Display device based on land planning

Abstract

The utility model belongs to the technical field of display devices, and discloses a land planning-based display device which comprises a first supporting plate, a supporting square pipe is arranged on the first supporting plate, a first placement plate is arranged at the top of the supporting square pipe, and a supporting assembly is arranged on each of the periphery of the supporting square pipe; the supporting square pipe is connected with each supporting assembly through a telescopic mechanism, a lifting plate is connected between the two oppositely-arranged telescopic mechanisms, the lifting plate moves up and down to drive the telescopic mechanisms to stretch out and draw back, and a driving assembly for driving the lifting plate to move up and down is arranged in the supporting square pipe. The driving mechanism is used for driving the lifting plate to move up and down, so that the two oppositely-arranged telescopic mechanisms are driven to synchronously stretch out and draw back to push the supporting assemblies to move in the direction away from or close to the supporting square pipe, synchronous adjustment of the two oppositely-arranged supporting assemblies is achieved, the adjusting speed is high, and efficiency is high; the supporting assemblies are synchronously adjusted, so that the distances between the two oppositely-arranged supporting assemblies and the first supporting plate are consistent, and it is ensured that the model is stably placed.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, in particular to a display device based on land planning. Background Art

[0002] Land planning refers to the long-term arrangement for the rational use of land within a country or a certain region according to the prospects and needs of economic development. It aims to ensure that the use of land can meet the requirements of the proportional development of various sectors of the national economy. The basis of planning is the distribution and allocation of existing natural resources, technical resources and human resources, so that the land can be fully and effectively utilized without being wasted due to human factors. When displaying land planning plans, a model sand table is usually used to enhance the intuitiveness and specificity of the display. However, the existing sand table models often need to be supported by a large sand table table. The sand table table is made according to the size of the sand table model and cannot be reused.

[0003] A model display device for land planning is disclosed in a Chinese utility model patent with publication number CN212256709U, which includes a first placement plate; a support rod is fixedly installed at the middle of the top of the first placement plate; a main placement plate is fixedly installed at the top of the support rod; support devices are evenly arranged on the outer side of the main placement plate along the circumferential direction; the left support device includes a support mechanism and an adjustment mechanism; the support mechanism includes a secondary support plate; an adapter rod is fixedly installed at the middle of the top of the secondary support plate; an "L"-shaped secondary placement plate is fixedly installed at the top of the adapter rod; the adjustment mechanism The joint mechanism includes a reeling rod; a handle is fixedly installed at the bottom end of the reeling rod; installation grooves are provided at the upper and lower parts of the outer side surface of the reeling rod; connecting rings are rotatably installed in the installing grooves; connecting rods are fixedly installed on the right ends of the connecting rings; the right ends of the connecting rods are fixedly connected to the support rods; threaded holes are provided at the rear ends of the connecting rings; tightening bolts are threadedly engaged and connected in the threaded holes; a traction rope is evenly wound around the outer side surface of the reeling rod in the height direction; the left ends of the traction ropes are fixedly connected to the adapter rods; the supporting devices have the same structure and are evenly distributed circumferentially along the outer side surface of the first placement plate.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during use, the above-mentioned device first pulls each adapter rod to a suitable position so that the auxiliary placement plate supports the model, and then retracts the traction rope through the reeling rod to pull the adapter rod in a taut state, thereby limiting the position of the auxiliary placement plate. During the adjustment process, each adapter rod needs to be adjusted individually, and the adjustment efficiency is low. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a display device based on land planning.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a display device based on land planning, including a first support plate, a supporting square tube is arranged on the first support plate, a first placement plate is arranged on the top of the supporting square tube, a supporting component is arranged around each of the supporting square tubes, the supporting square tubes and each supporting component are connected by a telescopic mechanism, a lifting plate is connected between two relatively arranged telescopic mechanisms, the lifting plate moves up and down to drive the telescopic mechanism to extend and retract, and a driving component for driving the lifting plate to move up and down is arranged in the supporting square tube.

[0007] By adopting the above technical scheme, a first placement plate, a support assembly, a telescopic mechanism, a lifting plate and a driving assembly are provided; the land planning model is supported by the first placement plate and the support assembly; the lifting plate is driven up and down by the driving mechanism, thereby driving the two relatively arranged telescopic mechanisms to synchronously extend and retract to push the support assembly to move away from or close to the supporting square tube, thereby realizing synchronous adjustment of the two relatively arranged support assemblies with fast adjustment speed and high efficiency; the synchronous adjustment of the support assembly makes the distance between the two relatively arranged support assemblies and the first support plate consistent, thereby ensuring the stability of the model placement.

