Device for urban planning three-dimensional space analysis

Abstract

The invention discloses a device for urban planning three-dimensional space analysis, and relates to the field of urban planning appliances, the device comprises a mounting box, a storage cavity is formed in the middle of the mounting box, the upper end of the storage cavity is communicated with the upper surface of the mounting box in a penetrating manner, and a fixing mechanism is arranged in the storage cavity. Mounting cavities are formed in the left end and the right end of the bottom face of the mounting box correspondingly, and the upper end of the inner side face of each mounting cavity is rotationally connected with an optical axis of the end of a second lead screw through a bearing. The fixing mechanism is arranged in the storage cavity, when the device is used for carrying out three-dimensional display on a planning model, the three-dimensional projector body can be fixed in the containing disc through the clamping plate in the fixing mechanism, and the inclination angle of the three-dimensional projector body can be correspondingly adjusted through the fixing mechanism; therefore, a user can conveniently carry out corresponding adjustment according to actual requirements in the display process, and the applicability of the device is effectively improved.

Description

Technical Field

[0001] The present invention relates to a device related to urban planning, and particularly to a device for three-dimensional space analysis of urban planning. Background Art

[0002] Urban planning is to standardize urban development and construction, study the future development of the city, the reasonable layout of the city and the comprehensive arrangement of various urban engineering constructions. It is the overall deployment of the city's development blueprint within a certain period, an important part of urban management, the basis for urban construction and management, and also the premise in the three stages of urban planning, urban construction, and urban operation. When carrying out urban planning and design work, in order for relevant personnel to more clearly and intuitively understand the relevant planning blueprints, three-dimensional holographic projection technology is usually used to project a three-dimensional planning model of relevant planning projects for relevant staff to observe and analyze.

[0003] At present, when the device for three-dimensional space analysis of urban planning is in use, there are still some defects and deficiencies. The specific areas that need to be improved are as follows:

[0004] When the existing device for three-dimensional space analysis of urban planning is carrying out display work, the display height and angle of the three-dimensional projection cannot be adjusted accordingly according to actual needs, and most of the existing devices are large in volume and most of the structures are fixedly arranged, which is not convenient to carry around. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for three-dimensional space analysis of urban planning to solve the problems in the above background art that when the existing device for three-dimensional space analysis of urban planning is carrying out display work, the display height and angle of the three-dimensional projection cannot be adjusted accordingly according to actual needs, and most of the existing devices are large in volume and most of the structures are fixedly arranged, which is not convenient to carry around.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A device for three-dimensional space analysis of urban planning, including an installation box. A storage cavity is opened in the middle of the installation box, and the upper end of the storage cavity is in through communication with the upper surface of the installation box. A fixing mechanism is arranged inside the storage cavity, and installation cavities are opened at both the left and right ends of the bottom surface of the installation box;

[0007] The upper end of the inner side surface of each installation cavity is rotatably connected to the end of a second lead screw through a bearing. The second lead screw is provided with thread grooves with opposite spiral directions at both ends, and the two thread grooves are respectively threadedly connected to two nuts. The upper ends of the two nuts are in contact with the upper end of the installation cavity, and the bottom surfaces of the two nuts are rotatably connected to the upper ends of telescopic connecting rods through hinge seats. The bottom ends of the telescopic connecting rods are rotatably connected to the upper surface of a support plate through hinge seats.

[0008] As a preferred technical solution of the present invention, the front ends of the two lead screws are respectively fixedly connected to the output shafts of the two first motors, and the two first motors are both fixedly connected to the front side surface of the mounting box through mounting seats.

[0009] As a preferred technical solution of the present invention, a groove is provided at the rear side of the upper end of the storage cavity, a through groove is provided at the front end of the upper side of the storage cavity, and both the groove and the through groove are sleeved with a cover plate.

