CN212229405U - Adjusting device for projection screen area - Google Patents
Adjusting device for projection screen area Download PDFInfo
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- CN212229405U CN212229405U CN201922427165.8U CN201922427165U CN212229405U CN 212229405 U CN212229405 U CN 212229405U CN 201922427165 U CN201922427165 U CN 201922427165U CN 212229405 U CN212229405 U CN 212229405U
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Abstract
The utility model discloses a regional adjusting device of projection screen belongs to instrument erection equipment technical field. Comprises the following steps: the device comprises a mounting plate, a connecting rod, a first frame with an opening at the left end, an L-shaped plate, a projector, an electric push rod, a first motor and a zooming component; the upper end of the connecting rod is pivoted with the bottom wall of the mounting plate, the lower end of the connecting rod is fixed with the top wall of the first frame, the L-shaped plate is fixed on the bottom wall of the first frame, the electric push rod and the first motor are both positioned on the L-shaped plate, and the first motor is fixed on a telescopic shaft of the electric push rod; the zooming component comprises a magnifying lens, a reducing lens, a first mounting rack and a second mounting rack; the magnifying lens and the reducing lens are respectively embedded on the first mounting frame and the second mounting frame, the first mounting frame and the second mounting frame are vertically connected, and the joint of the first mounting frame and the second mounting frame is fixedly connected with the power output end of the first motor. The utility model discloses can overturn and use, make things convenient for the projected enlargeing or reducing, adjustable rotation angle, change are simple.
Description
Technical Field
The utility model relates to an instrument erection equipment technical field especially relates to a regional adjusting device of projection screen.
Background
With the progress of multimedia technology, multimedia devices, such as projectors, are increasingly used in modern classroom teaching, the projection is a device that projects or reflects images or videos onto a screen through an optical technology, the projector is also called a projector, and the digital light processing technology or the LCD liquid crystal imaging technology, and can be accessed to corresponding images and video signals through different signal sources, such as computers, mobile phones, DVDs, DVs, to realize playing.
In addition, the existing adjusting device is only installed on a roof, is difficult to adapt to ground support, cannot be overturned for use, and is difficult to adapt to various conditions.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a regional adjusting device of projection screen, can overturn for use, make things convenient for the projected enlargements or reduce, adjustable rotation angle, change are simple.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a regional adjusting device of projection screen, including: the device comprises a mounting plate, a connecting rod, a first frame with an opening at the left end, an L-shaped plate, a projector, an electric push rod, a first motor and a zooming component, wherein the mounting plate is used for fixed mounting;
the upper end of the connecting rod is pivoted with the bottom wall of the mounting plate, the lower end of the connecting rod is fixed with the top wall of the first frame, the projector is positioned in the first frame, the L-shaped plate is fixed on the bottom wall of the first frame, the electric push rod and the first motor are both positioned on the L-shaped plate, and the first motor is fixed on a telescopic shaft of the electric push rod;
the zooming component comprises a magnifying lens, a reducing lens, a first mounting rack and a second mounting rack; the magnifying lens and the reducing lens are respectively embedded on the first mounting frame and the second mounting frame, the first mounting frame and the second mounting frame are vertically connected, and the joint of the first mounting frame and the second mounting frame is fixedly connected with the power output end of the first motor.
Furthermore, the device also comprises a second motor, a first gear and a second gear; the second motor is fixed on the bottom wall of the mounting plate and is positioned on the right side of the connecting rod; the first gear is sleeved on the connecting rod, the second gear is sleeved on the power output end of the second motor, and the first gear is meshed with the second gear.
Furthermore, a limiting block is fixed on the inner bottom wall of the first frame and is positioned at the opening of the first frame.
Further, a roller is fixed at the bottom of the first motor.
Furthermore, the bottom of the first frame is provided with a heat dissipation hole.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model can be used in a turnover way, is provided with a zooming component, and can adjust the zooming range of the projection equipment; through the cooperation of first motor and electric putter, the power take off of first motor drives the rotatory adjustment magnifying glass piece of first mounting bracket, second mounting bracket or reduces the lens and aim at the output port of projecting apparatus to realize the effect of enlargeing or reducing, thereby the flexible end back-and-forth movement of electric putter drives magnifying glass piece or reduces lens and projecting apparatus distance and changes the scope of enlargeing or reducing, and adjustable rotation angle.
Drawings
Fig. 1 is a schematic structural diagram of an adjusting device for a projection screen area according to an embodiment of the present invention;
fig. 2 is a schematic side view of the first and second mounting frames according to an embodiment of the present invention.
In the figure:
1. mounting a plate; 2. a connecting rod; 3. a first frame; 4. an L-shaped plate; 5. a projector; 6. an electric push rod; 7. a first motor; 8. a zoom component; 81. a magnifying lens; 82. reducing the size of the lens; 83. a first mounting bracket; 84. a second mounting bracket; 9. a second motor; 10. a first gear; 11. a second gear; 12. a limiting block; 13. and a roller.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1 and fig. 2, the utility model provides a projection screen area adjusting device, including: the device comprises a mounting plate 1, a connecting rod 2, a first frame 3 with an opening at the left end, an L-shaped plate 4, a projector 5, an electric push rod 6, a first motor 7 and a zooming component 8, wherein the mounting plate 1, the connecting rod 2, the first frame, the projector 5, the electric push rod 6, the first motor 7 and the zooming component 8 are fixedly mounted; the upper end of the connecting rod 2 is pivoted with the bottom wall of the mounting plate 1, the lower end of the connecting rod 2 is fixed with the top wall of the first frame 3, the projector 5 is positioned in the first frame 3, the L-shaped plate 4 is fixed on the bottom wall of the first frame 3, the electric push rod 6 and the first motor 7 are both positioned on the L-shaped plate 4, and the first motor 7 is fixed on a telescopic shaft of the electric push rod 6; the zooming assembly 8 comprises a magnifying lens 81, a reducing lens 82, a first mounting rack 83 and a second mounting rack 84; the magnifying lens 81 and the reducing lens 82 are respectively embedded on the first mounting frame 83 and the second mounting frame 84, the first mounting frame 83 and the second mounting frame 84 are vertically connected, and the connection position of the first mounting frame 83 and the second mounting frame 84 is fixedly connected with the power output end of the first motor 7.
