CN210804904U

CN210804904U - Physical teaching goes up and down to demonstrate model

Info

Publication number: CN210804904U
Application number: CN201922039880.4U
Authority: CN
Inventors: 陈心怡
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-06-19
Anticipated expiration: 2029-11-23

Abstract

The utility model relates to a teaching aid technical field, and a physics teaching goes up and down to demonstrate model is disclosed, including the device main part, one side of device main part upper surface is fixed with the baffle, a side sliding connection of device main part has two drawers, a side of drawer is fixed with the metal handle, the inside of device main part is fixed with driving motor, driving motor's output is connected with second bevel gear, second bevel gear's surface mesh is connected with first bevel gear, first bevel gear's last fixed surface has the worm, the worm all is fixed with fixed jack-post with first bevel gear's side, first bevel gear's surface mounting has demonstration mechanism. The utility model discloses a series of structural design make the device can conveniently place the model that the size is not of uniform size, and can go up and down for can be convenient for observe more.

Description

Physical teaching goes up and down to demonstrate model

Technical Field

The utility model relates to a teaching aid technical field especially relates to a physics teaching goes up and down to demonstrate model.

Background

The physics experiment teaching is the important form and the method of physics teaching, generally divide into demonstration experiment, the interior experiment of class (the experiment of saying while), student's grouping experiment and extracurricular experiment, need use teaching demonstration model usually when carrying out the demonstration experiment, but the demonstration model is not convenient for to go up and down to present physics teaching lift demonstration model table, and the not model of equidimension of show that can't be more convenient.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the existing physical teaching lifting demonstration model is not convenient for lifting demonstration models and cannot more conveniently show models with different sizes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a physics teaching goes up and down to demonstrate model, includes the device main part, one side of device main part upper surface is fixed with the baffle, a side sliding connection of device main part has two drawers, a side of drawer is fixed with the metal handle, the inside of device main part is fixed with driving motor, driving motor's output is connected with the second bevel gear, the surface engagement of second bevel gear is connected with first bevel gear, the last fixed surface of first bevel gear has the worm, the worm all is fixed with fixed jack-post with the side of first bevel gear, one side of first bevel gear is fixed with the demonstration mechanism that can reciprocate.

Preferably, the demonstration mechanism is including expandeing strip, spacing post, backup pad, lift post, the spacing dish of metal and show board, the lower fixed surface of show board has the lift post, one side of lift post is provided with the gear strip, the bottom mounting of lift post has the spacing dish of metal, the equal swing joint of both sides face of show board has the expansion strip, an end face of expansion strip is fixed with spacing post and backup pad in proper order.

Preferably, the lower surface of the display board is connected with the upper surface of the lifting column through a screw.

Preferably, the upper end and the lower end of the unfolding strip are both provided with anti-slip strips.

Preferably, the bottom end of the lifting column is connected with the upper surface of the metal limiting disc through welding.

Preferably, the metal handle is fixed on one side surface of the drawer through a screw.

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

(1) the utility model discloses a connect external power source with the device, later make under driving motor's effect can drive the lift post and rise, drive the show board when rising and rise, hold between the fingers the expansion strip at show board both ends after rising to the take the altitude, later will expand the strip and pull out to both ends for spacing post and backup pad are taken out, superpose mutually at backup pad and show board and make its area bigger, can place the model of different size and dimension.

(2) The utility model discloses a control driving motor drives the second bevel gear rotation when control demonstration mechanism rises, and it is rotatory to drive first bevel gear under the effect that second bevel gear and first bevel gear meshing are connected, and then makes the worm can rotate, drives the lift post under the effect of the slot of lift post side and rises, and then makes the show board rise, and the model that drives the show board upper surface and place rises, and then makes and to conveniently observe the model more.

Drawings

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

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

FIG. 3 is a schematic view of the connection between the worm and the lifting column of the present invention;

fig. 4 is a schematic structural diagram of the demonstration mechanism of the present invention.

In the figure: 1. a device main body; 2. a drawer; 3. a metal handle; 4. a demonstration mechanism; 5. a baffle plate; 6. unfolding the strip; 7. a limiting column; 8. a support plate; 9. a lifting column; 10. a metal limiting disc; 11. a display board; 12. a worm; 13. a first bevel gear; 14. a second bevel gear; 15. a drive motor; 16. and fixing the shaft column.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being 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.

