CN215117828U

CN215117828U - English tense teaching aid

Info

Publication number: CN215117828U
Application number: CN202121458935.6U
Authority: CN
Inventors: 黄艳梅; 杨智皓
Original assignee: Lanzhou Institute Of Information Technology
Current assignee: Lanzhou Institute Of Information Technology
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-10
Anticipated expiration: 2031-06-29

Abstract

The utility model provides an english tense teaching aid, comprises a box bod, be equipped with the back shaft along its length direction in the box body, the cover is equipped with a plurality of word show pieces on the back shaft, and the surface of word show piece forms four writing areas, the one end of word show piece is equipped with one-way ratchet, the bottom of box body is equipped with the through-hole, be equipped with the pull rod in the through-hole, the accessible pull rod drives the rotation of word show piece, and the front of box body is equipped with a plurality of show holes with word show piece one-to-one along box body length direction. The utility model discloses set up a plurality of rotatable word show pieces in the box body, write the subject of the different states in the sentence, help verb and word in the different district of writing of word show piece, make word show piece rotate through the pulling pull rod, and then the tense of transform sentence, the vivid image is convenient for show and the student understands the memory, simple structure, and the using-way is convenient, is fit for english teaching and popularizes and applies.

Description

English tense teaching aid

Technical Field

The utility model belongs to the technical field of teaching aid, a english tense teaching aid is related to.

Background

In English teaching, English grammar is the key point, and the basic grammar is English tense. There are many tenses in English, and it is easy to be confused in learning. In general teaching, most teachers teach abstractly through blackboard writing, visual impression is not given to students, and teaching efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an english tense teaching aid to the problem that prior art exists.

Therefore, the utility model adopts the following technical scheme:

an English tense teaching aid comprises a box body, a supporting shaft is arranged in the box body along the length direction of the box body, the supporting shaft is sleeved with a plurality of word display blocks, the word display blocks are of rectangular structures and can rotate on the supporting shaft, four writing areas are formed on the surfaces of the word display blocks, one end of each word display block is provided with a one-way ratchet wheel, the inner ring of the one-way ratchet wheel is fixedly connected with the word display block, the outer ring of the one-way ratchet wheel is provided with teeth along the circumferential direction, the bottom of the box body is provided with a through hole, a pull rod is arranged in the through hole and can move up and down in the through hole, a rack meshed with the teeth is fixed at the top end of the pull rod, a spring is sleeved on the pull rod, the spring is positioned in the box body, the bottom end of the spring is fixed on the box body, the top end of the spring is fixed on the side wall of the pull rod, the front of box body is equipped with a plurality of show holes that show the piece one-to-one with the word along box body length direction.

Furthermore, the top of the box body is provided with a hook.

Furthermore, two sides of the word display block are provided with shaft rings, and the shaft rings are fixed on the supporting shaft.

Further, an LED lamp is arranged in the box body.

The beneficial effects of the utility model reside in that: set up a plurality of rotatable word show pieces in the box body, write the subject of the different states in the sentence, help verb and word in the different writing areas of word show piece, make word show piece rotate through the pulling pull rod, and then the tense of transform sentence, vivid is convenient for show and student understand the memory, simple structure, and the using-way is convenient, is fit for english teaching and popularizes and applies.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

in the figure, 1-box body, 2-support shaft, 3-word display block, 4-writing area, 5-one-way ratchet wheel, 501-inner ring, 502-outer ring, 503-tooth, 6-through hole, 7-pull rod, 8-rack, 9-spring, 10-collar, 11-display hole, 12-hook and 13-LED lamp.

Detailed Description

The utility model is explained in detail with the attached drawings as follows:

as shown in fig. 1 and 2, an english tense teaching tool comprises a box body 1, a supporting shaft 2 is arranged in the box body 1 along the length direction, a plurality of word display blocks 3 are sleeved on the supporting shaft 2, the word display blocks 3 are rectangular and can rotate on the supporting shaft 2, the word display blocks 3 have four surfaces, four writing areas 4 are formed on the surfaces of the word display blocks, corresponding words can be written on the writing areas when the tool is used, one end of each word display block 3 is provided with a one-way ratchet 5, the one-way ratchet 5 is a one-way ratchet 5 used by a conventional bicycle and is provided with an inner ring 501 and an outer ring 502, the inner ring 501 can rotate in one direction under the driving of the outer ring 502, the inner ring 501 of the one-way ratchet 5 is fixedly connected with the word display blocks 3 and can drive the word display blocks 3 to rotate, the outer ring 502 of the one-way ratchet 5 is provided with teeth 503 along the circumferential direction, namely the outer ring 502 of the one-way ratchet 5 is of a gear structure, the bottom of box body 1 is equipped with through-hole 6, be equipped with pull rod 7 in the through-hole 6, stretch out outside box body 1 of pull rod 7, pull rod 7 can reciprocate in through-hole 6, the top of pull rod 7 is fixed with the rack 8 with tooth 503 engaged with, the cover is equipped with spring 9 on the pull rod 7, spring 9 is located the box body 1 insidely, the bottom mounting of spring 9 is in box body 1, the top is fixed in the lateral wall of pull rod 7, after pulling pull rod 7 downwards, it can resume the normal position under the effect of spring 9 elasticity, the stroke distance that pull rod 7 moved downwards is the quarter of outer lane 502 diameter in one-way ratchet 5 in addition, this kind of setting can make and pull one side pull rod 7 back word show piece 3 rotation one face downwards.

In order to prevent the word display block 3 from moving axially along the supporting shaft 2, a collar 10 is provided on each side of the word display block 3, and the collars 10 are fixed to the supporting shaft 2.

The front of box body 1 is equipped with a plurality of show holes 11 with word show piece 3 one-to-one along 1 length direction of box body, and the content accessible show hole 11 of word show piece 3 demonstrates, and 1 top of box body is equipped with couple 12, and couple 12 is used for hanging box body 1 on teacher's blackboard.

In order to make the content of the word display block 3 in the box body 1 easy to see, an LED lamp 13 is arranged in the box body 1.

The utility model discloses a use as follows:

before use, a teacher firstly writes corresponding words on the upper and lower parts of the word display block through the display hole 11, specifically, a subject can be written in the writing area 4 of the leftmost word display block 3, each writing area 4 writes different subjects, auxiliary verbs are written in the adjacent word display blocks 3, and different auxiliary verbs are written in different writing areas 4, such as have, has, had or will; then writing verbs of different tenses into different writing areas, such as past word segmentation or verb original shape of the verbs, of the adjacent word display blocks 3, hanging the box body 1 on a blackboard edge of a classroom through the hook 12 after writing is finished, and only pulling the corresponding pull rod 7 downwards to enable the word display blocks 3 to rotate when degrading and using, specifically, pulling the pull rod 7 to drive the rack 8 to move downwards to drive the rack 8 to drive the outer ring 502 of the one-way ratchet wheel 5 to rotate, then the outer ring 502 to drive the inner ring 501 and the word display blocks 3 to rotate, so that the writing areas 4 are converted, then the pull rod 7 returns upwards under the action of the spring 9, the rack 8 moves upwards to drive the outer ring 502 of the one-way ratchet wheel 5 to rotate reversely, at the moment, the inner ring 501 of the one-way ratchet wheel 5 does not rotate, the corresponding word display blocks 3 do not change, and further change the tenses of one sentence of English, the tense quick switching is realized, so that the teaching is more convenient and visual, and the impression of students is deepened.

Claims

1. An English tense teaching aid is characterized by comprising a box body, wherein a supporting shaft is arranged in the box body along the length direction of the box body, the supporting shaft is sleeved with a plurality of word display blocks, the word display blocks are of rectangular structures and can rotate on the supporting shaft, four writing areas are formed on the surfaces of the word display blocks, one end of each word display block is provided with a one-way ratchet wheel, the inner ring of the one-way ratchet wheel is fixedly connected with the word display block, the outer ring of the one-way ratchet wheel is provided with teeth along the circumferential direction, the bottom of the box body is provided with a through hole, a pull rod is arranged in the through hole and can move up and down in the through hole, a rack meshed with the teeth is fixed at the top end of the pull rod, a spring is sleeved on the pull rod, the spring is positioned in the box body, the bottom end of the spring is fixed on the box body, the top end of the spring is fixed on the side wall of the pull rod, the front of box body is equipped with a plurality of show holes that show the piece one-to-one with the word along box body length direction.

2. The English tense teaching aid of claim 1, wherein the top of the box body is provided with a hook.

3. The english tense teaching aid according to claim 1, wherein said word display block is provided with collars on both sides thereof, said collars being fixed to a support shaft.

4. The English tense teaching aid of claim 1, wherein an LED lamp is arranged in the box body.