CN204852811U - Projection curtain raises device from bottom to top - Google Patents
Projection curtain raises device from bottom to top Download PDFInfo
- Publication number
- CN204852811U CN204852811U CN201520603669.XU CN201520603669U CN204852811U CN 204852811 U CN204852811 U CN 204852811U CN 201520603669 U CN201520603669 U CN 201520603669U CN 204852811 U CN204852811 U CN 204852811U
- Authority
- CN
- China
- Prior art keywords
- box body
- motor
- projection screen
- projection curtain
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model relates to a projection curtain raises device from bottom to top, including a groove form box body that can hold the projection curtain, its characterized in that: be equipped with the lead screw that two symmetries were laid on the inboard box bottom of groove form box body, the lower extreme of lead screw has linked firmly a worm wheel, is equipped with the motor that has the dual output axle on the inboard box bottom between two lead screws, the output shaft of motor has the worm that meshes with the worm wheel, still be equipped with the elevating platform that both ends and two lead screws correspond the spiro union in the groove form box body, be equipped with a plurality of couples on the elevating platform, hang on the couple and put the projection curtain, be equipped with recess and capping on the outside box bottom of groove form box body, install the storage battery who is used for to the motor power supply in the recess. The utility model discloses simple structure, the simple operation can be swiftly under from and erect the projection curtain to satisfy the user demand.
Description
Technical field
The utility model relates to a kind of projection screen lifting device from bottom to top, belongs to projecting apparatus.
Background technique
It is good that first projector operationally needs projection screen Bradley, and current projection screen is all need to transfer projection screen by scroll form, this just needs first to install projection spool, and it is greatly not convenient that this gets off to use projector just to bring to some urgent need occasion.Therefore, for the problems referred to above be the utility model research object.
Model utility content
In order to solve existing technical deficiency, the utility model provides a kind of projection screen lifting device from bottom to top.
Of the present utility modelly to be characterised in that:
A kind of projection screen lifting device from bottom to top, comprise the channel-shaped box body that can hold projection screen, it is characterized in that: at the bottom of the inner side box of described channel-shaped box body, be provided with two symmetrical screw mandrels laid, the lower end of described screw mandrel is fixed with a worm gear, the motor with double output shaft is provided with at the bottom of inner side box between two screw mandrels, the output shaft of described motor is connected with the worm screw engaged with worm gear, the two ends raising platform that be spirally connected corresponding to two screw mandrels is also provided with in described channel-shaped box body, described raising platform is provided with some hooks, described hook has hung projection screen, groove and groove lid is provided with at the bottom of the outside box of described channel-shaped box body, be installed in order to the battery pack to feeding electric motors in described groove.
Wherein, realize being rotationally connected by bearing between at the bottom of described screw mandrel and inner side box.
Described motor is brake motor.
Advantage of the present utility model: the utility model simple structure, it is convenient to implement, as long as can realize the lifting of projection screen by the clockwise and anticlockwise controlling motor, thus meets the work requirements of projector.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
With reference to figure 1, the utility model relates to a kind of projection screen lifting device from bottom to top, comprise the channel-shaped box body 1 that can hold projection screen, two symmetrical screw mandrels 2 laid are provided with at the bottom of the inner side box of described channel-shaped box body, the lower end of described screw mandrel is fixed with a worm gear 3, the motor 4 with double output shaft is provided with at the bottom of inner side box between two screw mandrels, the output shaft of described motor is connected with the worm screw 5 engaged with worm gear, the two ends raising platform 6 that be spirally connected corresponding to two screw mandrels is also provided with in described channel-shaped box body, described raising platform is provided with some hooks, described hook hangs projection screen 8, groove 9 and groove lid 10 is provided with at the bottom of the outside box of described channel-shaped box body, be installed in described groove in order to the battery pack 11 to feeding electric motors.
In order to ensure that screw mandrel rotates freely, realize being rotationally connected by bearing 7 between at the bottom of above-mentioned screw mandrel and inner side box.
In order to prevent raising platform to be excessively elevated, be provided with in above-mentioned screw mandrel upper end the upper limit position switch controlling the up shutdown of motor, described screw mandrel lower end is provided with the lower position switch controlling the descending shutdown of motor.
In order to ensure that raising platform can not decline after putting in place, above-mentioned motor is brake motor.
Specific implementation process: when needs use projection cloth, as long as rotated forward by drive motor, the worm screw on its output shaft is made to drive worm gear to rotate, worm gear rotates and then drives screw mandrel to rotate, the screw mandrel rotated and then drive raising platform rise, and projection screen is then drawn out gradually along with the rising of raising platform in box body, when reaching locational requirement, owing to adopting brake motor, as long as so motor stopping can complete curtain install requirement; When curtain reclaims, as long as motor reverse direction actuation, projection screen is made slowly to be recovered in box body, in order to avoid made a mess of.
