CN219353425U

CN219353425U - Adjustable teaching aid

Info

Publication number: CN219353425U
Application number: CN202320435750.6U
Authority: CN
Inventors: 邹金美; 张国广; 许美婷; 陈梦星; 傅清梅
Original assignee: Minnan Normal University
Current assignee: Minnan Normal University
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-07-18
Anticipated expiration: 2033-03-09

Abstract

The utility model discloses an adjustable teaching aid which comprises a box body and a supporting component. The box body is provided with an opening at one side, two first teaching boards which are mutually attached are symmetrically arranged at the opening, a second teaching board is also in sliding fit with the inner side of the box body, the three teaching boards are mutually linked through the structure in the box body, when the box body needs to be unfolded and used, the first teaching boards are controlled to move outwards, the second teaching boards can be synchronously driven to extend out of the opening to realize the unfolding of a teaching aid, and the three teaching boards are positioned on the same plane for synchronous teaching; when needing to accomodate, the first teaching board of control inwards moves, drives the second teaching board in step and withdraws to the box inboard, and operation process is simple and convenient, and the teaching personnel of being convenient for use.

Description

Adjustable teaching aid

Technical Field

The utility model relates to the field of teaching aids, in particular to an adjustable teaching aid.

Background

Educational institutions are increasingly adopting mobile and height-adjustable teaching boards for the convenience of teaching in the process of teaching training, so that teaching can be carried out in different places and under different visual field conditions. The teaching aid that can remove generally can not set up too big teaching board in order to guarantee the security in its removal and the use, but less teaching board holds the content less, therefore current teaching aid can accomodate a plurality of teaching boards generally, and a plurality of teaching boards of expansion make its whole area enlarge again when using.

The process of accomodating and expanding a plurality of teaching boards that set up in the current adjustable teaching aid is comparatively loaded down with trivial details, has comparatively complicated installation generally, and is difficult for being in on the coplanar after a plurality of teaching boards expand, inconvenient writing and watching.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an adjustable teaching aid, which is convenient and quick in the process of storage and unfolding, and can enable the unfolded teaching board to be on the same plane.

In order to achieve the above object, the present utility model provides an adjustable teaching aid, comprising: a case and a support assembly; the supporting component is fixedly connected to the bottom surface of the box body; one side of the box body is provided with an opening, and the other two sides of the box body are respectively provided with a slot; a group of first connecting rods, second connecting rods, third connecting rods and fluted discs are symmetrically hinged in the box body; the two fluted discs are meshed; the slot, the first connecting rod and the second connecting rod are positioned at the same height; the first connecting rod is positioned between the slot and the second connecting rod on the same side; the first connecting rod and the second connecting rod on the same side incline towards the middle part of the box body and have the same inclination angle; the second connecting rod, the third connecting rod and the fluted disc are coaxially arranged; the other ends of the first connecting rod and the second connecting rod are hinged with a first teaching board; the two first teaching boards are symmetrically arranged in the opening and are attached to one side; two supporting channels are fixedly connected to two sides of the inner part of the box body; a second teaching board is slidably matched with the two supporting channels; one end of a group of fourth connecting rods is symmetrically hinged to two sides of the bottom surface of the second teaching board, and the other ends of the fourth connecting rods are respectively hinged to the other ends of the third connecting rods on the same side of the fourth connecting rods; the fourth connecting rod and the third connecting rod incline towards the middle part of the box body.

The second teaching board is inclined inwards towards the edge of one face of the opening.

The fluted disc is a sector fluted disc with a quarter circle shape.

One of the fluted discs is hollow in the middle; a limit column is fixedly connected in the box body; the limiting column is positioned in the hollow area of the fluted disc and used for limiting the rotation angle of the fluted disc.

The support assembly includes a support plate; one ends of a plurality of telescopic electric cylinders are fixedly connected to the upper side of the supporting plate, and a moving assembly is fixedly connected to the bottom of the supporting plate; and the other ends of the telescopic electric cylinders are fixedly connected with the bottom surface of the box body.

The moving component is a plurality of universal wheels.

One side of the opening of the box body is fixedly connected with a baffle plate.

One side of the two first teaching boards, which are mutually attached, is fixedly connected with a magnetic block respectively; the two opposite poles of the two magnetic blocks are contacted.