The device also comprises a second motor 9, a first gear 10 and a second gear 11; the second motor 9 is fixed on the bottom wall of the mounting plate 1, and the second motor 9 is positioned on the right side of the connecting rod 2; the first gear 10 is sleeved on the connecting rod 2, the second gear 11 is sleeved on the power output end of the second motor 9, and the first gear 10 and the second gear 11 are meshed with each other. The power output end of the second motor 9 is provided with a second gear 11 in a sleeved mode, and the second gear 11 on the power output end of the second motor 9 drives the first frame 3 connected with the connecting rod 2 on the first gear 10 to rotate.
A stopper 12 is fixed to an inner bottom wall of the first frame 3, and the stopper 12 is located at an opening of the first frame 3. The limiting block 12 is arranged to prevent the projector 5 from sliding out when the first frame 3 moves.
A roller 13 is fixed at the bottom of the first motor 7. The roller 13 is used for supporting the first motor 7 and reducing the gravity load of the telescopic shaft of the electric push rod 6.
The bottom of the first frame 3 is provided with heat dissipation holes. The heat dissipation holes are provided for dissipating heat from the first frame 3.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (5)
1. An apparatus for adjusting a projection screen area, comprising: the device comprises a mounting plate, a connecting rod, a first frame with an opening at the left end, an L-shaped plate, a projector, an electric push rod, a first motor and a zooming component, wherein the mounting plate is used for fixed mounting;
the upper end of the connecting rod is pivoted with the bottom wall of the mounting plate, the lower end of the connecting rod is fixed with the top wall of the first frame, the projector is positioned in the first frame, the L-shaped plate is fixed on the bottom wall of the first frame, the electric push rod and the first motor are both positioned on the L-shaped plate, and the first motor is fixed on a telescopic shaft of the electric push rod;
the zooming component comprises a magnifying lens, a reducing lens, a first mounting rack and a second mounting rack; the magnifying lens and the reducing lens are respectively embedded on the first mounting frame and the second mounting frame, the first mounting frame and the second mounting frame are vertically connected, and the joint of the first mounting frame and the second mounting frame is fixedly connected with the power output end of the first motor.
2. The apparatus for adjusting the area of a projection screen of claim 1, wherein:
the device also comprises a second motor, a first gear and a second gear; the second motor is fixed on the bottom wall of the mounting plate and is positioned on the right side of the connecting rod; the first gear is sleeved on the connecting rod, the second gear is sleeved on the power output end of the second motor, and the first gear is meshed with the second gear.
3. The apparatus for adjusting the area of a projection screen of claim 1, wherein:
a limiting block is fixed on the inner bottom wall of the first frame and located at the opening of the first frame.
4. The apparatus for adjusting the area of a projection screen of claim 1, wherein:
and a roller is fixed at the bottom of the first motor.
5. The apparatus for adjusting the area of a projection screen of claim 1, wherein:
the bottom of the first frame is provided with a heat dissipation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922427165.8U CN212229405U (en) | 2019-12-28 | 2019-12-28 | Adjusting device for projection screen area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922427165.8U CN212229405U (en) | 2019-12-28 | 2019-12-28 | Adjusting device for projection screen area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212229405U true CN212229405U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922427165.8U Active CN212229405U (en) | 2019-12-28 | 2019-12-28 | Adjusting device for projection screen area |
Country Status (1)
| Country | Link |
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| CN (1) | CN212229405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112971360A (en) * | 2021-02-05 | 2021-06-18 | 湖南科技学院 | Product art design photocopying table with zooming function |
| CN113376948A (en) * | 2021-06-10 | 2021-09-10 | 江苏环球之星影视设备科技有限公司 | Dual-purpose multimedia dome of dome curtain |
-
2019
- 2019-12-28 CN CN201922427165.8U patent/CN212229405U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112971360A (en) * | 2021-02-05 | 2021-06-18 | 湖南科技学院 | Product art design photocopying table with zooming function |
| CN113376948A (en) * | 2021-06-10 | 2021-09-10 | 江苏环球之星影视设备科技有限公司 | Dual-purpose multimedia dome of dome curtain |
| CN113376948B (en) * | 2021-06-10 | 2023-10-13 | 江苏环球之星影视设备科技有限公司 | Dual-purpose multi-media ball curtain of ball curtain dome |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230920 Address after: Room 901, Building 1, No. 13 Yanchuan Road, Licang District, Qingdao City, Shandong Province, 266041 Patentee after: Qingdao Qingzhichuang Intelligent Technology Co.,Ltd. Address before: 518109 16a, building 7, Baoneng Science Park, Qinghu village, Qinghu community, Longhua street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Chuangxian cloud Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |