CN113299124A

CN113299124A - Movable english teaching show stand

Info

Publication number: CN113299124A
Application number: CN202110657848.1A
Authority: CN
Inventors: 李丰华
Original assignee: Hunan Mechanical and Electrical Polytechnic
Current assignee: Hunan Mechanical and Electrical Polytechnic
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-08-24

Abstract

The invention discloses a movable English teaching display platform, which comprises a table board, a display screen, a base, a seat and a transmission mechanism, wherein the display screen is arranged on the table board, the seat is arranged on the base, the transmission mechanism is connected with the table board, the transmission mechanism comprises a lifting component, a rotating component and a table board folding component, the lifting component comprises a first driving motor, a first belt pulley, a second belt pulley, a first belt, a second belt, a rotating driving belt pulley, a lifting screw gear, a lifting screw, a lifting sleeve and a lifting frame, a main shaft of the first driving motor is sleeved in the first belt pulley, the first belt pulley is connected with the second belt pulley through the first belt, the second belt pulley is connected with the rotating driving belt pulley through the second belt, the lifting screw gear is fixedly connected with the rotating driving belt pulley, one end of the lifting screw is sleeved in the lifting screw gear, the other end of the lifting screw is in threaded connection with the lifting sleeve, the lifting frame is sleeved in the lifting sleeve, and the top end of the lifting frame is connected with the table plate.

Description

Movable english teaching show stand

Technical Field

The invention relates to the technical field of teaching equipment, and particularly discloses a movable English teaching display stand.

Background

Along with the increasingly embodied importance of English, various English teaching aids are produced. In the teaching and the study of english, the teaching show stand that is used for the display function of english word, phrase and article uses very generally in teaching and studying, and the mr shows on the show board on the teaching show stand with those english word groups of putting in order, helps the student to study. And because student's seat distributes around the classroom usually, when the show, the classmate of sitting in the corner can't see the show board usually clearly, thereby lose interest to english study, lead to english score straight line gliding, and the mr is usually in class, need write the characters with the chalk and help the cooperation english to teach, and can wet the arranging of placing of not being convenient for of meeting the tide during chalk moist weather, make the chalk clear up not convenient for simultaneously, the environment influence mr's that makes a bad difference teaching quality, in addition, current english teaching show platform can not fold, occupation space is big.

Therefore, the above-mentioned defects of the existing english teaching display platform are a technical problem to be solved urgently.

Disclosure of Invention

The invention provides a movable English teaching display stand, and aims to solve the technical problem of the defects of the existing English teaching display stand.

The invention provides a movable English teaching display platform, which comprises a table plate, a display screen, a base, a seat and a transmission mechanism, wherein the display screen is arranged on the table plate, the seat is arranged on the base, the transmission mechanism is connected with the table plate, the transmission mechanism comprises a lifting component, a rotating component and a table plate folding component, the lifting component comprises a first driving motor, a first belt pulley, a second belt pulley, a first belt, a second belt, a rotating driving belt pulley, a lifting screw gear, a lifting screw, a lifting sleeve and a lifting frame, a main shaft of the first driving motor is sleeved in the first belt pulley, the first belt pulley is connected with the second belt pulley through the first belt, the second belt pulley is connected with the rotating driving belt pulley through the second belt, the lifting screw gear is fixedly connected with the rotating driving belt pulley, one end of the lifting screw is sleeved in the lifting screw gear, and the other end of the lifting screw is in threaded connection with the lifting sleeve, the lifting frame is sleeved in the lifting sleeve, and the top end of the lifting frame is connected with the table plate.

Furthermore, the lifting screw gear comprises a first lifting screw gear, a second lifting screw gear and a third lifting screw gear, the lifting screw comprises a first lifting screw and a second lifting screw, the rotary driving belt wheel comprises a first rotary driving belt wheel, a second rotary driving wheel and a third rotary driving wheel, the lifting sleeve comprises a first lifting sleeve hole and a second lifting sleeve hole which are arranged on two sides, the first lifting screw and the second lifting screw are arranged on two sides of the lifting frame, the first rotary driving belt wheel is connected with the first belt wheel through a second belt, the first lifting screw gear is coaxially and fixedly connected with the first rotary driving belt wheel, the first lifting screw gear is meshed with the second lifting screw gear, the second lifting screw gear is coaxially and fixedly connected with the second rotary driving wheel, the second rotary driving wheel is connected with the third rotary driving wheel through a third belt, the third rotary driving wheel is coaxially and fixedly connected with the third lifting screw gear, one end of the first lifting screw is fixedly sleeved in the second lifting screw gear, and the other end of the first lifting screw is in threaded connection with the first lifting sleeve hole; one end of the second lifting screw is fixedly sleeved in the third lifting screw gear, and the other end of the second lifting screw is in threaded connection with the second lifting sleeve hole.

