Movable English teaching electronic display device

Abstract

The invention relates to the technical field of teaching equipment. A movable English teaching electronic display device disclosed by the present invention comprises a mobile vehicle body and a screen placement table, the two sides of the top of the screen placement table are movably arranged at the top of the mobile vehicle body through telescopic rods, the bottom of the mobile vehicle body is provided with a driving assembly, and the side end of the driving assembly is provided with a protection device. A linkage assembly is arranged on one side of the protection device, a stabilizing assembly is arranged on the linkage assembly, a locking assembly is arranged on one side of the stabilizing assembly and located on the mobile vehicle body, and the protection device comprises a trigger assembly and a switch assembly. Through work of the protection device and the stabilizing assembly, the height can be changed according to the moving speed while the screen is protected in the moving process, so that the safety and the stability are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching equipment, and specifically relates to a movable English teaching electronic display device. Background Art

[0002] Currently, inside schools, in order to better conduct indoor English teaching, dedicated English electronic display devices are usually set up. Through these English electronic display devices, students can quickly master relevant English grammar and vocabulary.

[0003] In the prior art, when using an English display device, it is usually moved to a convenient teaching position during breaks. During the movement, the screen on the English display device is often damaged, resulting in low safety. At the same time, since the English display device usually has a certain height, when the moving speed is too fast, it is easy to cause the device to tip over, resulting in insufficient stability. Therefore, a device is needed that can protect the screen during movement and change the height according to the moving speed to avoid low safety and insufficient stability. Summary of the Invention

[0004] The purpose of the present invention is to provide a movable English teaching electronic display device to solve the problems raised in the above background art. To achieve the above purpose, the present invention provides the following technical solution: A movable English teaching electronic display device includes a moving vehicle body and a screen placement platform. The two sides of the top of the screen placement platform are movably arranged on the top of the moving vehicle body through telescopic rods. A driving component is provided at the bottom of the moving vehicle body. A protection device is provided at the side end of the driving component. A linkage component is provided on one side of the protection device. A stability component is provided on the linkage component. A locking component is provided on one side of the stability component and is located on the moving vehicle body. The protection device includes a triggering component and a switch component. The triggering component is provided at the side end of the driving component. The switch component is provided on one side of the triggering component and is located at the side end of the screen placement platform.

[0005] Preferably, the driving component includes a driving gear ring sleeved on a power rod in the moving vehicle body. A driving frame is provided inside the moving vehicle body. The two sides of the driving frame are fixedly connected to the inner wall of the moving vehicle body. An L-shaped frame is provided on the side of the driving frame close to the driving gear ring. A vertically arranged first bevel gear is rotatably connected to the L-shaped frame. The side end of the first bevel gear is meshed with the side end of the driving gear ring. The top of the first bevel gear is meshed with the side end of a second bevel gear. The second bevel gear is rotatably arranged at the side end of the L-shaped frame through a rotating shaft. The second bevel gear is horizontal. A transmission member is rotatably connected to the center of the driving frame through a rotating shaft. The transmission member and the rotating shaft are movably connected through a transmission belt. The top of the rotating shaft is connected to the top inside the moving vehicle body.

[0006] The two ends of the L-shaped connecting rod are respectively hinged on the top of the L-shaped connecting rod and the bottom of the L-shaped connecting rod is hinged on the top of the L-shaped connecting rod.

[0007] Preferably, a through groove is provided on the moving body, and a resistance rod is slidably provided in the through groove, and the bottom of the resistance rod is connected to a vertically arranged passive wedge block, and the bottom of the passive wedge block is located inside the moving body and above the wedge block. When the wedge block moves upward, it can drive the passive wedge block and the resistance rod to slide in the through groove, and the side end of the resistance rod is movably connected to the inner wall of the through groove by a telescopic spring, and a vertically arranged card rod is provided on the top of the resistance rod, and a horizontally arranged toggle rod is provided on the side of the card rod close to the screen placement table.

[0008] Preferably, the switch assembly includes a placement slot, which is opened on the top of the screen placement platform, and fixed plates are symmetrically provided on both sides of the bottom of the screen placement platform. A reaction shaft is rotatably connected between the two fixed plates, and the end of the reaction shaft close to the toggle rod is connected to the center of the reaction disk. Two matching rods are symmetrically provided on the side of the reaction disk away from the screen placement platform, and two reaction rods are symmetrically provided on the side of the reaction disk close to the screen placement platform. Each of the reaction rods is hinged to the telescopic end of a spring telescopic rod, and the tail of the spring telescopic rod is hinged to the side end of the fixed plate. The two spring telescopic rods are arranged parallel to each other.

