CN213815131U

CN213815131U - Demonstration device for colleges and universities education

Info

Publication number: CN213815131U
Application number: CN202023274297.0U
Authority: CN
Inventors: 张�浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-07-27
Anticipated expiration: 2030-12-29

Abstract

The utility model belongs to the technical field of the teaching equipment, especially, be a presentation device for colleges and universities' education, including carrying the thing board, carry two trapezoidal joint pieces of last fixed surface of thing board, two trapezoidal joint piece one side that is close to each other all seted up first circular recess, the upper surface of carrying the thing board has seted up the rectangular channel that the rear side set up for the opening, the top of carrying the thing board is equipped with the demonstration board, the lower surface rotation of demonstration board is connected with the rectangular channel. The utility model discloses a set up trapezoidal joint piece, first T shape inserted bar, first T shape slide rail, second T shape slide rail, first T shape slider and gyro wheel, it is not convenient for adjust according to actual need at teacher and student interactive in-process demonstration board's inclination to have solved, the student that can not satisfy different positions watches, current presentation device can not remove the back in time fixed simultaneously, and be not convenient for quick dismantlement between demonstration board and the support, make bulky, the problem of not being convenient for carry.

Description

Demonstration device for colleges and universities education

Technical Field

The utility model relates to a teaching equipment technical field specifically is a presentation device is used in colleges and universities' education.

Background

At present on the teaching classroom mr when with student's interactive answer, mostly through education presentation device and student interdynamic, present presentation device for colleges and universities education mostly comprises demonstration board and support, the inclination of demonstration board is not convenient for adjust according to actual need at teacher and student interactive in-process, the student that can not satisfy different position watches, present presentation device can not remove the back in time fixed simultaneously, and be not convenient for quick dismantlement between demonstration board and the support, make the volume too big, portable, can not satisfy practical demand, therefore we have proposed a presentation device for colleges and universities education and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a presentation device is used in colleges and universities 'education has solved the inclination of demonstration board at the interactive in-process of mr and student and is not convenient for adjust according to actual need, can not satisfy the student in different positions and watch, and current presentation device is timely fixed after can not removing simultaneously, and is not convenient for dismantle fast between demonstration board and the support for it is too big, the portable's problem not.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a demonstration device for education in colleges and universities comprises an object carrying plate, wherein two trapezoidal clamping blocks are fixedly connected to the upper surface of the object carrying plate, first circular grooves are formed in one sides, close to each other, of the two trapezoidal clamping blocks, a rectangular groove with an opening at the rear side is formed in the upper surface of the object carrying plate, a demonstration plate is arranged above the object carrying plate, the lower surface of the demonstration plate is rotatably connected with a rectangular plate, the outer side of the rectangular plate is in movable contact with the inner wall of the rectangular groove, two first fixing plates are fixedly connected to the upper surface of the rectangular plate, two first T-shaped inserting rods are arranged on the upper surface of the rectangular plate, the first fixing plates are slidably sleeved on the outer sides of the corresponding first T-shaped inserting rods, springs I are fixedly connected between the first T-shaped inserting rods and the first fixing plates, balls are embedded in the ends, far away from each other, of the two first T-shaped inserting rods, and the corresponding first circular grooves are clamped with each other, the ball is matched with the corresponding trapezoidal clamping block, the upper surface of the rectangular plate is fixedly connected with a first T-shaped slide rail, the upper surface of the first T-shaped slide rail is provided with a plurality of second circular grooves, the outer side of the first T-shaped slide rail is connected with a first T-shaped slide block in a sliding manner, the upper surface of the first T-shaped slide block is fixedly connected with a first rotating rod, the front side of the first rotating rod is provided with a second T-shaped insert rod, the outer side of the first rotating rod is fixedly connected with a second fixing plate, the outer side of the first rotating rod is fixedly connected with a positioning plate, the second fixing plate and the positioning plate are sleeved on the outer side of the second T-shaped insert rod in a sliding manner, a second spring is fixedly connected between the second T-shaped insert rod and the second fixing plate, the second T-shaped insert rod is clamped with one of the plurality of second circular grooves, and the lower surface of the demonstration plate is fixedly connected, and the outer side of the second T-shaped sliding rail is connected with a second T-shaped sliding block in a sliding manner, and the second T-shaped sliding block is rotationally connected with the first rotating rod.

As a preferred technical scheme of the utility model, carry two first pipes of fixed surface of thing board, the equal sliding connection of inner wall of first pipe has the second pipe, the bottom fixedly connected with antiskid ribbed tile of second pipe, carry two fixed blocks of fixed surface of thing board, one side fixedly connected with guide bar that two fixed blocks are close to each other, two T shape movable blocks of outside sliding connection of guide bar, one side that two fixed blocks are close to each other is rotated and is connected with the screw rod, the left end fixedly connected with knob of screw rod, the thread bush of T shape movable block establish in the outside of screw rod, two T shape movable block and antiskid ribbed tile between rotate and be connected with two second dwangs, carry four support columns of fixed surface of thing board, the lower surface rotation of support column is connected with the gyro wheel.

As an optimal technical scheme of the utility model, two one side that a fixed plate kept away from each other all seted up first circular port, the outside sliding connection of the lateral wall of first circular port and the first T shape inserted bar that corresponds.

As a preferred technical scheme of the utility model, the second circular port has been seted up to the upper surface of fixed plate two, the lateral wall of second circular port and the outside sliding connection of second T shape inserted bar, third circular hole has been seted up to the upper surface of locating plate, the lateral wall in third circular hole and the outside sliding connection of second T shape inserted bar.

As a preferred technical scheme of the utility model, the lower surface of first T shape slider is seted up the T type spout that front side and rear side are the opening setting, the inner wall of T type spout one and the outside sliding connection of first T shape slide rail.

As a preferred technical scheme of the utility model, the rear side of second T shape slider is opened and is equipped with T type spout two that top and bottom are the opening setting, the inner wall of T type spout two and the outside sliding connection of second T shape slide rail.

As a preferred technical scheme of the utility model, the fourth circular port has all been seted up to one side that two T shape movable blocks kept away from each other, the outside sliding connection of fourth circular port lateral wall and guide bar, and threaded hole has all been seted up to one side that two T shape movable blocks kept away from each other, the outside threaded connection of screw hole and screw rod, and the screw thread of two screw holes revolves to opposite, two the fixed block equal fixedly connected with bearing in one side that is close to each other, the inner circle of bearing and the outside fixed connection of screw rod.

(III) advantageous effects

Compared with the prior art, the utility model provides a presentation device is used in colleges and universities' education possesses following beneficial effect:

1. this kind of presentation device is used in colleges and universities' education, through first T shape slide rail, first T shape slider, first rotation pole, second T shape slide rail, the setting of second T shape slider and mutually supporting, upwards mention the second T shape inserted bar, with the circular groove separation of the second that corresponds, promote first T shape slider, make first T shape slider remove backward and drive first rotation pole and remove, first rotation pole removes and extrudes second T shape slider, make second T shape slide rail remove and rotate, thereby drive the demonstration board and remove and rotate, just adjust the inclination of demonstration board.

2. This kind of presentation device for colleges and universities' education, through the knob, the screw rod, T shape movable block, the second dwang, the setting and the mutually supporting of antiskid ribbed tile, rotate the knob, the rotation of knob drives the rotation of screw rod, the rotation of screw rod drives two T shape movable blocks and removes to the direction that is close to each other on the guide bar, the removal of T shape movable block drives the second dwang that corresponds and rotates, the rotation of second dwang produces the extrusion force to the antiskid ribbed tile, make the antiskid ribbed tile move down to with ground contact, thereby reach fixed effect.

Drawings

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

FIG. 2 is a rear view structural schematic of FIG. 1;

FIG. 3 is a schematic top view of the structure of FIG. 1;

FIG. 4 is an enlarged view of part A of FIG. 3;

fig. 5 is an enlarged schematic view of part B of fig. 3.