[0010] As a preferred technical solution of the present invention, the fixing mechanism includes a placing plate, a fixing groove is provided on the inner bottom surface of the placing plate, both left and right ends of the fixing groove are rotatably connected to the optical shaft of one end of the lead screw through bearings, and two threaded grooves with opposite spiral directions are provided on the first lead screw and are respectively in threaded connection with two second threaded holes.

[0011] As a preferred technical solution of the present invention, the two second threaded holes are respectively provided in two third sliders, the bottom ends of the two third sliders are sleeved with the fixing groove, the upper ends of the two third sliders are respectively fixedly connected to the bottom surfaces of two clamping plates, the opposite surfaces of the two clamping plates are respectively in lapping connection with the outer side surface of the 3D projector body, and the 3D projector body is placed in the middle of the placing plate.

[0012] As a preferred technical solution of the present invention, an annular sliding rail is fixedly provided on the bottom surface of the placing plate, a second slider is sleeved in the annular sliding rail, the cross sections of the second slider and the annular sliding rail are both T-shaped, the bottom surface of the second slider is rotatably connected to the upper end of the electric push rod through a hinge seat, and the bottom end of the electric push rod is fixedly connected to the upper end of the first slider.

[0013] As a preferred technical solution of the present invention, the bottom end of the first slider is slidably connected to the annular sliding groove, the annular sliding groove is provided on the upper surface of the lifting plate, the rear side surface of the first slider is simultaneously fixedly connected to the front side surfaces of two fixing plates, and the rear ends of the two fixing plates are respectively fixedly connected to the outer side surfaces of the second sleeve and the first connecting rod.

[0014] As a preferred technical solution of the present invention, the bottom end of the second sleeve is rotatably connected to the upper surface of the lifting plate through a bearing, the first connecting rod is sleeved in the second sleeve, the bottom end of the first connecting rod is rotatably connected to the upper surface of the lifting plate through a bearing, the upper end of the first connecting rod is rotatably connected to the bottom end of the second connecting rod through a hinge seat, and the upper end of the second connecting rod is rotatably connected to the bottom surface of the placing plate through a bearing.

[0015] As a preferred technical solution of the present invention, a worm gear is fixedly provided on the outer side surface of the second sleeve, the worm gear is meshed with a worm, one end of the worm is fixedly connected to the output shaft of the second motor, and the second motor is fixedly connected to the upper surface of the lifting plate through a mounting seat.

[0016] As a preferred technical solution of the present invention, the second sleeve is sleeved inside the first sleeve. The bottom end of the first sleeve is fixedly connected to the upper surface of the lifting plate. A conductive slip ring is fixedly arranged on the outer side surface of the first sleeve, and the conductive slip ring is electrically connected to the electric push rod;

[0017] The left and right side surfaces of the lifting plate are respectively fixedly connected to the opposite surfaces of two first connecting plates. The opposite ends of the two first connecting plates are respectively sleeved in two sliding grooves. The two sliding grooves are respectively opened on the left and right side surfaces of the storage cavity. A first threaded hole is opened at the left end of the left first connecting plate, and the first threaded hole is threadedly connected to a screw rod. The end optical axis of the screw rod is rotatably connected to the upper and lower side surfaces of the left sliding groove through bearings.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By arranging a fixing mechanism in the storage cavity in the present invention, when using the device to perform three-dimensional display on a planning model, the clamping plate in the fixing mechanism can be used to fix the three-dimensional projector body in the placement tray, and the inclination angle of the three-dimensional projector body can be adjusted accordingly by using the fixing mechanism, so as to facilitate the user to make corresponding adjustments according to actual needs during the display process, effectively improving the applicability of the device. And when the three-dimensional projector body is not in use, it can be stored and hidden in the storage cavity, thereby reducing the volume of the device and facilitating the user to carry the device. And the storage cavity can be closed by using a cover plate to protect the three-dimensional projector body, so as to avoid damage to the three-dimensional projector body caused by external collision during the carrying and storage of the device, effectively improving the service life of the device.

