Urban and rural planning sand table display stand

Abstract

The invention discloses an urban and rural planning sand table display stand, and belongs to the technical field of sand table display stands, the urban and rural planning sand table display stand comprises a main body module and a night scene display module, the main body module comprises a support table, the top of the support table is provided with a sand table main body, and the sand table main body is provided with a plurality of window lamps and a plurality of public facility lamps; the multiple window lamps are randomly divided into multiple groups, the number of the window lamps in each group is gradually increased in sequence, two cloth outlet grooves are formed in the top of the supporting table, and by arranging a limiting assembly, a camera, a display device, a rolling assembly, a shading film, a multi-section type power supply assembly and a driving assembly, the natural illumination gradual change process from sunset to night is achieved; and the time sequence effect that the urban light is sequentially turned on along with the darkening of the sky is achieved, the generation logic of the urban night scene is reproduced more truly, the problem that the traditional sand table night scene display is stiff and unnatural is thoroughly solved, and the reality sense and immersion sense of planning display are greatly enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sand table display stands, and more particularly to a rural and urban planning sand table display stand. BACKGROUND

[0002] When designing building models, there are many different types of building models, different building models have different characteristics, and the materials used are also different. Different building models are also different in application occasions. Sand table model is a form of expression of system, process, thing or concept, and also refers to a sample made according to experiments, drawings, enlargement or reduction, which is generally used for exhibition or experiment or mold for casting machine parts, etc. In rural and urban planning and construction, a sand table display stand is usually used to display the sand table.

[0003] For the above related technologies, although the sand table in the prior art can display the overall state of the city, its display dimension is limited to static space, and it cannot present the dynamic features of the city changing with day and night, greatly weakening the completeness and expressiveness of the planning display. Even if some sand tables introduce a night scene mode, the implementation way is often too simple and idealistic. Usually, LED lamp beads are installed in the building model, and all lights are controlled to be turned on at the same time through a single switch. This lighting scheme has obvious defects: on the one hand, it completely ignores the dynamic process of natural light intensity gradient, resulting in rigid and lack of immersion of the display effect, and cannot accurately convey the livable living atmosphere expected to be created by the planning scheme, affecting the authenticity of the display. Therefore, a rural and urban planning sand table display stand is proposed. SUMMARY

[0004] In order to solve the above problems, the present application provides a rural and urban planning sand table display stand, which adopts the following technical scheme:

[0005] The utility model provides an urban and rural planning sand table display stand, including main module and night scene display module, the main module includes support platform, the top of support platform sets up sand table main part, be provided with a plurality of window lamps and a plurality of public facilities lamps on sand table main part, a plurality of window lamps are randomly divided into groups, and the number of each group of window lamps is sequentially increased, the top of support platform is provided with two cloth grooves, the night scene display module includes two limit components that are fixedly connected on the both sides of the top of support platform, two cross bars are fixedly connected between two limit components, two cameras are fixedly connected on two cross bars, the front end surface of support platform is provided with display device, display device is electrically connected with four cameras, the both sides between the inner wall of support platform are provided with rolling component, the rolling component is provided with shading film, the shading film is divided into multiple sections, the light transmittance of each section of shading film is different, and the light transmittance of multiple sections of shading film is sequentially increased, the rear end surface of support platform is provided with multiple section type power supply components connected with rolling component, a plurality of window lamps and public facilities lamps are electrically connected with multiple section type power supply components, one side of support platform is provided with driving component and two resistance components connected with rolling component, and the driving component is connected with one of resistance components.

[0006] Further, the rolling component includes two winding and unwinding rollers rotatably connected between the inner walls of the support platform, one end of each of the two winding and unwinding rollers extends to the outside of the support platform, and a transmission gear is fixedly connected to one end of each of the two winding and unwinding rollers. The outer surface of one of the winding and unwinding rollers is provided with two receiving grooves, and a connecting belt is connected between the inner walls of the two receiving grooves and the outer surface of the other winding and unwinding roller. The two connecting belts are wound around the outer surface of the other winding and unwinding roller, and both of the connecting belts extend to the top of the support platform. Limiting grooves are formed in the upper and lower parts of the outer surfaces of the two connecting belts, and the shading film (250) is connected between the two connecting belts (244).