In the figure: 1. a fixed block; 2. a T-shaped moving block; 3. a first circular tube; 4. a second circular tube; 5. a second rotating lever; 6. a roller; 7. an anti-skid plate; 8. a loading plate; 9. a screw; 10. a knob; 11. a demonstration board; 12. a first T-shaped slide rail; 13. a first T-shaped slider; 14. a second T-shaped slide rail; 15. a second T-shaped slider; 16. a first rotating lever; 17. a second T-shaped insert rod; 18. a second fixing plate; 19. positioning a plate; 20. a trapezoidal clamping block; 21. a support pillar; 22. a guide bar; 23. a ball bearing; 24. a first T-shaped insert rod; 25. a second fixing plate; 26. a first spring; 27. a second spring; 28. a rectangular plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: a demonstration device for college education comprises an object carrying plate 8, wherein two trapezoidal clamping blocks 20 are fixedly connected to the upper surface of the object carrying plate 8, first circular grooves are formed in the mutually close sides of the two trapezoidal clamping blocks 20, a rectangular groove with an opening at the rear side is formed in the upper surface of the object carrying plate 8, a demonstration plate 11 is arranged above the object carrying plate 8, a rectangular plate 28 is rotatably connected to the lower surface of the demonstration plate 11, the outer side of the rectangular plate 28 is in movable contact with the inner wall of the rectangular groove, two first fixing plates 25 are fixedly connected to the upper surface of the rectangular plate 28, two first T-shaped inserting rods 24 are arranged on the upper surface of the rectangular plate 28, the first fixing plates 25 are slidably sleeved on the outer sides of the corresponding first T-shaped inserting rods 24, springs 26 are fixedly connected between the first T-shaped inserting rods 24 and the first fixing plates 25, and balls 23 are embedded in the mutually far ends of the two first T-shaped inserting rods 24, the first T-shaped inserting rod 24 is clamped with the corresponding first circular groove, the ball 23 is matched with the corresponding trapezoidal clamping block 20, the upper surface of the rectangular plate 28 is fixedly connected with the first T-shaped slide rail 12, the upper surface of the first T-shaped slide rail 12 is provided with a plurality of second circular grooves, the outer side of the first T-shaped slide rail 12 is slidably connected with the first T-shaped slide block 13, the upper surface of the first T-shaped slide block 13 is fixedly connected with the first rotating rod 16, the front side of the first rotating rod 16 is provided with the second T-shaped inserting rod 17, the outer side of the first rotating rod 16 is fixedly connected with the fixed plate second 18, the outer side of the first rotating rod 16 is fixedly connected with the positioning plate 19, the fixed plate second 18 and the positioning plate 19 are slidably sleeved on the outer side of the second T-shaped inserting rod 17, the spring second 27 is fixedly connected between the second T-shaped inserting rod 17 and the fixed plate second 18, the second T-shaped inserting rod 17 is clamped with one of the, the lower surface of demonstration board 11 is fixedly connected with second T shape slide rail 14, and the outside sliding connection of second T shape slide rail 14 has second T shape slider 15, and second T shape slider 15 rotates with first pivot pole 16 and is connected.

In this embodiment, through trapezoidal joint piece 20, the setting of first T shape inserted bar 24 and mutually support for rectangular plate 28 is fixed mutually with year thing board 8, through the setting of first T shape slide rail 12, first T shape slider 13, first rotation pole 16, second T shape slide rail 14, second T shape slider 15 and mutually support, makes demonstration board 11 can remove and rotate, thereby can adjust the inclination of demonstration board 11.