[0020] 2. By opening an installation cavity at the bottom of the installation box in the present invention, and arranging a second lead screw, a nut and a telescopic connecting rod connected to a support plate in the installation cavity. When the first connecting plate moves to the upper end of the screw rod during the use of the device and the projection height still needs to be adjusted, the user can use the second lead screw, the nut and the telescopic connecting rod to adjust the distance between the support plate and the bottom surface of the installation box, so as to adjust the overall height of the device by changing the position of the support plate, and then facilitate the user to further adjust the height of the three-dimensional projector body according to actual needs, effectively improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view structural schematic diagram of the present invention;

[0022] Figure 2 is a front view sectional structural schematic diagram of the present invention;

[0023] Figure 3 is a structural schematic diagram of the installation box of the present invention;

[0024] Figure 4 Schematic diagram of the telescopic connecting rod structure of the present invention;

[0025] Figure 5 Schematic diagram of the fixing mechanism structure of the present invention;

[0026] Figure 6 Schematic diagram of the second sleeve structure of the present invention;

[0027] Figure 7 Schematic diagram of the bottom view of the placement tray of the present invention;

[0028] Figure 8 Schematic diagram of the top view of the placement tray of the present invention.

[0029] In the figure: 1. Installation box; 2. First motor; 3. Cover plate; 4. Storage cavity; 5. Fixing mechanism; 51. Placement tray; 52. Three-dimensional projector body; 53. Clamping plate; 54. Screw rod; 55. First screw hole; 56. First connecting plate; 57. Lifting plate; 58. Annular sliding groove; 59. Conductive slip ring; 510. First sleeve; 511. First slider; 512. Electric push rod; 513. Annular sliding rail; 514. Second sleeve; 515. Worm gear; 516. Worm; 517. Second motor; 518. Second screw hole; 519. First connecting rod; 520. Second slider; 521. Second connecting rod; 522. Fixed groove; 523. First lead screw; 524. Clamping plate; 525. Third slider; 526. Fixed plate; 6. Installation cavity; 7. Sliding groove; 8. Groove; 9. Through groove; 10. Support plate; 11. Telescopic connecting rod; 12. Second lead screw; 13. Nut. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-8 , the present invention provides a technical solution for a device for three-dimensional space analysis in urban planning: including an installation box 1, a storage cavity 4 is opened in the middle of the installation box 1, the upper end of the storage cavity 4 is in through communication with the upper surface of the installation box 1, a fixing mechanism 5 is arranged inside the storage cavity 4, and installation cavities 6 are opened at both the left and right ends of the bottom surface of the installation box 1;

[0032] The upper end of the inner side surface of each installation cavity 6 is rotationally connected to the end optical axis of the second lead screw 12 through a bearing. The second lead screw 12 is provided with thread grooves with opposite spiral directions at both ends, and the two thread grooves are respectively threadedly connected to two nuts 13. The upper ends of the two nuts 13 are lapped with the upper end of the installation cavity 6. The bottom surfaces of the two nuts 13 are rotationally connected to the upper ends of the telescopic connecting rods 11 through hinge seats. The bottom ends of the telescopic connecting rods 11 are rotationally connected to the upper surface of the support plate 10 through hinge seats. If the projection height still needs to be adjusted when the first connecting plate 56 moves to the upper end of the screw rod 54, at this time, the user can control the first motor 2 to work to drive the second lead screw 12 to rotate forward. When the second lead screw 12 rotates forward, it drives the two nuts 13 to approach each other. When the two nuts 13 approach each other, they drive the telescopic connecting rods 11 to extend, so that the distance between the support plate 10 and the installation box 1 gradually increases, thereby causing the installation box 1 and the fixing mechanism 5 as a whole to rise. When the projection height of the 3D projector body 52 moves to an appropriate height, stop the first motor 2 from working. Thus, the overall height of the device is adjusted by changing the position of the support plate 10, which is convenient for the user to further adjust the height of the 3D projector body 52 according to actual needs, effectively improving the applicability of the device.

