Projection digital sand table

Abstract

The utility model relates to a projection digital sand table in the technical field of digital sand tables, a lifting device comprises a fixing column arranged at the top end of a storage seat, an adjusting assembly used for rotation is arranged in a column cavity of the fixing column, a driving assembly used for driving the adjusting assembly to rotate is arranged on the front side of the adjusting assembly, and a lifting device is arranged on the fixing column. A rod body of the adjusting assembly is in threaded connection with a moving assembly used for driving the projector to move up and down. When a first screw rod is driven to rotate through a hand wheel, a sand table can be lifted to the upper portion of a storage seat so that a model in a projector can be put into the sand table when needed, then a rotating shaft is driven to rotate through a rotating disc, and a second screw rod can synchronously rotate along with the rotating shaft under meshing connection of a first bevel gear and a second bevel gear; the movable plate can move up and down along the rod body of the second screw rod, and the top plates at the top ends of the four cylinders can be driven to move up and down, so that the height of the projector can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of digital sand tables, in particular to a projection digital sand table. Background Art

[0002] The digital sand table mainly uses a model made by a projection device to be projected onto a traditional sand table, and combines it with the physical model through sound, light, electricity, images, three-dimensional animation and computer program control technology; however, when the existing digital sand table is in use, it is impossible to adjust the angle and height of the projection device according to the digital sand table, which makes it inconvenient to use the digital sand table.

[0003] For example, a projection digital sand table with Chinese patent application number CN202120568831.4 is provided, in which a first hollow groove is excavated at the right end of the main body, two third telescopic rods are fixedly connected to the left inner wall of the first hollow groove, the right ends of the two third telescopic rods are fixedly connected to a placement plate, the front and rear sides of the upper end of the placement plate are fixedly connected to second telescopic rods, the upper ends of the two second telescopic rods are fixedly connected to a connecting plate, the upper end of the connecting plate is fixedly connected to a connecting box, the lower end of the connecting plate is fixedly connected to a limit box, and the interiors of the limit box and the connecting box are both excavated with a first hollow groove. Two hollow grooves, the right end of the limit box is rotatably connected to the first rotating rod, and the left end of the first rotating rod movably penetrates the right inner wall of the limit box and extends inward, the left end of the first rotating rod is fixedly connected to the first bevel gear, the circumferential surface of the first bevel gear is meshedly connected to the second bevel gear, the upper end of the second bevel gear is fixedly connected to the second rotating rod, and the upper end of the second rotating rod movably penetrates the upper end of the connecting plate and extends upward, the upper end of the second rotating rod is fixedly connected to the projection transmitter, and the projection transmitter is located on the upper side of the connecting box, and the left end of the projection transmitter is fixedly connected to the projector. It has the following technical defects:

[0004] When using a projector to project onto a digital sand table, since the projection transmitter is fixedly connected to the rotating rod, although the rotation of the second rotating rod can be used to control the projector to adjust the angle, the height of the projector cannot be adjusted, which easily leads to the inability to adjust the height of the projector in time when digital projection is needed on the digital sand table; in addition, the sand table cannot be stored, which easily causes damage to the sand table. Utility Model Content

[0005] In order to solve the problem raised in the above background technology that when a projector is used to project on a digital sand table, since the projection transmitter is fixedly connected to the rotating rod, although the rotation of the second rotating rod can be used to control the angle adjustment of the projector, the height of the projector cannot be adjusted, which easily leads to the inability to adjust the height of the projector in time when digital projection is required on the digital sand table; and the sand table cannot be stored, which easily leads to damage to the sand table, the utility model provides the following technical solutions:

[0006] A projection digital sand table comprises a sand table, a storage seat for storing the sand table, and a projector for projecting a model onto the sand table. A storage device for storing the sand table in the storage seat is arranged in the seat body of the storage seat, and a lifting device for driving the projector to move up and down is arranged at the top of the storage seat.

[0007] The lifting device includes a fixed column arranged on the top of the storage seat, an adjusting component for rotation is arranged in the column cavity of the fixed column, a driving component for driving the adjusting component to rotate is arranged on the front side of the adjusting component, and a moving component for driving the projector to move up and down is threadedly connected to the rod body of the adjusting component.

[0008] Furthermore, the adjustment component includes a second screw rod disposed in the column cavity of the fixed column for rotation, and a second bevel gear for meshing connection with the driving component is disposed on the rod body of the second screw rod.

[0009] Furthermore, the driving assembly includes a rotating shaft plugged into the front end of the fixed column for rotation, the rear end of the rotating shaft is fixedly installed with a bevel gear 1 for meshing with bevel gear 2, and the front end of the rotating shaft is fixedly installed with a turntable for driving the rotating shaft to rotate.

[0010] Furthermore, the moving component includes a moving plate connected to the screw rod, and a cylinder for moving synchronously with the moving plate is fixedly installed on the top of the moving plate. There are four cylinders, which are distributed in a circular array on the top of the moving plate, and a top plate for installing the projector is fixedly installed on the top of the cylinder.

[0011] Furthermore, the storage device includes a screw rod 1 for rotation arranged in the seat body of the storage seat, a hand wheel for driving the screw rod 1 to rotate is fixedly installed on the top end of the screw rod 1, and a guide rod for guiding the sandbox is arranged in the seat body of the storage seat.

[0012] Furthermore, a moving block 1 for being threadably connected to the screw rod is fixedly installed at the rear end of the sand table, and a moving block 2 for sliding on the guide rod is fixedly installed at the front end of the sand table.

[0013] Furthermore, a support leg for supporting the storage seat is fixedly mounted at the bottom end of the storage seat, and there are four support legs, which are distributed in a linear array at the four corners of the bottom end of the storage seat.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By arranging a storage device and a lifting device, when the sand table stored in the storage seat is lifted, the screw rod 1 can be driven to rotate by the hand wheel, so that the moving block 1 welded on the rear end of the sand table can move upward along the rod body of the screw rod 1, and the moving block 2 welded on the front end of the sand table slides on the guide rod, so that the sand table can be lifted above the storage seat, so that when it is needed, the model in the projector can be placed on the sand table, and then the rotating shaft can be driven to rotate by the turntable, and under the meshing connection of the bevel gear 1 and the bevel gear 2, the screw rod 2 can be made to rotate synchronously with the rotating shaft, so that the moving plate can move up and down along the rod body of the screw rod 2, and at the same time, the top plates on the top ends of the four cylinders can be driven to move up and down, so that the height of the projector can be adjusted, and then the model in the projector can be placed on the sand table, so that the observer can watch it on the sand table through sound, light, electricity and image. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the storage seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the storage device of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the lifting device of the utility model.

[0020] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0021] 100-storage seat, 001-support leg;

[0022] 200-sand table, 201-moving block one, 202-moving block two;

[0023] 300-storage device, 310-hand wheel, 320-screw rod 1, 330-guide rod;

[0024] 400-projector;

[0025] 500-lifting device, 510-fixed column, 520-driving assembly, 521-turntable, 522-rotating shaft, 523-bevel gear one, 530-adjusting assembly, 531-screw rod two, 532-bevel gear two, 540-moving assembly, 541-moving plate, 542-cylinder, 543-top plate. DETAILED DESCRIPTION

[0026] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0027] See also Figure 1-Figure 4 , the utility model provides a projection digital sand table.

[0028] The digital sand table mainly adopts the method of projecting a model made by a projection device onto a traditional sand table, and combining the model with the physical model through sound, light, electricity, image, three-dimensional animation and computer program control technology; however, when using the existing digital sand table, it is impossible to adjust the angle and height of the projection device according to the digital sand table, which is not convenient for the use of the digital sand table; therefore, it is necessary to improve it, which includes a sand table 200, a storage seat 100 for storing the sand table 200, and a projector 400 for projecting the model onto the sand table 200, a storage device 300 for storing the sand table 200 in the storage seat 100 is provided in the seat body of the storage seat 100, and a lifting device 500 for driving the projector 400 to move up and down is provided at the top of the storage seat 100;

