1. The naked eye 3D projection equipment for geography teaching is characterized by comprising a transverse rail (1), a vertical moving mechanism (2), a naked eye 3D projection device (3), a transparent cover (4) and a protective cover (5);

the transverse rail (1) and the vertical moving mechanism (2) are used for transversely and vertically moving the naked eye 3D projection device (3);

a transparent cover (4) for protecting the naked eye 3D projection device (3);

the protection cover (5) is used for protecting the transparent cover (4) and creating a weak light projection environment for the naked eye 3D projection device (3);

wherein, the top at the classroom blackboard is installed in horizontal rail (1), vertical moving mechanism (2) slide on horizontal rail (1) through the sliding block, just vertical moving mechanism (2) relative sliding block rotates perpendicularly, translucent cover (4) set up the surface at bore hole 3D projection arrangement (3), safety cover (5) set up the surface at translucent cover (4), bore hole 3D projection arrangement (3) slide on vertical moving mechanism (2) through safety cover (5).

2. The naked eye 3D projection device for geography teaching according to claim 1, wherein: vertical moving mechanism (2) are including erecting rail (21), sliding seat (22), mount pad (23), the upper end of erecting rail (21) is passed through the sliding block and is slided on horizontal rail (1), slidable mounting sliding seat (22) on erecting rail (21), mount pad (23) fixed mounting is on sliding seat (22), bore hole 3D projection arrangement (3) are fixed on mount pad (23) through safety cover (5).

3. The naked-eye 3D projection device for geography teaching according to claim 2, wherein the two ends of the sliding seat (22) are provided with an arc hole (24) and a fixing hole (25), and the mounting seat (23) penetrates through the arc hole (24) and the fixing hole (25) through two groups of fastening knobs (26) at the two ends and is fixed on the sliding seat (22).

4. The naked eye 3D projection device for geography teaching according to claim 3, wherein the fixing hole (25) is concentric with the circular arc hole (24), and the mounting seat (23) rotates on the sliding seat (22) with the fixing hole (25) as the center.

5. The naked eye 3D projection device for geography teaching according to claim 2, wherein the protective cover (5) comprises a surrounding edge (51) and a mounting fixture block (52), the surrounding edge (51) is located at the periphery of the transparent cover (4), the mounting fixture block (52) is fixedly located at a cross position where the surrounding edge (51) extends to the transparent cover (4), and the mounting fixture block (52) and the mounting seat (23) are mutually clamped and fixed.

6. The naked eye 3D projection device for geography teaching according to claim 5, wherein the protective cover (5) further comprises four sets of triangular baffles (53) and a closing cover (54), the four sets of baffles (53) are respectively rotatably arranged on four sides of the surrounding edge (51), and the closing cover (54) is fixed at the position where the four sets of baffles (53) are overlapped when the four sets of baffles (53) are overlapped.

7. The naked eye 3D projection device for geography teaching according to claim 6, wherein the baffle (53) comprises a trapezoidal plate (531) and two sets of triangular plates (532), the trapezoidal plate (531) and the two sets of triangular plates (532) form an equilateral triangle in an initial state, the two sets of triangular plates (532) rotate outwards through the pins (533) until the inclined edges coincide with the inclined edges of the trapezoidal plate (531), and the two sets of triangular plates (532) form a rectangle with the trapezoidal plate (531).

8. The naked-eye 3D projection device for geography teaching according to claim 7, wherein fan-shaped grooves (534) are formed in the right-angle sides of the two sets of the set triangles (532) which coincide with each other, folding blades (535) are arranged inside the fan-shaped grooves (534), the circle center ends of the folding blades (535) are fixed in the fan-shaped grooves (534), and the free ends of the folding blades (535) are mutually attracted with the free ends of the adjacent folding blades (535).

9. The naked eye 3D projection device for geography teaching according to claim 8, wherein the inner side surface of the baffle (53) is provided with a continuous uninterrupted protruding structure (55), and the protruding structure (55) is one or two of a semicircular strip and a triangular strip.

10. The naked eye 3D projection device for geography teaching according to claim 2, wherein the transverse rail (1) and the vertical rail (21) are respectively provided with two groups of dust blocking curtains which are symmetrically attracted to each other, each dust blocking curtain is composed of a plurality of linearly arranged curtain grids (11), and the upper end of each dust blocking curtain is provided with a mounting strip (12).

Background

The naked eye 3D technology utilizes the parallax of two eyes of a person, and can obtain a vivid three-dimensional image with space and depth without any auxiliary equipment such as 3D glasses, helmets and the like. Naked eye 3D projection equipment can design into style of calligraphy and wall-hanging two kinds for naked eye 3D both can directly stand and put subaerial, also can articulate on the wall, can furthest promote space utilization.

