CN216053349U

CN216053349U - A explanation device for education and teaching

Info

Publication number: CN216053349U
Application number: CN202121177359.8U
Authority: CN
Inventors: 孙丽雪
Original assignee: Shandong Vocational College of Industry
Current assignee: Shandong Vocational College of Industry
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-03-15
Anticipated expiration: 2031-05-28

Abstract

The utility model belongs to the technical field of education and teaching, and particularly relates to an explanation device for education and teaching, which comprises a rectangular box, wherein a rectangular cavity is formed in the rectangular box, a rotating shaft is rotatably connected between the left inner wall and the right inner wall of the rectangular cavity, a projection cloth body is fixedly wound on the outer side of the rotating shaft, the left end of the rotating shaft extends out of the rectangular box, a circular block is fixedly connected to the outer side of the rotating shaft, a plurality of first rectangular grooves are formed in the outer side of the circular block, a square plate is fixedly connected to the left side of the rectangular box, a T-shaped rod is arranged on the left side of the rectangular box, and the T-shaped rod is clamped with one of the first rectangular grooves. According to the utility model, through the matching of the rotating shaft, the circular block, the first rectangular groove, the first writing board and the second writing board, the problems that when teaching is carried out outdoors or in a training room and the like, explanation is inconvenient to carry out by projection and the writing and explanation are inconvenient to adjust the writing space when the writing and explanation are carried out on the writing board are solved.

Description

A explanation device for education and teaching

Technical Field

The utility model relates to the technical field of education and teaching, in particular to an explanation device for education and teaching.

Background

Education is the purposeful and organized educational development of the mental development of educated persons, which uses the existing experience and learning to develop people, explains various phenomena, problems or behaviors for people, and uses the growth ability experience, which is basically realized by the cognitive treatment of a relatively mature or rational thinking of people, so that things can approach the most basic existence of things, and people slowly feel a sense to understand a thing to a cognitive understanding state and form a relatively perfect or rational self-conscious thinking.

There are the following problems:

1. when teaching is carried out outdoors or in training rooms and the like, due to the limitation of places, a blackboard similar to that in a school classroom cannot be adopted to explain students under general conditions, and the students cannot conveniently explain by projection.

2. Present supplementary explanation mode that exists adopts the lecturer to write the explanation on the clipboard mostly, is not convenient for adjust and writes the space, very big reduction education and teaching efficiency, brings very big inconvenience for the use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the disadvantages of the prior art, the present invention provides an explanation device for education and teaching, which solves the problems that it is inconvenient to use projection for explanation and it is inconvenient to adjust a writing space when performing writing explanation on a writing board when teaching outdoors or in a training room, etc.

(II) technical scheme

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides an explanation device for education and teaching, includes the rectangle case, the rectangle cavity has been seted up on the rectangle case, rotates between the left side inner wall of rectangle cavity and the right side inner wall and is connected with the axis of rotation, the fixed winding in the outside of axis of rotation has the projection cloth body, the left end of axis of rotation extends to outside the rectangle case, the outside fixedly connected with circular block of axis of rotation, a plurality of first rectangular channels have been seted up in the outside of circular block, the left fixedly connected with square plate of rectangle case, the left of rectangle case is equipped with T shape pole, and a first rectangular channel in T shape pole and a plurality of first rectangular channels clamps mutually, and the outside at T shape pole is established to square plate sliding sleeve, fixedly connected with spring between the lower surface of square plate and the T shape pole, and the outside at T shape pole is established to spring sliding sleeve.

Further, two hinges of the equal fixedly connected with in left side and the right side of rectangle case, the place ahead of rectangle case is equipped with two rectangular plates, and the rectangular plate rotates with the rectangle case through the hinge that corresponds to be connected, the first board of writing of the front side fixedly connected with of rectangular plate, the rear side fixedly connected with second of rectangular plate board write the board, the second rectangular channel has been seted up to the front side of rectangle case, and the rear side inner wall fixedly connected with third of second rectangular channel writes the board.

Further, the one end fixedly connected with horizontal pole of projection cloth body, the lower fixed surface of horizontal pole is connected with two return blocks, and the bottom inner wall fixedly connected with two U-shaped blocks of second rectangular channel.

