CN114927011B - Multi-type graphic projection demonstration device and demonstration method thereof - Google Patents
Multi-type graphic projection demonstration device and demonstration method thereof Download PDFInfo
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- CN114927011B CN114927011B CN202210591259.2A CN202210591259A CN114927011B CN 114927011 B CN114927011 B CN 114927011B CN 202210591259 A CN202210591259 A CN 202210591259A CN 114927011 B CN114927011 B CN 114927011B
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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
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- 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
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/32—Undercarriages for supports with three or more telescoping legs
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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Abstract
The invention discloses a multi-type graphic projection demonstration device and a demonstration method thereof. According to the invention, the demonstration support is provided with the movable columns to form the demonstration area, when the object to be demonstrated is completely sunk into the demonstration area, the visible area of the object to be demonstrated for projection pushes the corresponding movable column to complete the movement process, and after the movable column leaves the initial position, the demonstration lamp positioned at the center of the end face of the movable column is lightened, so that the visible area of the object to be demonstrated is converted into the lightened area of the demonstration lamp, the attention of the visible area can be improved through the demonstration lamp, the possibility of confusion is eliminated through the movable column to block the invisible area, and an accurate projection demonstration shape is formed, so that the capturing sensitivity of the visible area is cultivated.
Description
Technical Field
The invention relates to the technical field of projection demonstration, in particular to a multi-type graphic projection demonstration device and a demonstration method thereof.
Background
Engineering drawing is a major basic discipline, and has been 200 years old based on projection theory of drawing geometry, with ruler, compass, drawing board as tools, and blackboard, wood pattern, and hanging chart as media. The mechanical engineering drawing is a entering course showing the characteristics of the industry and the department, and is one of professional basic courses which must be learned by students of the industry and the department. Plays an important role in cultivating the space imagination and conception ability of students as the basis of creative thinking, promoting the industrialization process and the like. Engineering drawings are indispensable technical documents in production, and are universal worldwide 'engineering language'. Drawing and reading engineering drawings in correct specifications are essential basic qualities for engineering technicians.
The engineering drawing mainly comprises the following modules: drawing basic knowledge: including drawing standards, drawing plan views. Drawing basic skills: including ruler-compass drawings, freehand drawings, and computer drawings. Basic theory: including drawing geometry and related pictorial theory. Pattern expression basis: including projection mapping and pattern expression methods of objects. Parts drawing, assembly drawing, drawing and the like.
For projection drawing, how to convert three-dimensional entities into two-dimensional planes is the most difficult, and through questionnaires and corresponding ergonomic analysis, the brain of a person is most easily confused by a non-visible area of a to-be-projected demonstration object in the conversion process, or the visible area of the to-be-projected demonstration object is not enough to be attractive;
the current projection demonstration technology is as follows: 1) The flexible traction straight line two-sided projection demonstration board with the space model of application number 201611134918.0 adopts a structure of a space straight line model mechanism and straight line projection linkage, in particular adopts a structure of two fixed-length line pipes and a movable closed line rope in the line pipes, and more intuitively shows the relation between the position change of the space straight line and the change of the projection of the space straight line. The operation is convenient, and only the front projection of the moving point is controlled, the horizontal projection and the side projection of the moving point are automatically pulled, so that 7 positions of a straight line can be swung out; 2) The projection demonstration device for the engineering drawing model has the application number of 2016610887894. X, and the projection demonstration device is used for tensioning and fixing an object to be projected through a thin line and a sliding table, so that the position of a space geometric element of the object to be projected is kept unchanged, and the rotation motion of a stepping motor around a shaft is converted into the rotation motion of a projection mechanism through a worm gear mechanism, so that projection surfaces at different space positions are generated, the purpose of replacing an old projection surface with a new projection surface is realized, the relative position of the space geometric element to the new projection surface is changed into a position which is favorable for intuitively and accurately expressing the geometric shape of the object to be projected, then the projection of the space geometric element on the new projection surface is found, and finally, the surface changing method is realized.
After analysis of the prior art described above, the following conclusion is drawn: in the prior art, the space position of the projection surface is changed, so that the effect of surface changing projection is achieved while the projection of different views is realized; but none of them solves the problem that the brain is easily confused by the non-viewable area of the presentation to be projected and the viewable area of the presentation to be projected is not sufficiently attractive.