[0009] Preferably, the end of the reaction shaft away from the toggle rod is connected to the center of the control disk, and auxiliary rods are symmetrically provided on both sides of the control disk, the ends of the auxiliary rods are hinged to the side ends of the adjacent fixed plates, and the top of the auxiliary rods is hinged to the bottom of the cover plate, and the two cover plates are arranged at an angle away from each other, and the top of the placement groove is provided with a card groove that matches the cover plate, and the size of the combination of the two fixed plates matches the size of the placement groove, and the side of the bottom of the cover plate away from the auxiliary rod is hinged to the end of the L-shaped support rod, the middle part of the L-shaped support rod is hinged to the side end of the fixed plate, and the bottom of the L-shaped support rod is hinged with a pull rod, and the other end of the pull rod is hinged to the side end of the control disk.

[0010] Preferably, the linkage assembly includes a linkage frame, which is arranged on the driving frame and the side end of the linkage frame is connected to the inner wall of the mobile vehicle body, a linkage sleeve is rotatably connected in the linkage frame and is located on the outside of the two gravity balls, and protrusions are symmetrically provided inside the linkage sleeve, and a plurality of toggle blocks are evenly distributed on the top of the linkage sleeve, a sleeve rod is provided at the side end of the linkage sleeve and is rotatably arranged on the linkage frame, a plurality of connecting blocks cooperating with the toggle blocks are evenly distributed on the side end of the bottom of the sleeve rod, and the top of the sleeve rod is open, and a plurality of first spring blocks are evenly distributed inside the top of the sleeve rod.

[0011] Preferably, the stabilizing assembly includes a support rod, which is vertically arranged at the center of the bottom of the screen placement table, and the bottom of the support rod is slidably arranged in the through hole of the mobile body through a horizontally arranged fixed rod, and the support rod is rotatably matched with the reaction shaft, and a rotating sleeve is rotatably connected in the through hole, and the rotating sleeve is rotatably arranged on the outside of the support rod, and the side end of the rotating sleeve is movably connected to the inner wall of the through hole through a coil spring, and the side end of the rotating sleeve is provided with an arc groove, and the fixed rod is slidably arranged in the arc groove, and the bottom of the rotating sleeve is connected to the matching sleeve and is located inside the sleeve rod, and a number of arc openings are evenly opened around the matching sleeve, and the movable end of each of the first spring blocks is respectively clamped in an arc opening.

[0012] Preferably, the locking assembly includes a ratchet, which is arranged on the top of the mobile body and sleeved on the outside of the top of the rotating sleeve. A locking rod is provided at the side end of the clamping rod. The end of the locking rod away from the clamping rod is clamped in the tooth groove end of the ratchet through a second spring clamping block. A reset rod is provided below the toggle rod, and the side end of the reset rod is connected to the side end of the clamping rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, when the device is in use, during short-distance movement, the driving component drives the switch component to work, thereby protecting the surface of the screen placement table from being blocked, so as to avoid damaging the screen during the movement process, improving the safety of the device. During long-distance movement, when the moving speed increases with the change of distance, after protecting the surface of the screen placement table, the height of the screen placement table is lowered, reducing the center of gravity of the device, and thus facilitating the rapid movement of the device, thereby avoiding the possibility of the device tipping over when the moving speed is too fast, and at the same time avoiding the problem of the device being bumped and difficult to move due to its high height, and then improving the stability during movement. Thus, it realizes the effect of being able to protect the screen during the movement process and change the height according to the moving speed to avoid low safety and insufficient stability.

[0015] In the present invention, through the provided driving component and switch component, when the moving vehicle body moves short distances and at a slow speed, only the surface of the screen in the placement slot is blocked and protected, and continuous movement is carried out after the protection, so as to avoid damaging the screen during the movement process, improving the safety of the device.

