CN105974724A - Projection arc curtain tensioning device - Google Patents
Projection arc curtain tensioning device Download PDFInfo
- Publication number
- CN105974724A CN105974724A CN201610513525.4A CN201610513525A CN105974724A CN 105974724 A CN105974724 A CN 105974724A CN 201610513525 A CN201610513525 A CN 201610513525A CN 105974724 A CN105974724 A CN 105974724A
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- CN
- China
- Prior art keywords
- take
- adjustment seat
- spacing
- hole
- projection
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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
Abstract
The invention discloses a projection arc curtain tensioning device, comprising a projection curtain between a curtain scroll and a balancing pull rod, wherein an end sleeve is separately sleeved at two side ends of the balancing pull rod, a groove is formed in the outer wall of each end sleeve, a through hole is formed in the center of the bottom of each groove, a stay hole is formed at the top of each end sleeve, a take-up adjusting seat is inserted into the groove of each end sleeve, a bobbin which can be inserted into the corresponding end sleeve from the through hole is arranged on each take-up adjusting seat, and each take-up adjusting seat is limited and fixed with the corresponding end sleeve via a limiting and fixing mechanism; a plurality of pull rings are arranged on two sides of the projection curtain, a stay is separately arranged on two sides of the projection curtain, the upper end of each stay is connected with the curtain scroll, and the lower end of each stay penetrates through the pull rings on the same side and then is connected with the corresponding bobbin; and when the two bobbins simultaneously rotate to tighten the corresponding stays, the two stays can transversely and oppositely pull the projection curtain to tighten and level off the projection curtain. The device has the advantage of high spread flatness of the projection curtain.
Description
Technical field
The present invention relates to curtain technical field, be particularly used for the projection arc curtain entirety after launching and tighten the projection arc curtain tensioner evened up.
Background technology
The structure of the projection arc curtain used at present is: include projection screen receiver, in projection screen receiver, expansion bearing has rotating curtain spool, the upper end of projection screen is connected with curtain spool, and the lower end activity of projection screen is fixed with counterweight pull bar after stretching out projection screen receiver.When projection arc curtain launches to use, counterweight pull bar can strain projection screen in vertical direction under Gravitative Loads, but counterweight pull bar can only apply the pulling force of vertical direction to projection screen, and projection screen cannot be applied laterally to the pull strength drawn, cause the projection arc curtain used at present to there is shortcomings such as launching poor flatness.
Summary of the invention
It is an object of the invention to provide a kind of projection screen that can improve and launch the projection arc curtain tensioner of flatness.
For achieving the above object, present invention employs following technical scheme: described projection arc curtain tensioner, including the projection screen between curtain spool and counterweight pull bar, both side ends at counterweight pull bar is arranged with an end set respectively, the lateral wall that each end overlaps is respectively provided with fluted, it is respectively arranged with the through hole within connection corresponding end set in the bottom land center of each groove, the bracing wire hole that be connected internal with corresponding end set it is respectively arranged with at the top that each end overlaps, take-up adjustment seat it is inserted with respectively in the groove that each end overlaps, each take-up adjustment seat is respectively arranged with and can insert the spool within corresponding end set from corresponding through hole, each take-up adjustment seat is mutually spacing with corresponding end set fixing by limiting fixing mechanism respectively；The both sides side of projection screen is the most from up to down arranged at intervals with some draw rings, it is also respectively provided with bracing wire in the both sides of projection screen, the upper end of every bracing wire is connected with curtain spool, the lower end of every bracing wire sequentially pass through all draw rings of homonymy after to stretch into corresponding end set internal and be connected with the spool within corresponding end set bracing wire hole through putting with side；When two spools rotate under the drive of corresponding take-up adjustment seat and tighten up corresponding bracing wire simultaneously, two bracing wires can be laterally to drawing projection screen to be tightened by projection screen and even up.
Further, aforesaid projection arc curtain tensioner, wherein: the structure of described limiting fixing mechanism is: on the inner peripheral wall of end set upper groove, be provided with a circle ratchet slot, take-up adjustment seat is provided with socket, in socket, activity is inserted with spacing plug, spacing plug is provided with spacing ratchet, it is provided with spring between spacing plug and take-up adjustment seat, spacing plug has to move radially outward to its spacing ratchet to be inserted in ratchet slot under the outside elastic force effect of spring all the time makes take-up adjustment seat overlap, with end, the trend fixed, and when pressing inward against spacing plug, when making spacing plug overcome displaced radially inward to the spacing ratchet of outside elastic force of spring to leave ratchet slot, spacing plug will not interfere with take-up adjustment seat and rotates.
