Building fresh air system

Abstract

The utility model relates to the technical field of fresh air equipment, and discloses a building fresh air system which comprises a machine body, an inner cavity of the machine body is provided with a waste gas discharge cavity and an external air inlet cavity, the upper surface of the external air inlet cavity is provided with a nesting groove, and an inner cavity of the nesting groove is detachably connected with a filter frame in a clamped mode. Clamping blocks are fixedly connected to the two ends of the two sides of the filtering frame, clamping grooves are formed in inner cavities of the clamping blocks, and limiting moving grooves are transversely formed in the positions, on the outer sides of the clamping blocks, of the surface of the machine body; when the filter frame is replaced or cleaned, operation is easy and convenient, time and labor cost are saved, the damage risk of equipment is reduced, the good filter function is guaranteed, the sealing effect can be guaranteed, air leakage is prevented, it is guaranteed that fresh air is deeply purified through the multiple layers of filter screens, the filter efficiency of tiny particles, peculiar smells, germs and other pollutants is greatly improved, and the service life of the air purifier is prolonged. And indoor air is clean and high in quality.

Description

Technical Field

[0001] This utility model relates to the field of fresh air equipment technology, specifically a building fresh air system. Background Technology

[0002] A fresh air system works by using specialized equipment to supply fresh air into a sealed room from one side and exhaust it to the outside from the other side, creating a "fresh air flow field" within the room to meet the need for indoor ventilation. The implementation plan involves using high-pressure, high-flow-rate fans to forcefully supply air into the room from one side and exhaust it to the outside from the other side using specially designed exhaust fans. This forces the formation of a fresh air flow field within the system, while simultaneously filtering, disinfecting, sterilizing, oxygenating, and preheating (in winter) the incoming air.

[0003] Existing building ventilation systems typically use internal filters to remove fine particles and some germs from the incoming fresh air, enabling indoor-outdoor air exchange. However, the filters in traditional systems are bolted to the interior, making replacement and maintenance extremely inconvenient. Each filter replacement requires disassembling numerous bolts and surrounding components, wasting time and manpower. Furthermore, frequent disassembly can damage other delicate internal parts, affecting the system's performance and stability. The bolt-fixing method also makes it difficult to ensure a complete seal during filter installation, potentially leading to air leaks, reduced filtration efficiency, and unfiltered air entering the room, impacting indoor air quality and failing to provide users with a continuous, efficient, and high-quality fresh air supply. Therefore, we propose a new building ventilation system. Utility Model Content

[0004] The main objective of this invention is to provide a building ventilation system that can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a building fresh air system, comprising a body, wherein the inner cavity of the body is provided with an exhaust gas discharge chamber and an outside air inlet chamber, the upper surface of the outside air inlet chamber is provided with a nested groove, a filter frame is detachably snapped into the inner cavity of the nested groove, and snap-fit ​​blocks are fixedly connected to both ends of the filter frame, the inner cavity of the snap-fit ​​blocks is provided with snap-fit ​​grooves, and the outer surface of the body of the snap-fit ​​blocks is provided with a limiting movement groove laterally, the inner cavity of the limiting movement groove is provided with a drive screw that rotates laterally, the surface of the drive screw is threadedly connected with a connecting slider, and the side of the connecting slider facing the snap-fit ​​blocks is fixedly connected with a snap-fit ​​block, and the outer wall of the limiting movement groove is provided with a knob that rotates nested in it, and the inner wall of the knob is fixedly connected to one end of the drive screw.

[0006] Preferably, the slot is an inclined slot, the block is an inclined block, and the block is adapted to the slot.

[0007] Preferably, the lower surface of the filter frame is provided with a sealing gasket, and the sealing gasket is a rubber sealing gasket.

[0008] Preferably, a heat-conducting plate is provided laterally at the junction of the exhaust gas discharge chamber and the external gas inlet chamber, and the heat-conducting plate is a metal heat-conducting plate.

[0009] Preferably, the two sides of the external air inlet chamber are respectively interconnected with an indoor air outlet and an external air inlet, and the two sides of the exhaust gas outlet chamber are interconnected with an indoor air inlet and an exhaust gas outlet.

[0010] Preferably, the bottom of the filter frame is detachably connected to a dust filter, an activated carbon filter, and a nano-silver filter, and the dust filter, activated carbon filter, and nano-silver filter are sequentially arranged on the side of the external air inlet chamber near the external air intake.

