Curve real-time change display device

Abstract

The invention relates to the technical field of economic equipment, in particular to a curve real-time change display device which comprises a base, a plurality of first supports are detachably connected to the base, third connecting rods are arranged on the first supports, and display screens are rotationally connected to the ends of the third connecting rods; each first support is provided with a first driving assembly used for driving the corresponding display screen to rotate. The base is detachably connected with an erasing assembly, and the erasing assembly is used for eliminating dust and static electricity on the display screen; the angle of the display screen can be adjusted, dust removal and static electricity removal operation can be conducted on the display screen, and damage to the display screen due to the fact that a large amount of dust and static electricity are generated is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of economic equipment, and particularly relates to a device for real-time display of curve changes. Background Art

[0002] In economics, various economic change curves are often studied, such as the Phillips curve, Lorenz curve, etc. For some economic curves with real-time changes, such as some real-time economic consumption curves related to the financial industry, online shopping industry, agriculture, industry, commerce, etc., these curves need to be updated in real time with big data on the Internet, so as to facilitate the display of economic curves in various industries. Due to the real-time update feature of these curves, during the display process, multiple monitors are required, and the multiple monitors have a certain angle adjustment ability.

[0003] In response to the above problems, the patent with the publication number: CN111489657B discloses a device for real-time change of economic change curves in economics. It uses a rotating ring driven by an intermittent driving device. Multiple groups of electric telescopic rods are connected to the lower end of the rotating ring. During the downward movement of the electric telescopic rods, the moving blocks are driven to move, so that the angle of the display screen changes, which is convenient for viewers to observe. At the same time, when reading data, the information connecting rod and the information connecting hole are docked to facilitate information transmission. At the shaft end of the bidirectional lead screw in the rotating ring, due to the one-way transmission of the first one-way bearing, when the display screen is at different extreme positions up and down, that is, at different working positions, the positive and reverse motors drive the heat dissipation structures in different directions to dissipate heat, avoiding incalculable economic losses caused by overheating of the processor.

[0004] However, the device for real-time change of economic change curves in economics still has the following problems during use: 1. The device for real-time change of economic change curves in economics does not have a dust removal and anti-static structure. When the display screen is used for a long time, a large amount of dust and static electricity are easily generated, which is likely to cause damage to the display; 2. The structure of the device for real-time change of economic change curves in economics is complex and inconvenient to disassemble and install, so it is easy to cause inconvenience in cleaning. Summary of the Invention

[0005] In response to the above existing problems, the present invention aims to provide a device for real-time display of curve changes, so as to at least solve the problems that the device for real-time change of economic change curves in the prior art cannot remove dust and static electricity and is inconvenient to disassemble.

[0006] The main idea of the technical solution adopted by the present invention: A real-time changing display device for design curves, comprising: a base, a plurality of first brackets detachably arranged on the base, a display screen rotatably connected to the first brackets, enabling the angle adjustment of the economic change curve during display, and while being convenient for viewing, the first brackets and the connected display screen can be detached, facilitating the repair of parts and cleaning; a first driving component for driving the display screen to rotate is arranged on the first brackets, and through the cooperation of gears, threaded rods and connecting rods, the rotational motion is converted into linear motion, and then the display screen is supported by the connecting rod, thereby changing the angle of the display screen; a wiping component is detachably connected to the base, and a dust removal plate and an anode plate that can slide up and down are provided, which can remove dust or static electricity from the display screen, and by flipping the dust removal plate and the anode plate, the functions of dust removal and static electricity removal are realized, avoiding the damage of the display screen caused by a large amount of dust and static electricity; a limiting component is also arranged on the base, and through the limiting component, structures such as the first brackets can be stably installed or removed on the base, facilitating the replacement of parts and cleaning.

[0007] To achieve the above object, the technical solution adopted by the present invention to solve its technical problems is: A curve real-time changing display device, comprising: a base, a plurality of first brackets detachably connected to the base, third connecting rods are arranged on each of the first brackets, and display screens are rotatably connected to the ends of the third connecting rods; A first driving component for driving the corresponding display screen to rotate is arranged on each first bracket; A wiping component is detachably connected to the base, and the wiping component is used to remove dust and static electricity from the display screen.

