Multifunctional building door and window

Abstract

The utility model provides a multifunctional building door and window, which belongs to the technical field of building doors and windows, and comprises a door and window main body, a positive and negative rotation fan and a button, an inner tuyere is formed in the inner side of the door and window main body; the inner tuyere is close to the bottom of the door and window body; an outer air opening is formed in the outer side of the door and window body. The outer tuyere is close to the top of the door and window body; an air duct communicated with the inner air opening and the outer air opening is arranged in the door and window body; a positive and negative rotation fan is arranged in the air duct; one end of the rotating shaft of the forward and reverse rotation fan is close to the inner side of the door and window main body, and the other end is close to the outer side of the door and window main body; the button is arranged on the inner side of the door and window body and connected with the forward and reverse rotation fan and used for controlling connection or disconnection of the forward and reverse rotation fan and a power source. The obliquely-arranged fan rotating shaft can reduce the space occupied by the fan in the direction perpendicular to the thickness direction of the door plate, and the ventilation function can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building doors and windows, in particular to a multifunctional building door and window. Background Art

[0002] As people's requirements for living environment improve, the functional requirements for doors and windows are also increasing. Especially in areas with poor air quality or where indoor microclimate needs to be adjusted, natural ventilation alone can no longer meet people's healthy living needs. Therefore, the market demand for multifunctional door and window products that integrate air purification, effective ventilation control and other functions is gradually increasing. Utility Model Content

[0003] In view of the above problems, the purpose of the present utility model is to provide.

[0004] Provided is a multifunctional building door and window, comprising: a door and window body, a forward and reverse fan and a button;

[0005] An inner air vent is arranged on the inner side of the door and window body; the inner air vent is arranged close to the bottom of the door and window body;

[0006] An external air vent is arranged on the outside of the door and window body; the external air vent is arranged close to the top of the door and window body;

[0007] An air duct connecting the inner air outlet and the outer air outlet is arranged inside the door and window body;

[0008] The forward and reverse rotating fan is arranged in the air duct;

[0009] The rotating shaft of the forward and reverse rotating fan is tilted, and one end of the rotating shaft of the forward and reverse rotating fan is close to the inner side of the door and window body, and the other end is close to the outer side of the door and window body;

[0010] The button is arranged on the inner side of the door and window body and is connected to the forward and reverse rotating fan to control the connection or disconnection of the forward and reverse rotating fan with a power source.

[0011] Further, it also includes a windshield;

[0012] The wind shield is arranged at the inner air outlet, and a sufficient gap is left between the wind shield and the inner air outlet for air circulation.

[0013] Furthermore, the windshield includes a connecting plate and a shielding plate;

[0014] The connecting plate is arranged horizontally, one end of which is arranged on the top of the inner air outlet and connected to the door and window body;

[0015] The shielding plate is arranged vertically, and the top is fixedly connected to the other end of the connecting plate;

[0016] The bottom of the shielding plate is below the bottom of the inner air outlet.

[0017] Furthermore, it also includes a first filter cotton;

[0018] The first filter cotton plug is between the lower part of the shielding plate and the door and window body.

[0019] Further, it also includes air vent door panels;

[0020] The air outlet door plate is arranged at the external air outlet and is rotatably connected to the door and window body, and is used to open or close the external air outlet.

[0021] Furthermore, the bottom of the air vent door panel is rotatably connected to the door and window body.

[0022] Furthermore, a buckle is provided on the top of the inner side of the air outlet door panel;

[0023] The door and window body at the top of the external air outlet is provided with a card slot adapted to the card buckle;

[0024] The buckle is adapted to snap into the slot, so that the air outlet door panel can be buckled onto the external air outlet to close the external air outlet.

[0025] Furthermore, it also includes a filter screen and a second filter cotton;

[0026] The filter screen and the second filter cotton are arranged in the external air outlet.

[0027] Furthermore, a first stopper is provided at the top and bottom of the inner side of the external air outlet; a second stopper is provided at the top and bottom of the outer side of the external air outlet; and the filter net and the second filter cotton are clamped between the first stopper and the second stopper.