[0033] The front ends of the two lead screws 12 are respectively fixedly connected to the output shafts of the two first motors 2. The two first motors 2 are both fixedly connected to the front side surface of the installation box 1 through mounting seats.

[0034] A groove 8 is provided at the rear side of the upper end of the storage cavity 4, and a through groove 9 is provided at the front side of the upper side of the storage cavity 4. The groove 8 and the through groove 9 are both sleeved with the cover plate 3. By providing a through groove 9 and a groove 8 at the upper end of the storage cavity 4 and setting the cover plate 3 to be sleeved with the through groove 9 and the groove 8, when the device is not in use, the cover plate 3 can be inserted into the through groove 9 and the groove 8 to close the storage cavity 4 with the cover plate 3 to protect the 3D projector body 52. Thus, when carrying and storing the device, the 3D projector body 52 is prevented from being damaged by external collisions, effectively improving the service life of the device.

[0035] The fixing mechanism 5 includes a placing plate 51. A fixing groove 522 is provided on the inner bottom surface of the placing plate 51. The left and right ends of the fixing groove 522 are rotationally connected to the end optical axes of the first lead screw 523 through bearings. The first lead screw 523 is provided with two thread grooves with opposite spiral directions, and the two thread grooves are respectively threadedly connected to two second screw holes 518. When using the device, the 3D projector body 52 can be placed in the placing plate 51, and the two clamping plates 53 can be driven by the first lead screw 523 to approach each other to clamp and fix the 3D projector body 52, thereby effectively improving the stability of the 3D projector body 52 and facilitating the user to quickly disassemble, assemble, maintain and repair the 3D projector body 52.

[0036] Two screw holes 518 are respectively opened in two sliders 525. The bottoms of the two sliders 525 are both sleeved with the fixed slots 522. The upper ends of the two sliders 525 are respectively fixedly connected to the bottom surfaces of the two clamping plates 524. The opposite surfaces of the two clamping plates 524 are both lapped with the outer side surface of the 3D projector body 52. The 3D projector body 52 is placed in the middle of the placing plate 51.

[0037] The bottom surface of the placing plate 51 is fixedly provided with an annular slide rail 513. A slider 520 is sleeved in the annular slide rail 513. The cross sections of the slider 520 and the annular slide rail 513 are both T-shaped. The bottom surface of the slider 520 is rotatably connected to the upper end of the electric push rod 512 through a hinge seat. The bottom end of the electric push rod 512 is fixedly connected to the upper end of the slider 511.

[0038] The bottom end of the slider 511 is slidably connected to the annular chute 58. The annular chute 58 is opened on the upper surface of the lifting plate 57. The rear side surface of the slider 511 is simultaneously fixedly connected to the front side surfaces of the two fixing plates 526. The rear ends of the two fixing plates 526 are respectively fixedly connected to the outer side surfaces of the sleeve 514 and the connecting rod 519.

[0039] The bottom end of the sleeve 514 is rotatably connected to the upper surface of the lifting plate 57 through a bearing. The connecting rod 519 is sleeved in the sleeve 514. The bottom end of the connecting rod 519 is rotatably connected to the upper surface of the lifting plate 57 through a bearing. The upper end of the connecting rod 519 is rotatably connected to the bottom end of the connecting rod 521 through a hinge seat. The upper end of the connecting rod 521 is rotatably connected to the bottom surface of the placing plate 51 through a bearing.