Although specifically show in conjunction with preferred embodiment and describe the utility model; this technological scheme method and access of specific implementation is a lot; the above is only preferred implementation of the present utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (3)
1. projection screen lifting device from bottom to top, comprise the channel-shaped box body that can hold projection screen, it is characterized in that: at the bottom of the inner side box of described channel-shaped box body, be provided with two symmetrical screw mandrels laid, the lower end of described screw mandrel is fixed with a worm gear, the motor with double output shaft is provided with at the bottom of inner side box between two screw mandrels, the output shaft of described motor is connected with the worm screw engaged with worm gear, the two ends raising platform that be spirally connected corresponding to two screw mandrels is also provided with in described channel-shaped box body, described raising platform is provided with some hooks, described hook has hung projection screen, groove and groove lid is provided with at the bottom of the outside box of described channel-shaped box body, be installed in order to the battery pack to feeding electric motors in described groove.
2. a kind of projection screen according to claim 1 lifting device from bottom to top, is characterized in that: realize being rotationally connected by bearing between at the bottom of described screw mandrel and inner side box.
3. a kind of projection screen according to claim 1 lifting device from bottom to top, is characterized in that: described motor is brake motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603669.XU CN204852811U (en) | 2015-08-12 | 2015-08-12 | Projection curtain raises device from bottom to top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603669.XU CN204852811U (en) | 2015-08-12 | 2015-08-12 | Projection curtain raises device from bottom to top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852811U true CN204852811U (en) | 2015-12-09 |
Family
ID=54743356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520603669.XU Expired - Fee Related CN204852811U (en) | 2015-08-12 | 2015-08-12 | Projection curtain raises device from bottom to top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852811U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443932A (en) * | 2016-01-15 | 2016-03-30 | 厦门市迈锋威机械有限公司 | Medical bearing platform |
| CN105467740A (en) * | 2015-12-15 | 2016-04-06 | 重庆触视科技有限公司 | Bottom-up projection screen |
| CN105650414A (en) * | 2016-01-15 | 2016-06-08 | 孝感市大口贸易有限公司 | Medical bearing device with buffering function |
| CN106885117A (en) * | 2017-04-21 | 2017-06-23 | 广州峥航机械设备有限公司 | Television wall hanging structure |
| CN107906309A (en) * | 2017-11-15 | 2018-04-13 | 常州信息职业技术学院 | A kind of novel computer display/panel bracket |
| CN108010473A (en) * | 2017-12-05 | 2018-05-08 | 赣州研顺飞科技有限公司 | A kind of personal cinema equipment |
| CN109027617A (en) * | 2018-07-10 | 2018-12-18 | 葫芦岛智多多科技有限责任公司 | A kind of electronic whiteboard mounting structure |
| CN111396711A (en) * | 2020-03-19 | 2020-07-10 | 中盛弘宇建设科技有限公司 | Residential design platform convenient to adjust |
-
2015
- 2015-08-12 CN CN201520603669.XU patent/CN204852811U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467740A (en) * | 2015-12-15 | 2016-04-06 | 重庆触视科技有限公司 | Bottom-up projection screen |
| CN105467740B (en) * | 2015-12-15 | 2018-02-13 | 重庆触视科技有限公司 | Projection screen from bottom to top |
| CN105443932A (en) * | 2016-01-15 | 2016-03-30 | 厦门市迈锋威机械有限公司 | Medical bearing platform |
| CN105650414A (en) * | 2016-01-15 | 2016-06-08 | 孝感市大口贸易有限公司 | Medical bearing device with buffering function |
| CN106885117A (en) * | 2017-04-21 | 2017-06-23 | 广州峥航机械设备有限公司 | Television wall hanging structure |
| CN106885117B (en) * | 2017-04-21 | 2018-10-12 | 泰州市西陵纺机工具厂 | A kind of television wall hanging structure |
| CN107906309A (en) * | 2017-11-15 | 2018-04-13 | 常州信息职业技术学院 | A kind of novel computer display/panel bracket |
| CN108010473A (en) * | 2017-12-05 | 2018-05-08 | 赣州研顺飞科技有限公司 | A kind of personal cinema equipment |
| CN109027617A (en) * | 2018-07-10 | 2018-12-18 | 葫芦岛智多多科技有限责任公司 | A kind of electronic whiteboard mounting structure |
| CN109027617B (en) * | 2018-07-10 | 2020-08-07 | 瑞安市派乐多教育培训有限公司 | Electronic whiteboard mounting structure |
| CN111396711A (en) * | 2020-03-19 | 2020-07-10 | 中盛弘宇建设科技有限公司 | Residential design platform convenient to adjust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |