CN211519057U

CN211519057U - Teaching aid

Info

Publication number: CN211519057U
Application number: CN201922429399.6U
Authority: CN
Inventors: 刘勇; 王斌; 王伟; 梁卫萍
Original assignee: Neijiang Normal University
Current assignee: Neijiang Normal University
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-18
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a teaching aid, which comprises a wall surface and a first fixed block, wherein one side of the wall surface is fixedly connected with a motor, a first lead screw is welded on an output shaft at the bottom of the motor, the outer side wall of the first lead screw is fixedly connected with an active wheel, the outer side wall of the active wheel is provided with a belt, and the active wheel is connected with a driven wheel through belt transmission; drive first lead screw and second lead screw through the motor and rotate, because the spiral direction of first lead screw and second lead screw external screw thread is mutual reverse setting, therefore, reciprocating of relative direction can be done to threaded connection's first slider and second slider with it, and then make first blackboard and second blackboard relative movement, make first blackboard and second blackboard can be in lower regional alternate use, make things convenient for teaching personnel's work, automatic operation, time saving and labor saving, the third slider can be during pushing the box with the dust that gathers in the U template simultaneously, convenient clearance.

Description

Teaching aid

Technical Field

The utility model relates to a teaching aid technical field specifically is a teaching aid for creating a business class.

Background

Teaching aids are generally a general term for various instruments used by students to understand teaching contents intuitively and vividly and for teaching teachers to use. The teaching aid is called for short. The teaching aid can improve the learning interest of students, enrich the perceptual knowledge, help to form clear concepts and develop the observation ability and thinking ability of the students. Generally, the teaching aid is divided into a common teaching aid, a special teaching aid and a child teaching aid. In the teaching aid, the blackboard is the most important one, and the blackboard is not particularly a black board, so that the blackboard is a plane which can be repeatedly written by chalk in the traditional sense, and the board is hard and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Mostly black, greenish black, white or beige. The teaching of the creation class can not leave the use of the blackboard. The blackboard that current entrepreneurship class used is mostly single block, and highly higher, and the teaching personnel need write the blackboard and fill up whole blackboard, consequently higher regional writing blackboard meeting on the blackboard can be more difficult, on the other hand, when writing blackboard with the chalk, the chalk dust that falls and the chalk of rupture are gathered in the dust groove, and is difficult to the clean up, for this reason, provides a teaching aid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a teaching aid 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 teaching aid comprises a wall surface and a first fixed block, wherein a motor is fixedly connected to one side of the wall surface, a first lead screw is welded to an output shaft at the bottom of the motor, a driving wheel is fixedly connected to the outer side wall of the first lead screw, a belt is arranged on the outer side wall of the driving wheel, the driving wheel is connected with a driven wheel through belt transmission, two second sliders are connected to the outer side wall of the first lead screw through external threads, a second lead screw is fixedly connected to the bottom of the driven wheel, two first sliders are connected to the outer side wall of the second lead screw through external threads, a second connecting plate is fixedly connected to one side of the first slider, a first support is fixedly connected to one side of the second connecting plate, which is far away from the first slider, a first blackboard is fixedly connected to the inner side wall of the first support, and a first connecting plate is fixedly connected to one, one side of the first connecting plate, which is far away from the second sliding block, is fixedly connected with a second support, the inner side wall of the second support is fixedly connected with a second blackboard, and the spiral directions of the external threads of the first screw rod and the second screw rod are arranged in opposite directions.

As further preferable in the present technical solution: the utility model discloses a lead screw, including first lead screw, first support, second, first link board, second link board, first ring body of one side fixedly connected with quantity of second lead screw is two, the inside wall sliding connection of first ring body has the second litter, the second support is kept away from the first link board that one side fixedly connected with quantity of first lead screw is two, first one side fixedly connected with second ring body respectively of linking the board, the inside wall sliding connection of second ring body has first litter, the equal fixedly connected with second fixed block in top of first litter and second litter, the equal fixedly connected with third fixed block in bottom of first litter and second litter, one side of second fixed block and third fixed block all with wall fixed connection.

As further preferable in the present technical solution: the utility model discloses a lead screw, including first lead screw, first bearing, the lateral wall fixedly connected with quantity of first lead screw is two second bearings, the lateral wall fixedly connected with quantity of second lead screw is two first bearings, the equal fixedly connected with support frame in outer lane of first bearing and second bearing, the one end and the wall fixed connection of support frame, the second spout that the quantity was two is seted up of first fixed block, one side and the wall fixed connection of first fixed block.

As further preferable in the present technical solution: one side fixedly connected with switch of wall, the electrical property output of switch and the electrical property input electric connection of motor.

As further preferable in the present technical solution: one side fixedly connected with U template of wall, first spout has been seted up to one side of U template, the inside of U template is provided with the third slider, one side fixedly connected with pillar of third slider, the one end sliding connection of pillar is in the inside of first spout.

As further preferable in the present technical solution: an L-shaped groove is formed in one side of the U-shaped plate, an L-shaped supporting column is connected to the inside of the L-shaped groove in a sliding mode, and a box body is fixedly connected to one side of the L-shaped supporting column.

