Eraser capable of achieving quick erasing
A blackboard erasing and fast technology, applied in the field of blackboard erasing, can solve the problems of time-consuming and laborious erasing of the blackboard, chalk dust is everywhere, and it is difficult to wipe clean, etc., and achieves the effects of low cost, simple structure, economical and practicality
Inactive Publication Date: 2018-05-11
上杭县鑫驰汽车修配厂
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0002] The blackboards used in the current primary and middle school teaching are almost all equipped with a small blackboard eraser. Wiping the blackboard is time-consuming and laborious, and it is difficult to wipe it clean. Moreover, some students leave the blackboard eraser everywhere, making chalk dust everywhere, which is very uncomfortable. Hygienic, so there is an urgent need for a quick-wiping blackboard eraser that is convenient for wiping the blackboard
Method used
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Embodiment Construction
[0011] Such as figure 1 As shown, the blackboard eraser for fast wiping of the present invention is mainly composed of a guide groove (1), a long eraser (2), a guide wheel (8), a baffle (3) and a blackboard (4), and is characterized in that a guide groove (1) is respectively installed on the upper and lower sides of the blackboard (4) , A long eraser ⑵ is embedded in the guide groove ⑴, and a baffle plate ⑶ is respectively installed on the left and right sides of the blackboard ⑷, so that the long eraser ⑵ can not slide to the outside of the blackboard ⑷.
[0012] Such as figure 2 As shown, the long strip wiper (2) mainly includes a long strip of hard board (5), the outer middle of the long strip of hard board (5) is provided with a handle (6), the inner side is provided with a soft cotton wipe (7), and each of the two ends is connected with a guide wheel (8).
[0013] Such as image 3 As shown, the main body of the guide wheel ⑻ is a circular guide cylinder ⑽, and a spring...
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The invention relates to an eraser capable of achieving quick erasing. The eraser can quickly wipe up a blackboard, and is mainly composed of guide grooves, long-strip eraser tools, guide wheels, baffles and the blackboard; the eraser is characterized in that the upper and lower edges of the blackboard are each provided with one guide groove, the long-strip eraser tools are embedded into the guidegrooves, the left and right edges of the blackboard are each provided with one baffle, and therefore the long-strip eraser tools cannot slide out of the blackboard. Each long-strip eraser tool mainlycomprises a long-strip hard plate, a handle is arranged in the middle of the outer side, a soft cotton erasing device is arranged on the inner side, and the two ends of the long-strip hard plate areeach connected with one guide wheel. The shape of the cross section of an inner cavity of each guide groove is seen in the specification, the guide wheels are embedded into the inner cavities of the guide grooves, ascending wheels are tightly attached to the upper groove walls of the guide grooves, descending wheels are tightly attached to the lower groove walls of the guide grooves, and the elasticity of springs enables the soft cotton erasing device of the long-strip eraser tool to be tightly attached to the blackboard. The handle is grabbed with the hands to move the long-strip eraser toolleft and right, and writing on the blackboard can be quickly erased; at ordinary times, the long-strip eraser tool can lean against the edges of the baffles, and writing cannot be influenced.
Description
technical field [0001] The invention relates to a teaching article, in particular to a blackboard eraser which is convenient for quickly wiping a blackboard. Background technique [0002] The blackboards used in the current primary and middle school teaching are almost all equipped with a small blackboard eraser. Wiping the blackboard is time-consuming and laborious, and it is difficult to wipe it clean. Moreover, some students leave the blackboard eraser everywhere, making chalk dust everywhere, which is very uncomfortable. Hygienic, therefore need badly a kind of blackboard eraser that is convenient to wipe the blackboard quickly. Contents of the invention [0003] The object of the present invention is to provide a fast wiping blackboard eraser, which can quickly wipe clean the blackboard. [0004] The present invention is realized through the following technical solutions: the blackboard eraser for fast wiping of the present invention is mainly composed of guide groov...
Claims
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Login to View More IPC IPC(8): B43L1/04B43L21/00B43L21/04
CPCB43L1/04B43L21/00B43L21/04
Inventor 陈树生
Owner 上杭县鑫驰汽车修配厂