CN206322341U - Geography teaching projection equipment - Google Patents

Abstract

A geography teaching projection device includes a lifting mechanism, a projection mechanism, a spherical imaging mechanism, a dome imaging mechanism and a speaker mechanism. The lifting mechanism includes a support frame, a lifting motor, a driving rod, a guide sleeve and a guide rod. The projection mechanism includes an electronic computer, a projector and a fisheye lens. The spherical imaging mechanism includes a light-transmitting sphere and a first projection imaging film. The dome imaging mechanism includes a dome and a second projection imaging film. The speaker mechanism includes a box body and a speaker module, and a speaker hole connected to the outside is provided on the side wall of the box body. The geography teaching projection device is provided with a lifting mechanism, a projection mechanism, a spherical imaging mechanism and a dome imaging mechanism, and the projection mechanism cooperates with the spherical imaging mechanism to achieve a spherical projection imaging effect. The projection mechanism cooperates with the lifting mechanism and the dome imaging mechanism to achieve a curved imaging effect, and the spatial display effect is greatly improved, thereby improving the teaching effect.

Description

Geography teaching projection equipment

technical field

The utility model relates to the field of teaching appliances, in particular to a projection device for geography teaching.

Background technique

At present, teachers in geography classes usually use the teaching method of books plus explanations to teach geography knowledge. However, because the subject of geography is closely related to the ability of spatial imagination, simply using the teaching method of books plus explanations lacks the understanding of geography. The spatial display of relevant knowledge increases the requirements for students' spatial imagination, which can easily lead to poor teaching effects.

Utility model content

Based on this, it is necessary to provide a geography teaching projection device with better spatial display effect and better teaching effect.

A geography teaching projection device, comprising:

The lifting mechanism, the lifting mechanism includes a support frame, a lifting motor, a driving rod, a guide sleeve and a guiding rod, the lifting motor is arranged in the supporting frame, the first end of the driving rod is connected to the lifting motor, The guide sleeve is arranged on the support frame, and the first end of the guide rod is slidably arranged in the guide sleeve;

A projection mechanism, the projection mechanism includes an electronic computer, a projector and a fisheye lens, the projector is respectively fixed with the second end of the driving rod and the second end of the guide rod, and the projector is connected with the second end of the guide rod The electronic computer is electrically connected, and the fisheye lens is connected to the projector;

A sphere imaging mechanism, the sphere imaging mechanism includes a light-transmitting sphere and a first projection imaging film, the light-transmitting sphere has a hollow structure, and the first projection imaging film is attached to the inner wall of the light-transmitting sphere, so The light-transmitting sphere is provided with a light entrance, and the light-transmitting sphere is used to be placed on the projector so that the fisheye lens is set toward the light entrance;

The dome imaging mechanism, the dome imaging mechanism includes a dome and a second projection imaging film, the dome is provided with an attachment surface with a concave structure, the second projection imaging film is attached to the attachment surface, the The second projection imaging film is arranged towards the fisheye lens;

The speaker mechanism, the speaker mechanism includes a box body and a speaker module, the box body has a hollow structure, the side wall of the box body is provided with a speaker hole communicating with the outside, and the speaker module contains Placed in the box, the speaker module is electrically connected to the computer, and the speaker module is arranged facing the speaker hole.

In one of the embodiments, the side wall of the box is provided with a plurality of sound holes communicating with the outside.

In one of the embodiments, the sound holes are sequentially arranged at intervals.

In one of the embodiments, the distance between every two adjacent sound holes is equal.

In one of the embodiments, the sound holes are distributed in an array.

In one of the embodiments, the sound holes are distributed in a rectangular array.

In one of the embodiments, the box has a hollow cuboid structure.

In one of the embodiments, the box body is arranged in the support frame.

In one of the embodiments, a threaded fastener is further included, and the threaded fastener is respectively screwed to the box body and the support frame.

The above-mentioned geography teaching projection equipment can realize the spherical projection imaging effect by setting the lifting mechanism, the projection mechanism, the spherical imaging mechanism and the dome imaging mechanism, and the projection mechanism cooperates with the spherical imaging mechanism. The projection mechanism cooperates with the lifting mechanism and the dome imaging mechanism. The curved surface imaging effect is realized, and the space display effect has been greatly improved, thereby improving the teaching effect.

Description of drawings

Fig. 1 is the structural representation of the geography teaching room of an embodiment of the present invention;

Fig. 2 is a schematic structural view of a three-dimensional geography teaching device in an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of another angle of the three-dimensional geography teaching equipment shown in Fig. 2;

Fig. 4 is a structural schematic diagram of another angle of the three-dimensional geography teaching equipment shown in Fig. 2;

Fig. 5 is a sectional view along line A-A of Fig. 4;

6 is a schematic structural diagram of a three-dimensional geographic projection device according to an embodiment of the present invention;

FIG. 7 is a structural schematic diagram of another angle of the three-dimensional geographic projection device shown in FIG. 6;

FIG. 8 is a structural schematic diagram of another angle of the three-dimensional geographic projection device shown in FIG. 6;

FIG. 9 is a structural schematic diagram of another angle of the three-dimensional geographic projection device shown in FIG. 6;

Fig. 10 is a sectional view along the B-B line of Fig. 9;

Fig. 11 is a schematic structural diagram of a geography teaching projection device according to an embodiment of the present invention;

Fig. 12 is a schematic diagram of the spherical imaging working state of the geography teaching projection device shown in Fig. 11;

Fig. 13 is a sectional view along line C-C of Fig. 9;

Fig. 14 is a schematic diagram of the dome imaging working state of the geography teaching projection device shown in Fig. 11;

Fig. 15 is a cross-sectional view along line D-D of Fig. 14 .

detailed description

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the utility model are provided in the accompanying drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used herein in the description of the utility model is only for the purpose of describing specific implementations, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

For example, a geography teaching projection device includes: a lifting mechanism, the lifting mechanism includes a support frame, a lifting motor, a driving rod, a guide sleeve and a guiding rod, the lifting motor is arranged in the supporting frame, and the driving rod The first end of the first end is connected with the lifting motor, the guide sleeve is arranged on the support frame, the first end of the guide rod is slidably arranged in the guide sleeve; the projection mechanism, the projection mechanism includes an electronic computer , a projector and a fisheye lens, the projector is respectively fixed with the second end of the driving rod and the second end of the guide rod, the projector is electrically connected with the electronic computer, and the fish The spectacle lens is connected with the projector; the spherical imaging mechanism, the spherical imaging mechanism includes a light-transmitting sphere and a first projection imaging film, the light-transmitting sphere has a hollow structure, and the first projection imaging film is attached to the On the inner wall of the light-transmitting sphere, the light-transmitting sphere is provided with a light entrance, and the light-transmitting sphere is used to be placed on the projector, so that the fisheye lens is arranged towards the light entrance; the dome The imaging mechanism, the dome imaging mechanism includes a dome and a second projection imaging film, the dome is provided with an attachment surface with a concave structure, the second projection imaging film is attached to the attachment surface, and the first The second projection imaging film is set towards the fisheye lens; the speaker mechanism, the speaker mechanism includes a box body and a speaker module, the box body has a hollow structure, and the side wall of the box body is provided with a channel to communicate with the outside The speaker module is accommodated in the box, the speaker module is electrically connected to the computer, and the speaker module is arranged facing the speaker hole.

Another example is, please refer to Fig. 1, geography teaching room 10 comprises: three-dimensional geography teaching equipment 100, three-dimensional geography projection equipment 200, geography teaching projection equipment 300, three-dimensional geography teaching equipment 100, three-dimensional geography projection equipment 200, geography teaching projection equipment 300 are located together in the teaching room 400, and the 3D geography teaching equipment 100, the 3D geography projection equipment 200, and the geography teaching projection equipment 300 are arranged adjacent to each other. For example, the geography teaching room includes 3D geography teaching equipment, 3D geography projection equipment, geography teaching projection equipment and/or geography teaching room, and the 3D geography teaching equipment, the 3D geography projection equipment, and the geography teaching projection equipment are all Set in the teaching room.

Please refer to Fig. 2 and Fig. 5 together, three-dimensional geography teaching equipment 100 comprises cabinet 110, display device 120, imaging device 130 and loudspeaker (blocked by cabinet among the figure), display device 120, imaging device 130 and described loudspeaker all Set in the cabinet body 110.

Please refer to Fig. 3, cabinet body 110 comprises bottom shell 111, back plate 112 and top shell 113, and bottom shell 111 and top shell 113 are vertically connected with the two ends of back plate 112 respectively, for example, described bottom shell and described top shell All are hollow cuboid structures, for example, the bottom shell and the top shell have the same shape and/or the same size; the back plate is a cuboid structure, and the back plate is perpendicular to the bottom shell and the top shell respectively connected, the bottom case, the top case are connected with the back plate to form a "concave" structure. For example, the cabinet is placed in the teaching room.