Specifically, carry two first pipes 3 of fixed surface of thing board 8, the equal sliding connection of inner wall of first pipe 3 has second pipe 4, the bottom fixedly connected with antiskid ribbed tile 7 of second pipe 4, carry two fixed block 1 of fixed surface of thing board 8, one side fixedly connected with guide bar 22 that two fixed block 1 are close to each other, two T shape movable blocks 2 of outside sliding connection of guide bar 22, one side rotation that two fixed block 1 are close to each other is connected with screw rod 9, the left end fixedly connected with knob 10 of screw rod 9, the threaded bush of T shape movable block 2 is established in the outside of screw rod 9, it is connected with two second dwang 5 to rotate between two T shape movable blocks 2 and the antiskid ribbed tile 7, carry four support columns 21 of fixed surface of thing board 8, the lower surface rotation of support column 21 is connected with gyro wheel 6.

In this embodiment, the antiskid plate 7, the screw 9, the T-shaped moving block 2 and the second rotating rod 5 are arranged and matched with each other, so that the device can be fixed in time after being moved.

Specifically, a first circular hole is formed in one side, away from each other, of the two first fixing plates 25, and the side wall of the first circular hole is connected with the outer side of the corresponding first T-shaped inserting rod 24 in a sliding mode.

In this embodiment, the first circular hole is provided to perform a positioning function, so that the first T-shaped insertion rod 24 does not deviate from the position.

Specifically, a second circular hole is formed in the upper surface of the second fixing plate 18, the side wall of the second circular hole is connected with the outer side of the second T-shaped inserting rod 17 in a sliding mode, a third circular hole is formed in the upper surface of the positioning plate 19, and the side wall of the third circular hole is connected with the outer side of the second T-shaped inserting rod 17 in a sliding mode.

In this embodiment, the second circular hole and the third circular hole are provided, so that the positioning function is achieved, and the second T-shaped insertion rod 17 is free from position deviation.

Specifically, the lower surface of the first T-shaped sliding block 13 is provided with a first T-shaped sliding groove, the front side and the rear side of which are both provided with openings, and the inner wall of the first T-shaped sliding groove is connected with the outer side of the first T-shaped sliding rail 12 in a sliding manner.

In this embodiment, the first T-shaped sliding block 13 can slide on the first T-shaped sliding rail 12 by the arrangement of the first T-shaped sliding slot.

Specifically, a second T-shaped sliding groove with the top and the bottom both being open is formed in the rear side of the second T-shaped sliding block 15, and the inner wall of the second T-shaped sliding groove is connected with the outer side of the second T-shaped sliding rail 14 in a sliding manner.

In this embodiment, the second T-shaped sliding block 15 can slide on the second T-shaped sliding rail 14 by the arrangement of the second T-shaped sliding slot.

Specifically, a fourth circular hole is formed in one side, away from each other, of each of the two T-shaped moving blocks 2, the side wall of the fourth circular hole is connected with the outer side of the guide rod 22 in a sliding mode, threaded holes are formed in one side, away from each other, of each of the two T-shaped moving blocks 2, the threaded holes are connected with the outer side of the screw rod 9 in a threaded mode, the thread turning directions of the two threaded holes are opposite, one side, close to each other, of each of the two fixed blocks 1 is fixedly connected with a bearing, and the inner ring of the bearing is fixedly connected with the outer side of the screw rod 9.

In this embodiment, through the setting of fourth circular port, played the function of location, made the phenomenon that the position skew can not appear in T shape movable block 2, through the setting of screw hole for T shape movable block 2 can remove, through the setting of bearing, makes screw rod 9 can rotate.

The utility model discloses a theory of operation and use flow: when the inclination angle of the demonstration board 11 needs to be adjusted, the second T-shaped insertion rod 17 is lifted upwards, the second T-shaped insertion rod 17 stretches the second spring 27 in the process of moving upwards, when the second T-shaped insertion rod 17 is separated from the second circular groove, the first T-shaped sliding block 13 is pushed, the first T-shaped sliding block 13 moves backwards on the first T-shaped sliding rail 12, the first T-shaped sliding block 13 moves to drive the first rotating rod 16 to move, the first rotating rod 16 moves to extrude the second T-shaped sliding block 15, the second T-shaped sliding block 15 slides on the second T-shaped sliding rail 14 to generate extrusion force, at the moment, the second T-shaped sliding rail 14 moves and rotates, and the second T-shaped sliding rail 14 moves and rotates to drive the demonstration board 11 to move and rotate, so that the inclination angle of the demonstration board 11 can be adjusted;

