CN101900928B - Lifting screen - Google Patents
Lifting screen Download PDFInfo
- Publication number
- CN101900928B CN101900928B CN 201010225779 CN201010225779A CN101900928B CN 101900928 B CN101900928 B CN 101900928B CN 201010225779 CN201010225779 CN 201010225779 CN 201010225779 A CN201010225779 A CN 201010225779A CN 101900928 B CN101900928 B CN 101900928B
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- stainless steel
- gear shaft
- winding drum
- reel
- steel reel
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- Overhead Projectors And Projection Screens (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention relates to a lifting screen, comprising a supporting frame; wherein the supporting frame is internally provided with a stainless steel winding drum assembly, the stainless steel winding drum assembly comprises a stainless steel winding drum, the stainless steel winding drum is internally provided with a concentric first gear shaft and an eccentric second gear shaft, the first gear shaft and the second gear shaft are meshed, and the second gear shaft is sheathed with a steel wire rope winding drum and is arranged in the stainless steel winding drum by virtue of a supporting member; the first gear shaft is connected with a reducer motor; the steel wire rope of the stainless steel winding drum is suspended with a screen curtain, the screen curtain is provided with an upper rod and a lower rod; the rotating shaft of the stainless steel winding drum is provided with an electromagnetic brake, the electromagnetic brake and the reducer motor are all connected with an electrical control system arranged in an electrical box; and the lower side edge axial length of the stainless steel winding drum is opened with a notch for containing the upper rod of the screen curtain. The invention has the beneficial effects that structure is compact, occupying space is small, performance is stable, action is reliable, noise is less, and cost is low.
Description
Technical field
The present invention relates to a kind of lifting screen.
Background technology
The relative spectators' of projection screen sight line has a suitable relatively suspension height, generally is located in the scope of liftoff 0.8-2.5 rice, and the collection case of curtain is just above 2.5 meters.Modern public building comprises that common residential houses has proposed new requirement to increasingly high, the bigger spatial altitude that requires of spatial altitude to suspension, collection and the space hold of projection screen.
Usually the way that solves has two kinds, and first kind is that the collection case still is located at 2.5 meters tops, and shortcoming is that the collection case mediates, influence interior decoration and attractive in appearance, take up room; Second kind is to move to the buildings ceiling on the collection case, increases the curtain height, and shortcoming is that the collection casing amasss and the curtain distortion increases, and rectangular curtain has a strong impact on attractive in appearance simultaneously.
Summary of the invention
The present invention will solve long-pending the distortion with curtain of the collection casing that has projection screen now and increase the big and inaesthetic problem that takes up room, and a kind of satisfied the projection screen suspension of building height increase back, the little lifting screen of collecting and take up room are provided.
Lifting screen is characterized in that: comprise bearing support, said bearing support is installed between ceiling and the side wall; The stainless-steel roll cartridge module is installed in the said bearing support; Said stainless-steel roll cartridge module comprises the stainless steel reel, and second gear shaft of first gear shaft concentric with it, off-centre is installed in the said stainless steel reel, said first gear shaft and the engagement of second gear shaft; Be with cable drum on said second gear shaft, be installed in the stainless steel reel through supporting member; Said first gear shaft is connected with reducing motor; Be hung with the screen curtain on the wire rope of said cable drum, on the said screen curtain lower beam be installed; On the rotation axis of said stainless steel reel electromagnetic brake is installed, said electromagnetic brake, reducing motor all be located at electric box in electric control system be connected; The downside of said stainless steel reel has the notch of collection screen curtain upper boom along the axial length.
Further, in the said stainless steel reel a plurality of cable drums are installed, the spool of adjacent wires rope reel connects through transmission shaft and is connected on second gear shaft, is provided with stiffener between the adjacent supporting member.
Further, the damper weight that guarantees the cable drum smooth rotation is installed in the said stainless steel reel.
Further, the upper boom two ends of said screen curtain are provided with the wire rope set screw.
Further, said first gear shaft is connected through shaft coupling with reducing motor.
Relative first gear shaft of stainless steel reel of the present invention can independently rotate, and the relative stainless steel reel with second gear shaft of cable drum also can independently rotate, and this is the relatively independent whirligigs of two covers.Wire rope can be according to many of the width configuration of curtain, and length of steel wire rope is confirmed according to traveled distance height (removing the curtain height).
