Fresh air purification all-in-one machine air inlet and outlet device

Abstract

The utility model discloses a new trend purification integrated machine air inlet and outlet device belongs to air treatment equipment technical field, including air inlet shell, air outlet mechanism, fixing frame, fan, air inlet filter core and air inlet screen, and fixing frame is U type structure, and the fan is inserted in the inside of fixing frame, and the air outlet mechanism is the volute type double -deck structure, and the air outlet mechanism is set in the fan outside, and the air outlet mechanism is set in the top of fixing frame, and the air inlet shell is the prism platform type, and the air inlet shell is set in the top of air outlet mechanism, and the air inlet screen is the prism platform type, and is inserted in the air inlet shell, and the air inlet screen is connected with the inner wall of air inlet shell, and the gap is arranged between air inlet shell and air inlet screen, and the sound insulation spare is arranged in the gap, and the air inlet filter core is installed in the air inlet end of air inlet shell. Solveed the problem such as the poor purification effect caused by the traditional equipment because of the fan vibration easy to loosen, the low efficiency of the unobstructed air outlet, the big operation noise and the insufficient air intake. Have the advantage such as the stable structure, the air outlet efficiency, the operation quiet, the complete purification.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, specifically to an air intake and exhaust device for an integrated fresh air purification unit. Background Technology

[0002] In the field of integrated fresh air purification units, the long-term operational stability and performance of the equipment face challenges. Among these challenges, the method of fixing the fan is crucial. However, existing technologies generally use simple brackets or bolts for direct fixing. This simple structure is difficult to counteract the continuous vibration generated by the fan during operation, leading to loosening of the fixing points and even wear of components. This not only creates potential risks to the lifespan of the equipment but also directly threatens the reliability of its operation.

[0003] Meanwhile, the design quality of the air intake mechanism, as the source of air introduction, directly determines the overall purification efficiency of the machine. Traditional air intake devices mostly adopt a single structure such as rectangle or circle, which has a limited effective air intake area and uneven air intake speed, easily forming airflow dead zones. The geometric limitations of this design result in insufficient air intake per unit time, failing to provide sufficient and uniform air for subsequent purification modules, thus becoming a limiting factor in improving the overall purification efficiency of the machine.

[0004] Therefore, how to provide an air intake and exhaust device for a fresh air purification unit that overcomes the defects of existing structures is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides an air intake and exhaust device for a fresh air purification integrated machine to solve the problems of unstable equipment operation, low air output efficiency, high noise and insufficient overall purification efficiency caused by unreasonable fan fixing structure, insufficient air outlet guidance and noise reduction capabilities of fan cover, and poor structural design of air intake mechanism in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses an air inlet and outlet device for an integrated fresh air purification unit, comprising: The fixing frame has a U-shaped structure, and a fan is inserted inside the fixing frame; The air outlet mechanism has a volute-type double-layer structure. The air outlet mechanism is sleeved on the outside of the fan and is located above the fixed frame. The air inlet housing is frustoshaped and is positioned above the air outlet mechanism. An air inlet screen, shaped like a frustum, is inserted inside the air inlet housing. A gap is provided between the air inlet housing and the air inlet screen, and a sound insulation component is installed in the gap. An air inlet filter element is installed at the air inlet end of the air inlet housing.

[0007] In one possible implementation, the fixing frame includes: The fixed frame body has a fan mounting hole through the upper and lower walls, and the fan is inserted into the fan mounting hole; The first mounting hole penetrates the upper and lower walls of the fixing frame body. The first mounting holes are arranged circumferentially outside the fan mounting hole. The first mounting hole is connected to the fan. The second mounting hole penetrates the upper and lower walls of the fixing frame body. The second mounting hole is circumferentially arranged outside the first mounting hole. The second mounting hole is connected to the air outlet mechanism. A reinforcing rib assembly is installed at the bottom of the mounting frame body.

