Multi-screen demonstration interaction device and system

Abstract

The application is suitable for the technical field of multi-screen demonstration technology, and provides a multi-screen demonstration interactive device and system.The multi-screen demonstration interactive device comprises a mounting frame, two demonstration boards arranged side by side on the mounting frame, the bottom ends of the two demonstration boards being rotationally connected, a connecting groove being formed on the demonstration board along a diagonal line, the connecting grooves on the two demonstration boards intersecting, two connecting columns being symmetrically arranged on the mounting frame, the two connecting columns being slidingly connected with the connecting grooves on the two demonstration boards, and a power mechanism for driving the bottom ends of the two demonstration boards to move in the vertical direction, the power mechanism being drivingly connected with the rotationally connected portions of the bottom ends of the two demonstration boards, and the power mechanism comprising a threaded rod, a first motor and a first internally-threaded sleeve.The application can change the positions of the two demonstration boards and the angle between the two demonstration boards by arranging the mounting frame, the demonstration boards, the connecting columns and the power mechanism, the two demonstration boards can present different display forms, the display is varied, the popularization effect is good, and more use requirements can be met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of multi-screen demonstration technology, and particularly relates to a multi-screen demonstration interactive device and system. BACKGROUND

[0002] Digital exhibition hall production, multi-screen linkage system has been successfully applied to: science and technology museum, planning museum, exhibition hall, exhibition, museum, etc. Through the modern digital exhibition hall display system to replace the original complex, rigid mode, now multi-screen linkage technology display effect is more cool, more attractive to visitors eye;

[0003] In the prior art, the multi-screen demonstration is generally performed by using multiple display devices arranged side by side, or by installing multiple display screens on a wall. In these ways, the display devices or display screens can only work in one way or mode, and the demonstration way or mode is single, which cannot meet the increasing interactive demonstration requirements. SUMMARY

[0004] The present application provides a multi-screen demonstration interactive device and system, which aims to solve the problem of single demonstration way or mode of the existing promotion board.

[0005] The present application is implemented as follows: a multi-screen demonstration interactive device comprises:

[0006] a mounting frame;

[0007] two demonstration boards arranged side by side on the mounting frame, wherein a main touch display screen is installed on each of the demonstration boards, and the bottom ends of the two demonstration boards are rotationally connected, a connecting groove is formed on each of the demonstration boards along a diagonal line, and the connecting grooves on the two demonstration boards intersect with each other;

[0008] two connecting columns symmetrically arranged on the mounting frame, wherein each of the connecting columns is slidably connected with the connecting groove on each of the demonstration boards;

[0009] a power mechanism for driving the bottom ends of the two demonstration boards to move in a vertical direction, and the power mechanism is drivingly connected to the rotationally connected portion of the bottom ends of the two demonstration boards.

[0010] Preferably, the bottom ends of the two demonstration boards are connected by a hinge, and the two link plates of the hinge are fixed to the bottom ends of the two demonstration boards, and the power mechanism is drivingly connected to the pin shaft of the hinge.

[0011] Preferably, the power mechanism comprises:

[0012] a threaded rod vertically rotationally installed on the mounting frame;

[0013] a first motor fixed to the mounting frame for driving the threaded rod to rotate;

[0014] A first internally threaded sleeve threadedly connected to the threaded rod, the first internally threaded sleeve being fixedly connected to the pin shaft of the hinge.

[0015] Preferably, the demonstration board is provided with a mounting groove, and a secondary touch display screen is mounted in the mounting groove.

[0016] Preferably, the driving mechanism comprises:

[0017] A bidirectional screw rod rotatably mounted in the demonstration board, one end of the bidirectional screw rod being connected to a second motor configured to drive the bidirectional screw rod to rotate, the second motor being fixed to the demonstration board.

[0018] A second internally threaded sleeve threadedly connected to a threaded segment of the bidirectional screw rod.

[0019] A first connecting rod connected between the second internally threaded sleeve and the secondary touch display screen, one end of the first connecting rod being hingedly connected to the second internally threaded sleeve, and the other end of the first connecting rod being hingedly connected to the secondary touch display screen.

[0020] Preferably, the multi-screen demonstration and interaction device further comprises a stabilizing assembly, the stabilizing assembly comprising:

[0021] A mounting plate configured to fixedly mount the mounting rack.

[0022] A bottom plate disposed below the mounting plate, a plurality of telescopic rods being circumferentially and spacedly disposed between the mounting plate and the bottom plate, both ends of each telescopic rod being rotatably connected to the mounting plate and the bottom plate, respectively, a compression spring being sleeved on each telescopic rod, the compression spring having an upward force acting on the mounting plate.

[0023] An outer spiral rod being fixedly disposed at the center of the plurality of circumferentially and spacedly disposed telescopic rods on the mounting plate, and an inner spiral sleeve being rotatably mounted on the bottom plate and configured to be inserted into and spirally fitted with the outer spiral rod.

[0024] A first gear being fixed to the inner spiral sleeve, a second gear being fixed to a rod segment of each telescopic rod and being rotatably connected to the bottom plate, the second gear being rotatably mounted on the mounting plate and being rotatably connected to the first gear.

[0025] A plurality of fixed drill rods being circumferentially and spacedly disposed outside the second gears, the fixed drill rods being threadedly connected to the bottom plate and being drilled into the ground, a transmission sleeve being sleeved on the outer surface of each fixed drill rod, the transmission sleeve being rotatably mounted on the upper surface of the bottom plate, a long protruding segment being fixed to the top end of each fixed drill rod, a long sliding groove being formed in the inner wall of the transmission sleeve and being slidably fitted with the long protruding segment, and a third gear being fixed to the transmission sleeve and being rotatably connected to the second gear.

[0026] Preferably, the stabilizing assembly further comprises:

[0027] A support plate is provided with an opening groove for mounting the support plate, and the support plate is in sliding connection with the bottom plate.

[0028] A second connecting rod is eccentrically connected at one end to the end surface of the second gear and at the other end to the support plate.

[0029] Preferably, sliding blocks are fixed at both ends of the support plate, and the bottom plate is provided with a sliding groove in sliding connection with the sliding blocks.

[0030] A multi-screen demonstration interactive system comprises the multi-screen demonstration interactive device and the following components:

[0031] A controller is mounted on the mounting rack and is in electrical connection with the main touch display screen and the auxiliary touch display screen.

[0032] A power supply module is mounted on the mounting rack and is used for supplying power to the controller, the first motor, the second motor, the main touch display screen and the auxiliary touch display screen.

[0033] Preferably, the multi-screen demonstration interactive system further comprises:

[0034] A communication module is mounted on the mounting rack and is in electrical connection with the controller and the power supply module.

[0035] A cloud platform is in communication connection with the communication module.

[0036] A mobile terminal is in communication connection with the cloud platform.

[0037] Compared with the prior art, the embodiments of the application have the following beneficial effects:

[0038] The multi-screen demonstration interactive device provided by the application comprises a mounting rack, demonstration boards, a connecting column and a power mechanism, the bottom ends of the two demonstration boards are moved in the vertical direction by the power mechanism, the demonstration boards slide and rotate relative to the connecting column, the positions of the two demonstration boards and the angle between the two demonstration boards change, the two demonstration boards present different display forms, the display is varied, the demonstration and interaction are good, and more use requirements are met.

[0039] The multi-screen demonstration interactive device provided by the application comprises a mounting rack, demonstration boards, a connecting column and a power mechanism, the bottom ends of the two demonstration boards are moved in the vertical direction by the power mechanism, the demonstration boards slide and rotate relative to the connecting column, the positions of the two demonstration boards and the angle between the two demonstration boards change, the two demonstration boards present different display forms, the display is varied, the demonstration and interaction are good, and more use requirements are met. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1It is a structural schematic view of a multi-screen demonstration interactive device provided by the application;

[0041] Figure 2 It is Figure 1 An enlarged view of A in the figure;

[0042] Figure 3 It is a side view of another form of a multi-screen demonstration interactive device provided by the application;

[0043] Figure 4 It is a structural schematic view of a mounting rack and a power mechanism in a multi-screen demonstration interactive device provided by the application;

[0044] Figure 5 It is a structural schematic view of a mounting rack and a demonstration board in a multi-screen demonstration interactive device provided by the application;

[0045] Figure 6 It is a schematic view of different display forms of a demonstration board in a multi-screen demonstration interactive device provided by the application;

[0046] Figure 7 It is a structural schematic view of another embodiment of a multi-screen demonstration interactive device provided by the application;

[0047] Figure 8 It is Figure 7 An enlarged view of B in the figure;

[0048] Figure 9 It is a top view of a stabilizing assembly in another embodiment of a multi-screen demonstration interactive device provided by the application;

[0049] Figure 10 It is a structural schematic view of still another embodiment of a multi-screen demonstration interactive device provided by the application

[0050] Figure 11 It is a module connection diagram in still another embodiment of a multi-screen demonstration interactive device provided by the application.

