CN215599833U

CN215599833U - Multimedia autonomous auxiliary teaching aid

Info

Publication number: CN215599833U
Application number: CN202122121631.7U
Authority: CN
Inventors: 刘雪梅
Original assignee: Binzhou University
Current assignee: Binzhou University
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-21
Anticipated expiration: 2031-09-03

Abstract

The utility model belongs to the technical field of teaching aids, and particularly discloses a multimedia autonomous auxiliary teaching aid, which comprises a concave plate, a rotating shaft positioned in the concave plate, a curtain connected to the rotating shaft and rings connected to the two ends of the rotating shaft, wherein a connecting rod is inserted on the side wall of one end of the concave plate in a sliding way, the inner side of the concave plate is rotatably provided with a conical block through a driving piece, a lifting mechanism is arranged behind the concave plate, one end of the connecting rod is rotatably connected with the conical block, and the other end of the connecting rod is fixedly connected with a connecting disc, a spring is fixedly connected between the conical block and the inner side surface of the concave plate, the spring is positioned at the outer side of the connecting rod, the utility model has the advantages that the projection curtain for assisting the multimedia projector to show pictures is convenient to descend from a high place, meanwhile, the worker can rapidly and simply disassemble and assemble the projection curtain, and the worker can maintain the projection curtain conveniently.

Description

Multimedia autonomous auxiliary teaching aid

Technical Field

The utility model belongs to the technical field of teaching aids, and particularly discloses a multimedia autonomous auxiliary teaching aid.

Background

Teaching aid, the model that indicates to be used for explaining something, the real object, the sample, the instrument, the chart, the slide etc, including teaching equipment, teaching instrument, real standard equipment, education is equipped, experimental facilities, teaching sample, teaching model etc, multimedia projector is when using, and the projection curtain need be used to the taste to assist multimedia projector to show the picture, and current projection curtain is setting up at the eminence usually, and the dismouting work of projection curtain is inconvenient very moreover, is unfavorable for maintaining the projection curtain.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a multimedia autonomous teaching aid for solving the problems in the background art.

In order to achieve the purpose, the utility model provides a multimedia autonomous auxiliary teaching aid which comprises a concave plate, a rotating shaft, a curtain and circular rings, wherein the rotating shaft is positioned in the concave plate, the curtain is connected to the rotating shaft, the circular rings are connected to two ends of the rotating shaft, a connecting rod is inserted into the side wall of one end of the concave plate in a sliding mode, a conical block is arranged on the inner side of the concave plate in a rotating mode through a driving piece, a lifting mechanism is arranged behind the concave plate, one end of the connecting rod is connected with the conical block in a rotating mode, the other end of the connecting rod is fixedly connected with a connecting disc, a spring is fixedly connected between the conical block and the inner side face of the concave plate and positioned on the outer side of the connecting rod, the outer walls of the conical block and the conical block are respectively attached to the edges of the inner walls of the two circular rings, a group of positioning blocks extends from the outer walls of the conical block and the conical block are respectively inserted into the side walls of the two circular rings.

Preferably, the driving piece includes concave type piece, concave type piece fixed connection is on the other end lateral wall of concave type board, and the fixed interlude of inner wall of concave type piece has the second motor, the output shaft fixedly connected with bull stick of second motor, the bull stick activity runs through in the lateral wall of concave type piece, and the one end that the second motor was kept away from to the bull stick and the lateral wall fixed connection of toper piece.

Preferably, elevating system includes two rectangular shells that are located concave type board rear, two the equal fixedly connected with callus on the sole of lower extreme of rectangular shell, one of them the inner wall fixedly connected with guide arm of rectangular shell, another the inner wall of rectangular shell rotates and is connected with the lead screw, the lead screw activity runs through in the upper end of rectangular shell, and the tip of lead screw is equipped with the driving medium, two be connected with the connecting piece between rectangular shell and the concave type board.

Preferably, the transmission part comprises a concave frame, a first motor is fixedly mounted at one end of the concave frame, the output shaft end of the first motor is fixedly connected with the top end of the screw rod, and one end, far away from the first motor, of the concave frame is fixedly connected to the outer wall of the front end of the rectangular shell.