[0008] Further, the first driving component includes: a threaded rod, an annular member, a first connecting rod and a second connecting rod; The threaded rod is rotatably connected to one side of the first bracket close to the display screen; The annular member is threadedly sleeved outside the threaded rod; One end of the first connecting rod is slidably connected to the first bracket, and the other end is movably connected to the annular member; One end of the second connecting rod is rotatably connected to the display screen, and the other end is movably connected to the annular member.

[0009] Further, a second gear is arranged at the top of the threaded rod, and a first motor is arranged on the first bracket; A first gear is arranged on the output shaft of the first motor; The first gear meshes with the second gear.

[0010] Further, the wiping component includes: a second bracket, a dust removal plate, a connecting rod and two movable rods; Both ends of the bottom of the second bracket are sleeved outside the base; The two movable rods are respectively slidably connected to both ends of the second bracket and are connected with a connecting rod in the middle; The dust removal plate is movably arranged between two movable rods; An anode plate is arranged on one side of the dust removal plate.

[0011] Furthermore, fixing blocks are arranged on both of the two movable rods; A third motor is rotatably arranged on one of the fixing blocks, and the output shaft of the third motor is connected to the dust removal plate.

[0012] Furthermore, a third groove is arranged at the top of the base, and a second driving component is arranged between the third groove and the connecting rod. The second driving component is used to drive the erasing component to move up and down.

[0013] Furthermore, the second driving component includes: a second motor, a third gear, two fourth connecting rods and a rack; The second motor is arranged in the third groove, and the third gear is connected to the output shaft of the second motor; The two racks are respectively located on both sides of the third gear and mesh with the third gear; One ends of the two fourth connecting rods are rotatably connected to the middle of the connecting rod, and the other ends are respectively rotatably connected to the two racks.

[0014] Furthermore, legs are arranged at the bottom of the first bracket, and multiple groups of first grooves and second grooves for clamping the legs are arranged on the base.

[0015] Furthermore, a limiting component for fixing the legs is arranged between each leg and the base.

[0016] Furthermore, the limiting component includes: a fourth bracket and a sliding rod; The fourth bracket is installed on the base, and the sliding rod slidably penetrates through the fourth bracket, the base and the corresponding leg; An extrusion piece and a spring are arranged on the sliding rod, and the spring is located between the extrusion piece and the fourth bracket.

[0017] Compared with the prior art, the present invention has the following advantages: The first driving component in the present invention can drive the display screen to rotate to various angles, enabling the economic change curve to have an angle-adjustable function during display, which is convenient for viewing; through the second driving component and the erasing component, dust removal and static elimination operations can be performed on the display screen, avoiding damage to the display screen caused by a large amount of dust and static electricity; by arranging the fourth bracket, the display screen and its connected structures can be disassembled from the base, which is convenient for cleaning.

[0018] In the present invention, by providing a first driving component, when the first motor is turned on, the first motor drives the first gear to rotate axially. At this time, the first gear drives the second gear meshing with it to rotate radially, thereby driving the threaded rod to rotate. At this time, the annular member and the universal joint connected thereto rotate, and at the same time, the annular member moves upward or downward. When the annular member moves upward, it drives the first connecting rod to move upward, and at the same time drives the end of the second connecting rod provided with the universal joint to also move upward. The second connecting rod supports the lower part of the display screen, causing the display screen to rotate away from the bracket, realizing that the angle of the economic change curve can be adjusted during display, which is convenient for viewing.

[0019] In the present invention, by providing an erasing component and a second driving component, after the second motor is turned on, it can drive the connecting rod to move upward, thereby driving the dust removal plate and the anode plate to move upward, and further realizing the dust removal or static elimination of the display screen, avoiding damage to the display screen caused by a large amount of dust and static electricity. Moreover, by flipping the dust removal plate, the conversion of the dust removal or static elimination function can also be realized.

[0020] In the present invention, by providing a limiting component, the erasing component and the first bracket can be disassembled or fixed on the base, which is not only convenient for replacing parts and maintenance, but also convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front structural schematic diagram of a curve real-time change display device proposed by the present invention; Figure 2 is a back structural schematic diagram of a curve real-time change display device proposed by the present invention; Figure 3 is proposed by the present invention Figure 2 an enlarged schematic diagram of part A in; Figure 4 is a structural schematic diagram of the base proposed by the present invention; Figure 5 is a structural schematic diagram of the first bracket proposed by the present invention; Figure 6 is a connection schematic diagram of the first bracket, the first driving component and the display screen proposed by the present invention; Figure 7 is proposed by the present invention Figure 6 an enlarged schematic diagram of part B in; Figure 8 is a structural schematic diagram of the erasing component proposed by the present invention; Figure 9 is proposed by the present invention Figure 8 an enlarged schematic diagram of part C in; Figure 10 is proposed by the present invention Figure 8 an enlarged schematic diagram of part D in; Figure 11Internal structure schematic diagram of the erasing component proposed by the present invention; Figure 12 Structural schematic diagram of the limiting component proposed by the present invention.