[0028] Furthermore, it also includes an inspection port, which is arranged at a position corresponding to the door and window body and the forward and reverse rotating fans; the area of ​​the inspection port is larger than the area of ​​the forward and reverse rotating fans; and a protective plate is detachably installed on the inspection port.

[0029] The embodiments of the present invention have the following advantages or beneficial effects:

[0030] 1. Through the fan, combined with the upper and lower internal and external air outlets and air duct design, it can promote air flow more efficiently and achieve rapid ventilation.

[0031] Although the vertical fan shaft can maximize the air flow speed, it takes up a lot of space. The horizontal fan shaft has a slow air flow speed and poor ventilation effect. The tilted fan shaft can reduce the space occupied by the fan in the direction perpendicular to the thickness of the door panel and ensure the ventilation function.

[0032] 2. The fan has forward and reverse rotation functions, which can discharge the city air to the outside, and also introduce outdoor air into the city, promoting internal and external air circulation.

[0033] 3. The first filter cotton, the filter located at the external air outlet, and the second filter cotton together constitute a multi-level air purification system, which can effectively filter dust, pollen and other pollutants introduced from the outdoors, providing cleaner air indoors.

[0034] 4. The snap-on design of the air outlet door panel ensures the sealing of the external air outlet, and is convenient for users to manually open or close it. Combined with the filter net and the second filter cotton fixed by the first block and the second block, the stability and easy replacement of the filtration system are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0036] Figure 1 A schematic structural diagram of a multifunctional building door and window provided in one embodiment of the utility model;

[0037] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0038] Figure 3 for Figure 1 Enlarged view of part B in .

[0039] The reference numerals are described as follows:

[0040] 1. Door and window body, 2. Forward and reverse fan, 3. Inner air outlet, 4. Outer air outlet, 5. Wind shield, 6. First filter cotton, 7. Air outlet door panel, 8. Filter net, 9. Second filter cotton, 10. First stopper, 11. Second stopper;

[0041] 51. Connecting plate, 52. Shielding plate. DETAILED DESCRIPTION

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0043] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.

[0044] Figure 1 A schematic structural diagram of a multifunctional building door and window provided in one embodiment of the utility model; Figure 2 for Figure 1 A magnified view of part A in FIG. Figure 3 for Figure 1 The above schematic diagram is not an actual scale of the actual product.

[0045] like Figures 1 to 3 As shown, a multifunctional building door and window according to an embodiment of the utility model comprises: a door and window body 1, a forward and reverse fan 2 and a button.

[0046] As the core component of the door and window structure, the door and window body 1 has a fine structural design and strong functionality, and is mainly composed of the following key parts:

[0047] Frame structure: The frame of the door and window body 1 is a fixed frame that supports the entire door and window system. It is usually made of durable materials such as wood, aluminum alloy, plastic (such as PVC), etc. The frame design ensures the stability and strength of the door and window, and can withstand wind pressure, deadweight, and various stresses in daily operation. The frame may contain a cavity structure inside to enhance thermal insulation and sound insulation, and also provide space for installing hardware accessories.

[0048] Hardware accessories installation position: There is a position reserved on the door and window body 1 for installing hardware accessories (such as hinges, locks, pulleys, etc.). These hardware parts are used for the opening and closing operations of doors and windows to ensure the normal opening and closing and safety of doors and windows.

[0049] Reinforcement and sealing design: In order to improve the stability and sealing of doors and windows, the edges of the door and window body 1 may be designed with sealing strips or rubber strips, as well as a multi-point locking system to reduce external noise, rainwater penetration and heat exchange.

[0050] Installation interface: The connection part between the door and window body 1 and the building wall is designed with a precise installation interface. If plug installation is adopted, a suitable gap must be left between the wall and filled and sealed with appropriate materials to ensure the stability of the door and window and the integrity of the building.