Further, the rotating assembly comprises a second driving motor, a third belt pulley, a fourth belt, a fifth belt, a fourth rotary driving belt pulley, a rotary driving gear and a rotary driving shaft seat, a spindle sleeve of the second driving motor is arranged in the third belt pulley, the third belt pulley and the fourth belt pulley are connected through the fourth belt, the fourth belt pulley and the fourth rotary driving belt pulley are connected through the fifth belt, the fourth rotary driving belt pulley and the rotary driving gear are coaxially and fixedly connected, the rotary driving gear is meshed with the rotary driving shaft seat, the rotary driving shaft seat is sleeved in the lifting frame and can move up and down relative to the lifting frame.

Further, the table folding assembly comprises a third driving motor, a fifth belt pulley, a sixth belt, a seventh belt, a sliding sleeve axis belt pulley, a sliding sleeve axis, a folding driving sliding sleeve, a reversing bevel gear and a folding driving shaft, wherein a main shaft sleeve of the third driving motor is arranged in the fifth belt pulley, the fifth belt pulley is connected with the sixth belt pulley through the sixth belt, the sixth belt pulley is connected with the sliding sleeve axis belt pulley through the seventh belt, one end of the sliding sleeve axis is fixedly sleeved in the sliding sleeve axis belt pulley, the other end of the sliding sleeve axis is sleeved in the folding driving sliding sleeve and can move up and down relative to the folding driving sliding sleeve, one end of the reversing bevel gear is fixedly sleeved in the folding driving sliding sleeve, the other end of the reversing bevel gear is fixedly sleeved in the folding driving shaft, and the folding driving shaft is connected with the table.

Furthermore, the table plate comprises a fixed table plate, a first folding table plate and a second folding table plate, the first folding table plate and the second folding table plate are respectively hinged with two side edges of the fixed table plate, the table plate folding assembly further comprises a driving disc, a first connecting rod and a second connecting rod, the driving disc is sleeved in a folding driving shaft, a first rotating shaft and a second rotating shaft are arranged on the driving disc, one end of the first connecting rod is rotatably connected with the first rotating shaft, and the other end of the first connecting rod is rotatably connected with the first folding table plate in a switching mode; one end of the second connecting rod is rotatably connected with the second rotating shaft, and the other end of the second connecting rod is rotatably connected with the second folding table plate.

Furthermore, the reversing bevel gear comprises a first reversing bevel gear and a second reversing bevel gear which are arranged at a right angle, the first reversing bevel gear is fixedly connected with the folding driving sliding sleeve, and the second reversing bevel gear is fixedly connected with the folding driving shaft.

Further, movable english teaching show stand still includes wireless charging coil, battery and wireless receiving panel, and wireless charging coil passes through wireless receiving panel and is connected with the storage battery electricity.

Further, the seat is the box-shaped setting, including the box and the flip that the rotatory lid fits on the box, first driving motor, second driving motor, third driving motor and battery are located in the box respectively.

Further, the bottom of base is equipped with a plurality of gyro wheels.

Further, the display screen is touch display screen, and display screen swivelling joint is equipped with the screen holding tank that is used for accomodating the display screen on fixed table and the fixed table.

The beneficial effects obtained by the invention are as follows:

the invention provides a movable English teaching display platform, which adopts a table board, a display screen, a base, a seat and a transmission mechanism, wherein the transmission mechanism comprises a lifting component, a rotating component and a table board folding component, the lifting component comprises a first driving motor, a first belt pulley, a second belt pulley, a first belt, a second belt, a rotating driving belt pulley, a lifting screw gear, a lifting screw, a lifting sleeve and a lifting frame, a main shaft of the first driving motor is sleeved in the first belt pulley, the first belt pulley is connected with the second belt pulley through the first belt, the second belt pulley is connected with the rotating driving belt pulley through the second belt, the lifting screw gear is fixedly connected with the rotating driving belt pulley, one end of the lifting screw is sleeved in the lifting screw gear, the other end of the lifting screw is connected with the lifting sleeve through screw threads, the lifting frame is sleeved in the lifting sleeve, and the top end of the lifting frame is connected with the table board, drive the crane through a driving motor and be vertical elevating movement, fold movable english teaching show stand. The movable English teaching display stand provided by the invention improves the teaching environment and improves the teaching quality; convenient use and small occupied space.