[0022] Among them, the above-mentioned drawings include the following reference numerals: 10. Base; 11. First groove; 12. Second groove; 13. First through hole; 14. Third groove; 20. First bracket; 21. First gear; 211. First motor; 22. Threaded rod; 221. Second gear; 23. Ring-shaped part; 231. Ring-shaped groove; 24. First connecting rod; 25. Second connecting rod; 26. Third connecting rod; 27. Leg; 271. Second through hole; 28. Extension rod; 30. Second bracket; 31. Movable rod; 311. Fixed block; 312. Telescopic rod; 32. Connecting rod; 33. Connecting piece; 34. Second motor; 35. Fourth connecting rod; 36. Third gear; 37. Rack; 371. Connecting block; 40. Dust removal plate; 41. Anode plate; 42. Insulating connecting plate; 43. Third motor; 50. Fourth bracket; 51. Sliding rod; 52. Extrusion piece; 53. Adjusting piece; 54. Spring; 60. Display screen. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. 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. Embodiment

[0025] As Figure 1-12 shown, the present invention discloses a device for displaying real-time curve changes, including: a base 10, as Figure 1 and Figure 2As shown, a plurality of first brackets 20 are detachably connected to the base 10. The upper half of each first bracket 20 is provided with a third connecting rod 26. A long notch is provided in the middle of the back of the display screen 60. A shaft with bevel gears is provided in the notch. The end of the third connecting rod 26 is sleeved outside the shaft with bevel gears and meshes with it. When the display screen 60 rotates, it can stop at any position, improving its stability and avoiding the shaking of the display screen 60 caused by the lack of a locking structure when changing the angle. A first driving component for driving the corresponding display screen 60 to rotate is provided on each first bracket 20. An erasing component is detachably connected to the base 10, and the erasing component is used to remove dust and static electricity on the display screen 60.

[0026] Further, as Figure 6 shown, the first driving component includes: a threaded rod 22, an annular member 23, a first connecting rod 24 and a second connecting rod 25; as Figure 5 shown, an extension rod 28 is provided on the side of the first bracket 20 close to the display screen 60. The threaded rod 22 is rotatably connected to the extension rod 28. The annular member 23 is sleeved outside the threaded rod 22 and meshes with the threaded rod 22. A sliding groove is provided on the side of the first bracket 20 close to the display screen 60, and the sliding groove is located between the third connecting rod 26 and the extension rod 28. One end of the first connecting rod 24 is slidably connected to the sliding groove of the first bracket 20; as Figure 7 shown, an annular groove 231 is provided on the outer ring of the annular member 23. The other end of the first connecting rod 24 is connected to a universal joint, and the universal joint is rotatably connected to the annular groove 231. One end of the second connecting rod 25 is rotatably connected to the lower half of the display screen 60, and the other end is connected to the universal joint, and the universal joint is also rotatably connected to the annular groove 231. When the threaded rod 22 rotates, it drives the annular member 23 and the universal joint connected thereto to rotate. At the same time, the annular member 23 moves up or down. When the annular member 23 moves up, it drives the first connecting rod 24 to move up, and at the same time drives the end of the second connecting rod 25 provided with the universal joint to move up. Since the third connecting rod 26 meshes with the shaft with bevel gears provided in the middle of the display screen 60, at this time, the second connecting rod 25 supports the lower part of the display screen 60, so that the display screen 60 rotates away from the bracket around the bevel gear shaft in the middle of its back. If the annular member 23 moves down, the display screen 60 will rotate towards the bracket around the bevel gear shaft in the middle of its back.

