CN214324735U

CN214324735U - Demonstration blackboard for foreign language teaching

Info

Publication number: CN214324735U
Application number: CN202120263024.1U
Authority: CN
Inventors: 那洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-10-01
Anticipated expiration: 2031-01-30

Abstract

The utility model is suitable for a foreign language teaching technical field provides a foreign language teaching is with demonstration blackboard, include: the blackboard eraser comprises a blackboard frame, an eraser body and a first sponge, wherein a permanent magnet is arranged on the position, corresponding to the upper part of a demonstration board, of the blackboard frame, the number of the erasers is multiple, a hairbrush is arranged on the eraser body, a first dust collecting box is connected to the position, corresponding to the lower part of the hairbrush, of the eraser body in a sliding mode, the first sponge is in a wet state, the eraser body is connected with the multiple eraser bodies through a corrugated pipe to increase the erasing area, the problem that the teaching quality is affected due to excessive time consumption when the blackboard writing is erased is avoided, chalk dust is adhered to the first sponge to avoid the problem that the chalk dust flies up to affect the whole teaching environment, teaching cards are covered with a color film to assist teaching, the teaching quality is improved, the device is fixed through a foot brake on a universal wheel, and inconvenience in writing caused by movement of the device when the blackboard writing is prevented.

Description

Demonstration blackboard for foreign language teaching

Technical Field

The utility model relates to a foreign language teaching technical field specifically is a foreign language teaching is with demonstration blackboard.

Background

The demonstration blackboard is not particularly a black board, is a plane which can be repeatedly written in the traditional sense, is hard in board, is mainly used for teaching, and in English teaching, a teacher often needs to write board books by means of the demonstration blackboard for word teaching.

Most of the existing demonstration blackboards for foreign language teaching are fixed on the wall and inconvenient to move, students are influenced to watch blackboard writing, a teacher needs to wipe the blackboard writing for many times when using an eraser to wipe large-area blackboard writing, time is too long, the quality of lessons is influenced, chalk dust flies when the eraser wipes the blackboard writing, the environment is polluted, and the chalk dust is easily inhaled by people to influence the health, so that the whole teaching environment is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a foreign language teaching is with demonstration blackboard to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a demonstration blackboard for foreign language teaching, comprising: the blackboard eraser comprises a blackboard frame, an eraser and a first sponge, wherein a supporting seat is installed at the bottom of the blackboard frame, a demonstration board is arranged on the blackboard frame, a permanent magnet is arranged at a position, corresponding to the upper part of the demonstration board, of the blackboard frame, the number of the erasers is multiple, a magnetic block is arranged on each eraser, the magnetism of the magnetic block and the magnetism of the permanent magnet attract each other, a hairbrush is arranged on the eraser, a first dust collection box is connected to the position, corresponding to the lower part of the hairbrush, of the eraser in a sliding manner, the first sponge is in a wet state and is installed in a first dust collection cavity arranged on the first dust collection box, a gap exists between the first dust collection box and the hairbrush in the vertical direction, the first dust collection box is elastically connected with the eraser, the blackboard frame is respectively in sliding connection with two corrugated pipes through two limiting grooves, and the corrugated pipes are in sliding connection with the eraser through holes on the eraser, two blackboard erasers at two ends are respectively hinged with a turnover plate, and a plurality of fixed teeth are arranged at the bottom of the turnover plate.

As a further aspect of the present invention: the blackboard eraser is characterized in that a sliding groove is formed in one side, facing the blackboard eraser, of the first dust collection box, a second dust collection box is connected in the sliding groove in a sliding mode, a second dust collection cavity is formed in the second dust collection box, second wet sponge is installed in the second dust collection cavity, one end of the second dust collection box is connected with the first dust collection box through a spring, and the other end of the second dust collection box is fixedly connected with the blackboard eraser.

As a further aspect of the present invention: the demonstration board is in sliding fit with the plurality of placing boards, a push rod and a groove are arranged on the placing boards, a coil spring assembly is arranged in the placing boards and fixedly connected with a color film, the color film is in sliding fit with the groove in the placing boards, the color film is made of a magnetic material, and the magnetism of the color film is attracted with that of the enamel on the surface of the demonstration board.