Drawings

FIG. 1 is a schematic perspective view of a movable English teaching display stand according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of a first view of a mobile English teaching display stand according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of a second view of the mobile English teaching display stand according to the first embodiment of the present invention;

FIG. 4 is a schematic diagram of the internal structure of a third view of the mobile English teaching display stand according to the first embodiment of the present invention;

FIG. 5 is a schematic diagram of the fourth view of the mobile English teaching display stand according to the present invention;

FIG. 6 is a cross-sectional view taken along plane A-A of FIG. 5;

fig. 7 is a schematic structural diagram of a second embodiment of the mobile english teaching display stand according to the present invention:

FIG. 8 is a cross-sectional view taken along plane B-B of FIG. 7;

fig. 9 is a schematic structural diagram of a movable english teaching display stand according to a third embodiment of the present invention:

FIG. 10 is a cross-sectional view taken along plane C-C of FIG. 9;

fig. 11 is a schematic structural diagram of a movable english teaching display stand according to a fourth embodiment of the present invention:

FIG. 12 is a cross-sectional view taken along plane D-D of FIG. 11;

FIG. 13 is a schematic perspective view of a first view of a fifth embodiment of the mobile English teaching display stand according to the present invention;

FIG. 14 is a schematic perspective view of a fifth embodiment of a mobile English teaching display stand according to the present invention;

FIG. 15 is a schematic perspective view of a third view of a fifth embodiment of a mobile English teaching display stand according to the present invention;

fig. 16 is a schematic perspective view of a movable english teaching display stand according to a sixth embodiment of the present invention.

The reference numbers illustrate:

10. a table plate; 20. a display screen; 30. a base; 40. a seat; 50. a transmission mechanism; 51. a lifting assembly; 52. a rotating assembly; 53. a table folding assembly; 511. a first drive motor; 5121. a first pulley; 5122. a second pulley; 513. a first belt; 514. a second belt; 515. a rotation driving pulley; 516. a lifting screw gear; 517. lifting a screw rod; 518. a lifting sleeve; 519. a lifting frame; 5161. a first lifting screw gear; 5162. a second lifting screw gear; 5163. a third lifting screw gear; 5171. a first lifting screw; 5172. a second lifting screw; 5151. a first rotary drive pulley; 5152. a second rotary drive wheel; 5153. a third rotary drive wheel; 5154. a third belt; 5181. a first lifting trepan boring; 5182. a second lifting trepan boring; 521. a second drive motor; 5221. a third belt pulley; 5222. a fourth belt pulley; 523. a fourth belt; 524. a fifth belt; 525. a fourth rotary drive pulley; 526. a rotary drive gear; 527. a rotary drive shaft seat; 531. a third drive motor; 5321. a fifth belt pulley; 5322. a sixth belt pulley; 5331. a sixth belt; 5332. a seventh belt; 534. a sliding sleeve axis pulley; 5351. the axis of the sliding sleeve; 5352. folding the driving sliding sleeve; 536. a reversing bevel gear; 537. folding the drive shaft; 11. fixing the table plate; 12. a first folding table; 13. a second folding table; 538. a drive disc; 5391. a first link; 5392. a second link; 5361. a first reversing bevel gear; 5362. a second reversing bevel gear; 60. a storage battery; 70. a wireless receiving board; 41. a box body; 42. a cover is turned; 31. roller: 111. and a screen accommodating groove.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 6, a first embodiment of the present invention provides a movable english teaching display platform, which includes a table 10, a display 20, a base 30, a seat 40 and a transmission mechanism 50, wherein the display 20 is disposed on the table 10, the seat 40 is mounted on the base 30, the transmission mechanism 50 is connected to the table 10, the transmission mechanism 50 includes a lifting component 51, a rotating component 52 and a table folding component 53, the lifting component 51 includes a first driving motor 511, a first belt pulley 5121, a second belt pulley 5122, a first belt 513, a second belt 514, a rotary driving pulley 515, a lifting screw gear spindle 516, a lifting screw 517, a lifting sleeve 518 and an 519, the lifting frame of the first driving motor 511 is sleeved in the first belt pulley 5121, the first belt pulley 5121 and the second belt pulley 5122 are connected by the first belt 513, the second belt pulley 5122 is connected to the rotary driving pulley 515 by the second belt 514, elevating screw gear 516 and rotatory driving pulley 515 fixed connection, elevating screw 517's pot head is located in elevating screw gear 516, elevating screw 517's the other end and elevating sleeve 518 threaded connection, in elevating sleeve 518 and the top of crane 519 is located to crane 519 cover is connected with table 10, in this embodiment, drive crane 519 through a driving motor 511 and be vertical elevating movement, it is folding to movable english teaching show stand, degree of automation is high, convenient to use and occupation space are little.