Please refer to FIG. 3 , a sound outlet 1111 is opened on the bottom shell 111 , and the speaker communicates with the outside through the sound outlet 1111 to achieve a normal sound effect. For example, the bottom shell is provided with a plurality of sound outlets, and each of the sound outlets is arranged at intervals in sequence; as another example, the distance between each adjacent two of the sound outlets is equal; The sound holes are arranged in a matrix.

Please refer to Figure 4 and Figure 5 together, the display device 120 includes a computer (not shown) and a display screen 121, the computer is electrically connected to the display screen 121, and the computer is used to input display signals to the display screen 121 to display The screen performs image display according to the display signal. The display screen 121 is disposed on the top case 113 , and the display surface of the display screen 121 is disposed facing the bottom case 111 . The display screen 121 is provided with three display areas, each of which is used to display a display interface.

Please refer to FIG. 1 and FIG. 5 together, the imaging device 130 includes a first imaging glass plate 131, a second imaging glass plate 132 and a third imaging glass plate 133, the first imaging glass plate 131, the second imaging glass plate 132 and the The ends of the three imaging glass plates 133 are all arranged on the side of the bottom shell 111 facing the top shell 113, and the opposite two sides of the first imaging glass plate 131 are respectively connected to one side of the second imaging glass plate 132 and the third One side of the imaging glass plate 133 is connected, the side of the second imaging glass plate 132 away from the first imaging glass plate 131 is connected to the back plate 112, and the third imaging glass plate 133 is far away from the first imaging glass plate 131 and the back plate 112 connected, the first imaging glass plate 131, the second imaging glass plate 132, the third imaging glass plate 133 and the back plate form a four-sided pyramid structure, the first imaging glass plate 131, the second imaging glass plate 132 and the third imaging glass plate 132 The imaging glass plates 133 are respectively arranged towards a display area, that is, the first imaging glass plate 131, the second imaging glass plate 132 and the third imaging glass plate 133 are respectively used to project and display the display interface on a display area. , that is, to perform holographic projection display on the image on the display area. Through the first imaging glass plate 131, the second imaging glass plate 132, and the third imaging glass plate 133, the three display areas are respectively holographically projected to achieve a 270-degree 3D stereoscopic imaging effect, and the spatial display effect is better. Identifying specific landforms and terrains, for example, has a better auxiliary memory and understanding for specific landforms such as karst landforms, loess landforms, glacial landforms, and volcanic lava landforms. Improve the teaching effect well.

It should be noted that how to cooperate with the display screen and the imaging glass plate to achieve the holographic projection imaging effect can be implemented with reference to the existing technology, and will not be described in detail here.

In order to further improve the imaging effect, for example, the first imaging glass plate includes a first transparent glass plate and a first holographic projection film, and the first holographic projection film is attached to the first transparent glass plate; as another example, The second imaging glass plate includes a second transparent glass plate and a second holographic projection film, and the second holographic projection film is attached to the second transparent glass plate; as another example, the third imaging glass plate includes The third transparent glass plate and the third holographic projection film, the third holographic projection film is attached to the third transparent glass plate, so that the imaging effect can be further improved.

For example, the display device further includes a mouse, which is electrically connected to the computer for information input and teaching interaction, so as to improve teaching effect.

The display device also includes a keyboard, which is electrically connected to the computer for information input and teaching interaction to improve teaching effects.

Please refer to Fig. 3, the speaker is housed in the bottom case 111, the speaker is electrically connected to the computer, and the computer is used to input sound signals to the speaker and play teaching audio through the speaker, for example , when performing projection imaging teaching, the loudspeaker is also used to assist teaching, so that the teaching effect can be further improved. The speaker is arranged towards the sound hole 1111, which is more conducive to the sound playing effect of the speaker, so as to improve the teaching effect.

The above-mentioned three-dimensional geography teaching equipment 100 is provided with a cabinet body 110, a display device 120, an imaging device 130, and a speaker, and the cooperation between the display device 120 and the imaging device 130 can realize the three-dimensional space display effect on topography and landforms. Compared with the traditional plane display teaching, The space display effect has been greatly improved, thus improving the teaching effect better.

Please refer to FIGS. 6 to 9 together. The three-dimensional geographic projection device 200 includes a frame 210 and a projection device 220 . The projection device 220 is disposed adjacent to the frame 210 . Both the frame 210 and the projection device 220 are arranged in the teaching room, for example, the frame and the projection device are both arranged on the wall of the teaching room.