[0040] A worm gear 515 is fixedly arranged on the outer side surface of the second sleeve 514. The worm gear 515 is meshed and connected with a worm 516. One end of the worm 516 is fixedly connected with the output shaft of the second motor 517. The second motor 517 is fixedly connected with the upper surface of the lifting plate 57 through a mounting seat. When the projection angle of the three-dimensional projector body 52 needs to be adjusted, the user can control the second motor 517 to work to drive the worm 516 to rotate. When the worm 516 rotates, it drives the second sleeve 514 to rotate through the worm gear 515. When the second sleeve 514 rotates, it drives the first slider 511 and the first connecting rod 519 to rotate through the fixing plate 526. When the fixing plate 526 rotates along the annular sliding groove 58, it drives the second slider 520 to rotate along the annular sliding rail 513 through the electric push rod 512. When the electric push rod 512 rotates to a suitable position, stop the second motor 517 from working. Then the user can control the electric push rod 512 to extend and retract, and use the second slider 520 and the annular sliding rail 513 to pull the placing plate 51 to rotate along the first connecting rod 519. When the placing plate 51 rotates, it drives the three-dimensional projector body 52 to swing to adjust the projection angle of the three-dimensional projector body 52. When the projection angle of the three-dimensional projector body 52 rotates to a suitable angle, stop the electric push rod 512 from extending and retracting, so as to facilitate the user to make corresponding adjustments according to actual needs during the display process and effectively improve the applicability of the device.

[0041] The second sleeve 514 is sleeved inside the first sleeve 510. The bottom end of the first sleeve 510 is fixedly connected with the upper surface of the lifting plate 57. A conductive slip ring 59 is fixedly arranged on the outer side surface of the first sleeve 510. The conductive slip ring 59 is electrically connected with the electric push rod 512. By arranging the conductive slip ring 59 on the first sleeve 510, the conductive slip ring 59 is used to supply power to the electric push rod 512, so as to avoid the power cord of the electric push rod 512 from being wound when the first slider 511 drives the electric push rod 512 to rotate along the annular sliding groove 58.

[0042] The left and right side surfaces of the lifting plate 57 are respectively fixedly connected with the opposite surfaces of two first connecting plates 56. The opposite ends of the two first connecting plates 56 are respectively sleeved with two sliding grooves 7. The two sliding grooves 7 are respectively opened on the left and right side surfaces of the storage cavity 4. A first screw hole 55 is opened at the left end of the left first connecting plate 56. The first screw hole 55 is in threaded connection with a screw rod 54. The end optical axis of the screw rod 54 is rotationally connected with the upper and lower side surfaces of the left sliding groove 7 through bearings. When the device is not in use, the user can control the electric push rod 512 to extend and retract so that the placing plate 51 rotates to a horizontal state. Then control the output shaft of the first motor 2 to reverse, so that the telescopic connecting rod 11 contracts to drive the support plate 10 to fit with the bottom surface of the installation box 1, and reversely rotate the screw rod 54 to make the first connecting plate 56 and the lifting plate 57 descend. When the first connecting plate 56 moves to the bottom end of the screw rod 54, stop rotating the screw rod 54. Then insert the cover plate 3 into the through groove 9 and the groove 8 to close the storage cavity 4, so as to effectively reduce the volume of the device and facilitate the user to carry the device.

[0043] The operation steps of the present invention are as follows:

[0044] When using this device for three-dimensional display of the planning model, the user can place the device at a suitable location, then pull the cover plate 3 forward so that the cover plate 3 disengages from the through groove 9 and the groove 8. Then the user can rotate the screw rod 54 to drive the lifting plate 57, the placing plate 51 and the three-dimensional projector body 52 to move upward by means of the first screw hole 55 and the first connecting plate 56. When the three-dimensional projector body 52 moves to a suitable position outside the storage cavity 4, stop rotating the screw rod 54. If it is necessary to adjust the projection angle of the three-dimensional projector body 52, the user can control the operation of the second motor 517 to drive the worm 516 to rotate. When the worm 516 rotates, it drives the second sleeve 514 to rotate through the worm gear 515. When the second sleeve 514 rotates, it drives the first slider 511 and the first connecting rod 519 to rotate through the fixing plate 526. When the fixing plate 526 rotates along the annular sliding groove 58, it drives the second slider 520 to rotate along the annular sliding rail 513 through the electric push rod 512;

