CN218350705U - Projection curtain for laser projection - Google Patents
Projection curtain for laser projection Download PDFInfo
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- CN218350705U CN218350705U CN202222720090.4U CN202222720090U CN218350705U CN 218350705 U CN218350705 U CN 218350705U CN 202222720090 U CN202222720090 U CN 202222720090U CN 218350705 U CN218350705 U CN 218350705U
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Abstract
The utility model discloses a projection curtain for laser projection belongs to projection curtain field, a projection curtain for laser projection, including rolling up the box, spool periphery winding has transparent curtain, is located transparent curtain both sides the bottom plate bottom is provided with the same clearance subassembly of two sets of structures, and it possesses the same clearance subassembly of two sets of structures, improves cleaning efficiency, and transparent curtain is made by transparent conductive film, polymer liquid crystal layer and transparent protection film, realizes that transparent curtain presents transparent state under the circumstances of transparent curtain circular telegram, and transparent curtain presents fuzzy opaque state under the circumstances of not circular telegram, shelters from opposite scenery to make things convenient for the light that laser projector throws to directly to watch on transparent curtain, do not influence viewing effect.
Description
Technical Field
The utility model relates to a projection curtain field, more specifically say, relate to a projection curtain for laser projection.
Background
With the improvement of living standard of people, most families have adopted laser projectors to replace traditional televisions, and along with that, a projection curtain is needed to be used together with the laser projectors, the existing projection curtains are various, but the following defects are still found in the using process:
1. the existing projection curtain is usually provided with a brush at a strip-shaped opening position at the bottom of a winding box to scrape dust of the projection curtain wound and released by the strip-shaped opening, but the dust scraping efficiency is lower because the brush is fixedly arranged;
2. the existing projection screen is mostly made of lightproof composite cloth materials, when the projection screen is released, shielding is easy to form, and the opposite scenery can be seen only after the projection screen is rolled up, so that the use convenience is poor;
therefore, we propose a projection curtain for laser projection to solve the above existing problems.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the problems in the prior art, the utility model aims to provide a projection curtain for laser projection, which is provided with two groups of cleaning components with the same structure, and a cleaning motor inside the cleaning components is utilized to drive brush rollers positioned at two sides of the transparent curtain, so that the brush rollers rotate at high speed to clean dust adhered to the two sides of the transparent curtain, thereby improving the cleaning efficiency; through the transparent curtain that sets up, and transparent curtain is by transparent conductive film, polymer liquid crystal layer and transparent protection film are made, the transparent curtain presents transparent state under the circumstances of transparent curtain circular telegram, need not this transparent curtain of rolling and can see opposite scenery, do not shelter from opposite scenery, transparent curtain presents fuzzy opaque state under the circumstances of transparent curtain not circular telegram, shelter from opposite scenery, thereby make things convenient for the light that laser projector throws to directly watch on transparent curtain, do not influence the viewing effect.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides a projection curtain for laser projection, includes the coiling box, coiling box bottom has the bottom plate through screw fixed mounting, just the inside bar opening that has seted up of bottom plate, the coiling box is inside to be connected with the spool through the axle bed rotation, spool wherein one end extends to the coiling box outside, coiling box one side has rolling motor through bolt fixed mounting, just rolling motor's drive shaft pass through the shaft coupling with spool one end is connected, the winding of spool periphery has transparent curtain, transparent curtain bottom run through in the bar opening is inside and extend to the coiling box outside, transparent curtain bottom fixedly connected with counter weight box is located transparent curtain both sides the bottom plate bottom is provided with the same clearance subassembly of two sets of structures.
Furthermore, the cleaning assembly comprises lug plates welded at two ends of the bottom plate, a roller shaft is rotatably connected between the lug plates, a brush roller is sleeved on the periphery of the roller shaft, one end of the roller shaft penetrates through the outer side of the lug plates and corresponds to one side of the lug plates, a cleaning motor is fixedly mounted on one side of each lug plate through a screw, and a driving shaft of the cleaning motor is connected with one end of the roller shaft through a coupler.
Furthermore, the transparent curtain comprises a group of transparent conductive films, a polymer liquid crystal layer is arranged between the transparent conductive films, and a transparent protective film is fixedly bonded on the other side of the transparent conductive films through adhesives.
Further, the fixed two electrode copper foils that all have of gluing in transparent curtain bottom, two the wire has all been welded to electrode copper foil one side, the inside draw-in groove that opens and shuts of counter weight box, the draw-in groove joint in two the electrode copper foil outside.
Furthermore, the bottom of each electrode copper foil is provided with contact ends, and the contact ends in the two electrode copper foils are respectively contacted with the bottom of the corresponding transparent conductive film.