[0029] The bottom of the storage seat 100 is fixedly mounted with support legs 001 for supporting the storage seat 100, and there are four support legs 001, which are distributed in a linear array at the four corners of the bottom of the storage seat 100, and grooves are provided on the front and rear inner walls of the storage seat 100 to facilitate the movement of the storage device 300;

[0030] The rear end of the sand table 200 is fixedly installed with a moving block 201 for threaded connection with the screw rod 320, and the front end of the sand table 200 is fixedly installed with a moving block 202 for sliding on the guide rod 330, so that the sand table 200 can be lifted upward from the inside of the storage seat 100 through the storage device 300, and then the sand table 200 can be lifted to the storage seat 100, so that the observer can watch the sand table 200, and it is also convenient to store the sand table 200 in the storage seat 100 after use to prevent damage to the sand table 200;

[0031] The storage device 300 includes a screw rod 320 for rotation arranged in the seat body of the storage seat 100, and the upper and lower ends of the screw rod 320 are connected to the seat body of the storage seat 100 through bearings, so as to facilitate the rotation of the screw rod 320; a hand wheel 310 for driving the screw rod 320 to rotate is fixedly installed on the top of the screw rod 320, and a guide rod 330 for guiding the sand table 200 is arranged in the seat body of the storage seat 100, so that when the sand table 200 stored in the storage seat 100 is lifted, the screw rod 320 can be driven to rotate by the hand wheel 310, so that the moving block 201 welded on the rear end of the sand table 200 can be moved upward along the rod body of the screw rod 320, and at the same time, the moving block 202 welded on the front end of the sand table 200 slides on the guide rod 330, so that the sand table 200 can be lifted above the storage seat 100;

[0032] The lifting device 500 includes a fixed column 510 arranged on the top of the storage seat 100, and the fixed column 510 is fixed to the top of the storage seat 100 by bolts; an adjusting component 530 for rotation is arranged in the column cavity of the fixed column 510, and a driving component 520 for driving the adjusting component 530 to rotate is arranged on the front side of the adjusting component 530, and a moving component 540 for driving the projector 400 to move up and down is threaded on the rod body of the adjusting component 530; therefore, when it is necessary to lift the projector 400 according to the sand table 200 for projection, the driving component 520 can drive the adjusting component 530 to move the projector 400 on the moving component 540 up and down, so that the model in the projector 400 can be projected onto the sand table 200, so that the observer can watch it on the sand table 200 through sound, light, electricity, and images;

[0033] The adjustment assembly 530 includes a second screw rod 531 disposed in the column cavity of the fixed column 510 for rotation, and the upper and lower ends of the second screw rod 531 are connected to the upper and lower ends of the fixed column 510 through bearings to facilitate the rotation of the second screw rod 531; the rod body of the second screw rod 531 is provided with a second bevel gear 532 for meshing and connecting with the driving assembly 520;

[0034] The driving assembly 520 includes a rotating shaft 522 plugged into the front end of the fixed column 510 for rotation, and the rotating shaft 522 is connected to the front end of the fixed column 510 through a bearing, so as to facilitate the rotation of the rotating shaft 522; the rear end of the rotating shaft 522 is fixedly installed with a bevel gear 1 523 for meshing with the bevel gear 2 532, and the front end of the rotating shaft 522 is fixedly installed with a turntable 521 for driving the rotating shaft 522 to rotate, so that when the model in the projector 400 needs to be projected onto the sand table 2 00, and when the height of the projector 400 is adjusted, the rotating shaft 522 can be driven to rotate by the rotating disk 521, and under the meshing connection between the bevel gear 1 523 and the bevel gear 2 532, the screw 2 531 can be made to rotate synchronously with the rotating shaft 522, so that the projector 400 on the moving component 540 can be driven to adjust the height, and then the model in the projector 400 can be projected onto the sand table 200, so that the observer can watch it on the sand table 200 through sound, light, electricity, and image;