[0027] Further, as Figure 6As shown, a second gear 221 is provided at the top of the threaded rod 22, and a first motor 211 is provided on the first bracket 20; the output shaft of the first motor 211 is perpendicular to the threaded rod 22, and a first gear 21 is provided on the output shaft of the first motor 211, and the first gear 21 meshes with the second gear 221; when the first motor 211 is turned on, the first motor 211 drives the first gear 21 to rotate axially. At this time, the first gear 21 drives the second gear 221 engaged with it to rotate radially, thereby driving the threaded rod 22 to rotate. When the threaded rod 22 rotates, it drives the annular member 23 and the universal joint connected thereto to rotate, and at the same time, the annular member 23 moves upward or downward. When the annular member 23 moves upward, it drives the first connecting rod 24 to move upward, and at the same time drives one end of the second connecting rod 25 provided with the universal joint to move upward. Since the third connecting rod 26 meshes with the shaft with bevel gears provided in the middle of the display screen 60, at this time, the second connecting rod 25 supports the lower part of the display screen 60, so that the display screen 60 rotates away from the bracket around the bevel gear shaft in the middle of its back.

[0028] Further, as Figure 8 shown, the erasing assembly includes: a second bracket 30, a dust removal plate 40, a connecting rod 32 and two movable rods 31; the second bracket 30 is rectangular and hollowed out at its lower part, and both ends of the bottom of the second bracket 30 are sleeved outside the base 10; both ends of the second bracket 30 are provided with chutes, and the two movable rods 31 are respectively slidably connected to both ends of the second bracket 30 through the chutes, and a connecting rod 32 is connected between the two movable rods 31; as Figure 11 shown, fixing blocks 311 are provided at both ends of the connecting rod 32, a third motor 43 is provided on one of the fixing blocks 311, the dust removal plate 40 is connected to the output shaft of the third motor 43, and the dust removal plate 40 is located between the two fixing blocks 311; an anode plate 41 is provided on one side of the dust removal plate 40. After the third motor 43 is turned on, the dust removal plate 40 and the anode plate 41 are reversed to realize the replacement of the dust removal and static elimination functions; since the dust removal plate 40 is connected to the third motor 43, in order to prevent the third motor 43 from affecting the static elimination effect of the anode plate 41, an insulating connecting plate 42 is provided between the dust removal plate 40 and the anode plate 41; telescopic rods 312 are provided at the bottoms of the two movable rods 31, and the telescopic rods 312 are arranged inside the second bracket 30. When the connecting rod 32 moves upward or downward, it drives the two movable rods 31 to move upward or downward, thereby realizing the upward or downward movement of the dust removal plate 40 and the anode plate 41, and further realizing the dust removal or static elimination of the display screen 60. Since the two movable rods 31 move upward or downward, they drive the two telescopic rods 312 at the bottom to stretch or contract, and the two telescopic rods 312 provide a certain supporting force for the two movable rods 31, improving the stability.

[0029] Further, as Figure 4As shown, a third groove 14 is provided at the top of the base 10, and a second driving assembly is provided between the third groove 14 and the connecting rod 32. The second driving assembly is used to drive the erasing assembly to move up and down.

[0030] Further, as Figure 9 shown, the second driving assembly includes: a second motor 34, a third gear 36, two fourth connecting rods 35 and a rack 37; the second motor 34 is disposed in the third groove 14, and the third gear 36 is connected to the output shaft of the second motor 34; the two racks 37 are respectively located on both sides of the third gear 36 and mesh with the third gear 36, and the sides of the two racks 37 away from the third gear 36 are both in contact with the third groove 14; a connecting member 33 is provided at the middle end of the connecting rod 32, and one ends of the two fourth connecting rods 35 are respectively rotatably connected to the bottom of the connecting member 33; as Figure 10 shown, connecting blocks 371 are provided at the opposite ends of the two racks 37, and the other ends of the two fourth connecting rods 35 are respectively rotatably connected to the two connecting blocks 371; after the second motor 34 is turned on, the second motor 34 drives the third gear 36 to rotate clockwise or counterclockwise. When the third gear 36 rotates clockwise, the two racks 37 meshing with the third gear 36 move towards each other. At this time, the distance between the ends of the two racks 37 is shortened, and the two fourth connecting rods 35 rotatably connected to the connecting blocks 371 both rotate. At the same time, the two fourth connecting rods 35 push the connecting member 33 and the connecting rod 32 upward, so as to drive the connecting rod 32 to move upward, thereby driving the dust removal plate 40 and the anode plate 41 to move upward, and further realizing dust removal or static elimination of the display screen 60; when the third gear 36 rotates counterclockwise, the two racks 37 meshing with the third gear 36 move in the opposite direction. At this time, the distance between the ends of the two racks 37 is increased, and the two fourth connecting rods 35 rotatably connected to the connecting blocks 371 both rotate. At the same time, the two fourth connecting rods 35 pull the connecting member 33 and the connecting rod 32 downward, so as to drive the connecting rod 32 to move downward, thereby driving the dust removal plate 40 and the anode plate 41 to move downward.

[0031] Further, legs 27 are provided at the bottom of the first bracket 20. The legs 27 are U-shaped. As Figure 4 shown, a plurality of first grooves 11 and second grooves 12 for clamping the legs 27 are provided on the base 10. The first grooves 11 and the second grooves 12 are located on both sides of the base 10 and are matched with the legs 27. Embodiment

[0032] According to Embodiment 1, in order to enable the first bracket 20 to be easily disassembled and installed and to be stably connected to the base 10 after installation, further, a limiting assembly is provided between each leg 27 and the base 10; Further, the limiting component includes: a fourth bracket 50 and a sliding rod 51; the fourth bracket 50 is installed on the base 10, and the fourth bracket 50 is located beside the corresponding second groove 12; as Figure 3 and Figure 12 shown, the sliding rod 51 slidably penetrates through the fourth bracket 50, the base 10, and the corresponding leg 27. The sliding rod 51 passes through the first through hole 13 provided on the base 10 and passes through the second through hole 271 provided on the leg 27; the sliding rod 51 is provided with an extrusion member 52 and a spring 54, and the spring 54 is located between the extrusion member 52 and the corresponding fourth bracket 50; the top of the extrusion member 52 is provided with an adjusting member 53, and both ends of the adjusting member 53 are slidably connected to the corresponding fourth bracket 50; when sliding the adjusting member 53, the adjusting member 53 drives the extrusion member 52 and the sliding rod 51 to slide. At this time, the spring 54 is in a compressed state. When the sliding rod 51 slides out of the leg 27, the leg 27 can be moved upward and disassembled; when the first bracket 20 needs to be installed, slide the adjusting member 53, and the adjusting member 53 drives the extrusion member 52 and the sliding rod 51 to slide. At this time, the spring 54 is in a compressed state. When the sliding rod 51 slides out of the base 10, the first bracket 20 can be snapped onto the first groove 11 and the second groove 12 through the leg 27. After snapping, release the adjusting member 53. At this time, the spring 54 returns to its normal state, and the sliding rod 51 slides toward the leg 27 side under the action of the spring 54 and penetrates through the leg 27. At the same time, the extrusion member 52 abuts against the leg 27 under the action of the spring 54, so that the first bracket 20 can be stably installed on the base 10.

[0033] The working principle of a curve real-time change display device provided in the present invention during use is as follows: When the angle of the display screen 60 needs to be adjusted: turn on the first motor 211, and the first motor 211 drives the first gear 21 to rotate axially. At this time, the first gear 21 drives the second gear 221 engaged with it to rotate radially, thereby driving the threaded rod 22 to rotate. When the threaded rod 22 rotates, it drives the annular member 23 and the universal joint connected thereto to rotate. At the same time, the annular member 23 moves upward or downward. When the annular member 23 moves upward, it drives the first connecting rod 24 to move upward, and at the same time drives one end of the second connecting rod 25 provided with the universal joint to move upward. Since the third connecting rod 26 meshes with the shaft with bevel teeth provided in the middle of the display screen 60, at this time, the second connecting rod 25 supports the lower part of the display screen 60, so that the display screen 60 rotates away from the bracket around the bevel gear shaft in the middle of its back; When dust removal is required: Turn on the second motor 34. The second motor 34 drives the third gear 36 to rotate clockwise or counterclockwise. When the third gear 36 rotates clockwise, the two racks 37 meshing with the third gear 36 move towards each other. At this time, the distance between the ends of the two racks 37 is shortened, and the two fourth linkages 35 rotatably connected to the connecting block 371 both rotate. At the same time, the two fourth linkages 35 push the connecting member 33 and the connecting rod 32 upward, driving the connecting rod 32 to move upward, thereby driving the dust removal plate 40 to move upward, and further realizing the dust removal work on the display screen 60. When static elimination is required: Turn on the third motor 43. The dust removal plate 40 and the anode plate 41 are reversed to realize the replacement of the dust removal and static elimination functions. Then turn on the second motor 34 to make the erasing assembly operate. When the first bracket 20 and the erasing assembly need to be disassembled: Slide the adjusting member 53. The adjusting member 53 drives the pressing member 52 and the sliding rod 51 to slide. At this time, the spring 54 is in a compressed state. When the sliding rod 51 slides out of engagement with the leg 27, the leg 27 can be moved upward and disassembled, and at the same time, the erasing assembly can also be disassembled.

[0034] The above description of the embodiments is for those of ordinary skill in the art in this technical field to understand and apply the present invention. It is obvious that those skilled in the art can easily make various modifications to the above embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art based on the disclosure of the present invention should fall within the protection scope of the present invention.

Claims

1. A device for displaying real-time curve changes, comprising: A base (10), characterized in that a plurality of first brackets (20) are detachably connected to the base (10), each of the first brackets (20) is provided with a third connecting rod (26), and each end of the third connecting rod (26) is rotatably connected to a display screen (60); Each of the first brackets (20) is provided with a first driving component for driving the corresponding display screen (60) to rotate; An erasing component is detachably connected to the base (10), and the erasing component is used to eliminate dust and static electricity on the display screen (60).

2. A curve real-time change display device according to claim 1, characterized in that: The first driving assembly comprises: a threaded rod (22), a ring member (23), a first connecting rod (24) and a second connecting rod (25); The threaded rod (22) is rotatably connected to a side of the first bracket (20) close to the display screen (60); The annular member (23) is threadably sleeved on the outside of the threaded rod (22); One end of the first connecting rod (24) is slidably connected to the first bracket (20), and the other end is movably connected to the annular member (23); One end of the second connecting rod (25) is rotatably connected to the display screen (60), and the other end is movably connected to the annular member (23).

3. A curve real-time change display device according to claim 2, characterized in that: A second gear (221) is disposed on the top of the threaded rod (22), and a first motor (211) is disposed on the first bracket (20); A first gear (21) is provided on the output shaft of the first motor (211); The first gear (21) is meshed with the second gear (221).

4. The device for displaying real-time curve changes according to claim 1, characterized in that: The erasing assembly comprises: a second bracket (30), a dust removal plate (40), a connecting rod (32) and two movable rods (31); The two ends of the bottom of the second bracket (30) are sleeved outside the base (10); The two movable rods (31) are respectively slidably connected to the two ends of the second bracket (30) and are connected to the connecting rod (32) in the middle; The dust removal plate (40) is movably disposed between the two movable rods (31); An anode plate (41) is provided on one side of the dust removal plate (40).

5. A curve real-time change display device according to claim 4, characterized in that: The two movable rods (31) are both provided with a fixing block (311); A third motor (43) is rotatably mounted on one of the fixed blocks (311), and an output shaft of the third motor (43) is connected to the dust removal plate (40).

6. A curve real-time change display device according to claim 4, characterized in that: A third groove (14) is provided on the top of the base (10), and a second driving assembly is provided between the third groove (14) and the connecting rod (32), the second driving assembly being used to drive the erasing assembly to rise and fall.

7. A curve real-time change display device according to claim 6, characterized in that: The second driving assembly comprises: a second motor (34), a third gear (36), two fourth connecting rods (35) and a rack (37); The second motor (34) is disposed in the third groove (14), and the third gear (36) is connected to an output shaft of the second motor (34); The two racks (37) are respectively located on both sides of the third gear (36) and mesh with the third gear (36); One end of the two fourth connecting rods (35) is rotatably connected to the middle end of the connecting rod (32), and the other end is rotatably connected to the two racks (37) respectively.

8. A curve real-time change display device according to claim 7, characterized in that: A support leg (27) is provided at the bottom of the first bracket (20), and a plurality of groups of first grooves (11) and second grooves (12) for clamping the support leg (27) are provided on the base (10).

9. A curve real-time change display device according to claim 8, characterized in that: A limiting component for fixing the supporting leg (27) is provided between each supporting leg (27) and the base (10).

10. A curve real-time change display device according to claim 9, characterized in that: The position limiting assembly comprises: a fourth bracket (50) and a sliding rod (51); The fourth bracket (50) is mounted on the base (10), and the sliding rod (51) slides through the fourth bracket (50), the base (10) and the corresponding supporting leg (27); The sliding rod (51) is provided with an extrusion piece (52) and a spring (54), and the spring (54) is located between the extrusion piece (52) and the fourth bracket (50).

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