[0051] Reference signs annotation: 1, demonstration board; 2, main touch display screen; 3, mounting rack; 4, threaded rod; 5, first motor; 6, second motor; 7, second internal threaded sleeve; 8, first connecting rod; 9, bidirectional screw rod; 10, auxiliary touch display screen; 11, hinge; 12, first internal threaded sleeve; 13, connecting column; 14, connecting groove; 15, long protruding section; 16, third gear; 17, bottom plate; 18, fixed drill rod; 19, second gear; 20, telescopic rod; 21, second connecting rod; 22, first gear; 23, internal spiral sleeve; 24, external spiral rod; 25, compression spring; 26, mounting plate; 27, transmission sleeve; 28, support plate; 29, sliding block; 30, communication module; 31, power supply module; 32, controller; 33, cloud platform; 34, mobile terminal. DETAILED DESCRIPTION

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The articles 'a', 'an', and 'the' are used herein to refer to one or to more than one (i.e. to at least one) of the grammatical object of the article. By the use of the term 'or' we include "and / or" unless otherwise indicated. In addition, use of the 'or' term within the lists of optional features means individual items can be selected from the list. Unless otherwise indicated, the terms "including", "includes", "having", "has", "containing", "contains", "characterized by" and the like are used broadly and encompass the terms "consisting of", "consisting essentially of", "comprising", "including" and "containing" and their analogs.

[0053] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment even though it is not mentioned expressly.

[0054] Embodiment 1

[0055] The embodiment of the application provides a multi-screen demonstration interaction device, as shown in the drawings, comprising: Figures 1-6 A mounting frame 3;

[0056] Two demonstration boards 1 arranged side by side on the mounting frame 3, wherein the demonstration boards 1 are provided with main touch display screens 2 and can be used for demonstration interaction, the bottom ends of the two demonstration boards 1 are rotationally connected, a connecting groove 14 is formed on the demonstration board 1 along a diagonal line, and the connecting grooves 14 on the two demonstration boards 1 intersect.

[0057] Two connecting columns 13 symmetrically arranged on the mounting frame 3, wherein the connecting columns 13 are welded and fixed with the mounting frame 3, and the connecting columns 13 are slidingly connected with the connecting grooves 14 on the two demonstration boards 1 respectively.

[0058] A power mechanism for driving the bottom ends of the two demonstration boards 1 to move in the vertical direction, wherein the power mechanism is drivingly connected with the rotationally connected positions of the bottom ends of the two demonstration boards 1, in the embodiment, the bottom ends of the two demonstration boards 1 are connected through a hinge 11, two hinge plates of the hinge 11 are fixed with the bottom ends of the two demonstration boards 1 respectively, the power mechanism is drivingly connected with a pin shaft of the hinge 11, and the rotation of the two demonstration boards 1 is not limited.

[0059]

[0060] ​In use, the two demonstration boards 1 are moved in the vertical direction by the power mechanism, the demonstration boards 1 slide relative to the connecting column 13 and rotate, the positions of the two demonstration boards 1 and the angle between the two demonstration boards 1 change, the two demonstration boards 1 present different display forms, the display is varied, the demonstration interaction is good, and more use requirements are met.

[0061] The power mechanism comprises:

[0062] The threaded rod 4 is vertically rotatably installed on the mounting frame 3 and is rotatably connected to the mounting frame 3 through a bearing;

[0063] The first motor 5 is fixed to the top of the mounting frame 3 and is used to drive the threaded rod 4 to rotate, and the first motor 5 can be fixed to the top of the mounting frame 3 through bolts;

[0064] The first internal threaded sleeve 12 is threadedly connected to the threaded rod 4 and is fixedly connected to the pin shaft of the hinge 11, for example, the first internal threaded sleeve 12 can be welded to the pin shaft of the hinge 11;

[0065] In use, the first motor 5 is started, the first motor 5 drives the threaded rod 4 to rotate, the threaded rod 4 drives the first internal threaded sleeve 12 to move, and the first internal threaded sleeve 12 drives the bottom ends of the two demonstration boards 1 to move up and down and rotate under the support and cooperation of the connecting column 13.

[0066] In specific implementation, the demonstration board 1 is provided with a mounting groove, the auxiliary touch display screen 10 is installed in the mounting groove, and a driving mechanism is installed in the demonstration board 1 and used to push the auxiliary touch display screen 10 out of the mounting groove or drive the auxiliary touch display screen 10 to return to the mounting groove, so that the auxiliary touch display screen 10 can be pushed out when auxiliary demonstration interaction is needed.