[0008] In one possible implementation, the air outlet mechanism includes: The protective cover has a volute-like structure. An air inlet window is provided at the top of the protective cover and is located above the fan. A connecting plate extends from the bottom of the protective cover. A connecting shell is integrally formed on the top of the protective cover. The connecting shell surrounds the air inlet window and has a first threaded hole. An air outlet baffle is inserted inside the protective cover. One top end of the air outlet baffle is connected to the inner wall of the protective cover. A gap is formed between the air outlet baffle and the protective cover. A sound insulation component is installed in the gap. An air filter element is installed on the air outlet of the protective cover.

[0009] In one possible implementation, the connecting plate has a connecting hole, which is threadedly connected to the second mounting hole.

[0010] In one possible implementation, the air inlet housing includes: A connecting base plate is provided with an air outlet window. The connecting base plate is also provided with a second threaded hole. The second threaded hole is circumferentially arranged on the outside of the air outlet window. The second threaded hole is connected to the first threaded hole by bolts. The top of the connecting base plate is connected to one side wall of the air inlet mesh. Four trapezoidal connecting plates are integrally formed on the top of the connecting base plate, and the side walls of adjacent trapezoidal connecting plates are connected to each other; The limiting frame is integrally formed on the top of the trapezoidal connecting plate, and the bottom of the limiting frame is connected to the other side wall of the air inlet mesh. The air intake filter element is detachably connected to the limiting frame.

[0011] In one possible implementation, the air outlet mechanism further includes guide fins, the root of which is integrally formed with the inner wall of the air outlet baffle, the free end of which faces the fan, the guide fins gradually taper from the root connected to the air outlet baffle towards the free end, and the guide fins are arranged in parallel at equal intervals along the inner wall of the air outlet baffle in the vertical direction.

[0012] This utility model has the following advantages: The robust structure, featuring a U-shaped mounting bracket and reinforcing ribs, suppresses fan vibration during operation, ensuring the equipment's reliability and stability over long-term use. The volute-type exhaust mechanism, working in conjunction with internal tapered guide fins, improves exhaust efficiency and reduces airflow noise. The combination of a double-layered shell structure and internal sound insulation further suppresses fan and airflow noise, creating a quieter operating environment. The trapezoidal air inlet design increases the effective air intake area, providing ample air supply to the purification system and, together with the dual filters at the inlet and outlet, enhances purification effectiveness. The tightly connected components result in a comprehensive improvement in stability, efficiency, and quietness. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0015] Figure 1 A perspective view of the air inlet and outlet device of a new air purification integrated machine provided by this utility model; Figure 2 A perspective view of the fan and mounting bracket provided by this utility model; Figure 3 A perspective view of the air inlet housing and air inlet filter element provided by this utility model; Figure 4 A cross-sectional view of the air inlet housing, air inlet filter element, and air inlet mesh provided by this utility model; Figure 5A perspective view of the air inlet housing provided by this utility model; Figure 6 A cross-sectional view of the air inlet casing provided for this utility model; Figure 7 A perspective view of the fixing frame provided by this utility model; Figure 8 A perspective view of the fixing frame body and reinforcing rib assembly provided by this utility model; Figure 9 A cross-sectional view of the air outlet mechanism provided by this utility model; In the diagram: 1. Air inlet housing; 11. Trapezoidal connecting plate; 12. Limiting frame; 13. Connecting base plate; 14. Second threaded hole; 2. Air outlet mechanism; 21. Protective cover; 22. Connecting plate; 23. Connecting shell; 24. Air outlet baffle; 25. Air outlet filter element; 26. Guide fins; 3. Fixing frame; 31. Fixing frame body; 32. Fan mounting hole; 33. First mounting hole; 34. Second mounting hole; 35. Reinforcing rib assembly; 4. Fan; 5. Air inlet filter element; 6. Air inlet baffle. Detailed Implementation

[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Please refer to Figures 1-9 The present invention will now describe the air inlet and outlet device of a fresh air purification integrated machine, as follows: Figures 1-4 It includes an air inlet housing 1, an air outlet mechanism 2, a fixing frame 3, a fan 4, an air inlet filter element 5, and an air inlet mesh 6. The fixing frame 3 has a U-shaped structure, and the fan 4 is inserted inside the fixing frame 3. The air outlet mechanism 2 has a volute-type double-layer structure, and the air outlet mechanism 2 is sleeved on the outside of the fan 4. The air outlet mechanism 2 is located above the fixing frame 3. The air inlet housing 1 has a frustum shape and is located above the air outlet mechanism 2. The air inlet mesh 6 has a frustum shape and is inserted inside the air inlet housing 1. There is a gap between the air inlet housing 1 and the air inlet mesh 6, and a sound insulation component is installed in the gap. The air inlet filter element 5 is installed at the air inlet end of the air inlet housing 1.

