CN113475916A

CN113475916A - Land planning is with multi-functional discussion display device

Info

Publication number: CN113475916A
Application number: CN202110952485.4A
Authority: CN
Inventors: 陈彦伦; 马列; 朱婷婷; 王天奇
Original assignee: Zhejiang Xingnong Land Survey Planning And Design Co ltd
Current assignee: Zhejiang Xingnong Land Survey Planning And Design Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-10-08
Anticipated expiration: 2041-08-19
Also published as: CN113475916B

Abstract

The invention relates to the technical field of land planning and discussing tools, in particular to a multifunctional discussing and displaying device for land planning, which comprises a main frame, wherein supporting legs are welded at four corners of the bottom surface of the main frame, an adjusting mechanism is installed inside the supporting legs, a grid movable groove is formed inside the main frame, locking pieces are uniformly welded on the top surface of the main frame, circular holes are formed in the surfaces of the locking pieces in a penetrating manner, a drawing fixing mechanism is installed on the surface of the main frame, a sliding piece is connected inside the grid movable groove in a sliding manner, an arc-shaped groove is formed in the bottom end of the sliding piece, balls are arranged in the arc-shaped groove formed in the bottom end of the sliding piece, and the surfaces of the balls are abutted against the inner wall of the grid movable groove. Through the combination of the two, a more convenient interactive discussion mode can be brought to the discussion staff.

Description

Land planning is with multi-functional discussion display device

Technical Field

The invention relates to the technical field of land planning discussing tools, in particular to a multifunctional discussing and displaying device for land planning.

Background

Land planning refers to the long-term arrangement of reasonable use of land in a country or a certain region according to the prospect and the requirement of economic development. Aims to ensure that the land utilization can meet the requirements of proportional development of all departments of national economy. The planning is based on the distribution and configuration conditions of the existing natural resources, technical resources and human resources, so that the land is fully and effectively utilized, and the waste caused by artificial reasons is avoided. The land utilization overall plan is an overall arrangement and layout of land development, utilization, treatment and protection in space and time according to the requirements of national social and economic sustainable development and natural, economic and social conditions in a certain area.

However, in the current land planning and discussing process, no equipment with perfect functionality is available for people to discuss, study and discuss through watching drawings, and then carry out on-site investigation.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides a multifunctional research and display device for land planning, which solves the problems that no better device is provided for land planning and research at present, people mostly adopt a mode of combining subsequent actual research and study by viewing drawings, the method is time-consuming and labor-consuming, the efficiency is low, and mutual understanding possibly has deviation so as to influence the final best discussion result.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

a multifunctional study and display device for land planning comprises a main frame, wherein supporting legs are welded at four corners of the bottom surface of the main frame, an adjusting mechanism is installed inside each supporting leg, a grid movable groove is formed inside the main frame, a locking piece is uniformly welded on the top surface of the main frame, a round hole is formed in the surface of the locking piece in a penetrating mode, a drawing fixing mechanism is installed on the surface of the main frame, a sliding piece is connected inside the grid movable groove in a sliding mode, an arc-shaped groove is formed in the bottom end of the sliding piece, a ball is arranged in the arc-shaped groove formed in the bottom end of the sliding piece, the surface of the ball abuts against the inner wall of the grid movable groove, arc-shaped limiting pieces are symmetrically inserted in the sliding piece, an inserting rod is inserted on one side of the arc-shaped limiting pieces close to each other, a knot spring is sleeved on the surface of the inserting rod, and two ends of the knot spring abut against the arc-shaped limiting pieces, the top of slider is connected with the building model through the bearing, the surface of main frame is inserted through the bearing and is equipped with the bull stick, the surface of bull stick is equipped with the locking plate through the thread bush, the inboard and slide, the conflict spring surface of locking plate are pasted mutually.