Further, aforesaid projection arc curtain tensioner, wherein: in take-up adjustment seat, be provided with radially-directed hole, spacing plug is provided with the guide post that can insert radially-directed hole, spacing plug inserts make in radially-directed hole spacing plug relatively take-up adjustment seat can only move radially and can not move axially by being directed to bar activity, and spring housing is located on the guide post between spacing plug and take-up adjustment seat.
Further, aforesaid projection arc curtain tensioner, wherein: be provided with bracing wire installing hole being positioned on the spool within end set.
By the enforcement of technique scheme, the invention has the beneficial effects as follows: simple in construction, convenient to install and maintain, projection screen can not only be applied the pulling force of vertical direction, and projection screen can be applied laterally the pull strength drawn, so that the projection screen after Zhan Kaiing can be tightened by entirety and even up, substantially increase the expansion flatness of projection screen.
Accompanying drawing explanation
Fig. 1 is the structural representation of projection arc curtain tensioner of the present invention.
Fig. 2 is the structural representation in the left view direction of Fig. 1.
Fig. 3 is the structural representation of the B-B section shown in Fig. 2.
Fig. 4 is the structural representation of the A-A section shown in Fig. 1.
Fig. 5 is the enlarged diagram at the H position shown in Fig. 4.
Fig. 6 is the perspective view of the take-up adjustment seat shown in Fig. 1.
Fig. 7 is the perspective view of the spacing plug shown in Fig. 1.
Fig. 8 is the perspective view of the end set shown in Fig. 1.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, described projection arc curtain tensioner, including the projection screen 3 between curtain spool 1 and counterweight pull bar 2, both side ends at counterweight pull bar 2 is arranged with an end set 4 respectively, overlap at each end and on 4 lateral walls, be respectively provided with fluted 5, it is respectively arranged with the through hole 6 within connection corresponding end set 4 in the bottom land center of each groove 5, it is respectively arranged with and the bracing wire hole 7 being connected inside corresponding end set 4 at the top of each end set 4, take-up adjustment seat 8 it is inserted with respectively in the groove 5 of each end set 4, each take-up adjustment seat 8 is respectively arranged with and can insert the spool 9 within corresponding end set 4 from corresponding through hole 6, it is mutually spacing fixing that each take-up adjustment seat 8 overlaps 4 by limiting fixing mechanism and corresponding end respectively；The both sides side of projection screen 3 is the most from up to down arranged at intervals with some draw rings 10, it is also respectively provided with bracing wire 11 in the both sides of projection screen 3, the upper end of every bracing wire 11 is connected with curtain spool 1, and the lower end of every bracing wire 11 is internal and be connected with the spools 9 within corresponding end set 4 through stretching into corresponding end set 4 with the bracing wire hole 7 on side set 4 after sequentially passing through all draw rings 10 of homonymy；When two spools 9 rotate under the drive of corresponding take-up adjustment seat 8 and tighten up corresponding bracing wire 11 simultaneously, two bracing wires 11 can be laterally to drawing projection screen 3 to be tightened by projection screen 3 and even up；nullIn the present embodiment，The structure of described limiting fixing mechanism is: be provided with a circle ratchet slot 12 on the inner peripheral wall of end set 4 upper grooves 5，Take-up adjustment seat 8 is provided with socket 13，In socket 13, activity is inserted with spacing plug 14，Spacing plug 14 is provided with spacing ratchet 15，It is provided with spring 16 between spacing plug 14 and take-up adjustment seat 8，Spacing plug 14 has to move radially outward to its spacing ratchet 15 to be inserted in ratchet slot 12 under the outside elastic force effect of spring 16 all the time makes take-up adjustment seat 8 and end overlap 4 trend fixed，And when pressing inward against spacing plug 14，When making spacing plug 14 overcome displaced radially inward to the spacing ratchet of outside elastic force 15 of spring 16 to leave ratchet slot 13，Spacing plug 14 will not interfere with take-up adjustment seat 8 and rotates，Above-mentioned limiting fixing mechanism simple in construction，Dismount easy to maintenance；In the present embodiment, take-up adjustment seat 8 is provided with radially-directed hole 17, spacing plug 14 is provided with the guide post 18 that can insert radially-directed hole 17, spacing plug 14 makes spacing plug 14 relatively take-up adjustment seat 8 can only move radially and can not move axially by being directed to bar 18 movable insertion in radially-directed hole 17, spring 16 is set on the guide post between spacing plug 14 and take-up adjustment seat 8, so can improve the stability of spacing plug 14, and then improve the operation stability of equipment；In the present embodiment, it is provided with bracing wire installing hole 19 being positioned on the spool 9 within end set 4, so preferably bracing wire can be fastened on spool, install more convenient；
