CN214752590U

CN214752590U - Classroom teaching presentation device

Info

Publication number: CN214752590U
Application number: CN202120978802.5U
Authority: CN
Inventors: 李禹潞; 张磊
Original assignee: Qujing Normal University
Current assignee: Qujing Normal University
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-11-16
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses a classroom teaching presentation device, including outer box, the inside fixedly connected with baffle of outer box, sliding connection has the sliding plate between the inside left side of baffle and outer box, the top of sliding plate is rotated and is connected with the carousel, the top fixedly connected with installation piece of carousel, the bottom of sliding plate is rotated and is connected with two switching poles, the left side of baffle is rotated and is connected with the worm, the bottom inner wall of outer box rotates and is connected with the spline bar, the peripheral movable sleeve in top of spline bar is equipped with spline section of thick bamboo, the peripheral fixed cover of spline bar is equipped with and meshes driven worm wheel with the worm, the positive inner wall of outer box rotates and is connected with two-way threaded rod, two-way threaded rod's peripheral threaded connection has two thread bushings. The utility model provides an earth model teaching demonstration apparatus carry inconvenience, demonstration operational difficulties scheduling problem among the current geography teaching.

Description

Classroom teaching presentation device

Technical Field

The utility model relates to a teaching aid technical field especially relates to a classroom teaching presentation device.

Background

Geography is a general term of natural environment and social elements in the world or a certain region, the term "geography" is originally found in the book "Yi Jing" in China, ancient geography mainly explores measuring methods related to the shapes and sizes of earth balls or describes known regions and countries, geography is a subject for researching various natural phenomena and human phenomena in the geographic environment of the earth surface and the interrelation between the natural phenomena and the human phenomena, and geography is a comprehensive basic subject.

At present, in geography teaching, for students can better understand geography knowledge, earth model teaching demonstration appliances are commonly used, but the appliances have the problems of inconvenience in carrying, difficulty in demonstration operation and the like, and therefore a classroom teaching demonstration device is provided.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a classroom teaching presentation device has solved among the current geography teaching that earth model teaching presentation instrument carries inconvenience, demonstration operational difficulties scheduling problem.

(II) technical scheme

The utility model provides a classroom teaching demonstration device, which comprises an outer box body, wherein a clapboard is fixedly connected inside the outer box body, a sliding plate is connected between the partition plate and the left side of the inner part of the outer box body in a sliding way, the top of the sliding plate is rotationally connected with a rotating disc, the top of the rotary disc is fixedly connected with an installation block, the bottom of the sliding plate is rotatably connected with two adapter rods, the left side of the clapboard is rotationally connected with a worm, the inner wall of the bottom of the outer box body is rotationally connected with a spline rod, the periphery of the top end of the spline rod is movably sleeved with a spline cylinder, the periphery of the spline rod is fixedly sleeved with a worm wheel which is meshed with the worm for transmission, the front inner wall of outer box rotates and is connected with two-way threaded rod, two thread bush, two are connected to the peripheral threaded connection of two-way threaded rod the top of thread bush is rotated with the one end that the sliding plate was kept away from to two keysets respectively and is connected.

Preferably, the top of installation piece has been seted up the rectangular channel, the bottom sliding connection of rectangular channel has two to press from both sides tight piece, two press from both sides the equal fixedly connected with two springs in one side that the tight piece was kept away from each other, the spring is kept away from the one end that presss from both sides tight piece and the inner wall fixed connection of installation piece rectangular channel.

Preferably, the middle part of the sliding plate is provided with a circular through hole, and the top of the spline cylinder penetrates through the circular through hole and is fixedly connected with the bottom of the turntable.

Preferably, the top of the outer box body is hinged with a cover plate, and the top of the cover plate is fixedly provided with a handle.

Preferably, a first circular through hole is formed in the left wall of the outer box body, the left end of the worm penetrates through the first circular through hole and is fixedly connected with a first crank, a second circular through hole is formed in the back wall of the outer box body, and the rear end of the bidirectional threaded rod penetrates through the second circular through hole and is fixedly connected with a second crank.

