CN109692851A - Large-screen dust-extraction unit and its method - Google Patents
Large-screen dust-extraction unit and its method Download PDFInfo
- Publication number
- CN109692851A CN109692851A CN201710986032.7A CN201710986032A CN109692851A CN 109692851 A CN109692851 A CN 109692851A CN 201710986032 A CN201710986032 A CN 201710986032A CN 109692851 A CN109692851 A CN 109692851A
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- CN
- China
- Prior art keywords
- screen
- dust
- air
- vibration
- extraction unit
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of large-screen dust-extraction unit and its methods, which is applied to a screen unit, and includes: a vibration unit and an air flow unit；The screen unit includes a large-screen, which adheres to an at least dust；The vibration unit shakes the dust from the large-screen to shake the large-screen including a vibration generation device；The air flow unit includes an air flow-producing device, in generating air-flow in the large-screen, which is taken away the large-screen；Large-screen dust-extraction unit of the invention and its method can be dusted operation to large-screen while playing film, and not influenced by large-screen shape, suitable for plane configuration, curved-surface shape, hemisphere face form, the large-screen of spherical surface form.
Description
Technical field
The invention relates to a kind of dust-extraction units, especially with respect to a kind of large-screen dust-extraction unit and its method.
Background technique
Screen is the indispensable part of projection arrangement, and the higher screen of quality can be clear by the light of projector
Ground is presented in the eyes of spectators.When screen is attached by dust, the brightness and comparison of presentation can all decline, or even will appear bright dark
Striped.Therefore screen must be cleared up often, preferable projected picture is presented.
Science and technology is maked rapid progress, and shadow casting technique becomes better and better, and the screen that can be projected is increasing, it might even be possible to be projeced into curved surface
Large-screen, in general, large-screen will use the rigid plastics plate or hard metal plate of several small sizes,
With the fixed position of support frame, it is combined into large-screen, even large-scale curve screens.When the size of screen is bigger, cleaning is shielded
The difficulty of curtain will rise.
For example, the cleaning of large-screen, it is necessary to use high-altitude operation vehicle, or set up the mode of scaffold, with dry type
Or the technology of wet type carries out screen cleaning, does not merely have to close, if screen is curved surface, some screen areas can not also be touched
And cause can not clean awkward situation.
As shown in fig.1, be U.S. Patent No. US7666262B2, a method of cleaning large-screen is suitable for clear
Clean large-screen A uses a cleaning head B, a hawser D, a pulley C, a upper mounting bracket M and a capstan winch E.
Controlling capstan winch E can control the upright position of cleaning head B, and controlling upper mounting bracket M can control the cleaning
The horizontal position of head B, so that cleaning head B cleans the surface large-screen A.
Although known technology is still had the disadvantage that in actual use with the open technology for cleaning large-screen
One, it can not watch:
Known technology is that large-screen is cleaned using cleaning head, and when cleaning can stop the light of projection, can not be in cleaning screen
Projected picture simultaneously.
Two, curve screens can not be applied to:
Known technology is that cleaning head is transferred to eminence using hawser, to clean plane screen, when screen be curved-surface shape, even
When spherical surface form, it is not available the cleaning that known technology carries out screen.
Therefore, curved face type large-screen, and projected picture while cleaning how are cleaned, is that related technical personnel need
The target of effort.
Summary of the invention
In view of this, a purpose of the invention is to be to provide a kind of large-screen dust-extraction unit, it is applied to a screen list
Member, and include a vibration unit and an air flow unit.
The screen unit includes a large-screen, which adheres to an at least dust.
The vibration unit includes that a vibration generation device shakes the dust and shield from the large size to shake the large-screen
Curtain.
The air flow unit includes an air flow-producing device, in generating air-flow in the large-screen, by the dust band
From the large-screen.
Another technological means of the invention is to be that above-mentioned large-screen dust-extraction unit also includes a static elimination list
Member comprising a static eraser, to eliminate the electrostatic of the dust.