Furthermore, a bottom plate is arranged below the rectangular box, the upper surface of the bottom plate is fixedly connected with a U-shaped frame and two electric telescopic rods, the end part of an output shaft of each electric telescopic rod is fixedly connected with the rectangular box, and a baffle is fixedly connected between the inner wall of the top of the U-shaped frame and the bottom plate.

Furthermore, a crank is fixedly connected to the left end of the rotating shaft.

Furthermore, the lower surface of the bottom plate is rotatably connected with four universal wheels.

(III) advantageous effects

Compared with the prior art, the utility model provides an explanation device for education and teaching, which has the following beneficial effects:

1. according to the projection cloth fixing device, the rotating shaft, the round block, the first rectangular groove, the T-shaped rod and the crank are matched, the crank drives the rotating shaft to rotate, so that the projection cloth body is folded and unfolded, and the T-shaped rod is matched with the first rectangular groove, so that the rotating shaft is fixed.

2. According to the utility model, the first writing board, the second writing board, the third writing board, the electric telescopic rod and the direction wheel are matched, the first writing board, the second writing board and the third writing board are used for increasing the writing space, teachers with different heights can write through the electric telescopic rod, and the direction wheel is used for facilitating movement.

Drawings

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

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

FIG. 3 is a schematic rear perspective view of the present invention;

FIG. 4 is an enlarged perspective view of portion A of FIG. 2;

fig. 5 is an enlarged perspective view of a portion B in fig. 3.

In the figure: 1. a rectangular box; 2. a rotating shaft; 3. a projection cloth body; 4. a circular block; 5. a first rectangular groove; 6. a square plate; 7. a T-shaped rod; 8. a spring; 9. a hinge; 10. a rectangular plate; 11. a first writing pad; 12. a second writing board; 13. a third writing board; 14. a cross bar; 15. a returning block; 16. a U-shaped block; 17. a base plate; 18. an electric telescopic rod; 19. a U-shaped frame; 20. a baffle plate; 21. a crank; 22. a universal wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 5, an embodiment of the present invention proposes: an explanation device for education and teaching comprises a rectangular box 1, wherein a rectangular cavity is formed in the rectangular box 1, a rotating shaft 2 is rotatably connected between the left inner wall and the right inner wall of the rectangular cavity, a projection cloth body 3 is fixedly wound on the outer side of the rotating shaft 2, the left end of the rotating shaft 2 extends out of the rectangular box 1, a round block 4 is fixedly connected to the outer side of the rotating shaft 2, a plurality of first rectangular grooves 5 are formed in the outer side of the round block 4, a square plate 6 is fixedly connected to the left side of the rectangular box 1, a T-shaped rod 7 is arranged on the left side of the rectangular box 1, the T-shaped rod 7 is clamped with one first rectangular groove 5 of the plurality of first rectangular grooves 5, the square plate 6 is slidably sleeved on the outer side of the T-shaped rod 7, a spring 8 is fixedly connected between the lower surface of the square plate 6 and the T-shaped rod 7, the spring 8 is slidably sleeved on the outer side of the T-shaped rod 7, when the projection cloth body 3 needs to be folded, move T shape pole 7 downwards and make T shape pole 7 and the first rectangular channel 5 phase separation in a plurality of first rectangular channels 5 and compress spring 8, alright drive axis of rotation 2 through crank 21 and make projection cloth body 3 receive and release, when receiving and releasing the completion back, relax the pulling force to T shape pole 7, spring 8 resets and makes T shape pole 7 clamp mutually with another first rectangular channel 5 in a plurality of first rectangular channels 5, alright fixed axis of rotation 2.

As shown in fig. 1, in some embodiments, two hinges 9 are fixedly connected to both left and right sides of the rectangular box 1, two rectangular plates 10 are disposed in front of the rectangular box 1, the rectangular plates 10 are rotatably connected to the rectangular box 1 through the corresponding hinges 9, a first writing plate 11 is fixedly connected to a front side of the rectangular plates 10, a second writing plate 12 is fixedly connected to a rear side of the rectangular plates 10, a second rectangular groove is formed in the front side of the rectangular box 1, a third writing plate 13 is fixedly connected to a rear inner wall of the second rectangular groove, and a writing space is increased by the first writing plate 11, the second writing plate 12 and the third writing plate 13.