when the demonstration board 11 needs to be separated from the carrying board 8, the first T-shaped insertion rod 24 is pulled, the corresponding spring I26 is stretched in the moving process of the first T-shaped insertion rod 24, the first T-shaped insertion rod 24 is separated from the corresponding first circular groove, the demonstration board 11 is moved backwards at the moment, and the demonstration board 11 drives the rectangular board 28 to move backwards, so that the rectangular board 28 is moved out of the rectangular groove; when the demonstration plate 11 needs to be installed on the carrying plate 8, the rectangular plate 28 is aligned to the rectangular groove and moves forwards, the rectangular block moves to drive the trapezoidal clamping block 20 to move, when the balls 23 contact with the inclined surface of the trapezoidal clamping block 20, the downward movement is continued, so that the inclined surface of the trapezoidal clamping block 20 generates extrusion force on the corresponding balls 23, under the action of the extrusion force, the balls 23 drive the corresponding first T-shaped insertion rods 24 to move in the mutually approaching direction, the first springs 26 are stretched in the process that the first T-shaped insertion rods 24 move in the mutually approaching direction, when the first T-shaped insertion rods 24 are aligned with the first circular groove, the first springs 26 in the stretching state reset at the moment, and the elastic force of the first springs 26 drive the corresponding first T-shaped insertion rods 24 to be clamped into the first circular groove, so that the demonstration plate 11 is installed on the carrying plate 8;

the promotion carries thing board 8, it drives the support column 21 and removes to carry thing board 8, support column 21 removes and drives gyro wheel 6 and roll subaerial, when removing suitable position and need fixing, rotate knob 10, the rotation of knob 10 drives the rotation of screw rod 9, the rotation of screw rod 9 drives two T shape movable blocks 2 and removes to the direction that is close to each other, the removal of T shape movable block 2 drives corresponding second dwang 5 and rotates, the rotation of second dwang 5 produces the extrusion force to antiskid ribbed tile 7, make antiskid ribbed tile 7 move down to with ground contact, thereby reach fixed effect.

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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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. A presentation device for college education, comprising an object carrying plate (8), characterized in that: the upper surface of the carrying plate (8) is fixedly connected with two trapezoidal clamping blocks (20), one side of each of the two trapezoidal clamping blocks (20) close to each other is provided with a first circular groove, the upper surface of the carrying plate (8) is provided with a rectangular groove with the rear side arranged as an opening, a demonstration plate (11) is arranged above the carrying plate (8), the lower surface of the demonstration plate (11) is rotatably connected with a rectangular plate (28), the outer side of the rectangular plate (28) is in movable contact with the inner wall of the rectangular groove, the upper surface of the rectangular plate (28) is fixedly connected with two first fixing plates (25), the upper surface of the rectangular plate (28) is provided with two first T-shaped inserting rods (24), the first fixing plates (25) are slidably sleeved on the outer sides of the corresponding first T-shaped inserting rods (24), and springs (26) are fixedly connected between the first T-shaped inserting rods (24) and the first fixing plates (25), two ball bearings (23) are embedded at the end, far away from each other, of each first T-shaped insertion rod (24), the first T-shaped insertion rods (24) are clamped with corresponding first circular grooves, the ball bearings (23) are matched with corresponding trapezoidal clamping blocks (20), a first T-shaped sliding rail (12) is fixedly connected to the upper surface of the rectangular plate (28), a plurality of second circular grooves are formed in the upper surface of the first T-shaped sliding rail (12), a first T-shaped sliding block (13) is slidably connected to the outer side of the first T-shaped sliding rail (12), a first rotating rod (16) is fixedly connected to the upper surface of the first T-shaped sliding block (13), a second T-shaped insertion rod (17) is arranged on the front side of the first rotating rod (16), a second fixing plate (18) is fixedly connected to the outer side of the first rotating rod (16), and a positioning plate (19) is fixedly connected to the outer side of the first rotating rod (16), fixed plate two (18) and locating plate (19) slip cap are established in the outside of second T shape inserted bar (17), fixedly connected with spring two (27) between second T shape inserted bar (17) and fixed plate two (18), second T shape inserted bar (17) and the circular groove looks joint of a second in a plurality of second circular grooves, the lower fixed surface of demonstration board (11) is connected with second T shape slide rail (14), the outside sliding connection of second T shape slide rail (14) has second T shape slider (15), second T shape slider (15) rotate with first pivot pole (16) and are connected.

