Blackboard eraser dust treatment device for mathematics

A dust treatment and blackboard erasing technology, applied in the field of mathematical tools, can solve problems such as personal injury and pollution of grinding devices, and achieve the effects of preventing shedding, convenient and efficient use, and scientific and reasonable structure.

Pending Publication Date: 2018-11-06
张再麟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a blackboard eraser dust treatment device for mathematics to solve the problem that the grind

Method used

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  • Blackboard eraser dust treatment device for mathematics
  • Blackboard eraser dust treatment device for mathematics
  • Blackboard eraser dust treatment device for mathematics

Examples

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[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0015] See Figure 1-3 In the embodiment of the present invention, a dust processing device for a blackboard eraser for mathematics includes a dust collection box 1 and a locking bolt 20. One end of the dust collection box 1 is fixed with a movable seat 7 and a fixed rod 8 is inserted in the movable seat 7. One end of the fixed rod 8 passes through the movable seat 7 and is located in the dust collection box 1, and one end of the fixed r...

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Abstract

The invention discloses a blackboard eraser dust treatment device for mathematics. The blackboard eraser dust treatment device for the mathematics comprises a dust collection box and a locking bolt, wherein a movable seat is fixed to one end of the dust collection box, a fixed rod is inserted into the movable seat, fixed buckles are installed on the fixed rod and the inner wall of the dust collection box, a stainless steel spiral spring is arranged between the two fixed buckles, a feeding inlet and a fixed plate are arranged at the top end of the dust collection box, screw hole seats are installed on the side faces of the fixed plate, studs are installed on the screw hole seats, locking heads are installed at one ends of the studs, anti-skid protrusions are evenly distributed on the side surfaces of a plastic pressing plate, a dust discharging pipe is arranged at the center of the bottom end of the dust collection box, and a threaded sealing cover is arranged at one end of the dust discharging pipe. According to the blackboard eraser dust treatment device for the mathematics, a rubber handle is manually pressed to swing two flapping plates up and down, so that the flapping of the blackboard eraser is realized, the dust collection box collects the flapping dust, and the operation is very simple and convenient.

Description

technical field [0001] The invention relates to the technical field of mathematical tools, in particular to a blackboard eraser dust processing device for mathematics. Background technique [0002] Tableware refers to non-edible tools that directly contact food during meals, utensils and utensils used to assist food distribution or food intake. At present, there are also many disposable tableware on the market, which is not good for the environment; there are also some tableware made of degradable materials. Tableware includes complete sets, including metal utensils, ceramic tableware, tea utensils, glass utensils, paper utensils, plastic utensils, and various container tools (such as bowls, saucers, cups, pots, etc.) and hand-held utensils. Utensils (such as chopsticks, knives, forks, spoons, straws, sticks, etc.) and other utensils. And the grinding device is often used in the tableware processing process, but the residue splash produced by the traditional grinding devic...

Claims

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Application Information

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IPC IPC(8): B08B7/02
CPCB08B7/02
Inventor 张再麟
Owner 张再麟
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