As a further aspect of the present invention: the number of the coil spring assemblies is multiple and the coil spring assemblies are respectively connected with a plurality of color films with different colors.

As a further aspect of the present invention: a plurality of universal wheels provided with foot brakes are installed at the bottom of the supporting seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the blackboard eraser is connected with a plurality of blackboard erasers through the corrugated pipe to increase the erasing area, so that the problem that the teaching quality is influenced due to excessive time consumption when blackboard writing is erased is avoided, and chalk dust is adhered to the first sponge to avoid the problem that the whole teaching environment is influenced due to the fact that the chalk dust flies upward.

2. Cover the teaching card through various membrane and carry out the auxiliary teaching, improve the teaching quality.

3. The device is fixed through the foot brake on the universal wheel, so that inconvenience in writing caused by movement of the device during writing on a writing board is prevented.

Drawings

Fig. 1 is a schematic structural view of a demonstration blackboard for foreign language teaching.

Fig. 2 is a schematic structural view of an eraser in a demonstration blackboard for foreign language teaching.

Fig. 3 is a schematic structural view of a first dust collecting box in a demonstration blackboard for foreign language teaching.

Fig. 4 is a schematic structural view of a turning plate in a demonstration blackboard for foreign language teaching.

Fig. 5 is a schematic structural view of a placing plate in a demonstration blackboard for foreign language teaching.

In the drawings: 1-blackboard frame, 2-demonstration board, 3-support seat, 4-universal wheel, 5-eraser, 6-magnet, 7-permanent magnet, 8-brush, 9-first dust collection box, 10-first dust collection cavity, 11-first sponge, 12-chute, 13-second dust collection box, 14-second dust collection cavity, 15-second sponge, 16-corrugated pipe, 17-limit groove, 18-turnover plate, 19-fixed tooth, 20-placing plate, 21-push rod, 22-color film and 23-coil spring assembly.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

As shown in fig. 1-4, in the embodiment of the present invention, a demonstration blackboard for foreign language teaching, include: the blackboard comprises a blackboard frame 1, an eraser 5 and a first sponge 11, wherein the bottom of the blackboard frame 1 is provided with a supporting seat 3, the blackboard frame 1 is provided with a demonstration board 2, a permanent magnet 7 is arranged at a position of the blackboard frame 1 corresponding to the upper part of the demonstration board 2, the number of the erasers 5 is multiple, each eraser 5 is provided with a magnetic block 6, the magnetism of the magnetic block 6 is attracted with the magnetism of the permanent magnet 7, the eraser 5 is provided with a brush 8, the position of the eraser 5 corresponding to the lower part of the brush 8 is slidably connected with a first dust collection box 9, the first sponge 11 is in a wet state, the first sponge 11 is arranged in a first dust collection cavity 10 arranged on the first dust collection box 9, a gap exists between the first dust collection box 9 and the brush 8 in the vertical direction, the first dust collection box 9 is elastically connected with the eraser 5, the blackboard frame 1 is respectively slidably connected with two corrugated pipes 16 through two limiting grooves 17, the corrugated pipe 16 is connected with the eraser 5 in a sliding manner through a through hole in the eraser 5, two erasers 5 at two ends are respectively hinged with a turnover plate 18, and the bottom of the turnover plate 18 is provided with a plurality of fixed teeth 19.

As shown in fig. 2 to 3, as a preferred embodiment of the present invention, a sliding groove 12 is disposed on one side of the first dust collecting box 9 facing the eraser 5, a second dust collecting box 13 is slidably connected in the sliding groove 12, a second dust collecting chamber 14 is disposed on the second dust collecting box 13, a second sponge 15 is installed in the second dust collecting chamber 14, one end of the second dust collecting box 13 is connected to the first dust collecting box 9 through a spring, and the other end of the second dust collecting box 13 is fixedly connected to the eraser 5.

