Nano formaldehyde-removing door and window system convenient for cleaning coating

Abstract

The invention discloses a nanometer formaldehyde-removing door and window system convenient for cleaning a coating, and relates to the technical field of formaldehyde-removing doors and windows, the nanometer formaldehyde-removing door and window system comprises a window frame, a window sash and glass, and further comprises a nanometer composite coating arranged on the surface of the side, close to the interior of a room, of the glass; the moving frame is arranged on one side of the nano-composite coating, and a cleaning cotton belt attached to the surface of the nano-composite coating is arranged in the moving frame; the driving mechanism is arranged on the outer wall of the window sash; the nano-composite coating of a multi-layer structure is utilized, the adhesive force and photocatalytic activity are enhanced, formaldehyde is catalytically decomposed under the condition of no light or insufficient light, the abrasion resistance of the nano-composite coating can be improved, and the light transmittance is kept; and meanwhile, dust on the surface of the nano-composite coating is automatically cleaned when the window is opened and closed, so that the dust is prevented from forming a physical barrier on the surface of the coating to reduce the purification efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of formaldehyde-removing doors and windows, in particular to a nano formaldehyde-removing door and window system with a convenient-to-clean coating. BACKGROUND

[0002] Formaldehyde-removing doors and windows refer to door and window products that can actively or passively degrade, adsorb and decompose indoor formaldehyde during daily use, thereby improving indoor air quality. Commonly used is the photocatalytic decomposition method, which adds titanium dioxide and other photocatalysts to the screen window, glass or coating to decompose formaldehyde into carbon dioxide and water using light to produce active oxygen and free radicals. Existing system door and window glass mainly has the functions of transparency, heat insulation and sound insulation, and some products attempt to add formaldehyde-removing coatings.

[0003] In the prior art, although the formaldehyde-removing coating on the surface of the glass can effectively remove formaldehyde, there are still the following problems: Traditional coatings (such as photocatalysts) rely on ultraviolet light to activate, and the effect is greatly reduced when there is insufficient indoor light. The coating has poor durability and is easily worn by friction or cleaning, resulting in a decrease in formaldehyde removal efficiency. In daily life, dust will adhere to the surface of the window glass as the use time increases, and the glass needs to be cleaned regularly. The dust forms a physical barrier on the surface of the coating, preventing volatile organic compounds such as formaldehyde from directly contacting the active sites of the catalyst, resulting in a decrease in purification efficiency.

[0004] In view of the above problems, it is urgent to make innovative designs on the basis of the existing formaldehyde-removing doors and windows. SUMMARY

[0005] The technical solution of the present application provides a solution significantly different from the prior art to solve the problem of low formaldehyde removal efficiency when there is insufficient indoor light and the physical barrier formed by dust on the surface of the coating leading to a decrease in purification efficiency. Specifically, the purpose of the present application is to provide a nano formaldehyde-removing door and window system with a convenient-to-clean coating to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a nano formaldehyde-removing door and window system with a convenient-to-clean coating, comprising a window frame, a window sash and glass, further comprising: A nano composite coating is arranged on the surface of the glass near the indoor side to catalytically decompose formaldehyde when there is insufficient indoor light; A moving frame is arranged on one side of the nano composite coating, and the moving frame is internally provided with a cleaning cotton belt that is attached to the surface of the nano composite coating; A driving mechanism is arranged on the outer wall of the window sash to drive the moving frame to reciprocally move on the surface of the nano composite coating when the window is opened or closed; The cleaning mechanism located at the lower end of the moving frame is used to wipe the dust on the surface of the nanocomposite coating in one direction with a cleaning cotton strip when the window is opened and closed, and to clean and collect the dust on the surface of the cleaning cotton strip.

[0007] Preferably, the nanocomposite coating consists of three layers, arranged sequentially from the glass surface toward the interior as a composite substrate, a metal particle layer, and a wear-resistant film.