Another technological means of the invention is to be that above-mentioned vibration generation device is one generate the large-screen
The percussion component of vibration.
Another technological means of the invention is to be that above-mentioned vibration generation device is one generate the large-screen
The sound wave of vibration generates component.
Another technological means of the invention is to be that the shape of above-mentioned large-screen is plane configuration, curved-surface shape, half
One of spherical surface form, spherical surface form.
Another technological means of the invention is to be that above-mentioned air flow-producing device is exhaust equipment, big to aspirate this
Air on type screen makes to generate air-flow in the large-screen.
Another technological means of the invention, be above-mentioned screen unit further include one connect with the large-screen it is negative
Space is pressed, which is equipped with several holes, which is exhaust equipment, to aspirate the negative pressure space
Air makes several holes of the large-screen generate air-flow.
Another technological means of the invention is to be that above-mentioned screen unit further includes a branch connecting with the large-screen
Component is supportted, which is set on the supporting member, and taps the supporting member, the power which will hit against
Amount conduction is to the large-screen, so that the large-screen generates vibration.
It is another object of the present invention to be to provide a kind of large-screen dust removal method, including a vibration step and a band
From step.
The vibration step is first carried out, an at least dust is adhered in a large-screen, a vibration generation device makes the large size
Screen generates vibration, so that the dust shakes from the large-screen.
Finally execute this and take away step, an air flow-producing device in generating air-flow in the large-screen, with take away shaken from
The large-screen dust.
Another technological means of the invention is to be above-mentioned large-screen dust removal method, also wraps before the vibration step
A static elimination step is included, the large-screen is issued using a static eraser and neutralizes ion, is attached to this to eliminate
The electrostatic of the dust of large-screen.
Beneficial functional of the invention is, the dust for being attached to the large-screen is first neutralized using the static eraser
Electrostatic reduces the strength that the dust is attached to the large-screen, which is bestowing energy to the large-screen, makes
The large-screen generates vibration, shakes the dust from the large-screen, and using the air flow-producing device in the large-screen table
Face generates air-flow, to take away the dust for leaving the large-screen.
Detailed description of the invention
Fig. 1 is a kind of U.S. Patent No. US7666262B2 schematic device for clearing up large-screen；
Fig. 2 is the side elevational cross-section form schematic diagram of the first preferred embodiment of large-screen dust-extraction unit of the present invention；
Fig. 3 is the top view cross section form schematic diagram of the first preferred embodiment of large-screen dust-extraction unit of the present invention；
Fig. 4 is the side elevational cross-section form schematic diagram of the second preferred embodiment of large-screen dust-extraction unit of the present invention；
Fig. 5 is the side elevational cross-section form schematic diagram of the third preferred embodiment of large-screen dust-extraction unit of the present invention；
Fig. 6 is the side elevational cross-section form schematic diagram of the 4th preferred embodiment of large-screen dust-extraction unit of the present invention；
Fig. 7 is the step flow chart of large-screen dust removal method of the present invention.
Symbol description in attached drawing:
A dust；3 screen units；31 large-screens；311 holes；32 negative pressure spaces；4 vibration units；41 vibrations generate
Device；5 air flow units；51 air flow-producing devices；6 static elimination units；61 static erasers；901~903 steps.
Specific embodiment
Related Applications Patent characteristic for the present invention and technology contents, in following cooperation with reference to four preferable realities of schema
It applies in the detailed description of example, can clearly present.It should be noted that similar component is with identical before being described in detail
Number indicate.
Refering to shown in Fig. 2,3, for a kind of first preferred embodiment of large-screen dust-extraction unit of the present invention, of the invention is big
Type screen dust-extraction unit is applied to a screen unit 3, and includes a vibration unit 4, an air flow unit 5 and a static elimination list
Member 6.