Please refer to Fig. 6 and Fig. 10 together, frame 210 comprises frame body 211, dividing plate 212, the first three-dimensional terrain model 213, the second three-dimensional terrain model 214, guide rail 215 and projection imaging board 216, and frame body 211 sets described teaching Indoors, for example, the frame is arranged on the wall of the teaching room. The partition 212 , the first three-dimensional terrain model 213 , the second three-dimensional terrain model 214 , the guide rail 215 and the projection imaging plate 216 are all arranged on the frame body 211 .

Please refer to FIG. 6 and FIG. 10 together. The frame body 211 is a hollow cuboid structure with an opening. For example, the frame body is a hollow cuboid structure with an opening, and the bottom of the frame body is arranged on the wall of the teaching room. On the body, the opening of the frame body is exposed to the outside.

Please refer to FIG. 10 , the partition 212 is accommodated in the frame body 211, and the two ends of the partition plate 212 are respectively connected with the two opposite inner side walls of the frame body 211, so as to divide the internal space of the frame body 211 to form a first container. The placement area 2111 and the second accommodation area 2112. For example, the first accommodating area and the second accommodating area are respectively located on two sides of the partition.

Please refer to FIG. 10 , the first three-dimensional terrain model 213 is arranged at the bottom of the frame body 211 , and the first three-dimensional terrain model 213 is accommodated in the first accommodating area 2111 , and the second three-dimensional terrain model 214 is arranged at the bottom of the frame body 211 , and the second three-dimensional terrain model 214 is accommodated in the second accommodation area 2112 . For example, both the first three-dimensional terrain model and the second three-dimensional terrain model are made of white material, for example, the first three-dimensional terrain model and the second three-dimensional terrain model are made of plaster, of course, the The material of the first three-dimensional terrain model and the second three-dimensional terrain model is not limited to gypsum, as long as the surfaces with concave-convex structures on the first three-dimensional terrain model and the second three-dimensional terrain model can better project images Just show up.

Please refer to FIG. 6 and FIG. 10 together. The guide rail 215 is arranged on the frame body 211, and the projection imaging plate 216 is slidably disposed on the guide rail 215. When the projection imaging plate 216 slides relative to the guide rail 215, it is used to close the first accommodation area 2111 The second accommodating area 2112 is used to block the first three-dimensional terrain model 213 or the second three-dimensional terrain model 214, for example, when the projection imaging plate closes the second accommodating area and simultaneously blocks the first three-dimensional terrain model In the case of two three-dimensional terrain models, at this time, the first three-dimensional terrain model located in the first accommodating area is exposed to the outside, so that the surfaces of the projection imaging plate and the first three-dimensional terrain model are all used When displaying the projected image of the projection device, for example, the image displayed on the surface of the first three-dimensional terrain model is related to the terrain information of the first three-dimensional terrain model, and the image displayed on the projection imaging board pays more attention to In-depth theoretical teaching explanations, in this way, can achieve dual-screen display, three-dimensional display-theoretical teaching and further improve the teaching effect. For example, the first three-dimensional terrain model is a three-dimensional terrain model of China. At this time, the distribution information of various ethnic groups in China, the distribution information of rivers and lakes in China, land resource information, agricultural crop distribution information, climate information or industrial distribution information, etc. The image is projected onto the first three-dimensional terrain model through the projection device, and more in-depth theoretical teaching and explanation information is projected onto the projection imaging board, for example, when the images of the distribution information of various ethnic groups in China are projected onto the When on the first three-dimensional terrain model, more in-depth theoretical teaching explanation information such as the number of people, characteristics, festivals and cultures of each ethnic group can be projected onto the projection imaging board, so that dual-screen display and three-dimensional display can be realized -The effect of both theoretical teaching further improves the teaching effect.

Similarly, when it is necessary to switch, it is only necessary to push the projection imaging plate along the guide rail, and make the projection imaging plate close the first accommodating area and block the second three-dimensional terrain model. , change the image projected by the projection device so that it is compatible with the second three-dimensional terrain model, for example, the second three-dimensional terrain model is a world three-dimensional terrain model, at this time, the world climate information, world precipitation can be The distribution information, world language distribution information and world religion distribution information, etc. are projected onto the second three-dimensional terrain model through the projection device, and more in-depth theoretical teaching explanation information is projected onto the projection imaging board For example, when the image of the distribution information of world religions is projected onto the second three-dimensional terrain model, more in-depth theoretical teaching explanation information such as the origin of each religion, the number of religious believers, cultural conditions and development conditions, etc. can be projected onto the The projection imaging board, in this way, can realize dual-screen display, stereoscopic display and theoretical teaching, and further improve the teaching effect.

