Composite sand table demonstration device

Abstract

The present invention provides a composite sand table demonstration device; including a virtual demonstration mechanism and a sand table adjustment mechanism; the sand table adjustment mechanism includes a support plate, a plurality of scissor-type lifting platforms, a plurality of track assemblies and a plurality of first electric slides, the upper end surface of the support plate is an area for placing a physical sand table, the first slide rail of the track assembly is fixed to the support plate by bolts, the second slide rail is fixed to the upper end of the scissor-type lifting platform by bolts, the base of the first electric slide is fixedly connected to the second slide rail of the track assembly, and the sliding part of the first electric slide is fixedly connected to the support plate; the virtual demonstration mechanism includes a support frame and a transparent display screen, the support frame has a cavity inside, the upper end surface of the support frame is open, and the transparent display screen is horizontally placed at the opening of the support frame. The beneficial technical effect is: a multimedia interactive demonstration system composed of a traditional sand table and a transparent display screen covering it is applied to fields where physical sand tables need to be replaced from time to time or even frequently.

Description

Technical Field

[0001] The invention belongs to the field of multimedia interactive display, and in particular relates to a composite sand table demonstration device capable of virtual and real interaction. Background Art

[0002] At present, there are more and more cases of multimedia interactive display systems that combine electronic display technology with traditional sand tables. The main development directions are: intelligent dynamic display sand tables composed of physical sand tables and LED lights; intelligent dynamic display sand tables composed of physical sand tables and dynamic projections; multimedia interactive digital sand tables composed of traditional sand tables or intelligent dynamic display sand tables and wall-mounted display screens. These multimedia interactive display systems have their own advantages and disadvantages in different application fields.

[0003] However, at present, this type of multimedia interactive demonstration system still uses a traditional sandbox box to fix the physical sandbox, which is not convenient for replacing the physical sandbox, nor for adjusting the real-time height of the physical sandbox to reduce the position offset between the virtual imaging and the physical sandbox caused by side vision. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a composite sand table demonstration device with reasonable structure and convenient sand table replacement, which can combine a traditional sand table with a transparent display screen covering it to form a multimedia interactive demonstration device.

[0005] In order to solve the above technical problems, the present invention provides a composite sand table demonstration device;

[0006] Including virtual demonstration mechanism and sandbox adjustment mechanism;

[0007] The sandbox adjustment mechanism includes a support plate, a plurality of scissor-type lifting platforms, a plurality of track assemblies and a plurality of first electric slides. The upper end surface of the support plate is an area for placing a physical sandbox. The scissor-type lifting platform is fixed to the support plate through a track assembly. The track assembly includes a first slide rail and a second slide rail that cooperate with each other. The first slide rail is fixed to the support plate by bolts, and the second slide rail is fixed to the upper end of the scissor-type lifting platform by bolts. The direction of the track assembly is left and right. The base of the first electric slide is fixedly connected to the second slide rail of the track assembly. The sliding part of the first electric slide is fixedly connected to the support plate. The scissor-type lifting platform drives the support plate to rise and fall, and all the scissor-type lifting platforms rise and fall synchronously.

[0008] The virtual demonstration mechanism includes a support frame and a transparent display screen. The support frame has a cavity inside for placing a sandbox adjustment mechanism. The upper end face of the support frame is open. The transparent display screen is horizontally placed at the opening of the support frame. The side wall of the support frame is provided with a through hole for the support plate to enter and exit.

[0009] After adopting such a structure, the sandbox adjustment mechanism adjusts the spatial position of the physical sandbox for physical demonstration, and the virtual demonstration mechanism controls the imaging of the transparent display screen for virtual demonstration. According to the content to be demonstrated, the mechanical device action and the transparent display screen imaging are uniformly controlled to achieve a sandbox demonstration effect of virtual-real interaction.

[0010] The beneficial technical effect of the present invention is that the multimedia interactive demonstration system composed of a traditional sandbox and a transparent display screen covering it can be applied to fields where the physical sandbox needs to be replaced from time to time or even frequently with relatively small financial and technical costs, and has high technical advantages.

[0011] The sand table adjustment mechanism of the composite sand table demonstration device also includes a limit bracket, which is connected to the support plate. After adopting such a structure, the limit bracket can limit the position of the physical sand table placed on the support plate.