2. A presentation apparatus for education in colleges and universities, according to claim 1, wherein: the lower surface of the carrying plate (8) is fixedly connected with two first round tubes (3), the inner walls of the first round tubes (3) are connected with second round tubes (4) in a sliding manner, the bottom of each second round tube (4) is fixedly connected with an antiskid plate (7), the lower surface of the carrying plate (8) is fixedly connected with two fixed blocks (1), one sides of the two fixed blocks (1) close to each other are fixedly connected with a guide rod (22), the outer sides of the guide rods (22) are connected with two T-shaped movable blocks (2) in a sliding manner, one sides of the two fixed blocks (1) close to each other are rotatably connected with a screw rod (9), the left end of the screw rod (9) is fixedly connected with a knob (10), the thread sleeves of the T-shaped movable blocks (2) are arranged on the outer sides of the screw rod (9), and two second rotating rods (5) are rotatably connected between the two T-shaped movable blocks (2) and the antiskid plates (7), the lower surface of the object carrying plate (8) is fixedly connected with four supporting columns (21), and the lower surfaces of the supporting columns (21) are rotatably connected with rollers (6).

3. A presentation apparatus for education in colleges and universities, according to claim 1, wherein: two fixed plate one (25) one side of keeping away from each other all seted up first circular port, the lateral wall of first circular port and the outside sliding connection of the first T shape inserted bar (24) that corresponds.

4. A presentation apparatus for education in colleges and universities, according to claim 1, wherein: a second circular hole is formed in the upper surface of the second fixing plate (18), the side wall of the second circular hole is connected with the outer side of the second T-shaped inserting rod (17) in a sliding mode, a third circular hole is formed in the upper surface of the positioning plate (19), and the side wall of the third circular hole is connected with the outer side of the second T-shaped inserting rod (17) in a sliding mode.

5. A presentation apparatus for education in colleges and universities, according to claim 1, wherein: the lower surface of the first T-shaped sliding block (13) is provided with a first T-shaped sliding groove with the front side and the rear side both provided with openings, and the inner wall of the first T-shaped sliding groove is connected with the outer side of the first T-shaped sliding rail (12) in a sliding mode.

6. A presentation apparatus for education in colleges and universities, according to claim 1, wherein: the rear side of the second T-shaped sliding block (15) is provided with a second T-shaped sliding groove, the top and the bottom of the second T-shaped sliding groove are both provided with openings, and the inner wall of the second T-shaped sliding groove is connected with the outer side of the second T-shaped sliding rail (14) in a sliding mode.

7. A presentation apparatus for education in colleges and universities, according to claim 2, wherein: the two T-shaped moving blocks (2) are respectively provided with a fourth circular hole at one side far away from each other, the side wall of the fourth circular hole is connected with the outer side of the guide rod (22) in a sliding mode, threaded holes are respectively formed at one side far away from each other of the two T-shaped moving blocks (2), the threaded holes are in threaded connection with the outer side of the screw rod (9), the thread turning directions of the two threaded holes are opposite, one side, close to each other, of the two fixed blocks (1) is fixedly connected with a bearing, and the inner ring of the bearing is fixedly connected with the outer side of the screw rod (9).