Compared with the prior art, the beneficial effects of the utility model are that: drive first lead screw and second lead screw through the motor and rotate, because the spiral direction of first lead screw and second lead screw external screw thread is mutual reverse setting, therefore, reciprocating of relative direction can be done to threaded connection's first slider and second slider with it, and then make first blackboard and second blackboard relative movement, make first blackboard and second blackboard can be in lower regional alternate use, make things convenient for teaching personnel's work, automatic operation, time saving and labor saving, the third slider can be during pushing the box with the dust that gathers in the U template simultaneously, convenient clearance.

Drawings

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

fig. 2 is a schematic top view of the driving wheel of the present invention;

fig. 3 is a schematic side view of the U-shaped board of the present invention;

fig. 4 is a schematic side view of the motor of the present invention.

In the figure: 1. a wall surface; 2. a driven wheel; 3. a belt; 4. a first bearing; 5. a first fixed block; 6. a first bracket; 7. a first blackboard; 8. a second bracket; 9. a second blackboard; 10. a first ring body; 11. a second fixed block; 12. a motor; 13. a driving wheel; 14. a second bearing; 15. a first lead screw; 16. a second lead screw; 17. a first slider; 18. a first connecting plate; 19. a second slider; 20. a box body; 21. an L-shaped strut; 22. an L-shaped groove; 23. a U-shaped plate; 24. a third slider; 25. a pillar; 26. a third fixed block; 27. a second ring body; 28. a first slide bar; 29. a second slide bar; 30. a support frame; 31. a first chute; 32. a second chute; 33. a switch; 34. and a second connecting 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 work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a teaching aid comprises a wall surface 1 and a first fixed block 5, wherein a motor 12 is fixedly connected to one side of the wall surface 1, a first lead screw 15 is welded to the bottom output shaft of the motor 12, a driving wheel 13 is fixedly connected to the outer side wall of the first lead screw 15, a belt 3 is arranged on the outer side wall of the driving wheel 13, the driving wheel 13 is connected with a driven wheel 2 through the transmission of the belt 3, two second sliders 19 are connected to the outer side wall of the first lead screw 15 through external threads, a second lead screw 16 is fixedly connected to the bottom of the driven wheel 2, two first sliders 17 are connected to the outer side wall of the second lead screw 16 through external threads, a second connecting plate 34 is fixedly connected to one side of each first slider 17, a first support 6 is fixedly connected to one side of each second connecting plate 34 far away from the first slider 17, a first blackboard 7 is fixedly connected to the inner side wall of the first support 6, one side of the second slider 19 is fixedly connected with a first connecting plate 18, one side of the first connecting plate 18, which is far away from the second slider 19, is fixedly connected with a second support 8, the inner side wall of the second support 8 is fixedly connected with a second blackboard 9, and the spiral directions of the external threads of the first screw rod 15 and the second screw rod 16 are arranged in a reverse direction.

In this embodiment, specifically: one side of the first bracket 6, which is far away from the second lead screw 16, is fixedly connected with two second connecting plates 34, one side of each second connecting plate 34 is fixedly connected with a first ring body 10, the inner side wall of the first ring body 10 is slidably connected with a second sliding rod 29, one side of the second bracket 8, which is far away from the first lead screw 15, is fixedly connected with two first connecting plates 18, one side of each first connecting plate 18 is fixedly connected with a second ring body 27, the inner side wall of the second ring body 27 is slidably connected with a first sliding rod 28, the top ends of the first sliding rod 28 and the second sliding rod 29 are fixedly connected with second fixing blocks 11, the bottom ends of the first sliding rod 28 and the second sliding rod 29 are fixedly connected with third fixing blocks 26, one sides of the second fixing blocks 11 and the third fixing blocks 26 are fixedly connected with the wall surface 1, and the second connecting plates 34 are used for fixing the first bracket 6, the first connecting plate 18 is used for fixing the second bracket 8, and the second fixing block 11 and the third fixing block 26 are used for fixing the first slide rod 28 and the second slide rod 29.

In this embodiment, specifically: the utility model discloses a lead screw, including first lead screw 15, lateral wall fixedly connected with quantity of first lead screw 15 is two second bearing 14, lateral wall fixedly connected with quantity of second lead screw 16 is two first bearing 4, the equal fixedly connected with support frame 30 in outer lane of first bearing 4 and second bearing 14, the one end and the 1 fixed connection of wall of support frame 30, the second spout 32 that quantity is two of seting up of first fixed block 5, one side and the 1 fixed connection of wall of first fixed block 5, the fixed first lead screw 15 of second bearing 14 and support frame 30 combined action, the fixed second lead screw 16 of first bearing 4 and support frame 30 combined action.

In this embodiment, specifically: one side fixedly connected with switch 33 of wall 1, the electrical property output of switch 33 and the electrical property input electric connection of motor 12, switch 33 control opening and closing of motor 12.

