Detachable and washable dustproof and ventilated door and window fence

Abstract

The utility model relates to the field of dustproof fence of door and window, especially a detachable and washable zoned dustproof ventilation door and window fence, including main frame and zoned filter screen module, the four corners of main frame are inlayed with magnetic attraction subassembly, zoned filter screen module is composed of high air permeability dust layer and auxiliary ventilation area, high air permeability dust layer covers more than 80% area of main frame, and auxiliary ventilation area is independently arranged on the top, zoned filter screen module is detachably connected with main frame through flexible clamping strip, the nanometer fiber (pore 5mu m) of the device can effectively intercept dust particles through electrostatic adsorption + inertial impact double effect synergy, can conveniently install and disassemble the device through magnetic attraction and flexible clamping strip installation, effectively reduces the dismounting time, and the operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of dustproof railings for doors and windows, and in particular to a detachable and washable partitioned dustproof and ventilated door and window railing. Background Technology

[0002] The current national standard GB / T 18883-2022 clearly requires that the PM2.5 concentration in indoor spaces must be ≤75μg / m³. 3 (Level 1 standard ≤35μg / m) 3 However, actual monitoring shows that the daily average dust concentration in residences without professional dust control facilities reaches 82 μg / m³. 3 (2024 Ministry of Housing and Urban-Rural Development Sampling Report of 10 Cities). Against this backdrop, door and window accessories that combine efficient dust prevention and ventilation functions have become a necessity in the market.

[0003] Existing door and window dustproof railings are mainly divided into three types: fixed screens, adhesive dustproof nets, and composite fresh air dustproof systems.

[0004] 1. Fixed window screens (mainstream market share > 70%)

[0005] Technical principle: Physical interception using metal / nylon mesh (aperture typically 0.6-1.2mm).

[0006] It has the following defects:

[0007] Dustproof failure: It can only block mosquitoes and particles larger than 100μm, with a PM2.5 interception rate of less than 25% (test report from the National Air Conditioning Equipment Quality Inspection Center).

[0008] Cleaning difficulties: Permanent installation leads to deep dust penetration, and the pore blockage rate is still >40% after cleaning. Figure 1 (Scanning electron microscope comparison).

[0009] Ventilation loss: The ventilation resistance of 40-mesh screen reaches 35 Pa·s / m, which increases energy consumption by 18% compared with bare windows (calculated by Tsinghua University Building Energy Conservation Center).

[0010] 2. Adhesive dustproof netting (low-cost solution)

[0011] Technological evolution: from the first generation of nonwoven fabrics to the current electrostatic adsorption filter cotton.

[0012] It has the following defects:

[0013] Lifespan defect: Electrostatic decay causes the PM2.5 interception rate to drop from the initial 90% to 30% in just 2 months (accelerated aging experiment at Guangdong Microbiology Analysis Center).

[0014] Secondary pollution: Adhesives continuously release TVOC (total volatile organic compounds), with formaldehyde release reaching 0.08 mg / m³. 3(Exceeding the national standard limit by 60%).

[0015] Ventilation contradiction: HEPA filter cotton with a thickness of >5mm reduces the ventilation cross-sectional area by >65%, increasing the risk of CO2 concentration exceeding the standard by 3 times.

[0016] 3. Composite Fresh Air and Dust Control System (High-end Market Solution)

[0017] Technical components: external fan + filter box + intelligent control system.

[0018] It has the following defects:

[0019] Economic barriers: Unit price > 2,000 yuan (10 times more expensive than basic window screens), annual maintenance cost exceeds 500 yuan.

[0020] Installation constraints: It requires damaging the window structure (drilling diameter ≥ 80mm), and 32% of users gave up on installation due to rental restrictions (AVC consumer survey).

[0021] Energy efficiency issue: The fan consumes 40W, resulting in an annual increase in electricity consumption of 120kW·h (measured by Shenzhen Academy of Building Research).

[0022] The existing technology mainly has the following problems: 1. Physical antagonism between dustproof performance and ventilation efficiency (determined by the basic principles of fluid mechanics); 2. Commercial logic break between long-term use and maintenance costs (manufacturers tend to plan scrapping); 3. Engineering conflict between installation suitability and building compatibility. Utility Model Content

[0023] In order to overcome the shortcomings of the existing technology, this utility model provides a detachable and washable partitioned dustproof and ventilation door and window railing, which achieves efficient dustproof ventilation through the synergistic effect of spatial functional separation and diversion and graded filtration mechanism.

[0024] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a detachable and washable partitioned dustproof and ventilated door and window railing, including a main frame and partitioned filter modules. Magnetic components are embedded in the four corners of the main frame. The partitioned filter modules consist of a highly breathable dustproof layer and an auxiliary ventilation area. The highly breathable dustproof layer covers more than 80% of the area of ​​the main frame, and the auxiliary ventilation area is independently located at the top. The partitioned filter modules are detachably connected to the main frame through flexible snap-fit ​​strips.

[0025] Furthermore, the highly breathable dustproof layer is a composite nanofiber filter membrane with a filtration pore size ≤5μm and is sealed with a silicone sealing strip at the edge.

[0026] Furthermore, the auxiliary ventilation area has a built-in louvered baffle, which can be adjusted from 0 to 90° by rotating a knob.

[0027] Furthermore, the silicone sealing strip is connected to the filter membrane using a hot-melt pressing process to form a filter material encapsulation structure that can be replaced without damage.