[0012] The limit bracket of the composite sand table demonstration device is arranged on the support plate through two second electric slides, and the two second electric slides are respectively arranged at both ends of the limit bracket, and the sliding part of the second electric slide is fixed between the end of the limit bracket, and the base of the second electric slide is fixed between the support plate; after adopting such a structure, the two second electric slides are started to move to the maximum stroke position, and the limit bracket pushes the physical sand table to move a certain distance relative to the support plate, so that the left end face of the physical sand table extends out of the left end face of the support plate by a corresponding distance, so as to facilitate the removal of the physical sand table from the support plate or the replacement of a new sand table. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of an embodiment of the composite sand table demonstration device.

[0014] Figure 2 It is a three-dimensional diagram of the sandbox adjustment mechanism of the embodiment of the composite sandbox demonstration device.

[0015] Figure 3 It is a bottom view of the sandbox adjustment mechanism of the embodiment of the composite sandbox demonstration device.

[0016] Figure 4 It is a three-dimensional diagram of a scissor-type lifting platform of an embodiment of the composite sand table demonstration device. DETAILED DESCRIPTION

[0017] like Figures 1 to 4 As shown ( Figure 3 Four scissor lift platforms 12 are omitted.

[0018] According to the demonstration venue, a classroom needs to design and install this composite sand table demonstration device for teaching demonstration. According to the teaching needs, the composite sand table demonstration device should be a desktop layout, and the desktop size of the sand table demonstration table is determined to be 3 meters × 5 meters, and the height does not exceed 0.6 meters.

[0019] The physical sand table should be made in proportion to the range of the electronic map and should not exceed the above-mentioned size limit of 1.35m x 1.55m x 0.25m. To enhance the demonstration effect, the physical sand table is made of plastic and is made using mechanical engraving and color spraying technology.

[0020] The composite sand table demonstration device comprises a virtual demonstration mechanism and a sand table adjustment mechanism.

[0021] The sandbox adjustment mechanism includes a support plate 11 , a limit bracket 15 , four scissor-type lifting platforms 12 , two first electric slides 14 , two track assemblies and two second electric slides 16 .

[0022] The support plate 11 is a rectangular thin plate, and a groove 11a matching with the physical sand table is opened on the upper end surface of the support plate 11. The groove 11a runs through the left and right side walls of the support plate 11, and the physical sand table is placed in the groove 11a;

[0023] Four groups of scissor-type lifting platforms 12 are arranged in pairs, and each group of two scissor-type lifting platforms 12 is fixed to the support plate 11 through a group of track components. When the scissor-type lifting platform 12 is lowered to the lowest position, it must be no more than 0.1 meters, and when the scissor-type lifting platform 12 is raised to the highest position, it must be no less than 0.5 meters. The track component includes a first slide rail 13a and a second slide rail 13b that cooperate with each other. The first slide rail 13a is fixed to the support plate 11 by bolts, and the second slide rail 13b is fixed to the upper ends of the two scissor-type lifting platforms 12 in the same group by bolts, and the direction of the track component is left and right.

[0024] There is a one-to-one correspondence between the two sets of scissor-type lifting platforms 12, the two track assemblies and the two first electric slides 14. The base of the first electric slide 14 is fixed to the second slide rail 13b of the track assembly by bolts, and the sliding part of the first electric slide 14 is fixed to the support plate 11 by bolts.

[0025] The scissor-type lifting platform 12 is of a conventional structure. Four groups of scissor-type lifting platforms 12 drive the support plate 11 to rise and fall, and all the scissor-type lifting platforms 12 rise and fall synchronously.

[0026] The front and rear ends of the limit bracket 15 bypass the upper area of ​​the pallet 11 along the edge of the pallet 11, the middle part of the limit bracket 15 contacts the physical sand table, the left side wall of the middle part of the limit bracket 15 is flush with the left side wall of the pallet 11, the left part of the limit bracket 15 is on the upper side of the pallet 11, and the limit bracket 15 is arranged on the pallet 11 through two second electric slides 16, and the two second electric slides 16 are respectively arranged at both ends of the limit bracket 15, the sliding part of the second electric slide 16 is fixed to the end of the limit bracket 15 by bolts, and the base of the second electric slide 16 is also fixed to the pallet 11 by bolts.

[0027] The virtual demonstration mechanism includes a support frame 21 and a transparent display screen 22 .

