CN110593746A - Can carry out filterable antifog haze window many times to haze - Google Patents
Can carry out filterable antifog haze window many times to haze Download PDFInfo
- Publication number
- CN110593746A CN110593746A CN201910804020.7A CN201910804020A CN110593746A CN 110593746 A CN110593746 A CN 110593746A CN 201910804020 A CN201910804020 A CN 201910804020A CN 110593746 A CN110593746 A CN 110593746A
- Authority
- CN
- China
- Prior art keywords
- haze
- frame
- fixedly connected
- filter
- wall
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Architecture (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an anti-haze window capable of filtering haze for multiple times, which comprises a window frame, a filter plate, a first glass fixing frame and a second glass fixing frame, wherein the top and the bottom of the right side of the inner wall of the window frame are fixedly connected with first slide rails, and the top and the bottom of the inner wall of the window frame and the left side of the first slide rails are fixedly connected with second slide rails. This can carry out filterable antifog haze window many times to haze, through the net frame of left side fixedly connected with between window frame inner wall top and the bottom, the right side fixedly connected with of fixed plate filters the frame, be provided with multiple-layer filtering structure in this antifog haze window, can filter the haze more thoroughly, prevent that the haze effect is better, and filter frame convenient to detach, conveniently wash, press down the clamp plate and make the cardboard break away from the mounting groove in, can with the filter with cross the filter bag dismantlement, moreover, the steam generator is simple in structure, be convenient for change and wash the filter frame, the practicality is improved.
Description
Technical Field
The invention relates to the technical field of haze-proof windows, in particular to a haze-proof window capable of filtering haze for multiple times.
Background
The fog and haze combined word is that the fog and haze are commonly found in cities, the fog and haze are the interaction result of specific weather conditions and human activities, economic and social activities of high-density population inevitably discharge a large amount of fine particulate matters (PM2.5), once the emission exceeds the atmospheric circulation capacity and the bearing capacity, the concentration of the fine particulate matters is continuously accumulated, at the moment, if the fog and haze are influenced by static weather and the like, a large-range fog and haze are easily generated, the fog and haze mainly comprise three items of sulfur dioxide, nitric oxide and inhalable particulate matters, the three items are combined with the fog and cause the instantaneous sky to become cloudy, dull, the window of a modern window comprises three parts of a window frame, glass and movable components (hinges, handles, pulleys and the like), the window frame is responsible for supporting the main structure of the window body and can be wood, metal, ceramic or plastic materials, the transparent part is attached to the window frame and can be paper, cloth, paper, Silk or glass material, the movable component is mainly metal material, may wrap up the heat insulating material such as plastics in the place that people's hand touches, the window is the important component of the building model (the contrast of reality and deficiency, rhythm artistic effect, play an important role), so its shape, size, proportion, arrangement, color and model, etc. all need very big influence to the whole model of the building, modern many people all install the window of the double glazing, except can strengthen the thermal insulation effect, very important role is to insulate against sound, the city is flourishing, the living is dense, the traffic is developed, the window with good sound insulation effect is receiving more and more favoured by people.
The window that different positions environment used has different designing requirements, will have functions such as heat preservation, thermal-insulated, sound insulation, waterproof and fire prevention respectively, and current antifog haze window general intelligence carries out the single to the haze granule and filters, and antifog haze effect is relatively poor, and current antifog haze window structure is comparatively complicated, and inside filter core is not convenient for change, and the filter core is blockked up by the dust after using for a long time, leads to the gas circulation not smooth, is unfavorable for indoor taking a breath, has reduced the practicality.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the haze preventing window capable of filtering haze for multiple times, and solves the problems that the haze preventing effect is poor due to single filtering, a filter element is inconvenient to replace, and the practicability is low.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a can carry out filterable antifog haze window many times to haze, includes the fixed frame of window frame, filter, the fixed frame of first glass and second glass, the first slide rail of the equal fixedly connected with in top and the bottom on window frame inner wall right side, the top and the bottom of window frame inner wall just are located the equal fixedly connected with second slide rail in left side of first slide rail, left side fixedly connected with net frame between window frame inner wall top and the bottom, bolt fixedly connected with fixed plate is passed through in the left side of net frame to the right side fixedly connected with of fixed plate filters the frame, the right side of filtering the frame runs through the net frame and extends to the inside of net frame, right side swing joint between the top of net frame inner wall and the bottom has the filter core, swing joint has the grid plate between the top of net frame inner wall and the bottom and be located between the one side that.
Preferably, the left side of the fixed plate is provided with a rectangular through groove matched with the filter plate, the bottom of the filter plate is fixedly connected with a mounting plate, and the bottom of the inner wall of the rectangular through groove is provided with a fixing groove matched with the mounting plate.
Preferably, the top fixedly connected with rectangular plate of filter, the filter is crossed the filter bag with the equal fixedly connected with in right side of rectangular plate, the right side of crossing the filter bag runs through the filter frame and extends to the inside of filtering the frame.
Preferably, a first movable groove is formed in the fixed plate, a mounting groove communicated with the first movable groove is formed in the top of the inner wall of the rectangular through groove, first limiting slide rails are fixedly connected to two sides of the inner wall of the first movable groove, and a first movable plate is slidably connected between one opposite sides of the first limiting slide rails.
Preferably, the top of the first movable plate is fixedly connected with a pressing plate, the top of the pressing plate penetrates through the first movable groove and the fixed plate and extends to the outside of the fixed plate, the bottom of the first movable plate is fixedly connected with a movable rod, and the bottom end of the movable rod penetrates through the first movable groove and the mounting groove and extends to the inside of the mounting groove.
Preferably, the bottom of the first movable plate and the surface of the movable rod are fixedly connected with a first spring, and the bottom end of the first spring is fixedly connected with the bottom of the inner wall of the first movable groove.
Preferably, a second movable groove is formed in the rectangular plate, a second limiting slide rail is fixedly connected between two sides of the inner wall of the second movable groove, and a second movable plate is connected between two opposite sides of the second limiting slide rail in a sliding manner.
Preferably, the bottom of the second movable plate is fixedly connected with a second spring, the bottom end of the second spring is fixedly connected with the bottom of the inner wall of the second movable groove, the top of the second movable plate is fixedly connected with a clamping plate, and the top of the clamping plate penetrates through the rectangular plate and the mounting groove and extends into the mounting groove.
Preferably, the top and the bottom of the first glass fixing frame are respectively in sliding connection with one side opposite to the two first sliding rails, and the top and the bottom of the second glass fixing frame are respectively in sliding connection with one side opposite to the two second sliding rails.
Advantageous effects
The invention provides an anti-haze window capable of filtering haze for multiple times. Compared with the prior art, the method has the following beneficial effects:
(1) the anti-haze window capable of filtering haze for multiple times is characterized in that the left side between the top and the bottom of the inner wall of the window frame is fixedly connected with the grid frame, the left side of the grid frame is fixedly connected with the fixing plate through bolts, the right side of the fixed plate is fixedly connected with a filter frame, the right side of the filter frame penetrates through the grid frame and extends to the inside of the grid frame, the right side between the top and the bottom of the inner wall of the grid frame is movably connected with a filter element, a grid plate is movably connected between the top and the bottom of the inner wall of the grid frame and positioned on one side of the filter frame opposite to the filter element, filter bags are fixedly connected with the right sides of the filter plate and the rectangular plate, the right sides of the filter bags penetrate through the filter frame and extend to the inside of the filter frame, be provided with multilayer filtration in this antifog haze window, can filter the haze more thoroughly, prevent that the haze effect is better, and filter frame convenient to detach, conveniently wash.
(2) This can carry out filterable antifog haze window many times to haze, first activity groove has been seted up through the inside of fixed plate, the mounting groove that communicates mutually with first activity groove is seted up at the top that the groove inner wall is led to the rectangle, the first spacing slide rail of the equal fixedly connected with in both sides of first activity groove inner wall, sliding connection has first fly leaf between the relative one side of two first spacing slide rails, the top fixedly connected with of first fly leaf presses the clamp plate, the second activity groove has been seted up to the inside of rectangular plate, press down and make the cardboard break away from the mounting groove according to the clamp plate, can dismantle the filter with crossing the filter bag, moreover, the steam generator is simple in structure, and convenient for operation, be convenient for change washs.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a perspective view of the filter frame structure of the present invention;
FIG. 4 is a perspective view of the filter plate structure of the present invention;
fig. 5 is an assembly view of the rectangular plate and the fixing plate structure of the present invention.
