Blackboard cleaning wonderful tool
A technology for erasing blackboards and artifacts, applied in the field of artifact erasing blackboards, can solve the problems of chalk dust everywhere, time-consuming and laborious cleaning of the blackboard, and difficulty in cleaning, etc., and achieves the effects of simple structure, low cost, and economical and practicality.
Inactive Publication Date: 2018-05-11
上杭县鑫驰汽车修配厂
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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 an artifact that is easy to wipe the blackboard
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] Such as figure 1 , figure 2 As shown, the blackboard wiping artifact of the present invention is mainly composed of guide groove ⑴, blackboard ⑵, electric eraser ⑶, straight wire ⑷, side wire groove ⑸, winding wheel ⑹, commutator ⑺, motor ⑻, switch ⑼, reverse wire ⑽, The fixed pulley ⑾ and the wire plug ⑿ are characterized in that a guide groove ⑴ is installed on the upper and lower sides of the blackboard ⑵, an electric eraser ⑶ is embedded in the guide groove ⑴, and a side wire groove ⑸ is installed on the left and right sides of the blackboard ⑵. The electric wiping board ⑶ mainly includes a long hard board ⒀, the inner side of the long hard board ⒀ is equipped with a soft cotton wiper ⒁, and each of the two ends is connected with a guide wheel ⒂. The guide groove ⑴ and the side wire groove ⑸ form a rectangle, and each of the four corner grooves is equipped with a fixed pulley ⑾, and the side wire groove ⑸ on one side is equipped with a winding wheel ⑹, a commutato...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a blackboard cleaning wonderful tool. The blackboard cleaning wonderful tool is characterized in that the upper and lower edges of a blackboard are each provided with a guidegroove, an electric eraser is embedded into the guide grooves, and the left and right edges of the blackboard are each provided with a side line groove. The electric eraser mainly comprises a long-strip hard plate, a soft cotton eraser is arranged on the inner side of each long-strip hard plate, and the two ends of the long-strip hard plate are each connected with a guide wheel. The four corners of each guide groove are each provided with a fixed pulley, a winding wheel, a reversing device and a motor are installed in the side line groove on one side, a forward pulling line and a backward pulling line are connected to the guide wheel and penetrate the fixed pulleys to be connected to the winding wheel, and the motor is connected with a wire plug. When the blackboard cleaning wonderful toolworks, a switch is pressed down, the motor is powered on, the winding wheel is driven to rotate forwards and backwards, when the winding wheel rotates forwards, the backward pulling line is lengthened, the forward pulling line is wound on the winding wheel, and therefore the electric eraser is pulled to move rightwards, the motions are conversely done when the winding wheel rotates reversely, writing on the blackboard can quickly removed.
Description
technical field [0001] The invention relates to a teaching article, in particular to a blackboard eraser which is convenient for wiping the 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 urgently need a kind of artifact that is convenient to wipe the blackboard. Contents of the invention [0003] The object of the present invention is to provide an artifact for wiping the blackboard, which can quickly wipe the blackboard clean. [0004] The present invention is realized through the following technical solutions: the blackboard wiping artifact of the present invention is mainly composed of a guide groove, a blackboard, an...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B43L21/00B43L21/04B43L1/04
CPCB43L21/00B43L1/04B43L21/04
Inventor 陈树生
Owner 上杭县鑫驰汽车修配厂