In the above structure, please refer to fig. 1 to 16, in the movable english teaching platform according to this embodiment, the lifting screw gear 516 includes a first lifting screw gear 5161, a second lifting screw gear 5162 and a third lifting screw gear 5163, the lifting screw 517 includes a first lifting screw 5171 and a second lifting screw 5172, the rotary driving pulley 515 includes a first rotary driving pulley 5151, a second rotary driving pulley 5152 and a third rotary driving pulley 5153, the lifting sleeve 518 includes a first lifting sleeve hole 5181 and a second lifting sleeve hole 5182 disposed on two sides, the first lifting screw 5171 and the second lifting screw 5172 are disposed on two sides of the lifting frame 519, the first rotary driving pulley 5151 and the first pulley 5121 are connected by a second belt 514, the first lifting screw gear 5161 is coaxially and fixedly connected with the first rotary driving pulley 5151, the first lifting screw gear 5161 is engaged with the second lifting screw gear 5162, the second lifting screw gear 5162 is coaxially and fixedly connected with the second rotary driving wheel 5152, the second rotary driving wheel 5152 is connected with the third rotary driving wheel 5153 through a third belt 5154, the third rotary driving wheel 5153 is coaxially and fixedly connected with the third lifting screw gear 5163, one end of the first lifting screw 5171 is fixedly sleeved in the second lifting screw gear 5162, and the other end of the first lifting screw 5171 is in threaded connection with the first lifting trepan 5181; one end of the second lifting screw 5172 is fixedly sleeved in the third lifting screw gear 5163, and the other end of the second lifting screw 5172 is in threaded connection with the second lifting sleeve hole 5182. In this embodiment, the lifting sleeve 518 is synchronously and stably lifted or lowered through the first lifting screw 5171 and the second lifting screw 5172 which are axisymmetric, so that the movable english teaching display stand automatically extends or retracts, and the movable english teaching display stand is high in automation degree and good in stability.

Further, referring to fig. 1 to 16, in the mobile english teaching display stand provided in this embodiment, the rotating assembly 52 includes a second driving motor 521, a third belt pulley 5221, a fourth belt pulley 5222, a fourth belt 523, a fifth belt 524, a fourth rotary driving pulley 525, a rotary driving gear 526 and a rotary driving shaft seat 527, the main shaft of the second driving motor 521 is sleeved in the third belt pulley 5221, the third belt pulley 5221 and the fourth belt pulley 5222 are connected through the fourth belt 523, the fourth belt pulley 5222 and the fourth rotary driving pulley 525 are connected through the fifth belt 524, the fourth rotary driving pulley 525 and the rotary driving gear 526 are coaxially and fixedly connected, the rotary driving gear 526 is engaged with the rotary driving shaft seat 527, and the rotary driving shaft seat 527 is sleeved in the lifting frame 519 and can move up and down relative to the lifting frame 519. In this embodiment, the second driving motor 521 drives the rotation driving shaft seat 527 to rotate, so as to rotate the table board 10 freely, so as to adapt to a sitting posture state, a standing state or a discussion state of a user, and the desk has high automation degree and small occupied space.