[0067] The driving mechanism comprises:

[0068] The bidirectional screw rod 9 is rotatably installed in the demonstration board 1, one end of the bidirectional screw rod 9 is connected to the second motor 6 that drives the bidirectional screw rod 9 to rotate, the second motor 6 is fixed to the demonstration board 1 through bolts, and the output shaft of the second motor 6 is fixed to the bidirectional screw rod 9 through a shaft coupling;

[0069] The second internal threaded sleeve 7 is threadedly connected to the threaded section of the bidirectional screw rod 9;

[0070] The first connecting rod 8 is connected between the second internal threaded sleeve 7 and the auxiliary touch display screen 10, one end of the first connecting rod 8 is hingedly connected to the second internal threaded sleeve 7, and the other end of the first connecting rod 8 is hingedly connected to the auxiliary touch display screen 10;

[0071] The second motor 6 drives the bidirectional lead screw 9 to rotate, the bidirectional lead screw 9 drives the second internal threaded sleeve 7 to move, and the second internal threaded sleeve 7 drives the secondary touch screen 10 to move through the first connecting rod 8.

[0072] Example 2

[0073] This embodiment is based on embodiment 1, such as... Figures 7-9 As shown, the multi-screen presentation and interaction device also includes a stabilization component to improve stability. The stabilization component includes:

[0074] The mounting plate 26 used to fix the mounting bracket 3 can be fixed by welding;

[0075] A base plate 17 is located below the mounting plate 26. Multiple telescopic rods 20 are circumferentially spaced between the mounting plate 26 and the base plate 17. The two ends of the telescopic rods 20 are rotatably connected to the mounting plate 26 and the base plate 17, respectively. A compression spring 25 is sleeved on the telescopic rod 20. The compression spring 25 exerts an upward force on the mounting plate 26. Specifically, the telescopic rod 20 can be a rod that can be movably inserted into a sleeve to serve as a connection and guide.

[0076] An outer spiral rod 24 is fixed at the center of multiple telescopic rods 20 arranged circumferentially on the mounting plate 26. It can be fixed by welding. An inner spiral sleeve 23 is rotatably installed on the base plate 17 for the outer spiral rod 24 to be inserted and spirally engaged. It can be installed by bearing rotation. The spiral engagement is similar to the mop handle of an automatic water-spinning mop, which converts relative linear motion into relative rotation.

[0077] A first gear 22 is fixed on the inner spiral sleeve 23. A second gear 19 is provided on both sides of the first gear 22 to mesh with it. The second gear 19 is fixed on the rod segment connecting the telescopic rod 20 and the base plate 17.

[0078] Multiple fixed drill rods 18 are circumferentially spaced outside the second gear 19. The fixed drill rods 18 are threadedly connected to the base plate 17 and drill into the ground. A transmission sleeve 27 is sleeved on the outside of the fixed drill rods 18. The transmission sleeve 27 is rotatably mounted on the upper surface of the base plate 17. A long protruding section 15 is fixed at the top of the fixed drill rods 18. A long sliding groove is opened on the inner side wall of the transmission sleeve 27 to slide with the long protruding section 15. A third gear 16 that meshes with the second gear 19 is fixed on the transmission sleeve 27.

[0079] In use of the multi-screen demonstration interactive device, when a downward external force or vibration is applied, the mounting plate 26 moves downward, the outer screw rod 24 moves downward driven by the mounting plate 26, the inner screw sleeve 23 rotates driven by the outer screw rod 24, the first gear 22 rotates driven by the inner screw sleeve 23, the second gear 19 rotates driven by the first gear 22, the third gear 16 rotates driven by the second gear 19, the driving sleeve rotates driven by the third gear 16, the fixed drill rod 18 rotates driven by the driving sleeve through the long protruding section 15, the fixed drill rod 18 moves downward when rotating due to the threaded connection with the bottom plate 17, and the fixed drill rod 18 is further inserted into the ground to a deeper position. The greater the external force or vibration is, the deeper the fixed drill rod 18 is inserted, and the stability is improved.

[0080] Further, the stabilizing assembly further comprises:

[0081] The support plate 28 is provided with an opening groove for mounting the support plate 28 on the bottom plate 17, and the support plate 28 is slidingly connected with the bottom plate 17. Preferably, sliding blocks 29 are fixed at both ends of the support plate 28, and the bottom plate 17 is provided with sliding grooves slidingly connected with the sliding blocks 29.

[0082] The second connecting rod 21 is eccentrically hinged at one end to the end face of the second gear 19 and hinged at the other end to the support plate 28. Specifically, preferably, two second connecting rods 21 are connected at intervals on each support plate 28, and the two second connecting rods 21 are hinged to two second gears 19 respectively.

[0083] When the second gear 19 rotates, the second gear 19 drives the support plate 28 to slide outwardly of the bottom plate 17 through the second connecting rod 21, expands the contact area with the ground, and further improves the stability.

[0084] Embodiment 3

[0085] A multi-screen demonstration interactive system, as shown in Figures 9-11 The multi-screen demonstration interactive device described in Embodiment 2 further comprises:

[0086] The controller 32 mounted on the mounting bracket 3 can be a single-chip microcomputer, and the controller 32 is electrically connected with the main touch display screen 2 and the auxiliary touch display screen 10 respectively.

[0087] The power supply module 31 mounted on the mounting bracket 3 is used for supplying power to the controller 32, the first motor 5, the second motor 6, the main touch display screen 2 and the auxiliary touch display screen 10.

[0088] Preferably, the multi-screen demonstration interactive system further comprises:

[0089] The communication module 30 mounted on the mounting bracket 3 is electrically connected with the controller 32 and the power supply module 31, and the communication module 30 can be a wireless communication device, which is prior art and will not be described herein.

[0090] A cloud platform 33 in communication connection with the communication module 30;

[0091] A mobile terminal 34 in communication connection with the cloud platform 33, which can be a mobile phone, a tablet computer, etc.

[0092] In operation, the cloud platform 33 integrates demonstration interactive data, which is transmitted to the controller 32 through the communication module 30, and then displayed through the main touch display screen 2 and the auxiliary touch display screen 10, and can be operated through the mobile terminal 34.

[0093] In summary, the present application provides a multi-screen demonstration interactive device, which works as follows: in use, the first motor 5 is started, the first motor 5 drives the threaded rod 4 to rotate, the threaded rod 4 drives the first internal threaded sleeve 12 to move, the first internal threaded sleeve 12 drives the two demonstration boards 1 at the bottom to move in the vertical direction, the demonstration boards 1 slide and rotate relative to the connecting column 13, the positions of the two demonstration boards 1 and the angle between them change, the two demonstration boards 1 present different display forms, the display is varied and the promotion effect is good, which meets more use requirements; when the multi-screen demonstration interactive device is used, such as under the downward external force or vibration, the mounting plate 26 moves downward, the mounting plate 26 drives the outer screw rod 24 to move downward, the outer screw rod 24 cooperates with the inner screw sleeve 23 to make the inner screw sleeve 23 rotate, the inner screw sleeve 23 drives the first gear 22 to rotate, the first gear 22 drives the second gear 19 to rotate, the second gear 19 drives the third gear 16 to rotate, the third gear 16 drives the driving sleeve to rotate, the driving sleeve drives the fixed drill rod 18 to rotate through the long protruding section 15, the fixed drill rod 18 is threadedly connected with the bottom plate 17, so that the fixed drill rod 18 moves downward when rotating, and is further inserted into a deeper position of the ground, the greater the external force or amplitude, the deeper the fixed drill rod 18 is inserted, and the stability is improved; when the second gear 19 rotates, the second gear 19 drives the support plate 28 to slide outwardly relative to the bottom plate 17 through the second connecting rod 21, so as to expand the contact area with the ground, and further improve the stability.

[0094] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the action sequence described, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0095] In several embodiments provided by the present application, it should be understood that the disclosed apparatus can be implemented in other manners. For example, the division of the apparatus embodiments described above is merely illustrative, and the division of the units can be changed according to actual needs. For example, two or more units can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0096] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0097] The above embodiments are merely used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Obviously, the described embodiments are only some, but not all of the embodiments of the present application. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still make modifications to the technical features of the embodiments without departing from the concept of the present application, and the modifications shall also fall within the protection scope of the present application.

