CN114236960A - Visual design projection device - Google Patents
Visual design projection device Download PDFInfo
- Publication number
- CN114236960A CN114236960A CN202111570888.9A CN202111570888A CN114236960A CN 114236960 A CN114236960 A CN 114236960A CN 202111570888 A CN202111570888 A CN 202111570888A CN 114236960 A CN114236960 A CN 114236960A
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- China
- Prior art keywords
- sliding
- motor
- vertical
- gear
- placing table
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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
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention discloses a visual design projection device, which belongs to the field of visual design and comprises a bottom plate, wherein a placing table is arranged in the middle of the top surface of the bottom plate and is driven by a rotating mechanism, a supporting frame is arranged on one side of the placing table and is driven by a moving mechanism, a projection cloth mechanism opposite to the supporting frame is arranged on the other side of the placing table, the projection cloth mechanism is matched with a winding mechanism, a movable seat is arranged on the supporting frame through a transverse adjusting mechanism and a vertical adjusting mechanism, and an adjustable light source is arranged on one side, close to the placing table, of the movable seat. The invention can realize convenient rotary arrangement of the works, and is matched with the light source with adjustable distance, height and angle and the projection cloth with adjustable height, thereby meeting the requirement of the projection operation of the works in multiple angles and positions.
Description
Technical Field
The invention relates to the technical field of visual design, in particular to a visual design projection device.
Background
Visual design is a manifestation of subjective forms of eye function and results. Unlike the visual transmission design, the visual transmission design is a part of the visual design, mainly expressed by the transmitted object, namely the audience, and lacks the appeal for the visual demand factor of the designer. Since visual transmission is transmitted to both the visual audience and the designer, intensive research on visual transmission has focused on the visual aspect feeling, which is called more appropriate visual design.
The projection device is a projection device that projects a product processed by a designer to a predetermined position after enlarging the contour of the product using an optical source.
Through the retrieval, chinese patent No. CN213690197U discloses a visual design projection device, installs the connecting shell including the outside of support body, and the below of connecting shell is provided with first pivot, the bottom of first pivot is fixed with the outer pillar, and installs the stopper in the top of outer pillar, first slider is all installed to the both sides of outer pillar, and the below of first slider leaves first spout in advance, the inner support is installed to the intermediate position of first spout, and the top of inner support leaves the spacing groove in advance, the fixed block is installed to the bottom of inner support, and the inboard of fixed block installs the second pivot.
The prior art visual design projection device has the following defects in practical use: the existing projection device focuses on protecting the lens, but has poor effect on projecting the work and is not beneficial to projecting the work in multiple angles, so the invention provides the projection device with visual design.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a visual design projection device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a visual design projection arrangement, includes the bottom plate, the top surface middle part of bottom plate is equipped with places the platform, it passes through the rotary mechanism drive to place the platform, the one side of placing the platform is equipped with the support frame, the support frame passes through the moving mechanism drive, the opposite side of placing the platform is equipped with the projection cloth mechanism relative with the support frame, projection cloth mechanism and winding mechanism are mutually supported, the support frame is equipped with mobilizable sliding seat through horizontal adjustment mechanism and vertical adjustment mechanism, the sliding seat is equipped with adjustable light source near the one side of placing the platform.
Further, the rotating mechanism comprises a rotating motor arranged on the top surface of the bottom plate, the placing table is rotatably arranged on the top surface of the bottom plate, a gear ring is arranged on the outer side of the placing table, a driving gear is arranged at the driving end of the rotating motor, and the driving gear is meshed with the gear ring;
the moving mechanism comprises a rack rail and a sliding rail which are fixed with the top surface of the bottom plate, the bottom of the support frame is respectively in sliding fit with the rack rail and the sliding rail, a moving motor is installed at the bottom of the support frame, a moving gear is installed at the driving end of the moving motor, and the moving gear is meshed with the rack rail;
the transverse adjusting mechanism comprises two first sliding seats which are vertically and slidably arranged on the inner side of the supporting frame, a first lead screw is arranged between the two first sliding seats, the first lead screw is transversely and threadedly arranged with the movable seat, and the first lead screw is driven by a transverse motor;
the vertical adjusting mechanism comprises two second sliding seats which transversely slide on the inner side of the supporting frame, a second lead screw is arranged between the two second sliding seats, the second lead screw is vertically and threadedly arranged with the movable seat, and the second lead screw is driven by a vertical motor;
the adjustable light source comprises a first motor, the first motor is installed on one side, away from the placing table, of the movable seat, the driving end of the first motor extends to one side, close to the placing table, of the movable seat and is installed with the vertical rotating seat, the vertical rotating seat is rotatably provided with the transverse rotating seat, the transverse rotating seat is driven by the second motor, and one side, close to the placing table, of the transverse rotating seat is provided with the light source;
the projection cloth mechanism comprises two sliding groove frames symmetrically arranged on the top surface of the bottom plate, lifting grooves are formed in the middle parts of the two sliding groove frames, spring sliding rods are arranged in the lifting grooves, sliding blocks are arranged on the spring sliding rods in a sliding mode, an ejector rod is arranged between the two sliding blocks and located on the upper sides of the two sliding groove frames, bottom rods are arranged on the lower sides of the two sliding groove frames, the lower sides of the ejector rods are mounted with a cloth body, and the cloth body is wound to the rear side of the bottom rods from the lower sides of the bottom rods, namely one side, away from the placing table, of the projection cloth mechanism;
the winding mechanism comprises a winding roller which is rotatably arranged on the upper side of the bottom plate, one end, far away from the projection cloth mechanism, of the cloth body is wound on the winding roller, and the winding roller is driven by a winding motor.
Further, the spring slide bar comprises a vertical bar body and a spring wound on the bar body, and the sliding block is installed with the bar body in a sliding mode and located on the upper portion of the bar body.
Furthermore, one end of the first screw rod is provided with a first gear, the driving end of the transverse motor is also provided with a first gear, and the two first gears are meshed with each other;
and a second gear is installed at one end of the second screw rod, a second gear is also installed at the driving end of the vertical motor, and the two second gears are meshed with each other.
Further, a transverse sliding rod is installed between the two first sliding seats, and the transverse sliding rod and the movable seat are installed in a transverse sliding mode;
two install vertical slide bar jointly between the second slide, vertical slide bar and the vertical slidable mounting of sliding seat.
Further, a worm wheel is installed at one end of the winding roller, a worm is installed at the driving end of the winding motor, and the worm wheel are meshed with each other.
Further, the rack rail comprises a rail plate fixed with the top surface of the bottom plate, a rack is fixed in the middle of one side, away from the sliding rail, of the rail plate, and the rack is meshed with a moving gear installed at the driving end of the moving motor.
Further, the first sliding seat and the second sliding seat are both of U-shaped structures.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can conveniently place works and rotate the works so as to be matched with a light source for projection.
2. The distance, the height and the angle of the light source relative to the work can be adjusted, so that the work can be projected in multiple angles.
3. The height of the projection cloth can be adaptively adjusted according to the distance, the height and the angle of the light source relative to the work, and the requirement of multi-angle projection of the work is met.
In conclusion, the rotary projection device can realize convenient rotary arrangement of works, and is matched with the light source with adjustable distance, height and angle and the projection cloth with adjustable height, so that the multi-angle and position projection operation of the works is met.
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.
FIG. 1 is a schematic view of a first state of a visual design projection apparatus according to the present invention;
FIG. 2 is a structural diagram of a second state of a visual design projection apparatus according to the present invention;
FIG. 3 is a schematic structural diagram of a third state of a visual design projection apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of a projection cloth mechanism according to the present invention;
FIG. 5 is a schematic diagram of the combination of the winding mechanism and the projection cloth mechanism of the present invention;
FIG. 6 is a schematic diagram of the movement of the support frame by the moving mechanism according to the present invention;
FIG. 7 is a schematic view of the rotating mechanism of the present invention rotating the placing table;
FIG. 8 is a schematic view of the combination of the lateral adjustment mechanism and the vertical adjustment mechanism of the present invention;
FIG. 9 is a rear side schematic view of FIG. 8;
fig. 10 is a schematic structural diagram of an adjustable light source.
In the figure: 1, 2, 201, 202, 203, 3, 4, 401, 402, 403, 404, 405, 406, 5, 6, 601, first, 602, first, 603, 7, 701, second, 702, second, 703, vertical, 8, 801, 802, 803, 9, 901, 902, 903, 904, 10, 1001, first, 1002, 1003, 1004, two, 1005, light source.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-10, a visual design projection device comprises a bottom plate 1, a placing table 2 is arranged in the middle of the top surface of the bottom plate 1, the placing table 2 is driven by a rotating mechanism, a supporting frame 3 is arranged on one side of the placing table 2, the supporting frame 3 is driven by a moving mechanism 8, a projection cloth mechanism 4 opposite to the supporting frame 3 is arranged on the other side of the placing table 2, the projection cloth mechanism 4 is matched with a winding mechanism 9, a movable seat 5 is arranged on the supporting frame 3 through a transverse adjusting mechanism 6 and a vertical adjusting mechanism 7, and an adjustable light source 10 is arranged on one side, close to the placing table 2, of the movable seat 5.