Preferably, referring to fig. 1 to 16, in the movable english teaching display stand provided in this embodiment, the table folding assembly 53 includes a third driving motor 531, a fifth belt pulley 5321, a sixth belt pulley 5322, a sixth belt 5331, a seventh belt 5332, a sliding sleeve shaft pulley 534, a sliding sleeve shaft 5351, a folding driving sliding sleeve 5352, a reversing bevel gear 536, and a folding driving shaft 537, a main shaft of the third driving motor 531 is sleeved in the fifth belt pulley 5321, the fifth belt pulley 5321 and the sixth belt pulley 5322 are connected by the sixth belt 5331, the sixth belt pulley 5322 and the sliding sleeve shaft pulley 534 are connected by the seventh belt 5332, one end of the sliding sleeve shaft 5351 is fixedly sleeved in the sliding sleeve pulley shaft 534, the other end of the sliding sleeve shaft 5351 is sleeved in the folding driving sliding sleeve 5352 and can move up and down relative to the folding driving sliding sleeve 5352, one end of the reversing bevel gear 536 is fixedly sleeved in the folding driving sliding sleeve 5352, the other end of the reversing bevel gear 536 is fixedly sleeved in a folding driving shaft 537, and the folding driving shaft 537 is connected with the table plate 10. Further, the table board 10 comprises a fixed table board 11, a first folding table board 12 and a second folding table board 13, the first folding table board 12 and the second folding table board 13 are hinged to two sides of the fixed table board 11 respectively, the table board folding assembly 53 further comprises a driving board 538, a first connecting rod 539l and a second connecting rod 5392, the driving board 538 is sleeved in a folding driving shaft 537, a first rotating shaft and a second rotating shaft are arranged on the driving board 538, one end of the first connecting rod 5391 is rotatably connected with the first rotating shaft, and the other end of the first connecting rod 5391 is rotatably connected with the first folding table board 12; one end of the second link 5392 is rotatably connected to the second rotation shaft, and the other end of the second link 5392 is rotatably connected to the second folding table 13. Specifically, the reversing bevel gear 536 includes a first reversing bevel gear 5361 and a second reversing bevel gear 5362 disposed at a right angle, the first reversing bevel gear 5361 is fixedly connected to the folding driving sliding sleeve 5352, and the second reversing bevel gear 5362 is fixedly connected to the folding driving shaft 537. In this embodiment, the table folding assembly 53 is driven by the third driving motor 531 to move, so as to separate or splice the first folding table 12 and the second folding table 13 to two sides of the fixed table 11, which has high automation degree and small occupation space, and the user can adapt to a sitting posture state, a standing state or a discussion state in real time.

Further, please see fig. 1 to fig. 16, the movable english teaching display stand provided in this embodiment further includes a wireless charging coil, a battery 60 and a wireless receiving board 70, wherein the wireless charging coil is electrically connected to the battery 60 through the wireless receiving board 70. The seat 40 is disposed in a box shape, and includes a box 41 and a lid 42 rotatably covering the box 41, and the first driving motor 511, the second driving motor 521, the third driving motor 531 and the battery 60 are respectively disposed in the box 41. The flap 42 of the seat 40 can be opened and the interior stored. The bottom of base 30 is equipped with a plurality of gyro wheels 31, the movable english teaching show stand round trip movement of being convenient for. In this embodiment, the display screen 20 is a touch display screen, and the display screen 20 is rotatably connected to the fixed table 11 and the fixed table 11 is provided with a screen accommodating groove 111 for accommodating the display screen 20. In this embodiment, the touch display screen is used for operating and displaying data, and when not in use, the touch display screen can be stored and hidden in the screen accommodating groove 111, so that the space is not occupied.

As shown in fig. 1 to fig. 16, the mobile english teaching display stand provided by this embodiment has the working principle:

a plurality of rollers 31 are arranged below the movable English teaching display platform and can be pushed to walk at will. There is wireless charging coil whole movable english teaching show stand below, can charge for battery 60 in the assigned position. The movable English teaching display platform is provided with a seat 40 and a table plate 10. When not in use, the table 10 may be folded and lowered. The flap 42 of the seat 40 can be opened and the interior stored. The first, second and

third driving motors

511, 521, 531 and the battery 60 are installed at the bottom of the seat 40. The first driving motor 511 is finally connected with the lifting screw gear 516 through a first belt pulley 5121, a first belt 513, a second belt pulley 5122, a second belt 514 and a rotary driving belt pulley 515 to drive the lifting screw 517. Finally, the lifting frame 519 and the table board 10 are driven to move upwards integrally. The second driving motor 521 can also drive the rotation driving gear 526 to drive the rotation driving shaft seat 527 to rotate, and then the whole table 10 can rotate. The folding and unfolding of the table board 10 can be driven by a third driving motor 531 through a sliding sleeve axle center pulley 534 via a first connecting rod 5391, a second connecting rod 5392, a driving disk 538, a folding driving shaft 537, a second reversing bevel gear 5362, a first reversing bevel gear 5361, and finally a folding driving sliding sleeve 5352. The display stand is lifted and rotated to different positions, so that a user can be in three states of a sitting state, a standing state and a discussion state. The display table is also provided with a touch display screen which is used for operating and displaying data.