[0051] Among them, an inner air vent 3 is arranged inside the door and window body 1, which is usually located near the bottom of the inner side of the door and window body 1. An outer air vent 4 is arranged outside the door and window body 1, which is usually located near the top of the outer side of the door and window body 1. Such a design is conducive to forming good natural ventilation and improving indoor air circulation efficiency.

[0052] Inside the door and window body 1, there is an air duct connecting the inner air outlet 3 and the outer air outlet 4, which promotes the orderly flow of air inside the door and window and helps to improve the ventilation effect.

[0053] A forward and reverse rotating fan 2 is arranged in the air duct, and the rotating shaft of the forward and reverse rotating fan 2 is arranged obliquely, and one end of the rotating shaft of the forward and reverse rotating fan 2 is close to the inner side of the door and window body 1, and the other end is close to the outer side of the door and window body 1.

[0054] The fan is designed with forward and reverse functions, which means that its rotation direction can be switched. Through electronic control (e.g., through a built-in motor and circuit), the user can easily control the rotation direction of the fan through a button or other control device to adapt to different seasons or ventilation needs.

[0055] The fan shaft is not vertically arranged but tilted at a certain angle. This design cleverly uses the tilt angle to guide the airflow. When the fan rotates, the airflow not only moves longitudinally along the air duct, but also generates lateral thrust due to the tilt angle, which can more effectively promote the mixing and circulation of air inside the door and window body 1.

[0056] One end of the fan shaft is close to the inside of the door and window body 1, while the other end is close to the outside of the door and window body 1. This layout allows the fan to draw air from one side of the door and window body 1, pass through the air duct, and then discharge from the other side when it rotates. The tilted shaft makes this process more efficient, making full use of the height difference of the door and window body 1 and accelerating air circulation.

[0057] The fan's power supply can be connected directly to the household AC power supply (usually 220V or 110V, depending on the region).

[0058] The button is arranged on the inner side of the door and window body 1 and connected to the forward and reverse fan 2 to control the connection or disconnection of the forward and reverse fan 2 with the power supply. The button controls the switch of the fan, providing a simple operation method for the user. In the future, the intelligent control system can be further integrated to realize remote control or automatic adjustment, adapting to the development trend of smart home.

[0059] In a preferred embodiment, it further comprises a wind shield 5 ; the wind shield 5 is arranged at the inner air outlet 3 , and a sufficient gap is left between the wind shield 5 and the inner air outlet 3 for air circulation.

[0060] The wind shield 5 is designed to be composed of two parts, namely a connecting plate 51 and a shielding plate 52. Such a design not only ensures the stability of the structure, but also facilitates adjustment and installation.

[0061] Connecting plate 51: The connecting plate 51 is arranged horizontally, and one end is fixed (generally welded) to the top of the inner air vent 3 of the door and window body 1, ensuring a firm connection between the wind deflector 5 and the door and window body 1. This horizontal layout is conducive to dispersing the force and preventing displacement or falling off caused by external forces such as wind pressure.

[0062] Shielding plate 52: Shielding plate 52 is vertically arranged, and its top is fixedly connected to the other end of connecting plate 51 to form a stable "L"-shaped structure. The bottom of shielding plate 52 is lower than the bottom of inner air outlet 3. Such design ensures that even if wind shielding plate 5 is in the closed state, necessary air circulation space can be maintained to avoid completely blocking air circulation.

[0063] The design of the wind shield 5 can shield the inner air outlet 3, making the appearance of the door and window body 1 neat and beautiful.

[0064] Furthermore, two side panels are added on both sides of the connecting plate 51 and the shielding plate 52, and these three components (connecting plate 51, shielding plate 52, side panels) together form a closed "U"-shaped or box-like structure. The side panels are tightly connected to the connecting plate 51 and the shielding plate 52 to ensure the sealing of the side, and only the gap between the bottom of the shielding plate 52 and the bottom of the inner air outlet 3 is retained as the air inlet.

[0065] By closing the sides, air flow is strictly restricted and can only enter from the bottom opening. This design greatly enhances the control of air direction and speed, making the ventilation effect more concentrated and efficient.