Preferably, the connecting piece includes the fixed block of two symmetries, two the equal fixed connection of fixed block is in the rear end of concave template, and the common fixedly connected with backup pad in rear end of two fixed blocks, the equal fixedly connected with connecting block in rear end both sides of backup pad, one of them the connecting block sliding sleeve is established on the outer wall of guide arm, another the connecting block screw thread cup joints on the outer wall of lead screw, two the connecting block respectively with the inner wall sliding fit of two rectangular shells.

Preferably, a set of positioning grooves are formed in the side walls of the two circular rings, the number of the positioning grooves and the number of the positioning blocks in each set are four, and the four positioning blocks are in sliding fit with the four positioning grooves respectively.

Preferably, the upper end of the concave plate is rotatably connected with an L-shaped plate, the inner horizontal plane of the L-shaped plate is attached to the upper end of the concave plate, and the inner vertical plane of the L-shaped plate is attached to the front end of the concave plate.

Compared with the prior art, the utility model has the following beneficial effects: a projection curtain for assisting multimedia projector shows picture is convenient for descend from the eminence, and the staff can be very swift simple and convenient to the dismouting work of projection curtain simultaneously, is favorable to the staff to maintain the projection curtain.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an illustration of the conical block and the positioning block of the present invention;

FIG. 4 is a diagram illustrating a rotating shaft, a ring and a positioning groove of the present invention;

fig. 5 is a diagram showing the lifting mechanism of the present invention.

In the figure: 1. a foot pad; 2. a rectangular shell; 3. a curtain; 4. a concave plate; 5. an L-shaped plate; 6. a support plate; 7. a first motor; 8. a concave frame; 9. a second motor; 10. a concave block; 11. a rotating rod; 12. a conical block; 13. a rotating shaft; 14. a circular ring; 15. a conical block; 16. a connecting rod; 17. a connecting disc; 18. a spring; 19. positioning blocks; 20. positioning a groove; 21. a fixed block; 22. a guide bar; 23. a screw rod; 24. and (4) connecting the blocks.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings, which are appended hereto and detailed description.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1-5, the multimedia autonomous teaching aid comprises a concave plate 4, a rotating shaft 13 located in the concave plate 4, a curtain 3 connected to the rotating shaft 13, and rings 14 connected to two ends of the rotating shaft 13, wherein a connecting rod 16 is slidably inserted on a side wall of one end of the concave plate 4, and the inner side of the concave plate 4 is provided with a conical block 12 by a driving piece in a rotating way, a lifting mechanism is arranged at the rear part of the concave plate 4, one end of a connecting rod 16 is connected with a conical block 15 in a rotating way, and the other end of the connecting rod 16 is fixedly connected with a connecting disc 17, a spring 18 is fixedly connected between the conical block 15 and the inner side surface of the concave plate 4, the spring 18 is positioned at the outer side of the connecting rod 16, the outer walls of the conical block 15 and the conical block 12 are respectively attached at the edges of the inner walls of the two circular rings 14, and a set of positioning blocks 19 extend from the outer walls of the conical block 15 and the conical block 12, and the two sets of positioning blocks 19 are respectively inserted on the side walls of the two rings 14.

The driving piece includes concave type piece 10, concave type piece 10 fixed connection is on the other end lateral wall of concave type 4, and the fixed interlude of inner wall of concave type piece 10 has second motor 9, the output shaft fixedly connected with bull stick 11 of

second motor

9, 11 activities of bull stick run through in the lateral wall of concave type piece 10, and the one end of second motor 9 and the lateral wall fixed connection of toper piece 12 are kept away from to bull stick 11, be connected second motor 9 and external power source, thereby second motor 9 can order about bull stick 11 and drive toper piece 12 and rotate, concave type board 4 can support second motor 9.

Elevating system includes two rectangular shells 2 that are located 4 rear of concave template, the equal fixedly connected with callus on the sole 1 of lower extreme of two rectangular shells 2, the inner wall fixedly connected with guide arm 22 of one of them rectangular shell 2, the inner wall of another rectangular shell 2 rotates and is connected with lead screw 23, the activity of lead screw 23 runs through in the upper end of rectangular shell 2, and the tip of lead screw 23 is equipped with the driving medium, be connected with the connecting piece between two rectangular shells 2 and the concave template 4, through setting up the connecting piece, rectangular shell 2 and callus on the sole 1, can support concave template 4, thereby can support curtain 3, through setting up the driving medium, can order about lead screw 23 and rotate, the connecting piece can drive the vertical removal that carries on of concave template 4.