Because a large amount of natural phenomena, mountains and rivers, geological structures and ocean currents move in geography teaching, students cannot obtain visual feelings only through textbook contents and instruction of teachers, the existing naked eye 3D projection equipment is also applied to the teaching, and if the naked eye 3D projection equipment is applied to the geography teaching, the students can know course knowledge more visually through teaching of the natural geography phenomena and simulated geography phenomenon experiments displayed through a naked eye 3D technology in a classroom, but the existing naked eye 3D projection equipment is too high in manufacturing cost and too large in classroom coverage cost. Therefore, a naked eye 3D projection device for geography teaching is proposed.

Disclosure of Invention

The invention aims to solve the problems and provide a naked eye 3D projection device for geography teaching, which is simple in structure and reasonable in design.

The invention realizes the purpose through the following technical scheme:

a naked eye 3D projection device for geography teaching comprises a transverse rail, a vertical moving mechanism, a naked eye 3D projection device, a transparent cover and a protective cover;

the transverse rail and vertical moving mechanism is used for transverse and vertical movement of the naked eye 3D projection device;

the transparent cover is used for protecting the naked eye 3D projection device;

the protection cover is used for protecting the transparent cover and creating a weak projection environment for the naked eye 3D projection device;

the transparent cover is arranged on the outer surface of the naked eye 3D projection device, the protective cover is arranged on the outer surface of the transparent cover, and the naked eye 3D projection device slides on the vertical moving mechanism through the protective cover.

As a further optimization scheme of the invention, the vertical moving mechanism comprises a vertical rail, a sliding seat and a mounting seat, the upper end of the vertical rail slides on the transverse rail through a sliding block, the sliding seat is slidably mounted on the vertical rail, the mounting seat is fixedly mounted on the sliding seat, and the naked eye 3D projection device is fixed on the mounting seat through a protective cover.

As a further optimization scheme of the invention, the two ends of the sliding seat are both provided with an arc hole and a fixing hole, and the mounting seat passes through the arc hole and the fixing hole through two groups of fastening knobs at the two ends and is fixed on the sliding seat.

As a further optimized scheme of the invention, the fixed hole and the arc hole are concentric, and the mounting seat rotates on the sliding seat by taking the fixed hole as the center of a circle.

As a further optimization scheme of the invention, the protective cover comprises a surrounding edge and an installation fixture block, the surrounding edge is positioned on the periphery of the transparent cover, the installation fixture block is fixedly positioned at the cross-shaped intersection of the surrounding edge extending to the transparent cover, and the installation fixture block and the installation seat are mutually clamped and fixed.

As a further optimized scheme of the invention, the protective cover further comprises four groups of triangular baffles and a closing cover, the four groups of baffles are respectively and rotatably arranged on the four sides of the surrounding edge, and when the four groups of baffles are overlapped, the closing cover is fixed at the overlapped position among the four groups of baffles.

As a further optimization scheme of the invention, the baffle plate comprises a trapezoidal plate and two groups of triangular plates, the trapezoidal plate and the two groups of triangular plates form an equilateral triangle in an initial state, and the two groups of triangular plates form a rectangle with the trapezoidal plate when the two groups of triangular plates rotate outwards through pin shafts until oblique edges coincide with the oblique edges of the trapezoidal plate.

As a further optimization scheme of the invention, the overlapped right-angle edges of the two groups of the set squares are provided with fan-shaped grooves, the inside of each fan-shaped groove is provided with a folding fan blade, the circle center end of the folding fan blade is fixed in the fan-shaped groove, and the free end of the folding fan blade and the free end of the adjacent folding fan blade are mutually attracted.

As a further optimization scheme of the invention, the inner side surface of the baffle is provided with a continuous and uninterrupted protruding structure, and the protruding structure is one or a combination of a semicircular strip and a triangular strip.

As a further optimization scheme of the invention, two groups of dust-blocking curtains which are symmetrically attracted with each other are arranged on the transverse rail and the vertical rail, each dust-blocking curtain is composed of a plurality of linearly arranged curtain lattices, and the upper end of each dust-blocking curtain is provided with a mounting strip.

The invention has the beneficial effects that:

1. the invention provides naked eye 3D projection equipment for geography teaching, a teacher only needs to carry a naked eye 3D projection device in class, and the naked eye 3D projection device is arranged on a vertical rail on a blackboard in class and can move left and right and up and down and adjust the angle.