[0007] Further, the limiting component includes an arc plate fixedly connected to one side of the top of the support platform, one end of each of the two cross bars is fixedly connected to one side of the arc plate, an arc-shaped groove is formed in one side of the arc plate, one of the connecting belts penetrates through the arc-shaped groove, and a plurality of limiting wheels are rotatably connected inside the arc-shaped groove. Each of the limiting wheels is in contact with the inner walls of the two limiting grooves on the outer surface of the connecting belt.

[0008] Further, the multi-section power supply assembly comprises a mounting frame fixedly connected to the rear end surface of the support table, long rods rotatably connected between the inner walls of the mounting frame, an engaging gear fixedly connected to one end of the long rod, and a plurality of threaded portions provided on the outer surface of the long rod, wherein the lengths of the threaded portions gradually increase, a moving groove is formed in the rear end surface of the support table, a plurality of power receiving seats are slidably connected in the moving groove, a plurality of window lamps are connected to the power receiving seats, the power receiving seats are threadedly connected to the threaded portions, and the power receiving seats are fixedly connected with pressure springs on both sides.

[0009] Further, the multi-section power supply assembly further comprises a plurality of power supply seats fixedly connected to the front end surface of the inner wall of the mounting frame, wherein the intervals between the power supply seats gradually increase, the outer surfaces of the power supply seats are fixedly connected with abutting seats, the abutting seats are located outside the long rod, the power supply seats are adapted to the power receiving seats, and the public facility lamps are connected to one of the power supply seats.

[0010] Further, the driving assembly comprises a driving groove formed in one side of the support table, a moving plate slidably connected in the driving groove, a driving motor installed on one side of the moving plate, a driving gear fixedly connected to the output shaft of the driving motor and extending to the other side of the moving plate, and a driving gear engaged with one of the transmission gears.

[0011] Further, the driving assembly further comprises an empty block fixedly connected to the other side of the moving plate and a handle, a control handle movably connected in the empty block, torsion springs fixedly connected between the control handle and the two sides of the empty block, two clamping blocks fixedly connected to one side of the support table, and the control handle movably clamped in one of the clamping blocks.

[0012] Further, the resistance assembly comprises a resistance block fixedly connected to the outer surface of the winding and unwinding roller, an installation sleeve fixedly connected to one side of the inner wall of the support table, a resistance rod slidably connected in the installation sleeve, a resistance spring fixedly connected between the bottom of the installation sleeve inner wall and the bottom end of the resistance rod, and a slope block fixedly connected to the outer surface of the resistance rod.

[0013] Further, the resistance assembly further comprises a slope block fixedly connected to the outer surface of the resistance rod, wherein the slope block is in the shape of a right trapezoid, and the outer surface of the slope block is in contact with the roller.

[0014] Further, the main body module comprises a protective box fixedly connected to the outer surface of the support table, wherein the mounting frame, the moving plate, and the two transmission gears are located in the protective box, and an adjusting door is hingedly connected to one side of the protective box.

[0015] In summary, the present application includes the following beneficial technical effects:

[0016] (1) The present application sets up limiting assembly, camera, display device, rolling assembly, light shielding film, multi-section power supply assembly and driving assembly, accurately controls the phased covering of light shielding film and the grouped lighting of light through mechanical linkage mode, realizes the natural light illumination gradual change process from sunset to night, the timing effect that city light is opened in turn as the sky darkens, the mechanical dynamic display mode not only greatly reduces the implementation cost, improves the system reliability, more truly reproduces the generation logic of city night scene, completely solves the rigid and unnatural problem of traditional sand table night scene display, greatly enhances the reality and immersion of planning display.

[0017] (2) The present application sets up mounting sleeve, resistance rod, resistance block, resistance spring and slope block, can provide appropriate friction resistance, ensures the smooth and uniform motion of light shielding film in the covering process, avoids the excessive winding of light shielding film caused by inertia, guarantees the smoothness of light and shadow transition and the stability of display effect, makes the whole night scene change process smooth and controllable.