Preferably, the inner wall of the bottom of the outer box body is fixedly connected with a stabilizing block, and a demonstration model is placed above the stabilizing block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up components such as outer box, apron and handle, make this practical device be convenient for the teacher and carry.

2. Through setting up components such as spline pole, spline section of thick bamboo, carousel, worm wheel, can place demonstration model and fix on the installation piece, the teacher's accessible rotates the demonstration model rotation on the first crank drives the installation piece, makes things convenient for teacher's teaching demonstration, through setting up components such as two-way threaded rod, thread bush, switching pole, makes the utility model discloses the lift of sliding plate, carousel, installation piece of being convenient for makes the demonstration effect better when rising, accomodates in the withdrawal outer box when reducing.

Drawings

Fig. 1 is a front view structure cut-away view of a classroom teaching demonstration device provided by the utility model;

FIG. 2 is a side view structure cut-away view of a classroom teaching demonstration device provided by the utility model;

fig. 3 is a schematic perspective view of an installation block of a classroom teaching demonstration apparatus provided by the utility model;

fig. 4 is the utility model provides a classroom teaching presentation device's spline pole and spline section of thick bamboo face upward the structure sketch map.

In the figure: the device comprises an outer box 1, a partition plate 2, a worm 3, a first crank 41, a second crank 42, a spline rod 5, a spline cylinder 6, a worm wheel 7, a bidirectional threaded rod 8, a threaded sleeve 9, an adapter rod 10, a sliding plate 11, a rotary table 12, an installation block 13, a cover plate 14, a stabilizing block 15, a demonstration model 16, a spring 17 and a clamping block 18.

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.

As shown in fig. 1-4, the utility model provides a classroom teaching presentation device, including outer box 1, outer box 1's inside fixedly connected with baffle 2, sliding connection has sliding plate 11 between the inside left side of baffle 2 and outer box 1, sliding plate 11's top is rotated and is connected with carousel 12, carousel 12's top fixedly connected with installation piece 13, sliding plate 11's bottom is rotated and is connected with two keysets 10, baffle 2's left side is rotated and is connected with worm 3, outer box 1's bottom inner wall is rotated and is connected with spline bar 5, spline bar 5's the peripheral movable sleeve in top is equipped with spline section of thick bamboo 6, spline bar 5's peripheral fixed sleeve is equipped with and meshes driven worm wheel 7 with worm 3, outer box 1's front inner wall is rotated and is connected with two-way threaded rod 8, two-way threaded rod 8's peripheral threaded connection has two thread bushings 9, two thread bushings 9's top is connected with the one end rotation that two keysets 10 keep away from sliding plate 11 respectively.

In an alternative embodiment, a rectangular groove is formed in the top of the mounting block 13, two clamping blocks 18 are slidably connected to the bottom of the rectangular groove, two springs 17 are fixedly connected to the sides, away from each other, of the two clamping blocks 18, and one end, away from the clamping blocks 18, of each spring 17 is fixedly connected to the inner wall of the rectangular groove of the mounting block 13.

It should be noted that the spring 17 and the clamping block 18 serve to clamp and secure the base of the demonstration model 16.

In an alternative embodiment, the sliding plate 11 has a circular through hole in the middle, and the top of the spline cylinder 6 passes through the circular through hole and is fixedly connected with the bottom of the turntable 12.

In an alternative embodiment, the top of the outer box 1 is hinged with a cover plate 14, and the top of the cover plate 14 is fixedly provided with a handle.

It should be noted that the cover 14 and handle are convenient for the teacher to carry the device.

In an alternative embodiment, the left wall of the outer box 1 is formed with a first circular through hole, the left end of the worm 3 is formed through the first circular through hole and fixedly connected with the first crank 41, the back wall of the outer box 1 is formed with a second circular through hole, and the rear end of the bidirectional threaded rod 8 is formed through the second circular through hole and fixedly connected with the second crank 42.