In practical application, in an initial state, a spring between the first dust collection box 9 and the second dust collection box 13 has no deformation, a gap between the first dust collection box 9 and the blackboard eraser 5 is the largest, when a small-area blackboard book needs to be erased, one blackboard eraser 5 above an erasing area is held by hands and is forced to be separated from an adsorption state with the permanent magnet 7, the blackboard book is erased, if the area of the blackboard book is too large, the corrugated pipe 16 is pushed to slide along the limiting groove 17 and pass through holes of at least two adjacent blackboard erasers 5, the blackboard erasers 5 are connected through the corrugated pipe 16, the turnover plate 18 is rotated to enable the fixed teeth 19 to be meshed and fixed with the corrugated pipe 16, then the splicing part between the blackboard erasers 5 is grasped to erase, the disposable erasing area can be increased, the problem that the teaching quality is influenced by too much large area when the blackboard erasers are erased is avoided, the blackboard eraser 5 is pressed on the demonstration plate 2 when the blackboard book is erased, the spring between the first dust collection box 9 and the second dust collection box 13 is extruded to deform, the second dust collection box 13 slides to enter the sliding groove 12, chalk dust enters the first dust collection cavity 10 through a gap between the brush 8 and the first dust collection box 9 when the brush 8 erases the blackboard writing, and is adhered to the first sponge 11, so that the problem that the whole teaching environment is affected by the flying chalk dust is avoided, after erasing is completed, in the moment of picking up the blackboard eraser 5 from the demonstration board 2, the spring between the first dust collection box 9 and the second dust collection box 13 recovers the deformed elastic force to enable the second dust collection box 13 to slide out, the falling chalk dust enters the first dust collection cavity 10 and the second dust collection cavity 14 when the brush 8 leaves the demonstration board 2, and the first sponge 11 and the second sponge 15 simultaneously adhere the chalk dust, so that the dust removal effect is better when the blackboard writing is erased.

As shown in fig. 1-5, as the utility model discloses another preferred embodiment, demonstration board 2 and a plurality of board 20 sliding fit of placing, be equipped with push rod 21 and recess on placing the board 20, be equipped with coil spring subassembly 23 in placing the board 20, and coil spring subassembly 23 and various membrane 22 fixed connection, various membrane 22 and the recess sliding fit on placing the board 20, various membrane 22 has magnetic material to make, and the magnetism of various membrane 22 attracts mutually with the magnetism of demonstration board 2 surface enamel.

As shown in fig. 5, as another preferred embodiment of the present invention, the number of the coil spring assemblies 23 is plural and is respectively connected to plural color films 22 with different colors.

In practical application, under the initial condition, place the shrink of board 20 inside demonstration board 2, only push rod 21 exceeds demonstration board 2 surface, when the teacher need post the teaching card, pull out through push rod 21 and place board 20, place the card and place convenient student's watch above board 20, pull behind various membrane 22 with its one end and demonstration board 2 contact, can fix various membrane 22 because of magnetic attraction and hide the teaching card, the teaching card auxiliary teaching of different colour markable difference, various membrane 22 has certain transparency and can not influence the content show on the teaching card, can obtain the third kind colour with the various membrane 22 stack of two different colours and hide the marking effect, the auxiliary teacher carries out categorised teaching, loosen the fixed of various membrane 22 after the teaching is accomplished, wind spring assembly 23 resumes deformation and makes various membrane 22 slide and get into and place in the board 20.

As shown in fig. 1, as another preferred embodiment of the present invention, a plurality of universal wheels 4 with foot brakes are installed at the bottom of the supporting seat 3.

In practical application, the device is fixed by adjusting and controlling the service brake on the universal wheel 4 after the universal wheel 4 moving device moves to a proper position, so that inconvenience in writing caused by movement of the device during writing on a writing board is prevented.