Disclosure of Invention
The invention aims to provide a multi-type graphic projection demonstration device and a demonstration method thereof, which enable a visible area of an object to be demonstrated to be changed into a lighting area of a demonstration lamp through a movable column and the demonstration lamp, further improve the attention of the visible area through the demonstration lamp, and block a non-visible area through the movable column to eliminate the possibility of confusion, thereby forming an accurate projection demonstration shape so as to cultivate the capturing sensitivity of the visible area.
In order to achieve the above purpose, the invention provides a multi-type graphic projection demonstration device, which comprises a base, a demonstration mechanism and a display mechanism, wherein the demonstration mechanism and the display mechanism are arranged on the base, the demonstration mechanism comprises a demonstration bracket, movable columns and an electromagnetic adsorption assembly, and the movable columns are arranged on the demonstration bracket in an array shape and form a demonstration area; the demonstration support is provided with a plurality of through holes corresponding to each movable column, the electromagnetic adsorption assembly comprises an electromagnetic generation part and an electromagnetic adsorption part which are matched for use and are of annular structures, the electromagnetic generation part is arranged in the through holes, the electromagnetic adsorption part is arranged at one end of the movable column close to a viewer, a demonstration lamp is arranged at the center position of the end face of the end, when an object to be demonstrated pushes the corresponding movable column to move, the corresponding demonstration lamp is lightened, and when the electromagnetic generation part adsorbs the electromagnetic adsorption part to reset, the demonstration lamp is turned off; the display mechanism comprises a display screen arranged beside the demonstration frame, and the display screen displays a first projection demonstration shape of the lighting area of the demonstration lamp.
Preferably, the base comprises an adjustable rectangular body, a horizontal corrector is arranged on the rectangular body, the horizontal corrector comprises two levels, the levels are respectively arranged on adjacent side edges of the rectangular body, and when the two levels are in a horizontal state, the rectangular body is in a horizontal state, and then the adjustment is stopped.
Preferably, the lower surface of the rectangular body is provided with a lifting assembly, the lifting assembly comprises lifting cylinders respectively arranged at four corners of the rectangular body, and when the level gauge is in a non-horizontal state, the corresponding lifting cylinders are started to be adjusted.
Preferably, the demonstration support is provided with a switch group, the switch group comprises an electromagnetic start-stop button, a horizontal adjusting button and a display start-stop button, the electromagnetic start-stop button is electrically connected with the electromagnetic generating part, the horizontal adjusting button is electrically connected with the lifting cylinder, and the display start-stop button is electrically connected with the display screen.
Preferably, two end parts of the movable column are provided with anti-falling limiting parts, and the limiting parts can be lapped on the annular structure of the electromagnetic generating part.
Preferably, each electromagnetic adsorption part is provided with a displacement sensor, the equal movable columns in each displacement value selected from the first projection demonstration shape are determined to be a second projection demonstration shape, the precision of the second projection demonstration shape is higher than that of the first projection demonstration shape, and the second projection demonstration shape is displayed in the display screen.
Preferably, the display screen is of a rectangular structure, the lower part of the rectangular structure is an initial display area, the upper part of the rectangular structure is a circulating display area, the first projection display shape or the second projection display shape after projection demonstration is displayed in the initial display area, and then a plurality of first projection display shapes or second projection display shapes are sequentially displayed in a rolling manner in the circulating display area according to a projection sequence.
Preferably, the diameter of the movable column is 5mm to 10mm.
The invention also provides a multi-type graphic projection demonstration method, which comprises the following steps:
preparation: starting a power supply, pressing a horizontal adjusting button, starting a lifting cylinder in a lifting assembly, and adjusting a base to be in a horizontal state; pressing an electromagnetic start-stop button in the demonstration mechanism, starting an electromagnetic adsorption assembly, wherein an electromagnetic generation part in the electromagnetic adsorption assembly adsorbs the electromagnetic adsorption part, adjusting all movable columns to an initial position, and closing the electromagnetic generation part; pressing a display start button and starting a display screen; projection demonstration work: pressing an object to be demonstrated in a demonstration area on a demonstration support, and pushing the movable column by using a surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column which is not moved; along with the pushing of the movable column, a demonstration lamp on the movable column is lightened; the display screen displays a first projection demonstration shape of the demonstration lamp lighting area;
resetting: pressing the electromagnetic start-stop button, wherein the electromagnetic generating part adsorbs the electromagnetic adsorption part, all the movable columns are adjusted to an initial position, and the demonstration lamp is turned off; the electromagnetic generating part and the display screen are both closed.
