CN106950781B - Easy-to-adjust holographic projection device - Google Patents
Easy-to-adjust holographic projection device Download PDFInfo
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- CN106950781B CN106950781B CN201710265350.4A CN201710265350A CN106950781B CN 106950781 B CN106950781 B CN 106950781B CN 201710265350 A CN201710265350 A CN 201710265350A CN 106950781 B CN106950781 B CN 106950781B
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- gear wheel
- wheel disc
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/027—Ceiling supports
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
Abstract
The invention discloses an easily-adjusted holographic projection device which comprises a support mechanism, wherein a motor is fixed on the support mechanism, a rotor of the motor is connected with a lead screw, a nut sleeve is sleeved on the lead screw, a fixed plate is fixed on the nut sleeve, a support is fixed on the lower surface of the fixed plate, a rotary steering engine is fixed on the support, a first gear disc is fixed on a rotating head of the rotary steering engine, a telescopic rod is further arranged on the lower surface of the fixed plate, one end of the telescopic rod is fixed on the lower surface of the fixed plate, a second gear disc is rotatably arranged at the other end of the telescopic rod, the upper surface of a projector is connected with the lower surface of the second gear disc, and the first gear disc is connected with the second gear disc through a belt. The problem of ordinary projection equipment be difficult for adjusting the position, the motion of projecting apparatus is unstable moreover, and the installation of whole projection equipment is built comparatively complicacy, can not the rational utilization place is solved.
Description
Technical Field
The invention relates to the technical field of holographic projection, in particular to an easily-adjusted holographic projection device.
Background
Holographic projection technology, also known as virtual imaging technology, is a technology that uses the principles of interference and diffraction to record and reproduce a true three-dimensional image of an object. The holographic projection technology can not only generate a stereoscopic aerial illusion, but also enable the illusion to be generated with a performer to complete the performance together, and generate an impressive performance effect. The method has the advantages of wide application range, such as product exhibition, automobile clothing release, stage programs, bar entertainment, and place projection. Holographic projection mainly relies on projection equipment to accomplish holographic projection, and ordinary projection equipment is difficult for adjusting the position, and the motion of projecting apparatus is unstable moreover, and whole projection equipment's installation is established comparatively complicacy, can not be reasonable utilize the place.
Therefore, the present invention is directed to a holographic projection apparatus with convenient position adjustment, stable movement and simple assembly.
Disclosure of Invention
The invention aims to provide an easily-adjusted holographic projection device, which solves the problems that the common projection device is not easy to adjust the direction, the motion of a projector is unstable, the installation and the construction of the whole projection device are complex, and the field cannot be reasonably utilized.
In order to achieve the purpose, the invention provides an easily-adjusted holographic projection device, which comprises a support mechanism, wherein a motor is fixed on the support mechanism, a rotor of the motor is connected with a lead screw, the lead screw is arranged along the horizontal direction and is coaxially arranged with the rotor of the motor, a nut sleeve is sleeved on the lead screw, a fixing plate arranged along the horizontal direction is fixed on the nut sleeve and is positioned below the lead screw, a support is fixed on the lower surface of the fixing plate, a rotary steering engine is fixed on the support, a first gear disc is fixed on a rotating head of the rotary steering engine, a telescopic rod arranged along the vertical direction is further arranged on the lower surface of the fixing plate, one end of the telescopic rod is fixed on the lower surface of the fixing plate, and a second gear disc is rotatably arranged at the other end of the telescopic rod, the second gear wheel disc is coaxial with the telescopic link, the upper surface of the projector is connected with the lower surface of the second gear wheel disc, and the first gear wheel disc is connected with the second gear wheel disc through a belt, so that the rotary steering gear can drive the projector to rotate by taking the telescopic link as a shaft through the belt.
Preferably, the lower surface of the second gear wheel disc is connected with the projector, the upper surface of the second gear wheel disc is recessed downwards to form a circular groove, the inner side surface of the circular groove is recessed inwards along the radial direction of the second gear wheel disc to form an annular groove, one end of the telescopic rod, which is close to the projector, is fixed with an annular protrusion which is coaxial with the telescopic rod, at least part of the telescopic rod is located inside the circular groove, and the annular protrusion is clamped in the annular groove, so that the second gear wheel disc can rotate by taking the telescopic rod as a shaft.