The operation principle of the present invention is as follows:
After projection screen 3 launches, counterweight pull bar 2 can flatten projection screen 3 by tractive under Gravitative Loads in vertical direction, then two take-up adjustment seats 8 are rotated, make take-up adjustment seat 8 synchronize to drive spool 9 to rotate and tighten up corresponding bracing wire 11, now, two bracing wires 11 can be laterally to drawing projection screen 3, thus at laterally pulled flattening projection screen 3, thus the projection screen entirety after launching is tightened and is evened up, and substantially increases the expansion flatness of projection screen.The invention have the advantage that simple in construction, convenient to install and maintain, projection screen can not only be applied the pulling force of vertical direction, and projection screen can be applied laterally the pull strength drawn, so that the projection screen after Zhan Kaiing can be tightened by entirety and even up, substantially increase the expansion flatness of projection screen.
Claims (4)
1. projection arc curtain tensioner, including the projection screen between curtain spool and counterweight pull bar, it is characterized in that: the both side ends at counterweight pull bar is arranged with an end set respectively, the lateral wall that each end overlaps is respectively provided with fluted, it is respectively arranged with the through hole within connection corresponding end set in the bottom land center of each groove, the bracing wire hole that be connected internal with corresponding end set it is respectively arranged with at the top that each end overlaps, take-up adjustment seat it is inserted with respectively in the groove that each end overlaps, each take-up adjustment seat is respectively arranged with and can insert the spool within corresponding end set from corresponding through hole, each take-up adjustment seat is mutually spacing with corresponding end set fixing by limiting fixing mechanism respectively；The both sides side of projection screen is the most from up to down arranged at intervals with some draw rings, it is also respectively provided with bracing wire in the both sides of projection screen, the upper end of every bracing wire is connected with curtain spool, the lower end of every bracing wire sequentially pass through all draw rings of homonymy after to stretch into corresponding end set internal and be connected with the spool within corresponding end set bracing wire hole through putting with side；When two spools rotate under the drive of corresponding take-up adjustment seat and tighten up corresponding bracing wire simultaneously, two bracing wires can be laterally to drawing projection screen to be tightened by projection screen and even up.
Projection arc curtain tensioner the most according to claim 1, it is characterized in that: the structure of described limiting fixing mechanism is: on the inner peripheral wall of end set upper groove, be provided with a circle ratchet slot, take-up adjustment seat is provided with socket, in socket, activity is inserted with spacing plug, spacing plug is provided with spacing ratchet, it is provided with spring between spacing plug and take-up adjustment seat, spacing plug has to move radially outward to its spacing ratchet to be inserted in ratchet slot under the outside elastic force effect of spring all the time makes take-up adjustment seat overlap, with end, the trend fixed, and when pressing inward against spacing plug, when making spacing plug overcome displaced radially inward to the spacing ratchet of outside elastic force of spring to leave ratchet slot, spacing plug will not interfere with take-up adjustment seat and rotates.
Projection arc curtain tensioner the most according to claim 2, it is characterized in that: in take-up adjustment seat, be provided with radially-directed hole, spacing plug is provided with the guide post that can insert radially-directed hole, spacing plug inserts make in radially-directed hole spacing plug relatively take-up adjustment seat can only move radially and can not move axially by being directed to bar activity, and spring housing is located on the guide post between spacing plug and take-up adjustment seat.