FIG. 6 is a top view of the filter bag construction of the present invention.
In the figure: 1 window frame, 2 filter plates, 3 fixed frame of first glass, the fixed frame of 4 second glass, 5 first slide rail, 6 second slide rail, 7 net frame, 8 bolts, 9 fixed plates, 10 filter frame, 11 filter cores, 12 net board, 13 rectangle through grooves, 14 mounting panels, 15 fixed slots, 16 rectangular plate, 17 filter bag, 18 first movable grooves, 19 mounting grooves, 20 first spacing slide rails, 21 first fly leaf, 22 pressing plate, 23 movable rods, 24 first spring, 25 second movable grooves, 26 second spacing slide rails, 27 second fly leaf, 28 second spring, 29 cardboard.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: an anti-haze window capable of filtering haze for multiple times comprises a window frame 1, a filter plate 2, a first glass fixing frame 3 and a second glass fixing frame 4, wherein a handle is fixedly connected to one side of the front surface of the first glass fixing frame 3, the first glass fixing frame 3 is convenient to slide, the window is opened, the top and the bottom of the first glass fixing frame 3 are respectively in sliding connection with one side of two first sliding rails 5, the top and the bottom of the second glass fixing frame 4 are respectively in sliding connection with one side of two second sliding rails 6, the top of the filter plate 2 is fixedly connected with a rectangular plate 16, a second movable groove 25 is formed in the rectangular plate 16, a second limiting sliding rail 26 is fixedly connected between two sides of the inner wall of the second movable groove 25, the second limiting sliding rail 26 plays a limiting role in limiting a second limiting plate 27 and prevents the second limiting plate 27 from shifting, a second movable plate 27 is slidably connected between one side of the two second limiting sliding rails 26, the bottom of the second movable plate 27 is fixedly connected with a second spring 28, the bottom end of the second spring 28 is fixedly connected with the bottom of the inner wall of the second movable groove 25, the top of the second movable plate 27 is fixedly connected with a clamping plate 29, the top of the clamping plate 29 penetrates through the rectangular plate 16 and the mounting groove 19 and extends into the mounting groove 19, the filter bag 17 is fixedly connected with the right sides of the filter plate 2 and the rectangular plate 16, as shown in fig. 6, the filter bag is fixed on the right side of a rectangular frame, the rectangular frame is fixedly connected with the right side of the rectangular plate 16 through an L-shaped sliding plate, so that the filter bag 17 can be taken down from the rectangular plate 16 and the filter plate 2, the interior of the filter bag 17 is convenient to clean, the right side of the filter bag 17 penetrates through the filter frame 10 and extends into the filter frame 10, the top and the bottom of the right side of the inner wall of the window frame are fixedly connected with a first slide, the left side between the top and the bottom of the inner wall of the window frame 1 is fixedly connected with a grid frame 7, the left side of the grid frame 7 is fixedly connected with a fixed plate 9 through a bolt 8, a first movable groove 18 is arranged inside the fixed plate 9, the top of the inner wall of the rectangular through groove 13 is provided with a mounting groove 19 communicated with the first movable groove 18, both sides of the inner wall of the first movable groove 18 are fixedly connected with first limiting slide rails 20, the first limiting slide rails 20 limit the first movable plate 21 to prevent the first movable plate 21 from deviating, a first movable plate 21 is slidably connected between the opposite sides of the two first limiting slide rails 20, the bottom of the first movable plate 21 and the surface of a movable rod 23 are fixedly connected with a first spring 24, the bottom end of the first spring 24 is fixedly connected with the bottom of the inner wall of the first movable groove 18, the top of the first movable plate 21 is fixedly connected with a pressing plate 22, and the height of the pressing plate, prevent to press in the clamp plate 22 to retract in the first activity groove 18 completely, press the top of clamp plate 22 to run through first activity groove 18 and fixed plate 9 and extend to the outside of fixed plate 9, the bottom fixedly connected with movable rod 23 of first activity plate 21, the bottom of movable rod 23 runs through first activity groove 18 and mounting groove 19 and extends to the inside of mounting groove 19, the left side of fixed plate 9 is seted up the rectangle through groove 13 with filter 2 looks adaptation, the bottom fixedly connected with mounting panel 14 of filter 2, and the bottom of the rectangle through groove 13 inner wall is seted up the fixed slot 15 with mounting panel 14 looks adaptation, and the right side fixedly connected with filter frame 10 of fixed plate 9, the right side of filter frame 10 runs through net frame 7 and extends to the inside of net frame 7, the right side swing joint between the top of net frame 7 inner wall and the bottom has filter core 11, filter core 11 material is softer, make it take out from net frame 7 smoothly, a grid plate 12 is movably connected between the top and the bottom of the inner wall of the grid frame 7 and the side of the filter frame 10 opposite to the filter element 11, the grid plate 12 is made of soft materials, and can be smoothly taken out of the grid frame 7 after being bent.
During the use, outside air carries out the first filtration through filter 2, carry out the second filtration through crossing filter bag 17, get into net frame 7, carry out the second filtration through net board 12 and filter core 11, multiple filtration, can strengthen and prevent the haze effect, need wash when crossing filter bag 17, press down pressing plate 22 to make first fly leaf 21 take place to move, drive movable rod 23 and take place the motion, reason mounting groove 19 with cardboard 29, first spring is compressed this moment, cardboard 29 breaks away from the in-process of mounting groove 19, second fly leaf 27 takes place the motion, second spring 28 is compressed, cardboard 29 breaks away from behind mounting groove 19, can dismantle filter 2, can wash crossing filter bag 17, can take out net board 12 simultaneously, and change filter core 11.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (9)
1. The utility model provides a can carry out filterable antifog haze window many times to haze, includes window frame (1), filter (2), the fixed frame of first glass (3) and the fixed frame of second glass (4), the top on window frame inner wall right side and the first slide rail of the equal fixedly connected with in bottom (5), the top of window frame (1) inner wall and the equal fixedly connected with second slide rail (6) in left side that the bottom just is located first slide rail (5), its characterized in that: left side fixedly connected with net frame (7) between window frame (1) inner wall top and the bottom, bolt (8) fixedly connected with fixed plate (9) are passed through in the left side of net frame (7) to the right side fixedly connected with of fixed plate (9) filters frame (10), the right side of filtering frame (10) runs through net frame (7) and extends to the inside of net frame (7), right side swing joint between the top of net frame (7) inner wall and the bottom has filter core (11), swing joint has net board (12) between the top of net frame (7) inner wall and the bottom and be located between the one side that filters frame (10) and filter core (11) are relative.
2. The haze preventing window capable of filtering haze for multiple times according to claim 1, wherein: the rectangle that passes through groove (13) with filter (2) looks adaptation is seted up in the left side of fixed plate (9), the bottom fixedly connected with mounting panel (14) of filter (2) to fixed slot (15) with mounting panel (14) looks adaptation are seted up to the bottom that the groove (13) inner wall is led to the rectangle.
3. The haze preventing window capable of filtering haze for multiple times according to claim 1, wherein: the top fixedly connected with rectangular plate (16) of filter (2), filter bag (17) is crossed with the equal fixedly connected with in right side of rectangular plate (16) in filter (2), the right side of crossing filter bag (17) runs through filter frame (10) and extends to the inside of filtering frame (10).
4. The haze preventing window capable of filtering haze for multiple times according to claim 3, wherein: first activity groove (18) have been seted up to the inside of fixed plate (9) to mounting groove (19) that are linked together with first activity groove (18) are seted up at the top of rectangle logical groove (13) inner wall, the equal fixedly connected with first spacing slide rail (20) in both sides of first activity groove (18) inner wall, two sliding connection has first fly leaf (21) between the relative one side of first spacing slide rail (20).