[0066] Windshield 5 materials include but are not limited to:

[0067] Stainless steel: has excellent anti-rust and anti-corrosion properties, but the cost is relatively high.

[0068] Galvanized sheet: The surface galvanizing provides good corrosion resistance, good tensile properties and long service life. The first-grade galvanized sheet can ensure good coating quality and uniformity.

[0069] Galvanized steel sheet: Anti-oxidation elements are added to the galvanized steel sheet to further improve the anti-corrosion and anti-rust properties. However, the adhesion of electrostatic powder spraying may not be as good as that of galvanized steel sheet.

[0070] Color-coated steel plate: It is easy to process, but the basic material is iron plate, which is prone to corrosion and rust at the fracture after long-term outdoor use.

[0071] As for the connection method between the windshield 5 and the door and window body 1, the following methods may be used:

[0072] Screw fixing: Using screw holes pre-designed on the door and window body 1, the connecting plate 51 of the wind deflector 5 is directly fixed to the door and window body 1 using screws. This method is the most common and stable.

[0073] Snap-on or mortise and tenon connection: A special snap-on structure or mortise and tenon structure is designed so that the wind deflector 5 can be snap-fitted and fixed with the corresponding structure on the door and window body 1, which is convenient for installation and disassembly.

[0074] Magnetic connection: For some materials (such as a windshield 5 containing metal components), the magnetic principle can be used for fixation. This method is convenient for installation, but the durability and sealing of the magnetic force must be considered.

[0075] Paste fixation: Use high-strength structural adhesive or double-sided tape, which is suitable for some windshields 5 made of lightweight materials, but the reliability of long-term pasting must be ensured.

[0076] Welding fixation is a method of permanently connecting metal materials together by heating them to a molten state and then cooling them to form a strong joint. It is often used to connect the metal windshield 5 with the door and window body 1.

[0077] When choosing appropriate materials and connection methods, we must consider not only the functionality under actual use conditions, but also the ease of installation, simplicity of maintenance and overall aesthetics.

[0078] In a preferred embodiment, a first filter cotton 6 is further included; the first filter cotton 6 is plugged between the lower part of the shielding plate 52 and the door and window body 1.

[0079] The bottom of the shielding plate 52 and the door and window body 1 are designed to allow a certain thickness of filter cotton material to be inserted without obstructing air circulation or affecting the normal opening and closing of the door and window. The first filter cotton 6 is usually designed to be replaceable. After being cut into a suitable size, it is simply inserted into the reserved gap. There may also be auxiliary fixings such as fixing clips or Velcro to ensure that it will not be easily displaced under the action of wind.

[0080] The function of the first filter cotton 6 is to preliminarily filter the air entering the room through the inner air outlet 3, which can effectively intercept larger particles such as dust, pollen, insect remains, etc., and provide cleaner air for the room.

[0081] Due to the replaceable design, when the filter cotton reaches saturation or its efficiency decreases, the user can easily take out and replace it with a new filter cotton, which has low maintenance cost and easy operation.

[0082] The addition of the first filter cotton 6, as a part of the door and window air purification system, not only improves the air purification efficiency of the doors and windows, but also ensures the high efficiency and economy of long-term use through simple maintenance measures. It is a practical and environmentally friendly innovative measure in the design of modern multifunctional building doors and windows.

[0083] In another preferred embodiment, it further includes an air vent door plate 7 ; the air vent door plate 7 is disposed at the external air vent 4 and is rotatably connected to the door and window body 1 for opening or closing the external air vent 4 .

[0084] The air vent door panel 7 is usually made of a lightweight and weather-resistant material, such as aluminum alloy, engineering plastic or composite material, to ensure its stability and durability under long-term exposure to outdoor environments. Its shape and size are customized according to the specific size of the external air vent 4 to ensure a close fit.

[0085] The air vent door panel 7 is firmly connected to the edge of the outer air vent 4 of the door and window body 1 through a bearing, a rotating shaft or a hinge, so that the door panel can rotate freely. This connection method ensures that the door panel is stable and smooth when opening and closing, while maintaining good sealing.