The driving medium includes concave type frame 8, and the one end fixed mounting of concave type frame 8 has first motor 7, the output shaft end of first motor 7 and the top fixed connection of lead screw 23, and the one end fixed connection that first motor 7 was kept away from to concave type frame 8 is connected first motor 7 and external power source on the front end outer wall of rectangular shell 2 to first motor 7 can order about lead screw 23 and rotate, and concave type frame 8 can support first motor 7.

The connecting piece comprises two symmetrical fixed blocks 21, the two fixed blocks 21 are both fixedly connected at the rear end of the concave plate 4, the back ends of the two fixing blocks 21 are fixedly connected with a supporting plate 6 together, both sides of the back end of the supporting plate 6 are fixedly connected with connecting blocks 24, one connecting block 24 is sleeved on the outer wall of the guide rod 22 in a sliding manner, the other connecting block 24 is sleeved on the outer wall of the screw rod 23 in a threaded manner, the two connecting blocks 24 are respectively attached to the inner walls of the two rectangular shells 2 in a sliding manner, when the screw rod 23 rotates, the connecting block 24 which is sleeved on the outer wall of the screw rod 23 by screw thread can slide downwards on the inner wall of one of the rectangular shells 2 and can drive the supporting plate 6 to move downwards, the supporting plate 6 can drive another connecting block 24 to slide downwards outside the guide rod 22 inside another rectangular shell 2, the two fixing blocks 21 connected between the concave plate 4 and the supporting plate 6 can drive the concave plate 4 to move downwards.

A set of constant head tank 20 has all been seted up on the lateral wall of two rings 14, and the quantity of every group constant head tank 20 is four with the quantity of every group locating piece 19, and four locating pieces 19 respectively with four constant head tanks 20 sliding fit, through setting up constant head tank 20, be convenient for locating piece 19 insert in the lateral wall of ring 14.

The upper end of concave template 4 is rotated and is connected with L template 5, and the inboard horizontal plane laminating of L template 5 is in the upper end of concave template 4, and the inboard perpendicular laminating of L template 5 is at the front end of concave template 4, and L template 5 can rotate in the upper end of concave template 4 to L template 5 can cover the curtain 3 that the inboard rolling of concave template 4 got up, avoids 3 surperficial ash droppings of curtain.

The working principle is as follows: the conical block 12, the ring 14, the rotating shaft 13, the conical block 15 and the positioning block 19 can be driven to rotate together by the driving piece, the curtain 3 connected on the rotating shaft 13 can be wound on the rotating shaft 13, when the curtain 3 is disassembled, the concave plate 4 is driven to move downwards and the L-shaped plate 5 is opened by the lifting mechanism, the connecting disc 17 is held and pulled outwards, the connecting rod 16 can drive the conical block 15 to move outwards, at the moment, the wound curtain 3 moves outwards along with the conical block 15 until the ring 14 attached to the conical block 12 leaves the conical block 12, the wound curtain 3 can be taken out simply, conveniently and quickly, as the conical block 15 moves outwards, the spring 18 between the conical block 15 and the inner side of the concave plate 4 is extruded, the conical block 15 can reset under the action force of the spring 18, when the curtain 3 is installed, the wound curtain 3 is held and kept in an inclined state, the ring 14 on one side is buckled on the outer wall of the conical block 15, and the side wall of the ring 14 is abutted to the positioning block 19 on the surface of the conical block 15, the rolling curtain 3 is used for pushing the cone-shaped block 15 to move outwards, the rolling curtain 3 is rotated to be kept in a horizontal state until the ring 14 on the other side of the rolling curtain corresponds to the cone-shaped block 12, the rolling curtain 3 is rotated at the moment, the positioning grooves 20 on the side walls of the rings 14 on two sides of the rolling curtain 3 respectively correspond to the positioning blocks 19 on the surfaces of the cone-shaped block 15 and the cone-shaped block 12, the positioning blocks 19 on the surfaces of the cone-shaped block 15 can be driven to be inserted into the positioning grooves 20 on the rings 14 under the action force of the springs 18, the rolling curtain 3 is inserted and moved towards the direction of the cone-shaped block 12, the positioning blocks 19 on the surfaces of the cone-shaped blocks 12 can be inserted into the positioning grooves 20 on the other rings 14, the curtain 3 can be successfully installed, the curtain 3 can be conveniently and quickly installed and disassembled, and convenient operation is favorable for maintenance of the curtain 3.