Claims

1. A multi-screen presentation interactive device, comprising: The utility model relates to a kind of demonstration board, which comprises: mounting frame; Two demonstration boards are arranged side by side on the mounting frame, and a main touch display screen is installed on the demonstration boards. The bottom ends of the two demonstration boards are rotatably connected. Connection slots are formed on the demonstration boards along a diagonal line. The connection slots on the two demonstration boards intersect. Two connecting columns are symmetrically arranged on the mounting frame. The connecting columns are fixedly connected to the mounting frame. The connecting columns are slidably connected to the connection slots on the two demonstration boards. A power mechanism is used to drive the bottom ends of the two demonstration boards to move in the vertical direction. The power mechanism is connected to the rotating connection between the bottom ends of the two demonstration boards. The power mechanism comprises: a threaded rod rotatably mounted on the mounting frame; a first motor fixedly connected to the mounting frame, used to drive the threaded rod to rotate; a first internal threaded sleeve threadedly connected to the threaded rod, fixedly connected to the pin of the hinge; the bottom ends of the two demonstration boards are connected by a hinge. The two hinge plates of the hinge are fixedly connected to the bottom ends of the two demonstration boards. The pin of the hinge is connected to the power mechanism. slots are formed in the demonstration boards. A secondary touch display screen is installed in the slots. A driving mechanism is installed in the demonstration boards, used to push the secondary touch display screen out of the slots or drive the secondary touch display screen back into the slots. The driving mechanism comprises: a bidirectional screw rod rotatably mounted in the demonstration board. One end of the bidirectional screw rod is connected to a second motor used to drive the bidirectional screw rod to rotate. The second motor is fixedly connected to the demonstration board. a second internal threaded sleeve threadedly connected to the threaded segment of the bidirectional screw rod. a first connecting rod connected between the second internal threaded sleeve and the secondary touch display screen. One end of the first connecting rod is hingedly connected to the second internal threaded sleeve. The other end of the first connecting rod is hingedly connected to the secondary touch display screen. start the first motor. The first motor drives the threaded rod to rotate. The threaded rod drives the first internal threaded sleeve to move. The first internal threaded sleeve drives the bottom ends of the two demonstration boards to move in the vertical direction. The demonstration boards slide and rotate relative to the connecting columns. The positions of the two demonstration boards and the angle between them change.

2. The multi-screen presentation interaction apparatus of claim 1, wherein, The utility model also comprises a stabilizing assembly, which comprises: a mounting plate used to fixedly connect the mounting frame; a bottom plate arranged below the mounting plate. A plurality of telescopic rods are circumferentially and spacedly arranged between the mounting plate and the bottom plate. The two ends of each telescopic rod are rotatably connected to the mounting plate and the bottom plate. A compression spring is sleeved on each telescopic rod. The compression spring exerts an upward force on the mounting plate. an external screw rod fixedly arranged at the center of each telescopic rod on the mounting plate. An internal screw sleeve is rotatably mounted on the bottom plate. The external screw rod is inserted into and screw-connected to the internal screw sleeve. a first gear fixedly connected to the internal screw sleeve. Second gears are arranged on both sides of the first gear. The second gears are fixedly connected to the rod segments of the telescopic rods and the bottom plate. a plurality of fixed drill rods circumferentially and spacedly arranged outside the second gears. The fixed drill rods are threadedly connected to the bottom plate and drilled into the ground. A transmission sleeve is sleeved on the outside of each fixed drill rod. The transmission sleeve is rotatably mounted on the upper surface of the bottom plate. A long protruding segment is fixedly arranged at the top end of each fixed drill rod. A long sliding groove is formed in the inner wall of the transmission sleeve. The long protruding segment slidably fits into the long sliding groove. A third gear is fixedly arranged on the transmission sleeve and engaged with the second gears.

3. The multi-screen presentation interaction apparatus of claim 2, wherein, The stabilizing assembly further comprises: A support plate is slidably connected with the bottom plate, and an opening groove for mounting the support plate is formed in the bottom plate; A second connecting rod is eccentrically hinged to one end of the second gear end face and hinged to the support plate at the other end.

4. The multi-screen presentation interaction apparatus of claim 3, wherein, Sliding blocks are fixed to both ends of the support plate, and a sliding groove slidably connected with the sliding blocks is formed in the bottom plate.

5. A multi-screen presentation interactive system, characterized by, The multi-screen demonstration interaction device comprises the multi-screen demonstration interaction device according to any one of claims 1-4, and further comprises: A controller mounted on the mounting frame and electrically connected with the main touch display screen and the auxiliary touch display screen; A power supply module mounted on the mounting frame and used for supplying power to the controller, the first motor, the second motor, the main touch display screen and the auxiliary touch display screen.

6. The multi-screen presentation interactive system of claim 5, wherein, Further comprising: A communication module mounted on the mounting frame and electrically connected with the controller and the power supply module; A cloud platform in communication connection with the communication module; A mobile terminal in communication connection with the cloud platform.

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