[0018] The mounting frame 3 serves as the base for the load-bearing device. It employs a U-shaped structure and uses welded reinforcing ribs to stably install and fix the fan 4, suppressing vibrations and ensuring long-term operation and service life of the equipment. The fan 4 is the power source of the device (preferably a centrifugal fan), responsible for driving the air circulation system.

[0019] Along the air outlet path, the volute-type double-layer structure of the air outlet mechanism 2 improves air outlet efficiency through the support of fluid dynamics, and enhances its noise isolation capability due to the sound insulation components installed in its internal interlayer. Its internal guide fins 26 further reduce wind pressure loss and noise pollution by streamlining turbulent vortices into smooth laminar flow, thus improving its efficiency.

[0020] In the air intake path, the frustum-shaped design of the air intake housing 1 and the air intake mesh 6 increases the air intake area, allowing it to draw in more air. Simultaneously, the sound insulation material (preferably sound insulation cotton) installed in the gap between them effectively reduces noise generated during air intake. The air intake filter 5 is located at the very front of the air intake, purifying the air drawn in by the device and effectively filtering out pollutants such as dust and pollen. It also reduces the burden on subsequent purification processes and ensures the cleanliness of the output air.

[0021] In a specific embodiment, such as Figure 7 and Figure 8 The fixing frame 3 includes a fixing frame body 31, a fan mounting hole 32, a first mounting hole 33, a second mounting hole 34, and a reinforcing rib assembly 35. The fixing frame body 31 has a fan mounting hole 32 extending through its upper and lower walls. The fan 4 is inserted into the fan mounting hole 32. The first mounting hole 33 extends through the upper and lower walls of the fixing frame body 31 and is circumferentially arranged outside the fan mounting hole 32. The first mounting hole 33 is connected to the fan 4. The second mounting hole 34 extends through the upper and lower walls of the fixing frame body 31 and is circumferentially arranged outside the first mounting hole 33. The second mounting hole 34 is connected to the air outlet mechanism 2. The reinforcing rib assembly 35 is installed at the bottom of the fixing frame body 31.

[0022] The mounting bracket body 31 is designed with a U-shaped structure, providing a stable installation foundation for the entire unit. The fan mounting holes 32 are used to accommodate and position the fan 4, while the first mounting holes 33 on the outer side of the circumferential array are connected to the fan 4 via bolts, achieving multi-point fixation and ensuring that the fan 4 will not shift due to vibration during operation. The second mounting holes 34 on the outer side of the first mounting holes 33 of the circumferential array are used for the fixed connection between the air outlet mechanism 2 and the mounting bracket 3. Furthermore, a reinforcing rib assembly 35 is welded to the bottom of the mounting bracket 3. The reinforcing rib assembly 35 can be arranged in a grid pattern or a star pattern, which improves the stability and fatigue resistance of the structure, preventing deformation of the mounting bracket 3 under long-term vibration. In summary, the fan 4, the mounting bracket 3, and the air outlet mechanism 2 are integrated into a single unit. These components collectively solve the problems of unstable fan fixation and easy loosening in existing technologies, ultimately achieving stable equipment operation and improving the overall reliability and service life of the machine.

