Teaching tool for Chinese class

A technology for Chinese lessons and teaching aids, applied in printing, blackboard or slate cleaning devices, office supplies, etc., can solve the problems of damaging the physical and mental health of teachers and students, being unable to wipe the blackboard, and easily causing dust, so as to reduce friction and improve Wiping efficiency, noise reduction effect

Inactive Publication Date: 2018-02-16
NANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that in the process of removing chalk traces, the wiping body is easy to cause the problem of dust, which is harmful to the physical and mental health of teachers and students
The disadvantage of this structure is that the wiping body cannot wipe the blackboard as a whole, so the workload in the use process is relatively large, and the practicability is not strong

Method used

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  • Teaching tool for Chinese class
  • Teaching tool for Chinese class
  • Teaching tool for Chinese class

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1 to Figure 3As shown, the present invention comprises a blackboard 1 and a blackboard eraser. The upper and lower ends of the blackboard 1 are fixedly installed with a walking track by a positioning seat 2. The walking track includes an upper track 3 and a lower track 4, and the two ends of the upper track 3 and the lower track 4 are fixed by bolts 5. Connection, a spacer 6 is set between the upper track 3 and the lower track 4, the spacer 6 is sleeved on the outside of the bolt 5, the blackboard eraser includes a support frame and a pressing plate 7 fixed on the support frame, and the support frame is a rectangular frame structure including an upper support Rod 8, following support rod 9, left support rod 10 and right support rod 11, on the last support rod 8, lower support rod 9, running mechanism is all installed, and running mechanism comprises first positioning post 12 and walking wheel 13, and first positioning post One end of 12 is fixedly connec...

Embodiment 2

[0036] The structure of this embodiment is basically the same as that of Embodiment 1, the difference is: as Figure 4 to Figure 6 As shown, the lower end surface of the upper support rod 8 and the upper end surface of the lower support rod 9 are provided with two guide grooves, the guide grooves include connected inclined grooves 17 and positioning grooves 18, the positioning grooves 18 are arranged front and rear, and the rear of the pressing plate 7 The end face is fixedly connected with the second positioning column 19, the second positioning column 19 is two cylindrical structures with a small upper part and a larger lower part, the second positioning column 19 is slidably connected in the guide groove, a spring 20 is arranged between the pressing plate 7 and the wiping body 15, The springs 20 are multiple not only as a buffer for the wiping body 15 , but also as a connection between the wiping body 15 and the pressing plate 7 .

Embodiment 3

[0038] The structure of this embodiment is basically the same as that of Embodiment 2, the difference is: as Figure 7 As shown, the wiping body 15 has a multi-stage structure. This structure is designed to partially replace the wiping body at a certain position during use, thereby reducing maintenance costs.

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Abstract

The invention belongs to the technical field of teaching facilities, and particularly relates to a teaching tool for the Chinese class. The teaching tool for the Chinese class comprises a blackboard and a blackboard eraser. Traveling rails are arranged at the upper end and the lower end of the blackboard correspondingly. The blackboard eraser comprises a supporting frame and a pressing plate. Traveling mechanisms are arranged at the upper end and the lower end of the supporting frame correspondingly. Each traveling mechanism comprises first positioning columns and a plurality of traveling wheels, and the multiple traveling wheels are all in sliding fit with the traveling rails. An eraser body and a dust-proof baffle are arranged on the rear end face of the pressing plate. The dust-proof baffle is located around the eraser body. The rear end face of the dust-proof baffle and the rear end face of the eraser body are both in contact connection with the blackboard. According to the teaching tool for the Chinese class, in the whole erasing process, the dust-proof baffle located around the eraser body can effectively lower the probability of chalk dust flying, the pressing plate can be rapidly mounted on or dismounted from the supporting frame under the sliding fit of second positioning columns and guide grooves, and thus chalk dust on the eraser body and in the dust-proof baffle canbe removed periodically and rapidly.

Description

technical field [0001] The invention belongs to the technical field of teaching facilities, and in particular relates to a Chinese teaching aid. Background technique [0002] Chinese generally refers to the Chinese language family and its writing system. Chinese characters originated from pictures. In the early stage of Chinese characters, the shape of pictographic characters was directly related to the meaning of the morpheme it represented. In recent years, the awareness of Chinese mother tongue has swept the world. The current Chinese craze and various news hotspots from China on the Internet are reminding us that we should start to pay more attention to and discuss the cultural phenomenon of Chinese vocabulary export. The undergraduate majors under the Chinese Department of universities generally include Chinese Language and Literature, Chinese Literature, Chinese Language, Classical Philology, Applied Linguistics, Chinese as a Foreign Language, International Chinese Edu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04B43L21/02
CPCB43L1/04B43L21/02
Inventor 赵丽霞
Owner NANYANG INST OF TECH
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