CN119087731A - A convenient projection portable rotating starry sky demonstrator - Google Patents
A convenient projection portable rotating starry sky demonstrator Download PDFInfo
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- CN119087731A CN119087731A CN202411381755.0A CN202411381755A CN119087731A CN 119087731 A CN119087731 A CN 119087731A CN 202411381755 A CN202411381755 A CN 202411381755A CN 119087731 A CN119087731 A CN 119087731A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/08—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier
- G03B23/10—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier
- G03B23/105—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier disc carriers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/14—Carriers operable to move pictures into, and out of, the projection or viewing position and carrying one or two pictures only in a removable manner also other devices not provided with a stock, e.g. chutes
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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
- G09B27/00—Planetaria; Globes
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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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Astronomy & Astrophysics (AREA)
- Projection Apparatus (AREA)
Abstract
本发明公开了一种方便使用的投影式便携型旋转星空演示仪，涉及投影演示仪技术领域，包括底板，所述底板底部边角处均固定连接有第一立柱，多个所述第一立柱上端面之间均固定连接有第一隔板，所述第一隔板顶部边缘处均固定连接有第二立柱，多个所述第二立柱上端面之间固定连接有第二隔板，所述第二隔板顶部固定连接有多个第三立柱。本发明中，演示仪通过第一电机与第二电机配合简单的机械结构进行驱动运转，即可完整的投影演示出运动状态的天体变化影像，且演示的星空运动方向和实际星空运动方向一致，解决了教科书上星空运动方向和实际运动方向难以融合的问题，减轻了老师的教学压力，激发了学生的学习兴趣，提高了学习效率。
The present invention discloses a portable and easy-to-use projection-type rotating starry sky demonstrator, which relates to the technical field of projection demonstrator, and comprises a bottom plate, wherein first columns are fixedly connected at the bottom corners of the bottom plate, a plurality of first partitions are fixedly connected between the upper end surfaces of the first columns, a second column is fixedly connected at the top edge of the first partition, a plurality of second partitions are fixedly connected between the upper end surfaces of the second columns, and a plurality of third columns are fixedly connected on the top of the second partition. In the present invention, the demonstrator is driven and operated by a first motor and a second motor in conjunction with a simple mechanical structure, so as to fully project and demonstrate the changing images of celestial bodies in motion, and the demonstrated starry sky motion direction is consistent with the actual starry sky motion direction, which solves the problem that the starry sky motion direction in the textbook and the actual motion direction are difficult to integrate, reduces the teaching pressure of teachers, stimulates students' learning interest, and improves learning efficiency.
Description
Technical Field
The invention relates to the technical field of projection demonstrators, in particular to a convenient-to-use projection type portable rotary star sky demonstration instrument.
Background
A projector is a device that projects an image or video onto a screen, which uses the principle of lenticular imaging to project a transparent object onto the screen to form an enlarged image.
In the prior art, when teaching work is performed, teaching contents of a starry sky operation principle are required to be developed, however, the conventional starry sky principle demonstration equipment is relatively expensive and is difficult to be equipped to each classroom for teaching, so that a teacher can only explain students by referring to pictures on books, and for picture demonstration on books, the students are difficult to imagine a state of starry sky change according to monotone teaching pictures, and a lot of inconvenience is brought to the teaching work of the teacher.
Therefore, we propose a convenient-to-use projection type portable rotary star field demonstration instrument so as to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a projection type portable rotary starry sky demonstration instrument which is convenient to use, so as to solve the problem that students in the background art hardly imagine a state of starry sky change according to monotone teaching pictures, and bring much inconvenience to teaching work of teachers.
The portable projection type rotary starry sky demonstration instrument comprises a base plate and a lantern ring, wherein the corners of the bottom of the base plate are fixedly connected with first upright posts, a plurality of first upright posts are fixedly connected with first gears, the edges of the tops of the first upright posts are fixedly connected with second upright posts, a plurality of second upright posts are fixedly connected with second separators, the tops of the second separators are fixedly connected with third upright posts, a plurality of third separators are fixedly connected with third separators, the bottoms of the second separators are fixedly connected with a first motor, the output ends of the first motor penetrate through the second separators and extend to the upper side, the output ends of the first motor are fixedly connected with first rotating shafts, the upper end faces of the first rotating shafts are fixedly connected with second gears, the tops of the second separators are fixedly connected with supporting shafts, the tops of the supporting shafts are fixedly connected with second gears, the tops of the second gears are fixedly connected with rotary discs, the tops of the rotary discs are uniformly connected with first lens holders, the top of the rotary lens holders are fixedly connected with a lens holder, the top of the rotary lens holder is fixedly connected with a top plate, and the top of the lens holder is fixedly connected with a top plate of a projection lens.