In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the appearances of the phrases "one embodiment," "some embodiments," "a specific embodiment," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment or example, but rather to the same embodiment or example. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multimedia is auxiliary teaching aid independently, includes concave template (4), is located pivot (13) of concave template (4), connects curtain (3) on pivot (13) and connects ring (14) at pivot (13) both ends, its characterized in that: a connecting rod (16) is inserted on the side wall of one end of the concave plate (4) in a sliding way, a conical block (12) is arranged on the inner side of the concave plate (4) in a rotating way through a driving piece, and a lifting mechanism is arranged behind the concave plate (4), one end of the connecting rod (16) is rotationally connected with a conical block (15), and the other end of the connecting rod (16) is fixedly connected with a connecting disc (17), a spring (18) is fixedly connected between the conical block (15) and the inner side surface of the concave plate (4), the spring (18) is positioned at the outer side of the connecting rod (16), the outer walls of the conical block (15) and the conical block (12) are respectively attached to the edges of the inner walls of the two circular rings (14), and a set of positioning blocks (19) extend from the outer walls of the conical block (15) and the conical block (12), and the two sets of positioning blocks (19) are respectively inserted into the side walls of the two circular rings (14).

2. The multimedia automatic auxiliary teaching aid of claim 1, characterized in that: the driving piece comprises a concave block (10), the concave block (10) is fixedly connected to the side wall of the other end of the concave plate (4), a second motor (9) is fixedly inserted into the inner wall of the concave block (10), the output shaft end of the second motor (9) is fixedly connected with a rotating rod (11), the rotating rod (11) movably penetrates through the side wall of the concave block (10), and one end of the second motor (9) and the side wall of the conical block (12) are fixedly connected through the rotating rod (11).

3. The multimedia automatic auxiliary teaching aid of claim 1, characterized in that: elevating system includes two rectangular shells (2) that are located concave template (4) rear, two the equal fixedly connected with callus on the sole (1) of lower extreme of rectangular shell (2), one of them the inner wall fixedly connected with guide arm (22) of rectangular shell (2), another the inner wall of rectangular shell (2) rotates and is connected with lead screw (23), lead screw (23) activity runs through in the upper end of rectangular shell (2), and the tip of lead screw (23) is equipped with the driving medium, two be connected with the connecting piece between rectangular shell (2) and concave template (4).

4. A multimedia self-contained auxiliary teaching aid according to claim 3, characterized in that: the transmission part comprises a concave frame (8), a first motor (7) is fixedly mounted at one end of the concave frame (8), the output shaft end of the first motor (7) is fixedly connected with the top end of the screw rod (23), and one end, far away from the first motor (7), of the concave frame (8) is fixedly connected to the outer wall of the front end of the rectangular shell (2).

5. A multimedia self-contained auxiliary teaching aid according to claim 3, characterized in that: the connecting piece includes fixed block (21), two of two symmetries the equal fixed connection of fixed block (21) is in the rear end of concave template (4), and the common fixedly connected with backup pad (6) in rear end of two fixed block (21), the equal fixedly connected with connecting block (24) in rear end both sides of backup pad (6), one of them connecting block (24) slip cap is established on the outer wall of guide arm (22), another connecting block (24) screw thread cup joints on the outer wall of lead screw (23), two connecting block (24) respectively with the inner wall sliding fit of two rectangular shells (2).

6. The multimedia automatic auxiliary teaching aid of claim 1, characterized in that: a set of positioning grooves (20) are formed in the side wall of each of the two circular rings (14), the number of the positioning grooves (20) in each set is four, and the positioning blocks (19) in each set are in sliding fit with the four positioning grooves (20).

7. The multimedia automatic auxiliary teaching aid of claim 1, characterized in that: the upper end of concave template (4) is rotated and is connected with L template (5), the inboard horizontal plane laminating of L template (5) is in the upper end of concave template (4), and the inboard perpendicular laminating of L template (5) is in the front end of concave template (4).