CN112634675A - Display device for economics - Google Patents

Display device for economics Download PDF

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Publication number
CN112634675A
CN112634675A CN202110008590.2A CN202110008590A CN112634675A CN 112634675 A CN112634675 A CN 112634675A CN 202110008590 A CN202110008590 A CN 202110008590A CN 112634675 A CN112634675 A CN 112634675A
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China
Prior art keywords
motor
display board
rope
board
display
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Granted
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CN202110008590.2A
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Chinese (zh)
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CN112634675B (en
Inventor
王秀凤
孔凡娜
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Qingdao Huanghai University
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Qingdao Huanghai University
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/048—Allowing translations adapted to forward-backward translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention provides a display device for economics, which comprises a base, a display board, a controller and two groups of supports, wherein the base is provided with a plurality of supporting plates; the two groups of brackets are respectively symmetrical, the fixing frames are arranged at the top of the base, and two ends of the display board are respectively rotatably connected with the two groups of brackets; the front surface of the display board is a white board, strip-shaped through grooves are arranged in parallel, and a strip-shaped column structure is arranged in each through groove; each long strip column structure comprises a first screw rod, a sliding block, an indicating rod and a nut; the front side of the sliding block is fixedly provided with an installation block, one side of the front side of the display board is fixedly provided with a vertical baffle, and the bottom of the display board is fixedly provided with a transverse baffle; the bottom of the mounting block is fixedly provided with a laser sensor; the front side of the display board is provided with a plurality of electronic boards, and an electronic screen is erected above the display board; the range of the ordinate is input in the electronic screen, and the distance measured by each laser sensor is converted into an ordinate value to be displayed on the electronic board. The device can show the statistical chart through the show board fast to this statistical chart is convenient for adjust and change.

Description

Display device for economics
Technical Field
The invention relates to the technical field of teaching devices, in particular to a display device for economics.
Background
The science of economics is an organic whole, is a subject for researching various economic activities and various corresponding economic relationships of human society in various development stages and the operation and development rules thereof, and the economics specialty is an essential subject in various colleges and universities. However, economics is a relatively boring subject on a classroom, teaching is mainly performed through character explanation in a classroom, teaching contents are boring, a large amount of time is needed for books in the explanation process, and teaching efficiency is low. In the teaching of the economics of each college and universities, teaching aids and devices with high practicability do not exist for assisting teaching, and particularly when a complex economics theory is explained, a large amount of time is spent on drawing statistical graphs on a blackboard, so that the teaching efficiency and quality are greatly influenced, the enthusiasm of students in class is reduced due to tedious explanation, and the learning achievement of the students is influenced. To this end, the invention proposes a display device for economics.
Disclosure of Invention
To solve the above problems, it is an object of the present invention to provide a display device for economics. The device can show the statistical chart through the show board fast to this statistical chart is convenient for adjust and change.
In order to achieve the above purpose, the present invention provides the following technical solutions.
A display device for economics comprises a base, a display board, a controller and two groups of supports; the two groups of the supports are respectively symmetrical, the fixing frames are arranged at two ends of the top of the base, and two ends of the display board are respectively in rotating connection with the two groups of the supports;
the front surface of the display board is a white board, a plurality of strip-shaped through grooves are formed in parallel, and a strip-shaped column structure is arranged in each through groove; each long columnar structure comprises a first screw rod, a sliding block and a nut; the sliding block is arranged in the through groove in a sliding manner; the first screw rod penetrates through the sliding block, two ends of the first screw rod are respectively and rotatably connected with two ends of the through groove, and the first screw rod (21) is in threaded fit with the sliding block; the nut is arranged at the top of the display board, a rotating shaft is fixedly arranged at the bottom of the display board, and the rotating shaft penetrates through the display board and is in transmission connection with the first screw rod;
the front side of the sliding block is fixedly provided with an installation block, one side of the front side of the display board is fixedly provided with a vertical baffle, and the bottom of the display board is fixedly provided with a transverse baffle; scales are carved on one side of the vertical baffle; the bottom of the mounting block is fixedly provided with a laser sensor; the front surface of the display board is provided with a plurality of electronic boards, and each electronic board is arranged above each through groove;
an electronic screen is erected above the display board, and the electronic screen and the plurality of laser sensors are electrically connected with the controller; and inputting the range of a vertical coordinate in the electronic screen, and converting the distance measured by each laser sensor into a vertical coordinate value to be displayed on the electronic board.
Preferably, the electronic board displays a value X:
Figure BDA0002884091480000021
in the formula, amaxIs the distance measured by the laser sensor when the slide block moves to the top of the through groove, atFor the distance measured in real time by the laser sensor, bminThe minimum value of the input vertical coordinate in the electronic screen is set as; bmaxAnd inputting the maximum value of the ordinate in the electronic screen.
Preferably, an indication rod is further included; the indication rod penetrates through the mounting block, is fixedly connected with the mounting block and is in sliding fit with the front side of the display board; one end of the indicating rod facing the vertical baffle is provided with a visible light emitter.
Preferably, a fold line structure is also included; the broken line structure comprises a color rope and a rope collecting device erected at the top of the mounting block at the rightmost end; except the other of the rightmost end, the top of the installation block is fixedly provided with a rope ring, one end of the colored rope is fixedly arranged on the rope ring at the leftmost end, and the other end of the colored rope sequentially penetrates through the rope rings and is connected with the rope collecting device.
Preferably, the rope collecting device comprises a first motor, a rope wheel and two motor plates; the two motor plates are fixedly arranged at the top of the mounting block, and two ends of the rope wheel are respectively in rotating connection with the two motor plates; the first motor is fixedly arranged on the outer side of the motor plate, and an output shaft of the first motor is in transmission connection with the rope pulley; the other end of the color rope is fixedly connected with the rope wheel.
Preferably, each set of said supports comprises a mobile support and a rotating device; the two groups of moving supports are respectively symmetrical and fixed on the top of the base, the two groups of rotating devices are symmetrically and respectively arranged on the two groups of moving supports in a sliding manner, and each group of moving supports drives one group of rotating devices to move along the length direction of the moving supports; the two sides of the display board are respectively fixedly connected with the output ends of the two groups of rotating devices and are driven to rotate by the two groups of rotating devices; the base comprises a bottom plate and cylinders fixed at four corners of the bottom plate; and a push rod of each air cylinder is fixedly provided with a universal wheel.
Preferably, each of the moving brackets comprises a return frame, a second screw, a moving block and a second motor; the clip is fixedly arranged on the top of the bottom plate; the moving block is arranged in the clip groove in a sliding manner; the second screw penetrates through the moving block and is in threaded fit with the moving block, and two ends of the second screw are respectively in rotating connection with the top and the bottom of the return frame; the second motor is fixedly arranged at the top of the circular frame, and an output shaft of the second motor is in transmission connection with the second screw rod.
Preferably, each set of the rotating devices comprises a frame plate and a third motor; four corners of the bottom of the frame plate are respectively arranged on one side, close to the display plate, of the moving block through a supporting rod fixing frame; the third motor is fixedly arranged on the inner side of the frame plate, and an output shaft of the third motor penetrates through the frame plate and is fixedly connected with the side face of the display plate.
Preferably, the electronic screen is rotatably erected in front of the display board through a connecting rod device; the connecting rod device comprises a fourth motor, a fifth motor, a connecting rod and a rotating shaft; the fifth motor is fixedly arranged at one end of the connecting rod, an output shaft of the fifth motor penetrates through the connecting rod to be rotatably connected with the upper end of one side of the display board, and the output shaft of the fifth motor is fixedly connected with the connecting rod; the fourth motor is fixedly arranged at the other end of the connecting rod, an output shaft of the fourth motor penetrates through the connecting rod and is in transmission connection with one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected with one side of the electronic screen.
The invention has the beneficial effects that:
the invention provides a display device for economics, which displays a statistical chart through a display board, can rotate a nut to drive an indicating rod to move up and down through an input range of an electronic screen, realizes drawing of a bar chart, and realizes display of a line chart by combining a colored rope and a rope winding device; the device is provided with the bracket with adjustable angle and height, so that the teaching use of the display board is facilitated, and the adjusting mode is simple; the device is provided with the electronic screen, and the position of the electronic screen is adjusted by adopting a connecting rod structure, so that the manual operation of a teacher is facilitated, and meanwhile, the classroom explanation of the teacher is facilitated.
The invention is further described with reference to the following figures and examples.
Drawings
FIG. 1 is an overall block diagram of a display device for economics according to an embodiment of the present invention;
FIG. 2 is a view showing a structure of a display board of the display apparatus for economics according to the embodiment of the present invention;
FIG. 3 is a block diagram of a localized area A of the display device for economics according to an embodiment of the present invention;
fig. 4 is a block diagram of a partial area B of the display device for economics according to an embodiment of the present invention.
In the figure: 1. a universal wheel; 2. a cylinder; 3. a base plate; 4. a shape-returning frame; 5. a second screw; 6. a transverse baffle plate; 7. a display board; 8. a vertical baffle plate; 9. a support bar; 10. a third motor; 11. a moving block; 12. a frame plate; 13. a second motor; 14. a fourth motor; 15. a rotating shaft; 16. an electronic screen; 17. a connecting rod; 18. a fifth motor; 19. a nut; 20. an electronic board; 21. a first screw; 22. an indication lever; 23. mounting blocks; 24. a slider; 25. a rope loop; 26. a color rope; 27. a laser sensor; 28. a first motor; 29. a sheave; 30. a motor plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
A display device for economics, as shown in figures 1-4, comprises a base, a display board 7, a controller and two sets of brackets; the two groups of brackets are respectively symmetrical, the fixing frames are arranged at the top of the base, and two ends of the display board 7 are respectively rotatably connected with the two groups of brackets;
as shown in fig. 1, each group of supports specifically comprises a movable support and a rotating device, which are respectively used for angle adjustment and height adjustment; the two groups of moving supports are respectively symmetrical, the fixed frame is arranged at the top of the base, the two groups of rotating devices are symmetrically and respectively arranged on the two groups of moving supports in a sliding manner, and each group of moving supports drives one group of rotating devices to move along the length direction of the moving supports; the two sides of the display board 7 are respectively fixedly connected with the output ends of the two groups of rotating devices and are driven to rotate by the two groups of rotating devices;
specifically, each moving bracket comprises a return frame 4, a second screw 5, a moving block 11 and a second motor 13; the clip 4 is fixedly arranged on the top of the bottom plate 3; the moving block 11 is arranged in the groove of the square-shaped frame 4 in a sliding manner; the second screw 5 penetrates through the moving block 11 and is in threaded fit with the moving block 11, and two ends of the second screw 5 are respectively in rotating connection with the top and the bottom of the square frame 4; the second motor 13 is fixedly arranged at the top of the clip frame 4, and an output shaft of the second motor 13 is in transmission connection with the second screw 5; the second motor 13 is adopted to drive the lead screw to transmit, so that the moving block 11 is driven to move up and down, and the display board 7 is driven to move up and down, so that the height is adjusted;
each group of rotating devices comprises a frame plate 12 and a third motor 10; four corners of the bottom of the frame plate 12 are respectively fixed on one side of the moving block 11 close to the display plate 7 through a supporting rod 9; the third motor 10 is fixedly arranged at the inner side of the frame plate 12, and the output shaft of the third motor 10 passes through the frame plate 12 and is fixedly connected with the side surface of the display plate 7; a third motor 10 is erected on the moving block 11, and the display board 7 can be driven to rotate by driving the third motor 10 to rotate;
secondly, the base comprises a bottom plate 3 and cylinders 2 fixed at four corners of the bottom plate 3; the push rod of each cylinder 2 is fixedly provided with a universal wheel 1, as shown in figure 1, which is convenient for moving and adjusting the height.
The front surface of the display board 7 is a white board, and is provided with strip-shaped through grooves side by side, and each through groove is internally provided with a strip-shaped column structure, as shown in fig. 2; each long bar column structure comprises a first screw 21, a slide block 24 and a nut 19; the slide block 24 is arranged in the groove of the through groove in a sliding manner; the first screw 21 penetrates through the sliding block 24, and two ends of the first screw are respectively in rotating connection with two ends of the through groove and are in threaded fit with the sliding block 24; the nut 19 is arranged at the top of the display board 7, the bottom of the display board is fixedly provided with a rotating shaft, and the rotating shaft penetrates through the display board 7 and is in transmission connection with the first screw 21; when the nut 19 is rotated, the first screw 21 is driven to rotate, the slide block 24 is driven to move up and down, and the up-and-down distance of the slide block 24 is adjusted;
the front of the sliding block 24 is fixedly provided with an installation block 23, one side of the front of the display board 7 is fixedly provided with a vertical baffle 8, and the bottom of the display board is fixedly provided with a transverse baffle 6; scales are carved on one side of the vertical baffle 8; the bottom of the mounting block 23 is fixedly provided with a laser sensor 27; the front surface of the display board 7 is provided with a plurality of electronic boards 20, and each electronic board 20 is arranged above each through groove;
an electronic screen 16 is erected above the display board 7, and the electronic screen 16 and the plurality of laser sensors 27 are electrically connected with the controller; the range of the ordinate is input in the electronic screen 16, the distance measured by each laser sensor 27 is converted into a value of ordinate to be displayed on the electronic board 20, specifically, the value X displayed by the electronic board 20 is:
Figure BDA0002884091480000061
in the formula, amaxThe distance, a, measured by the laser sensor 27 when the slider 24 is moved to the top of the channeltDistance measured in real time by laser sensor 27, bminThe minimum value of the input ordinate in the electronic screen 16 is; bmaxThe maximum value of the input ordinate in the electronic screen 16; the X value is a longitudinal coordinate value of the item of the column diagram or the line diagram, is displayed through the electronic board 20, is more visual, and is more interesting when teaching is carried out through the statistical graph.
In order to facilitate manual adjustment of the height and value of the teacher statistical graph, the device is also provided with an indication rod 22; the indication rod 22 passes through the mounting block 23, is fixedly connected with the mounting block 23 and is in sliding fit with the front surface of the display board 7; the one end of the vertical baffle 8 of indicator rod 22 orientation is provided with visual light emitter, through observing the light column and the scale that corresponds, can carry out statistics figure's height and numerical value relatively conveniently and adjust.
Further, a broken line structure is also included, as shown in fig. 2, 3 and 4; the broken line structure comprises a color rope 26 and a rope collecting device erected on the top of the mounting block 23 at the rightmost end; except that the top of the other rightmost end installation blocks 23 is fixedly provided with a rope ring 25, one end of a color rope 26 is fixedly arranged on the rope ring 25 at the leftmost end, and the other end of the color rope sequentially penetrates through the rope rings 25 and is connected with a rope collecting device.
Specifically, as shown in fig. 4, the rope retracting device includes a first motor 28, a rope pulley 29 and two motor plates 30; the two motor plates 30 are fixedly arranged at the top of the mounting block 23, and two ends of the rope wheel 29 are respectively in rotating connection with the two motor plates 30; the first motor 28 is fixedly arranged on the outer side of the motor plate 30, and an output shaft of the first motor 28 is in transmission connection with the rope pulley 29; the other end of the color rope 26 is fixedly connected with the rope wheel 29, and when the first motor 28 rotates, the rope wheel 29 is driven to rotate, and then the color rope 26 is wound through the rope wheel 29, so that the color rope 26 is loosened or tightened;
when the histogram and the line graph are adjusted, the color rope 26 is loosened, the adjustment is convenient, the interference is not easy to generate, and after the adjustment is finished, the color rope 26 is tightened through the rope winding device, so that the visual line graph is displayed.
In addition, the electronic screen 16 is rotatably erected in front of the display board 7 through a link device, as shown in fig. 1; the connecting rod device comprises a fourth motor 14, a fifth motor 18, a connecting rod 17 and a rotating shaft 15; the fifth motor 18 is fixedly arranged at one end of the connecting rod 17, an output shaft of the fifth motor 18 penetrates through the connecting rod 17 to be rotatably connected with the upper end of one side of the display board 7, and an output shaft of the fifth motor 18 is fixedly connected with the connecting rod 17; the fourth motor 14 is fixedly arranged at the other end of the connecting rod 17, an output shaft of the fourth motor 14 penetrates through the connecting rod 17 and is in transmission connection with one end of the rotating shaft 15, and the other end of the rotating shaft 15 is fixedly connected with one side of the electronic screen 16. Wherein, the fifth motor 18 adjusts the protrusion distance, and the fourth motor 14 adjusts the angle of the electronic screen 16.
In the present embodiment, the first and second electrodes are,
the device adjusts the height of the universal wheel 1 through a plurality of groups of cylinders 2 and moves to a display area;
the height and the angle of the display board 7 are adjusted through the two groups of movable supports and the rotating device, so that the display is convenient; in addition, the display board 7 can be marked and drawn due to the white board;
inputting the vertical coordinate range of the statistical graph to be drawn from the electronic screen 16, and driving the rope winding device to loosen the color rope 26; the movement of the sliding block 24 is realized by adopting a structure of a screw rod sliding block by rotating the nut 19 in each group of strip column structures, and indication is carried out through the indicating rod; the position of the slide block 24 at this time is measured by the laser sensor 27, and calculation is performed according to the input range of the ordinate, and the ordinate indicated by the long-bar column structure is displayed on the corresponding electronic board 20; during adjustment, fine adjustment can be carried out under the assistance of the visible light reflector;
the rope winding device is driven again to tighten the color rope 26, the display of the line graph is completed, and the trend of data can be obtained more intuitively;
in addition, the angle and the front-back distance of the electronic screen 16 are controlled by adopting a connecting rod structure, so that the operation can be performed more conveniently, and the display of picture and character information can also be performed by adopting the electronic screen 16.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A display device for economics is characterized by comprising a base, a display board (7), a controller and two groups of supports; the two groups of the supports are respectively symmetrical, the fixing frames are arranged at two ends of the top of the base, and two ends of the display board (7) are respectively rotatably connected with the two groups of the supports;
the front surface of the display board (7) is a white board, a plurality of strip-shaped through grooves are formed in parallel, and a strip-shaped column structure is arranged in each through groove; each long columnar structure comprises a first screw rod (21), a sliding block (24) and a nut (19); the sliding block (24) is arranged in the through groove in a sliding mode; the first screw (21) penetrates through the sliding block (24), two ends of the first screw are respectively and rotatably connected with two ends of the through groove, and the first screw (21) is in threaded fit with the sliding block (24); the nut (19) is arranged at the top of the display board (7), a rotating shaft is fixedly arranged at the bottom of the display board (7), and the rotating shaft penetrates through the display board (7) and is in transmission connection with the first screw (21);
the front surface of the sliding block (24) is fixedly provided with an installation block (23), one side of the front surface of the display board (7) is fixedly provided with a vertical baffle (8), and the bottom of the display board is fixedly provided with a transverse baffle (6); scales are carved on one side of the vertical baffle (8); a laser sensor (27) is fixedly arranged at the bottom of the mounting block (23); the front surface of the display board (7) is provided with a plurality of electronic boards (20), and each electronic board (20) is arranged above each through groove;
an electronic screen (16) is erected above the display board (7), and the electronic screen (16), the electronic boards (20) and the laser sensor (27) are electrically connected with the controller; the range of the ordinate is input in the electronic screen (16), and the distance measured by each laser sensor (27) is converted into the ordinate value to be displayed on the electronic board (20).
2. Display device for economics according to claim 1 characterized in that the electronic board (20) displays the values X:
Figure FDA0002884091470000011
in the formula, amaxIs the distance measured by the laser sensor (27) when the slide block (24) moves to the top of the through groove, atFor the distance measured in real time by the laser sensor (27), bminThe minimum value of the input vertical coordinate in the electronic screen (16) is as follows; bmaxThe maximum value of the ordinate input in the electronic screen (16) is used.