In this way, the three-dimensional geographical projection device can realize the in-depth and comprehensive teaching resources, and the switching operation is more convenient and fast, which can not only improve the three-dimensional display effect of geography teaching, but also simultaneously realize the in-depth theoretical teaching explanation effect, so , can further improve the teaching effect.

It should be noted that the first three-dimensional terrain model and the second three-dimensional terrain model are set differently, for example, the first three-dimensional terrain model is a Chinese three-dimensional terrain model, and the second three-dimensional terrain model is a world three-dimensional terrain model Model, of course, the first three-dimensional terrain model is not limited to the Chinese three-dimensional terrain model, such as, the first three-dimensional terrain model can also be other three-dimensional terrain models; the second three-dimensional terrain model is not limited to the world three-dimensional terrain model For example, the second three-dimensional terrain model can also be other three-dimensional terrain models, which can be adjusted according to teaching staff or other practical factors. For example, in order to take into account the teaching effect of Guangdong Province geography and Dongguan City geography, as described The first three-dimensional terrain model is a three-dimensional terrain model of Guangdong Province, and the second three-dimensional terrain model is a three-dimensional terrain model of Dongguan City.

Please refer to FIG. 8 and FIG. 10 together. The projection device 220 includes a computer (not shown), a first projection assembly 221 and a second projection assembly 222. The first projection assembly 221 includes a first support rod 2211 and a first projector 2212. , the first support rod 2211 is disposed on the frame body 211, the first projector 2212 is disposed on the end of the first support rod 2211 away from the frame body 211, the first projector 2211 has a first projection lens, and the first projection The lens is set toward the first accommodation area 213, and the first projection lens is used to project images on the first three-dimensional terrain model 213, or when the projection imaging plate 216 blocks the first three-dimensional terrain model 213, the first projection lens It is used for projecting images on the projection imaging plate 216 . The second projection assembly 222 includes a second support rod 2221 and a second projector 2222, the second support rod 2221 is arranged on the frame body 211, and the second projector 2222 is arranged on the end of the second support rod 2221 away from the frame body 211 , the second projector 222 has a second projection lens, the second projection lens is set toward the second accommodating area 214, and the second projection lens is used for projecting an image on the second three-dimensional terrain model 214, or when projecting an image When the plate 216 blocks the second three-dimensional terrain model 214, the second projection lens is used to project an image on the projection imaging plate 216, so that the effect that the projection imaging plate and one of the three-dimensional terrain models are projected at the same time can be achieved, That is, the dual-screen effect is realized.

The first projector 221 and the second projector 222 are respectively electrically connected to the computer, and the computer is used to send a first image signal to the first projector, and the first projector receives and responds to the The first image signal is used to project the first image onto the first three-dimensional terrain model or the projection imaging board, and the computer is used to transmit the second image signal to the second projector, and the second projector Receiving and responding to the second image signal is used for projecting the second image onto the second three-dimensional terrain model or the projection imaging board, so that a dual-screen effect can be realized.

In order to achieve a better interactive control effect, to further improve the teaching effect, for example, please refer to FIG. shown), the infrared trigger pen is used to emit infrared rays when touching the projection imaging plate, the infrared sensing component is used to receive the infrared rays emitted by the infrared trigger pen, and the infrared sensing component is electrically connected to the computer connect. For example, the infrared trigger pen can be used as a teaching pen for teaching, such as for pointing out points or areas that need to be explained on the projection imaging board, the first three-dimensional terrain model or/and the second three-dimensional terrain model . In another example, the infrared sensing component is disposed on the first support pole, the second support pole, the first projector or the second projector. As another example, the infrared identification device is provided with two sets of infrared sensing components.

In order to achieve a better interactive control effect, to further improve the teaching effect, as another example, the three-dimensional geographical projection equipment also includes an infrared identification device, the infrared identification device includes an infrared trigger pen and an infrared sensing component, and the infrared trigger pen is used for When the preset control area on the projected image interface on the projection imaging board is touched, infrared rays are emitted, and the infrared sensing component is used to receive the infrared rays emitted by the infrared trigger pen, and the infrared sensing component is used to turn the The specific position coordinate information sent by the infrared ray is sent to the computer, and the computer generates a comparison photo according to the position coordinate information sent by the infrared ray, and then compares the comparison photo with the preset photo with the pre-stored position coordinate information of the preset control area. Comparing, judging the corresponding preset control area touched by the infrared trigger pen, and sending the sub-projected image interface corresponding to the preset control area to the first projector or the second projector, and then The first projector or the second projector projects the sub-projection image interface onto the projection imaging board, so that interactive control effect can be better realized, so as to further improve the teaching effect.

For example, the guide rail includes two installation strips, and the two installation strips are respectively arranged on two opposite sides of the frame, and the two opposite sides of the projection imaging board are respectively connected to the two installation strips. bar sliding connection; as another example, the first three-dimensional terrain model is provided with a first three-dimensional terrain projection surface on a side facing the first projection lens; as another example, the second three-dimensional terrain model faces the second projection lens A second three-dimensional topographical projection surface is provided on one side of one side; as another example, the first support rod includes a first base and a second rod body, the first base is arranged on the frame body, and the first rod body has a second rod body One end is connected to the first base, and the first projector is connected to the second end of the second rod; as another example, the first rod is perpendicular to the partition; as another example, the first The two supporting rods include a second base and a second rod body, the second base is arranged on the frame body, the second end of the second rod body is connected to the second base, the second projector is connected to the The second end of the second pole is connected; as another example, the second pole is perpendicular to the partition; as another example, it also includes a podium and a display, the podium is set adjacent to the frame, and the display is set on On the podium, and the display is electrically connected to the computer; as another example, the podium is provided with a charging stand for charging the infrared trigger pen placed on the charging stand.

In order to further improve the teaching effect, please refer to FIG. 7, the three-dimensional geographical projection device 200 also includes a speaker device 240, the speaker device includes a housing and a speaker assembly, the housing has a hollow structure, the side of the housing A through hole communicating with the outside is opened on the wall, the speaker assembly is accommodated in the housing, the speaker assembly is electrically connected to the computer, and the speaker assembly is arranged facing the through hole, In this way, the audio can be played through the speaker device to further improve the teaching effect.

For example, the housing is provided with a plurality of through holes; as another example, each of the through holes is sequentially arranged at intervals; as another example, the distance between every two adjacent through holes is equal; as another example, each of the through holes The holes are distributed in a rectangular array; as another example, the housing has a hollow cuboid structure; as another example, chamfers are provided at the end corners of the housing; as another example, the partition has a cuboid structure; as another example , further comprising a podium and a display, the podium is disposed adjacent to the frame, the display is disposed on the podium, and the display is electrically connected to the computer; as another example, the podium has a hollow cuboid structure.

The above-mentioned three-dimensional geographic projection device 200 can achieve the effect of both stereoscopic display and theoretical teaching by setting the frame 210 and the projection device 220, and the cooperation of the frame 210 and the projection device 220, the spatial display effect has been greatly improved, thereby improving the teaching effect better.

Please refer to Fig. 11, the geography teaching projection equipment 300 comprises a lifting mechanism 310, a projection mechanism 320, a spherical imaging mechanism 330 and a dome imaging mechanism 340, the projection mechanism 320 is arranged on the lifting mechanism 310, and the projection mechanism 320 is used for the spherical imaging mechanism 330 or the dome Projection imaging is performed on the imaging mechanism 340 .

Referring to Fig. 11, the lifting mechanism 310 includes a support frame 311, a lifting motor (not shown), a drive rod 312, a guide sleeve 313 and a guide rod 314, the lifting motor is arranged in the support frame 311, and the first drive rod 312 The end is connected with the lifting motor, the guide sleeve 313 is arranged on the support frame 311, the first end of the guide rod 314 is slidably arranged in the guide sleeve 313, controls the described lifting motor, and can drive the driving rod 312 to carry out the lifting operation.

Please refer to Fig. 11 and Fig. 13 together, projection mechanism 320 comprises electronic computer (figure not shown), projector 321 and fisheye lens 322, and projector 321 is connected with the second end of driving rod 312 and the second end of guide rod 314 respectively. The ends are fixed, the projector 321 is electrically connected to the computer, and the fisheye lens 322 is connected to the projector 321 . The electronic computer is used to transmit projected image signals to the projector 321 .

When the lifting mechanism 310 is not performing the lifting operation, that is, when the projector 321 is in contact with the support frame 311, the fisheye lens 322 of the projector 321 is used to perform projection and imaging operations on the spherical imaging mechanism 330. When it is necessary to control the projector 321 to image the dome When projection imaging is performed on the mechanism 340 , the lifting motor is controlled to drive the fisheye lens 322 of the projector 321 to move towards the direction close to the dome imaging mechanism 340 through the driving rod 312 for adjusting to a suitable focal length.

For example, the fisheye lens is a lens with a focal length of 16mm or less and a viewing angle close to or equal to 180°, which is an extreme wide-angle lens, so that it can better perform projection operations on spherical or curved surfaces.

Please refer to Fig. 12 and Fig. 13 together, the sphere imaging mechanism 330 includes a light-transmitting sphere 331 and a first projection imaging film (not shown), the light-transmitting sphere 331 has a spherical structure with a hollow structure, and the first projection imaging film Attached to the inner wall of the transparent sphere 331 , for example, the first projection imaging film has a spherical structure. The fisheye lens 322 of the projector 321 is used for projecting images on the first projection imaging film.

Referring to Fig. 13, the light-transmitting sphere 331 is provided with a light entrance 3311, and the light-transmitting sphere 331 is used to be placed on the projector 321, so that the fisheye lens 322 is arranged towards the light entrance 3311, like this, the fish of the projector 321 The light emitted by the eye lens 322 passes through the light entrance 3311 to project the image onto the first projection imaging film, so that the three-dimensional display effect can be improved, and the teaching effect can be further improved. For example, the material of the transparent sphere is a transparent polymer material or glass.

When the first projection imaging film on the sphere imaging mechanism 330 needs to project images and conduct teaching, it is only necessary to cover the light-transmitting sphere 331 on the projector 321 .

For example, the image of the appearance of a spherical celestial body can be displayed through the spherical imaging mechanism 330 , for example, the image of the appearance of a spherical celestial body such as the sun, the moon, Mars, or the earth can be displayed.

Please refer to Figure 14 and Figure 15 together, the dome imaging mechanism 340 includes a dome 341 and a second projection imaging film (not shown), the dome 341 is provided with a concave attachment surface 3411, for example, the dome is provided with a concave The bottom of the groove is a concave curved surface structure, and the bottom surface of the groove forms the attachment surface. The second projection imaging film is attached to the attachment surface 3411, for example, the attachment surface has an arc-shaped curved surface structure, the second projection imaging film is arranged toward the fisheye lens 322, and the fisheye lens of the projector 321 322 is used for performing image projection operation on the second projection imaging film.

When it is necessary to perform image projection on the second projection imaging film of the dome imaging mechanism 340, and when teaching, first, the spherical imaging mechanism is removed so that the light emitted by the fisheye lens 322 of the projector 321 can directly projected onto the second projection imaging film of the dome imaging mechanism 340, and then control the lifting motor to drive the fisheye lens 322 of the projector 321 to move in a direction close to the dome imaging mechanism 340 through the drive rod 312 until the adjustment At this time, the fisheye lens 322 of the projector 321 can project an image on the second projection imaging film of the dome imaging mechanism 340 to a suitable focal length.

For example, the dome imaging mechanism 340 can display images of the solar system, demonstration constellations, the Big Bang, black holes, stars, and galaxies.

In order to better control the lifting mechanism to drive the projector to carry out the lifting operation, for example, the geography teaching projection equipment also includes a remote control mechanism, the remote control mechanism includes a casing and a wireless transmission module, and the wireless transmission and reception module can accommodate Placed in the housing, the lifting motor includes a lifting motor body, a wireless receiving module and a processing module, the processing module is electrically connected to the lifting motor body and the wireless receiving module, and the The first end of the drive rod is connected to the lifting engine body, the wireless receiving module is used to send the wireless signal received from the wireless sending module to the processing module, and the processing module receives and responds The wireless signal is used to control the lifting motor body to drive the driving rod to lift, so that the lifting mechanism can better control the lifting mechanism to drive the projector to perform lifting operations.

For example, the support frame includes a support cylinder and a panel, the support cylinder has a hollow structure, the lifting motor is arranged in the support cylinder, the guide sleeve is arranged on the support cylinder, and the panel It is arranged on the end of the support cylinder; as another example, the support cylinder has a hollow conical structure; as another example, the driving rod passes through the panel; as another example, the panel has a circular structure; As another example, the drive rod has a round rod-shaped structure; as another example, the guide sleeve has a circular cross section; as another example, the guide rod has a round rod-shaped structure; as another example, the guide rod and the drive The rods are parallel; in another example, the guide sleeve is parallel to the driving rod.

In order to further improve the teaching effect, for example, the geography teaching projection equipment also includes a speaker mechanism, the speaker mechanism includes a box body and a speaker module, the box body has a hollow structure, and the side wall of the box body is opened There is a speaker hole communicating with the outside, the speaker module is accommodated in the box, the speaker module is electrically connected to the computer, and the speaker module faces the speaker The hole is set, so that by setting the speaker mechanism, the audio can be played correspondingly, and then play a role in further improving the teaching effect.