[0008] Furthermore, the support assembly includes a second support plate, a support column is arranged on the second support plate, a second placement plate is arranged on the support column, and the upper plate surfaces of the first placement plate and the second placement plate are coplanar.

[0009] By adopting the above technical solution, a second support plate, a support column and a second placement plate are set, and the upper plate surfaces of the first placement plate and the second placement plate are coplanar, so that the model can be stably placed on the first placement plate and the second placement plate.

[0010] Furthermore, the telescopic mechanism includes two support frames respectively arranged on a supporting square tube and a supporting column, a telescopic assembly is arranged between the two support frames, the telescopic assembly includes a plurality of telescopic units, the telescopic unit includes a first movable plate and a second movable plate hingedly connected in the middle, two ends of the first movable plate are respectively hingedly connected to the adjacent ends of the second movable plate of the adjacent telescopic unit, and two ends of the second movable plate of the telescopic unit are respectively hingedly connected to the adjacent ends of the first movable plate of the adjacent telescopic unit, a fixing rod is arranged on the upper part of the inner side wall of the support frame, a sliding groove relative to the notch is opened on the inner side wall of the support frame, a sliding rod is slidably arranged in the sliding groove, the outer end of the first movable plate of the telescopic unit at one end of the telescopic assembly is rotatably connected to the fixing rod of the corresponding support frame, the outer end of the second movable plate is rotatably connected to the sliding rod of the corresponding support frame, the outer end of the first movable plate of the telescopic unit at the other end of the telescopic assembly is rotatably connected to the sliding rod of the corresponding support frame, the outer end of the second movable plate is rotatably connected to the fixing rod of the corresponding support frame, and the sliding rod of the support frame on the supporting square tube is fixedly connected to the lifting plate.

[0011] By adopting the above technical solution, a support frame, a first movable plate, a second movable plate, a fixed rod, a slide groove and a sliding rod are set, and the lifting plate is driven up and down by the driving component, thereby driving the sliding rod to slide in the slide groove, so that the ends of the first movable plate and the second movable plate are close to or away from each other, thereby causing the telescopic component to extend and retract, and then the distance between the two support frames is increased or decreased.

[0012] Furthermore, two groups of telescopic components are arranged at intervals, and both ends of the first movable plates and the second movable plates corresponding to the two groups of telescopic components are connected by a connecting shaft.

[0013] By adopting the above technical solution, both ends of the first movable plate and the second movable plate corresponding to the two sets of telescopic components are connected by a connecting shaft, thereby increasing the structural strength of the telescopic mechanism.

[0014] Furthermore, a groove is provided on the first placement plate corresponding to the second placement plate.

[0015] By adopting the above technical solution, a groove corresponding to the second placement plate is opened on the first placement plate. On the one hand, when storing, the second placement plate is inserted into the groove to limit the second placement plate. On the other hand, while the entire device is easy to store, the area of ​​the first placement plate can be larger and the supporting effect is better.

[0016] Furthermore, the side walls of the first placement plate are each provided with a fixing plate on both sides of the groove, the fixing plate is provided with a through hole, and the second placement plate is provided with a threaded hole.

[0017] By adopting the above technical solution, a fixing plate, a through hole and a threaded hole are set, and a screw is passed through the through hole and then screwed into the threaded hole to fix the first placement plate and the second placement plate in connection, thereby preventing the position of the second placement plate from changing relative to the position of the first placement plate during transportation.

[0018] Furthermore, the driving assembly includes a screw rod that is vertically rotatable and arranged in a supporting square tube, the lifting plate is spirally matched with the screw rod through a threaded hole, a coaxially arranged worm wheel is fixedly arranged on the top of the screw rod, a worm is horizontally rotatable in the supporting square tube, the worm rod is matched with the worm wheel, and one end of the worm rod extends out of the supporting square tube and is provided with a crank.

[0019] By adopting the above technical solution, a lead screw, a worm wheel, a worm and a crank are provided, and the worm is driven to rotate by shaking the crank, thereby driving the worm wheel and the lead screw to rotate, and then driving the lifting plate to rise and fall.

[0020] Furthermore, the side wall of the supporting square tube is provided with a plurality of scale grooves corresponding to the crank handle.