Projection arc curtain tensioner the most according to claim 1, it is characterised in that: it is provided with bracing wire installing hole being positioned on the spool within end set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513525.4A CN105974724B (en) | 2016-07-04 | 2016-07-04 | Project arc curtain tensioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513525.4A CN105974724B (en) | 2016-07-04 | 2016-07-04 | Project arc curtain tensioning apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105974724A true CN105974724A (en) | 2016-09-28 |
| CN105974724B CN105974724B (en) | 2018-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610513525.4A Active CN105974724B (en) | 2016-07-04 | 2016-07-04 | Project arc curtain tensioning apparatus |
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| Country | Link |
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| CN (1) | CN105974724B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527033A (en) * | 2016-12-19 | 2017-03-22 | 李业清 | Windproof and dustproof reel screen |
| CN106773501A (en) * | 2016-12-19 | 2017-05-31 | 李业清 | Horizontally adjustable windproof floating projection screen |
| CN108331381A (en) * | 2018-01-25 | 2018-07-27 | 江苏省建筑工程集团有限公司 | The multifunctional conference Room |
| CN109727556A (en) * | 2019-01-02 | 2019-05-07 | 哈尔滨工业大学 | A kind of space representation device |
| CN110850672A (en) * | 2019-11-21 | 2020-02-28 | 江苏盐西新城教育产业项目开发有限公司 | Projection curtain cloth leveling device |
| CN111361492A (en) * | 2018-12-25 | 2020-07-03 | 孔维 | Movie & TV curtain overspeed device tensioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006077083A1 (en) * | 2005-01-21 | 2006-07-27 | Adeo Group S.P.A. | Projection screen with tensioning mechanism |
| CN201021971Y (en) * | 2007-03-12 | 2008-02-13 | 广州美视晶莹银幕有限公司 | Pull line projection screen |
| CN201222160Y (en) * | 2008-06-19 | 2009-04-15 | 无锡信诺视听设备有限公司 | Silver screen with handwheel adjusting device |
| CN201281799Y (en) * | 2008-10-24 | 2009-07-29 | 极品影视设备科技(深圳)有限公司 | Projection screen |
| CN201876658U (en) * | 2010-07-21 | 2011-06-22 | 何荫理 | Curtain tensioning device |
| CN205910486U (en) * | 2016-07-04 | 2017-01-25 | 张家港宝视特影视器材有限公司 | Projection arc curtain overspeed device tensioner |
-
2016
- 2016-07-04 CN CN201610513525.4A patent/CN105974724B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006077083A1 (en) * | 2005-01-21 | 2006-07-27 | Adeo Group S.P.A. | Projection screen with tensioning mechanism |
| CN201021971Y (en) * | 2007-03-12 | 2008-02-13 | 广州美视晶莹银幕有限公司 | Pull line projection screen |
| CN201222160Y (en) * | 2008-06-19 | 2009-04-15 | 无锡信诺视听设备有限公司 | Silver screen with handwheel adjusting device |
| CN201281799Y (en) * | 2008-10-24 | 2009-07-29 | 极品影视设备科技(深圳)有限公司 | Projection screen |
| CN201876658U (en) * | 2010-07-21 | 2011-06-22 | 何荫理 | Curtain tensioning device |
| CN205910486U (en) * | 2016-07-04 | 2017-01-25 | 张家港宝视特影视器材有限公司 | Projection arc curtain overspeed device tensioner |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527033A (en) * | 2016-12-19 | 2017-03-22 | 李业清 | Windproof and dustproof reel screen |
| CN106773501A (en) * | 2016-12-19 | 2017-05-31 | 李业清 | Horizontally adjustable windproof floating projection screen |
| CN108331381A (en) * | 2018-01-25 | 2018-07-27 | 江苏省建筑工程集团有限公司 | The multifunctional conference Room |
| CN108331381B (en) * | 2018-01-25 | 2020-03-13 | 江苏省建筑工程集团有限公司 | Multifunctional conference hall |
| CN111361492A (en) * | 2018-12-25 | 2020-07-03 | 孔维 | Movie & TV curtain overspeed device tensioner |
| CN111361492B (en) * | 2018-12-25 | 2023-05-09 | 孔维 | Film curtain overspeed device tensioner |
| CN109727556A (en) * | 2019-01-02 | 2019-05-07 | 哈尔滨工业大学 | A kind of space representation device |
| CN110850672A (en) * | 2019-11-21 | 2020-02-28 | 江苏盐西新城教育产业项目开发有限公司 | Projection curtain cloth leveling device |
| CN110850672B (en) * | 2019-11-21 | 2021-07-13 | 亿立影视科技(惠州)有限公司 | Projection curtain cloth leveling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105974724B (en) | 2018-04-06 |
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