[0045] When the electric push rod 512 rotates to a suitable position, stop the operation of the second motor 517. Then the user can control the telescopic movement of the electric push rod 512 to drive the placing plate 51 to rotate along the first connecting rod 519 by means of the second slider 520 and the annular sliding rail 513. When the placing plate 51 rotates, it drives the three-dimensional projector body 52 to swing to adjust the projection angle of the three-dimensional projector body 52. When the projection angle of the three-dimensional projector body 52 rotates to a suitable angle, stop the telescopic movement of the electric push rod 512;

[0046] If it is still necessary to adjust the projection height when the first connecting plate 56 moves to the upper end of the screw rod 54, at this time the user can control the operation of the first motor 2 to drive the second lead screw 12 to rotate forward. When the second lead screw 12 rotates forward, it drives the two nuts 13 to approach each other. When the two nuts 13 approach each other, they drive the telescopic connecting rod 11 to extend, so that the distance between the support plate 10 and the installation box 1 gradually increases, thereby causing the installation box 1 and the fixing mechanism 5 as a whole to rise. When the projection height of the three-dimensional projector body 52 moves to a suitable height, stop the operation of the first motor 2;

[0047] When this device is not in use, the user can control the telescopic movement of the electric push rod 512 to make the placing plate 51 rotate to a horizontal state, then control the output shaft of the first motor 2 to rotate in the reverse direction to make the telescopic connecting rod 11 contract, drive the support plate 10 to fit with the bottom surface of the installation box 1, and rotate the screw rod 54 in the reverse direction to make the first connecting plate 56 and the lifting plate 57 descend. When the first connecting plate 56 moves to the bottom end of the screw rod 54, stop rotating the screw rod 54, and then insert the cover plate 3 into the through groove 9 and the groove 8 to close the storage cavity 4.

[0048] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, for example, it may be fixedly connected, may also be detachably connected, or integrated; it may be mechanically connected, may also be electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for three-dimensional spatial analysis of urban planning, comprising a mounting box (1), characterized in that: A storage cavity (4) is provided in the middle of the installation box (1), the upper end of the storage cavity (4) is connected to the upper surface of the installation box (1), a fixing mechanism (5) is provided inside the storage cavity (4), and installation cavities (6) are provided at both left and right ends of the bottom surface of the installation box (1); The upper end of the inner side surface of each of the mounting cavities (6) is rotatably connected to the end optical axis of the second lead screw (12) via a bearing; the second lead screw (12) is provided with thread grooves with opposite spiral directions at both ends, and the two sections of the thread grooves are respectively threadedly connected to two nuts (13); the upper ends of the two nuts (13) are overlapped with the upper end of the mounting cavity (6); the bottom surfaces of the two nuts (13) are rotatably connected to the upper end of the telescopic connecting rod (11) via an articulated seat; and the bottom ends of the telescopic connecting rods (11) are rotatably connected to the upper surface of the support plate (10) via an articulated seat.

2. The device for three-dimensional spatial analysis of urban planning according to claim 1, characterized in that: The front ends of the two lead screws (12) are respectively fixedly connected to the output shafts of the two motors (2), and the two motors (2) are fixedly connected to the front side of the installation box (1) through a mounting seat.

3. The device for three-dimensional spatial analysis of urban planning according to claim 1, characterized in that: A groove (8) is provided at the rear side of the upper end of the storage cavity (4), and a through groove (9) is provided at the front end of the upper side of the storage cavity (4). Both the groove (8) and the through groove (9) are sleeved with the cover plate (3).