Further, the length of the strip-shaped opening is larger than the width of the transparent curtain.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) According to the scheme, the cleaning assembly is provided with two groups of cleaning assemblies with the same structure, the cleaning motor in the cleaning assemblies is utilized to drive the brush rollers positioned on two sides of the transparent curtain, so that the brush rollers rotate at a high speed to clean dust adhered to two sides of the transparent curtain, and the cleaning efficiency is improved;
(2) This scheme, transparent curtain through setting up, and transparent curtain is by transparent conductive film, polymer liquid crystal layer and transparent protection film are made, the transparent curtain presents the transparent state under the circumstances of transparent curtain circular telegram, need not this transparent curtain of rolling and can see opposite scenery, do not shelter from opposite scenery, transparent curtain presents fuzzy opaque state under the circumstances of transparent curtain not circular telegram, shelter from opposite scenery, thereby make things convenient for the light that laser projector throws to directly watch on transparent curtain, do not influence the viewing effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the cleaning assembly of the present invention;
fig. 3 is a schematic view of the electrode copper foil mounting structure of the present invention;
fig. 4 is a schematic view of the cross-sectional structure of the transparent curtain of the present invention;
FIG. 5 is a schematic view of the direction of light rays when the transparent curtain of the present invention is powered off;
fig. 6 is a schematic view of the direction of light rays when the transparent curtain is powered on.
The numbering in the figures illustrates:
1. a coiling box;
2. a base plate; 201. a strip-shaped opening;
3. a winding motor;
4. a transparent curtain; 401. a transparent conductive film; 402. a polymer liquid crystal layer; 403. a transparent protective film; 404. an electrode copper foil; 4041. a contact end; 405. a wire;
5. a weight box; 501. a card slot;
6. cleaning the assembly; 601. a tab; 602. a brush roller; 603. and cleaning the motor.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
The embodiment is as follows:
referring to fig. 1-6, a projection curtain for laser projection comprises a winding box 1, a bottom plate 2 is fixedly mounted at the bottom of the winding box 1 through a screw, a strip-shaped opening 201 is formed in the bottom plate 2, a winding shaft is rotatably connected to the inside of the winding box 1 through a shaft seat, one end of the winding shaft extends to the outside of the winding box 1, a winding motor 3 is fixedly mounted on one side of the winding box 1 through a bolt, a driving shaft of the winding motor 3 is connected with one end of the winding shaft through a coupler, a transparent curtain 4 is wound on the periphery of the winding shaft, the bottom of the transparent curtain 4 penetrates through the inside of the strip-shaped opening 201 and extends to the outside of the winding box 1, a counterweight box 5 is fixedly connected to the bottom of the transparent curtain 4, and two groups of cleaning assemblies 6 with the same structure are arranged at the bottoms of bottom plates 2 on two sides of the transparent curtain 4.
The winding motor 3 is started to drive the reel inside the winding box 1 to rotate, winding or releasing of the transparent curtain 4 is completed, the cleaning assembly 6 is started to scrape dust on two sides of the transparent curtain 4, the transparent curtain 4 is kept clean, the transparent curtain 4 is adjusted to enable the transparent curtain 4 to be transparent or fuzzy, and scenery can be conveniently watched or pictures projected by the laser projector can be conveniently watched by matching with the laser projector.
Referring to fig. 2, the cleaning assembly 6 includes lug plates 601 welded at two ends of the bottom of the base plate 2, a roller shaft is rotatably connected between the two lug plates 601, a brush roller 602 is sleeved on the periphery of the roller shaft, one end of the roller shaft penetrates through the outer side of the lug plate 601, a cleaning motor 603 is fixedly mounted on one side corresponding to the lug plate 601 through a screw, and a driving shaft of the cleaning motor 603 is connected with one end of the roller shaft through a coupling.
Two cleaning motors 603 inside the cleaning assembly 6 are respectively started to drive the corresponding roller shafts to rotate, and then the corresponding brush rollers 602 are driven to rotate, so that the two sides of the transparent curtain 4 are scraped.
Referring to fig. 3 and 4, the transparent curtain 4 includes a set of transparent conductive films 401, a polymer liquid crystal layer 402 is disposed between the set of transparent conductive films 401, transparent protective films 403 are fixedly bonded to the other sides of the set of transparent conductive films 401 through adhesives, two electrode copper foils 404 are fixedly bonded to the bottom of the transparent curtain 4, wires 405 are welded to one sides of the two electrode copper foils 404, a clamping groove 501 is opened and closed inside the weight box 5, the clamping groove 501 is clamped to the outer sides of the two electrode copper foils 404, contact ends 4041 are disposed at the bottom of the electrode copper foils 404, and the contact ends 4041 inside the two electrode copper foils 404 are respectively contacted with the bottom of the corresponding transparent conductive films 401.
The wires 405 welded on one side of the two electrode copper foils 404 are respectively connected with the positive electrode and the negative electrode of a power supply, so that a group of transparent conductive films 401 are respectively positively or negatively charged under the condition that the power supply is electrified, liquid crystal particles in the polymer liquid crystal layer 402 are ionized, the liquid crystal particles are uniformly distributed, light rays on two sides can smoothly penetrate through the transparent conductive films, the transparent curtain 4 is in a transparent state, opposite scenery can be conveniently seen, under the condition that the power supply is electrified, the group of transparent conductive films 401 are not electrified, the liquid crystal particles in the polymer liquid crystal layer 402 cannot be ionized, the liquid crystal particles are in an irregular distribution state at the moment, namely the transparent curtain 4 is in an opaque state, the light rays on two sides cannot smoothly penetrate through the transparent curtain 4, the opposite scenery can not be seen, and projected pictures can be seen when the light rays of the laser projector irradiate on the transparent curtain 4.
Referring to fig. 1, the length of the stripe-shaped opening 201 is greater than the width of the transparent curtain 4.
The transparent curtain 4 is prevented from being wound or released inside the strip-shaped opening 201 to cause interference.
When in use: firstly, install this rolling box 1 in wall or window one side, start rolling motor 3 and can drive the inside spool of rolling box 1 and rotate, accomplish the rolling or the release to transparent curtain 4, start cleaning assembly 6 and can scrape the brush to the dust of transparent curtain 4 both sides, cleaning motor 603 drives the roller that corresponds and rotates promptly, and then drive corresponding brush roller 602 and rotate, thereby scrape the brush to transparent curtain 4 both sides, then the positive negative pole of power is connected respectively to the wire 405 that two electrode copper foils 404 one side all welded, make under the circumstances of power circular telegram a set of transparent conducting film 401 positively charged or negatively charged respectively, ionize the liquid crystal particle inside polymer liquid crystal layer 402, make the liquid crystal particle present the even state of arranging, the light of both sides can pierce through smoothly, thereby make this transparent curtain 4 present the transparent state, conveniently see opposite scenery, under the circumstances of power outage, a set of transparent conducting film 401 all is electrified this moment, can't carry out ionization to the liquid crystal particle inside polymer liquid crystal layer 402, liquid crystal particle present the random state of arranging this moment, transparent curtain 4 promptly, and then the opaque screen 4 can's both sides can's enough opaque scenery, and then can's light can's the unable seeing opposite light can's on the transparent projection machine can's illumination this moment.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides a projection curtain for laser projection, includes rolling up box (1), its characterized in that: the utility model discloses a winding machine, including winding box (1), reel, transparent curtain (4) bottom run through in winding box (1) one side has rolling motor (3) through bolt fixed mounting, just the inside axle bed rotation that is connected with the reel that passes through of winding box (1), wherein one end of reel extends to the winding box (1) outside, winding box (1) one side has rolling motor (3), just the drive shaft of rolling motor (3) pass through the shaft coupling with reel one end is connected, the reel periphery winding has transparent curtain (4), transparent curtain (4) bottom run through in bar opening (201) are inside and extend to the winding box (1) outside, transparent curtain (4) bottom fixedly connected with counter weight box (5), be located transparent curtain (4) both sides bottom plate (2) bottom is provided with two sets of structure the same clearance subassembly (6).
2. A projection curtain as claimed in claim 1, wherein: clearance subassembly (6) including the welding bottom plate (2) bottom both ends auricle (601), two rotate between auricle (601) and be connected with the roller, just roller periphery has cup jointed brush roller (602), one of them end of roller run through in auricle (601) outside, and correspond auricle (601) one side has clearance motor (603) through screw fixed mounting, the drive shaft of clearance motor (603) pass through the shaft coupling with roller one end is connected.
3. A projection curtain as claimed in claim 1, wherein: the transparent curtain (4) comprises a group of transparent conductive films (401), a polymer liquid crystal layer (402) is arranged between the transparent conductive films (401), and the other sides of the transparent conductive films (401) are fixedly bonded with transparent protective films (403) through adhesives.
4. A projection screen for laser projection as claimed in claim 3, wherein: transparent curtain (4) bottom is fixed to glue and all has two electrode copper foil (404), two wire (405) have all been welded to electrode copper foil (404) one side, the inside draw-in groove (501) that opens and shuts of counter weight box (5), draw-in groove (501) joint in two electrode copper foil (404) outside.
5. The projection curtain of claim 4, wherein: the bottom of each electrode copper foil (404) is provided with a contact end (4041), and the contact ends (4041) in the two electrode copper foils (404) are respectively contacted with the bottom of the corresponding transparent conductive film (401).
6. A projection curtain as claimed in claim 1, wherein: the length of the strip-shaped opening (201) is larger than the width of the transparent curtain (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222720090.4U CN218350705U (en) | 2022-10-11 | 2022-10-11 | Projection curtain for laser projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222720090.4U CN218350705U (en) | 2022-10-11 | 2022-10-11 | Projection curtain for laser projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218350705U true CN218350705U (en) | 2023-01-20 |
Family
ID=84897834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222720090.4U Active CN218350705U (en) | 2022-10-11 | 2022-10-11 | Projection curtain for laser projection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218350705U (en) |
-
2022
- 2022-10-11 CN CN202222720090.4U patent/CN218350705U/en active Active
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