[0008] Preferably, the driving mechanism includes a first fixing plate fixed to the side of the window sash facing the interior and exterior walls, and two sets of second fixing plates fixed to the other side of the window sash facing the interior and exterior walls. A sliding rod is fixed between the first fixing plate and the two sets of second fixing plates. The outer wall of each sliding rod is provided with a sliding plate that slides with it. One end of each of the two sets of sliding plates is fixed to both ends of the moving frame. A return spring sleeved on the outer wall of the sliding rod is connected between the sliding plate and the first fixing plate.

[0009] Preferably, the drive mechanism further includes two sets of guide rings that are longitudinally and symmetrically fixed on the other side of the window sash facing the interior and exterior walls. The outer walls of the two sets of slides are respectively connected to traction ropes that pass through the two sets of guide rings, and the other end of the traction ropes is fixed to the inner wall of the window frame.

[0010] Preferably, the outer wall of the movable frame has an opening on the outside of the cleaning cotton strip, and the inner wall of the movable frame has two sets of drive shafts, with the cleaning cotton strip sleeved on the outside of the two sets of drive shafts.

[0011] Preferably, the cleaning mechanism includes support plates symmetrically fixed to the lower outer wall of the movable frame. Each support plate is rotatably connected to a rotating shaft. Both ends of the transmission shaft located at the lower end of the movable frame are symmetrically fixed with first helical gears, and one end of each rotating shaft is fixed with a second helical gear meshing with the first helical gear.

[0012] Preferably, the cleaning mechanism further includes a toothed ring sleeved on the outer side of the other end of the rotating shaft, two sets of limiting discs located on both sides of the toothed ring are fixed to the outer wall of the other end of the rotating shaft, a ratchet mechanism is provided between the toothed ring and the rotating shaft, and a rack that meshes with the toothed ring is fixed to the outer wall of the window sash.

[0013] Preferably, a scraper with its end facing the surface of the cleaning cotton strip is fixed to the lower inner wall of the movable frame, and a detachable cover is provided on the lower outer wall of the movable frame below the scraper.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention features a multi-layered nanocomposite coating, consisting of a composite substrate, a metal particle layer, and a wear-resistant film arranged sequentially from the glass surface towards the interior. The composite substrate can be titanium dioxide or graphene to enhance adhesion and photocatalytic activity. The metal particle layer can be nano-silver or copper oxide to catalytically decompose formaldehyde under no-light or insufficient light conditions. The wear-resistant film can be siloxane to improve the wear resistance of the nanocomposite coating while maintaining light transmittance. This invention incorporates a driving mechanism and a cleaning mechanism. During the opening and closing of the window, the cleaning cotton strip continuously wipes the nanocomposite coating laterally. While wiping, the cleaning cotton strip carries the dust on the surface, which tends to move downwards. The surface of the cleaning cotton strip is then scraped off by a scraper to remove most of the dust. The dust eventually settles at the bottom of the moving frame, ensuring that the wiping surface of the cleaning cotton strip remains clean when cleaning the dust on the surface of the nanocomposite coating. This prevents dust from forming a physical barrier on the coating surface, which would reduce the purification efficiency. Attached Figure Description

[0015] Figure 1 This is a first-view perspective perspective view of the present invention; Figure 2 This is a second-view perspective perspective view of the present invention; Figure 3 This is a three-dimensional view of the glass and nanocomposite coating of the present invention. Figure 4 This is a perspective view of the window sash of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the image; Figure 6 For the present invention Figure 4 Enlarged view of point B in the image; Figure 7 This is a perspective view of the present invention when the movable frame is not moved; Figure 8 For the present invention Figure 7 Plan view after the central movable frame has been cut open; Figure 9 For the present invention Figure 8 Enlarged view of point C in the image; Figure 10 This is a cross-sectional plan view of the two sets of ratchet mechanisms of the present invention; Figure 11 This is a partial three-dimensional view of the cleaning mechanism of the present invention.

