Detachable blackboard eraser dust extraction device

A technology of dust removal device and blackboard brush, applied in cleaning methods and utensils, cleaning methods using tools, chemical instruments and methods, etc., can solve the problems of high cost, unsuitable for large-scale promotion and use of schools, and achieve the effect of not being easy to fly

Inactive Publication Date: 2013-06-05
SHANGHAI XINZHONG HIGH SCHOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the design cost is relatively high, and it is n

Method used

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  • Detachable blackboard eraser dust extraction device

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Embodiment Construction

[0008] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0009] Such as figure 1 As shown, a detachable blackboard brush dust removal device includes a dust removal box 1, a hook 2, a dust removal sawtooth 3, a closing mechanism 4 and a baffle 5, the hook 2 is integrally formed with the rear side of the dust removal box 1, and the dust removal The upper end of the box 1 is open and closed by the closing mechanism 4. The dust removal saw teeth 3 are arranged on one side of the outer edge of the opening of the dust removal box 1, and the baffles 5 are respectively riveted on the upper ends of the left and right sides of the dust removal box 1, and turned up vertically. Afterwards, a semi-closed cavity is formed with the closing mechanism 4 and the dust removal box 1, and the extractable powder container (6) is located in the dust removal box 1, ...

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Abstract

The invention provides a detachable blackboard eraser dust extraction device which comprises a dust extraction box, a hook, dust extraction sawteeth, a closing mechanism and a baffle. The hook and the rear side of the dust extraction box are integrally formed. An opening is formed at the upper end of the dust extraction box and is closed through the closing mechanism. The dust extraction sawteeth are arranged on one side of the outer side edge of the opening of the dust extraction box. The baffle is connected with the upper ends of the left side and the right side of the dust extraction box in a riveting mode. After the baffle is vertically turned up, the baffle, the closing mechanism and the dust extraction box form a cavity body with a half closed. A dust containing box being capable of being drawn out is located inside the dust extraction box and is outwards drawn through a handle fixed on the dust containing box. According to the detachable blackboard eraser dust extraction device, dust on a blackboard eraser can be conveniently scraped, the dust is not prone to fly upward, and the detachable blackboard eraser dust extraction device is economical and practical.

Description

technical field [0001] The invention relates to a detachable blackboard brush dust removal device. Background technique [0002] The present blackboard brushes are simple in structure, and a lot of dust will be left on them after use. Generally, the dust is scraped off in the chalk groove under the blackboard, but it is easy to cause the dust to fly everywhere and pollute the air. CN101734062A discloses a dust-absorbing blackboard eraser, which includes a blackboard eraser body, a dust absorption box and a blackboard eraser brush. A small vacuum cleaner and a silencer are installed on the blackboard eraser body, and a small circular hole is arranged on the dust absorption box. Reduce the flying of dust with a small vacuum cleaner. However, the cost of this design is relatively high, and it is not suitable for large-scale promotion and use in schools. Contents of the invention [0003] The object of the present invention is to provide a detachable blackboard brush dust re...

Claims

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Application Information

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IPC IPC(8): B08B1/00
Inventor 林莉
Owner SHANGHAI XINZHONG HIGH SCHOOL
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