2. When the projection device is not used, the transparent cover and the naked eye 3D projection device are protected by the protective cover, and when the projection device is used, the protective cover is opened and is enclosed around the transparent cover in front of the naked eye 3D projection device, so that a weak light environment is created, and projection is facilitated, and students can watch the projection more clearly.

Drawings

FIG. 1 is a schematic diagram of a use state of a naked eye 3D projection device for geography teaching according to the invention;

FIG. 2 is a schematic view of a naked eye 3D projection device of the naked eye 3D projection equipment for geography teaching according to the invention;

FIG. 3 is a completely enclosed structure diagram of a protective cover of the naked eye 3D projection device for geography teaching according to the invention;

FIG. 4 is a half-open structure diagram of a protective cover of the naked eye 3D projection device for geography teaching, provided by the invention;

FIG. 5 is a fully opened structure diagram of a protective cover of the naked eye 3D projection device for geography teaching according to the invention;

FIG. 6 is a rear view of a protective cover of the naked eye 3D projection device for geography teaching according to the invention;

FIG. 7 is a schematic diagram of a protruding structure of a baffle surface of a naked eye 3D projection device for geography teaching according to the invention;

FIG. 8 is a schematic view of a dust curtain of the naked eye 3D projection device for geography teaching according to the invention.

In the figure: 1. a transverse rail; 11. a curtain lattice; 12. mounting a bar; 2. a vertical moving mechanism; 21. a vertical rail; 22. a sliding seat; 23. a mounting seat; 24. a circular arc hole; 25. a fixing hole; 26. fastening a knob; 3. a naked eye 3D projection device; 4. a transparent cover; 5. a protective cover; 51. surrounding edges; 52. mounting a clamping block; 53. a baffle plate; 531. a trapezoidal plate; 532. a set square; 533. a pin shaft; 534. a sector groove; 535. folding the fan blades; 54. closing the cover; 55. and (4) a protruding structure.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

As shown in fig. 1, the naked eye 3D projection apparatus for geography teaching of this embodiment includes a naked eye 3D projection device 3, a cross rail 1 and a vertical moving mechanism 2 for horizontal and vertical movement of the naked eye 3D projection device 3, a transparent cover 4 for protecting the naked eye 3D projection device 3, and a protection cover 5 for protecting the transparent cover 4 and creating a weak projection environment for the naked eye 3D projection device 3, the naked eye 3D projection device 3 adopts a holographic 3D projection suspended naked eye instrument lamp, a fan rotates to form a screen which can be imaged in the air, the cross rail 1 is installed above a classroom blackboard, the vertical moving mechanism 2 slides on the cross rail 1 through a sliding block, the vertical moving mechanism 2 rotates vertically relative to the sliding block, the transparent cover 4 is arranged on the outer surface of the naked eye 3D projection device 3, a control box of the naked eye 3D projection device 3 passes through the transparent cover 4 and is fixed on the protection cover 5, protective cover 5 sets up the surface at translucent cover 4, bore hole 3D projection arrangement 3 slides on vertical moving mechanism 2 through protective cover 5, when using, rotate ninety degrees from horizontal rail 1 with vertical moving mechanism 2, then fix bore hole 3D projection arrangement 3 on vertical moving mechanism 2 through protective cover 5, insert the power cord on the socket on the vertical moving mechanism 2, then expand protective cover 5 completely, build the projection environment of a weak light outside bore hole 3D projection arrangement 3, can pass through cell-phone conveying or USB plug-in control box's interface transmission control box then the projection with geographical teaching content, when the fan rotates, teaching content can appear in the fan rotation region.

As shown in fig. 2, in the naked eye 3D projection apparatus for geography teaching of this embodiment, the vertical moving mechanism 2 includes a vertical rail 21, a sliding seat 22, and a mounting seat 23, an upper end of the vertical rail 21 slides on the horizontal rail 1 through a sliding block, the sliding seat 22 is slidably mounted on the vertical rail 21, the mounting seat 23 is fixedly mounted on the sliding seat 22, the naked eye 3D projection apparatus 3 is fixed on the mounting seat 23 through the protective cover 5, both ends of the sliding seat 22 are respectively provided with an arc hole 24 and a fixing hole 25, the mounting seat 23 is fixed on the sliding seat 22 through two sets of fastening knobs 26 at both ends passing through the arc hole 24 and the fixing hole 25, the fixing hole 25 and the arc hole 24 are concentric, the mounting seat 23 rotates on the sliding seat 22 with the fixing hole 25 as a center, in an initial position, the naked eye 3D projection apparatus 3 and the vertical rail 21 are parallel to each other, the two sets of fastening knobs 26 are located on a same vertical straight line, when an angle needs to be adjusted, the fastening knob 26 located in the arc hole 24 slides upwards along the arc hole 24, so that the installation seat 23 can be changed to incline, the angle of the naked eye 3D projection device 3 can be adjusted within a certain range, and the best viewing angle of students is achieved.