Preferably, the support mechanism comprises a horizontal plate, the motor is fixed on the surface of the horizontal plate, a through groove is further formed in the surface of the horizontal plate, and the telescopic rod at least partially penetrates through the through groove and is connected with the projector;
the transverse plate surface is fixed with first mounting plate and second mounting plate in order along the length direction of transverse plate, the lead screw runs through in proper order first mounting plate with the second mounting plate.
Preferably, the surface of the lead screw is provided with an external thread structure, the surface of the first support plate is provided with a first through hole, the inner side surface of the first through hole is provided with a first internal thread structure matched with the external thread structure, the surface of the second support plate is provided with a second through hole, the inner side surface of the second through hole is provided with a second internal thread structure matched with the external thread structure, and the lead screw sequentially penetrates through the first through hole and the second through hole.
Preferably, the diaphragm both ends are connected with first mounting panel and the second mounting panel that sets up along the horizontal direction through the riser respectively, just first mounting panel with all be provided with a plurality of inflation screws on the second mounting panel.
Preferably, a first inserting rod arranged along the horizontal direction is fixed on the end face, far away from the vertical plate, of the first mounting plate;
the end face, far away from the vertical plate, of the second mounting plate is inwards recessed to form a first slot matched with the first inserting rod.
Preferably, the lateral surfaces of the transverse plate along the length direction are a first lateral surface and a second lateral surface respectively, a second inserting rod is fixed on the first lateral surface, and a second slot matched with the second inserting rod is formed in the second lateral surface in an inwards recessed mode.
According to the technical scheme, the invention provides easily-adjusted holographic projection equipment, which comprises a support mechanism, wherein a motor is fixed on the support mechanism, a rotor of the motor is connected with a lead screw, the lead screw is arranged along the horizontal direction and is coaxially arranged with the rotor of the motor, a nut sleeve is sleeved on the lead screw, a fixing plate arranged along the horizontal direction is fixed on the nut sleeve and is positioned below the lead screw, a support is fixed on the lower surface of the fixing plate, a rotary steering engine is fixed on the support, a first gear disc is fixed on a rotating head of the rotary steering engine, a telescopic rod arranged along the vertical direction is further arranged on the lower surface of the fixing plate, one end of the telescopic rod is fixed on the lower surface of the fixing plate, and a second gear disc is rotatably arranged at the other end of the telescopic rod, the second gear wheel disc is coaxial with the telescopic rod, the upper surface of the projector is connected with the lower surface of the second gear wheel disc, and the first gear wheel disc is connected with the second gear wheel disc through a belt, so that the rotary steering engine can drive the projector to rotate by taking the telescopic rod as a shaft through the belt; during installation, the support mechanism is fixed at the top of the exhibition hall, the displacement of the projector is controlled in a lead screw transmission mode, the purpose of high efficiency and stability can be achieved, the projector is not prone to shaking in the displacement process, the holographic projection effect is improved, the projector is connected to the fixing plate through the telescopic rod, and during installation, the distance between the projector and the ground can be adjusted, so that focusing is facilitated; the fixed plate is also provided with a rotary steering engine which can drive the projector to rotate in the horizontal direction through a belt, so that the projector can be conveniently focused, and the requirements of more projections can be met; in addition, the holographic projection equipment provided by the invention has a simple structure and is convenient to assemble.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a holographic projection apparatus provided by the present invention;
FIG. 2 is a side view of a holographic projection device provided by the present invention;
fig. 3 is a structural diagram of a second gear wheel in the holographic projection apparatus provided by the present invention.