[0018] (3) The present application sets up moving plate, control handle, clamping block, driving motor and driving gear, can switch different meshing relationships, so as to easily realize recycling reset, which makes the whole display platform can quickly prepare for the next demonstration, the operation is simple, the reset is accurate, greatly improves the ease of use and display efficiency of the equipment, is convenient for frequent exhibition and demonstration requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the internal structure schematic view of the protective box of the present application;

[0020] Figure 2 It is the overall structure schematic view of the present application;

[0021] Figure 3 It is the internal structure schematic view of the supporting table of the present application;

[0022] Figure 4 It is the structure schematic view of the driving assembly of the present application;

[0023] Figure 5 It is the structure schematic view of the rolling assembly of the present application;

[0024] Figure 6 It is the structure schematic view of the multi-section power supply assembly of the present application;

[0025] Figure 7 It is the local sectional structure schematic view of the resistance assembly of the present application;

[0026] Figure 8Partial sectional view structure schematic diagram of the limiting assembly of the present application;

[0027] Figure 9 Partial sectional view structure schematic diagram of the limiting assembly of the present application Figure 2 Enlarged structure schematic diagram of A in the present application;

[0028] Figure 10 Partial sectional view structure schematic diagram of the limiting assembly of the present application Figure 4 Enlarged structure schematic diagram of B in the present application;

[0029] Figure 11 Partial sectional view structure schematic diagram of the limiting assembly of the present application Figure 5 Enlarged structure schematic diagram of C in the present application;

[0030] Figure 12 Partial sectional view structure schematic diagram of the limiting assembly of the present application Figure 6 Enlarged structure schematic diagram of D in the present application;

[0031] Figure 13 Unfolding schematic diagram of the light shielding film of the present application.

[0032] Explanation of the figure marks:

[0033] 100, main body module; 110, support table; 120, sand table main body; 130, window lamp; 140, public facility lamp; 150, protection box; 160, adjustment door;

[0034] 200, night scene display module; 210, limiting assembly; 211, arc plate; 212, arc-shaped groove; 213, limiting wheel; 220, camera; 230, display device; 240, rolling assembly; 241, winding and unwinding roller; 242, transmission gear; 243, storage groove; 244, connecting belt; 245, limiting groove; 250, light shielding film; 260, multi-section power supply assembly; 261, mounting rack; 262, long rod; 263, linking gear; 264, threaded part; 265, power connection seat; 266, pressure spring; 267, power supply seat; 268, abutting seat; 270, driving assembly; 271, moving plate; 272, driving motor; 273, driving gear; 274, hollow block; 275, clamping block; 276, control handle; 277, torsion spring; 278, handle; 279, mounting rod; 2710, roller; 280, resistance assembly; 281, mounting sleeve; 282, resistance rod; 283, resistance block; 284, resistance spring; 285, slope block. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0036] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The above and other embodiments of the present application will be more apparent from the following detailed description in conjunction with the accompanying drawings, in which: Figures 1-13 The present application will be further described in detail.

[0039] Please refer to Figures 1-13 A kind of urban and rural planning sand table display stand, including main module 100 and night scene display module 200, main module 100 includes support table 110, the top of support table 110 is provided with sand table main body 120, sand table main body 120 is provided with multiple window lamps 130 and multiple public facilities lamps 140, multiple window lamps 130 are randomly divided into multiple groups, the number of each group of window lamps 130 is sequentially increased, two cloth grooves are opened in the top of support table 110, night scene display module 200 includes two limit components 210 respectively fixedly connected in the top of support table 110 two sides, two cross bars are fixedly connected between the two limit components 210, two cross bars are all fixedly connected with two cameras 220, the front end surface of support table 110 is provided with display device 230, display device 230 is electrically connected with four cameras 220, rolling assembly 240 is arranged between the two sides of the inner wall of support table 110, shading film 250 is arranged on rolling assembly 240, shading film 250 is divided into multiple sections, the light transmittance of each section of shading film 250 is different, and the light transmittance of multiple sections of shading film 250 is sequentially increased, the rear end surface of support table 110 is provided with multiple section type power supply assembly 260 connected with rolling assembly 240, multiple window lamps 130 and public facilities lamps 140 are electrically connected with multiple section type power supply assembly 260, one side of support table 110 is provided with driving assembly 270 connected with rolling assembly 240 and two resistance components 280, driving assembly 270 is connected with one of resistance components 280.