5. The haze preventing window capable of filtering haze for multiple times according to claim 4, wherein: the top fixedly connected with of first fly leaf (21) presses board (22), the top of pressing board (22) runs through first activity groove (18) and fixed plate (9) and extends to the outside of fixed plate (9), the bottom fixedly connected with movable rod (23) of first fly leaf (21), the bottom of movable rod (23) runs through first activity groove (18) and mounting groove (19) and extends to the inside of mounting groove (19).
6. The haze preventing window according to claim 5, wherein the haze preventing window is characterized in that: the bottom of the first movable plate (21) is fixedly connected with a first spring (24) on the surface of the movable rod (23), and the bottom end of the first spring (24) is fixedly connected with the bottom of the inner wall of the first movable groove (18).
7. The haze preventing window capable of filtering haze for multiple times according to claim 3, wherein: a second movable groove (25) is formed in the rectangular plate (16), a second limiting slide rail (26) is fixedly connected between two sides of the inner wall of the second movable groove (25), and a second movable plate (27) is connected between two opposite sides of the second limiting slide rail (26) in a sliding mode.
8. The haze preventing window according to claim 7, wherein the haze preventing window is characterized in that: the bottom of the second movable plate (27) is fixedly connected with a second spring (28), the bottom end of the second spring (28) is fixedly connected with the bottom of the inner wall of the second movable groove (25), the top of the second movable plate (27) is fixedly connected with a clamping plate (29), and the top of the clamping plate (29) penetrates through the rectangular plate (16) and the mounting groove (19) and extends to the inside of the mounting groove (19).
9. The haze preventing window capable of filtering haze for multiple times according to claim 1, wherein: the top and the bottom of the first glass fixing frame (3) are respectively in sliding connection with one side opposite to the two first sliding rails (5), and the top and the bottom of the second glass fixing frame (4) are respectively in sliding connection with one side opposite to the two second sliding rails (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804020.7A CN110593746A (en) | 2019-08-28 | 2019-08-28 | Can carry out filterable antifog haze window many times to haze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804020.7A CN110593746A (en) | 2019-08-28 | 2019-08-28 | Can carry out filterable antifog haze window many times to haze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110593746A true CN110593746A (en) | 2019-12-20 |
Family
ID=68856091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910804020.7A Pending CN110593746A (en) | 2019-08-28 | 2019-08-28 | Can carry out filterable antifog haze window many times to haze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110593746A (en) |
Citations (6)
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|---|---|---|---|---|
| KR20120006029U (en) * | 2011-02-18 | 2012-08-28 | 박현수 | Screen attaching and detaching blocking member |
| CN104018769A (en) * | 2014-04-28 | 2014-09-03 | 李嘉斌 | Integrally dismountable window protective guard |
| CN204782567U (en) * | 2015-05-18 | 2015-11-18 | 时贞训 | Prevent haze austral window, sliding sash |
| CN106121471A (en) * | 2016-08-23 | 2016-11-16 | 天津天美环保科技有限公司 | A kind of clearing window of band air paper |
| US20170128869A1 (en) * | 2011-08-09 | 2017-05-11 | The Newway Company, Inc. | Assembly, kit and method for securing a covering to an air intake including connecting inserts |
| CN108905406A (en) * | 2018-09-21 | 2018-11-30 | 南通朝旭环保科技有限公司 | A kind of waterproof window air filter |
-
2019
- 2019-08-28 CN CN201910804020.7A patent/CN110593746A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120006029U (en) * | 2011-02-18 | 2012-08-28 | 박현수 | Screen attaching and detaching blocking member |
| US20170128869A1 (en) * | 2011-08-09 | 2017-05-11 | The Newway Company, Inc. | Assembly, kit and method for securing a covering to an air intake including connecting inserts |
| CN104018769A (en) * | 2014-04-28 | 2014-09-03 | 李嘉斌 | Integrally dismountable window protective guard |
| CN204782567U (en) * | 2015-05-18 | 2015-11-18 | 时贞训 | Prevent haze austral window, sliding sash |
| CN106121471A (en) * | 2016-08-23 | 2016-11-16 | 天津天美环保科技有限公司 | A kind of clearing window of band air paper |
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Effective date of abandoning: 20211217 |
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