[0086] The contact edge between the air vent door panel 7 and the door and window body 1 is usually equipped with a sealing strip or a rubber gasket. When the door panel is closed, these sealing materials will cling to the edge of the door and window body 1 to prevent air leakage and improve the sealing effect.

[0087] The user can rotate the air vent door panel 7 manually or electrically (if an electric drive mechanism is designed) according to actual needs to easily open or close the external air vent 4, thereby adjusting the indoor and outdoor air exchange volume and achieving a variety of ventilation states from fully open to fully closed.

[0088] Under adverse weather conditions, closing the air vent door panel 7 can effectively prevent rain, dust and other foreign matter from entering the room through the external air vent 4, thereby protecting the indoor environment from pollution.

[0089] In winter or when the air conditioner is in use, closing the air vent door panel 7 can reduce the loss of cold and hot energy, improve the indoor thermal insulation or refrigeration efficiency, and contribute to energy conservation and emission reduction.

[0090] Through the flexible adjustment of the air vent door panel 7, residents can adjust the indoor ventilation volume at any time according to external climate conditions and personal preferences, maintain the freshness and suitable temperature of the indoor air, and improve living comfort.

[0091] In another embodiment, the bottom of the vent door panel 7 is rotatably connected to the door and window body 1. A buckle is provided on the top of the inner side of the vent door panel 7; a slot adapted to the buckle is provided on the door and window body 1 at the top of the external vent 4; the buckle and the slot are adapted to snap together, so that the vent door panel 7 can be buckled at the external vent 4 to close the external vent 4.

[0092] The bottom of the air vent door panel 7 is connected to the door and window body 1 through a well-designed rotating connection device. This usually involves an axis or shaft, which is fixed to the bottom edge of the external air vent 4 of the door and window body 1, and the air vent door panel 7 rotates around this axis. Such a design allows the door panel to smoothly go from fully open to fully closed, realizing flexible control of the external air vent 4.

[0093] A group or multiple buckle structures are arranged on the top of the inner side of the air outlet door panel 7. These buckles may be raised metal sheets, plastic fasteners or any suitable elements for buckling. The top edge of the outer air outlet 4 of the door and window body 1 is correspondingly designed with a slot, which matches the shape of the buckle to ensure that the two can be tightly buckled.

[0094] When the external air vent 4 needs to be closed, the user only needs to rotate the air vent door panel 7 upward to the top, and the buckle on the door panel will naturally fall into the preset slot on the door and window body 1. The close fit between the buckle and the slot can effectively fix the air vent door panel 7 in the closed position, and even in the case of strong external wind or accidental collision, it can maintain the closed state to prevent accidental opening.

[0095] When opening the air vent door panel 7, the user only needs to gently lift the door panel to disengage the buckle from the slot, and then the door panel can be freely rotated to the desired opening angle. The operation is simple and intuitive.

[0096] This design of the air vent door panel 7 that combines a bottom rotating connection with a top snap-on lock greatly improves the ease of use, sealing performance and overall safety of multifunctional building doors and windows.

[0097] It also includes a filter screen 8 and a second filter cotton 9 ; the filter screen 8 and the filter cotton are arranged in the external air outlet 4 .

[0098] The filter 8 and the second filter 9 are cleverly designed and installed inside the external air outlet 4. The external air outlet 4 is no longer a simple opening, but is transformed into an intelligent module integrating ventilation and air purification. The filter 8 is usually close to the outside, and the second filter 9 is located behind it, closer to the indoor side.

[0099] The filter 8 is woven from fine metal wire mesh, synthetic fiber or other weather-resistant materials, has good air permeability and durability, and can effectively block larger impurities such as leaves, insects, larger dust particles, etc., providing the first line of defense for subsequent air purification.

[0100] Next to the filter 8 is the second filter 9, which is usually made of high-efficiency, low-resistance materials, such as HEPA filter cotton or activated carbon filter cotton. The second filter 9 is responsible for capturing smaller particles, such as PM2.5, smoke, pollen, and some viruses and bacteria, further purifying the air entering the room and improving the indoor air quality.

[0101] The double filtering mechanism significantly improves the air purification efficiency. Even tiny pollutants can hardly escape the interception of the filter 8 and the second filter cotton 9, providing a fresh and healthy air environment for the room.

[0102] In order to facilitate maintenance and replacement, the filter screen 8 and the second filter cotton 9 are usually designed as an easily removable module. The user can regularly clean or replace the filter material according to usage and air quality to maintain the best filtering effect.

[0103] A first stopper 10 is provided at the top and bottom of the inner side of the outer air outlet 4 ; a second stopper 11 is provided at the top and bottom of the outer side of the outer air outlet 4 ; the filter screen 8 and the second filter cotton 9 are clamped between the first stopper 10 and the second stopper 11 .

[0104] A group of first blocks 10 are respectively provided at the top and bottom of the inner side of the outer air outlet 4. These blocks are usually fixed on the door and window body 1 and are designed with corresponding grooves or protrusions for positioning and supporting the filter material. At the same time, second blocks 11 are also provided at the top and bottom of the outer side of the outer air outlet 4, which correspond to the first blocks 10 to form a closed frame structure. These blocks can be made of metal, plastic or other durable materials to ensure the stability of the structure.

[0105] The filter screen 8 and the second filter cotton 9 are both flexible and can be deformed to a certain extent when subjected to external force, and can restore their original shapes after the external force is removed. Therefore, when installing the filter screen 8 and the second filter cotton 9 between the first stopper 10 and the second stopper 11, it is only necessary to deform the filter screen 8 and the second filter cotton 9 by hand and then insert them between the two stoppers.

[0106] The clamping structure formed by the first stopper 10 and the second stopper 11 can ensure the stable installation of the filter material without the need for additional fixing tools. At the same time, when the filter screen 8 and the second filter cotton 9 need to be replaced or cleaned, the filter material can be easily taken out, and maintenance is simple and quick.

[0107] In another embodiment, an inspection port is further included, which is arranged at a position corresponding to the door and window body 1 and the forward and reverse rotating fan 2; the area of ​​the inspection port is larger than the area of ​​the forward and reverse rotating fan 2. The ingenious configuration of the inspection port is intended to facilitate the maintenance and replacement of the forward and reverse rotating fan 2.

[0108] The inspection opening is specially designed and installed on the door and window body 1, and its position corresponds to the built-in forward and reverse fan 2. This means that the inspection opening is directly facing the fan, ensuring that maintenance personnel can directly access the fan unit without large-scale disassembly of the door and window structure.

[0109] More importantly, the area of ​​the inspection opening is set larger than the actual area occupied by the forward and reverse fan 2. This design consideration is to provide enough space so that the maintenance personnel's arms and tools can enter and exit without obstacles to clean, inspect or replace the fan. The larger opening area ensures the convenience and efficiency of operation and reduces the space limitations that may be encountered during maintenance.

[0110] The removable protective plate on the inspection port is an important safety and maintenance convenience consideration in the design of multifunctional building doors and windows. Its main function is to close the inspection port to prevent foreign objects or personnel from accidentally contacting the fan or other internal components when the doors and windows are not undergoing maintenance operations, thus ensuring safe use.

[0111] The protective plate is usually made of light but strong materials, such as engineering plastics, metal sheets (such as aluminum alloy) or reinforced glass fiber, to ensure that it has a certain strength to withstand daily minor impacts and is easy to carry and install. In terms of surface treatment, anti-rust and anti-corrosion treatment may be adopted to adapt to different environmental conditions.

[0112] The protective plate is fixed to the inspection port by a detachable connector. Common fixing methods include but are not limited to screw fixing, snap-on fixing, magnetic suction fixing or quick fasteners. These designs are all aimed at ensuring that the protective plate is firmly installed and convenient for users to quickly remove it when maintenance is required.