[0021] By adopting the above technical solution, a number of scale grooves are opened on the side wall of the supporting square tube corresponding to the crank handle. After knowing the size of the land planning model, the angle that the crank handle needs to be rotated is calculated according to the length and width of the model. During the rotation of the crank handle, the rotation angle of the crank handle is understood according to the scale grooves.

[0022] In summary, the utility model has the following beneficial effects: in the present application, a first placement plate, a support assembly, a telescopic mechanism, a lifting plate and a driving assembly are provided; the land planning model is supported by the first placement plate and the support assembly; the lifting plate is driven up and down by the driving mechanism, thereby driving the two relatively arranged telescopic mechanisms to synchronously extend and retract to push the support assembly to move away from or close to the supporting square tube, thereby realizing synchronous adjustment of the two relatively arranged support assemblies with fast adjustment speed and high efficiency; the synchronous adjustment of the support assembly makes the distance between the two relatively arranged support assemblies and the first support plate consistent, thereby ensuring the stability of the model placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of the embodiment of the utility model when it is used;

[0025] Figure 3 yes Figure 2 A magnified view of part A;

[0026] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0027] Figure 5 yes Figure 4 A magnified view of part B;

[0028] Figure 6 It is a structural schematic diagram of the telescopic mechanism part of the embodiment of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the telescopic component part of an embodiment of the utility model.

[0030] In the figure: 10, first support plate; 11, supporting square tube; 12, first placement plate; 13, groove; 14, fixed plate; 15, through hole; 16, scale groove; 17, lifting plate; 20, support assembly; 21, second support plate; 22, support column; 23, second placement plate; 30, telescopic mechanism; 31, support frame; 32, telescopic assembly; 33, telescopic unit; 34, first movable plate; 35, second movable plate; 36, fixed rod; 37, slide groove; 38, sliding rod; 39, connecting shaft; 40, driving assembly; 41, screw; 42, worm gear; 43, worm; 44, crank. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with 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, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0032] like Figure 1-7 As shown, the embodiment of the present application discloses a display device based on land planning, including a first placement plate 12, a support assembly 20, a telescopic mechanism 30, and a driving assembly 40. A support square tube 11 is provided at the bottom of the first placement plate 12, and a first support plate 10 is provided at the bottom of the support square tube 11. Universal wheels are provided at the bottom of the first support plate 10 and the support assembly 20 to facilitate the movement of the first support plate 10 and the support assembly 20. The first placement plate 12 and the support assembly 20 are used to support the land planning model. A support assembly 20 is provided around each of the support square tubes 11, and the support square tube 11 and each support assembly 20 are connected by a telescopic mechanism 30. A lifting plate 17 is connected between the two telescopic mechanisms 30 arranged opposite to each other, and the lifting plate 17 moves up and down to drive the telescopic mechanism 30 to extend and retract. The driving assembly 40 is arranged in the supporting square tube 11 to drive the lifting plate 17 to move up and down, driving the telescopic mechanism 30 to extend and retract, thereby driving the supporting assembly 20 to move away from or close to the supporting square tube 11, so that the supporting area of ​​the first placement plate 12 and the top of the supporting assembly 20 can be adjusted according to the size of the land planning model, and the two relatively arranged supporting assemblies 20 can be adjusted synchronously, with fast adjustment speed and high efficiency.

[0033] Specifically, the support assembly 20 includes a second support plate 21, a support column 22 is provided on the second support plate 21, a second placement plate 23 is provided on the support column 22, and the support column 22 supports the second placement plate 23. The upper plate surfaces of the first placement plate 12 and the second placement plate 23 are coplanar, so that the model can be stably placed on the first placement plate 12 and the second placement plate 23.