4. The device for three-dimensional spatial analysis of urban planning according to claim 1, characterized in that: The fixing mechanism (5) comprises a placement plate (51), the inner bottom surface of the placement plate (51) is provided with a fixing groove (522), the left and right ends of the fixing groove (522) are rotatably connected to the optical axis of the end of the lead screw 1 (523) through bearings, and the lead screw 1 (523) is provided with two sections of threaded grooves with opposite spiral directions, and the two sections of the threaded grooves are respectively threadedly connected to the two second screw holes (518).

5. The device for three-dimensional spatial analysis of urban planning according to claim 4, characterized in that: The two second screw holes (518) are respectively provided in the two third sliders (525); the bottom ends of the two third sliders (525) are sleeved with the fixing grooves (522); the upper ends of the two third sliders (525) are respectively fixedly connected with the bottom surfaces of the two clamping plates (524); the opposite surfaces of the two clamping plates (524) are overlapped with the outer side surfaces of the three-dimensional projector body (52); and the three-dimensional projector body (52) is placed in the middle of the placement plate (51).

6. The device for three-dimensional spatial analysis of urban planning according to claim 5, characterized in that: The bottom surface of the placement plate (51) is fixedly provided with an annular slide rail (513), and a second slider (520) is sleeved inside the annular slide rail (513). The cross-sections of the second slider (520) and the annular slide rail (513) are both T-shaped. The bottom surface of the second slider (520) is rotatably connected to the upper end of the electric push rod (512) through a hinge seat, and the bottom end of the electric push rod (512) is fixedly connected to the upper end of the first slider (511).

7. The device for three-dimensional spatial analysis of urban planning according to claim 6, characterized in that: The bottom end of the slider 1 (511) is slidably connected to the annular groove (58), and the annular groove (58) is opened on the upper surface of the lifting plate (57). The rear side surface of the slider 1 (511) is fixedly connected to the front side surfaces of the two fixed plates (526) at the same time, and the rear ends of the two fixed plates (526) are fixedly connected to the outer side surfaces of the sleeve 2 (514) and the connecting rod 1 (519) respectively.

8. The device for three-dimensional spatial analysis of urban planning according to claim 7, characterized in that: The bottom end of the second sleeve (514) is rotatably connected to the upper surface of the lifting plate (57) via a bearing; the first connecting rod (519) is sleeved in the second sleeve (514); the bottom end of the first connecting rod (519) is rotatably connected to the upper surface of the lifting plate (57) via a bearing; the top end of the first connecting rod (519) is rotatably connected to the bottom end of the second connecting rod (521) via a hinge seat; the top end of the second connecting rod (521) is rotatably connected to the bottom surface of the placement plate (51) via a bearing.

9. The device for three-dimensional spatial analysis of urban planning according to claim 8, characterized in that: A worm wheel (515) is fixedly arranged on the outer side surface of the second sleeve (514), and the worm wheel (515) is meshingly connected with a worm (516), one end of the worm (516) is fixedly connected to the output shaft of the second motor (517), and the second motor (517) is fixedly connected to the upper surface of the lifting plate (57) through a mounting seat.

10. The device for three-dimensional spatial analysis of urban planning according to claim 9, characterized in that: The second sleeve (514) is sleeved in the first sleeve (510), the bottom end of the first sleeve (510) is fixedly connected to the upper surface of the lifting plate (57), and the outer side surface of the first sleeve (510) is fixedly provided with a conductive slip ring (59), and the conductive slip ring (59) is electrically connected to the electric push rod (512); The left and right side surfaces of the lifting plate (57) are respectively fixedly connected to the opposite surfaces of the two connecting plates (56); the opposite ends of the two connecting plates (56) are respectively sleeved with the two slide grooves (7); the two slide grooves (7) are respectively opened on the left and right side surfaces of the storage cavity (4); the left end of the left connecting plate (56) is provided with a screw hole (55); the screw hole (55) is threadedly connected to the screw rod (54); the end optical axis of the screw rod (54) is rotatably connected to the upper and lower side surfaces of the left slide groove (7) through a bearing.

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