As shown in fig. 3-7, in the naked eye 3D projection apparatus for geography teaching of this embodiment, the protection cover 5 includes a surrounding edge 51 and an installation fixture block 52, the surrounding edge 51 is located at the periphery of the transparent cover 4, the installation fixture block 52 is fixedly located at a cross-shaped intersection where the surrounding edge 51 extends to the transparent cover 4, the installation fixture block 52 is fixedly engaged with the installation seat 23, thereby fixing the transparent cover 4 and the whole naked eye 3D projection apparatus 3 by fixing the installation fixture block 52, and the control box of the naked eye 3D projection apparatus 3 is fixedly connected with the installation fixture block 52.

As shown in fig. 3, the protective cover 5 further includes four sets of triangular baffles 53 and a closing cover 54, the four sets of baffles 53 are located in front of the transparent cover 4 to protect the transparent cover 4 and the naked-eye 3D projection device 3, the four sets of baffles 53 are respectively rotatably arranged on four sides of the surrounding edge 51, the rotating range of the baffles 53 is 0 to 90 degrees, when the four sets of baffles 53 are overlapped, the closing cover 54 is fixed at the overlapped position in the middle of the four sets of baffles 53, a quarter of convex rings are arranged on the four sets of baffles 53, a groove matched with the convex rings is arranged at the lower end of the closing cover 54 to just fix the four sets of baffles 53, and a handle is further arranged at the upper end of one surrounding edge 51 to facilitate the teacher to carry the teacher.

As shown in fig. 4, the baffle 53 comprises a trapezoidal plate 531 and two sets of triangular plates 532, the trapezoidal plate 531 and the two sets of triangular plates 532 form an equilateral triangle in the initial state, the two sets of triangular plates 532 rotate outwards through a pin 533, when in use, the baffle 53 is turned up to form a proper angle with the transparent cover 4 in the first step, then the two sets of triangular plates 532 are respectively rotated towards two sides, so that the inclined sides of the triangular plates 532 coincide with the inclined sides of the trapezoidal plate 531, the two sets of triangular plates 532 and the trapezoidal plate 531 form a rectangle, as shown in fig. 5, the right-angle sides of the two sets of triangular plates 532 coincide are provided with fan-shaped grooves 534, black folding fan blades 535 are arranged inside the fan-shaped grooves 534, the circle center ends of the folding fan blades 535 are fixed in the fan-shaped grooves 534, the free ends of the folding fan blades 535 attract the free ends of the adjacent folding fan blades 535, in order to form a full enclosure structure, the folding fan blades 535 are unfolded from the fan-shaped grooves 534 after the four-side baffle 53 forms a rectangle, the magnetic attraction or the fixing structure of the adjacent folding blades 535 are fixed to each other, so that the adjacent rectangular baffles are covered, and a projection area with darker light is formed in front of the naked-eye 3D projection device 3.

As shown in fig. 6, a continuous black protruding structure 55 is provided on the inner surface of the baffle 53, the protruding structure 55 is made of silica gel, and the protruding structure 55 is one or a combination of a semicircular strip with a diameter of 1-5cm and a triangular strip with a length of 2-10cm and a height of 1-5 cm. The included angle between the baffle plate 53 and the transparent cover 4 is divided into 30 degrees, 60 degrees and 90 degrees, a brightness meter is placed at the center position of the transparent cover 4, the brightness of the combination of the a and the convex structures 55 which are semicircular strips, the b and the convex structures 55 which are triangular strips, and the c and the convex structures 55 which are semicircular strips and triangular strips are respectively measured, the measurement result a < c < b, and the convex structures 55 are preferably semicircular strips with continuous and uninterrupted diameters of 1-5 cm.

As shown in fig. 8, the bore hole 3D projection equipment for geography teaching of this embodiment all is equipped with the dirt blocking curtain of two sets of mutual symmetry attractions on horizontal rail 1 and the perpendicular rail 21, and the dirt blocking curtain has a plurality of linear arrangement's curtain check 11 to constitute, and the upper end of dirt blocking curtain is equipped with mounting bar 12, and when sliding does not appear on the track of horizontal rail 1 and perpendicular rail 21, the dirt blocking curtain coincides naturally, can prevent to advance the dust in the track, and the dirt blocking curtain adopts the design of the curtain check 11 of symmetry, does not influence the slip moreover.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.