Preferably, the displacement value detected by the displacement sensor on each electromagnetic adsorption part is transmitted to an industrial personal computer, the industrial personal computer selects the movable columns with equal displacement values, optimizes the first projection demonstration shape into the second projection demonstration shape through the position information of the corresponding movable column, and displays the second projection demonstration shape in the display screen.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the demonstration support is provided with the movable columns to form the demonstration area, when an object to be demonstrated is completely sunk into the demonstration area, the visible area of the object to be demonstrated for projection pushes the corresponding movable column to complete the movement process, and after the movable column leaves the initial position, the demonstration lamp positioned at the center of the end face of the movable column is lightened, so that the visible area of the object to be demonstrated is converted into the lightened area of the demonstration lamp, the attention of the visible area can be improved through the demonstration lamp, the possibility of confusion is eliminated through the movable column to block the invisible area, and an accurate projection demonstration shape is formed, so that the capturing sensitivity of the visible area is cultivated; furthermore, in order to facilitate continuous use of the movable columns, an electromagnetic adsorption part is arranged on each movable column, an electromagnetic generation part for adsorbing the electromagnetic adsorption part is arranged on the demonstration support correspondingly, the electromagnetic generation part is electrified after projection demonstration is finished, and the movable columns are adjusted to an initial position through the electromagnetic adsorption part.
2. According to the invention, the level gauges are respectively arranged on the adjacent edges of the base, and the principle that two horizontal intersecting straight lines can determine a horizontal plane is utilized to ensure that the base is in a horizontal state. Further, in order to be convenient for adjust the base to the horizontality, adopt the mode at base four corners setting lift cylinder, can provide horizontal information according to the spirit level, the corresponding lift cylinder of automatic adjustment accomplishes the level adjustment work fast.
3. In the invention, each electromagnetic adsorption part is provided with a displacement sensor to determine the moving distance of the movable column, and when the visible area is a plane, the moving distance of each movable column in plane projection is equal, so that equal movable columns in each displacement value are selected from the first projection demonstration shape to determine the second projection demonstration shape, and the problem that a small amount of movement is generated by the movable columns which do not belong to the projection demonstration shape due to misoperation and the like is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-type graphic projection presentation apparatus according to the present invention;
FIG. 2 is a rear view (without a display screen) of FIG. 1;
FIG. 3 is a schematic view of the structure of the movable column;
FIG. 4 is a schematic view of the movable column of FIG. 1;
FIG. 5 is a schematic diagram of the electromagnetic generating unit in FIG. 4;
the device comprises a base 1, a demonstration support 2, a movable column 3, an electromagnetic generating part 4, an electromagnetic adsorption part 5, a demonstration lamp 6, a display screen 7, a level meter 8, a lifting cylinder 9, an electromagnetic opening and closing button 10, a level adjusting button 11 and a display opening and closing button 12.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 5, the present invention provides a multi-type graphic projection demonstration device, which comprises a base 1, and a demonstration mechanism and a display mechanism mounted on the base 1, wherein the demonstration mechanism comprises a demonstration bracket 2, movable columns 3 and an electromagnetic adsorption assembly, and the movable columns 3 are arranged on the demonstration bracket 2 in an array shape and form a demonstration area; the demonstration bracket 2 is provided with a plurality of through holes corresponding to each movable column 3, the electromagnetic adsorption component comprises an electromagnetic generation part 4 and an electromagnetic adsorption part 5 which are matched for use and are all in a ring-shaped structure, the electromagnetic generation part 4 is arranged in the through holes, the electromagnetic adsorption part 5 is arranged at one end of the movable column 3 close to a viewer, a demonstration lamp 6 is arranged at the center position of the end face of the end, when a to-be-demonstrated object pushes the corresponding movable column 3 to move, the corresponding demonstration lamp 6 is lightened, and when the electromagnetic generation part 4 adsorbs the electromagnetic adsorption part 5 to reset, the demonstration lamp 6 is turned off; the display mechanism comprises a display screen 7 arranged beside the demonstration shelf, and the display screen 7 displays a first projection demonstration shape of the lighting area of the demonstration lamp 6. The base 1 can be kept in a horizontal state or in a relative horizontal state, and depending on a clearance value between the outer surface of the movable column 3 and the inner surface of the annular structure of the electromagnetic generating part 4, the smaller the clearance value is, the less easy the movable column 3 is to be pushed, at this time, even if the base 1 is not completely horizontal, the phenomenon that the movable column 3 moves automatically is