The screen unit 3 includes a large-screen 31, and in first preferred embodiment, the shape of the large-screen 31 is song
Face form, about 20 meters of height and the width, projector is by ray cast to the negative camber of the large-screen 31.The large-screen 31
Negative camber by different height at be provided with body-sensing seat, the various viewing angles of analog, it is further provided to spectators' vision,
The simulation effect of the sense of hearing and somatosensory.
Wherein, the material of the large-screen 31 is rigid plastics or metal material, and is designed to several various sizes of modelings
Flitch material or sheet metal, then with a supporting member (schema is not shown), several plastic plates or sheet metal position are consolidated
It is fixed, and several plastic plates or sheet metal is made to be combined into the large-screen 31 with curved surface.
Preferably, the supporting member is combined type steelframe or aluminum frame, several plastic plates or sheet metal are supportted vertical
In aerial, and the supporting member is made to link together with the large-screen 31, due to being combined into special building with steelframe or aluminum frame
Structure is known to be known in the art, and is widely used in Building technology, and also the emphasis of non-present invention, no longer repeats in detail herein.
Adrift this can be kept big even if indoors, in air or a little dust A can be flooded with by dust A in general air
The situation that an at least dust A can be adhered on type screen 31, when the dust A quantity of attachment rises, it will the picture for influencing projection, because
This large-screen 31 for being used for projection need to periodically be dusted cleaning operation.
The size of the large-screen 31 is larger, and is designed to curved-surface shape again, can not be carried out in a manner of taking scaffold artificial
Cleaning, and it is set to indoor large-screen 31, carrying out cleaning using motor ladder is also a very difficult engineering, or even is had
Some regions cause partial region cleaning unclean because that can not touch, and influence the presentation of projected picture instead.
The vibration unit 4 includes a vibration generation device 41, to shake the large-screen 31, so that the large-screen 31
Vibration is generated, shakes dust A from the large-screen 31.Preferably, the vibration generation device 41 is percussion pneumatically or electrically
Component, and be set on the supporting member, then tap the supporting member, the strength which will hit against is conducted big to this
Type screen 31, so that the large-screen 31 generates vibration.
The supporting member being made of combined type steelframe or aluminum frame, is usually combined with screw, therefore can be conducted
Seismic wave can receive seismic wave and generate vibration, when this in addition the large-screen 31 is hard plastics or hard metal material
Large-screen 31 generates vibration, just have an opportunity to shake dust A from.When actual implementation, which can be cloth material
Material, the vibration generation device 41 directly tap the large-screen 31, so that the dust A for being attached to the large-screen 31 is detached from, no
It should be as limit.
The air flow unit 5 includes an air flow-producing device 51, is in generating air-flow in the large-screen 31, by the dust
A takes away the large-screen 31.Preferably, the air flow-producing device 51 is exhaust equipment, to aspirate in the large-screen 31
Air makes to generate air-flow in the large-screen 31.
It is to be sealed in the rear space of the large-screen 31 using building or compartment in first preferred embodiment
It closes, defines a negative pressure space 32 to surround, and suction opening, the air flow-producing device 51 suction are set in 31 surrounding of large-screen
The air of the negative pressure space 32 makes the interior of the large-screen 31 so that the suction opening extracts the air around the large-screen 31
Curved surface will generate air-flow.When actual implementation, the suction opening and the air flow-producing device 51 directly can be connected with exhaust column, directly
The air around the large-screen 31 is aspirated, is not required to around the negative pressure space 32 is gone out, it should not be as limit.
The static elimination unit 6 includes a static eraser 61, to eliminate the electrostatic of dust A.This first compared with
In good embodiment, which is set to the top of the large-screen 31, and to the negative camber of the large-screen 31
Positive/negative ion is issued, to eliminate the electrostatic for being located at dust A in the large-screen 31.When actual implementation, several electrostatic can be set
Cancellation element 61, and the orientation issued respectively with the positive/negative ion of motor control, to eliminate the quiet of dust A in the large-screen 31
Electricity.