The rotating mechanism comprises a rotating motor 201 installed on the top surface of the bottom plate 1, the placing table 2 and the top surface of the bottom plate 1 are installed in a rotating mode, a toothed ring 203 is installed on the outer side of the placing table 2, a driving gear 202 is installed at the driving end of the rotating motor 201, and the driving gear 202 is meshed with the toothed ring 203;
works are placed on the placing table 2, the driving gear 202 and the toothed ring 203 are driven to be meshed through the rotating motor 201, and therefore the placing table 2 and the works placed on the placing table rotate, the angle of the works is adjusted, and subsequent projection operation is facilitated.
The moving mechanism 8 comprises a rack rail 801 and a sliding rail 802 fixed on the top surface of the bottom plate 1, the bottom of the support frame 3 is respectively matched with the rack rail 801 and the sliding rail 802 in a sliding manner, the bottom of the support frame 3 is provided with a moving motor 803, the driving end of the moving motor 803 is provided with a moving gear, and the moving gear is meshed with the rack rail 801; the rack rail 801 comprises a rail plate fixed on the top surface of the base plate 1, a rack is fixed in the middle of one side of the rail plate away from the sliding rail 802, and the rack is meshed with a moving gear installed at the driving end of a moving motor 803.
The transverse adjusting mechanism 6 comprises two first sliding seats 601 which are vertically and slidably arranged on the inner side of the support frame 3, a first screw 602 is arranged between the two first sliding seats 601, the first screw 602 is transversely and threadedly mounted with the movable seat 5, and the first screw 602 is driven by a transverse motor 603; one end of the first screw 602 is provided with a first gear, the driving end of the transverse motor 603 is also provided with a first gear, and the two first gears are meshed with each other; a transverse sliding rod is arranged between the two first sliding seats 601 together, and the transverse sliding rod and the movable seat 5 are arranged in a transverse sliding mode;
the vertical adjusting mechanism 7 comprises two second sliding seats 701 which transversely slide on the inner side of the support frame 3, a second lead screw 702 is arranged between the two second sliding seats 701, the second lead screw 702 is vertically and threadedly arranged with the movable seat 5, and the second lead screw 702 is driven by a vertical motor 703; a second gear is mounted at one end of the second screw rod 702, a second gear is also mounted at the driving end of the vertical motor 703, and the two second gears are meshed with each other. A vertical sliding rod is installed between the two second sliding seats 701 together, and the vertical sliding rod and the movable seat 5 are installed in a vertical sliding mode.
The first slide 601 and the second slide 701 are both U-shaped.
The adjustable light source 10 comprises a first motor 1001, the first motor 1001 is installed on one side of the movable seat 5 far away from the placing table 2, the driving end of the first motor 1001 extends to one side of the movable seat 5 near the placing table 2 and is installed with a vertical rotating seat 1002, the vertical rotating seat 1002 is rotatably provided with a transverse rotating seat 1003, the transverse rotating seat 1003 is driven by a second motor 1004, and one side of the transverse rotating seat 1003 near the placing table 2 is provided with a light source 1005;
the angle of the light source 1005 can be adjusted in two directions through the vertical rotating seat 1002 and the horizontal rotating seat 1003, and the adjusting range is wider;
the vertical height of the light source 1005 can be adjusted by driving the second lead screw 702 to be in threaded fit with the movable seat 5 through the vertical motor 703, and the horizontal position can be adjusted by driving the first lead screw 602 to be in threaded fit with the movable seat 5 through the horizontal motor 603;
the distance between the light source 1005 and the placing table 2 and between the light source 1005 and the work is adjusted through the moving mechanism 8, specifically, the moving motor 803 drives the moving gear to be meshed with the rack of the rack rail 801 to realize driving, so that the supporting frame 3 and the light source 1005 integrally move.
Projection cloth mechanism 4 includes that the symmetry installs two chute framves 401 at bottom plate 1 top surface, and the lift groove has all been seted up at two chute framves 401's middle part, all installs spring slide bar 402 in the lift inslot, and the last slider 403 that all slides of spring slide bar 402 is equipped with, and spring slide bar 402 includes the vertical body of rod and winds the spring of establishing on the body of rod, slider 403 and body of rod slidable mounting, and is located the upper portion of the body of rod. A top rod 404 is commonly arranged between the two sliding blocks 403, the top rod 404 is positioned at the upper sides of the two sliding chute frames 401, bottom rods 406 are arranged at the lower sides of the two sliding chute frames 401, the lower sides of the top rods 404 are arranged with a cloth body 405, and the cloth body 405 is wound from the lower side of the bottom rods 406 to the rear side of the bottom rods 406, namely the side of the projection cloth mechanism 4 far away from the placing table 2;
the winding mechanism 9 comprises a winding roller 904 rotatably arranged on the upper side of the bottom plate 1, one end of the cloth body 405 far away from the projection cloth mechanism 4 is wound on the winding roller 904, and the winding roller 904 is driven by a winding motor 901. One end of the winding roller 904 is provided with a worm wheel 903, the driving end of the winding motor 901 is provided with a worm 902, and the worm 902 is meshed with the worm wheel 903.
The light source 1005 projects a work, the work is projected on the cloth 405, the height of the cloth 405 can be adjusted according to the projection height, specifically, the winding motor 901 drives the winding roller 904, the winding roller 904 is used for pulling the cloth 405 to move up and down, and when the cloth 405 moves up, the spring bounce of the spring slide rod 402 is used for moving up.
Claims (8)
1. The utility model provides a visual design projection arrangement, includes bottom plate (1), its characterized in that, the top surface middle part of bottom plate (1) is equipped with places platform (2), place platform (2) and pass through the rotary mechanism drive, the one side of placing platform (2) is equipped with support frame (3), support frame (3) are driven through moving mechanism (8), the opposite side of placing platform (2) is equipped with projection cloth mechanism (4) relative with support frame (3), projection cloth mechanism (4) and winding mechanism (9) mutually support, support frame (3) are equipped with mobilizable sliding seat (5) through horizontal adjustment mechanism (6) and vertical adjustment mechanism (7), one side that sliding seat (5) are close to and place platform (2) is equipped with adjustable light source (10).
2. A visual design projection device according to claim 1, wherein the rotating mechanism comprises a rotating motor (201) installed on the top surface of the bottom plate (1), the placing table (2) is rotatably installed on the top surface of the bottom plate (1), a gear ring (203) is installed on the outer side of the placing table (2), a driving gear (202) is installed at the driving end of the rotating motor (201), and the driving gear (202) is meshed with the gear ring (203);
the moving mechanism (8) comprises a rack rail (801) and a sliding rail (802) which are fixed on the top surface of the bottom plate (1), the bottom of the support frame (3) is in sliding fit with the rack rail (801) and the sliding rail (802) respectively, a moving motor (803) is installed at the bottom of the support frame (3), a moving gear is installed at the driving end of the moving motor (803), and the moving gear is meshed with the rack rail (801);
the transverse adjusting mechanism (6) comprises two first sliding seats (601) which are vertically and slidably arranged on the inner side of the supporting frame (3), a first screw rod (602) is installed between the two first sliding seats (601), the first screw rod (602) is transversely installed with the movable seat (5) in a threaded manner, and the first screw rod (602) is driven by a transverse motor (603);
the vertical adjusting mechanism (7) comprises two second sliding seats (701) which transversely slide on the inner side of the supporting frame (3), a second screw rod (702) is installed between the two second sliding seats (701), the second screw rod (702) is vertically and threadedly installed with the movable seat (5), and the second screw rod (702) is driven by a vertical motor (703);
the adjustable light source (10) comprises a first motor (1001), the first motor (1001) is installed on one side, away from the placing table (2), of the movable seat (5), the driving end of the first motor (1001) extends to one side, close to the placing table (2), of the movable seat (5) and is installed with a vertical rotating seat (1002), a transverse rotating seat (1003) is installed on the vertical rotating seat (1002) in a rotating mode, the transverse rotating seat (1003) is driven by a second motor (1004), and a light source (1005) is installed on one side, close to the placing table (2), of the transverse rotating seat (1003);
the projection cloth mechanism (4) comprises two sliding groove frames (401) symmetrically arranged on the top surface of the bottom plate (1), lifting grooves are formed in the middles of the two sliding groove frames (401), spring sliding rods (402) are arranged in the lifting grooves, sliding blocks (403) are arranged on the spring sliding rods (402) in a sliding mode, a top rod (404) is arranged between the two sliding blocks (403) together, the top rod (404) is located on the upper sides of the two sliding groove frames (401), bottom rods (406) are arranged on the lower sides of the two sliding groove frames (401), the lower sides of the top rods (404) are mounted with a cloth body (405), the cloth body (405) is wound to the rear side of the bottom rods (406) from the lower side of the bottom rods (406), and namely the projection cloth mechanism (4) is far away from one side of the placing table (2);
winding mechanism (9) are including rotating wind-up roll (904) that sets up in bottom plate (1) upside, the one end that projection cloth mechanism (4) were kept away from in cloth body (405) is around establishing on wind-up roll (904), wind-up roll (904) are through rolling motor (901) drive.
3. A visual design projection device according to claim 2, wherein the spring slide (402) comprises a vertical rod and a spring wound around the rod, and the slider (403) is slidably mounted with the rod and located at the upper part of the rod.
4. A visual design projection device according to claim 2, wherein one end of the first screw (602) is provided with a first gear, the driving end of the transverse motor (603) is also provided with a first gear, and the two first gears are meshed with each other;
a second gear is installed at one end of the second screw rod (702), a second gear is also installed at the driving end of the vertical motor (703), and the two second gears are meshed with each other.
5. A visual design projection device according to claim 2 or 4, wherein a transverse sliding rod is mounted between the two first sliding seats (601) and is mounted with the movable seat (5) in a transverse sliding manner;
two install vertical slide bar jointly between second slide (701), vertical slide bar and sliding block (5) vertical slidable mounting.
6. A visual design projection device according to claim 2, wherein a worm wheel (903) is mounted at one end of the wind-up roller (904), a worm (902) is mounted at the driving end of the wind-up motor (901), and the worm (902) is meshed with the worm wheel (903).
7. A visual design projection device according to claim 2, wherein the rack rail (801) comprises a rail plate fixed on the top surface of the base plate (1), a rack is fixed on the middle of one side of the rail plate far away from the sliding rail (802), and the rack is meshed with a moving gear installed at the driving end of the moving motor (803).
8. A visual design projection device according to claim 4, wherein the first slide (601) and the second slide (701) are both of U-shaped configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570888.9A CN114236960B (en) | 2021-12-21 | 2021-12-21 | Visual design projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570888.9A CN114236960B (en) | 2021-12-21 | 2021-12-21 | Visual design projection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114236960A true CN114236960A (en) | 2022-03-25 |
| CN114236960B CN114236960B (en) | 2023-05-23 |
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ID=80760229
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111570888.9A Active CN114236960B (en) | 2021-12-21 | 2021-12-21 | Visual design projection device |
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| Country | Link |
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| CN (1) | CN114236960B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673753U (en) * | 1993-03-25 | 1994-10-18 | 日本ビクター株式会社 | Projection screen device |
| CN108180354A (en) * | 2017-12-26 | 2018-06-19 | 西安科技大学 | A kind of stop-motion animation video camera rack |
| CN110716383A (en) * | 2019-09-30 | 2020-01-21 | 深圳市火乐科技发展有限公司 | Integrated projector |
| CN211044547U (en) * | 2019-04-19 | 2020-07-17 | 华东交通大学理工学院 | Statistics theory propaganda teaching device |
| CN212379713U (en) * | 2020-05-18 | 2021-01-19 | 青岛海信激光显示股份有限公司 | Projection screen or display screen |
| CN212755074U (en) * | 2020-06-18 | 2021-03-23 | 广东财经大学华商学院 | Novel visual transmission design platform |
| CN214119752U (en) * | 2020-09-29 | 2021-09-03 | 北京柏莱特文化创意股份有限公司 | Stage lighting device convenient to rotate |
| CN215068676U (en) * | 2021-06-28 | 2021-12-07 | 江西交通职业技术学院 | View projection arrangement is used in mechanical drawing teaching |
-
2021
- 2021-12-21 CN CN202111570888.9A patent/CN114236960B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673753U (en) * | 1993-03-25 | 1994-10-18 | 日本ビクター株式会社 | Projection screen device |
| CN108180354A (en) * | 2017-12-26 | 2018-06-19 | 西安科技大学 | A kind of stop-motion animation video camera rack |
| CN211044547U (en) * | 2019-04-19 | 2020-07-17 | 华东交通大学理工学院 | Statistics theory propaganda teaching device |
| CN110716383A (en) * | 2019-09-30 | 2020-01-21 | 深圳市火乐科技发展有限公司 | Integrated projector |
| CN212379713U (en) * | 2020-05-18 | 2021-01-19 | 青岛海信激光显示股份有限公司 | Projection screen or display screen |
| CN212755074U (en) * | 2020-06-18 | 2021-03-23 | 广东财经大学华商学院 | Novel visual transmission design platform |
| CN214119752U (en) * | 2020-09-29 | 2021-09-03 | 北京柏莱特文化创意股份有限公司 | Stage lighting device convenient to rotate |
| CN215068676U (en) * | 2021-06-28 | 2021-12-07 | 江西交通职业技术学院 | View projection arrangement is used in mechanical drawing teaching |
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| Publication number | Publication date |
|---|---|
| CN114236960B (en) | 2023-05-23 |
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