[0028] The support frame 21 is a metal frame structure, and the size of the support frame 21 is 3 meters × 5 meters × 0.6 meters. Considering that the thickness of the frame of the support frame 21 is about 0.1 meters, the size of the transparent display screen 22 is determined to be 2.8 meters × 4.8 meters. The upper and lower layers of glass are thickened to increase the rigidity of the transparent display screen 22, which is installed on the side walls around the desktop of the support frame 21 and is located below the support frame.

[0029] The support frame 21 has a cavity inside for placing the sandbox adjustment mechanism. The upper end surface of the support frame 21 is open, and the transparent display screen 22 is horizontally placed at the opening of the support frame 21. The left side wall of the support frame 21 is provided with a through hole for the support plate 11 to move.

[0030] A light strip may also be provided in the support frame 21, and the light strip is made of an LED circuit board and installed inside the support frame 21. The light strip is used to highlight the physical sand table below the desktop to enhance the demonstration effect.

[0031] Before use, control the four scissor-type lifting platforms 12 to be synchronously lowered to the lowest position, start the two first electric slides 14 to move to the maximum stroke position, and the left end of the support plate 11 extends out of the support frame 21, so that the two second electric slides 16 maintain the minimum stroke position, and the left side wall of the middle part of the limit bracket 15 is flush with the left side wall of the support plate 11. After the physical sand table is placed in the groove 11a of the support plate 11, the right side wall of the physical sand table is in contact with the left side wall of the middle part of the limit bracket 15 to complete the positioning of the physical sand table, start the two first electric slides 14 to return to the minimum stroke position, and the four scissor-type lifting platforms 12 are lifted synchronously until the physical sand table moves to an appropriate height.

[0032] When in use, the physical sand table is coordinated with the transparent display screen 22 to realize interactive display of the transparent display screen 22 and the physical sand table, and the spatial position of the physical sand table can be controlled in real time to realize automatic replacement of the physical sand table, automatic adjustment of the distance and position between the physical sand table of different heights and sizes and the transparent display screen 22, and two-way interactive demonstration between the physical sand table display and the imaging of the transparent display screen 22.

[0033] When the physical sand table needs to be replaced or removed, the four scissor-type lifting platforms 12 are controlled to be synchronously lowered to the lowest position, the two first electric slides 14 are started and moved to the maximum stroke position, and the left end of the support plate 11 extends out of the support frame 21; similarly, the two second electric slides 16 are started and moved to the maximum stroke position, and the limit bracket 15 pushes the physical sand table to the left for a distance, so that the left end face of the physical sand table extends out of the left end face of the support plate 11 by a corresponding distance, which is convenient for removing the physical sand table from the support plate 11 or replacing a new sand table.

[0034] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art may make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as falling within the scope of protection of the present invention.

Claims

1. A composite sand table demonstration device, characterized by: Including virtual demonstration mechanism and sandbox adjustment mechanism; The sandbox adjustment mechanism includes a support plate, a plurality of scissor-type lifting platforms, a plurality of track assemblies and a plurality of first electric slides. The upper end surface of the support plate is an area for placing a physical sandbox. The scissor-type lifting platform is fixed to the support plate through a track assembly. The track assembly includes a first slide rail and a second slide rail that cooperate with each other. The first slide rail is fixed to the support plate by bolts, and the second slide rail is fixed to the upper end of the scissor-type lifting platform by bolts. The direction of the track assembly is left and right. The base of the first electric slide is fixedly connected to the second slide rail of the track assembly. The sliding part of the first electric slide is fixedly connected to the support plate. The scissor-type lifting platform drives the support plate to rise and fall, and all the scissor-type lifting platforms rise and fall synchronously. The virtual demonstration mechanism includes a support frame and a transparent display screen. The support frame has a cavity inside for placing a sandbox adjustment mechanism. The upper end surface of the support frame is open. The transparent display screen is horizontally placed at the opening of the support frame. The side wall of the support frame is provided with a through hole for the support plate to enter and exit. The sand table adjustment mechanism also includes a limit bracket, which is connected to the support plate; The limit bracket is arranged on the support plate through two second electric slides, the two second electric slides are respectively arranged at both ends of the limit bracket, the sliding part of the second electric slide is fixed between the end of the limit bracket, and the base of the second electric slide is fixed between the support plate; A light strip is arranged inside the support frame. The light strip is made of an LED circuit board and is installed on the inner side of the support frame.

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