CN210348179U

CN210348179U - Portable holographic projection device

Info

Publication number: CN210348179U
Application number: CN201921042459.2U
Authority: CN
Inventors: 丁春玲
Original assignee: Nanjing Eryu Culture Media Co Ltd
Current assignee: Nanjing Eryu Culture Media Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-17
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a portable holographic projection device, which comprises a projection box, a heat dissipation device, a rotating device and a lifting device, a fixed plate is fixedly welded at the center of the bottom wall in the projection box, a rotating device is arranged at the top of the fixed plate, the fixed plate is fixedly connected with a rotating disc through a rotating device, the top of the rotating disc is fixedly connected with a projection screen, the top of the projection screen penetrates through the top of the projection box, and extends to the upper part of the projection box, the left side wall in the projection box is fixedly connected with a fixed rod, the inside of the fixed rod is provided with a cavity, the inner part of the fixed rod is provided with a lifting device, the right side wall of the inner cavity of the projection box is provided with a through hole, a heat dissipation device is arranged in the through hole, the left end of the top of the projection box is provided with a movable rod, and the bottom of the movable rod penetrates through the top of the projection box and the top of the fixed rod in sequence and extends to the inside of the fixed rod. The portable holographic projection device is simple in structure, good in film watching effect and good in heat dissipation effect.

Description

Portable holographic projection device

Technical Field

The utility model belongs to the technical field of holographic projection, concretely relates to portable holographic projection arrangement.

Background

The holographic projection technology belongs to one of 3D technologies, and originally refers to a technology for recording and reproducing a real three-dimensional image of an object by utilizing an interference and diffraction principle; then, with the guidance of science fiction movies and commercial propaganda, the concept of holographic projection is gradually extended to commercial activities such as stage performance, exhibition and exhibition; however, the holography which we know at ordinary times is not the holography projection in the strict sense, but a holography projection technology of realizing 3D effect by using methods of Peltier ghost, edge blanking and the like; holographic projections can be classified into several categories as follows. Transmission holographic projection, such as the technique invented by lisse and uppetticx, is performed by irradiating a holographic projection film with laser light and then viewing the reconstructed image from another direction. Later on, rainbow holographic projections could be illuminated with white light to view the reconstructed image. Rainbow holographic projection is widely used in fields such as credit card security and anti-counterfeiting and product packaging. These types of rainbow holographic projections typically form a surface relief pattern in a plastic film and then reconstruct the image by back-coating the film with aluminum film to transmit light through the film. Another common holographic projection technique is known as reflection holographic projection, or dannesota holographic projection. This technique can reconstruct an image by illuminating the film from the same direction as the viewer with a white light source and reconstructing a color image by reflection. Specular holographic projection is a related art technique for producing three-dimensional images by controlling the motion of a mirror over a two-dimensional surface. It constructs the holographic image by controlling the reflected light or refracted light, and the lambertian holographic projection reconstructs the wave front by the diffracted light; the projection screen is usually placed on a fixed plate and cannot rotate angularly; the prior holographic projection device can not rotate the angle of the projection screen, thereby affecting the appreciation of audiences.

Therefore, in view of the current situation, it is urgently needed to design and produce a portable holographic projection device to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable holographic projection arrangement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a portable holographic projection arrangement, includes projection box, heat abstractor, rotary device and elevating gear, the fixed welding of the inside diapire center department of projection box has the fixed plate, the fixed plate top is provided with rotary device, the fixed plate passes through rotary device fixedly connected with rolling disc, rolling disc top fixed connection projection curtain, projection roof portion is run through to the projection roof portion to extend to its top, the inside left side wall fixedly connected with dead lever of projection box, the inside cavity that sets up of dead lever, the inside elevating gear that is provided with of dead lever, the through-hole has been seted up on the right side wall of projection box inner chamber, is provided with heat abstractor in the through-hole, projection roof portion left end is provided with the movable rod, the movable rod bottom runs through projection roof portion and dead lever top in proper order to extend to inside the dead lever.