[0011] Preferably, the inner side wall surface of the machine body is provided with a sound insulation panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model's filter frame achieves convenient detachable snap-fit ​​by engaging with the snap-fit ​​block, the limiting movement grooves on both sides of the upper surface of the unit, and the drive screw. When it is necessary to replace or clean the filter frame and its internal filter screen, the operator only needs to turn the knob on the outside of the limiting movement groove counterclockwise, causing the drive screw to rotate counterclockwise, so that the connecting slider moves outward along the limiting groove, thereby disengaging the snap-fit ​​block from the groove of the snap-fit ​​block, and the filter frame can be easily removed. The reverse operation can complete the quick installation, avoiding the cumbersome disassembly process brought about by the traditional bolt fixing method, greatly saving replacement time and labor costs, effectively reducing the risk of damage to the equipment caused by frequent disassembly, and ensuring that the filtration function of the fresh air system is always in good condition.

[0014] 2. This utility model utilizes a combination of a snap-fit ​​block, a snap-fit ​​plate, a snap-fit ​​groove, and a sealing gasket. The snap-fit ​​block engages with the snap-fit ​​block via the snap-fit ​​groove, thus fixing the filter frame from both sides. Due to the interaction of the inclined snap-fit ​​groove and the inclined snap-fit ​​block, during engagement, the snap-fit ​​block pushes inward with the inclined snap-fit ​​surface, causing the snap-fit ​​block and the filter frame to move downwards, thereby compressing the sealing gasket below. This improves the sealing effect of the filter frame during installation, effectively preventing unfiltered air from leaking into the room from the filter frame edges. It ensures that all fresh air entering the room is purified through layers of dust filters, activated carbon filters, and nano-silver filters, maximizing the filtration efficiency of the fresh air system for pollutants such as tiny particles, odors, and germs, thus guaranteeing the cleanliness and quality of indoor air. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial exploded view of the body of this utility model;

[0017] Figure 3 This is a cross-sectional view of the body of this utility model.

[0018] In the diagram: 1. Main body; 2. Indoor air outlet; 3. Indoor air inlet; 4. External air inlet; 5. Exhaust outlet; 6. Knob; 7. Limiting movement groove; 8. Drive screw; 9. Connecting slider; 10. Snap-fit ​​block; 11. Filter frame; 12. Nesting groove; 13. Snap-fit ​​block; 14. Snap-fit ​​groove; 15. Sealing gasket; 16. Exhaust outlet chamber; 17. External air inlet chamber; 18. Heat conduction plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example

[0021] Please see Figure 1 - Figure 3The diagram illustrates a building ventilation system, comprising a body 1. The body 1 has an exhaust gas chamber 16 and an outside air inlet chamber 17 within its interior. The outside air inlet chamber 17 has a nesting groove 12 on its upper surface. A filter frame 11 is detachably snapped into the nesting groove 12. Snap-fit ​​blocks 10 are fixedly connected to both ends of the filter frame 11. Each snap-fit ​​block 10 has a snap-fit ​​groove 14 within its interior. A limiting movement groove 7 is laterally formed on the outer surface of the body 1 of each snap-fit ​​block 10. A drive screw 8 is laterally rotatably mounted within the limiting movement groove 7. A connecting slider 9 is threadedly connected to the surface of the drive screw 8, and the connecting slider 9 faces the snap-fit ​​block 16. Each side of the 0 is fixedly connected with a locking block 13. The outer wall of the limiting moving groove 7 is rotatably nested with a knob 6, and the inner wall of the knob 6 is fixedly connected to one end of the drive screw 8. Rotating the knob 6 drives the drive screw 8 to rotate, so that the inclined locking block 13 on the connecting slider 9 interacts with the inclined groove of the locking block 10, which can accurately fix the filter frame 11 in the nesting groove 12. The reverse operation can complete the quick disassembly, avoiding the cumbersome disassembly process brought by the traditional bolt fixing method, greatly saving replacement time and labor costs, effectively reducing the risk of damage to the equipment caused by frequent disassembly, and ensuring that the filtration function of the fresh air system is always in good condition.

[0022] The slot 14 is an inclined slot, and the block 13 is an inclined block, which is adapted to the slot 14. The lower surface of the filter frame 11 is provided with a sealing gasket 15, which is a rubber sealing gasket 15. When the block 13 is engaged, it pushes the engagement block 10 inward with the inclined engagement surface, thereby driving the engagement block 10 and the filter frame 11 to move downward, thereby squeezing the sealing gasket 15 below. This improves the sealing effect of the filter frame 11 during installation and can effectively prevent unfiltered air from leaking into the room from the edge of the filter frame 11, ensuring that all fresh air entering the room can be purified by layers of dust filter, activated carbon filter and nano silver filter.

[0023] A heat-conducting plate 18 is provided laterally at the junction of the exhaust gas discharge chamber 16 and the outside air inlet chamber 17, and the heat-conducting plate 18 is a metal heat-conducting plate 18. By setting the metal heat-conducting plate 18 at the junction of the exhaust gas discharge chamber 16 and the outside air inlet chamber 17, heat exchange and transfer between fresh air and exhaust gas are realized. The waste heat of exhaust gas can be used to preheat the incoming fresh air, reducing the extra energy consumption caused by heating the fresh air, which helps to maintain a relatively stable indoor temperature environment and improve the comfort of the indoor environment.

