CN216485971U - Projection curtain for teaching - Google Patents
Projection curtain for teaching Download PDFInfo
- Publication number
- CN216485971U CN216485971U CN202123191254.0U CN202123191254U CN216485971U CN 216485971 U CN216485971 U CN 216485971U CN 202123191254 U CN202123191254 U CN 202123191254U CN 216485971 U CN216485971 U CN 216485971U
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- projection curtain
- teaching
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- installation
- install bin
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- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The utility model discloses a projection curtain is used in teaching, including inside hollow install bin, the install bin internal rotation is provided with horizontally installation axle, the winding of installation off-axial side has the projection curtain, and the one end of projection curtain runs through and extends to the downside of install bin, the one end that the projection curtain is located the install bin outside is fixed with the locating lever, be provided with the reset assembly to installing the axle location in the install bin. This projection curtain is used in teaching, the projection curtain winding is at the installation epaxial by clockwork spring location, drive the projection curtain expansion through linear electric motor downstream, the lower extreme of projection curtain is fixed by linear electric motor, the upper end is fixed by clockwork spring, good planarization has in the use, and be difficult for being blown up by wind, guarantee teacher's teaching quality, when linear electric motor moves up, clockwork spring drives installation hub rotation and twines the projection curtain and accomodate, the use of the projection curtain of being convenient for.
Description
Technical Field
The utility model relates to a projection equipment technical field specifically is a projection curtain is used in teaching.
Background
In the english teaching, for the convenience show for the student learning materials such as PPT, image often can use the projection curtain, the projection curtain cooperates the projecting apparatus to use usually, but the lift mode of projection curtain for common teaching mostly drives the installation hub rotation and twines the curtain, and in this mode, the lower part of projection curtain sets up for the activity, and the phenomenon that levels inadequately often appears in the bottom, influences projection effect, reduction teaching quality.
Disclosure of Invention
The to-be-solved technical problem of the utility model is overcome current defect, a projection curtain is used in teaching is provided, the projection curtain winding is at the installation epaxial by clockwork spring location, it expandes to drive the projection curtain through linear electric motor downstream, the lower extreme of projection curtain is fixed by linear electric motor, the upper end is fixed by clockwork spring, good planarization has in the use, guarantee teacher's teaching quality, when linear electric motor moves up, clockwork spring drives installation hub rotation and twines the projection curtain and accomodate, the use of the projection curtain of being convenient for, can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a projection curtain is used in teaching, includes inside hollow install bin, the install bin internal rotation is provided with horizontally installation axle, the installation off-axial side winding has the projection curtain, and the one end of projection curtain runs through and extends to the downside of install bin, the one end that the projection curtain is located the install bin outside is fixed with the locating lever.
The installation box is internally provided with a reset assembly for positioning the installation shaft, the side surface of the positioning rod is provided with a driving assembly for pulling the projection curtain to move downwards, and the installation box is internally provided with a cleaning assembly for cleaning dust and sundries on the side surface of the projection curtain.
As a preferred technical scheme of the utility model, reset assembly is including fixing the clockwork spring in the installation axle side, clockwork spring keeps away from the one end of installation axle and the inner wall fixed connection of install bin.
As a preferred technical scheme of the utility model, the install bin downside is provided with vertical guide rail, it is provided with linear electric motor to slide in the vertical guide rail, locating lever and linear electric motor side fixed connection, linear electric motor and external switch electric connection for control linear electric motor's work.
As the utility model discloses a preferred technical scheme, the clearance subassembly sets up the mounting panel in the install bin including rotating, the end fixing of mounting panel has the locating plate, the locating plate side is provided with the clearance pad.
As a preferred technical scheme of the utility model, the mounting panel side is fixed with the elastic rod, the one end and the locating plate side fixed connection of mounting panel are kept away from to the elastic rod.
As a preferred technical scheme of the utility model, vertical guide rail side is fixed with the extension board of being convenient for to its installation, the install bin side is fixed with the fixed plate of being convenient for to its location, the through-hole has all been seted up to the side of extension board, the side of fixed plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses the projection curtain is used in teaching of example, the projection curtain winding is at the epaxial installation by clockwork spring location, it expandes to drive the projection curtain to move down through linear electric motor, the lower extreme of projection curtain is fixed by linear electric motor, the upper end is fixed by clockwork spring, good planarization has in the use, guarantee teacher's teaching quality, when linear electric motor moves up, clockwork spring drives installation hub rotation and twines the projection curtain and accomodate, the use of the projection curtain of being convenient for.
2. The utility model discloses the projection curtain is used in teaching of example, when needing to launch the projection curtain, through linear electric motor gliding downwards on vertical guide rail, the locating lever is drawn and is got the winding projection curtain in the installation axle outside and move down the expansion, the projection curtain expandes the back lower part by linear electric motor restraint location, upper portion by the installation axle restraint location of clockwork spring control, the projection curtain is in comparatively level and smooth state, improve projection quality, the upper and lower part all is fixed on the projection curtain simultaneously, guarantee teaching environment and teaching quality.
3. The utility model discloses the projection curtain is used in teaching of example, when the projection curtain is accomodate, through linear electric motor upwards slide on vertical guide rail, projection curtain lower part loses the restraint, and clockwork spring drives installation hub rotation and twines the projection curtain and accomodates, the use of the projection curtain of being convenient for.
4. The utility model discloses the projection curtain is used in teaching of example, when the projection curtain shifts down and expandes, the projection curtain drives the locating plate rotation with the locating plate contact and through frictional force, and the locating plate of both sides presss from both sides tight projection curtain and is convenient for clear up the pad and clears up debris such as dust, the hair of projection curtain side adhesion, and when the projection curtain shifts up, the locating plate upwards rotates and the separation of projection curtain, guarantees that clockwork spring drives the installation axle and effectively rotates and twine the projection curtain.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the mounting box of the present invention;
fig. 3 is a schematic view of the left front structure of the present invention;
fig. 4 is an enlarged schematic view of the structure at a in fig. 3.
In the figure: 1 install bin, 2 fixed plates, 3 installation axles, 4 projection curtains, 5 locating levers, 6 linear electric motors, 7 vertical guide rails, 8 extension boards, 9 clockwork spring, 10 mounting panels, 11 elastic rods, 12 locating plates, 13 cleaning pads.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a projection curtain is used in teaching, includes inside hollow install bin 1, and 1 internal rotation of install bin is provided with horizontally installation axle 3, and the winding of installation axle 3 outside has projection curtain 4, and the one end of projection curtain 4 runs through and extends to the downside of install bin 1, and the one end that projection curtain 4 is located the install bin 1 outside is fixed with locating lever 5.
Be provided with the reset assembly to installing axle 3 location in the install bin 1, the 5 sides of locating lever are provided with the drive assembly who draws projection curtain 4 and move down, are provided with the clearance subassembly to the clearance of projection curtain 4 side dust debris clearance in the install bin 1.
1 downside of install bin is provided with vertical guide rail 7, it is provided with linear electric motor 6 to slide in vertical guide rail 7, locating lever 5 and 6 side fixed connection of linear electric motor, linear electric motor 6 and external switch electric connection for the work of control linear electric motor 6, when needing to expand projection curtain 4, through linear electric motor 6 lapse on vertical guide rail 7, locating lever 5 draws and gets the winding projection curtain 4 of installation axle 3 outside and moves down and expand.
Reset assembly is including fixing the clockwork spring 9 in installation axle 3 side, clockwork spring 9 keeps away from the one end of installation axle 3 and the inner wall fixed connection of installing case 1, projection curtain 4 expandes the back lower part by linear electric motor 6 restraint location, the installation axle 3 restraint location of upper portion by clockwork spring 9 control, projection curtain 4 is in comparatively smooth state, improve the projection quality, projection curtain 4 lower part all is fixed simultaneously, be difficult for being blown, guarantee teaching environment and teaching quality.
When the projection curtain 4 is stored, the linear motor 6 slides upwards on the vertical guide rail 7, the lower part of the projection curtain 4 loses restraint, and the clockwork spring 9 drives the mounting shaft 3 to rotate to wind and store the projection curtain 4, so that the projection curtain 4 can be used conveniently.
The clearance subassembly is including rotating mounting panel 10 that sets up in install bin 1, the end fixing of mounting panel 10 has locating plate 12, locating plate 12 side is provided with clearance pad 13, mounting panel 10 side is fixed with flexible pole 11, flexible pole 11 includes but not restrict to elastic rubber pole or elastic plastic pole, flexible pole 11 is convenient for clearance pad 13 side and 4 side contacts of projection curtain, the one end and locating plate 12 side fixed connection that mounting panel 10 was kept away from to flexible pole 11.
When projection curtain 4 moves down and expandes, projection curtain 4 and the contact of locating plate 12 drive locating plate 12 through frictional force and rotate, the locating plate 12 of both sides presss from both sides tight projection curtain 4 and is convenient for clear up pad 13 and clears up debris such as dust, hair of 4 side adhesions of projection curtain, and when projection curtain 4 moves up, locating plate 12 upwards rotates and the separation of projection curtain 4, guarantees that clockwork spring 9 drives installation axle 3 and effectively rotates and twine projection curtain 4.
The side of the vertical guide rail 7 is fixed with an extension plate 8 convenient for installation, the side of the installation box 1 is fixed with a fixing plate 2 convenient for positioning, the side of the extension plate 8 and the side of the fixing plate 2 are both provided with through holes, and the anchor rod or the expansion bolt is inserted into the through holes and fixed on the vertical guide rail 7 or the installation box 1 in the wall.
The linear motor 6 used in the present invention is a common electronic component in the prior art, and its working method and circuit structure are known technologies, which are not described herein.
When in use:
when the projection screen 4 needs to be unfolded, the linear motor 6 slides downwards on the vertical guide rail 7, the positioning rod 5 pulls the projection screen 4 wound on the outer side of the mounting shaft 3 to move downwards and unfold, the lower part of the unfolded projection screen 4 is restrained and positioned by the linear motor 6, the upper part of the unfolded projection screen 4 is restrained and positioned by the mounting shaft 3 controlled by the clockwork spring 9, the projection screen 4 is in a relatively flat state, the projection quality is improved, and meanwhile, the upper part and the lower part of the projection screen 4 are fixed, so that the teaching environment and the teaching quality are ensured;
when the projection screen 4 is stored, the linear motor 6 slides upwards on the vertical guide rail 7, the lower part of the projection screen 4 is not restrained, and the clockwork spring 9 drives the mounting shaft 3 to rotate to wind and store the projection screen 4, so that the projection screen 4 can be conveniently used;
when projection curtain 4 moves down and expandes, projection curtain 4 and the contact of locating plate 12 drive locating plate 12 through frictional force and rotate, the locating plate 12 of both sides presss from both sides tight projection curtain 4 and is convenient for clear up pad 13 and clears up debris such as dust, hair of 4 side adhesions of projection curtain, and when projection curtain 4 moves up, locating plate 12 upwards rotates and the separation of projection curtain 4, guarantees that clockwork spring 9 drives installation axle 3 and effectively rotates and twine projection curtain 4.
This projection curtain is used in teaching, the projection curtain winding is at the installation epaxial by clockwork spring location, drive the projection curtain expansion through linear electric motor downstream, the lower extreme of projection curtain is fixed by linear electric motor, the upper end is fixed by clockwork spring, good planarization has in the use, and be difficult for being blown up by wind, guarantee teacher's teaching quality, when linear electric motor moves up, clockwork spring drives installation hub rotation and twines the projection curtain and accomodate, the use of the projection curtain of being convenient for.
The non-public part of the utility model is the prior art, and the concrete structure, the material and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a projection curtain is used in teaching, includes inside hollow install bin (1), its characterized in that: a horizontal installation shaft (3) is rotatably arranged in the installation box (1), a projection curtain (4) is wound on the outer side of the installation shaft (3), one end of the projection curtain (4) penetrates through and extends to the lower side of the installation box (1), and a positioning rod (5) is fixed at one end, located on the outer side of the installation box (1), of the projection curtain (4);
the installation box is characterized in that a reset assembly for positioning the installation shaft (3) is arranged in the installation box (1), a driving assembly for pulling the projection curtain (4) to move downwards is arranged on the side face of the positioning rod (5), and a cleaning assembly for cleaning dust and sundries on the side face of the projection curtain (4) is arranged in the installation box (1).
2. The projection curtain for teaching as claimed in claim 1, wherein: reset assembly is including fixing clockwork spring (9) in installation axle (3) side, clockwork spring (9) keep away from the one end of installation axle (3) and the inner wall fixed connection of install bin (1).
3. The projection curtain for teaching as claimed in claim 1, wherein: install bin (1) downside is provided with vertical guide rail (7), it is provided with linear electric motor (6) to slide in vertical guide rail (7), locating lever (5) and linear electric motor (6) side fixed connection, linear electric motor (6) and external switch electric connection for the work of control linear electric motor (6).
4. The projection curtain for teaching as claimed in claim 1, wherein: the cleaning assembly comprises a mounting plate (10) which is rotatably arranged in the mounting box (1), a positioning plate (12) is fixed at the end of the mounting plate (10), and a cleaning pad (13) is arranged on the side surface of the positioning plate (12).
5. The projection curtain for teaching as recited in claim 4, wherein: the side of the mounting plate (10) is fixed with an elastic rod (11), and one end of the elastic rod (11) far away from the mounting plate (10) is fixedly connected with the side of the positioning plate (12).
6. The projection curtain for teaching as recited in claim 3, wherein: vertical guide rail (7) side is fixed with extension board (8) convenient to its installation, install bin (1) side is fixed with fixed plate (2) convenient to its location, the through-hole has all been seted up to the side of extension board (8), the side of fixed plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123191254.0U CN216485971U (en) | 2021-12-18 | 2021-12-18 | Projection curtain for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123191254.0U CN216485971U (en) | 2021-12-18 | 2021-12-18 | Projection curtain for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216485971U true CN216485971U (en) | 2022-05-10 |
Family
ID=81426185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123191254.0U Active CN216485971U (en) | 2021-12-18 | 2021-12-18 | Projection curtain for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216485971U (en) |
-
2021
- 2021-12-18 CN CN202123191254.0U patent/CN216485971U/en active Active
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