not caused, otherwise, the greater the clearance value is, the easier the movable column 3 is to be pushed, at this time, the base 1 is required to be in a completely horizontal state, so that the movable column 3 can be ensured to move correspondingly only by the pushing force of an object to be demonstrated, and the moving (sliding) cannot be caused by itself; the shape of the demonstration area can be rectangular, circular or other shapes, and the demonstration area can be selected according to actual needs; the electromagnetic generating part 4 is of an electromagnet structure, the circuit of the electromagnetic generating part is connected with a power supply point through a wire slot arranged in the demonstration bracket 2, and the electromagnetic adsorbing part 5 is of adsorbable metal or a magnet with adsorbable magnetic poles; the on-off of the demonstration lamp 6 can be realized by arranging a structure which is switched on when separated in the prior art, such as a deformable metal connecting sheet, when the movable column 3 is at the initial position, the metal connecting sheet is broken, and when the movable column 3 moves, the metal connecting sheet recovers the deformation conduction circuit, so that the structure is quite a lot and is not described herein;
the working process of the technical scheme is as follows:
preparation: starting a power supply and adjusting the base 1 to be in a horizontal state; starting an electromagnetic adsorption assembly, wherein an electromagnetic generation part 4 in the electromagnetic adsorption assembly adsorbs an electromagnetic adsorption part 5, adjusting all movable columns 3 to an initial position, and closing the electromagnetic generation part 4; starting the display screen 7;
projection demonstration work: pressing the object to be demonstrated on the demonstration area of the demonstration bracket 2, and pushing the movable column 3 by using the surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column 3 which is not moved; along with the pushing of the movable column 3, the demonstration lamp 6 on the movable column 3 is lightened; the position information of the movable column 3 is transmitted to a display screen 7 for display, or an image formed by the demonstration lamps 6 after the movable column 3 moves is acquired through other external-emission equipment, and the image is transmitted to the display screen 7 for display, namely the display screen 7 displays a first projection demonstration shape of the lighting area of the demonstration lamps 6;
resetting: starting the electromagnetic adsorption assembly again, allowing the electromagnetic generation part 4 to adsorb the electromagnetic adsorption part 5, adjusting all the movable columns 3 to the initial position, and turning off the demonstration lamp 6; both the electromagnetic generating section 4 and the display screen 7 are turned off.
Namely, in the invention, a plurality of movable columns 3 are arranged on a demonstration bracket 2 to form a demonstration area, when an object to be demonstrated is completely sunk into the demonstration area, a visible area of the object to be demonstrated for projection pushes the corresponding movable column 3 to complete a movement process, and after the movable column 3 leaves an initial position, a demonstration lamp 6 positioned at the center of the end face of the movable column 3 is lightened, so that the visible area of the object to be demonstrated is converted into a lightened area of the demonstration lamp 6, thereby improving the attention of the visible area through the demonstration lamp 6, eliminating the possibility of confusion by blocking a non-visible area through the movable column 3, forming an accurate projection demonstration shape, and culturing the capturing sensitivity of the visible area; further, in order to facilitate the continuous use of the movable columns 3, in the present invention, an electromagnetic adsorption portion 5 is provided on each movable column 3, and accordingly, an electromagnetic generation portion 4 for adsorbing the electromagnetic adsorption portion 5 is provided on the demonstration stand 2, and after the projection demonstration is completed, the electromagnetic generation portion 4 is energized, and the movable columns 3 are adjusted to the initial position by adsorbing the electromagnetic adsorption portion 5.
In order to accurately determine the level of the base 1, the base 1 in the invention comprises an adjustable rectangular body, of course, the rectangular body can also have other shapes, such as triangle, trapezoid and the like, as long as adjacent sides exist, a level corrector is arranged on the rectangular body, the level corrector comprises two levels 8, the levels 8 are respectively arranged on the adjacent sides of the rectangular body, when the two levels 8 are in a horizontal state, the rectangular body is in a horizontal state, and the adjustment is stopped; namely, in the invention, the adjacent edges of the base 1 are respectively provided with the level meter 8, and the base 1 is ensured to be in a horizontal state by utilizing the principle that two horizontal intersecting straight lines can determine a horizontal plane.
The lower surface of the rectangular body is provided with the lifting assembly, the lifting assembly comprises lifting cylinders 9 which are respectively arranged at four corners of the rectangular body, and when the level gauge 8 is in a non-horizontal state, the corresponding lifting cylinders 9 are started to be adjusted; that is, in order to facilitate adjusting the base 1 to a horizontal state, the lifting air cylinders 9 are arranged at four corners of the base 1, so that horizontal information can be provided according to the level meter 8, and the corresponding lifting air cylinders 9 can be automatically adjusted to quickly complete horizontal adjustment.