[0040] In use, the present showcase is placed in a stable indoor light source position, the sand table body 120 is normally displayed, when night scene display is needed, the driving assembly 270 is opened, the driving assembly 270 will drive the rolling assembly 240, the rolling assembly 240 will pull the first section of the light shielding film 250 through the two limiting assemblies 210 to cover the sand table body 120, thereby reducing the brightness between the limiting assembly 210 and the light shielding film 250, at the same time the rolling assembly 240 drives the multi-section power supply assembly 260, the multi-section power supply assembly 260 will open the first set of window lights 130 and the public facility lights 140, thereby displaying the initial section of the night scene, at this time the driving assembly 270 is closed, the night scene picture is photographed by the camera 220 and transmitted to the display device 230 for external display, after the display is completed, the driving assembly 270 is opened again, the driving assembly 270 continues to drive the rolling assembly 240, the rolling assembly 240 pulls another section of the light shielding film 250 into the two limiting assemblies 210, thereby further reducing the brightness, at this time the next set of window lights 130 is opened, the number of the second set of window lights 130 is more than that of the first set, thereby more closely fitting the actual situation, thereby presenting the next stage of the night scene, the driving assembly 270 is opened again, the next section of the light shielding film 250 is covered, the third set of window lights 130 is opened, the number of the third set of window lights 130 is greater than that of the second set, and so on, until the darkest night scene is presented and all the window lights 130 are opened, so that the present sand table can present different stages of the night scene, achieve the expected life atmosphere display effect, and make the night scene display of the present showcase more realistic.

[0041] The rolling assembly 240 comprises two winding and unwinding rollers 241 rotationally connected between the inner walls of the support table 110 on both sides, one end of the two winding and unwinding rollers 241 extends to the outside of the support table 110, and one end of the two winding and unwinding rollers 241 is fixedly connected with a transmission gear 242. The outer surface of one of the winding and unwinding rollers 241 is provided with two receiving grooves 243, the inner walls of the two receiving grooves 243 are connected with the outer surface of the other winding and unwinding roller 241, and the two connecting belts 244 are wound around the outer surface of the other winding and unwinding roller 241. The two connecting belts 244 extend to the top of the support table 110, the upper and lower parts of the outer surfaces of the two connecting belts 244 are provided with limiting grooves 245, the light shielding film 250 is connected between the two connecting belts 244, the limiting assembly 210 comprises an arc plate 211 fixedly connected to one side of the top of the support table 110, one end of the two cross rods is fixedly connected to one side of the arc plate 211, and an arc-shaped groove 212 is formed in one side of the arc plate 211. One of the connecting belts 244 penetrates through the arc-shaped groove 212, a plurality of limiting wheels 213 are rotationally connected in the arc-shaped groove 212, the plurality of limiting wheels 213 are in contact with the inner walls of the two limiting grooves 245 in the outer surface of the connecting belt 244, and the multi-section power supply assembly 260 comprises a mounting frame 261 fixedly connected to the rear end face of the support table 110. A long rod 262 is rotationally connected between the inner walls of the mounting frame 261, one end of the long rod 262 is fixedly connected with a connecting gear 263, the outer surface of the long rod 262 is provided with a plurality of threaded portions 264, the lengths of the plurality of threaded portions 264 gradually increase, a moving groove is formed in the rear end face of the support table 110, a plurality of power supply sockets 265 are slidably connected in the moving groove, a plurality of window lamps 130 are connected with the plurality of power supply sockets 265, the plurality of power supply sockets 265 are threadedly connected with the plurality of threaded portions 264, and the two sides of the plurality of power supply sockets 265 are fixedly connected with pressure springs 266. The multi-section power supply assembly 260 further comprises a plurality of power supply sockets 267 fixedly connected to the front end face of the inner wall of the mounting frame 261, the distances between the plurality of power supply sockets 267 gradually increase, the outer surfaces of the plurality of power supply sockets 267 are fixedly connected with abutting seats 268, the plurality of abutting seats 268 are located outside the long rod 262, the plurality of power supply sockets 267 are matched with the plurality of power supply sockets 265, and the plurality of public facility lamps 140 are connected with one of the power supply sockets 267. The driving assembly 270 comprises a driving groove formed in one side of the support table 110, a moving plate 271 is slidably connected in the driving groove, a driving motor 272 is installed on one side of the moving plate 271, an output shaft of the driving motor 272 extends to the other side of the moving plate 271 and is fixedly connected with a driving gear 273, the driving gear 273 is engaged with one of the transmission gears 242, one side of the moving plate 271 is fixedly connected with a mounting rod 279, the outer surface of the mounting rod 279 is rotationally connected with a roller 2710, and the driving assembly 270 further comprises an inner hollow block 274 and a handle 278 fixedly connected to the other side of the moving plate 271.The inner space block 274 is movably connected with a control handle 276, and the control handle 276 is fixedly connected with a torsion spring 277 between two sides of the inner space block 274.

[0042] The driving motor 272 is turned on, and the driving motor 272 drives one of the transmission gears 242, and the transmission gear 242 drives one of the winding and unwinding rollers 241 to rotate and pull the two connecting belts 244, at this time, the plurality of limiting wheels 213 roll, and the two connecting belts 244 are respectively received into the two receiving grooves 243, at this time, the other winding and unwinding roller 241 is pulled to rotate, so that the first section of the light shielding film 250 passes through the two limiting assemblies 210 to cover the sand table body 120 in an arc shape, thereby reducing the brightness between the limiting assembly 210 and the light shielding film 250, and at the same time, the transmission gear 242 drives the engaging gear 263, and the engaging gear 263 drives the plurality of power connection seats 265 to move on the plurality of threaded portions 264 through the threaded portions 264, the power connection seat 265 on the shortest threaded portion 264 drives the pressure spring 266 to contact one of the abutting seats 268, so that the power connection seat 265 compresses the pressure spring 266, and then the power connection seat 265 falls off from the shortest threaded portion 264, and at the same time, one of the power connection seats 265 is connected with one of the power supply seats 267, and the connection between the power connection seat 265 and the power supply seat 267 turns on the first group of window lamps 130 and the public facility lamp 140, thereby showing the first section of the night scene, at this time, the driving motor 272 is turned off, and the night scene picture is captured by the camera 220 and transmitted to the display device 230 to be displayed externally, after the display is completed, the driving motor 272 is turned on again, and the driving gear 273 continues to drive the transmission gear 242, and the winding and unwinding roller 241 pulls the other section of the light shielding film 250 into the two cam plates 211, thereby further reducing the brightness, at this time, the next power connection seat 265 is connected with the other power supply seat 267, so that the second group of window lamps 130 is turned on, the number of the second group of window lamps 130 is more than that of the first group, thereby being more consistent with the actual situation, and then presenting the next stage of the night scene, the driving motor 272 is turned on again, the next section of the light shielding film 250 is covered, the third group of window lamps 130 is turned on, the number of the third group of window lamps 130 is greater than that of the second group of window lamps 130, and so on, until the night scene with the darkest degree is presented and all the window lamps 130 are turned on, so that the sand table can present different stages of the night scene.