Further, adjustment mechanism is including promoting the piece, the bottom of landing leg is inserted and is equipped with the promotion piece, the inside equidistance welding of promotion piece has tooth, the inside of landing leg is connected with drive gear through the bearing, drive gear meshes with promotion piece inner weld's tooth mutually, one side that drive gear is close to each other all welds with the transfer line mutually, first drive wheel has been cup jointed on the surface of transfer line, one side that the landing leg is close to each other all welds with the mounting panel, the internally mounted of mounting panel has the motor, the output end fixedly connected with second drive wheel of motor, the one end that the motor was kept away from to the second drive wheel is passed through the bearing and is connected the inner wall at the mounting panel, first drive wheel is equipped with driving belt with the surface cover of second drive wheel.

Further, the surface of main frame articulates there is the storehouse of placing, it is equipped with torque spring to place the cover on storehouse and the articulated shaft of main frame looks articulated, torque spring's both ends respectively with the main frame, place the storehouse and be connected, the inside of placing the storehouse has seted up the spout, it has the moving part through the inside spout sliding connection who sets up to place the storehouse, the one end of moving part is circularly, the moving part is the circular shape pot head and is equipped with the division board, division board sliding connection is on the surface of moving part, the inside equidistance of placing the storehouse is seted up flutedly, one side of division board is inserted and is established in the recess of placing the inside the seting up in storehouse.

Furthermore, the surface of the main frame is fixedly connected with a magnetic block, and the surface of the placing bin is provided with a groove matched with the magnetic block.

Furthermore, drawing fixed establishment includes the guide rail, the bottom surface symmetrical welding of main frame has the guide rail, the spout has all been seted up to one side that the guide rail is close to each other, the spout sliding connection that the guide rail was seted up through being close to one side each other has the slide, one side of slide is connected with the diversion board through the pivot, the top surface of diversion board is connected with the fixed plate through the bearing, the surface of fixed plate is inserted and is equipped with fixed member, the surface of fixed member is inserted through the screw thread symmetry and is equipped with the swing arm, the surface of establishing at the fixed plate is inserted through the screw thread to the one end of swing arm, the internally mounted of fixed plate has tectorial membrane mechanism.

Furthermore, the tectorial membrane mechanism includes the axostylus axostyle, the inside of fixed member articulates there is the axostylus axostyle, the cover is equipped with torque spring on the articulated shaft that axostylus axostyle and axostylus axostyle link to each other, torque spring's both ends are connected with fixed member, axostylus axostyle respectively, the fixed surface fixedly connected with transparent PVC membrane of axostylus axostyle, the spout has been seted up to the temple symmetry of fixed plate, the fixed plate has the wiping pole through the inside spout sliding connection who sets up, the wiping pole is close to one side each other and is inserted and be equipped with the wiping piece, the outside that fixed member extends to fixed member is passed to the one end of transparent PVC membrane is connected with the wiping piece, the symmetrical welding in surface of wiping piece has conflict spring, the one end welding that the wiping piece was kept away from to the conflict spring is at the inner wall of wiping pole.

Furthermore, the opening part of the surface of the fixed rod piece for the transparent PVC film to stretch out is symmetrically connected with rollers through a rotating shaft, and the surfaces of the rollers are attached to the surface of the transparent PVC film.

Furthermore, the surface of the main frame is fixedly connected with a universal ball seat, one end, far away from the surface of the main frame, of the universal ball seat is inserted with a universal ball rod, one end of the universal ball rod is fixedly connected with a plastic corrugated pipe, and one end, far away from the universal ball rod, of the plastic corrugated pipe is provided with a projector.

Furthermore, plug-in components are inserted at the top end of the turning plate, return springs are welded at the bottom ends of the plug-in components, and the bottom ends of the return springs are welded on the inner wall of the turning plate.

Furthermore, the bearing used for connecting the sliding part with the building model is a damping bearing, and the bearing used for connecting the direction changing plate with the fixed plate is a damping bearing.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

1. the invention provides a display device which can simulate a field and is combined with a drawing for a workshop through the structure, and can bring a more convenient interactive workshop mode for the workshop through the combination of the display device and the drawing.

2. The device possesses certain regulatory function, and it is mainly used for being matched with user's height, or when the device mainly used show the drawing, the user also can make the drawing rise through height control's mode to be favorable to many people to watch more.