[0016] In the diagram: 1. Window frame; 2. Window sash; 3. Glass; 4. Nanocomposite coating; 5. First fixing plate; 6. Second fixing plate; 7. Slide rod; 8. Slide plate; 9. Return spring; 10. Moving frame; 11. Wire ring; 12. Traction rope; 13. Drive shaft; 14. Cleaning cotton strip; 15. Support plate; 16. Rotating shaft; 17. First helical gear; 18. Second helical gear; 19. Gear ring; 20. Limiting plate; 21. Ratchet mechanism; 22. Rack; 23. Scraper; 24. Cover. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 11 This invention provides a technical solution: a nano-formaldehyde removal door and window system with an easy-to-clean coating, comprising a window frame 1, a window sash 2, and glass 3, characterized in that it further comprises: The nanocomposite coating 4 applied to the surface of glass 3 near the interior can still catalyze the decomposition of formaldehyde when there is insufficient indoor light. A movable frame 10 is set on one side of the nanocomposite coating 4, and a cleaning cotton strip 14 that fits the surface of the nanocomposite coating 4 is set inside the movable frame 10. A drive mechanism is provided on the outer wall of the window sash 2 to drive the moving frame 10 to reciprocate on the surface of the nanocomposite coating 4 when the window is opened and closed. The cleaning mechanism located at the lower end of the movable frame 10 is used to wipe the dust on the surface of the nanocomposite coating 4 in one direction with the cleaning cotton strip 14 when the window is opened and closed, and to clean and collect the dust on the surface of the cleaning cotton strip 14.

[0019] In practice, the window sash 2 is connected to the window frame 1 by a friction hinge, which generates a certain resistance when the window sash 2 is opened, preventing the wind from suddenly blowing the window sash back.

[0020] The nanocomposite coating 4 consists of three layers, which are arranged sequentially from the surface of glass 3 toward the interior as a composite substrate, a metal particle layer, and a wear-resistant film.

[0021] In practice, the composite substrate can be titanium dioxide or graphene to enhance adhesion and photocatalytic activity. The metal particle layer can be nano-silver or copper oxide to catalyze the decomposition of formaldehyde under no light or insufficient light conditions. The wear-resistant film can be siloxane to improve the wear resistance of the nanocomposite coating 4 while maintaining light transmittance.

[0022] The driving mechanism includes a first fixing plate 5 fixed to the side of the window sash 2 facing the interior and exterior walls, and two sets of second fixing plates 6 fixed to the other side of the window sash 2 facing the interior and exterior walls. A slide rod 7 is fixed between the first fixing plate 5 and the two sets of second fixing plates 6. A sliding plate 8 is provided on the outer wall of the slide rod 7 to slide with it. One end of the two sets of sliding plates 8 is fixed to the two ends of the moving frame 10 respectively. A return spring 9 sleeved on the outer wall of the slide rod 7 is connected between the sliding plate 8 and the first fixing plate 5.

[0023] The drive mechanism also includes two sets of wire rings 11 that are longitudinally and symmetrically fixed on the other side of the window sash 2 facing the interior and exterior walls. The outer walls of the two sets of slide plates 8 are respectively connected to traction ropes 12 that pass through the two sets of wire rings 11. The other end of the traction rope 12 is fixed to the inner wall of the window frame 1.

[0024] The outer wall of the movable frame 10 has an opening on the outside of the cleaning cotton strip 14, and the inner wall of the movable frame 10 has two sets of drive shafts 13, with the cleaning cotton strip 14 sleeved on the outside of the two sets of drive shafts 13.

[0025] In specific implementation, the opening of the moving frame 10 faces the nanocomposite coating 4, which can make the interior of the moving frame 10 have a certain degree of sealing, so as to prevent the dust scraped off from being affected by air flow. The cleaning cotton belt 14 is taut on the outside of the two sets of drive shafts 13, so that the rotation of the lower drive shaft 13 can drive the cleaning cotton belt 14. The cleaning cotton belt 14 should be made of a relatively soft material to avoid large frictional resistance when the cleaning cotton belt 14 moves in contact with the nanocomposite coating 4.

[0026] The cleaning mechanism includes a support plate 15 symmetrically fixed to the lower outer wall of the movable frame 10. The support plate 15 is rotatably connected to a rotating shaft 16. The transmission shaft 13 located at the lower end of the movable frame 10 has a first helical gear 17 symmetrically fixed at both ends. A second helical gear 18 meshing with the first helical gear 17 is fixed at one end of the rotating shaft 16.

[0027] The cleaning mechanism also includes a toothed ring 19 sleeved on the outer side of the other end of the rotating shaft 16. Two sets of limiting discs 20 located on both sides of the toothed ring 19 are fixed on the outer wall of the other end of the rotating shaft 16. A ratchet mechanism 21 is provided between the toothed ring 19 and the rotating shaft 16. A rack 22 that meshes with the toothed ring 19 is fixed on the outer wall of the window sash 2.

[0028] In practice, the two sets of ratchet mechanisms 21 have opposite transmission directions, and the lower slide plate 8 has a notch on the outside of the rack 22 to prevent the slide plate 8 from being blocked by the rack 22 when it moves.

[0029] The lower inner wall of the movable frame 10 is fixed with a scraper 23 whose end faces the surface of the cleaning cotton strip 14, and the lower outer wall of the movable frame 10 is provided with a detachable cover 24 below the scraper 23.

[0030] In practice, the end of the scraper 23 is attached to the surface of the cleaning cotton strip 14, which helps to scrape off most of the dust from wiping. The cover 24 is a conventional existing technology.

[0031] Working principle: First, in daily life, even after six months of living in a newly renovated home, the building materials will continue to release small amounts of formaldehyde. During the day, windows are opened for ventilation, and at night when resting, they are closed. Figures 1 to 10 The diagram shows the state when the window is not open. When the window sash 2 is opened, it will be pushed to the outside, and the window sash 2 will rotate and open. When the window sash 2 is open, one end of the traction rope 12 is fixed to the window frame 1, and the other end is fixed to the slide plate 8. Under the limiting effect of the guide ring 11 on the traction rope 12, one end of the traction rope 12 pulls the slide plate 8. The slide plate 8 slides on the outer wall of the slide rod 7 and pulls the return spring 9, so that the slide plate 8 drives the moving frame 10 to move from one side of the glass 3 surface to the other side. The nano-composite coating 4 on the surface of the glass 3 can be wiped horizontally through the cleaning cotton strip 14 inside the moving frame 10.

[0032] Then, as Figure 11 As shown, during the opening of window sash 2, the gears 19 on both sides mesh with the rack 22 and rotate clockwise during lateral movement. Figure 10 From a planar perspective, the right gear 19 drives the inner shaft 16 to rotate clockwise, while the left gear 19 idles outside the shaft 16. The right shaft 16 drives the second bevel gear 18 at one end to rotate clockwise, which in turn drives the first bevel gear 17 to rotate counterclockwise. The first bevel gear 17 then drives the transmission shaft 13 to rotate counterclockwise, which in turn drives the cleaning cotton belt 14 to rotate counterclockwise. This causes the cleaning cotton belt 14 to wipe the nanocomposite coating 4 laterally while simultaneously causing the dust on the surface to move downwards. At this time, the transmission shaft 13 also drives the first bevel gear 17 on the left to rotate counterclockwise, which in turn drives the second bevel gear 18 to rotate clockwise. Figure 10From the perspective of the ratchet mechanism 21 on the left, the second bevel gear 18 will drive the rotating shaft 16 to rotate counterclockwise in the gear ring 19. Conversely, when the window is closed, the reset spring 9 will pull the slide plate 8 to move the moving frame 10 to reset. Since the nano-composite coating 4 on the surface of the glass 3 will come into contact with the outside air when the window is opened, dust will still adhere to it. The surface of the nano-composite coating 4 can be wiped by the cleaning cotton strip 14 moving horizontally when the moving frame 10 moves to reset. Similarly, the gear 19 on the right rotates counterclockwise, and the gear 19 on the left drives the rotating shaft 16 to rotate counterclockwise. The transmission shaft 13 will still drive the cleaning cotton strip 14 to drive counterclockwise. Thus, during the opening and closing of the window, the cleaning cotton strip 14 always wipes the nano-composite coating 4 horizontally while the dust wiped on the surface tends to move downward. The surface of the cleaning cotton strip 14 is scraped off by the scraper 13 to remove most of the dust. The dust will eventually be deposited at the bottom of the moving frame 10 and can be cleaned by opening the cover 24.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nano-formaldehyde removal door and window system with an easy-to-clean coating, comprising a window frame (1), a window sash (2), and glass (3), characterized in that, Also includes: A nanocomposite coating (4) is applied to the surface of the glass (3) near the interior side to catalyze the decomposition of formaldehyde even when there is insufficient indoor light. A movable frame (10) is provided on one side of the nanocomposite coating (4), and a cleaning cotton strip (14) that fits the surface of the nanocomposite coating (4) is provided inside the movable frame (10). A drive mechanism is provided on the outer wall of the window sash (2) to drive the moving frame (10) to reciprocate on the surface of the nanocomposite coating (4) when the window is opened and closed; The cleaning mechanism located at the lower end of the movable frame (10) is used to wipe the dust on the surface of the nanocomposite coating (4) in one direction with the cleaning cotton strip (14) when the window is opened and closed, and to clean and collect the dust on the surface of the cleaning cotton strip (14).

2. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 1, characterized in that: The nanocomposite coating (4) consists of three layers, arranged sequentially from the glass (3) surface toward the interior as a composite substrate, a metal particle layer, and a wear-resistant film.

3. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 1, characterized in that: The driving mechanism includes a first fixing plate (5) fixed on the side of the window sash (2) facing the interior and exterior walls, and two sets of second fixing plates (6) fixed on the other side of the window sash (2) facing the interior and exterior walls. A slide rod (7) is fixed between the first fixing plate (5) and the two sets of second fixing plates (6). The outer wall of the slide rod (7) is provided with a sliding plate (8) that slides with it. One end of the two sets of sliding plates (8) is fixed to both ends of the moving frame (10). A return spring (9) sleeved on the outer wall of the slide rod (7) is connected between the sliding plate (8) and the first fixing plate (5).

4. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 3, characterized in that: The drive mechanism also includes two sets of wire rings (11) that are longitudinally symmetrically fixed on the other side of the window sash (2) facing the interior and exterior walls. The outer walls of the two sets of sliding plates (8) are respectively connected to traction ropes (12) that pass through the two sets of wire rings (11). The other end of the traction ropes (12) is fixed to the inner wall of the window frame (1).

5. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 1, characterized in that: The outer wall of the movable frame (10) is provided with an opening on the outside of the cleaning cotton strip (14), and the inner wall of the movable frame (10) is provided with two sets of drive shafts (13), and the cleaning cotton strip (14) is sleeved on the outside of the two sets of drive shafts (13).

6. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 1, characterized in that: The cleaning mechanism includes a support plate (15) symmetrically fixed to the lower outer wall of the movable frame (10). The support plate (15) is rotatably connected to a rotating shaft (16). The transmission shaft (13) located at the lower end of the movable frame (10) is symmetrically fixed with two ends of a first helical gear (17). One end of the rotating shaft (16) is fixed with a second helical gear (18) meshing with the first helical gear (17).

7. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 6, characterized in that: The cleaning mechanism also includes a toothed ring (19) sleeved on the outer side of the other end of the rotating shaft (16). Two sets of limiting discs (20) located on both sides of the toothed ring (19) are fixed on the outer wall of the other end of the rotating shaft (16). A ratchet mechanism (21) is provided between the toothed ring (19) and the rotating shaft (16). A rack (22) that meshes with the toothed ring (19) is fixed on the outer wall of the window sash (2).

8. The nano-formaldehyde removal door and window system with an easy-to-clean coating according to claim 7, characterized in that: The lower inner wall of the movable frame (10) is fixed with a scraper (23) whose end faces the surface of the cleaning cotton strip (14), and the lower outer wall of the movable frame (10) is provided with a detachable cover (24) below the scraper (23).

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