Inventor is it is emphasized that the large-screen 31 is set to interior, it will usually and it opens air-conditioning and spectators is allowed to be comfortable on,
Therefore indoor air is more dry, is easy that dust A is allowed to accumulate electrostatic with the large-screen 31 and attract one another, causes to shake
Strength dust A can not be shaken from the large-screen 31.
After the dust A for being attached to the large-screen 31 is eliminated electrostatic, dust A and the large-screen 31 do not have electrostatic
Attraction, the vibration generation device 41 make the large-screen 31 generate vibration, can shake from dust A, and produced by the air-flow
Air-flow caused by generating apparatus 51 takes away, the effect of to reach 31 dedusting of large-screen.When actual implementation, it can be not required to this is arranged quiet
Electricity removal apparatus 61, it is single to be taken away dust A with the vibration generation device 41 and the air flow-producing device 51, it should not be as
Limit.
As shown in fig.4, for a kind of second preferred embodiment of large-screen dust-extraction unit of the present invention, the second preferable reality
It is roughly the same with first preferred embodiment to apply example, something in common no longer repeats in detail herein, the difference is that, large size screen
The shape of curtain 31 is plane configuration, and large-screen 31 is equipped with several holes 311.
Wherein, the negative pressure space 32 of the screen unit 3 is connect with the large-screen 31, so that the negative pressure space 32 and the number
A hole 311 is connected, which is exhaust equipment, to aspirate the air of the negative pressure space 32, keeps this big
Several holes 311 of type screen 31 generate air-flow.
Preferably, the aperture of several holes 311 is 1mm, which is spaced each other 1cm, so that several holes
Hole 311 is dispersedly set in the large-screen 31, and when actual implementation, the aperture of several holes 311 and spacing distance should be with
Actual use is configured, should not be as limit.
The aperture of several holes 311 is little, therefore spectators will not discover several holes when projected picture is watched in a distant place
The presence in hole 311, the pressure difference inside and outside the adjustable large-screen 31 of several holes 311, avoids pressure difference is excessive from making
At the destruction of the large-screen 31.In addition to this, which can conduct sound, and stereo set can be set in this
The rear of large-screen 31, allows spectators not can be appreciated that stereo set, has effects that beauty.
The vibration generation device 41 is that sound wave generates component, generates sound wave to air so that the large-screen 31 generates shake
It is dynamic, preferably, the vibration generation device 41 is the stereo set of projection arrangement, so that the large-screen 31 is generated shake by air
It is dynamic.
It shakes, can shake from the dust A for being attached to the large-screen 31, dust A can be by gas when the large-screen 31 generates
Stream drives, and enters the negative pressure space 32 via several holes 311, and be externally discharged, to reach the function of 31 dedusting of large-screen
Effect.
As shown in fig.5, for a kind of third preferred embodiment of large-screen dust-extraction unit of the present invention, the third is preferably real
It is roughly the same with second preferred embodiment to apply example, something in common no longer repeats in detail herein, the difference is that, large size screen
31 shapes of curtain are hemisphere face form.
The large-screen 31 of three preferred embodiment is the celestial body ball screen curtain for projecting celestial body, should using the supporting member
Large-screen 31 is placed in indoor ceiling, and the large-screen 31 and ceiling surround and define the negative pressure space 32, the air-flow
Generation device 51 aspirates the air of the negative pressure space 32, so that several holes 311 in the large-screen 31 generate air-flow.
It is shaken when the vibration generation device 41 generates the large-screen 31, and cooperates the static eraser 61 big to this
Type screen 31 and the dust A for being attached to the large-screen 31 eliminate electrostatic, shake the dust A for being attached to the large-screen 31
From dust A will be driven by air-flow, to the negative pressure space 32 and be brought away from by several holes 311.
As shown in fig.6, the 4th is preferably real for a kind of 4th preferred embodiment of large-screen dust-extraction unit of the present invention
It is roughly the same with the third preferred embodiment to apply example, something in common no longer repeats in detail herein, the difference is that, large size screen
The shape of curtain 31 is spherical surface form.
Wherein, in formation spherical surface form on a pedestal, which can be set on the ground the large-screen 31, can also set
It is placed on ceiling, the large-screen 31 and pedestal throw the large-screen 31 around the negative pressure space 32, projection device is defined
Shadow, so that spectators may be viewed by sphere picture.
The vibration generation device 41 is stereo set, is set in the negative pressure space 32, can make this when playing sound
Large-screen 31 generates vibration, the static eraser 61 can be set on the outside of the large-screen 31, so that dust A is easier
It is shaken from the large-screen 31, which aspirates the air of the negative pressure space 32, so that dust A is by air-flow band
It is dynamic, entered the negative pressure space 32 by several holes 311 and is discharged.
As shown in fig.7, including a static elimination step 901, a vibration for a kind of large-screen dust removal method of the present invention
Step 902, and one takes away step 903.
The static elimination step 901 is first carried out, which issues the large-screen 31 and neutralizes ion,
To eliminate the large-screen 31 and be attached to the large-screen 31 dust A electrostatic, when actual implementation, can be not required to carry out
The static elimination step 901, directly carries out the vibration step 902 and this takes away step 903.
Then the vibration step 902 is executed, which makes the large-screen 31 generate vibration, so that the ash
Dirt A shakes from the large-screen 31.
Wherein, which can make the large-screen 31 generate vibration with the mode of percussion, can also make
So that the large-screen 31 is generated vibration with the mode of sound wave, dust A is shaken from the large-screen 31, it, can when actual implementation
In a manner of using percussion and sound wave simultaneously, the large-screen 31 is made to generate vibration.
It finally executes this and takes away step 903, the air flow-producing device 51 is in generating air-flow in the large-screen 31, to take away
By shake from the large-screen 31 dust A.
Wherein, which is to make to generate air-flow in the large-screen 31 in a manner of aspirating air, practical
When implementation, the mode of blowout also can be used, air is blown toward the large-screen 31, makes to generate air-flow in the large-screen 31,
It should not be as limit.
It is noted that the vibration generation device 41, the air flow-producing device 51 and the static eraser 61 will not
The projected picture for influencing projection device, the dedusting operation of the large-screen 31 can be carried out while playing film, does not need to stop
It only plays film or builds scaffold or carry out the cleaning of screen using aerial ladder equipment, when effectively promoting the operation of projection device
Between, and save clean expense.
As shown in the above description, large-screen dust-extraction unit of the present invention and its method have effects that following really:
One, dust is removed:
The static eraser 61 can eliminate the large-screen 31 and be attached to the electrostatic of the dust A of the large-screen 31, should
Vibration generation device 41 can make the large-screen 31 generate vibration, which can make in the large-screen 31
Air-flow is generated, to take away the dust A de- by shake, effectively removes the dust A of the large-screen 31.
Two, projection and dedusting simultaneously:
The vibration generation device 41, the air flow-producing device 51 and the static eraser 61 will not influence the throwing of projection device
Shadow picture can carry out the dedusting operation of the large-screen 31 while playing film.
Three, the screen of cleanable any shape:
The vibration generation device 41 can directly or indirectly shake the large-screen 31, which aspirates air and generate
Air-flow, the static eraser 61 can eliminate electrostatic in a distant place, be suitable for plane configuration, curved-surface shape, hemisphere face form, spherical surface
The large-screen 31 of form, is not influenced by the shape of the large-screen 31.