Preferably, heat abstractor includes heat dissipation case, montant, rotating electrical machines, first rotation pole and flabellum, installs the heat dissipation case in the through-hole, the inside vertical montant of installing of heat dissipation case, heat dissipation incasement chamber left side portion center department fixedly connected with rotating electrical machines, the first rotation pole of shaft coupling fixedly connected with is passed through to rotating electrical machines's output, the equal fixed welding in both ends has the flabellum about the first rotation pole, heat dissipation case right side end sets up to the opening, heat dissipation case right side end opening part fixedly connected with dust screen.

Preferably, rotary device is including installation piece, first gear, driving motor, second dwang and second gear, fixed welding of fixed plate center department has the installation piece, installation piece top center department has seted up the mounting groove, and fixed welding of wall center department has the bearing frame in the mounting groove, the bearing frame top is rotated and is connected with the pivot, the first gear of pivot top fixedly connected with, first gear top and rolling disc top fixed welding, fixed plate top left side fixedly connected with driving motor, the driving motor output passes through shaft coupling fixedly connected with second dwang, second dwang top fixedly connected with second gear, second gear and first gear engagement.

Preferably, elevating gear includes linear electric motor, bearing, threaded rod and sliding block, the inside diapire fixedly connected with linear electric motor of dead lever, the linear electric motor output passes through shaft coupling fixedly connected with bearing, the bearing top rotates and is connected with the threaded rod, the spout has been seted up to dead lever inner chamber both sides wall, and sliding connection has the sliding block in the spout, sliding block top and movable rod bottom fixed connection, the movable rod top runs through the dead lever top to extend to its top, the threaded rod top runs through sliding block and movable rod bottom in proper order, and extend to inside the movable rod, threaded rod and movable rod and sliding block threaded connection, dead lever top and movable rod junction bond there is the rubber pad.

Preferably, the fixed welding in movable rod top has the extension board, extension board and projection box parallel arrangement, extension board bottom center department installs holographic projector, there is the universal wheel projection box bottom all around through connection piece swing joint.

The utility model discloses a technological effect and advantage: according to the portable holographic projection device, the driving motor is utilized to drive the second rotating rod and the second gear to rotate, and the second gear drives the first gear to rotate under the meshing action of the second gear and the first gear, so that the angular rotation of a projection screen is achieved, and the ornamental value of audiences is improved; through the arranged lifting device, the linear motor is used for driving the threaded rod to rotate, and the threaded rod is in threaded connection with the movable rod, so that the movable rod can be vertically adjusted in the fixed rod, and the film watching effect of audiences is improved; through the arranged heat dissipation device, the first rotating rod and the fan blades are driven to rotate by the rotating motor, and the air in the projection box is driven to circulate through the rotation of the fan blades, so that the heat in the projection box is discharged, circuit elements in the projection box are protected, and the usability of the device is improved; the portable holographic projection device is simple in structure, good in film watching effect and good in heat dissipation effect.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a cross-sectional view of the heat dissipating device of the present invention;

fig. 3 is a cross-sectional view of the lifting device of the present invention;

fig. 4 is an enlarged view of the structure a in fig. 1 according to the present invention.

In the figure: the projector comprises a projection box 1, a universal wheel 2, a heat radiator 3, a heat radiation box 31, a vertical rod 32, a rotating motor 33, a first rotating rod 34, fan blades 35, a dustproof net 36, a rotating device 4, a mounting block 41, a bearing seat 42, a rotating shaft 43, a first gear 44, a driving motor 45, a second rotating rod 46, a second gear 47, a lifting device 5, a linear motor 51, a bearing 52, a threaded rod 53, a sliding block 54, a rubber pad 55, a movable rod 6, a fixed plate 7, a rotating disc 8, a projection screen 9, a holographic projector 10, an extension plate 11 and a fixed rod 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a portable holographic projection device as shown in figures 1-4, which comprises a projection box 1, a heat dissipation device 3, a rotating device 4 and a lifting device 5, wherein a fixed plate 7 is fixedly welded at the center of the bottom wall in the projection box 1, the rotating device 4 is arranged at the top of the fixed plate 7, the fixed plate 7 is fixedly connected with a rotating disc 8 through the rotating device 4, the top of the rotating disc 8 is fixedly connected with a projection screen 9, the top of the projection screen 9 penetrates through the top of the projection box 1 and extends to the upper part of the projection box, a fixed rod 12 is fixedly connected with the left side wall in the projection box 1, the fixed rod 12 is internally arranged into a cavity, the lifting device 5 is arranged in the fixed rod 12, a through hole is arranged on the right side wall of the inner cavity of the projection box 1, the heat dissipation device 3 is arranged in the through hole, the bottom of the movable rod 6 sequentially penetrates through the top of the projection box 1 and the top of the fixed rod 12 and extends into the fixed rod 12.