As shown in fig. 2 and 4, in some embodiments, a cross bar 14 is fixedly connected to one end of the projection cloth body 3, two U-shaped blocks 15 are fixedly connected to the lower surface of the cross bar 14, and two U-shaped blocks 16 are fixedly connected to the inner wall of the bottom of the second rectangular groove, so that when the projection cloth body 3 is put down, the U-shaped blocks 16 corresponding to the U-shaped blocks 15 are clamped, so that the projection cloth body 3 does not flutter.

As shown in fig. 1 and 2, in some embodiments, a bottom plate 17 is arranged below the rectangular box 1, a U-shaped frame 19 and two electric telescopic rods 18 are fixedly connected to the upper surface of the bottom plate 17, teachers with different heights can use and write conveniently through the electric telescopic rods 18, the end portion of an output shaft of each electric telescopic rod 18 is fixedly connected with the rectangular box 1, and a baffle plate 20 is fixedly connected between the top inner wall of the U-shaped frame 19 and the bottom plate 17.

As shown in fig. 4 and 5, in some embodiments, a crank 21 is fixedly connected to the left end of the rotating shaft 2, and the rotating shaft 2 is conveniently rotated by the crank 21 to store and release the projection cloth body 3.

In some embodiments, as shown in fig. 2, four universal wheels 22 are rotatably connected to the lower surface of the bottom plate 17, and the universal wheels 22 are used for facilitating the movement.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An explanation device for educational teaching, comprising a rectangular box (1), characterized in that: the projection cloth comprises a rectangular box (1), a rotating shaft (2) is rotatably connected between the left inner wall and the right inner wall of the rectangular cavity, a projection cloth body (3) is fixedly wound on the outer side of the rotating shaft (2), the left end of the rotating shaft (2) extends out of the rectangular box (1), a round block (4) is fixedly connected to the outer side of the rotating shaft (2), a plurality of first rectangular grooves (5) are formed in the outer side of the round block (4), a square plate (6) is fixedly connected to the left side of the rectangular box (1), a T-shaped rod (7) is arranged on the left side of the rectangular box (1), the T-shaped rod (7) is clamped with one first rectangular groove (5) of the plurality of first rectangular grooves (5), the square plate (6) is slidably sleeved on the outer side of the T-shaped rod (7), and a spring (8) is fixedly connected between the lower surface of the square plate (6) and the T-shaped rod (7), the spring (8) is sleeved outside the T-shaped rod (7) in a sliding manner.

2. An explanation device for educational instruction according to claim 1, characterized in that: the utility model discloses a writing board, including rectangle case (1), the equal two hinges of fixedly connected with in left side and right side (9) of rectangle case (1), the place ahead of rectangle case (1) is equipped with two rectangular plate (10), and rectangular plate (10) rotate with rectangle case (1) through hinge (9) that correspond and are connected, the first writing board of front side fixedly connected with (11) of rectangular plate (10), rear side fixedly connected with second writing board (12) of rectangular plate (10), the front side of rectangle case (1) is opened and is equipped with the second rectangular channel, and rear side inner wall fixedly connected with third writing board (13) of second rectangular channel.

3. An explanation device for educational instruction according to claim 1, characterized in that: one end fixedly connected with horizontal pole (14) of projection cloth body (3), the lower surface fixedly connected with of horizontal pole (14) returns piece (15), and the bottom inner wall fixedly connected with of second rectangular channel has two U-shaped piece (16).

4. An explanation device for educational instruction according to claim 1, characterized in that: the utility model discloses a safe electric power box, including rectangle case (1), the below of rectangle case (1) is equipped with bottom plate (17), the last fixed surface of bottom plate (17) is connected with U-shaped frame (19) and two electric telescopic handle (18), the output shaft tip and rectangle case (1) fixed connection of electric telescopic handle (18), fixedly connected with baffle (20) between the top inner wall of U-shaped frame (19) and bottom plate (17).

5. An explanation device for educational instruction according to claim 1, characterized in that: and a crank (21) is fixedly connected to the left end of the rotating shaft (2).

6. An explanation device for educational instruction according to claim 4, wherein: the lower surface of the bottom plate (17) is rotatably connected with four universal wheels (22).