3. The device still possesses certain safeguard effect to the drawing of fixing on it, prevents that it from being stained with ash and being stained with water to can prevent on this basis that the drawing from appearing because of the inconvenient condition of reading of corner warpage, have brought better use experience for the user.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic perspective view of a multi-functional research and demonstration apparatus for land planning;

FIG. 2 is a schematic bottom perspective view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2A of the present invention;

FIG. 4 is a schematic structural distribution diagram of the height adjustment assembly of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B in accordance with the present invention;

FIG. 6 is an isolated sectional view of the film covering mechanism of the present invention;

FIG. 7 is a schematic view showing an independent structure of the parts storage container according to the present invention;

FIG. 8 is a schematic cross-sectional view of a building model with parts connected according to the present invention;

the reference numerals in the drawings denote: 1. a main frame; 2. a support leg; 3. a lifting member; 4. a transmission gear; 5. a transmission rod; 6. a first drive pulley; 7. mounting a plate; 8. a motor; 9. a second transmission wheel; 10. a drive belt; 11. a magnetic block; 12. placing a bin; 13. a movable member; 14. a partition plate; 15. a grid active slot; 16. a locking member; 17. a universal ball seat; 18. a universal ball arm; 19. molding a corrugated pipe; 20. a projector; 21. a guide rail; 22. a slide plate; 23. a direction-changing plate; 24. a plug-in; 25. a return spring; 26. a fixing plate; 27. fixing the rod piece; 28. rotating the rod; 29. a shaft lever; 30. a transparent PVC film; 31. a wiper bar; 32. a wiper member; 33. against the spring; 34. a slider; 35. a ball bearing; 36. an arcuate stop; 37. inserting a rod; 38. a tie spring; 39. a building model; 40. a rotating rod; 41. the plate member is locked.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example 1

The multifunctional research and display equipment for land planning of the embodiment, as shown in fig. 1 and 8, comprises a main frame 1, supporting legs 2 are welded at four corners of the bottom surface of the main frame 1, an adjusting mechanism is installed inside the supporting legs 2, a grid movable groove 15 is formed inside the main frame 1, locking pieces 16 are evenly welded on the top surface of the main frame 1, circular holes are formed in the surfaces of the locking pieces 16 in a penetrating manner, a drawing fixing mechanism is installed on the surface of the main frame 1, a sliding piece 34 is slidably connected inside the grid movable groove 15, a circular arc-shaped groove is formed in the bottom end of the sliding piece 34, balls 35 are arranged in the circular arc-shaped groove formed in the bottom end of the sliding piece 34, the surfaces of the balls 35 abut against the inner wall of the grid movable groove 15, arc-shaped limiting pieces 36 are symmetrically inserted inside the sliding piece 34, an inserting rod 37 is inserted at one side of the arc-shaped limiting pieces 36, and a drawknot spring 38 is sleeved on the surface of the inserting rod 37, the two ends of the tie spring 38 are abutted against the arch-shaped limiting part 36, the top end of the sliding part 34 is connected with a building model 39 through a bearing, a rotating rod 40 is inserted into the surface of the main frame 1 through the bearing, a locking plate 41 is sleeved on the surface of the rotating rod 40 through threads, and the inner side of the locking plate 41 is abutted against the surfaces of the sliding plate 22 and the abutting spring 33.

When the system is used in the embodiment, a user can install a certain number of building models 39 in the grid movable grooves 15 formed in the surface of the main frame 1 according to actual use requirements, and then move the building models 39 according to data obtained by time observation;

when moving, a user needs to press the end of the arc-shaped limiting piece 36 arranged outside the sliding piece 34, so that the arc-shaped limiting piece 36 is forced to extend into the sliding piece 34, the arc-shaped limiting piece 36 slides on the surface of the inserted link 37, meanwhile, the compression and pulling spring 38 is gathered to deform in the moving process, so that two ends of the arc-shaped limiting piece 36 embedded in the locking piece 16 are separated from the locking piece 16, then the user pushes the building model 39 by taking the distance of each grid in the grid movable groove 15 as a unit, the building model 39 can move on the surface of the main frame 1, finally, when the building model 39 moves to a position required by the user, the user releases the hand for pressing the arc-shaped limiting piece 36, the arc-shaped limiting piece 36 is embedded into the locking piece 16 again, and the building model 39 is locked again;

by this operation, the user can restore the results obtained in the land planning and research or the results of the field investigation, and can help to memorize or display the results of the research for record.