[0043] The resistance assembly 280 comprises a resistance block 283 fixedly connected to the outer surface of the winding and releasing roller 241, one side of the inner wall of the support table 110 is fixedly connected with a mounting sleeve 281, the inside of the mounting sleeve 281 is slidably connected with a resistance rod 282, the top end of the resistance rod 282 is adapted to the outer surface of the resistance block 283, and the bottom end of the resistance rod 282 is fixedly connected with a resistance spring 284 between the bottom of the inner wall of the mounting sleeve 281, and the resistance assembly 280 further comprises an inclination block 285 fixedly connected to the outer surface of the resistance rod 282, the inclination block 285 is in the shape of a right trapezoid, and the outer surface of the inclination block 285 is in contact with the roller 2710.

[0044] When the winding and releasing roller 241 rotates, the resistance rod 282 is in contact with the resistance block 283 through the elastic force of the resistance spring 284, so that the resistance during the rotation of the winding and releasing roller 241 is increased, so that the shading film 250 can be more stable during covering, and through the cooperation of the roller 2710 and the inclination block 285, the resistance of the winding and releasing roller 241 away from the driving side can be always increased, and the stability of the shading film 250 is maintained.

[0045] The main body module 100 comprises a protection box 150 fixedly connected to the outer surface of the support table 110, the mounting frame 261, the moving plate 271 and the two transmission gears 242 are located in the interior of the protection box 150, and one side of the protection box 150 is hingedly connected with an adjusting door 160.

[0046] Through the arrangement of the protection box 150, part of the parts can be protected, so that the parts are not directly exposed to the outside and are not affected by the use, and meanwhile, the adjusting door 160 can be opened, so that the adjustment of the driving assembly 270 is facilitated.

[0047] The implementation principle of the embodiment of the present application is that: in use, the display stand is placed in a position with stable indoor light source, and the sand table body 120 normally displays; when night scene display is needed, the driving motor 272 is turned on, the driving motor 272 will drive one of the transmission gears 242, the transmission gear 242 will drive one of the winding and unwinding rollers 241 to pull the two connecting belts 244, at this time, the plurality of limiting wheels 213 roll, the two connecting belts 244 are respectively received into the interiors of the two storage grooves 243, at this time, the other winding and unwinding roller 241 is pulled to rotate, so that the first section of the light shielding film 250 passes through the two limiting assemblies 210 to cover the sand table body 120 in an arc-shaped form, thereby reducing the brightness between the limiting assembly 210 and the light shielding film 250, and at the same time, one of the transmission gears 242 drives the engagement gear 263, the engagement gear 263 will drive the plurality of power connection seats 265 to move on the plurality of threaded portions 264 through the threaded portions 264, the power connection seat 265 on the shortest threaded portion 264 will drive the pressure spring 266 to contact one of the abutting seats 268, so that the power connection seat 265 compresses the pressure spring 266, then the power connection seat 265 falls off from the shortest threaded portion 264, and at the same time, one of the power connection seats 265 is connected with one of the power supply seats 267, the connection of one of the power connection seats 265 and one of the power supply seats 267 will turn on the first group of window lamps 130 and the public facility lamp 140, thereby displaying the first section of the night scene, at this time, the driving motor 272 is turned off, the night scene picture is captured by the camera 220 and transmitted to the display device 230 to be displayed externally, after the display is completed, the driving motor 272 is turned on again, the driving gear 273 continues to drive the transmission gear 242, and the winding and unwinding roller 241 pulls the other section of the light shielding film 250 into the two cam plates 211, thereby further reducing the brightness, at this time, the next power connection seat 265 is connected with the other power supply seat 267, so that the second group of window lamps 130 are turned on, the number of the second group of window lamps 130 is more than that of the first group, thereby being more consistent with the actual situation, and the next stage of the night scene is presented, the driving motor 272 is turned on again, the next section of the light shielding film 250 is covered, the third group of window lamps 130 are turned on, the number of the third group of window lamps 130 is greater than that of the second group of window lamps 130, and so on, until the darkest night scene is presented and all the window lamps 130 are turned on, so that the sand table can present different stages of the night scene, achieve the expected life atmosphere display effect, and make the night scene display of the display stand more realistic, when the winding and unwinding roller 241 rotates, the resistance rod 282 is in contact with the resistance block 283 through the elastic force of the resistance spring 284, thereby increasing the resistance when the winding and unwinding roller 241 rotates, so that the light shielding film 250 can be covered more stably, after the display is completed, the worker opens the adjusting door 160, then holds the handle 278 and pulls the control handle 276, so that the control handle 276 is withdrawn from one of the clamping blocks 275, at this time, the worker pushes the moving plate 271,The driving gear 273 is separated from one of the transmission gears 242 and connected with another transmission gear 242, at this time the roller 2710 rolls down from one of the slope blocks 285 and presses another slope block 285, so that the another slope block 285 is separated from the resistance block 283, thereby always making the winding and unwinding roller 241 far from the driving side to improve the resistance, keeping the sunshade film 250 stable, at this time the driving motor 272 is opened, the another winding and unwinding roller 241 can be wound, the power supply seat 265 is connected with the threaded part 264 through the elastic force of the pressure spring 266, so that the plurality of power supply seats 265 are separated from the plurality of power supply seats 267, thereby resetting the plurality of sunshade films 250 and the plurality of power supply seats 265, the driving motor 272 is moved to reset, is connected with one of the transmission gears 242 again, and the next display can be performed by opening the driving motor 272 again.

