. Now most people choose the whiteboard for teaching and lectures. Although there is no dust, they can write on the whiteboard for a long time with a marker When using it, it will leave traces on the whiteboard, the whiteboa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L21/00
CPCB43L21/00
Inventor 李瑞瑞王战辉李航牛浩智栗帅
Owner YULIN UNIV