In an alternative embodiment, the inner wall of the bottom of the outer box 1 is fixedly connected with a stabilizing block 15, and a demonstration model 16 is placed above the stabilizing block 15.

It should be noted that the stabilization block 15 functions to stabilize the demonstration model 16.

The working principle is as follows: firstly, the utility model is convenient for teachers to carry by arranging the cover plate 14, the handle and other components, the utility model is placed on a platform, the cover plate 14 is opened, the demonstration model 16 is taken out and placed on the top of the installation block 13, the base of the demonstration model 16 is clamped and fixed under the action of the spring 17 and the clamping block 18, then the second crank 42 is rotated to drive the two thread sleeves 9 to move towards the direction close to each other, the sliding plate 11, the rotary plate 12 and the installation block 13 are driven to integrally rise under the switching action of the switching rod 10, the demonstration model 16 can integrally protrude out of the top of the outer box body 1, the teaching demonstration of teachers is convenient, then the worm 3 is driven to rotate by rotating the first crank 41, the spline rod 5 and the worm wheel 7 are driven to rotate under the meshing transmission, thereby the rotary plate 12, the installation block 13 and the demonstration model 16 are driven to integrally rotate, and thus teachers can rotate the demonstration model 16 while teaching, the use is very convenient, and after the demonstration is finished, the demonstration model 16 is put back to the initial position, the sliding plate 11 is descended to the initial position, and then the cover plate 14 is covered.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The classroom teaching demonstration device is characterized by comprising an outer box body (1), a partition plate (2) is fixedly connected inside the outer box body (1), a sliding plate (11) is slidably connected between the partition plate (2) and the left inside of the outer box body (1), a rotary plate (12) is rotatably connected to the top of the sliding plate (11), a mounting block (13) is fixedly connected to the top of the rotary plate (12), two adapter rods (10) are rotatably connected to the bottom of the sliding plate (11), a worm (3) is rotatably connected to the left side of the partition plate (2), a spline rod (5) is rotatably connected to the inner wall of the bottom of the outer box body (1), a spline cylinder (6) is movably sleeved on the periphery of the top end of the spline rod (5), a worm gear (7) in meshing transmission with the worm and the worm (3) is sleeved on the periphery of the spline rod (5), and a bidirectional threaded rod (8) is rotatably connected to the inner wall of the front side of the outer box body (1), the peripheral screw thread of two-way threaded rod (8) is connected with two thread bushings (9), and the top of two thread bushings (9) is connected with the one end rotation that sliding plate (11) were kept away from to two adapter rod (10) respectively.

2. The classroom teaching demonstration device according to claim 1, wherein a rectangular groove is formed in the top of the mounting block (13), two clamping blocks (18) are slidably connected to the bottom of the rectangular groove, two springs (17) are fixedly connected to the sides of the two clamping blocks (18) away from each other, and one ends of the springs (17) away from the clamping blocks (18) are fixedly connected to the inner wall of the rectangular groove of the mounting block (13).

3. The classroom teaching demonstration device according to claim 1, wherein the sliding plate (11) is provided with a circular through hole in the middle, and the top of the spline cylinder (6) passes through the circular through hole and is fixedly connected with the bottom of the rotary table (12).

4. A classroom teaching demonstration device as claimed in claim 1, wherein a cover plate (14) is hinged to the top of the outer box body (1), and a handle is fixedly mounted on the top of the cover plate (14).

5. The classroom teaching demonstration device according to claim 1, wherein a first circular through hole is formed in the left wall of the outer box (1), the left end of the worm (3) penetrates through the first circular through hole and is fixedly connected with a first crank (41), a second circular through hole is formed in the back wall of the outer box (1), and the rear end of the bidirectional threaded rod (8) penetrates through the second circular through hole and is fixedly connected with a second crank (42).

6. A classroom teaching demonstration device as claimed in claim 1, wherein a stabilizing block (15) is fixedly connected to the inner bottom wall of the outer box (1), and a demonstration model (16) is placed above the stabilizing block (15).