CN202661769U - Shell structure of ceiling type electric screen - Google Patents
Shell structure of ceiling type electric screen Download PDFInfo
- Publication number
- CN202661769U CN202661769U CN 201220219450 CN201220219450U CN202661769U CN 202661769 U CN202661769 U CN 202661769U CN 201220219450 CN201220219450 CN 201220219450 CN 201220219450 U CN201220219450 U CN 201220219450U CN 202661769 U CN202661769 U CN 202661769U
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- CN
- China
- Prior art keywords
- shell
- deckboard
- decorative shell
- decorative
- projection screen
- 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 discloses a shell structure of a ceiling type electric screen. A decorative shell is arranged at the lower side of an electric screen shell; an elongated opening for unfolding or folding the screen is arranged in the bottom surface of the decorative shell; a decorative cover plate capable of shielding the elongated opening is also arranged on the decorative shell; one end of the decorative cover plate is hinged on the decorative shell at one side of the elongated opening, and the other end of the decorative cover plate covers on the decorative shell at the other side of the elongated opening; and a drive device for driving the decorative cover plate to open and close is also arranged in the decorative shell. The shell structure has the advantage that as the openable and closeable decorative cover plate is arranged at the elongated opening, when the ceiling type electric screen is not in a use state, the decorative cover plate can be closed to shield the elongated opening, thereby greatly reducing the probability that floating dust enters the electric screen through the elongated opening, ensuring the use effect of the electric screen and prolonging the service life of the electric screen.
Description
Technical field
The utility model relates to the shell structure of ceiling type electric projection screen.
Background technology
The ceiling type electric projection screen is widely used in the places such as classroom, meeting room, showroom, and its hidden upside that is installed on the room furred ceiling offers the strip that allows screen transfer or to pack up uncovered on the furred ceiling ceiling.The shortcoming of above-mentioned ceiling type electric projection screen mounting means is: because it is uncovered to offer the strip that opens wide at the furred ceiling ceiling throughout the year, both affected the global consistency of furred ceiling, not attractive in appearance, make again floating dust easily by the uncovered electric projection screen that enters into of strip, affect the result of use of screen, shortened the serviceable life of electric projection screen.
The utility model content
The purpose of this utility model is: provide a kind of can be with the shell structure of the uncovered ceiling type electric projection screen of closing of strip, thereby greatly reduce floating dust by the uncovered probability that enters into electric projection screen of strip.
For achieving the above object, the technical solution adopted in the utility model is: the shell structure of ceiling type electric projection screen, downside at the electric projection screen shell is provided with a decorative shell, be provided with the strip that allows electric projection screen transfer or to pack up on the bottom surface of decorative shell uncovered, also be provided with on the decorative shell and can cover in the uncovered deckboard of strip, one end of deckboard is hinged on the decorative shell of the uncovered side of strip, another end cap of deckboard also is provided with the drive unit that drives the deckboard opening and closing in the decorative shell on the decorative shell of the uncovered opposite side of strip.
Further, the shell structure of aforesaid ceiling type electric projection screen, wherein, the structure of described drive unit is: tube shaped electric machine is installed in decorative shell, be wound with the stay cord band on the tube shaped electric machine, the outer end of stay cord band is fixed on the deckboard after walking around pulley, and pulley is installed in the decorative shell, and the stay cord band can be in opening with the deckboard pull-up during by rolling.
Further, the shell structure of aforesaid ceiling type electric projection screen, wherein, in decorative shell, also be provided with the position-limit mechanism that limits the deckboard opening angle, described position-limit mechanism is to be installed on the microswitch that is electrically connected in the decorative shell, with tubular motor controller, after stay cord band pull-up deckboard was opened, deckboard can touch the contact of microswitch.
Further, the shell structure of aforesaid ceiling type electric projection screen wherein, also is provided with the decoration flanging of outside stretched flat around the bottom surface of decorative shell.
The utility model has the advantages that: but owing to being provided with the deckboard of opening and closing at the strip open-mouth, just deckboard can be closed to cover strip when leaving unused at ordinary times uncovered, thereby greatly reduce floating dust by the uncovered probability that enters into electric projection screen of strip, guarantee the result of use of electric projection screen, prolonged the serviceable life of electric projection screen.
Description of drawings
Fig. 1 is the general assembly schematic diagram of the shell structure of ceiling type electric projection screen described in the utility model.
Fig. 2 is the schematic diagram of cross-sectional structure shown in the right apparent direction of Fig. 1.
Fig. 3 is the decomposition texture schematic diagram of the shell structure of ceiling type electric projection screen described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
Such as Fig. 1, Fig. 2, shown in Figure 3, the shell structure of ceiling type electric projection screen, downside at electric projection screen shell 1 is provided with a decorative shell 2, be provided with the strip that allows electric projection screen transfer or to pack up uncovered 9 on the bottom surface of decorative shell 2, also be provided with the deckboard 3 that can cover in strip uncovered 9 on the decorative shell 2, one end of deckboard 3 is hinged on the decorative shell 2 of uncovered 9 one sides of strip, another end cap of deckboard 3 is on the decorative shell 2 of uncovered 9 opposite sides of strip, also be provided with the drive unit that drives deckboard 3 opening and closing in the decorative shell 2, its structure is: tube shaped electric machine 4 is installed in decorative shell 2, be wound with stay cord band 5 on the tube shaped electric machine 4, the outer end of stay cord band 5 is fixed on the deckboard 3 after walking around pulley 8, pulley 8 is installed in the decorative shell 2, and stay cord band 5 upwards rolling can be in opening with deckboard 3 pull-ups.In decorative shell 2, also be provided with the position-limit mechanism that limits deckboard 3 opening angles, described position-limit mechanism is to be installed on the microswitch 6 that is electrically connected in the decorative shell 2, with the controller of tube shaped electric machine 4, after stay cord band 5 pull-up deckboards 3 were opened, deckboard 3 can touch the contact 61 of microswitch 6.In the present embodiment, around the bottom surface of decorative shell 2, also be provided with the decoration flanging 7 of outside stretched flat.
Principle of work of the present utility model is as follows: at first will be installed in the electric projection screen of decorative shell on the ceiling, decoration flanging 7 around the decorative shell 2 hides around the ceiling upper shed, play beauty function, before electric projection screen uses, as shown in Figure 2, tube shaped electric machine 4 rotates, and the stay cord band 5 that drives coiling on it rotates together, make upwards rolling and with deckboard 3 pull-ups of stay cord band 5, rotation along with tube shaped electric machine 4, stay cord band 5 with deckboard 3 pull-ups until deckboard 3 touches the contact 61 on the microswitches 6, because microswitch 6 is electrically connected with the controller of tube shaped electric machine 4, controller sends signal quits work tube shaped electric machine 4, and this moment, deckboard 3 was in opening, and electric projection screen can be protruding from strip uncovered 9; When electric projection screen is finished using, electric projection screen rolling from strip uncovered 9 is complete, tube shaped electric machine 4 is to counter-rotation, make stay cord band 5 loosening, deckboard 3 is downward a homogeneous example showing an inverse connection between the middle term and the major term under action of gravitation, and strip uncovered 9 is covered in, and so greatly reduces floating dust by the uncovered probability that enters on the electric projection screen of strip, guarantee the result of use of electric projection screen, prolonged the serviceable life of electric projection screen.
Claims (4)
1. the shell structure of ceiling type electric projection screen, it is characterized in that: the downside at the electric projection screen shell is provided with a decorative shell, be provided with the strip that allows electric projection screen transfer or to pack up on the bottom surface of decorative shell uncovered, also be provided with on the decorative shell and can cover in the uncovered deckboard of strip, one end of deckboard is hinged on the decorative shell of the uncovered side of strip, another end cap of deckboard also is provided with the drive unit that drives the deckboard opening and closing in the decorative shell on the decorative shell of the uncovered opposite side of strip.
2. the shell structure of ceiling type electric projection screen according to claim 1, it is characterized in that: the structure of described drive unit is: tube shaped electric machine is installed in decorative shell, be wound with the stay cord band on the tube shaped electric machine, the outer end of stay cord band is fixed on the deckboard after walking around pulley, pulley is installed in the decorative shell, and the stay cord band can be in opening with the deckboard pull-up during by rolling.
3. the shell structure of ceiling type electric projection screen according to claim 2, it is characterized in that: in decorative shell, also be provided with the position-limit mechanism that limits the deckboard opening angle, described position-limit mechanism is to be installed on the microswitch that is electrically connected in the decorative shell, with tubular motor controller, after stay cord band pull-up deckboard was opened, deckboard can touch the contact of microswitch.
4. it is characterized in that according to claim 1 and 2 or the shell structure of 3 described ceiling type electric projection screens: the decoration flanging that around the bottom surface of decorative shell, also is provided with outside stretched flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219450 CN202661769U (en) | 2012-05-16 | 2012-05-16 | Shell structure of ceiling type electric screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219450 CN202661769U (en) | 2012-05-16 | 2012-05-16 | Shell structure of ceiling type electric screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661769U true CN202661769U (en) | 2013-01-09 |
Family
ID=47456662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219450 Expired - Fee Related CN202661769U (en) | 2012-05-16 | 2012-05-16 | Shell structure of ceiling type electric screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681324A (en) * | 2012-05-16 | 2012-09-19 | 江苏红叶视听器材股份有限公司 | Shell structure of ceiling type electric projection screen |
-
2012
- 2012-05-16 CN CN 201220219450 patent/CN202661769U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681324A (en) * | 2012-05-16 | 2012-09-19 | 江苏红叶视听器材股份有限公司 | Shell structure of ceiling type electric projection screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140516 |