[0023] In a specific embodiment, such as Figure 9The air outlet mechanism 2 includes a protective cover 21, a connecting plate 22, a connecting shell 23, an air outlet mesh 24, an air outlet filter element 25, and a first threaded hole 27. The protective cover 21 has a volute structure. An air inlet window is provided on the top of the protective cover 21 and is located above the fan 4. The connecting plate 22 extends from the bottom of the protective cover 21. The connecting shell 23 is integrally formed on the top of the protective cover 21 and surrounds the air inlet window. A first threaded hole 27 is provided on the connecting shell 23. The air outlet mesh 24 is inserted into the protective cover 21. One end of the air outlet mesh 24 is connected to the inner wall of the protective cover 21. A gap is formed between the air outlet mesh 24 and the protective cover 21. A sound insulation component is provided in the gap. The air outlet filter element 25 is installed on the air outlet of the protective cover 21.

[0024] The protective cover 21 adopts a volute structure, which guides airflow and reduces wind pressure loss, thereby improving air output efficiency. To ensure a stable connection of the overall structure, a connecting plate 22 is designed at the bottom of the protective cover 21. This plate is bolted to the second mounting hole 34 on the lower fixing bracket 3, ensuring the stability of the overall structure during fan operation through multi-point fixing. The connecting shell 23 is securely connected to the upper air inlet shell 1 through the first threaded hole 27, forming a complete and relatively sealed air duct system.

[0025] In terms of noise reduction, the air outlet mesh 24 and the protective cover 21 inside the air outlet mechanism 2 form a double-layer structure, and the gap between the two is used to install sound insulation components (preferably sound insulation cotton). This design can absorb the noise generated by the fan 4 during operation.

[0026] In terms of purification, the air outlet filter 25 installed on the protective cover 21 filters the relatively clean air output by the fan 4 again, ensuring that the exhaust air is cleaner and fresher.

[0027] In a specific embodiment, such as Figure 9 The connecting plate 22 has a connecting hole, which is threaded to the second mounting hole 34. The connecting hole and the second mounting hole 34 on the connecting plate 22 are connected by bolts or screws, and the air outlet mechanism 2 is stably connected to the fixed frame 3 by means of multiple fixing points.

[0028] In a specific embodiment, such as Figure 5 and Figure 6The air inlet housing 1 includes a trapezoidal connecting plate 11, a limiting frame 12, a connecting base plate 13, and a second threaded hole 14. The connecting base plate 13 has an air outlet window through it, and the connecting base plate 13 also has a second threaded hole 14 through it. The second threaded holes 14 are arranged circumferentially on the outside of the air outlet window. The second threaded holes 14 are connected to the first threaded hole 27 by bolts. The top of the connecting base plate 13 is connected to one side wall of the air inlet mesh 6. Four trapezoidal connecting plates 11 are integrally formed on the top of the connecting base plate 13. The side walls of adjacent trapezoidal connecting plates 11 are connected to each other. The limiting frame 12 is integrally formed on the top of the trapezoidal connecting plates 11. The bottom of the limiting frame 12 is connected to the other side wall of the air inlet mesh 6. The air inlet filter element 5 is detachably connected to the limiting frame 12.

[0029] The main body of the air inlet housing 1 is composed of four trapezoidal connecting plates 11. The trapezoidal design effectively increases the exposed area of ​​the air intake through the inwardly inclined sides, thereby allowing the air intake mechanism to draw in more air. The limiting frame 12 at the top of the trapezoidal connecting plate 11 assembly is used to accommodate the air intake filter 5, and one side wall of the air intake mesh 6 is welded to the bottom of the limiting frame 12. The connecting base plate 13 at the bottom of the trapezoidal connecting plate 11 assembly serves as the load-bearing component of the connecting structure. The other side wall of the air intake mesh 6 is welded to the top of the connecting base plate 13. The air outlet in the center of the connecting base plate 13 is aligned with the air inlet of the fan 4 below, forming a smooth gas delivery channel. The second threaded holes 14 arranged circumferentially on the outside of the air outlet are securely connected to the first threaded holes 27 on the top of the air outlet mechanism 2 by bolts. Through multi-point secure connection, a stable connection between the air inlet housing 1 and the air outlet mechanism 2 is achieved.