In order to limit the moving distance of the movable column 3, two end parts of the movable column 3 are provided with anti-falling limiting parts (not shown in the figure), and the limiting parts can be lapped on the annular structure of the electromagnetic generating part 4.
In order to optimize the first projection demonstration shape, each electromagnetic adsorption part 5 is provided with a displacement sensor, the equal movable columns 3 in each displacement value selected from the first projection demonstration shape are determined to be a second projection demonstration shape, the precision of the second projection demonstration shape is higher than that of the first projection demonstration shape, and the second projection demonstration shape is displayed in the display screen 7. That is, in the present invention, each electromagnetic adsorption portion 5 is provided with a displacement sensor to determine the moving distance of the movable column 3, and when the visible area is a plane, since the moving distances of the movable columns 3 in the plane projection should be equal, the movable columns 3 with equal displacement values in the first projection demonstration shape are selected to determine the second projection demonstration shape, so that the problem that a small amount of movement is generated by the movable columns 3 which do not belong to the projection demonstration shape due to misoperation and other reasons is avoided. For the situation that the visual area is non-planar, each displacement value can be divided into different sections, such as a certain number of lowest displacement values, a small number of highest displacement values and a plurality of middle displacement values, so as to adapt to the non-planar special-shaped structure.
As a specific embodiment, the display screen 7 in the present invention has a rectangular structure, the lower part of the rectangular structure is an initial display area, the upper part is a cyclic display area, the first projection display shape or the second projection display shape after the projection demonstration is displayed in the initial display area, and then a plurality of first projection display shapes or second projection display shapes are sequentially displayed in a rolling manner in the cyclic display area according to the projection sequence.
As a specific embodiment, the demonstration bracket 2 is provided with a switch group, the switch group comprises an electromagnetic start-stop button 10, a horizontal adjusting button 11 and a display start-stop button 12, the electromagnetic start-stop button 10 is electrically connected with the electromagnetic generating part 4, the horizontal adjusting button 11 is electrically connected with the lifting cylinder 9, and the display start-stop button 12 is electrically connected with the display screen 7.
As a specific embodiment, the movable column 3 in the present invention has a diameter of 5mm to 10mm.
The invention also provides a multi-type graphic projection demonstration method, which comprises the following steps:
preparation: starting a power supply, pressing a horizontal adjusting button 11, starting a lifting cylinder 9 in a lifting assembly, and adjusting the base 1 to be in a horizontal state; pressing an electromagnetic start-stop button 10 in the demonstration mechanism, starting an electromagnetic adsorption assembly, enabling an electromagnetic generation part 4 in the electromagnetic adsorption assembly to adsorb an electromagnetic adsorption part 5, adjusting all movable columns 3 to an initial position, and closing the electromagnetic generation part 4; pressing the display start-stop button 12 to start the display screen 7; projection demonstration work: pressing the object to be demonstrated on the demonstration area of the demonstration bracket 2, and pushing the movable column 3 by using the surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column 3 which is not moved; along with the pushing of the movable column 3, the demonstration lamp 6 on the movable column 3 is lightened; the display screen 7 displays a first projection demonstration shape of the lighting area of the demonstration lamp 6;
resetting: pressing the electromagnetic start-stop button 10, the electromagnetic generating part 4 adsorbs the electromagnetic adsorption part 5, all the movable columns 3 are adjusted to the initial position, and the demonstration lamp 6 is turned off; both the electromagnetic generating section 4 and the display screen 7 are turned off.