Example 2

As shown in fig. 4, adjustment mechanism includes hoisting member 3, hoisting member 3 is inserted to the bottom of landing leg 2, the inside equidistance welding of hoisting member 3 has tooth, the inside of landing leg 2 is connected with drive gear 4 through the bearing, drive gear 4 meshes with 3 inside weld's of hoisting member tooth mutually, drive gear 4 is close to one side each other all welds with transfer line 5, first drive wheel 6 has been cup jointed on the surface of transfer line 5, the one side that landing leg 2 is close to each other all welds with mounting panel 7, the internally mounted of mounting panel 7 has motor 8, the output end fixedly connected with second drive wheel 9 of motor 8, the inner wall at mounting panel 7 is passed through the bearing connection to the one end that motor 8 was kept away from to second drive wheel 9, the surface cover of first drive wheel 6 and second drive wheel 9 is equipped with driving belt 10.

When a user needs to adjust the overall height of the device, the user can start the motor 8, the output end of the motor 8 drives the second transmission wheel 9 to rotate, so that the transmission belt 10 on the surface of the second transmission wheel 9 is driven to operate, the first transmission wheel 6 rotates under the operation of the transmission belt 10, the transmission rod 5 rotates along with the first transmission wheel 6 to drive the transmission gear 4 connected with the transmission rod to rotate, and the transmission gear 4 extends out of the inside of the supporting leg 2 through the tooth transmission lifting piece 3 on the surface of the lifting piece 3 in the supporting leg 2 in the rotating process, so that the operation of height adjustment is completed;

through the setting of this structure, the device's height can be adjusted to reach the purpose of convenient user operation or after fixed drawing, make the more comfortable drawing of watching of discussing personnel through the mode that promotes height.

As shown in fig. 1, main frame 1's surface articulates there is the storehouse 12 of placing, it is equipped with torque spring to place the cover on storehouse 12 and the articulated shaft of main frame 1 looks articulated, torque spring's both ends respectively with main frame 1, place storehouse 12 and be connected, the inside of placing storehouse 12 has seted up the spout, it has moving part 13 through the inside spout sliding connection who offers to place storehouse 12, the one end of moving part 13 is circularly, moving part 13 is circular shape pot head and is equipped with division board 14, division board 14 sliding connection is on the surface of moving part 13, the inside equidistance of placing storehouse 12 has seted up flutedly, one side of division board 14 is inserted and is established in placing the inside recess of seting up of storehouse 12.

The structure mainly has the functions of placing objects, placing some articles needed in the discussion process in the structure, and placing a plurality of groups of shaft rods 29;

when the storage box is used, a user can pull the partition plate 14 to enable the partition plate 14 to be separated from the groove formed in the storage box 12, then the partition plate 14 is pushed to move to a specified position and then is embedded into the groove formed in the specified position again, the structure is used for separating the internal space of the storage box 12, and the user can simply sort and place articles through separation when placing the articles, so that the user can take and use the articles subsequently.

As shown in fig. 1, the surface of the main frame 1 is fixedly connected with a magnetic block 11, and the surface of the storage bin 12 is provided with a groove adapted to the magnetic block 11.

The structure assists the torsion spring sleeved on the hinged shaft of the placing bin 12 and the main frame 1 to use, and through the arrangement, when the placing bin 12 is attached to the surface of the main frame 1 to be closed, the magnetic force of the magnetic block 11 adsorbs the placing bin 12 to share a part of acting force for the torsion spring, so that the placing bin 12 cannot be opened easily due to shaking, and the part of the structure is more durable.

