CN219183191U - Auxiliary demonstration device - Google Patents

Abstract

The utility model discloses an auxiliary demonstration device, which comprises a base, wherein the top of the base is fixedly connected with a supporting rod, the outside of the supporting rod is fixedly connected with a motor, an output shaft of the motor vertically penetrates through the supporting rod and extends to the inside of the supporting rod, the output shaft of the motor is rotationally connected with the supporting rod, the inside of the supporting rod is rotationally connected with a first bevel gear, the first bevel gear is fixedly connected with the output shaft of the motor, the inside of the supporting rod is rotationally connected with a screw rod, the outside of the screw rod is fixedly connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear, the outside of the screw rod is in threaded connection with a lifting plate, and the top of the lifting plate is fixedly connected with supporting plates at two corresponding sides of the screw rod; the beneficial effects achieved by the utility model are as follows: can reduce the height of first whiteboard, effectively reduce the device at fore-and-aft occupation space, conveniently remove and place the device, can promote the stability when the second whiteboard removes.

Description

Auxiliary demonstration device

Technical Field

The utility model relates to the technical field of English teaching, in particular to an auxiliary demonstration device.

Background

At present, in english teaching, the standard writing method of the experienced mastering english word of most basic professor student, about the writing method of word, all not standard when many students write the word, therefore the mr when the teaching, can write the standard writing of word and demonstrate on the teaching demonstration board, and current teaching demonstration board has following drawback in the in-service use: 1. when the existing teaching demonstration board is used for writing words, a teacher needs to draw auxiliary lines of four-wire three-grids by means of a ruler, and then write standard written words in the four-wire three-grids, so that the method is time-consuming and labor-consuming, and the teaching efficiency is low; 2. the existing teaching demonstration board is not strong in adjustability, inconvenient to store teaching objects, single in functionality and inconvenient to assist in teaching.

The Chinese patent discloses a 'college English teaching auxiliary presentation device' with a patent number of CN202221144905.2, and the scheme records a 'college English teaching auxiliary presentation device', and relates to the technical field of English teaching. The utility model comprises a base, a storage cabinet, a demonstration frame, a white board and a scribing assembly, wherein the top surface of the base is fixedly provided with the storage cabinet, the top of the base is connected with the demonstration frame through a hydraulic cylinder, and one side of the demonstration frame is connected with the scribing assembly in a sliding manner. Before writing words, the utility model can draw a group of equidistant four-line three lattices for assisting the writing of English words by pulling the scribing assembly, so that the utility model is time-saving and labor-saving, convenient to operate, and capable of improving teaching efficiency.

Disclosure of Invention

The present utility model is directed to an auxiliary demonstration device, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an auxiliary demonstration device, includes the base, the top fixedly connected with bracing piece of base, the outside fixedly connected with motor of bracing piece, the output shaft of motor runs through the bracing piece perpendicularly and extends to the inside of bracing piece, the output shaft and the bracing piece of motor rotate to be connected, the inside of bracing piece rotates to be connected with first bevel gear, the output shaft fixedly connected with of first bevel gear and motor, the inside of bracing piece changes to be connected with the lead screw, the outside fixedly connected with second bevel gear of lead screw, second bevel gear is connected with first bevel gear meshing, the outside threaded connection of lead screw has the lifter plate, the top of lifter plate just is located the equal fixedly connected with backup pad of corresponding both sides limit of lead screw, lifter plate and backup pad all with bracing piece sliding connection, the top fixedly connected with fixed plate of backup pad, the bottom fixedly connected with first whiteboard of fixed plate, the inside of bracing piece just is located one side sliding connection of backup pad, the outside fixedly connected with second whiteboard of movable plate, the spout has been seted up to the inside sliding connection of backup pad, slide bar sliding connection has slide bar and slide bar fixed connection.

Preferably, the outside fixedly connected with control switch of bracing piece, motor and control switch electric connection.

Preferably, a guide plate is slidably connected to the inside of the support rod and below the movable plate, and the guide plate is fixedly connected with the second whiteboard.

Preferably, a tension spring is fixedly connected between the second whiteboard and the supporting rod.

Preferably, the outside of lead screw rotates and is connected with the limiting plate, limiting plate and bracing piece fixed connection.

Preferably, the supporting rod and the lifting plate are square structures.

The beneficial effects achieved by the utility model are as follows: through the base, bracing piece, motor, first bevel gear, lead screw, second bevel gear, lifter plate, backup pad, fixed plate, first blank, fly leaf, second blank, spout, slide bar and control switch that set up, can reduce the height of first blank through electric mode to effectively reduced the device at fore-and-aft occupation space, conveniently remove and place the device, through deflector plate and extension spring that set up, stability when can promote the second blank and remove.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model prior to folding;

FIG. 3 is a schematic cross-sectional view of the present utility model after folding;

fig. 4 is a schematic diagram of the elevating plate of the present utility model.

In the figure: 1. a base; 2. a support rod; 3. a motor; 4. a first bevel gear; 5. a screw rod; 6. a second bevel gear; 7. a lifting plate; 8. a support plate; 9. a fixing plate; 10. a first whiteboard; 11. a movable plate; 12. a second whiteboard; 13. a chute; 14. a slide bar; 15. a control switch; 16. a guide plate; 17. a tension spring; 18. and a limiting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution:

an auxiliary demonstration device can be used for college English teaching; the device comprises a base 1, a supporting rod 2 is fixedly connected to the top of the base 1, a motor 3 is fixedly connected to the outer portion of the supporting rod 2, an output shaft of the motor 3 vertically penetrates through the supporting rod 2 and extends to the inner portion of the supporting rod 2, an output shaft of the motor 3 is rotationally connected with the supporting rod 2, a first bevel gear 4 is rotationally connected to the inner portion of the supporting rod 2, the first bevel gear 4 is fixedly connected with an output shaft of the motor 3, a screw rod 5 is rotationally connected to the inner portion of the supporting rod 2, a second bevel gear 6 is fixedly connected to the outer portion of the screw rod 5, the second bevel gear 6 is in meshed connection with the first bevel gear 4, a lifting plate 7 is connected to the outer portion of the screw rod 5 in a threaded manner, and when the screw rod 5 rotates, the lifting plate 7 and the supporting plate 8 can drive a first whiteboard 10 to move up and down, so that the height of the device can be reduced conveniently; the top of lifter plate 7 just is located the equal fixedly connected with backup pad 8 of corresponding both sides limit of lead screw 5, lifter plate 7 and backup pad 8 all with bracing piece 2 sliding connection, the top fixedly connected with fixed plate 9 of backup pad 8, the first whiteboard 10 of bottom fixedly connected with of fixed plate 9, the inside of bracing piece 2 just is located one side sliding connection of backup pad 8 has fly leaf 11, the outside fixedly connected with second whiteboard 12 of fly leaf 11, spout 13 has been seted up to the inside of backup pad 8, the inside sliding connection of spout 13 has slide bar 14, slide bar 14 and fly leaf 11 fixed connection, make backup pad 8 can drive the removal of second whiteboard 12 through fly leaf 11 through spout 13 and slide bar 14, be favorable to the lifting control to first whiteboard 10.

