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Teaching plate with character zooming function

A teaching board and functional technology, applied in optics, teaching aids, magnifying glasses, etc., can solve the problems of affecting teaching efficiency, not being flexible enough to adjust accuracy, and affecting children's vision, and achieve the effect of easy portability

Inactive Publication Date: 2021-08-10
JIANGSU OPEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution provides a structure for amplifying the content in the display screen, but the display screen has defects that affect children's eyesight, and the above-mentioned amplifying structure is relatively simple, so it is not flexible enough and the adjustment accuracy is low. Although the operation is simple, but Adjusting to the appropriate font size requires repeated adjustments, which affects teaching efficiency

Method used

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  • Teaching plate with character zooming function
  • Teaching plate with character zooming function
  • Teaching plate with character zooming function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A teaching board with the function of zooming characters, comprising a board body 1, the board body 1 includes a writing board 14 and a display board 15, teaching cards for teaching are inserted in the display board 15, and the front part of the board body 1 is provided with a The plate body 1 is parallel to the magnifying glass 2 with the same height as the plate body 1. The magnifying glass 2 is installed in the first sliding pair. The first sliding block 4 that slides, the magnifying glass 2 is fixedly connected with the first sliding block 4, and the first sliding pair is installed in the second sliding pair, such as Figure 8 As shown, the first guide rail 3 is an I-shaped rail, the first slider 4 is sleeved on the outside of the first guide rail 3, and the inside of the first slider 4 is provided with a side recess on the side of the first guide rail 3 The roller 42 that rolls in the groove 41, the second sliding pair includes the second guide rail 19 that is arra...

Embodiment 2

[0037] Such as Figure 5 As shown, the preferred driving device is a cylinder 21, the telescopic rod of the cylinder 21 is arranged facing the direction of the board body 1, the first guide rail 3 is located in front of the cylinder 21, and the telescopic rod of the cylinder 21 is connected with the first slider 4. Controlling the sliding of the first sliding block 4 through the cylinder 21 has the advantage of labor-saving operation.

Embodiment 3

[0039] Preferably, in order to reduce costs and facilitate maintenance, the driving device is a gear 5 rotatably connected to the second slider 20 , and a first rack 6 meshing with the gear 5 is provided on the outside of the first slider 4 .

[0040] Such as figure 1 and figure 2As shown, the gear is arranged vertically, the rotating shaft 52 in the gear 5 is parallel to the plate surface of the plate body 1, the two ends of the rotating shaft 52 are rotatably connected with a rotating shaft seat 51, and the bottom of the rotating shaft seat 41 is connected to the second slide block. 20 is fixedly connected to 51, the first guide rail 3 is located above the gear, a handle 16 is installed on the first slider 4, a chute 10 parallel to the second guide rail 19 is set in the plate body 1, and the end of the first guide rail 3 is slidably connected In the chute 10, the first rack 6 is located on the lower surface of the first slider 4, the bottom of the gear 5 is provided with a...

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Abstract

The invention relates to the field of English teaching instruments, in particular to a teaching plate with a character zooming function, which comprises a plate body and is characterized in that the front part of the plate body is provided with a magnifying lens which is parallel to the plate body and is consistent with the plate body in height, and the magnifying lens is arranged in a first sliding pair; the first sliding pair comprises a first guide rail arranged in the direction facing the plate body and a first sliding block sliding in the first guide rail, the magnifying lens is fixedly connected with the first sliding block, the first sliding pair is installed in the second sliding pair, and the second sliding pair comprises a second guide rail arranged in the length direction of the plate body and a second sliding block sliding in the second guide rail. A first sliding pair and a driving device connected with the first sliding block are installed in the second sliding block, the magnifying lens is connected with the two sliding pairs which are arranged in a combined mode, and the function of magnifying Chinese characters at any position in the plate body is achieved.

Description

technical field [0001] The invention relates to the field of teaching aids, in particular to a teaching board with the function of zooming in and out of characters. Background technique [0002] The existing teaching aids are projection equipment, but because children's vision is not yet fully developed, excessive use of projection equipment will cause damage to the vision of young children, so it is not suitable for use in the English teaching process of young children. In the process of English teaching for young children, teachers generally use a variety of cards with patterns and characters to achieve the teaching effect of entertaining and entertaining. However, the inconvenience caused by card replacement reduces the efficiency, and due to the limitation of card size, Considering whether the students in the back row can see clearly, too much content cannot be presented in the card. [0003] The Chinese patent with the notification number CN109493693A discloses an Engl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B19/00G02B25/00A47B97/04
CPCA47B97/04G02B25/002G09B19/00
Inventor 孙云孙雁冰陈霞李莉方宇波嵇晓雷
Owner JIANGSU OPEN UNIV