Description of the reference numerals
1-support mechanism 2-motor
3-lead screw 4-nut sleeve
5-fixed plate 6-telescopic rod
7-projector 8-support
601-annular projection 701-second gear wheel disk
801-rotary steering engine 802-first gear disc
803-belt 101-first support plate
102-second bracket plate 103-expansion screw
104-first mounting plate 105-riser
106-first plunger 107-second mounting plate
108-second plunger 109-cross plate
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "horizontal direction, vertical direction" and the like included in the terms merely represent the orientation of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
As shown in fig. 1-3: the invention provides holographic projection equipment easy to adjust, which comprises a support mechanism 1, wherein a motor 2 is fixed on the support mechanism 1, a rotor of the motor 2 is connected with a lead screw 3, the lead screw 3 is arranged along the horizontal direction, the lead screw 3 and the rotor of the motor 2 are coaxially arranged, a nut sleeve 4 is sleeved on the lead screw 3, a fixing plate 5 arranged along the horizontal direction is fixed on the nut sleeve 4, the fixing plate 5 is positioned below the lead screw 3, a support 8 is fixed on the lower surface of the fixing plate 5, a rotary steering engine 801 is fixed on the support 8, a first gear disc 802 is fixed on a rotating head of the rotary steering engine 801, a telescopic rod 6 arranged along the vertical direction is also arranged on the lower surface of the fixing plate 5, one end of the telescopic rod 6 is fixed on the lower surface of the fixing plate 5, the other end is rotationally provided with a second gear wheel disc 701, the second gear wheel disc 701 and the telescopic rod 6 are coaxially arranged, the upper surface of the projector 7 is connected with the lower surface of the second gear wheel disc 701, the first gear wheel disc 802 is connected with the second gear wheel disc 701 through a belt 803, and therefore the rotary steering engine 801 can drive the projector 7 to rotate by taking the telescopic rod 6 as a shaft. During installation, the support mechanism is fixed at the top of the exhibition hall, the displacement of the projector is controlled in a lead screw transmission mode, the purpose of high efficiency and stability can be achieved, the projector is not prone to shaking in the displacement process, the holographic projection effect is improved, the projector is connected to the fixing plate through the telescopic rod, and during installation, the distance between the projector and the ground can be adjusted, so that focusing is facilitated; the fixed plate is also provided with a rotary steering engine which can drive the projector to rotate in the horizontal direction through a belt, so that the projector can be conveniently focused, and the requirements of more projections can be met; in addition, the holographic projection equipment provided by the invention has a simple structure and is convenient to assemble.
In a preferred embodiment of the present invention, the specific connection manner between the second gear wheel disc 701 and the telescopic rod 6 is as follows: the lower surface of the second gear wheel disc 701 is connected with the projector 7, a circular groove is formed in the downward concave upper surface of the second gear wheel disc, the inner side surface of the circular groove is formed in an annular groove in the inward concave radial direction of the second gear wheel disc 701, an annular protrusion 601 which is coaxially arranged with the telescopic rod 6 is fixed to one end of the telescopic rod 6, at least part of the telescopic rod 6 is located inside the circular groove, the annular protrusion 601 is clamped in the annular groove, and therefore the second gear wheel disc 701 can rotate with the telescopic rod 6 as an axis.
In a preferred embodiment of the present invention, in order to further facilitate the screw transmission of the projector 7, the bracket mechanism 1 includes a horizontal plate 109, the motor 2 is fixed on the surface of the horizontal plate 109, a through slot is further provided on the surface of the horizontal plate 109, and the telescopic rod 6 at least partially penetrates through the through slot and is connected to the projector 7; a first bracket plate 101 and a second bracket plate 102 are sequentially fixed on the surface of the transverse plate 109 along the length direction of the transverse plate 109, and the screw rod 3 sequentially penetrates through the first bracket plate 101 and the second bracket plate 102.
In a preferred embodiment of the present invention, in order to further facilitate the screw transmission of the projector 7, the surface of the screw 3 is provided with an external thread structure, the surface of the first bracket plate 101 is provided with a first through hole, the inner side surface of the first through hole is provided with a first internal thread structure matching with the external thread structure, the surface of the second bracket plate 102 is provided with a second through hole, the inner side surface of the second through hole is provided with a second internal thread structure matching with the external thread structure, and the screw 3 sequentially penetrates through the first through hole and the second through hole.
In a preferred embodiment of the present invention, in order to facilitate the assembly and installation of the bracket mechanism 1, a first mounting plate 104 and a second mounting plate 107 arranged along the horizontal direction are respectively connected to two ends of the horizontal plate 109 through vertical plates 105, and a plurality of expansion screws 103 are arranged on both the first mounting plate 104 and the second mounting plate 107, so that the bracket mechanism 1 can be fixed on the ceiling by the expansion screws 103.