In conclusion the present invention eliminates the large-screen 31 using the static eraser 61 and is attached to the large-screen
The electrostatic of 31 dust A makes the large-screen 31 generate vibration, utilizes the air flow-producing device using the vibration generation device 41
51 take away the dust A de- by shake, effectively remove the dust A of the large-screen 31, therefore can reach the purpose of the present invention really.
The above, four preferred embodiments only of the invention, when the model implemented of the present invention cannot be limited with this
It encloses, i.e., all still belongs to according to simple equivalent changes and modifications made by scope of the present invention patent and invention description content generally
In the range of the invention patent covers.
Claims (10)
1. a kind of large-screen dust-extraction unit is applied to a screen unit, the screen unit includes a large-screen, described big
Type screen adheres to an at least dust；It is characterized by comprising:
One vibration unit, the vibration unit make the dust to shake the large-screen including a vibration generation device
It shakes from the large-screen；And
One air flow unit, the air flow unit include an air flow-producing device, to incite somebody to action in generating air-flow in the large-screen
The dust takes away the large-screen.
2. large-screen dust-extraction unit according to claim 1, which is characterized in that also include a static elimination unit, institute
Stating static elimination unit includes a static eraser, to eliminate the electrostatic of the dust.
3. large-screen dust-extraction unit according to claim 1, which is characterized in that wherein, the vibration generation device is
The large-screen is tapped to generate the percussion component of vibration.
4. large-screen dust-extraction unit according to claim 1, which is characterized in that wherein, the vibration generation device is
Sound wave generates component, generates sound wave to air so that the large-screen generates vibration.
5. large-screen dust-extraction unit according to claim 1, which is characterized in that wherein, the shape of the large-screen
For one of plane configuration, curved-surface shape, hemisphere face form, spherical surface form.
6. large-screen dust-extraction unit according to claim 1, which is characterized in that wherein, the air flow-producing device is
Exhaust equipment makes to generate air-flow in the large-screen to aspirate the air in the large-screen.
7. large-screen dust-extraction unit according to claim 1, which is characterized in that wherein, the screen unit further includes
One negative pressure space connecting with the large-screen, the large-screen are equipped with several holes, and the air flow-producing device is
Exhaust equipment makes several holes of the large-screen generate air-flow to aspirate the air of the negative pressure space.
8. large-screen dust-extraction unit according to claim 1, which is characterized in that wherein, the screen unit further includes
One supporting member connecting with the large-screen, the vibration generation device is set on the supporting member, and taps institute
Supporting member is stated, the strength that the supporting member will hit against is conducted to the large-screen, so that the large-screen generates shake
It is dynamic.
9. a kind of large-screen dust removal method, which is characterized in that comprise the steps of
One shakes step, and an at least dust is adhered in a large-screen, and a vibration generation device makes the large-screen generate shake
It is dynamic, so that the dust shakes from the large-screen；And
One takes away step, an air flow-producing device in generating air-flow in the large-screen, with take away by shake from the large size
The dust of screen.
10. large-screen dust removal method according to claim 9, which is characterized in that further include before the vibration step
One static elimination step, a static eraser issue the large-screen and neutralize ion, to eliminate be attached to it is described big
The electrostatic of the dust of type screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710986032.7A CN109692851A (en) | 2017-10-20 | 2017-10-20 | Large-screen dust-extraction unit and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710986032.7A CN109692851A (en) | 2017-10-20 | 2017-10-20 | Large-screen dust-extraction unit and its method |
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| Publication Number | Publication Date |
|---|---|
| CN109692851A true CN109692851A (en) | 2019-04-30 |
Family
ID=66226429
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710986032.7A Pending CN109692851A (en) | 2017-10-20 | 2017-10-20 | Large-screen dust-extraction unit and its method |
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| CN (1) | CN109692851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838681A (en) * | 2019-11-01 | 2020-02-25 | 广东电网有限责任公司 | High-efficient type switch board dispels heat |
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Application publication date: 20190430 |
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| WD01 | Invention patent application deemed withdrawn after publication |