Preferably, the second partition plate top is provided with an avoidance groove, the optical lens is located at the position inside the avoidance groove, and the optical lens top is located at the position above the second partition plate.
Preferably, a plurality of through holes are uniformly formed in the top of the turntable, the through holes are matched with the positions of the rotary projection sheet seat, and the optical lens is matched with the rotary path of the rotary projection sheet seat.
Preferably, the second gear is meshed with the first gear, the thickness of the first gear is smaller than that of the second gear, and the first gear is located at the lower side of the turntable.
Preferably, the top of the third partition plate is fixedly connected with a second motor, the output end of the second motor penetrates through the third partition plate and extends to the lower side, the output end of the second motor is fixedly connected with a second rotating shaft, and the lower end face of the second rotating shaft is fixedly connected with a fourth gear.
Preferably, the rotary table top is rotationally connected with a rotary seat, the rotary seat top is fixedly connected with a sixth gear, the sixth gear top is fixedly connected with a fifth gear, and the fifth gear is meshed with the fourth gear.
Preferably, the outer surfaces of the rotary projection sheet seats are fixedly connected with third gears, the third gears are uniformly distributed at the outer side of the sixth gears, and the third gears are in meshed connection with the sixth gears.
Preferably, the top of the bottom plate is symmetrically and fixedly connected with radiating fans, the top of the bottom plate is fixedly connected with radiating fins, and the radiating fins are positioned between the two radiating fans.
Preferably, the heat dissipation fins are matched with the optical lens in position, a heat conduction pad is arranged at the top of each heat dissipation fin, and the top of each heat conduction pad is attached to the bottom of the first partition plate.
Preferably, the remote control board is fixedly connected with at third baffle top, roof top fixedly connected with control panel, roof top fixedly connected with control button, control button is supporting setting with control panel, control panel and remote control board electric connection, the lantern ring is located optical lens seat outside position, lantern ring surface fixedly connected with side piece, side piece top fixedly connected with positioning seat, positioning seat top fixedly connected with threaded rod, the threaded rod surface sets up the turning block, turning block surface fixedly connected with separation blade, threaded rod surface threaded connection has the nut, the nut is located turning block upside position, the separation blade is located optical lens seat upside position.
Compared with the prior art, the invention has the beneficial effects that:
1. When the projection demonstration instrument is used, when the rotary projection film seat is placed in the focus of the optical lens, an upright amplified real image is formed above the optical lens, as the turntable is in a rotating state under the drive of the first motor, the rotary projection film seats respectively correspond to images of different stages of star change, the rotary projection film seat is switched to carry out star change stage demonstration, the second motor can drive the rotary projection film seat to rotate, the rotary projection film seat is also in a rotating state when the rotary projection film seats are in a rotating switching state, the projection demonstrated by the rotary projection film seat is in a rotating state simulating star sky operation, the demonstration instrument is driven to operate through the first motor and the second motor in a simple mechanical structure, so that the celestial body change image of the motion state can be completely demonstrated in a projection mode, the demonstrating star sky operation direction is consistent with the actual star sky operation direction, the problem that the directions on a textbook are difficult to be fused is solved, the teaching pressure of a teacher is lightened, and the student is easy and efficient learning efficiency is brought.
2. When the demonstration instrument operates, the heat conducting pad with certain elasticity is filled at the position between the first partition plate and the radiating fins, namely, heat generated by the operation of the optical lens can be efficiently conducted through the use of the heat conducting pad, after the heat is conducted to the positions of the radiating fins, the heat radiating efficiency of the demonstration instrument is improved by utilizing the arrangement of the large contact area between the radiating fins and air and matching with the operation of the radiating fan.
3. Through the cooperation of control button, control panel and remote control board, can control first motor and second motor respectively, through the different rotational speed adjustment to first motor and second motor, can realize multiple projection effect.
4. When the lantern ring is positioned at the outer side of the optical lens seat, the optical lens seat is in a normal use state, the rotating block is provided with support through the cooperation of the side block, the positioning seat and the threaded rod, the rotating block can drive the baffle to rotate freely, the baffle can rotate to a position covering the upper side of the optical lens seat, the nut can be screwed to clamp and fix the position of the rotating block, at the moment, the optical lens seat can be covered through the arrangement of the small grooves on the surface of the baffle, and after the covering is completed, the starry sky of the sight distance can be simulated, namely, the starry sky state seen by eyes on different dates can be simulated.
Drawings
FIG. 1 is a perspective view of a portable projection type rotary starry sky demonstration instrument of the present invention;
FIG. 2 is a front view of a portable projection type rotary starry sky demonstration instrument of the present invention for convenient use;
FIG. 3 is a schematic view showing the internal structure of a portable projection type rotary star field demonstrator for convenient use;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a front view of the internal structure of a portable projection type rotary starry sky demonstration instrument for convenient use;
FIG. 6 is an enlarged view of the structure at B in FIG. 5;
fig. 7 is a schematic view of a collar structure of a portable projection type rotary star field demonstrator for convenient use.
In the figure:
1. Bottom plate, 2, first upright post, 3, first baffle, 4, second upright post, 5, second baffle, 6, third upright post, 7, third baffle, 9, first motor, 10, first rotating shaft, 11, first gear, 12, supporting shaft, 13, second gear, 14, rotating disc, 15, rotary projection sheet seat, 16, third gear, 17, second motor, 18, second rotating shaft, 19, fourth gear, 20, fifth gear, 21, sixth gear, 22, rotating seat, 23, radiator fan, 24, radiator fin, 25, heat conducting pad, 26, optical lens, 27, remote control plate, 28, top plate, 29, shell, 30, control panel, 31, control button, 32, optical focusing lens seat, 33, optical lens fixing ring, 34, optical lens, 35, lantern ring, 36, side block, 37, positioning seat, 38, threaded rod, 39, rotating block, 40, nut, 41, baffle sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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.
Referring to fig. 1 to 7, the present invention provides the following technical solutions: the utility model provides a portable rotatory starry sky demonstrates appearance of projection that facilitates use, including bottom plate 1, the equal fixedly connected with first stand 2 of bottom plate 1 bottom corner department, equal fixedly connected with first baffle 3 between the up end of a plurality of first stands 2, the equal fixedly connected with second stand 4 of first baffle 3 top edge, fixedly connected with second baffle 5 between a plurality of second stand 4 up end, second baffle 5 top fixedly connected with a plurality of third stands 6, fixedly connected with third baffle 7 between a plurality of third stand 6 up end, second baffle 5 bottom fixedly connected with first motor 9, first motor 9 output runs through second baffle 5 and extends to the upside, first motor 9 output fixedly connected with first pivot 10, first pivot 10 up end fixedly connected with first gear 11, second baffle 5 top fixedly connected with back shaft 12, back shaft 12 up end fixedly connected with second gear 13, second gear 13 top fixedly connected with carousel 14, a plurality of rotatory lens holder 15 are evenly rotated at the top, first baffle 3 top fixedly connected with first baffle top, first lens holder 29, first lens holder 32 fixedly connected with film optical lens holder, lens holder 32 is set up end fixed at the top of first baffle 3, lens holder 33 fixedly connected with top optical lens holder 32, lens holder 32 is arranged at the top of first baffle 3, lens holder top is fixedly connected with top of first lens holder, lens holder 32 is fixedly connected with top of optical lens holder 32.
As shown in fig. 3 and 4, the top of the second partition board 5 is provided with a avoidance groove, the optical lens 26 is located at the inner side of the avoidance groove, the top of the optical lens 26 is located at the upper side of the second partition board 5, when the optical lens 26 is running, the rotary projection lens holder 15 is placed in the focal point of the optical lens 26, an upright amplified real image is formed above the optical lens 26, and meanwhile, the use of the top optical focusing lens holder 32, the optical lens fixing ring 33 and the optical lens holder 34 is matched, so that the image corresponding to the rotary projection lens holder 15 can be put on a classroom roof to achieve the demonstration purpose.
As shown in fig. 3 and fig. 4, a plurality of through holes are uniformly formed in the top of the turntable 14, the through holes are matched with the positions of the rotary projection lens seats 15, the optical lens 26 is matched with the rotary path of the rotary projection lens seats 15, and when the turntable 14 rotates, the plurality of rotary projection lens seats 15 sequentially move to the positions above the optical lens 26 in sequence, and at the moment, the change stage of the star can be completely and continuously demonstrated at the demonstration position.
As shown in fig. 5 and 6, the second gear 13 is meshed with the first gear 11, the thickness of the first gear 11 is smaller than that of the second gear 13, the first gear 11 is located at the lower side of the turntable 14, the first motor 9 can drive the first rotating shaft 10 to rotate in a following manner after running, the first gear 11 can be driven to rotate in a following manner through the rotation of the first rotating shaft 10, and the first gear 11 can drive the turntable 14 to rotate through the meshing with the second gear 13.
As shown in fig. 5 and 6, the top of the third partition 7 is fixedly connected with a second motor 17, the output end of the second motor 17 penetrates through the third partition 7 and extends to the lower side, the output end of the second motor 17 is fixedly connected with a second rotating shaft 18, the lower end surface of the second rotating shaft 18 is fixedly connected with a fourth gear 19, when the rotating projection film base 15 is switched to perform star change phase demonstration, the second motor 17 can drive the second rotating shaft 18 to rotate, the fourth gear 19 is driven to rotate in a following manner when the second rotating shaft 18 rotates, and the sixth gear 21 can be driven to rotate in a following manner through the meshing with the fifth gear 20 by the rotation of the fourth gear 19.
As shown in fig. 5 and 6, the top of the turntable 14 is rotatably connected with a rotating seat 22, the top of the rotating seat 22 is fixedly connected with a sixth gear 21, the top of the sixth gear 21 is fixedly connected with a fifth gear 20, the fifth gear 20 is meshed with a fourth gear 19, and the sixth gear 21 is rotated by the sixth gear 21, and since the sixth gear 21 is meshed with a plurality of third gears 16 on the outer side, the third gear 16 can be driven to rotate along with the sixth gear 21, and the rotating projection film seat 15 can be driven to rotate by the rotation of the third gear 16.
As shown in fig. 3 and fig. 4, the outer surfaces of the plurality of rotary projection film seats 15 are fixedly connected with a third gear 16, the plurality of third gears 16 are uniformly distributed at the outer positions of the sixth gear 21, the third gear 16 is engaged with the sixth gear 21, and when the rotary projection film seat 15 is projected in cooperation with the optical lens 26, the plurality of rotary projection film seats 15 are in a rotation switching state, and simultaneously, the single rotary projection film seat 15 is also in a rotation state.
As shown in fig. 3 and 4, the top of the bottom plate 1 is symmetrically and fixedly connected with cooling fans 23, the top of the bottom plate 1 is fixedly connected with cooling fins 24, the cooling fins 24 are positioned between the two cooling fans 23, and through the use of a heat conducting pad 25, the heat conducting pad 25 with a certain elasticity is filled between the first partition plate 3 and the cooling fins 24, namely, through the use of the heat conducting pad 25, heat generated by the operation of the optical lens 26 can be efficiently conducted, and after the heat is conducted to the positions of the cooling fins 24.
As shown in fig. 3 and 4, the heat dissipation fins 24 are matched with the optical lens 26, the heat conduction pad 25 is arranged at the top of the heat dissipation fins 24, the top of the heat conduction pad 25 is attached to the bottom of the first partition plate 3, and the heat generated by the operation of the optical lens 26 with higher efficiency can be discharged by utilizing the arrangement of the larger contact area between the heat dissipation fins 24 and the air and the operation of the heat dissipation fan 23.
As shown in fig. 1, 5 and 7, the top of the third partition 7 is fixedly connected with a remote control board 27, the top of the top board 28 is fixedly connected with a control panel 30, the top of the top board 28 is fixedly connected with a control button 31, the control button 31 and the control panel 30 are arranged in a matched mode, the control panel 30 is electrically connected with the remote control board 27, a lantern ring 35 is positioned at the outer side of an optical lens seat 34, the outer surface of the lantern ring 35 is fixedly connected with a side block 36, the top of the side block 36 is fixedly connected with a positioning seat 37, the top of the positioning seat 37 is fixedly connected with a threaded rod 38, the outer surface of the threaded rod 38 is provided with a rotating block 39, the outer surface of the rotating block 39 is fixedly connected with a baffle 41, the outer surface of the threaded rod 38 is in threaded connection with a nut 40, the nut 40 is positioned at the upper side of the rotating block 39, the baffle 41 is positioned at the upper side of the optical lens seat 34, when the projection demonstrator is used, the bottom board 1 is placed on a tabletop, the optical lens seat 34 is in a state of vertically aligning with the classroom roof, then the first motor 9 and the second motor 17 can be respectively controlled by the cooperation of the control button 31, the control panel 30 and the remote control plate 27, multiple projection effects can be realized by adjusting different rotation speeds of the first motor 9 and the second motor 17, when the lantern ring 35 is positioned at the outer side of the optical lens seat 34, the optical lens seat 34 is in a normal use state, the cooperation of the side block 36, the positioning seat 37 and the threaded rod 38 is used for providing support for the rotating block 39, the rotating block 39 can drive the baffle 41 to rotate freely, the baffle 41 can rotate to a position covering the upper side of the optical lens seat 34, the screw nut 40 can clamp and fix the position of the rotating block 39, the optical lens seat 34 can be covered by the arrangement of the smaller grooves on the surface of the baffle 41 at the moment, after the covering is completed, the starry sky can be simulated, namely, the starry sky state seen by human eyes on different dates.
When the projection demonstrator is used, after the bottom plate 1 is placed on a desktop, the optical lens seat 34 is in a state of being vertically and upwards aligned with a classroom roof, then the first motor 9 and the second motor 17 can be respectively controlled through the cooperation of the control button 31, the control panel 30 and the remote control plate 27, the remote control plate 27 is in wireless connection with the remote controller to control the demonstrator, and the forward rotation of the demonstrator can be controlled through operating the remote controller, The rotation speed is adjustable, the rotation can be stopped, the next rotation can be switched, multiple projection effects can be realized by adjusting different rotation speeds of the first motor 9 and the second motor 17, when the demonstration instrument is operated, the first motor 9 can drive the first rotation shaft 10 to rotate in a following way after operation, the first gear 11 can be driven to rotate in a following way through the rotation of the first rotation shaft 10, the first gear 11 can drive the rotary table 14 to rotate through the meshing of the second gear 13, the rotary table 14 and the rotation of the second gear 13 can be supported through the arrangement of the supporting shaft 12, the initial position of the rotary table 14 is the state that the optical lens 26 at the bottom is aligned with one of the rotary projection film seats 15 above, the image inside the rotary projection film seat 15 is projected in a planetary motion, so when the rotary projection film seat 15 is placed in the focus of the optical lens 26 during operation of the optical lens 26, a real image which is amplified vertically is formed above the optical lens 26, and simultaneously the top optical focusing lens seat 32 is matched, The optical lens fixing ring 33 and the optical lens seat 34 can be used to put the corresponding image of the rotary projection lens seat 15 on the classroom roof for demonstration, when the single projection demonstration is carried out, the rotary table 14 is in a rotary state under the drive of the first motor 9, and the plurality of rotary projection lens seats 15 respectively correspond to images of different stages of star variation, the demonstrated image content has all-sky star images, all-sky images with calendars, running images of the north-star and the celestial rear seats, moon phase variation images, sun-earth moon running images, earth-moon running images, eight-star running images, north-star and north-star running images, demonstration content can be replaced by other star images according to requirements, the rotary table 14 has a replaceable function, when rotating, the rotary projection lens seats 15 are sequentially moved to the upper position of the optical lens 26, at this time, the complete and continuous demonstration of the star changing stage can be performed at the demonstration position, when the rotating projection film seat 15 is switched to perform the star changing stage demonstration, the second motor 17 is operated to drive the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the fourth gear 19 to rotate in a following manner, the sixth gear 21 can be driven to rotate in a following manner through the meshing