Referring to fig. 1-4, a physical teaching lifting demonstration model comprises a device main body 1, wherein a baffle 5 is fixed on one side of the upper surface of the device main body 1, two drawers 2 are slidably connected to one side of the device main body 1, metal handles 3 are fixed on one side of the drawers 2, and the metal handles 3 are fixed on one side of the drawers 2 through screws, so that the drawers 2 can be more conveniently drawn out, and sundries can be more conveniently placed;

a driving motor 15 is fixed inside the device main body 1, the output end of the driving motor 15 is connected with a second bevel gear 14, the outer surface of the second bevel gear 14 is connected with a first bevel gear 13 in a meshing manner, the upper surface of the first bevel gear 13 is fixed with a worm 12, the sides of the worm 12 and the first bevel gear 13 are both fixed with a fixed shaft column 16, and one side of the first bevel gear 13 is fixed with a demonstration mechanism 4 capable of moving up and down;

demonstration mechanism 4 is including expandeing strip 6, spacing post 7, backup pad 8, lift post 9, spacing dish 10 of metal and show board 11, the lower fixed surface of show board 11 has lift post 9, one side of lift post 9 is provided with the rack, the lower surface of show board 11 passes through the screw connection with the upper surface of lift post 9, lift post 9 can drive show board 11 when going up and down and go up and down, the bottom mounting of lift post 9 has spacing dish 10 of metal, the bottom of lift post 9 passes through welded connection with the upper surface of spacing dish 10 of metal, and then make and fix between lift post 9 and the spacing dish 10 of metal more fasten, the equal swing joint of both sides face of show board 11 has expandes strip 6, the antislip strip has all been seted up to the upper and lower extreme of expandes strip 6, it takes backup pad 8 out to conveniently hold between the expandes strip 6, an end face of expandes strip 6 is fixed with spacing post 7 and backup pad 8 in proper.

The working principle is as follows:

in the utility model, when the user uses the device, firstly, the device is connected with an external power supply, then the lifting column 9 can be driven to rise under the action of the driving motor 15, the display board 11 is driven to rise while rising, the expanding strips 6 at two ends of the display board 11 are pinched after rising to a certain height, then the expanding strips 6 are pulled out towards two ends, the spacing column 7 and the supporting plate 8 are drawn out, the supporting plate 8 and the display board 11 are overlapped to make the area of the supporting plate larger, models with different sizes and sizes can be placed, then the driving motor 15 is controlled to drive the second bevel gear 14 to rotate when the demonstration mechanism 4 is controlled to rise, the first bevel gear 13 is driven to rotate under the meshing connection between the second bevel gear 14 and the first bevel gear 13, further the worm 12 can rotate, the lifting column 9 is driven to rise under the action of a groove at one side surface of the lifting column 9, and then the display board 11 rises, the model placed on the upper surface of the display board 11 is driven to ascend, so that the model can be observed more conveniently.

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.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A physical teaching lifting demonstration model comprises a device main body (1) and is characterized in that, a baffle (5) is fixed on one side of the upper surface of the device main body (1), two drawers (2) are connected with one side surface of the device main body (1) in a sliding way, a metal handle (3) is fixed on one side surface of the drawer (2), a driving motor (15) is fixed inside the device main body (1), the output end of the driving motor (15) is connected with a second bevel gear (14), the outer surface of the second bevel gear (14) is connected with a first bevel gear (13) in a meshing way, a worm (12) is fixed on the upper surface of the first bevel gear (13), a fixed shaft column (16) is fixed on the sides of the worm (12) and the first bevel gear (13), and a demonstration mechanism (4) capable of moving up and down is fixed on one side of the first bevel gear (13).

2. The physical teaching lifting demonstration model according to claim 1, wherein the demonstration mechanism (4) comprises an expansion bar (6), a limiting post (7), a support plate (8), a lifting post (9), a metal limiting disc (10) and a demonstration board (11), the lifting post (9) is fixed on the lower surface of the demonstration board (11), a gear bar is arranged on one side of the lifting post (9), the metal limiting disc (10) is fixed at the bottom end of the lifting post (9), the expansion bar (6) is movably connected with both side surfaces of the demonstration board (11), and the limiting post (7) and the support plate (8) are sequentially fixed on one end surface of the expansion bar (6).

3. A physical teaching up-down demonstration model as claimed in claim 2, wherein the lower surface of the demonstration board (11) is connected with the upper surface of the up-down column (9) by screws.

4. The physical teaching lifting demonstration model according to claim 2, wherein the upper and lower ends of the unfolding strip (6) are provided with anti-slip strips.

5. The physical teaching lifting demonstration model as claimed in claim 2, wherein the bottom end of the lifting column (9) is connected with the upper surface of the metal limiting disc (10) by welding.

6. A physics teaching lifting demonstration model according to claim 4 characterized in that said metal handle (3) is fixed on one side of drawer (2) by screws.