Receive a curtain principle: electromagnetic brake gets electric braking, stainless steel reel notch vertically downward and fixed, driven by motor first gear shaft rotates; Drive second gear shaft and rotate, receive wire rope thereby drive cable drum, when upper boom gets into notch; The electromagnetic brake dead electricity declutches, and whole stainless-steel roll cartridge module rotates with first gear shaft, and the screen curtain is wound on the stainless steel reel; Put spacing when lower beam rises to height; Motor braking, curtain is accomplished collection, and this moment, lower beam was positioned near the stainless steel reel side center line.
Fall an act principle: the electromagnetic brake dead electricity declutches, motor counter-rotating, whole stainless steel assembly rotation; The screen curtain leans on the gravitational torque of lower beam at the uniform velocity to descend, and when exposing upper boom and notch vertically downward the time, electromagnetic brake gets electric braking stainless steel reel; The stainless steel reel is motionless, and driven by motor first gear shaft rotates, and drives second gear shaft and rotates; Discharge wire rope thereby drive cable drum, the screen curtain just drops to preassigned position automatically, and motor stops.
Beneficial effect of the present invention:
1) screen that is fit to any head room goes up and down and collection, compact conformation, take up room little, background is attractive in appearance (wirerope diameter is less than 1mm, and naked eyes almost cannot see), rising or falling speed is fast;
2) stable performance, reliable in action, noise is little, cost is low;
3) suspension wire rope end be built in the upper boom and degree of tightness adjustable, good manufacturability;
4) the screen curtain hangs down and feels, the no any damage of big stroke collection, and drop shadow effect is good.
Description of drawings
Fig. 1 is the front view of general structure of the present invention.
Fig. 2 is the screen rising collection of general structure of the present invention and falls two kinds of situation combination of side view behind the scenes.
Fig. 3 is the structural drawing of stainless-steel roll cartridge module of the present invention.
Fig. 4 be the present invention along A-A among Fig. 3 to cut-open view.
Fig. 5 be the present invention along B-B among Fig. 3 to cut-open view.
Fig. 6 be the present invention along C-C among Fig. 3 to cut-open view.
Embodiment
With reference to Fig. 1-6; Lifting screen comprises bearing support 3, and said bearing support 3 is installed between ceiling 16 and the side wall 15; In the said bearing support 3 stainless-steel roll cartridge module 2 is installed; Said stainless-steel roll cartridge module 2 comprises stainless steel reel 21, and concentric with it first gear shaft 6, eccentric second gear shaft 19 are installed in the said stainless steel reel 21, and said first gear shaft 6 meshes with second gear shaft 19; Be with cable drum 4 on said second gear shaft 19, be installed in the stainless steel reel 21 through supporting member 18; Said first gear shaft 6 is connected with reducing motor 7; 13 are hung with screen curtain 11 on the wire rope of said cable drum 4, and upper boom 10, lower beam 12 are installed on the said screen curtain 11; Electromagnetic brake 1 is installed on the rotation axis of said stainless steel reel 21, and said electromagnetic brake 1, reducing motor 7 all are connected with the electric control system that is located at 8 li of electric boxs; The downside of said stainless steel reel 21 has the notch 22 of collection screen curtain upper boom 10 along the axial length.
A plurality of cable drums 4 are installed in the said stainless steel reel 21, and the spool of adjacent wires rope reel 4 connects through transmission shaft 5 and is connected on second gear shaft 19, is provided with stiffener 17 between the adjacent supporting member 18.
The damper weight 20 that guarantees cable drum 4 smooth rotation is installed in the said stainless steel reel 21.
Said first gear shaft 6 is connected through shaft coupling 9 with reducing motor 7.
Receive a curtain principle: electromagnetic brake 1 electric braking, stainless steel reel 21 notches 22 vertically downward and fixed, motor 7 drives first gear shaft 6 and rotates; Drive second gear shaft 19 and rotate, receive wire rope 13 thereby drive cable drum 4, when upper boom 10 gets into notch 22; Electromagnetic brake 1 dead electricity declutches, and whole stainless-steel roll cartridge module 2 is wound on screen curtain 11 on the stainless steel reel 21 with 6 rotations of first gear shaft; Spacing when lower beam 12 rising lofty perches, motor 7 is braked, and curtain 11 is accomplished collection; This moment, lower beam 12 was positioned near the stainless steel reel 21 side center lines, saw Fig. 2.
Fall an act principle: electromagnetic brake 1 dead electricity declutches, motor 7 counter-rotatings, whole stainless steel assembly 2 rotations; Screen curtain 11 leans on the gravitational torque of lower beam 12 at the uniform velocity to descend, when exposing upper boom 10 and notch 22 vertically downward the time, electromagnetic brake 1 electric braking stainless steel reel 21; Stainless steel reel 21 is motionless, and motor 7 drives first gear shaft 6 and rotates, and drives second gear shaft 19 and rotates; Discharge wire rope 13 thereby drive cable drum 4, screen curtain 11 just drops to preassigned position automatically, and motor 7 stops.