[0016] In the present invention, through the provided protection device and stability component, during long-distance movement, when the moving speed increases with the change of distance, after protecting the screen and blocking it, its position is synchronously lowered, thereby reducing the center, and thus facilitating the rapid movement of the device, thereby avoiding the possibility of the device tipping over when the moving speed is too fast, and at the same time avoiding the problem of the device being bumped and difficult to move due to its high height, and then improving the stability during movement. At the same time, after the moving vehicle body moves to the designated position and stops, the device automatically completes at this time, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 is a partial cross-section of the present invention Figure 1 ;

[0019] Figure 3 is a partial exploded three-dimensional structural diagram of the present invention;

[0020] Figure 4 is a cross-section of the moving vehicle body in the present invention Figure 1 ;

[0021] Figure 5 is Figure 4 an enlarged schematic diagram of area A in

[0022] Figure 6 is a cross-section of the moving vehicle body in the present invention Figure 2 ;

[0023] Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0024] Figure 8 This is a schematic diagram of a partially exploded three-dimensional structure of a switch assembly in the present invention;

[0025] Figure 9 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0026] Figure 10 is a cross-sectional view of the linkage frame of the present invention;

[0027] Figure 11 A partial cross-sectional view of the present invention Figure 2 ;

[0028] Figure 12 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 .

[0029] In the figure: 1. moving body; 2. screen placement table; 3. telescopic rod; 4. driving assembly; 41. driving gear ring; 42. power rod; 43. driving frame; 44. L-shaped frame; 45. first bevel gear; 46. second bevel gear; 47. rotating shaft; 48. rotating shaft; 49. transmission member; 50. transmission belt; 6. protection device; 61. trigger assembly; 611. slot; 612. L-shaped connecting rod; 613. gravity ball; 614. articulated frame; 615. linkage rod; 616. matching ring; 617. driving rod; 618. reference frame; 619. rectangular frame; 620. wedge block; 621. sliding frame; 622. through slot; 623. contact rod; 624. passive wedge block; 625. telescopic spring; 626. clamping rod; 627. toggle rod; 63. : Switch assembly; 631, placement slot; 632, fixing plate; 633, reaction shaft; 634, reaction disk; 635, matching rod; 636, reaction rod; 637, spring telescopic rod; 638, control disk; 639, auxiliary rod; 640, cover plate; 641, card slot; 642, L-shaped support rod; 643, pull rod; 7, linkage assembly; 71, linkage frame; 72, linkage sleeve; 73, protrusion; 74, toggle block; 75, sleeve rod; 76, connecting block; 77, first spring block; 8, stabilizing assembly; 81, support rod; 82, fixing rod; 83, through hole; 84, rotating sleeve; 85, coil spring; 86, arc groove; 87, matching sleeve; 88, arc opening; 9, locking assembly; 91, ratchet; 92, locking rod; 93, second spring block; 94, reset rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0031] Please refer to Figures 1 to 12 , the present invention provides a technical solution: a movable English teaching electronic display device, including a mobile vehicle body 1 and a screen placement table 2. The two sides of the top of the screen placement table 2 are movably arranged on the top of the mobile vehicle body 1 through telescopic rods 3. A driving component 4 is provided at the bottom of the mobile vehicle body 1. A protection device 6 is provided at the side end of the driving component 4. A linkage component 7 is provided on one side of the protection device 6. A stability component 8 is provided on the linkage component 7. A locking component 9 is provided on one side of the stability component 8 and is located on the mobile vehicle body 1. The protection device 6 includes a trigger component 61 and a switch component 63. The trigger component 61 is arranged at the side end of the driving component 4. The switch component 63 is arranged on one side of the trigger component 61 and is located at the side end of the screen placement table 2.

[0032] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, the driving component 4 includes a driving gear ring 41. The driving gear ring 41 is sleeved on a power rod 42 in the mobile vehicle body 1. A driving frame 43 is arranged inside the mobile vehicle body 1. The two sides of the driving frame 43 are fixedly connected to the inner wall of the mobile vehicle body 1. An L-shaped frame 44 is arranged on one side of the driving frame 43 close to the driving gear ring 41. A vertically arranged first bevel gear 45 is rotatably connected to the L-shaped frame 44. The side end of the first bevel gear 45 is meshed with the side end of the driving gear ring 41. The top of the first bevel gear 45 is meshed with the side end of a second bevel gear 46. The second bevel gear 46 is rotatably arranged at the side end of the L-shaped frame 44 through a rotating shaft 47. The second bevel gear 46 is horizontal. A transmission member 49 is rotatably connected to the center of the driving frame 43 through a rotating shaft 48. The transmission member 49 and the rotating shaft 47 are movably connected through a transmission belt 50. The top of the rotating shaft 48 is connected to the top inside the mobile vehicle body 1;

[0033] The trigger assembly 61 includes a slot 611, and there are two slots 611. The two slots 611 are symmetrically opened at the side ends of the rotating shaft 48 and are located above the transmission member 49. Each of the slots 611 is rotatably connected to an L-shaped connecting rod 612. The two L-shaped connecting rods 612 are arranged in opposite mirror images. The bottom of each L-shaped connecting rod 612 is connected to a gravity ball 613. The top of the rotating shaft 48 is slidable up and down with an articulated frame 614. Both ends of the articulated frame 614 are hinged with linkage rods 615. The bottoms of the two linkage rods 615 are respectively connected to an L-shaped linkage rod 613. The top of the connecting rod 612 is hinged. A matching ring 616 is provided on the top of the hinged frame 614. The matching ring 616 slides up and down with the rotating shaft 48. A driving rod 617 is provided on one side of the matching ring 616. The center of the driving rod 617 is rotatably connected to the reference frame 618 at the bottom of the mobile body 1. The end of the driving rod 617 close to the matching ring 616 rolls with the side end of the matching ring 616 through the two ends of the rectangular frame 619. The other end of the driving rod 617 is hinged to the side end of the wedge block 620. The wedge block 620 is slidably set on the sliding frame 621 on the inner wall of the mobile body 1.

[0034] The mobile body 1 is provided with a through slot 622, in which a resistance rod 623 is slidably provided, and a vertically arranged passive wedge block 624 is connected to the bottom of the resistance rod 623. The bottom of the passive wedge block 624 is located inside the mobile body 1 and above the wedge block 620. When the wedge block 620 moves upward, it can drive the passive wedge block 624 and the resistance rod 623 to slide in the through slot 622. The side end of the resistance rod 623 is movably connected to the inner wall of the through slot 622 by a telescopic spring 625. The top of the resistance rod 623 is provided with a vertically arranged clamping rod 626, and a horizontally arranged toggle rod 627 is provided on the side of the clamping rod 626 close to the screen placement table 2.

[0035] The switch assembly 63 includes a placement slot 631, which is opened on the top of the screen placement platform 2. Fixed plates 632 are symmetrically provided on both sides of the bottom of the screen placement platform 2. A reaction shaft 633 is rotatably connected between the two fixed plates 632. The end of the reaction shaft 633 close to the toggle rod 627 is connected to the center of the reaction disk 634. Two matching rods 635 are symmetrically provided on the side of the reaction disk 634 away from the screen placement platform 2. Two reaction rods 636 are symmetrically provided on the side of the reaction disk 634 close to the screen placement platform 2. Each reaction rod 636 is hinged to the telescopic end of a spring telescopic rod 637. The tail of the spring telescopic rod 637 is hinged to the side end of the fixed plate 632. The two spring telescopic rods 637 are arranged parallel to each other.

[0036] One end of the reaction shaft 633 away from the toggling lever 627 is connected to the center of the control disk 638. Auxiliary levers 639 are symmetrically arranged on both sides of the control disk 638. The end of the auxiliary lever 639 is hinged to the side end of the adjacent fixing plate 632. The top of the auxiliary lever 639 is hinged to the bottom of the cover plate 640. The sides of the two cover plates 640 away from each other are obliquely arranged. A clamping groove 641 matching the cover plate 640 is provided at the top of the placement groove 631. The combined size of the two fixing plates 632 matches the size of the placement groove 631. One side of the bottom of the cover plate 640 away from the auxiliary lever 639 is hinged to the end of the L-shaped support rod 642. The middle of the L-shaped support rod 642 is hinged to the side end of the fixing plate 632. A pull rod 643 is hinged to the bottom of the L-shaped support rod 642. The other end of the pull rod 643 is hinged to the side end of the control disk 638.