In this embodiment, specifically: one side fixedly connected with U template 23 of wall 1, first spout 31 has been seted up to one side of U template 23, the inside of U template 23 is provided with third slider 24, one side fixedly connected with pillar 25 of third slider 24, the one end sliding connection of pillar 25 is in the inside of first spout 31, and U template 23 is used for collecting the chalk of dust and rupture.

In this embodiment, specifically: l type recess 22 has been seted up to one side of U type board 23, the inside sliding connection of L type recess 22 has L type pillar 21, one side fixedly connected with box 20 of L type pillar 21, third slider 24 pushes the chalk of dust and rupture in box 20, convenient clearance.

In this embodiment, the motor 12 is a 5IK90RGN-CFM motor.

Working principle or structural principle, when in use, the switch 33 is turned on, the motor 12 drives the first lead screw 15 to rotate, the first lead screw 15 enables the second slider 19 to move up and down through external threads, the rotation of the first lead screw 15 drives the driving wheel 13 to rotate, further the driven wheel 2 rotates through the belt 3, the second lead screw 16 rotates through the rotation of the driven wheel 2, further the first slider 17 moves up and down through the external threads, as the spiral directions of the external threads of the first lead screw 15 and the second lead screw 16 are mutually arranged in directions, the first slider 17 and the second slider 19 move relatively, further the first blackboard 7 and the second blackboard 9 connected with the first slider 17 and the second slider 19 move relatively, further the first blackboard 7 and the second blackboard 9 can move to a lower area alternately, thereby facilitating the writing of teaching personnel, chalk dust falling in the writing process falls into the U-shaped plate 23, through pulling pillar 25 make third slider 24 promote the chalk dust, and then push the chalk dust in box 20, because L type pillar 21 and L type recess 22 sliding connection, and then can make box 20 break away from U template 23, make things convenient for the staff to handle the dust chalk.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a teaching aid, includes wall (1) and first fixed block (5), its characterized in that: the wall is characterized in that a motor (12) is fixedly connected to one side of the wall surface (1), a first lead screw (15) is welded to a bottom output shaft of the motor (12), a driving wheel (13) is fixedly connected to the outer side wall of the first lead screw (15), a belt (3) is arranged on the outer side wall of the driving wheel (13), the driving wheel (13) is in transmission connection with a driven wheel (2) through the belt (3), two second sliders (19) are connected to the outer side wall of the first lead screw (15) through external threads, a second lead screw (16) is fixedly connected to the bottom of the driven wheel (2), two first sliders (17) are connected to the outer side wall of the second lead screw (16) through external threads, a second connecting plate (34) is fixedly connected to one side of the first slider (17) of the second connecting plate (34), and a first support (6) is fixedly connected to one side of the second connecting plate (, the blackboard comprises a first blackboard (7) fixedly connected with the inner side wall of a first support (6), a first connecting plate (18) fixedly connected with one side of a second sliding block (19), a second support (8) fixedly connected with one side of the second sliding block (19) and connected with the first connecting plate (18), a second blackboard (9) fixedly connected with the inner side wall of the second support (8), and a first screw rod (15) and a second screw rod (16) are arranged in a reverse direction.

2. A teaching aid as claimed in claim 1 wherein: one side fixedly connected with quantity that second lead screw (16) was kept away from in first support (6) is two second even board (34), one side difference fixedly connected with first ring body (10) of second even board (34), the inside wall sliding connection of first ring body (10) has second litter (29), one side fixedly connected with quantity that first lead screw (15) was kept away from in second support (8) is two first even board (18), one side difference fixedly connected with second ring body (27) of first ring body (18), the inside wall sliding connection of second ring body (27) has first litter (28), the equal fixedly connected with second fixed block (11) in top of first litter (28) and second litter (29), the equal fixedly connected with third fixed block (26) in bottom of first litter (28) and second litter (29), one side of second (11) and third (26) all with fixed block (1) fixed connection .

3. A teaching aid as claimed in claim 1 wherein: the utility model discloses a lead screw, including first lead screw (15), lateral wall fixedly connected with quantity of first lead screw (15) is two second bearing (14), the lateral wall fixedly connected with quantity of second lead screw (16) is two first bearing (4), the equal fixedly connected with support frame (30) in outer lane of first bearing (4) and second bearing (14), the one end and wall (1) fixed connection of support frame (30), the second spout (32) that quantity was two are seted up of first fixed block (5), one side and wall (1) fixed connection of first fixed block (5).

4. A teaching aid as claimed in claim 1 wherein: one side fixedly connected with switch (33) of wall (1), the electrical property output of switch (33) and the electrical property input electric connection of motor (12).

5. A teaching aid as claimed in claim 1 wherein: one side fixedly connected with U template (23) of wall (1), first spout (31) have been seted up to one side of U template (23), the inside of U template (23) is provided with third slider (24), one side fixedly connected with pillar (25) of third slider (24), the one end sliding connection of pillar (25) is in the inside of first spout (31).

6. An educational appliance as claimed in claim 5, wherein: l type recess (22) have been seted up to one side of U template (23), the inside sliding connection of L type recess (22) has L type pillar (21), one side fixedly connected with box (20) of L type pillar (21).