[0113] Sealing strips or rubber gaskets are designed between the edges of the protective plates and the inspection openings to ensure that after the protective plates are installed, they can effectively prevent external dust, moisture, insects, etc. from entering the interior of the doors and windows, keeping the door and window system clean and dry.

[0114] The design of the protective plate will be coordinated with the overall style of the doors and windows, with a smooth surface and matching colors. After installation, it will not affect the aesthetic appearance of the doors and windows and maintain the consistency of the building's appearance.

[0115] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0116] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0117] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0118] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional building door and window, characterized in that: include: Door and window main body (1), forward and reverse fans (2) and buttons; An inner air vent (3) is provided on the inner side of the door and window body (1); the inner air vent (3) is provided close to the bottom of the door and window body (1); An external air vent (4) is arranged on the outside of the door and window body (1); the external air vent (4) is arranged close to the top of the door and window body (1); An air duct connecting the inner air outlet (3) and the outer air outlet (4) is arranged inside the door and window body (1); The forward and reverse rotating fan (2) is arranged in the air duct; The rotating shaft of the forward and reverse rotating fan (2) is arranged obliquely, and one end of the rotating shaft of the forward and reverse rotating fan (2) is close to the inner side of the door and window body (1), and the other end is close to the outer side of the door and window body (1); The button is arranged on the inner side of the door and window body (1) and is connected to the forward and reverse rotating fan (2) to control the connection or disconnection of the forward and reverse rotating fan (2) with a power source.

2. A multifunctional building door and window according to claim 1, characterized in that: Also includes a windshield (5); The wind shield (5) is arranged at the inner air outlet (3), and a sufficient gap is left between the wind shield and the inner air outlet (3) for air circulation.

3. A multifunctional building door and window according to claim 2, characterized in that: The wind shield (5) comprises a connecting plate (51) and a shielding plate (52); The connecting plate (51) is arranged horizontally, one end of which is arranged at the top of the inner air outlet (3) and is connected to the door and window body (1); The shielding plate (52) is arranged vertically, and the top is fixedly connected to the other end of the connecting plate (51); The bottom of the shielding plate (52) is below the bottom of the inner air outlet (3).

4. A multifunctional building door and window according to claim 3, characterized in that: Also includes a first filter cotton (6); The first filter cotton (6) is plugged between the lower part of the shielding plate (52) and the door and window body (1).

5. The multifunctional building door and window according to claim 1, characterized in that: Also includes an air vent door panel (7); The air outlet door plate (7) is arranged at the external air outlet (4) and is rotatably connected to the door and window body (1) and is used to open or close the external air outlet (4).

6. A multifunctional building door and window according to claim 5, characterized in that: The bottom of the air vent door panel (7) is rotatably connected to the door and window main body (1).

7. A multifunctional building door and window according to claim 6, characterized in that: A buckle is provided at the top of the inner side of the air outlet door plate (7); A card slot adapted to the card buckle is provided on the door and window body (1) at the top of the external air outlet (4); The buckle is adapted to snap into the slot, so that the air outlet door panel (7) can be snapped onto the external air outlet (4) to close the external air outlet (4).

8. The multifunctional building door and window according to claim 1, characterized in that: It also includes a filter screen (8) and a second filter cotton (9); The filter screen (8) and the second filter cotton (9) are arranged in the external air outlet (4).

9. The multifunctional building door and window according to claim 8, characterized in that: A first stopper (10) is provided at the top and bottom of the inner side of the external air outlet (4); a second stopper (11) is provided at the top and bottom of the outer side of the external air outlet (4); and the filter screen (8) and the second filter cotton (9) are clamped between the first stopper (10) and the second stopper (11).

10. The multifunctional building door and window according to claim 1, characterized in that: It also comprises an inspection port, which is arranged at a position of the door and window body (1) corresponding to the forward and reverse rotating fan (2); the area of ​​the inspection port is larger than the area of ​​the forward and reverse rotating fan (2); and a protective plate is detachably mounted on the inspection port.

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