The utility model discloses the following technical effects:

according to the utility model, three mutually linked teaching boards are arranged, and the storage and the unfolding of all the teaching boards can be realized by controlling the movement of one teaching board, so that the teaching personnel can operate conveniently; and the unfolded teaching board is positioned on the same plane, so that teaching and watching are facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of the utility model in its deployed state;

fig. 2 is a front view of the utility model in a stowed condition;

FIG. 3 is a side view of the present utility model;

fig. 4 is a bottom view of the internal structure of the case in the accommodated state;

FIG. 5 is a bottom view of the internal structure of the case in the unfolded state;

wherein, 1, the box body; 11. slotting; 12. a support channel; 13. a baffle is arranged; 14. a limit column; 2. a first teaching board; 21. a first link; 22. a second link; 23. fluted disc; 24. a third link; 25. a magnetic block; 3. a second teaching board; 31. a fourth link; 4. a support plate; 41. a telescopic electric cylinder; 5. and a universal wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-5, the present utility model provides an adjustable teaching aid comprising: a case 1 and a supporting member; the supporting component is fixedly connected to the bottom surface of the box body 1; one side of the box body 1 is provided with an opening, and the other two sides are respectively provided with a slot 11; a group of first connecting rods 21, second connecting rods 22, third connecting rods 24 and fluted discs 23 are symmetrically hinged in the box body 1; the two fluted discs 23 are meshed; the slot 11, the first connecting rod 21 and the second connecting rod 22 are positioned at the same height, and the slot 11 is used for providing a moving space for the first connecting rod 21 and the second connecting rod 22 when extending out of the box body 1; the first connecting rod 21 is positioned between the groove 11 and the second connecting rod 22 on the same side; the first connecting rod 21 and the second connecting rod 22 on the same side incline towards the middle part of the box body 1 and have the same inclination angle; the second connecting rod 22, the third connecting rod 24 and the fluted disc 23 are coaxially arranged; the other ends of the first connecting rod 21 and the second connecting rod 22 are hinged with a first teaching board 2; the two first teaching boards 2 are symmetrically arranged in the opening and are attached to one side; the first connecting rod 21 and the second connecting rod 22 are fixedly connected with two points at the bottom of the first teaching board 2, so that angle control is provided for the first teaching board 2, and angle change in the moving process of the first teaching board 2 is prevented. Two supporting channels 12 are fixedly connected to two sides of the interior of the box body 1, and the supporting channels 12 are arranged right above the grooves 11; the two support channels 12 are in sliding fit with a second teaching board 3, and are used for providing support and limit for the second teaching board 3; two sides of the second teaching board 3 are in clearance fit with the inner wall of the box body 1, one end of a group of fourth connecting rods 31 is symmetrically hinged to two sides of the bottom surface of the second teaching board 3, and the other ends of the fourth connecting rods 31 are respectively hinged to the other ends of the third connecting rods 24 on the same side; the fourth link 31 and the third link 24 are inclined toward the middle of the case 1.

Specifically, as shown in fig. 4 and 5, the inclination degree of the third connecting rod 24 towards the center of the box 1 is greater than the inclination degree of the first connecting rod 21 and the second connecting rod 22, so that in the process that the first teaching board 2 is integrally unfolded outwards, after the first connecting rod 21 and the second connecting rod 22 are changed from inwards inclination to outwards inclination, the third connecting rod 24 and the fourth connecting rod 31 are in a relatively straight state, and the second teaching board 3 at the moment is ensured to slide to the front side and be positioned on the same plane with the first teaching board 2; the third connecting rod 24, the fluted disc 23 and the fourth connecting rod 31 are positioned at different height positions with the first connecting rod 21 and the second connecting rod 22, so that mutual touching influence is prevented.

In one embodiment of the application, the second teaching board 3 is inclined inwards towards the edge of one face of the opening, so that the second teaching board is prevented from being clamped with the first teaching board 2 in the moving process, and the first teaching board 2 is convenient to move.

In one embodiment of the present application, the toothed disc 23 is in the shape of a quarter-round sector toothed disc 23, which does not overlap the positions of other links, reducing the risk of device failure.

In one embodiment of the present application, one of the toothed plates 23 is hollow in the middle; a limit column 14 is fixedly connected in the box body 1; the limiting column 14 is located in the hollow area of the fluted disc 23 and is used for limiting the rotation angle of the fluted disc 23, and when the second teaching board 3 is flush with the first teaching board 2, the limiting column 14 is just abutted against the side wall of the fluted disc 23.

In one embodiment of the present application, the support assembly comprises a support plate 4; one end of a plurality of telescopic electric cylinders 41 are fixedly connected to the upper side of the supporting plate 4, and a moving assembly is fixedly connected to the bottom of the supporting plate; the other ends of the telescopic electric cylinders 41 are fixedly connected with the bottom surface of the box body 1.

In one embodiment of the present application, the moving assembly is a number of universal wheels 5.

In one embodiment of the present application, a baffle 13 is fixedly connected to one side of the opening of the case 1, so that the exposure of the internal structure of the device is reduced, and an eraser and an oil pen can be placed at the same time.

In one embodiment of the present application, a magnetic block 25 is fixedly connected to one side of the two first teaching boards 2, which are attached to each other; two opposite poles of the two magnetic blocks 25 are contacted, the magnetism of the two magnetic blocks 25 is weaker, the two first teaching boards 2 can be attracted to each other under the action of no external force, the two first teaching boards 2 are convenient to store, and the two first teaching boards 2 can be separated under the action of external force (such as pumping by a person).