[0034] The telescopic mechanism 30 includes two support frames 31 respectively arranged on the support square tube 11 and the support column 22, and a telescopic assembly 32 is arranged between the two support frames 31. The telescopic assembly 32 is extended and retracted to change the distance between the two support frames 31, thereby driving the support assembly 20 away from or close to the support square tube 11. The telescopic assembly 32 includes a plurality of telescopic units 33, and the telescopic units 33 include a first movable plate 34 and a second movable plate 35 hingedly connected in the middle, and the two ends of the first movable plate 34 are respectively hingedly connected to the adjacent ends of the second movable plate 35 of the adjacent telescopic unit 33, and the two ends of the second movable plate 35 of the telescopic unit 33 are respectively hingedly connected to the adjacent ends of the first movable plate 34 of the adjacent telescopic unit 33, so that the telescopic units 33 can move synchronously. A fixed rod 36 is arranged on the upper part of the inner side wall of the support frame 31, and a slide groove 37 with opposite notches is opened on the inner side wall of the support frame 31, and a sliding rod 38 is slidably arranged in the slide groove 37, and the sliding rod 38 can slide in the slide groove 37. The outer end of the first movable plate 34 of the telescopic unit 33 at one end of the telescopic assembly 32 is rotatably connected to the fixed rod 36 of the corresponding support frame 31, and the outer end of the second movable plate 35 is rotatably connected to the sliding rod 38 of the corresponding support frame 31. The outer end of the first movable plate 34 of the telescopic unit 33 at the other end of the telescopic assembly 32 is rotatably connected to the sliding rod 38 of the corresponding support frame 31, and the outer end of the second movable plate 35 is rotatably connected to the fixed rod 36 of the corresponding support frame 31, so that when the sliding rod 38 slides in the slide groove 37, the ends of the first movable plate 34 and the second movable plate 35 are moved closer or farther away, thereby extending and retracting the telescopic assembly 32. The telescopic assembly 32 is arranged in two groups at intervals, and the ends of the first movable plates 34 and the second movable plates 35 corresponding to the two groups of telescopic assemblies 32 are connected by a connecting shaft 39, which increases the structural strength of the telescopic mechanism 30.

[0035] In the specific configuration, two groups of drive components 40 are provided, and two support components 20 arranged opposite to each other share one group of drive components 40. The drive component 40 includes a screw 41, a worm wheel 42, a worm 43 and a crank 44. The screw 41 is vertically rotatably arranged in the support square tube 11, and the sliding rod of the support frame 31 on the support square tube 11 is fixedly connected to the lifting plate 17. The lifting plate 17 is spirally matched with the screw 41 through a threaded hole, so that when the screw 41 rotates, the lifting plate 17 is driven to move up and down. The worm wheel 42 is fixedly arranged on the top of the screw 41 and arranged coaxially, and the worm 43 is horizontally rotatably arranged in the support square tube 11. The worm 43 cooperates with the worm wheel 42. One end of the worm 43 extends out of the support square tube 11 and is provided with a crank 44. By shaking the crank 44, the worm 43 is driven to rotate, thereby driving the worm wheel 42 and the screw 41 to rotate, and then driving the lifting plate 17 to rise and fall. The side wall of the supporting square tube 11 is provided with a plurality of scale grooves 16 corresponding to the crank 44. After knowing the size of the land planning model, the angle to which the crank 44 needs to be rotated is calculated based on the length and width of the model. During the rotation of the crank 44, the rotation angle of the crank 44 is known based on the scale grooves 16.

[0036] A groove 13 is provided on the first placement plate 12 corresponding to the second placement plate 23. On the one hand, when the second placement plate 23 is stored, it is inserted into the groove 13 to limit the second placement plate 23. On the other hand, while the entire device is easy to store, the area of ​​the first placement plate 12 can be larger and the supporting effect is better. The side walls of the first placement plate 12 are located on both sides of the groove 13, and fixed plates 14 are provided. A through hole 15 is provided on the fixed plate 14, and a threaded hole is provided on the second placement plate 23. The screw passes through the through hole 15 and is screwed into the threaded hole to fix the first placement plate 12 and the second placement plate 23 together, so as to avoid the position of the second placement plate 12 changing relative to the position of the first placement plate 23 during transportation. Fixed plates 14 are also provided around the first support plate 10 corresponding to the second support plate 21. A through hole 15 is provided on the fixed plate 14, and a threaded hole is provided on the second support plate 21. The screw passes through the through hole 15 and is screwed into the threaded hole to fix the first support plate 12 and the second support plate 21 together, so as to further improve the fixing effect.

[0037] The use principle of a display device based on land planning in this embodiment is as follows: the angle that the crank 44 needs to be shaken is calculated according to the width and length of the land planning model, and then the crank 44 is shaken to drive the worm 43 to rotate, thereby driving the worm wheel 42 and the screw 41 to rotate, and then driving the lifting plate 17 to rise. When the lifting plate 17 rises, it drives the sliding rod 38 to slide in the slide groove 37, so that the telescopic mechanism 30 extends, and the relative support assembly 20 is pushed outward until the crank 44 rotates to a specified angle, and then another crank 44 is shaken to drive the support assembly 20 in another direction to a suitable position, and finally the land planning model is transported to the first placement plate 12 and the second placement plate 23, and the two relatively arranged support assemblies 20 are adjusted synchronously, with fast adjustment speed and high efficiency; when storing, the first placement plate 12 and the second placement plate 23 are fixedly connected by passing a plurality of screws through the through holes 15 and screwing them into the corresponding threaded holes, and the first support plate and the second support plate 21 are fixedly connected to avoid the position of the support assembly 20 relative to the first placement plate 12 and the first support plate 10 changing during transportation.