[0048] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A town and country planning sand table display stand, comprising a main body module (100) and a night scene display module (200), characterized in that: The main module (100) includes a support table (110), the top of the support table (110) is provided with a sand table body (120), a plurality of window lamps (130) and a plurality of public facility lamps (140) are arranged on the sand table body (120), the plurality of window lamps (130) are randomly divided into groups, and the number of the window lamps (130) in each group is sequentially increased, and two cloth outlet grooves are formed in the top of the support table (110); The night scene display module (200) includes two limiting assemblies (210) fixedly connected on the two sides of the top of the support table (110), two cross rods are fixedly connected between the two limiting assemblies (210), two camera heads (220) are fixedly connected on the two cross rods, a display device (230) is arranged on the front end face of the support table (110), the display device (230) is electrically connected with the four camera heads (220), a rolling assembly (240) is arranged between the two sides of the inner wall of the support table (110), a shading film (250) is arranged on the rolling assembly (240), the shading film (250) is divided into multiple sections, the light transmittance of each section of the shading film (250) is different, and the light transmittance of the multiple sections of the shading film (250) is sequentially increased, a multi-section power supply assembly (260) connected with the rolling assembly (240) is arranged on the rear end face of the support table (110), and multiple groups of the window lamps (130) and the public facility lamps (140) are electrically connected with the multi-section power supply assembly (260), a driving assembly (270) connected with the rolling assembly (240) and two resistance assemblies (280) are arranged on one side of the support table (110), and the driving assembly (270) is connected with one of the resistance assemblies (280).

2. The urban and rural planning sand table display table according to claim 1, characterized in that: The rolling assembly (240) includes two winding and unwinding rollers (241) rotationally connected between the two sides of the inner wall of the support table (110), one end of each of the two winding and unwinding rollers (241) extends to the outside of the support table (110), a transmission gear (242) is fixedly connected to one end of each of the two winding and unwinding rollers (241), two receiving grooves (243) are formed in the outer surface of one of the winding and unwinding rollers (241), a connecting belt (244) is connected between the inner wall of each of the two receiving grooves (243) and the outer surface of the other winding and unwinding roller (241), the two connecting belts (244) are wound around the outer surface of the other winding and unwinding roller (241), the two connecting belts (244) extend to the top of the support table (110), and a limiting groove (245) is formed in the upper and lower portions of the outer surface of each of the two connecting belts (244), and the shading film (250) is connected between the two connecting belts (244).

3. The urban and rural planning sand table display stand according to claim 2, characterized in that: The limiting assembly (210) includes the arc plate (211) fixedly connected to one side of the top of the support table (110), one end of the two transverse rods is fixedly connected with one side of the arc plate (211), one side of the arc plate (211) is provided with an arc-shaped groove (212), one of the connecting bands (244) penetrates through the arc-shaped groove (212), and a plurality of limiting wheels (213) are rotatably connected in the arc-shaped groove (212). A plurality of limiting wheels (213) are respectively in contact with the inner walls of the two limiting grooves (245) on the outer surface of one of the connecting bands (244).