[0037] In this embodiment, as Figure 10 , Figure 11 and Figure 12 shown, the linkage assembly 7 includes a linkage frame 71. The linkage frame 71 is arranged on the driving frame 43 and the side end of the linkage frame 71 is connected to the inner wall of the moving vehicle body 1. A linkage sleeve 72 is rotatably connected inside the linkage frame 71 and is located outside the two gravity balls 613. Convex portions 73 are symmetrically arranged inside the linkage sleeve 72. A plurality of toggling blocks 74 are evenly distributed on the top of the linkage sleeve 72. A sleeve rod 75 is provided at the side end of the linkage sleeve 72 and is rotatably arranged on the linkage frame 71. A plurality of connecting blocks 76 matching the toggling blocks 74 are evenly distributed on the side end of the bottom of the sleeve rod 75. The top of the sleeve rod 75 is open. A plurality of first spring blocks 77 are evenly distributed inside the top of the sleeve rod 75;

[0038] The stabilizing assembly 8 includes a support rod 81. The support rod 81 is vertically arranged at the center of the bottom of the screen placement table 2. The bottom of the support rod 81 is slidably arranged in the through hole 83 of the moving vehicle body 1 through a horizontally arranged fixing rod 82. The support rod 81 is rotationally matched with the reaction shaft 633. A rotating sleeve 84 is rotatably connected in the through hole 83. The rotating sleeve 84 is rotatably arranged outside the support rod 81. The side end of the rotating sleeve 84 is movably connected to the inner wall of the through hole 83 through a coil spring 85. An arc-shaped groove 86 is opened at the side end of the rotating sleeve 84. The fixing rod 82 is slidably arranged in the arc-shaped groove 86. The bottom of the rotating sleeve 84 is connected to a matching sleeve 87 and is located inside the sleeve rod 75. A plurality of arc-shaped openings 88 are evenly opened around the matching sleeve 87. The movable end of each first spring block 77 is respectively clamped in an arc-shaped opening 88;

[0039] The locking assembly 9 includes a ratchet 91, which is arranged on the top of the mobile body 1 and is sleeved on the outside of the top of the rotating sleeve 84. A locking rod 92 is provided at the side end of the latch rod 626. The end of the locking rod 92 away from the latch rod 626 is clamped in the tooth groove end of the ratchet 91 through a second spring block 93. A reset rod 94 is provided below the toggle rod 627, and the side end of the reset rod 94 is connected to the side end of the latch rod 626.

[0040] The use method and advantages of the present invention: The working process of the portable electronic display device for English teaching is as follows:

[0041] like Figures 1 to 12 As shown, when moving a short distance, the movement of the mobile body 1 drives the power rod 42 and the driving gear ring 41 to rotate synchronously, so that the first bevel gear 45 meshing therewith drives the second bevel gear 46 to rotate synchronously, and under the action of the transmission belt 50, drives the transmission member 49 and the rotating shaft 48 to rotate synchronously counterclockwise. When the speed of the rotating shaft 48 is not fast enough and the duration is not long enough, the two gravity balls 613 move away from each other under the action of centrifugal force, and the two L-shaped connecting rods 612 are deflected in opposite directions, thereby driving the articulated frame 614 and the matching ring 616 to move up and down on the rotating shaft 48 through the linkage rod 615, thereby driving the driving rod 617 to deflect on the side end of the reference frame 618 through the rectangular frame 619, so that the wedge block 620 moves up in the direction of the sliding frame 621, thereby Under the action of the block 624, the interference rod 623 moves along the through slot 622, thereby contracting the telescopic spring 625. Under the cooperation of the locking rod 626 and the toggle rod 627, the interference rod 635 located above the reaction disk 634 is contacted, thereby causing the reaction disk 634 to rotate clockwise. Under the action of the reaction rod 636 and the spring telescopic rod 637, the reaction deflection is locked quickly, thereby driving the control disk 638 to rotate synchronously. Then, under the action of the pull rod 643 and the L-shaped support rod 642, the two cover plates 640 are driven by the auxiliary rod 639 to move toward the placement slot 631 and fit together, so that the side end inclined surfaces of the cover surface are locked in the corresponding position of the locking slot 641, thereby shielding and protecting the screen surface in the placement slot 631, thereby preventing damage to the screen during movement, and improving the safety of the device.

