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Hand guard blackboard eraser used for teaching

A technology of blackboard eraser and hand guard, which is applied in the field of teaching equipment, can solve the problems of affecting writing clarity and high strength, and achieve the effect of improving user experience, reducing use cost, and good practicability

Inactive Publication Date: 2018-05-25
广安市前锋区代市镇长五小学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it takes a lot of effort to wipe the blackboard, and white scratches will be left on the parts that are not wiped thoroughly, which will affect the clarity of the next writing

Method used

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  • Hand guard blackboard eraser used for teaching
  • Hand guard blackboard eraser used for teaching

Examples

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Embodiment Construction

[0012] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, a blackboard eraser provided by the present invention includes a blackboard eraser body 1, on which a bristle 2 is arranged, the shape and size of the blackboard eraser body 1 are not limited, and the material of the bristle 2 is also not limited. .

[0014] Also includes a handle 3, the handle 3 includes a hand-held end 4 and a sliding end 5, the blackboard eraser body 1 is provided with a blind hole 6, the sliding end 5 is located in the blind hole 6, and the sliding end 5 is set There is a slider 7 matching the blind hole 6, and an elastic member 8 is arranged between the slider 7 and the blind hole 6, and the elastic member 8 can be a spring or an elastic ring. The hand-held end 4 is located outside the blind hole 6, and the opening of the blind hole 6 is provided with an end cap 9, which can ensure th...

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PUM

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Abstract

The invention relates to the technical field of teaching appliances, in particular to a hand guard blackboard eraser used for teaching. The hand guard blackboard eraser comprises a blackboard eraser body. The blackboard eraser body is provided with brush bristles. The hand guard blackboard eraser further comprises a handle, and the handle comprises a handheld end and a sliding end. The blackboarderaser body is provided with a blind hole, and the sliding end is located in the blind hole and is further provided with a sliding block matched with the blind hole. An elastic part is arranged between the sliding block and the blind hole. The handheld part is located outside the blind hole. An end cover is arranged at the opening position of the blind hole. The handheld end is provided with a hand guard sleeve, and a heating device is arranged inside the hand guard sleeve. The hand guard blackboard eraser used for teaching is simple in structure, capable of reducing use cost, easy to popularize and good in practicability. Writing on a blackboard can be erased cleanly and rapidly, time and labor are saved and the practicability is quite good. Due to arrangement of the heating device, the handle can be heated when the air temperature is low, hands cannot be frosted easily, and user experience is greatly improved.

Description

technical field [0001] The invention relates to the technical field of teaching appliances, in particular to a hand guard blackboard eraser for teaching. Background technique [0002] The teaching tools used at home and abroad are still based on traditional blackboard chalk at present. When in use, hold the blackboard eraser with your hand and move back and forth after touching the blackboard, thereby erasing the words on the blackboard. However, it takes a lot of effort to wipe the blackboard, and white scratches will be left in places where the cleaning is not thorough, which will affect the clarity of the next writing. Contents of the invention [0003] The object of the present invention is to provide a hand guard blackboard eraser for teaching with simple structure and convenient use. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a blackboard eraser for teaching, comprising a blackboard eraser body, the bl...

Claims

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Application Information

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IPC IPC(8): B43L21/00B43L21/04
CPCB43L21/00B43L21/04
Inventor 王涛
Owner 广安市前锋区代市镇长五小学校
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