4. The urban and rural planning sand table display stand according to claim 3, characterized in that: The multi-section power supply assembly (260) includes the mounting frame (261) fixedly connected to the rear end face of the support table (110), the long rod (262) rotatably connected between the inner walls of the two sides of the mounting frame (261), the long rod (262) is fixedly connected with the engaging gear (263) at one end, the long rod (262) is provided with a plurality of threaded portions (264) on the outer surface, the lengths of the plurality of threaded portions (264) gradually increase, the rear end face of the support table (110) is provided with a moving groove, and the moving groove is internally and slidably connected with a plurality of power receiving seats (265). A plurality of window lamps (130) are connected with the plurality of power receiving seats (265), respectively, a plurality of power receiving seats (265) are threadedly connected with a plurality of threaded portions (264), respectively, and a plurality of power receiving seats (265) are fixedly connected with pressure springs (266) on the two sides.

5. The urban and rural planning sand table display stand according to claim 4, characterized in that: The multi-section power supply assembly (260) further includes a plurality of power supply seats (267) fixedly connected to the front end face of the inner wall of the mounting frame (261), the spacing between the plurality of power supply seats (267) gradually increases, the outer surface of the plurality of power supply seats (267) is fixedly connected with a plurality of abutting seats (268), the plurality of abutting seats (268) are located outside the long rod (262), the plurality of power supply seats (267) are adapted to the plurality of power receiving seats (265), respectively, and the plurality of public facility lamps (140) are connected with one of the power supply seats (267).

6. The urban and rural planning sand table display stand according to claim 5, characterized in that: The driving assembly (270) includes the driving groove formed in one side of the support table (110), the moving plate (271) is slidably connected in the driving groove, the driving motor (272) is installed on one side of the moving plate (271), the output shaft of the driving motor (272) extends to the other side of the moving plate (271) and is fixedly connected with the driving gear (273), the driving gear (273) is engaged with one of the transmission gears (242), the mounting rod (279) is fixedly connected on one side of the moving plate (271), and the roller (2710) is rotatably connected to the outer surface of the mounting rod (279).

7. The urban and rural planning sand table display stand according to claim 6, characterized in that: The driving assembly (270) further includes an inner hollow block (274) fixedly connected to the other side of the moving plate (271), and a handle (278), an inside of the inner hollow block (274) is movably connected with a control handle (276), both sides of the control handle (276) and the inner hollow block (274) are fixedly connected with torsion springs (277), one side of the supporting table (110) is fixedly connected with two clamping blocks (275), and the control handle (276) is movably clamped in the inside of one of the clamping blocks (275).

8. The urban and rural planning sand table display stand according to claim 7, characterized in that: The resistance assembly (280) includes a resistance block (283) fixedly connected to the outer surface of the winding and unwinding roller (241), one side of the inner wall of the supporting table (110) is fixedly connected with a mounting sleeve (281), the inside of the mounting sleeve (281) is slidably connected with a resistance rod (282), the top end of the resistance rod (282) is matched with the outer surface of the resistance block (283), and the bottom end of the resistance rod (282) and the bottom of the inner wall of the mounting sleeve (281) are fixedly connected with a resistance spring (284).

9. The urban and rural planning sand table display table according to claim 8, characterized in that: The resistance assembly (280) further includes an inclination block (285) fixedly connected to the outer surface of the resistance rod (282), the inclination block (285) is in a shape of a straight-angle trapezoid, and the outer surface of the inclination block (285) is in contact with the roller (2710).

10. The urban and rural planning sand table display table according to claim 9, characterized in that: The main body module (100) includes a protection box (150) fixedly connected to the outer surface of the supporting table (110), the mounting frame (261), the moving plate (271) and the two transmission gears (242) are located in the inside of the protection box (150), and one side of the protection box (150) is hingedly connected with an adjusting door (160).

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