Example 3

As shown in fig. 1 and 2, the drawing fixing mechanism includes a guide rail 21, the bottom surface of the main frame 1 is symmetrically welded with the guide rail 21, one side of the guide rail 21 close to each other is provided with a sliding groove, the guide rail 21 is connected with a sliding plate 22 through the sliding groove formed in one side close to each other, one side of the sliding plate 22 is connected with a turning plate 23 through a rotating shaft, the top surface of the turning plate 23 is connected with a fixing plate 26 through a bearing, a fixing rod piece 27 is inserted on the surface of the fixing plate 26, a rotating rod 28 is inserted on the surface of the fixing rod piece 27 through thread symmetry, one end of the rotating rod 28 is inserted on the surface of the fixing plate 26 through threads, and a film coating mechanism is installed inside the fixing plate 26.

In practical use, a user can rotate the rotating rod 40, the rotating rod 40 drives the locking plate 41 to be separated from the surface of the change plate 23 through the screw thread effect, then the whole body connected with the fixed plate 26 and the change plate 23 is pulled out from the bottom surface of the main frame 1 along the guide rail 21, the change plate 23 is pulled to rotate along the connection part with the sliding plate 22 until the change plate 23 is attached to the surface of the main frame 1, the user rotates the rotating rod 40 again to enable the locking plate 41 to be attached to and abutted to the surface of the change plate 23, and the part of structure is fixed again;

the user can rotate the swing arm 28 this moment, and the swing arm 28 stretches out from fixed plate 26 surface through the screw thread effect, and fixed rod piece 27 can be at the arbitrary lateral shifting in swing arm 28 surface this moment, and fixed rod piece 27 is kept away from fixed plate 26 surface to the pulling, and the user places the picture in the gap again, and swing arm 28 once more can form the centre gripping to the drawing through fixed rod piece 27 cooperation fixed plate 26 to supply the user to watch the drawing.

As shown in fig. 1 and 6, the tectorial membrane mechanism includes axostylus axostyle 29, the inside of fixed rod piece 27 articulates there is axostylus axostyle 29, the cover is equipped with torsion spring on the articulated shaft that axostylus axostyle 29 and axostylus axostyle 29 link to each other, torsion spring's both ends respectively with fixed rod piece 27, axostylus axostyle 29 is connected, the spout has been seted up to the temporalis symmetry of fixed plate 26, fixed plate 26 has wiping rod 31 through the inside spout sliding connection who offers, wiping rod 31 is close to one side each other and is inserted and is equipped with wiping piece 32, the outside that fixed rod piece 27 extends to fixed rod piece 27 is passed to transparent PVC membrane 30's one end is connected with wiping piece 32, wiping piece 32's surface symmetry welding has conflict spring 33, conflict spring 33 keeps away from wiping piece 32's one end welding at wiping rod 31's inner wall.

After the drawing is fixed, the user can push the wiping rod 31 at the moment, the wiping piece 32 inserted on the surface of the wiping rod 31 is in contact with the surface of the drawing, the wiping piece slides downwards on the surface of the drawing, and the movement of the wiping rod 31 can drive the transparent PVC film 30 to stretch out from the inside of the fixing rod 27, so that the surface of the drawing is covered to protect the drawing.

As shown in fig. 6, the opening of the surface of the fixing rod 27 for the transparent PVC film 30 to extend out is symmetrically connected with rollers through a rotating shaft, and the surfaces of the rollers are attached to the surface of the transparent PVC film 30.

This structure prevents the surface of the transparent PVC film 30 from being abraded by the movement of the transparent PVC film 30 extending out and into the fixing rod 27 in such a manner that the roller is rotated by means of the frictional force, and makes the transparent PVC film 30 extend out from the fixing rod 27 more smoothly due to the reduction of the frictional force.

Example 4

As shown in fig. 1, a universal ball seat 17 is fixedly connected to the surface of the main frame 1, a universal ball rod 18 is inserted into one end of the universal ball seat 17 away from the surface of the main frame 1, a plastic corrugated pipe 19 is fixedly connected to one end of the universal ball rod 18, and a projector 20 is installed at one end of the plastic corrugated pipe 19 away from the universal ball rod 18.