The outside of the supporting rod 2 is fixedly connected with a control switch 15, the motor 3 is electrically connected with the control switch 15, and electric equipment in the device is powered by an external power supply and is controlled by the control switch 15; the guide plate 16 is connected in a sliding manner inside the support rod 2 and below the movable plate 11, the guide plate 16 is fixedly connected with the second whiteboard 12, and the stability of the second whiteboard 12 during movement can be improved through the guide plate 16; a tension spring 17 is fixedly connected between the second whiteboard 12 and the supporting rod 2, and the second whiteboard 12 can be conveniently returned to the initial position by the tension of the tension spring 17; the outside of the screw rod 5 is rotationally connected with a limiting plate 18, the limiting plate 18 is fixedly connected with the support rod 2, and the stability of the screw rod 5 during rotation can be ensured through the limiting plate 18; the supporting rod 2 and the lifting plate 7 are of square structures, and the square structures play a role in limiting, so that the lifting plate 7 can be driven to move up and down inside the supporting rod 2 when the screw rod 5 rotates.

Specifically, when the utility model is used, the motor 3 is controlled to rotate forward through the control switch 15, the screw rod 5 in the supporting rod 2 is driven to rotate through the first bevel gear 4 and the second bevel gear 6, and the supporting rod 2 and the lifting plate 7 are of square structures, so that the lifting plate 7 and the supporting plate 8 on the lifting plate 7 are driven to move upwards when the screw rod 5 rotates forward, the first whiteboard 10 is driven to move upwards through the fixed plate 9, under the action of the sliding groove 13 and the sliding rod 14, when the first whiteboard 10 is about to move upwards to the highest position, the supporting plate 8 extrudes the movable plate 11, so that the movable plate 11 drives the second whiteboard 12 to move in a direction far away from the supporting rod 2 until the second whiteboard 12 is positioned under the first whiteboard 10, and the first whiteboard 10 also moves upwards to the highest position at the moment, and therefore, the unfolding work is completed, and when the movable placement is needed, only the motor 3 needs to be controlled to rotate reversely.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

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

Claims (6)

1. The utility model provides an auxiliary demonstration device, includes base (1), the top fixedly connected with bracing piece (2) of base (1), the outside fixedly connected with motor (3) of bracing piece (2), the output shaft of motor (3) runs through bracing piece (2) perpendicularly and extends to the inside of bracing piece (2), the output shaft of motor (3) rotates with bracing piece (2) to be connected, the inside of bracing piece (2) rotates and is connected with first bevel gear (4), the output shaft fixed connection of first bevel gear (4) and motor (3), its characterized in that: the inside of bracing piece (2) is changeed and is connected with lead screw (5), the outside fixedly connected with second bevel gear (6) of lead screw (5), second bevel gear (6) and first bevel gear (4) meshing are connected, the outside threaded connection of lead screw (5) has lifter plate (7), the top of lifter plate (7) just is located corresponding both sides limit equal fixedly connected with backup pad (8) of lead screw (5), lifter plate (7) and backup pad (8) all with bracing piece (2) sliding connection, the top fixedly connected with fixed plate (9) of backup pad (8), the bottom fixedly connected with first blank (10) of fixed plate (9), the inside of bracing piece (2) just is located one side sliding connection of backup pad (8) fly leaf (11), the outside fixedly connected with second blank (12) of fly leaf (11), spout (13) have been seted up to the inside of backup pad (8), inside sliding connection of spout (13) has slide bar (14), slide bar (14) and fly leaf (11) fixed connection.

2. An auxiliary presentation device as claimed in claim 1, wherein: the outside fixedly connected with control switch (15) of bracing piece (2), motor (3) and control switch (15) electric connection.

3. An auxiliary presentation device as claimed in claim 1, wherein: the inside of bracing piece (2) and be located the below sliding connection of fly leaf (11) have deflector (16), deflector (16) and second whiteboard (12) fixed connection.

4. An auxiliary presentation device as claimed in claim 1, wherein: a tension spring (17) is fixedly connected between the second whiteboard (12) and the supporting rod (2).

5. An auxiliary presentation device as claimed in claim 1, wherein: the outside of lead screw (5) rotates and is connected with limiting plate (18), limiting plate (18) and bracing piece (2) fixed connection.

6. An auxiliary presentation device as claimed in claim 1, wherein: the supporting rod (2) and the lifting plate (7) are square structures.

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