Working principle: when teaching is required by using the present utility model, the device in the storage state is pushed to move to the target position, and the telescopic cylinder 41 is controlled to be adjusted to a proper height. At this time, one of the first teaching boards 2 is drawn outwards to enable the first teaching board 2 to move outwards, at this time, the first connecting rod 21 and the second connecting rod 22 rotate outwards, the second connecting rod 22 synchronously drives the third connecting rod 24 and the fluted disc 23 which are coaxial with the second connecting rod to rotate, and the fluted disc 23 drives the fluted disc 23 on the other side which is meshed with the fluted disc 23 to rotate, so that the first connecting rod 21 on the other side and the second connecting rod 22 synchronously rotate outwards, namely, when one of the first teaching boards 2 is drawn outwards, the other first teaching board 2 can be synchronously driven to move outwards. Simultaneously, two third connecting rods 24 outwards rotate, drive two fourth connecting rods 31 outwards rotate, make the contained angle between third connecting rod 24 and the fourth connecting rod 31 enlarge gradually, progressively promote the outward removal of second teaching board 3, the contained angle tends 180 at last, second teaching board 3 is pushed out to the coplanar with first teaching board 2 this moment, at this moment, one of them fluted disc 23 and spacing post 14 butt, the device blocks, first teaching board 2 can not outwards remove any more, accomplish the expansion of teaching aid.

After the teaching is finished and the teaching aid is not used any more, one of the first teaching boards 2 is pushed inwards, at the moment, each connecting rod and the fluted disc 23 are rotated reversely, the other first teaching board 2 is synchronously driven to move towards the middle part, the second teaching board 3 is driven to move towards the inside of the box body 1, and storage is completed after the two magnetic blocks 25 in the two first teaching boards 2 are attached.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. An adjustable teaching aid, comprising: a box body (1) and a supporting component; the supporting component is fixedly connected to the bottom surface of the box body (1); one side of the box body (1) is provided with an opening, and the other two sides of the box body are respectively provided with a slot (11); a group of first connecting rods (21), second connecting rods (22), third connecting rods (24) and fluted discs (23) are symmetrically hinged in the box body (1); the two fluted discs (23) are meshed; the slot (11), the first connecting rod (21) and the second connecting rod (22) are positioned at the same height; the first connecting rod (21) is positioned between the slot (11) and the second connecting rod (22) on the same side; the first connecting rod (21) and the second connecting rod (22) on the same side incline towards the middle part of the box body (1) and have the same inclination angle; the second connecting rod (22), the third connecting rod (24) and the fluted disc (23) are coaxially arranged; the other ends of the first connecting rod (21) and the second connecting rod (22) are hinged with a first teaching board (2); the two first teaching boards (2) are symmetrically arranged in the opening and are attached to one side; two supporting channels (12) are fixedly connected to two sides of the inside of the box body (1); a second teaching board (3) is slidably matched with the two supporting channels (12); one end of a group of fourth connecting rods (31) is symmetrically hinged to two sides of the bottom surface of the second teaching board (3), and the other ends of the fourth connecting rods (31) are respectively hinged to the other ends of the third connecting rods (24) on the same side of the fourth connecting rods; the fourth connecting rod (31) and the third connecting rod (24) incline towards the middle part of the box body (1).

2. An adjustable teaching aid according to claim 1, characterized in that the second teaching board (3) is inclined inwards towards the edge of one face of the opening.

3. An adjustable teaching aid according to claim 1, characterized in that the toothed disc (23) is in the form of a quarter-round sector toothed disc.

4. An adjustable teaching aid according to claim 3 characterized in that one of said toothed discs (23) is hollow in the middle; a limit column (14) is fixedly connected in the box body (1); the limiting column (14) is positioned in the hollow area of the fluted disc (23) and is used for limiting the rotation angle of the fluted disc (23).

5. An adjustable teaching aid according to claim 1, characterized in that the support assembly comprises a support plate (4); one end of a plurality of telescopic electric cylinders (41) is fixedly connected to the upper side of the supporting plate (4), and a moving assembly is fixedly connected to the bottom of the supporting plate; the other ends of the telescopic electric cylinders (41) are fixedly connected with the bottom surface of the box body (1).

6. An adjustable teaching aid according to claim 5 and characterized in that the moving assembly is a number of universal wheels (5).

7. An adjustable teaching aid according to claim 1, characterized in that a baffle (13) is fixedly connected to one side of the opening of the box (1).

8. An adjustable teaching aid according to claim 1, characterized in that one side of the two first teaching boards (2) which are mutually attached is fixedly connected with a magnetic block (25) respectively; the two magnetic blocks (25) are in contact with each other in different poles.