[0042] When the cam 72 is in the closed position, the locking lever 72 is in the closed position, and the locking lever 72 is in the closed position, so that the cam 72 is in the closed position, and the locking lever 72 is in the closed position, so that the cam 72 is in the closed position, and the locking lever 72 is in the closed position, so that the cam 72 is in the closed position, and the locking lever 72 is in the closed position, so that the cam 72 is in the closed position, and the cam 72 is in the closed position, so that the cam 72 is in the closed position, and the cam 72 is in the closed position, so that the cam 72 is in the closed position, so that the cam 72 is in the closed position, The locking of the support rod 81 position lowers the center of gravity of the device, making it easier to move the device quickly, thereby avoiding the possibility of the device tipping over when moving too fast, and avoiding the problem of the device being bumped and difficult to move due to the high height, thereby improving the stability during movement. At the same time, after the mobile body 1 moves to the designated position and stops, after losing kinetic energy, the two L-shaped connecting rods 612 are reset under the gravity of the gravity ball 613 itself, so that the passive wedge block 624 loses its resistance force, and the clamping rod 626 is reset under the action of the telescopic spring 625. In the process of resetting, the reaction disk 634 and the control disk 638 are reset through the reset rod 94, so that the placement slot 631 is opened, and the second spring clamping block 93 is synchronously disengaged from the ratchet 91, so that under the action of the coil spring 85, the rotating sleeve 84 is reset, thereby driving the screen placement platform 2 to reset, thereby improving the practicality of the device.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A movable electronic display device for English teaching, comprising a moving vehicle body (1) and a screen placement table (2), and both sides of the top of the screen placement table (2) are movably arranged on the top of the moving vehicle body (1) through telescopic rods (3); It is characterized in that: A driving assembly (4) is arranged at the bottom of the moving vehicle body (1), a protection device (6) is arranged at the side end of the driving assembly (4), a linkage assembly (7) is arranged on one side of the protection device (6), a stabilizing assembly (8) is arranged on the linkage assembly (7), a locking assembly (9) is arranged on one side of the stabilizing assembly (8) and is located on the moving vehicle body (1). The protection device (6) includes a triggering assembly (61) and a switch assembly (63). The triggering assembly (61) is arranged at the side end of the driving assembly (4), and the switch assembly (63) is arranged on one side of the triggering assembly (61) and is located at the side end of the screen placement table (2).

2. The mobile English teaching electronic display device according to claim 1, characterized in that: The driving assembly (4) includes a driving gear ring (41) sleeved on a power rod (42); a driving frame (43) fixed to the inner wall of the vehicle body. A side of the driving frame (43) is provided with an L-shaped frame (44). A vertically arranged first bevel gear (45) is rotatably connected to the L-shaped frame (44). A side end of the first bevel gear (45) is meshed with a side end of the driving gear ring (41). A top of the first bevel gear (45) is meshed with a side end of a second bevel gear (46). The second bevel gear (46) is rotatably arranged at the side end of the L-shaped frame (44) through a rotating shaft (47). A center of the driving frame (43) is rotatably connected to a transmission member (49) through a rotating shaft (48). The transmission member (49) and the rotating shaft (47) are movably connected through a transmission belt (50).

3. The mobile English teaching electronic display device according to claim 2, wherein: The triggering assembly (61) includes slots (611) symmetrically opened at the side end of the rotating shaft (48). An L-shaped connecting rod (612) is rotatably connected to each of the slots (611). A bottom of each L-shaped connecting rod (612) is connected to a gravity ball (613). An articulated frame (614) is slidably arranged up and down at the top of the rotating shaft (48). Both ends of the articulated frame (614) are articulated with a linkage rod (615). Bottoms of the two linkage rods (615) are respectively articulated with a top of an L-shaped connecting rod (612). A matching ring (616) is arranged at the top of the articulated frame (614). A driving rod (617) is arranged on one side of the matching ring (616). A center of the driving rod (617) is rotatably connected to a reference frame (618) at the bottom of the moving vehicle body (1). An end of the driving rod (617) close to the matching ring (616) is in rolling cooperation with side ends of the matching ring (616) through both ends of a rectangular frame (619). The other end of the driving rod (617) is articulated with a side end of a wedge block (620). The wedge block (620) is slidably arranged on a sliding frame (621) on the inner wall of the moving vehicle body (1).

4. The mobile English teaching electronic display device according to claim 3, wherein: The mobile vehicle body (1) is provided with a through slot (622), and a resistance rod (623) is slidably provided in the through slot (622). The bottom of the resistance rod (623) is connected to a vertically arranged passive wedge block (624) and is located above the wedge block (620). The side end of the resistance rod (623) is movably connected to the inner wall of the through slot (622) through a telescopic spring (625). The top of the resistance rod (623) is provided with a vertically arranged clamping rod (626), and the side of the clamping rod (626) close to the screen placement table (2) is provided with a horizontally arranged toggle rod (627).