Specifically, heat abstractor 3 includes heat dissipation case 31, montant 32, rotating electrical machines 33, first rotation pole 34 and flabellum 35, installs heat dissipation case 31 in the through-hole, the inside vertical montant 32 of installing of heat dissipation case 31, fixedly connected with rotating electrical machines 33 is located at heat dissipation case 31 inner chamber left side portion center, the first rotation pole 34 of shaft coupling fixedly connected with is passed through to rotating electrical machines 33's output, equal fixed welding in both ends has flabellum 35 about first rotation pole 34, heat dissipation case 31 right side end sets up to the opening, heat dissipation case 31 right side end opening part fixedly connected with dust screen 36.

Specifically, rotary device 4 is including installation piece 41, first gear 44, driving motor 45, second dwang 46 and second gear 47, fixed welding of 7 centers of fixed plate department has installation piece 41, the installation groove has been seted up at 41 top centers of installation piece, and fixed welding of bottom wall center department has bearing frame 42 in the installation groove, bearing frame 42 top is rotated and is connected with pivot 43, the first gear 44 of pivot 43 top fixedly connected with, the fixed welding in first gear 44 top and the 8 tops of rolling disc, fixed plate 7 top left side fixedly connected with driving motor 45, driving motor 45 output passes through shaft coupling fixedly connected with second dwang 46, second dwang 46 top fixedly connected with second gear 47, second gear 47 and first gear 44 mesh.

Specifically, the lifting device 5 comprises a linear motor 51, a bearing 52, a threaded rod 53 and a sliding block 54, the linear motor 51 is fixedly connected to the bottom wall inside the fixed rod 12, the model of the linear motor is HMD082P1U, the output end of the linear motor 51 is fixedly connected with the bearing 52 through a coupler, the threaded rod 53 is rotatably connected to the top of the bearing 52, sliding grooves are formed in two side walls of the inner cavity of the fixed rod 12, the sliding block 54 is slidably connected in the sliding grooves, when the height of the movable rod 6 is adjusted, the sliding block 54 slides in the sliding grooves and can play a role of buffering, the top of the sliding block 54 is fixedly connected with the bottom of the movable rod 6, the top of the movable rod 6 penetrates through the top of the fixed rod 12 and extends to the upper side of the fixed rod, the top of the threaded rod 53 penetrates through the bottoms of the sliding block, the joint of the top of the fixed rod 12 and the movable rod 6 is bonded with a rubber pad 55.

Specifically, 6 top fixed welding of movable rod has extension board 11, extension board 11 and 1 parallel arrangement of projection box, extension board 11 bottom center department installs holographic projector 10, and the holographic projector model is F50, there is universal wheel 2 projection box 1 bottom all around through connection piece swing joint.