[0024] The external air inlet chamber 17 is interconnected with an indoor air outlet 2 and an external air inlet 4 on both sides. The exhaust gas outlet chamber 16 is interconnected with an indoor air inlet 3 and an exhaust gas outlet 5 on both sides. The bottom of the filter frame 11 is detachably connected to a dust filter, an activated carbon filter, and a nano-silver filter, which are sequentially arranged on the side of the external air inlet chamber 17 near the external air inlet 4. Through the sequential arrangement of the dust filter, activated carbon filter, and nano-silver filter, progressive purification of the intake air is achieved. The dust filter first intercepts large dust particles in the air, the activated carbon filter adsorbs harmful gases and odors, and the nano-silver filter effectively sterilizes and inhibits bacteria. Under their synergistic effect, they significantly remove a variety of pollutants in the air, ensuring that the fresh air delivered into the room is fresh, clean, healthy, and harmless.

[0025] The inner wall surface of the body 1 is provided with a sound insulation board; by setting the sound insulation board on the inner wall of the body 1, the noise of the fan operation and the noise of air flow are effectively blocked, reducing the noise generated by the fresh air system during operation from spreading to the indoor space, and creating a quiet and comfortable indoor environment.

[0026] It should be noted that this utility model is a building fresh air system. During operation, the accompanying fan starts running, and fresh outdoor air is drawn into the outside air intake chamber 17 through the outside air intake 4 under the action of the fan. As the air enters the outside air intake chamber 17, it first passes through a filter assembly composed of a dust filter, an activated carbon filter, and a nano-silver filter. The dust filter can intercept larger particles of dust and other impurities in the air; the activated carbon filter can effectively adsorb odors, harmful gases, and some microorganisms; and the nano-silver filter, with its antibacterial properties, further kills bacteria and viruses, thus comprehensively purifying the air. The treated fresh air is then transported to various areas of the room from the indoor air outlet 2, forming a fresh air flow field to meet the needs of indoor occupants for fresh air. Simultaneously, stale indoor air, under the suction of the fan, enters the exhaust chamber 16 from the indoor air intake 3 and is then discharged outdoors through the exhaust outlet 5, effectively ensuring the cleanliness and quality of the indoor air.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0028] 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 building fresh air system, comprising a body (1), characterized in that: The inner cavity of the body (1) is provided with an exhaust gas discharge chamber (16) and an external air inlet chamber (17). The upper surface of the external air inlet chamber (17) is provided with a nested groove (12). The inner cavity of the nested groove (12) is detachably fitted with a filter frame (11). Both ends of the filter frame (11) are fixedly connected with a snap-fit ​​block (10). The inner cavity of the snap-fit ​​block (10) is provided with a snap-fit ​​groove (14). The outer surface of the body (1) of the snap-fit ​​block (10) is provided with a limit moving groove (7) laterally. The inner cavity of the limit moving groove (7) is provided with a drive screw (8) that rotates laterally. The surface of the drive screw (8) is threadedly connected with a connecting slider (9). The side of the connecting slider (9) facing the snap-fit ​​block (10) is fixedly connected with a snap-fit ​​block (13). The outer wall of the limit moving groove (7) is provided with a knob (6) that is nested in a rotating manner. The inner wall of the knob (6) is fixedly connected to one end of the drive screw (8).

2. The building fresh air system according to claim 1, characterized in that: The slot (14) is an inclined slot, the block (13) is an inclined block, and the block (13) is adapted to the slot (14).

3. The building fresh air system according to claim 1, characterized in that: The filter frame (11) has a sealing gasket (15) on its lower surface, and the sealing gasket (15) is a rubber sealing gasket (15).

4. A building fresh air system according to claim 1, characterized in that: A heat-conducting plate (18) is provided laterally at the junction of the exhaust gas discharge chamber (16) and the external gas inlet chamber (17), and the heat-conducting plate (18) is a metal heat-conducting plate (18).

5. A building fresh air system according to claim 1, characterized in that: The external air inlet chamber (17) is connected to the indoor air outlet (2) and the external air inlet (4) on both sides respectively, and the exhaust gas outlet chamber (16) is connected to the indoor air inlet (3) and the exhaust gas outlet (5) on both sides.

6. A building fresh air system according to claim 1, characterized in that: The bottom of the filter frame (11) is detachably connected to a dust filter, an activated carbon filter and a nano silver filter, and the dust filter, activated carbon filter and nano silver filter are arranged sequentially on the side of the external air inlet chamber (17) and close to the external air inlet (4).

7. A building fresh air system according to claim 1, characterized in that: The inner wall surface of the body (1) is provided with a sound insulation board.

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