5. The movable English teaching electronic display device according to claim 4, wherein: The switch assembly (63) includes a placement slot (631) provided on the top of the screen placement platform (2); a fixed plate (632) symmetrically provided at the bottom of the screen placement platform (2); and a reaction shaft (633) rotatably connected between the fixed plates (632). The reaction shaft (633) is connected to the center of a reaction disk (634) at one end close to the toggle rod (627). Two matching rods (635) are symmetrically provided on the side of the reaction disk (634) away from the screen placement platform (2). Two reaction rods (636) are symmetrically provided on the side of the reaction disk (634) close to the screen placement platform (2). Each reaction rod (636) is hinged to the telescopic end of a spring telescopic rod (637). The tail of the spring telescopic rod (637) is hinged to the side end of the fixed plate (632). The two spring telescopic rods (637) are arranged parallel to each other.

6. The movable English teaching electronic display device according to claim 5, characterized in that: The end of the reaction shaft (633) away from the toggle rod (627) is connected to the center of the control disk (638). Auxiliary rods (639) are symmetrically provided on both sides of the control disk (638). The ends of the auxiliary rods (639) are hinged to the side ends of the adjacent fixing plates (632). The top of the auxiliary rods (639) is hinged to the bottom of the cover plate (640). The two sides of the cover plates (640) away from each other are arranged obliquely. The placement slot ( 631) is provided with a slot (641) that matches the cover plate (640), and the bottom of the cover plate (640) is hinged to the end of the L-shaped support rod (642) on the side away from the auxiliary rod (639), and the middle part of the L-shaped support rod (642) is hinged to the side end of the fixed plate (632), and the bottom of the L-shaped support rod (642) is hinged with a pull rod (643), and the other end of the pull rod (643) is hinged to the side end of the control panel (638).

7. The movable English teaching electronic display device according to claim 6, wherein: The linkage assembly (7) comprises a linkage frame (71) fixed between a driving frame (43) and a mobile vehicle body (1) and located below a control panel (638), a linkage sleeve (72) rotatably connected to the linkage frame (71), a symmetrical protrusion (73) provided inside the linkage sleeve (72), a plurality of toggle blocks (74) evenly distributed on the top of the linkage sleeve (72), a sleeve rod (75) provided at the side end of the linkage sleeve (72) and rotatably arranged on the linkage frame (71), a plurality of connecting blocks (76) matched with the toggle blocks (74) evenly distributed on the side end of the bottom of the sleeve rod (75), and a plurality of first spring clamping blocks (77) evenly distributed inside the top of the sleeve rod (75).

8. The movable English teaching electronic display device according to claim 7, characterized in that: The stabilizing assembly (8) includes a support rod (81) vertically arranged at the bottom of the screen placement platform (2); the bottom of the support rod (81) is slidably arranged in a through hole (83) of the mobile body (1) via a horizontally arranged fixing rod (82); the support rod (81) is rotatably matched with the reaction shaft (633); a rotating sleeve (84) is rotatably connected in the through hole (83); the rotating sleeve (84) is rotatably arranged on the outside of the support rod (81); and the side end of the rotating sleeve (84) is rotated by The coil spring (85) is movably connected to the inner wall of the through hole (83); an arcuate groove (86) is provided at the side end of the rotating sleeve (84); the fixed rod (82) is slidably arranged in the arcuate groove (86); the bottom of the rotating sleeve (84) is connected to the matching sleeve (87) and is located inside the sleeve rod (75); a plurality of arcuate openings (88) are evenly provided around the matching sleeve (87); and the movable end of each of the first spring blocks (77) is respectively clamped in an arcuate opening (88).

9. A movable English teaching electronic display device according to claim 8, characterized in that: The locking assembly (9) includes a ratchet (91), which is arranged on the top of the mobile body (1) and sleeved on the outside of the top of the rotating sleeve (84). A locking rod (92) is provided at the side end of the clamping rod (626). The end of the locking rod (92) away from the clamping rod (626) is clamped in the tooth groove end of the ratchet (91) through a second spring clamping block (93). A reset rod (94) is provided below the toggle rod (627), and the side end of the reset rod (94) is connected to the side end of the clamping rod (626).

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