Specifically, when the portable holographic projection device is used, the device can be pushed to a projection place, the height of the holographic projection device 10 is firstly adjusted, the linear motor 51 is started to drive the threaded rod 53 to rotate, the threaded rod 53 is in threaded connection with the movable rod 6, the movable rod 6 moves up and down in the fixed rod 12, when the height is adjusted to a proper height, projection is carried out, in the projection process, angular rotation can be carried out on the projection screen 9, the driving motor 45 is started firstly, the driving motor 45 drives the second rotating rod 46 and the second gear 47 to rotate, the second gear 47 and the first gear 44 are in meshing action, the second gear 47 drives the first gear 44 to rotate, the rotating disk 8 is driven to rotate, finally, the projection screen 9 is subjected to angular adjustment, the audience ornamental performance is improved, and when the device is used, the device can be internally cooled, by starting the rotating motor 33, the rotating motor 33 drives the first rotating rod 34 and the fan blades 35 to rotate, so that the wind heat generated by the rotating fan blades 35 on the circuit elements in the projection box 1 is led out, and the usability of the device is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a portable holographic projection arrangement, includes projection box (1), heat abstractor (3), rotary device (4) and elevating gear (5), its characterized in that: the projection box is characterized in that a fixed plate (7) is fixedly welded at the center of the inner bottom wall of the projection box (1), a rotating device (4) is arranged at the top of the fixed plate (7), the fixed plate (7) is fixedly connected with a rotating disc (8) through the rotating device (4), the top of the rotating disc (8) is fixedly connected with a projection screen (9), the top of the projection screen (9) penetrates through the top of the projection box (1) and extends to the upper part of the projection box, a fixed rod (12) is fixedly connected to the inner left side wall of the projection box (1), the inner part of the fixed rod (12) is arranged into a cavity, a lifting device (5) is arranged inside the fixed rod (12), a through hole is formed in the right side wall of the inner cavity of the projection box (1), a heat dissipation device (3) is arranged in the through hole, a movable rod (6) is arranged at the left end of the top of the, and extends to the inside of the fixing rod (12).

2. A portable holographic projection device according to claim 1, wherein: the heat dissipation device (3) comprises a heat dissipation box (31), a vertical rod (32), a rotating motor (33), a first rotating rod (34) and fan blades (35), the heat dissipation box (31) is installed in a through hole, the vertical rod (32) is installed inside the heat dissipation box (31), the rotating motor (33) is fixedly connected with the center of the left side portion of an inner cavity of the heat dissipation box (31), the output end of the rotating motor (33) is fixedly connected with the first rotating rod (34) through a coupler, the fan blades (35) are fixedly welded at the upper end and the lower end of the first rotating rod (34), the right side end of the heat dissipation box (31) is arranged to be an opening, and the right side end of the heat dissipation box (31) is fixedly connected.

3. A portable holographic projection device according to claim 1, wherein: the rotating device (4) comprises an installation block (41), a first gear (44), a driving motor (45), a second rotating rod (46) and a second gear (47), the center of the fixing plate (7) is fixedly welded with the installation block (41), the center of the top of the installation block (41) is provided with an installation groove, the center of the bottom wall of the installation groove is fixedly welded with a bearing seat (42), the top of the bearing seat (42) is rotatably connected with a rotating shaft (43), the top of the rotating shaft (43) is fixedly connected with the first gear (44), the top of the first gear (44) is fixedly welded with the top of the rotating disc (8), the left side of the top of the fixing plate (7) is fixedly connected with the driving motor (45), the output end of the driving motor (45) is fixedly connected with the second rotating rod (46) through a coupler, and the top of the second rotating rod (46, the second gear (47) meshes with the first gear (44).

4. A portable holographic projection device according to claim 1, wherein: the lifting device (5) comprises a linear motor (51), a bearing (52), a threaded rod (53) and a sliding block (54), the bottom wall of the inside of the fixed rod (12) is fixedly connected with the linear motor (51), the output end of the linear motor (51) is fixedly connected with the bearing (52) through a coupler, the top of the bearing (52) is rotatably connected with the threaded rod (53), the two side walls of the inner cavity of the fixed rod (12) are provided with sliding grooves, the sliding blocks (54) are slidably connected in the sliding grooves, the top of the sliding blocks (54) is fixedly connected with the bottom of the movable rod (6), the top of the movable rod (6) penetrates through the top of the fixed rod (12) and extends to the upper part of the fixed rod, the top of the threaded rod (53) sequentially penetrates through the bottoms of the sliding blocks (54) and the movable rod (6) and extends to the inside, the joint of the top of the fixed rod (12) and the movable rod (6) is bonded with a rubber pad (55).

5. A portable holographic projection device according to claim 1, wherein: the fixed welding in movable rod (6) top has extension board (11), extension board (11) and projection box (1) parallel arrangement, extension board (11) bottom center department installs holographic projector (10), there are universal wheel (2) projection box (1) bottom through connection piece swing joint all around.