This part structure is when using, and the user can pull universal club 18 or mould type bellows 19 and carry out the regulation of arbitrary angle to projecting apparatus 20, and when projecting apparatus 20 started, the lens end of projecting apparatus 20 will present the projection, simulation ground or vegetation to can bring more audio-visual experience for the user when the user uses the device and under the circumstances that cooperation projecting apparatus 20 used, reach the better purpose of developing the discussion of supplementary user with this.

As shown in fig. 5, an insert 24 is inserted into the top end of the direction-changing plate 23, a return spring 25 is welded to the bottom end of the insert 24, and the bottom end of the return spring 25 is welded to the inner wall of the direction-changing plate 23.

The user only pushes the plug-in 24 to make the plug-in 24 move in the inner slot of the direction changing plate 23, the return spring 25 is compressed and deformed due to the movement of the plug-in 24 until the top end of the plug-in 24 is separated from the fixing plate 26, at the moment, the user can rotate the fixing plate 26 at will, and the fixing plate 26 can change the display direction, so that the watching of peripheral research workers is facilitated, and certain convenience is brought.

As shown in fig. 4 and 6, the bearings used for connecting the slider 34 to the building model 39 are damper bearings, and the bearings used for connecting the direction-changing plate 23 to the fixed plate 26 are damper bearings.

The structure ensures that the fixed plate 26 or the building model 39 can not be easily changed in direction due to the action of external uncertain factors after being rotated, thereby providing more convenience for users during use and ensuring that the device can be better used.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A land planning is with multi-functional study show equipment, includes main frame (1), its characterized in that: the supporting legs (2) are welded at four corners of the bottom of the main frame (1), an adjusting mechanism is installed inside the supporting legs (2), a grid movable groove (15) is formed in the main frame (1), locking pieces (16) are evenly welded on the top of the main frame (1), round holes are formed in the surface of each locking piece (16) in a penetrating mode, a drawing fixing mechanism is installed on the surface of the main frame (1), a sliding piece (34) is connected to the inside of the grid movable groove (15) in a sliding mode, a circular arc-shaped groove is formed in the bottom end of the sliding piece (34), balls (35) are arranged in the circular arc-shaped groove formed in the bottom end of the sliding piece (34), the surface of each ball (35) is abutted to the inner wall of the grid movable groove (15), arc-shaped limiting pieces (36) are symmetrically inserted into the inside of the sliding piece (34), and inserting rods (37) are inserted into the arc-shaped limiting pieces (36) close to one side, the surface cover of inserted bar (37) is equipped with drawknot spring (38), the both ends of drawknot spring (38) all offset with bow-shaped locating part (36), the top of slider (34) is connected with building model (39) through the bearing, the surface of main frame (1) is inserted through the bearing and is equipped with bull stick (40), the surface of bull stick (40) is equipped with locking plate (41) through the thread bush, the inboard and slide (22), conflict spring (33) surface of locking plate (41) are pasted mutually.

2. A multifunctional research and display device for land planning according to claim 1, wherein the adjusting mechanism comprises a lifting member (3), the lifting member (3) is inserted into the bottom end of the supporting leg (2), teeth are welded on the lifting member (3) at equal intervals inside the supporting leg (2), a transmission gear (4) is connected inside the supporting leg (2) through a bearing, the transmission gear (4) is meshed with the teeth welded inside the lifting member (3), one side of the transmission gear (4) close to each other is welded with a transmission rod (5), a first transmission wheel (6) is sleeved on the surface of the transmission rod (5), one side of the supporting leg (2) close to each other is welded with a mounting plate (7), a motor (8) is installed inside the mounting plate (7), and a second transmission wheel (9) is fixedly connected to the output end of the motor (8), one end, far away from the motor (8), of the second transmission wheel (9) is connected to the inner wall of the mounting plate (7) through a bearing, and a transmission belt (10) is sleeved on the surfaces of the first transmission wheel (6) and the second transmission wheel (9).