with the fifth gear 20 through the rotation of the fourth gear 19, the sixth gear 21 rotates in a meshing manner with the plurality of third gears 16 on the outer side, so that the third gear 16 can be driven to rotate in a following manner when the sixth gear 21 rotates, the rotating projection film seat 15 can be driven to rotate through the rotation of the third gear 16, namely, when the rotating projection film seat 15 is matched with the optical lens 26 to perform projection, the plurality of rotating projection film seats 15 are in a rotating switching manner, the single rotary projection film seat 15 is also in a rotating state, when the star state of the rotary projection film seat 15 is displayed, the demonstrated projection is in a rotating state simulating star operation, the demonstrator is driven to operate by a simple mechanical structure matched with the first motor 9 and the second motor 17, the star change image in the moving state can be completely demonstrated by projection, the demonstrated star operation direction is consistent with the actual star operation direction, the problem that the direction and the actual direction are difficult to be fused on a textbook is solved, meanwhile, when the demonstrator is operated, the heat conducting pad 25 with a certain elasticity is filled at the position between the first partition plate 3 and the heat radiating fins 24, namely, the heat generated by the operation of the optical lens 26 can be efficiently conducted by using the heat conducting pad 25, after the heat is conducted to the position of the heat radiating fins 24, the heat is discharged by using the arrangement of the large contact area of the heat radiating fins 24 and the operation of the heat radiating fan 23, the heat generated by the operation of the optical lens 26 with higher efficiency is improved, the baffle 41 can be rotated to the position covering the optical lens 34 above the textbook, the optical lens 34 can be screwed down, the position of the eye can be covered by the eye nut 34, and the eye can be clamped on the surface of the eye, namely, the eye can be clamped on the eye is not be covered by the position of the eye nut, and the eye is clamped, and the eye is not is covered by the position of the eye nut, and the eye is in the state.
The wiring diagrams of the first motor 9, the cooling fan 23, the optical lens 26, the remote control board 27, the control panel 30 and the control button 31 in the present invention are common knowledge in the art, and the working principle thereof is a known technology, and the model thereof is selected to be an appropriate model according to actual use, so that the control manner and wiring arrangement will not be explained in detail for the first motor 9, the cooling fan 23, the optical lens 26, the remote control board 27, the control panel 30 and the control button 31.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. The utility model provides a portable rotary star sky demonstration instrument of projection type that facilitates use, includes bottom plate (1) and lantern ring (35), its characterized in that bottom plate (1) bottom corner department all fixedly connected with first stand (2), a plurality of all fixedly connected with first baffle (3) between first stand (2) up end, first baffle (3) top edge department all fixedly connected with second stand (4), a plurality of fixedly connected with second baffle (5) between second stand (4) up end, second baffle (5) top fixedly connected with a plurality of third stand (6), a plurality of fixedly connected with third baffle (7) between third stand (6) up end, second baffle (5) bottom fixedly connected with first motor (9), first motor (9) output run through second baffle (5) and extend to the upside, first motor (9) output fixedly connected with first pivot (10), first (10) up end fixedly connected with first gear (11), second gear (12) top fixedly connected with second pivot (13), the optical lens comprises a base plate (1), a plurality of rotary projection film seats (15) are uniformly rotationally connected to the top of the base plate (14), an optical lens (26) is fixedly connected to the top of the first baffle (3), a shell (29) is fixedly connected to the top of the base plate (1), a top plate (28) is fixedly connected to the top of the shell (29), an optical focusing lens seat (32) is fixedly connected to the top of the top plate (28), an optical lens fixing ring (33) is arranged on the top of the optical focusing lens seat (32), an optical lens seat (34) is arranged on the top of the optical lens fixing ring (33), and the optical lens seat (34) is matched with the rotary projection film seat (15) in position.
2. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 1, wherein an avoidance groove is formed in the top of the second partition board (5), the optical lens (26) is located at the inner side of the avoidance groove, and the top of the optical lens (26) is located at the upper position of the second partition board (5).
3. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 2, wherein a plurality of through holes are uniformly formed in the top of the rotary table (14), the through holes are matched with the rotary projection sheet seat (15) in position, and the optical lens (26) is matched with the rotary path of the rotary projection sheet seat (15).
4. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 1, wherein the second gear (13) is meshed with the first gear (11), the thickness of the first gear (11) is smaller than that of the second gear (13), and the first gear (11) is positioned at the lower side of the rotary table (14).
5. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 1, wherein the top of the third partition plate (7) is fixedly connected with a second motor (17), the output end of the second motor (17) penetrates through the third partition plate (7) and extends to the lower side, the output end of the second motor (17) is fixedly connected with a second rotating shaft (18), and the lower end face of the second rotating shaft (18) is fixedly connected with a fourth gear (19).
6. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 5, wherein a rotating seat (22) is rotatably connected to the top of the turntable (14), a sixth gear (21) is fixedly connected to the top of the rotating seat (22), a fifth gear (20) is fixedly connected to the top of the sixth gear (21), and the fifth gear (20) is in meshed connection with the fourth gear (19).
7. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 6, wherein a plurality of third gears (16) are fixedly connected to the outer surfaces of the rotary projection sheet seats (15), the third gears (16) are uniformly distributed at the outer side of the sixth gear (21), and the third gears (16) are meshed with the sixth gear (21).
8. The portable projection type rotary star demonstration instrument convenient to use according to claim 1 is characterized in that radiating fans (23) are symmetrically and fixedly connected to the top of the bottom plate (1), radiating fins (24) are fixedly connected to the top of the bottom plate (1), and the radiating fins (24) are located between the two radiating fans (23).
9. The portable projection type rotary starry sky demonstration instrument convenient to use according to claim 1, wherein the radiating fins (24) are matched with the optical lenses (26), the tops of the radiating fins (24) are provided with heat conducting pads (25), and the tops of the heat conducting pads (25) are attached to the bottoms of the first partition plates (3).
10. The portable rotary star presentation instrument of projection type convenient to use according to claim 1, wherein the top of the third partition plate (7) is fixedly connected with a remote control plate (27), the top of the top plate (28) is fixedly connected with a control panel (30), the top of the top plate (28) is fixedly connected with a control button (31), the control button (31) and the control panel (30) are arranged in a matched mode, the control panel (30) is electrically connected with the remote control plate (27), the lantern ring (35) is positioned at the outer side of the optical lens seat (34), the outer surface of the lantern ring (35) is fixedly connected with a side block (36), the top of the side block (36) is fixedly connected with a positioning seat (37), the top of the positioning seat (37) is fixedly connected with a threaded rod (38), the outer surface of the threaded rod (38) is provided with a rotating block (39), the outer surface of the threaded rod (38) is fixedly connected with a baffle (41), the nut (40) is positioned at the upper side of the rotating block (39), and the baffle (41) is positioned at the upper side of the optical lens seat (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411381755.0A CN119087731A (en) | 2024-09-30 | 2024-09-30 | A convenient projection portable rotating starry sky demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411381755.0A CN119087731A (en) | 2024-09-30 | 2024-09-30 | A convenient projection portable rotating starry sky demonstrator |
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| Publication Number | Publication Date |
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| CN119087731A true CN119087731A (en) | 2024-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411381755.0A Pending CN119087731A (en) | 2024-09-30 | 2024-09-30 | A convenient projection portable rotating starry sky demonstrator |
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| Country | Link |
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| CN (1) | CN119087731A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110472331A (en) * | 2019-08-14 | 2019-11-19 | 上海卫星工程研究所 | Reduce the layout optimization method of sensitive single machine dose of radiation in satellite capsule |
| CN211044548U (en) * | 2019-07-19 | 2020-07-17 | 苏州爱牛科教器材有限公司 | Starry sky projector |
| CN115854288A (en) * | 2022-11-29 | 2023-03-28 | 魏俊 | Projection lamp with smart visual effect |
| CN116184753A (en) * | 2023-03-14 | 2023-05-30 | 深圳市麓邦技术有限公司 | Meteor sky projection lamp |
-
2024
- 2024-09-30 CN CN202411381755.0A patent/CN119087731A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211044548U (en) * | 2019-07-19 | 2020-07-17 | 苏州爱牛科教器材有限公司 | Starry sky projector |
| CN110472331A (en) * | 2019-08-14 | 2019-11-19 | 上海卫星工程研究所 | Reduce the layout optimization method of sensitive single machine dose of radiation in satellite capsule |
| CN115854288A (en) * | 2022-11-29 | 2023-03-28 | 魏俊 | Projection lamp with smart visual effect |
| CN116184753A (en) * | 2023-03-14 | 2023-05-30 | 深圳市麓邦技术有限公司 | Meteor sky projection lamp |
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