The described content of this instructions embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (4)
1. lifting screen, it is characterized in that: comprise bearing support, said bearing support is installed between ceiling and the side wall; The stainless-steel roll cartridge module is installed in the said bearing support; Said stainless-steel roll cartridge module comprises the stainless steel reel, and second gear shaft of first gear shaft concentric with it, off-centre is installed in the said stainless steel reel, said first gear shaft and the engagement of second gear shaft; Be with cable drum on said second gear shaft, be installed in the stainless steel reel through supporting member; In the said stainless steel reel a plurality of cable drums are installed, the spool of adjacent wires rope reel connects through transmission shaft and is connected on second gear shaft, is provided with stiffener between the adjacent supporting member; Said first gear shaft is connected with reducing motor; Be hung with the screen curtain on the wire rope of said cable drum, on the said screen curtain lower beam be installed; On the rotation axis of said stainless steel reel electromagnetic brake is installed, said electromagnetic brake, reducing motor all be located at electric box in electric control system be connected; The downside of said stainless steel reel has the notch of collection screen curtain upper boom along the axial length.
2. lifting screen according to claim 1 is characterized in that: the damper weight that guarantees the cable drum smooth rotation is installed in the said stainless steel reel.
3. lifting screen according to claim 1 and 2 is characterized in that: the upper boom two ends of said screen curtain are provided with the wire rope set screw.
4. lifting screen according to claim 3 is characterized in that: said first gear shaft is connected through shaft coupling with reducing motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010225779 CN101900928B (en) | 2010-07-14 | 2010-07-14 | Lifting screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010225779 CN101900928B (en) | 2010-07-14 | 2010-07-14 | Lifting screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101900928A CN101900928A (en) | 2010-12-01 |
| CN101900928B true CN101900928B (en) | 2012-05-23 |
Family
ID=43226575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010225779 Active CN101900928B (en) | 2010-07-14 | 2010-07-14 | Lifting screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101900928B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353705B (en) * | 2013-05-29 | 2016-03-16 | 芜湖市安曼特微显示科技有限公司 | A kind of Automatic installation device for projector |
| CN103399454B (en) * | 2013-08-05 | 2015-11-25 | 深圳市安联商用机器有限公司 | A kind of screen and underwind mechanism and control method thereof |
| CN104360575B (en) * | 2014-11-17 | 2016-01-20 | 成都西华升腾科技有限公司 | A kind of equipment cutting off electric machine rotation |
| CN105589290B (en) * | 2014-12-17 | 2017-04-12 | 广州美视晶莹银幕有限公司 | Concealed projection screen |
| CN106438851A (en) * | 2016-11-30 | 2017-02-22 | 盐城工学院 | Transmission device easy to assemble and disassemble for electric curtain |
| CN112925161B (en) * | 2019-12-05 | 2022-11-22 | 青岛海信激光显示股份有限公司 | Laser projection device |
| CN112925160B (en) * | 2019-12-05 | 2023-01-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19924630A1 (en) * | 1999-05-29 | 2000-11-30 | Sung Hur | Drive device with elliptical movement for stepped conveyor screens has upper elliptical drive part driving upper part of displaceable plate elliptically with adjustable height between step of displaceable plate and that of fixed plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60188591A (en) * | 1984-03-08 | 1985-09-26 | 九州アロマ工業株式会社 | Roll screen |
| JP2845133B2 (en) * | 1994-06-28 | 1999-01-13 | 株式会社オーエス | Projection screen equipment |
-
2010
- 2010-07-14 CN CN 201010225779 patent/CN101900928B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19924630A1 (en) * | 1999-05-29 | 2000-11-30 | Sung Hur | Drive device with elliptical movement for stepped conveyor screens has upper elliptical drive part driving upper part of displaceable plate elliptically with adjustable height between step of displaceable plate and that of fixed plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101900928A (en) | 2010-12-01 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yuyao City, Zhejiang province 315400 city of Ningbo new North Yangming science and Technology Industrial Park No. 737 Patentee after: ZHEJIANG DAFENG INDUSTRY COMPANY LTD. Address before: Yuyao City, Zhejiang province 315400 city of Ningbo new North Yangming science and Technology Industrial Park No. 737 Patentee before: Zhejiang Dafeng Industrial Co., Ltd. |