3. Display device for economics according to claim 1 further comprising an indication lever (22); the indication rod (22) penetrates through the mounting block (23), is fixedly connected with the mounting block (23), and is in sliding fit with the front face of the display board (7); one end of the indicating rod (22) facing the vertical baffle (8) is provided with a visible light emitter.
4. The display for economics of claim 1 further comprising a fold line structure; the broken line structure comprises a color rope (26) and a rope collecting device erected at the top of the mounting block (23) at the rightmost end; except the rightmost end, the top of the mounting block (23) is fixedly provided with a rope ring (25), one end of the colored rope (26) is fixedly arranged on the rope ring (25) at the leftmost end, and the other end of the colored rope sequentially penetrates through the rope rings (25) and is connected with the rope collecting device.
5. Display device for economics according to claim 4 characterized in that the rope take-up device comprises a first motor (28), a rope sheave (29) and two motor plates (30); the two motor plates (30) are fixedly arranged at the top of the mounting block (23), and two ends of the rope wheel (29) are respectively in rotating connection with the two motor plates (30); the first motor (28) is fixedly arranged on the outer side of the motor plate (30), and an output shaft of the first motor (28) is in transmission connection with the rope wheel (29); the other end of the colored rope (26) is fixedly connected with the rope wheel (29).
6. Display device for economics according to claim 1 wherein the base comprises a bottom plate (3) and cylinders (2) fixed at four corners of the bottom plate (3); a push rod of each cylinder (2) is fixedly provided with a universal wheel (1);
each group of supports comprises a movable support and a rotating device; the two groups of moving supports are respectively symmetrical and fixed on the top of the bottom plate (3), the two groups of rotating devices are respectively arranged on the two groups of moving supports in a sliding manner, and each group of moving supports drives one group of rotating devices to move along the length direction of the moving supports; the two sides of the display board (7) are respectively fixedly connected with the output ends of the two groups of rotating devices and are driven to rotate by the two groups of rotating devices.
7. Display device for economics according to claim 6 wherein each moving support comprises a return frame (4), a second screw (5), a moving block (11) and a second motor (13); the shape-returning frame (4) is fixedly arranged at the top of the bottom plate (3); the moving block (11) is arranged in the groove of the return frame (4) in a sliding manner; the second screw (5) penetrates through the moving block (11) and is in threaded fit with the moving block (11), and two ends of the second screw (5) are respectively in rotating connection with the top and the bottom of the return frame (4); the second motor (13) is fixedly arranged at the top of the circular frame (4), and an output shaft of the second motor (13) is in transmission connection with the second screw (5).
8. Display device for economics according to claim 7 wherein each set of rotating means comprises a frame plate (12) and a third motor (10); four corners of the bottom of the frame plate (12) are respectively fixed on one side of the moving block (11) close to the display plate (7) through a support rod (9); the third motor (10) is fixedly arranged on the inner side of the frame plate (12), and an output shaft of the third motor (10) penetrates through the frame plate (12) and is fixedly connected with the side face of the display plate (7).
9. Display device for economics according to claim 1 wherein the electronic screen (16) is pivotally mounted in front of the display board (7) by means of a linkage; the connecting rod device comprises a fourth motor (14), a fifth motor (18), a connecting rod (17) and a rotating shaft (15); the fifth motor (18) is fixedly arranged at one end of the connecting rod (17), an output shaft of the fifth motor (18) penetrates through the connecting rod (17) to be rotatably connected with the upper end of one side of the display board (7), and an output shaft of the fifth motor (18) is fixedly connected with the connecting rod (17); the fourth motor (14) is fixedly arranged at the other end of the connecting rod (17), an output shaft of the fourth motor (14) penetrates through the connecting rod (17) and is in transmission connection with one end of the rotating shaft (15), and the other end of the rotating shaft (15) is fixedly connected with one side of the electronic screen (16).
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