[0035] The moving assembly 540 includes a moving plate 541 connected to the screw rod 531 by threading, and a cylinder 542 for synchronously moving with the moving plate 541 is fixedly installed on the top of the moving plate 541, and there are four cylinders 542, which are distributed in a circular array on the top of the moving plate 541, and the four cylinders 542 penetrate the top of the fixed column 510; a top plate 543 for installing the projector 400 is fixedly installed on the top of the cylinder 542, and the projector 400 is installed on the top plate 543 by bolts; so that when it is necessary to project the model in the projector 400 into the sand table 200 and project the model, the top plate 543 can be fixedly installed on the top plate 543. When the height of the projector 400 is adjusted, the rotating shaft 522 can be driven to rotate by the turntable 521, and under the meshing connection between the bevel gear 1 523 and the bevel gear 2 532, the screw 2 531 can be made to rotate synchronously with the rotating shaft 522, so that the movable plate 541 can be moved up and down along the rod body of the screw 2 531, and at the same time, the top plate 543 on the top of the four cylinders 542 can be driven to move up and down, so that the height of the projector 400 can be adjusted, and then the model in the projector 400 can be projected onto the sand table 200, so that the observer can watch it on the sand table 200 through sound, light, electricity and image.

[0036] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A projection digital sand table, comprising a sand table (200), a storage seat (100) for storing the sand table (200), and a projector (400) for projecting a model onto the sand table (200), characterized in that: A storage device (300) for storing the sandbox (200) in the storage seat (100) is arranged inside the seat body of the storage seat (100), and a lifting device (500) for driving the projector (400) to move up and down is arranged at the top of the storage seat (100); The lifting device (500) comprises a fixed column (510) arranged on the top of the storage seat (100); an adjusting component (530) for rotation is arranged in the column cavity of the fixed column (510); a driving component (520) for driving the adjusting component (530) to rotate is arranged on the front side of the adjusting component (530); and a moving component (540) for driving the projector (400) to move up and down is threadedly connected to the rod body of the adjusting component (530).

2. A projection digital sandbox according to claim 1, characterized in that: The adjustment assembly (530) comprises a second screw rod (531) arranged in a column cavity of a fixed column (510) for rotation, and a second bevel gear (532) for meshing connection with the drive assembly (520) is arranged on the rod body of the second screw rod (531).

3. A projection digital sandbox according to claim 2, characterized in that: The driving assembly (520) comprises a rotating shaft (522) plugged into the front end of the fixed column (510) for rotation, a bevel gear 1 (523) for meshing with a bevel gear 2 (532) being fixedly mounted at the rear end of the rotating shaft (522), and a rotating disk (521) for driving the rotating shaft (522) to rotate being fixedly mounted at the front end of the rotating shaft (522).

4. A projection digital sand table according to claim 3, characterized in that: The moving assembly (540) comprises a moving plate (541) threadedly connected to the second screw rod (531); a cylinder (542) for synchronously moving with the moving plate (541) is fixedly mounted on the top of the moving plate (541); and there are four cylinders (542). The four cylinders (542) are distributed in a circular array on the top of the moving plate (541); and a top plate (543) for mounting the projector (400) is fixedly mounted on the top of the cylinder (542).

5. A projection digital sandbox according to claim 1, characterized in that: The storage device (300) comprises a screw rod (320) arranged in a seat body of the storage seat (100) for rotation, a hand wheel (310) for driving the screw rod (320) to rotate is fixedly mounted on the top end of the screw rod (320), and a guide rod (330) for guiding the sandbox (200) is arranged in the seat body of the storage seat (100).

6. A projection digital sandbox according to claim 5, characterized in that: A moving block 1 (201) for threaded connection with a screw rod 1 (320) is fixedly mounted on the rear end of the sand table (200), and a moving block 2 (202) for sliding on a guide rod (330) is fixedly mounted on the front end of the sand table (200).

7. A projection digital sandbox according to claim 1, characterized in that: A supporting leg (001) for supporting the storage seat (100) is fixedly mounted at the bottom end of the storage seat (100), and there are four supporting legs (001). The four supporting legs (001) are distributed in a linear array at the four corners of the bottom end of the storage seat (100).

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