[0028] Furthermore, the blades of the louvered deflector are coated with a dust-repellent coating.

[0029] Furthermore, the magnetic attraction component includes a strong magnet and a soft magnetic compensation sheet, which is compatible with dual-mode attraction of ferrous / non-ferrous window frames.

[0030] Furthermore, the back of the main frame is provided with spare mounting holes for bolt fixing or nail-free adhesive installation.

[0031] Furthermore, the partitioned filter module is a rectangular split design, with the highly breathable dustproof layer and the auxiliary ventilation area joined together by a plug-in structure.

[0032] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0033] 1. The nanofibers (5μm pore size) in this device can effectively intercept dust particles through the synergistic effect of electrostatic adsorption and inertial impaction.

[0034] 2. The device can be easily installed and disassembled by magnetic attraction and flexible snap-fit ​​strips, effectively reducing the time required for installation and disassembly, and making operation simple. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the detachable and washable partitioned dustproof and ventilated door and window railing of this utility model;

[0036] Figure 2 This is a partial cross-sectional structural diagram of the detachable and washable partitioned dustproof and ventilated door and window railing of this utility model;

[0037] Figure 3 This is a three-dimensional structural diagram of the partition filter module of the detachable and washable partitioned dustproof and ventilated door and window railing of this utility model.

[0038] The components include: main frame 1; zoned filter module 2; high-permeability dustproof layer 21; auxiliary ventilation zone 22; louvered guide plate 23; flexible snap-fit ​​strip 3; and magnetic suction component 4. Detailed Implementation

[0039] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0040] Example:

[0041] Combination Figures 1-3 As shown, this utility model provides a detachable and washable partitioned dustproof and ventilated door and window frame, including a main frame 1 and a partitioned filter module 2. The main frame 1 is made of lightweight aluminum alloy profile, preferably 6063-T5 aluminum alloy profile, with a wall thickness of 1.5mm. Magnetic components 4 are embedded at the four corners of the main frame 1. The magnetic components 4 are N35 neodymium iron boron permanent magnets, and the magnet surface is covered with 0.5mm silicon steel compensation plates (to enhance the adsorption force on non-ferrous window frames). The magnetic components 4 can achieve seamless adsorption between the frame and the window. The partitioned filter module 2 consists of a high-permeability dustproof layer 21 and an auxiliary ventilation area 22. The high-permeability dustproof layer 21 covers more than 80% of the area of ​​the main frame, and the auxiliary ventilation area 22 is independently set at the top. The partitioned filter module is detachably connected to the main frame 1 through a flexible snap-fit ​​strip 3.

[0042] The highly breathable dustproof layer 21 is a composite nanofiber filter membrane with a filtration pore size of ≤5μm and is sealed with a silicone sealing strip at the edge.

[0043] The auxiliary ventilation zone 22 has a built-in louvered baffle 23, which can be adjusted from 0 to 90° by rotating a knob.

[0044] The silicone sealing strip is connected to the filter membrane using a hot-melt pressing process, forming a filter material encapsulation structure that can be replaced without damage.

[0045] The blades of the louvered deflector 23 are coated with a dust-repellent coating.

[0046] The magnetic component 4 includes a strong magnet and a soft magnetic compensation sheet, which can be used for dual-mode adsorption of ferrous / non-ferrous window frames.

[0047] The back of the main frame 1 has spare mounting holes for bolt fixing or nail-free adhesive installation.

[0048] The partitioned filter module has a rectangular split design. The high-permeability dustproof layer 21 and the auxiliary ventilation area 22 are joined together by a plug-in structure. The high-permeability dustproof layer 21 and the auxiliary ventilation area 22 prevent dust from being stirred up again during ventilation.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable and washable partitioned dustproof and ventilated door and window frame, comprising a main frame (1) and partitioned filter modules (2), characterized in that: The main frame (1) is fitted with magnetic components (4) at its four corners and a partitioned filter module (2), which consists of a highly breathable dustproof layer (21) and an auxiliary ventilation area (22). The highly breathable dustproof layer (21) covers more than 80% of the area of ​​the main frame, and the auxiliary ventilation area (22) is independently located at the top. The partitioned filter module is detachably connected to the main frame (1) by a flexible snap-fit ​​strip (3).

2. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 1, characterized in that: The highly breathable dustproof layer (21) is a composite nanofiber filter membrane with a filtration pore size ≤5μm and a silicone sealing strip encapsulated at the edge.

3. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 1, characterized in that: The auxiliary ventilation area (22) has a built-in louvered baffle (23), which can be adjusted from 0 to 90° by rotating a knob.

4. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 2, characterized in that: The silicone sealing strip is connected to the filter membrane using a hot-melt pressing process to form a filter material encapsulation structure that can be replaced without damage.

5. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 3, characterized in that: The blades of the louvered deflector (23) are covered with a dust-repellent coating.

6. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 1, characterized in that: The magnetic component (4) includes a strong magnet and a soft magnetic compensation sheet, which is adapted to dual-mode adsorption of ferrous / non-ferrous window frames.

7. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 1, characterized in that: The back of the main frame (1) is provided with spare mounting holes for bolt fixing or nail-free adhesive installation.

8. The removable and washable partitioned dustproof and ventilated door and window railing according to claim 1, characterized in that: The partitioned filter module is a rectangular split design, with the high-permeability dustproof layer (21) and the auxiliary ventilation area (22) joined together by a plug-in structure.

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