In a preferred embodiment of the present invention, in order to enable a plurality of holographic projection interaction devices to be spliced together and meet more projection requirements, a first inserting rod 106 arranged along a horizontal direction is fixed on an end surface of the first mounting plate 104 away from the vertical plate 105; the end face of the second mounting plate 107, which is far away from the vertical plate 105, is recessed inwards to form a first slot matched with the first inserting rod 106, and the plurality of support mechanisms 1 can be transversely spliced by inserting the first inserting rod 106 into the first slot.
In a preferred embodiment of the present invention, in order to splice a plurality of holographic projection interaction devices together and meet more projection requirements, the lateral surfaces of the transverse plate 109 along the length direction thereof are respectively a first lateral surface and a second lateral surface, the first lateral surface is fixed with a second insertion rod 108, the second lateral surface is recessed inwards to form a second insertion slot matched with the second insertion rod 108, and a plurality of support mechanisms 1 can be spliced longitudinally by inserting the second insertion rod 108 into the second insertion slot.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (5)
1. The holographic projection equipment easy to adjust is characterized by comprising a support mechanism (1), wherein a motor (2) is fixed on the support mechanism (1), a lead screw (3) is connected to a rotor of the motor (2), the lead screw (3) is arranged in the horizontal direction, the lead screw (3) and the rotor of the motor (2) are coaxially arranged, a nut sleeve (4) is sleeved on the lead screw (3), a fixing plate (5) arranged in the horizontal direction is fixed on the nut sleeve (4), the fixing plate (5) is positioned below the lead screw (3), a support (8) is further fixed on the lower surface of the fixing plate (5), a rotary steering engine (801) is fixed on the support (8), a first gear plate (802) is fixed on a rotary head of the rotary steering engine (801), a telescopic rod (6) arranged in the vertical direction is further arranged on the lower surface of the fixing plate (5), one end of the telescopic rod (6) is fixed on the lower surface of the fixing plate (5), the other end of the telescopic rod is rotatably provided with a second gear wheel disc (701), the second gear wheel disc (701) is coaxially arranged with the telescopic rod (6), the upper surface of the projector (7) is connected with the lower surface of the second gear wheel disc (701), and the first gear wheel disc (802) is connected with the second gear wheel disc (701) through a belt (803), so that the rotary steering engine (801) can drive the projector (7) to rotate by taking the telescopic rod (6) as a shaft through the belt (803);
the lower surface of the second gear wheel disc (701) is connected with the projector (7), the upper surface of the second gear wheel disc is recessed downwards to form a circular groove, the inner side surface of the circular groove is recessed inwards along the radial direction of the second gear wheel disc (701) to form an annular groove, an annular protrusion (601) which is coaxial with the telescopic rod (6) is fixed at one end, close to the projector (7), of the telescopic rod (6), at least part of the telescopic rod (6) is located inside the circular groove, and the annular protrusion (601) is clamped in the annular groove, so that the second gear wheel disc (701) can rotate by taking the telescopic rod (6) as a shaft;
the bracket mechanism (1) comprises a horizontal plate (109) which is horizontally arranged, the motor (2) is fixed on the surface of the horizontal plate (109), a through groove is further formed in the surface of the horizontal plate (109), and at least part of the telescopic rod (6) penetrates through the through groove and is connected with the projector (7);
the surface of the transverse plate (109) is sequentially fixed with a first support plate (101) and a second support plate (102) along the length direction of the transverse plate (109), and the screw rod (3) sequentially penetrates through the first support plate (101) and the second support plate (102).
2. The holographic projection device according to claim 1, characterized in that the surface of the lead screw (3) is provided with an external thread structure, the surface of the first support plate (101) is provided with a first through hole, the inner side of the first through hole is provided with a first internal thread structure matched with the external thread structure, the surface of the second support plate (102) is provided with a second through hole, the inner side of the second through hole is provided with a second internal thread structure matched with the external thread structure, and the lead screw (3) penetrates through the first through hole and the second through hole in sequence.