Compared with the prior art, the movable English teaching display platform provided by the embodiment adopts a table, a display screen, a base, a seat and a transmission mechanism, the transmission mechanism comprises a lifting component, a rotating component and a table folding component, the lifting component comprises a first driving motor, a first belt pulley, a second belt pulley, a first belt, a second belt, a rotary driving belt pulley, a lifting screw gear, a lifting screw, a lifting sleeve and a lifting frame, a main shaft of the first driving motor is sleeved in the first belt pulley, the first belt pulley is connected with the second belt pulley through the first belt, the second belt pulley is connected with the rotary driving belt pulley through the second belt, the lifting screw gear is fixedly connected with the rotary driving belt pulley, one end of the lifting screw is sleeved in the lifting screw gear, the other end of the lifting screw is in threaded connection with the lifting sleeve, the lifting frame is sleeved in the lifting sleeve, and the top end of the lifting frame is connected with the table, drive the crane through a driving motor and be vertical elevating movement, fold movable english teaching show stand. The movable English teaching display stand provided by the invention improves the teaching environment and improves the teaching quality; convenient use and small occupied space.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The movable English teaching display platform is characterized by comprising a table plate (10), a display screen (20), a base (30), a seat (40) and a transmission mechanism (50), wherein the display screen (20) is arranged on the table plate (10), the seat (40) is arranged on the base (30), the transmission mechanism (50) is connected with the table plate (10), the transmission mechanism (50) comprises a lifting component (51), a rotating component (52) and a table plate folding component (53), the lifting component (51) comprises a first driving motor (511), a first belt pulley (5121), a second belt pulley (5122), a first belt (513), a second belt (514), a rotary driving belt pulley (515), a lifting screw gear (516), a lifting screw (517), a lifting sleeve (518) and a lifting frame (519), a main shaft sleeve of the first driving motor (511) is arranged in the first belt pulley (5121), first belt pulley (5121) with second belt pulley (5122) passes through first belt (513) are connected, second belt pulley (5122) with rotatory driving pulley (515) pass through second belt (514) are connected, lift lead screw gear (516) with rotatory driving pulley (515) fixed connection, the pot head of lift lead screw (517) is located in lift lead screw gear (516), the other end of lift lead screw (517) with lift cover (518) threaded connection, crane (519) cover is located in lift cover (518) just the top of crane (519) with table board (10) are connected.

2. The mobile english teaching display stand of claim 1, wherein the elevation screw gear (516) comprises a first elevation screw gear (5161), a second elevation screw gear (5162) and a third elevation screw gear (5163), the elevation screw (517) comprises a first elevation screw (5171) and a second elevation screw (5172), the rotation driving pulley (515) comprises a first rotation driving pulley (5151), a second rotation driving pulley (5152) and a third rotation driving pulley (5153), the elevation sleeve (518) comprises a first elevation sleeve hole (5181) and a second elevation sleeve hole (5182) disposed at both sides, the first elevation screw (5171) and the second elevation screw (5172) are disposed at both sides of the elevation frame (519), the first rotation driving pulley (5151) and the first pulley (5121) are connected through the second belt (514), the first lifting screw gear (5161) is coaxially and fixedly connected with the first rotary driving pulley (5151), the first lifting screw gear (5161) is engaged with the second lifting screw gear (5162), the second lifting screw gear (5162) is coaxially and fixedly connected with the second rotary driving wheel (5152), the second rotary driving wheel (5152) is connected with the third rotary driving wheel (5153) through a third belt (5154), the third rotary driving wheel (5153) is coaxially and fixedly connected with the third lifting screw gear (5163), one end of the first lifting screw (5171) is fixedly sleeved in the second lifting screw gear (5162), and the other end of the first lifting screw (5171) is in threaded connection with the first lifting sleeve hole (5181); one end of the second lifting screw (5172) is fixedly sleeved in the third lifting screw gear (5163), and the other end of the second lifting screw (5172) is in threaded connection with the second lifting sleeve hole (5182).