[0038] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A display device based on land planning, characterized by: The invention comprises a first support plate (10), a support square tube (11) is arranged on the first support plate (10), a first placement plate (12) is arranged on the top of the support square tube (11), a support assembly (20) is arranged around each of the four sides of the support square tube (11), the support square tube (11) and each support assembly (20) are connected via a telescopic mechanism (30), a lifting plate (17) is connected between two telescopic mechanisms (30) arranged opposite to each other, the lifting plate (17) moves up and down to drive the telescopic mechanism (30) to extend and retract, and a driving assembly (40) for driving the lifting plate (17) to move up and down is arranged in the support square tube (11).

2. A display device based on land planning according to claim 1, characterized in that: The support assembly (20) comprises a second support plate (21), a support column (22) is arranged on the second support plate (21), a second placement plate (23) is arranged on the support column (22), and the upper plate surfaces of the first placement plate (12) and the second placement plate (23) are coplanar.

3. The display device based on land planning according to claim 2 is characterized in that: The telescopic mechanism (30) comprises two support frames (31) respectively arranged on the support square tube (11) and the support column (22); a telescopic assembly (32) is arranged between the two support frames (31); the telescopic assembly (32) comprises a plurality of telescopic units (33); the telescopic units (33) comprise a first movable plate (34) and a second movable plate (35) which are hingedly connected in the middle; two ends of the first movable plate (34) are respectively hingedly connected to the adjacent ends of the second movable plate (35) of the adjacent telescopic unit (33); two ends of the second movable plate (35) of the telescopic unit (33) are respectively hingedly connected to the adjacent ends of the first movable plate (34) of the adjacent telescopic unit (33); a fixing rod (36) is arranged on the upper part of the inner side wall of the support frame (31); the support frame (31) ) an inner wall is provided with a slide groove (37) with grooves opposite to each other, a sliding rod (38) is slidably arranged in the slide groove (37), an outer end of the first movable plate (34) of the telescopic unit (33) at one end of the telescopic assembly (32) is rotatably connected to the fixed rod (36) of the corresponding support frame (31), and an outer end of the second movable plate (35) is rotatably connected to the sliding rod (38) of the corresponding support frame (31), an outer end of the first movable plate (34) of the telescopic unit (33) at the other end of the telescopic assembly (32) is rotatably connected to the sliding rod (38) of the corresponding support frame (31), and an outer end of the second movable plate (35) is rotatably connected to the fixed rod (36) of the corresponding support frame (31), and the sliding rod of the support frame (31) on the supporting square tube (11) is fixedly connected to the lifting plate (17).

4. The display device based on land planning according to claim 3 is characterized in that: The telescopic components (32) are arranged in two groups at intervals, and the two ends of the first movable plates (34) and the second movable plates (35) corresponding to the two groups of telescopic components (32) are connected via a connecting shaft (39).

5. The display device based on land planning according to claim 2 is characterized in that: The first placement plate (12) is provided with a groove (13) corresponding to the second placement plate (23).

6. The display device based on land planning according to claim 5 is characterized in that: The side walls of the first placement plate (12) are each provided with a fixing plate (14) on both sides of the groove (13); a through hole (15) is provided on the fixing plate (14); and a threaded hole is provided on the second placement plate (23).

7. The display device based on land planning according to claim 1 is characterized in that: The driving assembly (40) comprises a screw (41) which is vertically rotatably arranged in the supporting square tube (11); the lifting plate (17) is screw-matched with the screw (41) through a threaded hole; a worm wheel (42) which is coaxially arranged is fixedly arranged on the top of the screw (41); a worm (43) is horizontally rotatably arranged in the supporting square tube (11); the worm (43) is matched with the worm wheel (42); one end of the worm (43) extends out of the supporting square tube (11) and is provided with a crank (44).

8. The display device based on land planning according to claim 7 is characterized in that: The side wall of the supporting square tube (11) is provided with a plurality of scale grooves (16) corresponding to the crank (44).

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