The utility model discloses a theory of operation is:

promote bellows 16 and make it slide along spacing groove 17 and through the through-hole of two at least adjacent blackboard erasers 5, connect these blackboard erasers 5 through bellows 16, and rotatory returning face plate 18 makes a plurality of fixed teeth 19 carry out the interlock fixed to bellows 16, grasp concatenation department between the blackboard erasers 5 afterwards and erase and to increase disposable area of erasing, the too many problem that influences the teaching quality of time consuming when avoiding erasing large tracts of land blackboard writing, chalk dust gets into first dust collection cavity 10 when brush 8 erases the blackboard writing, and the adhesion is on first sponge 11, avoid chalk dust to fly upward the problem that influences whole teaching environment. Pull out through push rod 21 and place board 20, place the teaching card in and place board 20 top convenient student and watch, pull various membrane 22 with its one end through magnetism suction and demonstration board 2 fixed and make various membrane 22 cover the teaching card, the teaching card auxiliary teaching that different colours can mark is different. The device is fixed by adjusting and controlling the foot brake on the universal wheel 4 after the universal wheel 4 moving device moves to a proper position, so that inconvenience in writing caused by movement of the device during writing on a writing board is prevented.

It should be noted that the universal wheel 4 and the coil spring assembly 23 in the present embodiment are both in the prior art, and the present embodiment does not modify the prior art, so that the specific model, modeling structure, etc. of the universal wheel 4 and the coil spring assembly 23 are not required to be disclosed, and the integrity of the present embodiment is not affected.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A demonstration blackboard for foreign language teaching, comprising: the blackboard eraser comprises a blackboard frame (1), an eraser (5) and a first sponge (11), and is characterized in that a supporting seat (3) is installed at the bottom of the blackboard frame (1), a demonstration board (2) is arranged on the blackboard frame (1), a permanent magnet (7) is arranged at a position, corresponding to the upper part of the demonstration board (2), of the blackboard frame (1), a plurality of erasers (5) are arranged, a magnetic block (6) is arranged on each eraser (5), the magnetism of the magnetic block (6) and the magnetism of the permanent magnet (7) are attracted, a hairbrush (8) is arranged on each eraser (5), a first dust collection box (9) is connected to the position, corresponding to the lower part of the hairbrush (8), of each eraser (5) in a sliding mode, the first sponge (11) is in a wet state and is installed in a first dust collection cavity (10) formed in the first dust collection box (9), and a gap exists between the first dust collection box (9) and the hairbrush (8) in the vertical direction, the blackboard eraser is characterized in that the first dust collection box (9) is elastically connected with the blackboard eraser (5), the blackboard frame (1) is respectively in sliding connection with two corrugated pipes (16) through two limiting grooves (17), the corrugated pipes (16) are in sliding connection with the blackboard eraser (5) through holes in the blackboard eraser (5), two blackboard erasers (5) positioned at two ends are respectively hinged with a turnover plate (18), and a plurality of fixed teeth (19) are arranged at the bottom of the turnover plate (18).

2. The demonstration blackboard for foreign language teaching according to claim 1, wherein a chute (12) is arranged on one side of the first dust collection box (9) facing the blackboard eraser (5), a second dust collection box (13) is slidably connected in the chute (12), a second dust collection chamber (14) is arranged on the second dust collection box (13), a second wet sponge (15) is installed in the second dust collection chamber (14), one end of the second dust collection box (13) is connected with the first dust collection box (9) through a spring, and the other end of the second dust collection box (13) is fixedly connected with the blackboard eraser (5).

3. The demonstration blackboard for foreign language teaching according to claim 1, wherein the demonstration board (2) is in sliding fit with a plurality of placing boards (20), push rods (21) and grooves are arranged on the placing boards (20), coil spring assemblies (23) are arranged in the placing boards (20), the coil spring assemblies (23) are fixedly connected with color films (22), the color films (22) are in sliding fit with the grooves on the placing boards (20), the color films (22) are made of magnetic materials, and the magnetism of the color films (22) is attracted with that of magnetic paint on the surfaces of the demonstration boards (2).

4. The demonstration blackboard for foreign language teaching according to claim 3, wherein the number of the coil spring assemblies (23) is plural and the coil spring assemblies are respectively connected with plural color films (22) with different colors.

5. The demonstration blackboard for foreign language teaching according to claim 1, characterized in that a plurality of universal wheels (4) with foot brakes are installed at the bottom of the supporting base (3).