3. The mobile English teaching display stand of claim 1, wherein the rotating assembly (52) comprises a second driving motor (521), a third belt pulley (5221), a fourth belt pulley (5222), a fourth belt (523), a fifth belt (524), a fourth rotary driving pulley (525), a rotary driving gear (526) and a rotary driving shaft seat (527), the main shaft of the second driving motor (521) is sleeved in the third belt pulley (5221), the third belt pulley (5221) and the fourth belt pulley (5222) are connected through the fourth belt (523), the fourth belt pulley (5222) and the fourth rotary driving pulley (525) are connected through the fifth belt (524), the fourth rotary driving pulley (525) and the rotary driving gear (526) are coaxially and fixedly connected, and the rotary driving gear (526) is engaged with the rotary driving shaft seat (527), the rotary driving shaft seat (527) is sleeved in the lifting frame (519) and can move up and down relative to the lifting frame (519).

4. The mobile English teaching display stand of claim 3, wherein the table folding assembly (53) comprises a third driving motor (531), a fifth belt pulley (5321), a sixth belt pulley (5322), a sixth belt pulley (5331), a seventh belt (5332), a sliding sleeve axle pulley (534), a sliding sleeve axle (5351), a folding driving sliding sleeve (5352), a reversing bevel gear (536), and a folding driving shaft (537), wherein a main shaft of the third driving motor (531) is sleeved in the fifth belt pulley (5321), the fifth belt pulley (5321) and the sixth belt pulley (5322) are connected by the sixth belt (5331), the sixth belt pulley (5322) and the sliding sleeve axle pulley (534) are connected by the seventh belt pulley (5332), one end of the sliding sleeve axle (5351) is fixedly sleeved in the sliding sleeve axle pulley (534), the other end cover of sliding sleeve axle center (5351) is located just can be relative in folding drive sliding sleeve (5352) reciprocate, the fixed cover of one end of switching-over bevel gear (536) is located in folding drive sliding sleeve (5352), the fixed cover of the other end of switching-over bevel gear (536) is located in folding drive shaft (537), folding drive shaft (537) with table (10) are connected.

5. The mobile English teaching display stand of claim 4, wherein the table (10) comprises a fixed table (11), a first folding table (12) and a second folding table (13), the first folding table (12) and the second folding table (13) are hinged to two sides of the fixed table (11), the table folding assembly (53) further comprises a driving plate (538), a first connecting rod (5391) and a second connecting rod (5392), the driving plate (538) is sleeved in the folding driving shaft (537), a first rotating shaft and a second rotating shaft are arranged on the driving plate (538), one end of the first connecting rod (5391) is rotatably connected with the first rotating shaft, and the other end of the first connecting rod (5391) is rotatably connected with the first folding table (12); one end of the second connecting rod (5392) is rotatably connected with the second rotating shaft, and the other end of the second connecting rod (5392) is rotatably connected with the second folding table (13).

6. The portable english teaching display stand according to claim 4, wherein the bevel direction gear (536) comprises a first bevel direction gear (5361) and a second bevel direction gear (5362) disposed at a right angle, the first bevel direction gear (5361) is fixedly connected to the folding driving sliding sleeve (5352), and the second bevel direction gear (5362) is fixedly connected to the folding driving shaft (537).

7. The mobile english teaching display stand of claim 4, wherein the mobile english teaching display stand further comprises a wireless charging coil, a battery (60) and a wireless receiving board (70), the wireless charging coil is electrically connected with the battery (60) through the wireless receiving board (70).

8. The mobile english teaching display according to claim 7, wherein the seat (40) is in a box shape and comprises a box body (41) and a lid (42) rotatably covering the box body (41), and the first driving motor (511), the second driving motor (521), the third driving motor (531) and the battery (60) are respectively disposed in the box body (41).

9. The mobile english teaching display stand according to claim 7, wherein the bottom of the base (30) is provided with a plurality of rollers (31).

10. The mobile English teaching display stand of claim 5, wherein the display screen (20) is a touch display screen, the display screen (20) is rotatably connected to the fixed table (11) and the fixed table (11) is provided with a screen accommodating groove (111) for accommodating the display screen (20).