For example, the side wall of the box body is provided with a plurality of the speaker holes communicating with the outside; as another example, each of the speaker holes is arranged at intervals in turn; as another example, every two adjacent speaker holes The distance between them is equal; as another example, each of the speaker holes is distributed in an array; as another example, each of the speaker holes is distributed in a rectangular array; as another example, each of the speaker holes is distributed in a circular array; The box body has a hollow cuboid structure; as another example, the box body is arranged in the support frame; as another example, it also includes threaded fasteners, and the threaded fasteners are respectively connected to the box body and the support frame Phase screw connection.

Above-mentioned geography teaching projection equipment 300 can realize spherical projection imaging effect by setting lifting mechanism 310, projection mechanism 320, spherical imaging mechanism 330 and dome imaging mechanism 340, and projection mechanism 320 cooperates with spherical imaging mechanism 330. The cooperation of the mechanism 310 and the dome imaging mechanism 340 can realize the arc surface imaging effect, and the spatial display effect has been greatly improved, thereby improving the teaching effect.

The above-mentioned geography teaching room 10 is provided with the three-dimensional geography teaching equipment 100, the three-dimensional geography projection equipment 200 and the geography teaching projection equipment 300, and the three-dimensional geography teaching equipment 100, the three-dimensional geography projection equipment 200 and the geography teaching projection equipment 300 can realize topography-area- The three-dimensional geography teaching system of the earth and the universe, the three cooperate and complement each other, can meet all the needs of space display in the geography teaching process, the space display effect is excellent, the teaching effect is excellent, and it is suitable for major educational institutions and schools. Promotion, used to promote the development of geography teaching career.

It should be noted that other embodiments of the present invention also include a geography teaching room formed by combining the technical features of the above embodiments.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several embodiments of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. a kind of geographical teaching projector equipment, it is characterised in that including：

Elevating mechanism, the elevating mechanism includes support frame, elevating motor, drive rod, fairlead and guide post, the lifting Engine is arranged in support frame as described above, and the first end of the drive rod is connected with the lifting engine, and the guiding is arranged It is placed on support frame as described above, the first end of the guide post is slideably positioned in the fairlead；

Projector mechanism, the projector mechanism include electronic computer, projecting apparatus and fish eye lens, the projecting apparatus respectively with it is described Second end of drive rod and the second end of the guide post are mutually fixed, and the projecting apparatus is electrically connected with the electronic computer, The fish eye lens is connected with the projecting apparatus；

Spheroid imaging mechanism, the spheroid imaging mechanism includes printing opacity spheroid and the first projection imaging film, the printing opacity spheroid tool There is hollow structure, the first projection imaging film is attached on the madial wall of the printing opacity spheroid, and the printing opacity spheroid is offered Light inlet, the printing opacity spheroid is used to be placed on the projecting apparatus, so that the fish eye lens is set towards the light inlet；

Dome imaging mechanism, the dome imaging mechanism includes dome and the second projection imaging film, and the dome offers spill The attaching face of structure, the second projection imaging film is attached on the attaching face, and the second projection imaging film is described in Fish eye lens is set；

Loudspeaker mechanism, the loudspeaker mechanism includes casing and speaker module, and the casing has hollow structure, the side of the casing Wall offers the loud-speaker opening with ft connection, and the speaker module is placed in the casing, the speaker module and the electricity Sub- computer is electrically connected with, and the speaker module is set towards the loud-speaker opening.

2. geographical teaching projector equipment according to claim 1, it is characterised in that the side wall of the casing offer with outside Multiple loud-speaker openings of portion's connection.

3. geographical teaching projector equipment according to claim 2, it is characterised in that each loud-speaker opening is spaced successively to be set Put.

4. geographical teaching projector equipment according to claim 3, it is characterised in that between per the two neighboring loud-speaker opening Distance it is equal.

5. geographical teaching projector equipment according to claim 4, it is characterised in that each loud-speaker opening is in array distribution.

6. geographical teaching projector equipment according to claim 5, it is characterised in that each loud-speaker opening rectangular array point Cloth.

7. geographical teaching projector equipment according to claim 1, it is characterised in that the casing has hollow cuboid knot Structure.

8. geographical teaching projector equipment according to claim 1, it is characterised in that the casing is arranged at support frame as described above It is interior.

9. geographical teaching projector equipment according to claim 1, it is characterised in that also including threaded fastener, the spiral shell Line fastener respectively with the casing and support frame as described above bolt.