According to the invention, the displacement value detected by the displacement sensor on each electromagnetic adsorption part 5 is transmitted to the industrial personal computer, the industrial personal computer selects the movable columns 3 with equal displacement values, optimizes the first projection demonstration shape into the second projection demonstration shape through the position information of the corresponding movable column 3, and displays the second projection demonstration shape in the display screen 7.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (7)
1. The multi-type graphic projection demonstration device is characterized by comprising a base, a demonstration mechanism and a display mechanism, wherein the demonstration mechanism and the display mechanism are arranged on the base, the demonstration mechanism comprises a demonstration bracket, movable columns and an electromagnetic adsorption assembly, and the movable columns are arranged on the demonstration bracket in an array manner and form a demonstration area; the demonstration support is provided with a plurality of through holes corresponding to each movable column, the electromagnetic adsorption assembly comprises an electromagnetic generation part and an electromagnetic adsorption part which are matched for use and are of annular structures, the electromagnetic generation part is arranged in the through holes, the electromagnetic adsorption part is arranged at one end of the movable column close to a viewer, a demonstration lamp is arranged at the center position of the end face of the end, when an object to be demonstrated pushes the corresponding movable column to move, the corresponding demonstration lamp is lightened, and when the electromagnetic generation part adsorbs the electromagnetic adsorption part to reset, the demonstration lamp is turned off; the display mechanism comprises a display screen arranged beside the demonstration bracket, and the display screen displays a first projection demonstration shape of the lighting area of the demonstration lamp;
each electromagnetic adsorption part is provided with a displacement sensor, equal movable columns in each displacement value are selected from the first projection demonstration shape to determine a second projection demonstration shape, the precision of the second projection demonstration shape is higher than that of the first projection demonstration shape, and the second projection demonstration shape is displayed in the display screen;
the working process of the multi-type graphic projection demonstration device is as follows:
preparation: starting a power supply, pressing a horizontal adjusting button, starting a lifting cylinder in a lifting assembly, and adjusting a base to be in a horizontal state; pressing an electromagnetic start-stop button in the demonstration mechanism, starting an electromagnetic adsorption assembly, wherein an electromagnetic generation part in the electromagnetic adsorption assembly adsorbs the electromagnetic adsorption part, adjusting all movable columns to an initial position, and closing the electromagnetic generation part; pressing a display start button and starting a display screen;
projection demonstration work: pressing an object to be demonstrated in a demonstration area on a demonstration support, and pushing the movable column by using a surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column which is not moved; along with the pushing of the movable column, a demonstration lamp on the movable column is lightened; the display screen displays a first projection demonstration shape of the demonstration lamp lighting area; transmitting the displacement value detected by the displacement sensor on each electromagnetic adsorption part to an industrial personal computer, wherein the industrial personal computer selects the movable columns with equal displacement values, optimizes a first projection demonstration shape into a second projection demonstration shape through the position information of the corresponding movable column, and displays the second projection demonstration shape in the display screen;
resetting: pressing the electromagnetic start-stop button, wherein the electromagnetic generating part adsorbs the electromagnetic adsorption part, all the movable columns are adjusted to an initial position, and the demonstration lamp is turned off; the electromagnetic generating part and the display screen are both closed.
2. A multi-type graphic projection presentation device as claimed in claim 1, wherein: the base includes adjustable rectangle body, be provided with the level unscrambler on the rectangle body, the level unscrambler includes two spirit levels, the spirit level sets up respectively the adjacent side of rectangle body, when two the spirit level is in the horizontality, the rectangle body is in the horizontality, then stops to adjust.
3. A multi-type graphic projection presentation device as claimed in claim 2, wherein: the lifting assembly comprises lifting cylinders respectively arranged at four corners of the rectangular body, and when the level gauge is in a non-horizontal state, the lifting cylinders are correspondingly started to be adjusted.
4. A multi-type graphic projection presentation device as claimed in claim 3, wherein: the demonstration support is provided with a switch group, the switch group comprises an electromagnetic start-stop button, a horizontal adjusting button and a display start-stop button, the electromagnetic start-stop button is electrically connected with the electromagnetic generating part, the horizontal adjusting button is electrically connected with the lifting cylinder, and the display start-stop button is electrically connected with the display screen.
5. A multi-type graphic projection presentation device as claimed in claim 1, wherein: the two end parts of the movable column are provided with anti-falling limiting parts, and the limiting parts can be lapped on the annular structure of the electromagnetic generating part.
6. A multi-type graphic projection presentation device as claimed in claim 1, wherein: the display screen is of a rectangular structure, the lower part of the rectangular structure is an initial display area, the upper part of the rectangular structure is a circulating display area, the first projection display shape or the second projection display shape after projection demonstration is displayed in the initial display area, and then a plurality of first projection display shapes or second projection display shapes are sequentially displayed in the circulating display area in a rolling mode according to the projection sequence.
7. The multi-type graphic projection presentation apparatus according to claim 6, wherein: the diameter of the movable column is 5mm to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210591259.2A CN114927011B (en) | 2022-05-27 | 2022-05-27 | Multi-type graphic projection demonstration device and demonstration method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210591259.2A CN114927011B (en) | 2022-05-27 | 2022-05-27 | Multi-type graphic projection demonstration device and demonstration method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114927011A CN114927011A (en) | 2022-08-19 |
| CN114927011B true CN114927011B (en) | 2024-03-22 |
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