3. The holographic projection device of claim 1, wherein a first mounting plate (104) and a second mounting plate (107) are connected to both ends of the horizontal plate (109) through vertical plates (105), and a plurality of expansion screws (103) are disposed on the first mounting plate (104) and the second mounting plate (107).
4. The holographic projection device of claim 3, characterized in that a first insert rod (106) arranged in a horizontal direction is fixed on an end surface of the first mounting plate (104) far away from the vertical plate (105);
the end face, far away from the vertical plate (105), of the second mounting plate (107) is recessed inwards to form a first slot matched with the first inserting rod (106).
5. The holographic projection device of claim 4, wherein the lateral plate (109) has a first lateral surface and a second lateral surface along the length direction thereof, the first lateral surface is fixed with a second insertion rod (108), and the second lateral surface is recessed to form a second slot matched with the second insertion rod (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265350.4A CN106950781B (en) | 2017-04-21 | 2017-04-21 | Easy-to-adjust holographic projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265350.4A CN106950781B (en) | 2017-04-21 | 2017-04-21 | Easy-to-adjust holographic projection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106950781A CN106950781A (en) | 2017-07-14 |
| CN106950781B true CN106950781B (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265350.4A Active CN106950781B (en) | 2017-04-21 | 2017-04-21 | Easy-to-adjust holographic projection device |
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| Country | Link |
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| CN (1) | CN106950781B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956987A (en) * | 2017-12-08 | 2018-04-24 | 陈晓岚 | Wall-mounted projector mount |
| CN107956988A (en) * | 2017-12-08 | 2018-04-24 | 叶晓燕 | Home projector instrument stent |
| CN108167621A (en) * | 2017-12-29 | 2018-06-15 | 常州校果信息服务有限公司 | A kind of projection arrangement of multi-faceted adjusting |
| CN110220096A (en) * | 2019-05-06 | 2019-09-10 | 深圳市华芯技研科技有限公司 | A kind of information collecting device of the intelligent automobile with multi-angle collecting function |
| CN113775890B (en) * | 2020-06-10 | 2023-08-22 | 青岛海信激光显示股份有限公司 | Laser projection equipment |
| CN112289084B (en) * | 2020-11-04 | 2022-04-29 | 山东轻工职业学院 | Multimedia teaching equipment convenient to adjust |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5381375B2 (en) * | 2009-06-18 | 2014-01-08 | セイコーエプソン株式会社 | Projector ceiling hanger |
| JP2013199260A (en) * | 2012-02-21 | 2013-10-03 | Sharp Corp | Posture control device, and load moving device mounting the same |
| CN104280993A (en) * | 2014-10-27 | 2015-01-14 | 成都艾塔科技有限公司 | Ceiling type projector cross hanging bracket |
| CN204462620U (en) * | 2015-02-13 | 2015-07-08 | 深圳市祈锦通信技术有限公司 | A kind of wireless charging projector with packoff |
| CN105465569B (en) * | 2015-12-20 | 2017-11-24 | 重庆路格科技有限公司 | Automatic adjustment projecting apparatus |
| CN105674019A (en) * | 2016-03-24 | 2016-06-15 | 徐兵 | Projector fixing device capable of being adjusted horizontally |
| CN205655077U (en) * | 2016-06-01 | 2016-10-19 | 慧投科技（深圳）有限公司 | Hoist and mount projecting apparatus with fine setting function |
| CN206684465U (en) * | 2017-04-21 | 2017-11-28 | 芜湖威灵数码科技有限公司 | The line holographic projections equipment easily adjusted |
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2017
- 2017-04-21 CN CN201710265350.4A patent/CN106950781B/en active Active
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| CN106950781A (en) | 2017-07-14 |
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Effective date of registration: 20240320 Address after: 542800 Group 5, Xinyan Village, Liantang Town, Babu District, Hezhou City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Nanxi Technology Co.,Ltd. Country or region after: Zhong Guo Address before: 201400 Building 1, 1036 xizha Road, Fengxian District, Shanghai Patentee before: Dawson Industrial (Shanghai) Co.,Ltd. Country or region before: Zhong Guo |
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