3. A multi-purpose seminar display apparatus for land planning according to claim 1, the surface of the main frame (1) is hinged with a placing bin (12), a hinge shaft for hinging the placing bin (12) and the main frame (1) is sleeved with a torsion spring, two ends of the torsion spring are respectively connected with the main frame (1) and the placing bin (12), a sliding groove is arranged inside the placing bin (12), the placing bin (12) is connected with a moving part (13) in a sliding way through the sliding groove arranged inside, one end of the moving piece (13) is circular, one end of the moving piece (13) which is circular is sleeved with a partition plate (14), the partition plate (14) is connected on the surface of the movable piece (13) in a sliding way, grooves are arranged in the placing bin (12) at equal intervals, one side of the partition plate (14) is inserted into a groove formed in the placing bin (12).

4. The multifunctional research and display equipment for land planning as claimed in claim 3, wherein the surface of the main frame (1) is fixedly connected with a magnetic block (11), and the surface of the placing bin (12) is provided with a groove matched with the magnetic block (11).

5. A multi-purpose seminar display apparatus for land planning according to claim 1, the drawing fixing mechanism comprises guide rails (21), the guide rails (21) are symmetrically welded on the bottom surface of the main frame (1), the guide rails (21) are provided with sliding grooves at the sides close to each other, the guide rails (21) are connected with sliding plates (22) in a sliding way through the sliding grooves at the sides close to each other, one side of the sliding plate (22) is connected with a direction changing plate (23) through a rotating shaft, the top surface of the direction changing plate (23) is connected with a fixing plate (26) through a bearing, a fixed rod piece (27) is inserted in the surface of the fixed plate (26), rotary rods (28) are symmetrically inserted in the surface of the fixed rod piece (27) through threads, one end of the rotating rod (28) is inserted into the surface of the fixing plate (26) through threads, and a film coating mechanism is installed inside the fixing plate (26).

6. The multifunctional research and display equipment for land planning according to claim 5, wherein the film covering mechanism comprises a shaft rod (29), the inside of the fixed rod (27) is hinged with the shaft rod (29), a torsion spring is sleeved on a hinged shaft of the shaft rod (29) connected with the shaft rod (29), two ends of the torsion spring are respectively connected with the fixed rod (27) and the shaft rod (29), the surface of the shaft rod (29) is fixedly connected with a transparent PVC film (30), the temporal part of the fixed plate (26) is symmetrically provided with sliding grooves, the fixed plate (26) is slidably connected with a scraping rod (31) through the sliding grooves arranged inside, the scraping rods (31) are inserted with scraping pieces (32) at the sides close to each other, one end of the transparent PVC film (30) extends to the outside of the fixed rod (27) through the fixed rod (27) to be connected with the scraping pieces (32), an abutting spring (33) is symmetrically welded on the surface of the wiping piece (32), and one end, away from the wiping piece (32), of the abutting spring (33) is welded on the inner wall of the wiping rod (31).

7. The multifunctional research and display equipment for land planning as claimed in claim 6, wherein the opening of the surface of the fixing rod (27) for the transparent PVC film (30) to extend out is symmetrically connected with rollers through a rotating shaft, and the surfaces of the rollers are adhered to the surface of the transparent PVC film (30).

8. The multifunctional research and display equipment for land planning according to claim 5, wherein a universal ball seat (17) is fixedly connected to the surface of the main frame (1), a universal ball rod (18) is inserted into one end of the universal ball seat (17) far away from the surface of the main frame (1), a plastic corrugated pipe (19) is fixedly connected to one end of the universal ball rod (18), and a projector (20) is installed at one end of the plastic corrugated pipe (19) far away from the universal ball rod (18).

9. A multifunctional research and display equipment for land planning according to claim 5, characterized in that an insert (24) is inserted at the top end of the direction-changing plate (23), a return spring (25) is welded at the bottom end of the insert (24), and the bottom end of the return spring (25) is welded at the inner wall of the direction-changing plate (23).

10. A multi-functional seminar display device for land planning according to claim 5, wherein the bearing used for connecting the sliding member (34) with the building model (39) is a damping bearing, and the bearing used for connecting the direction-changing plate (23) with the fixed plate (26) is a damping bearing.