[0030] In a specific embodiment, such as Figure 9 The air outlet mechanism 2 also includes guide fins 26. The root of the guide fins 26 is integrally formed with the inner wall of the air outlet baffle 24. The free end of the guide fins 26 faces the fan 4. The guide fins 26 gradually shrink from the root connected to the air outlet baffle 24 to the free end. The guide fins 26 are arranged in parallel at equal intervals along the inner wall of the air outlet baffle 24 in the vertical direction.

[0031] The guide fins 26 streamline the airflow and optimize airflow noise. Specifically, the root of the guide fins 26 is integrally formed with the inner wall of the outlet baffle 24, ensuring a stable connection between the guide fins 26 and the outlet baffle 24. The free end of the guide fins 26 faces the fan 4, allowing its smooth curved surface to meet the high-speed airflow transmitted by the fan 4. The tapering design from the root to the free end creates a smooth, three-dimensional curved surface, which reduces airflow obstruction. These guide fins 26 are arranged parallel to each other at equal intervals along the inner wall of the outlet baffle 24 in the vertical direction, collectively forming the guide structure. During operation, the guide fins 26 cut and streamline the chaotic vortices output by the fan 4 into a fine laminar flow with consistent direction. This design not only reduces air pressure loss caused by airflow impact and improves airflow efficiency but also reduces airflow noise generated by vortices and turbulence.

[0032] The usage process of this utility model embodiment is as follows: When the equipment starts, the fan 4, supported by the fixed frame 3, begins to operate, generating suction. External air is first drawn in through the frustum-shaped inlet housing 1, where it undergoes initial filtration by the inlet filter 5 to remove most particulate pollutants. Subsequently, the relatively clean air is drawn into the fan 4's inlet through the outlet window connected to the base plate 13. After being pressurized by the fan 4, the air is sent into the volute-shaped outlet mechanism 2. Here, the airflow encounters guide fins 26, which cut and streamline the chaotic vortex into a relatively stable fluid, improving airflow efficiency and reducing airflow noise. As the air flows through the double-layer structure formed by the protective cover 21 and the outlet mesh 24, the internal sound-absorbing cotton further absorbs vibration noise generated by the fan 4's structure and residual airflow noise. Finally, the purified air passes through the outlet filter 25 for a second filtration before being smoothly delivered out.

[0033] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An air inlet and outlet device for a fresh air purification integrated machine, characterized in that, include: The fixing frame (3) has a U-shaped structure, and a fan (4) is inserted inside the fixing frame (3). The air outlet mechanism (2) has a volute-type double-layer structure. The air outlet mechanism (2) is sleeved on the outside of the fan (4) and is located above the fixed frame (3). The air inlet housing (1) is frustum-shaped and is located above the air outlet mechanism (2); An air inlet screen (6) is truncated pyramidal in shape and is inserted into the air inlet housing (1). A gap is provided between the air inlet housing (1) and the air inlet screen (6), and a sound insulation component is provided in the gap. An air inlet filter element (5) is installed at the air inlet end of the air inlet housing (1).

2. The air inlet and outlet device of the integrated fresh air purification unit as described in claim 1, characterized in that, The fixing frame (3) includes: The fixed frame body (31) has a fan mounting hole (32) through the upper and lower walls, and the fan (4) is inserted into the fan mounting hole (32); The first mounting hole (33) penetrates the upper and lower walls of the fixing frame body (31). The first mounting holes (33) are arranged circumferentially outside the fan mounting hole (32). The first mounting hole (33) is connected to the fan (4). The second mounting hole (34) penetrates the upper and lower walls of the fixed frame body (31). The second mounting holes (34) are arranged circumferentially outside the first mounting hole (33). The second mounting hole (34) is connected to the air outlet mechanism (2). The reinforcing rib assembly (35) is installed at the bottom of the fixing frame body (31).

3. The air inlet and outlet device of the integrated fresh air purification unit as described in claim 2, characterized in that, The air outlet mechanism (2) includes: The protective cover (21) has a volute structure. An air inlet window is provided on the top of the protective cover (21). The air inlet window is located above the fan (4). A connecting plate (22) extends from the bottom of the protective cover (21). The connecting shell (23) is integrally formed on the top of the protective cover (21). The connecting shell (23) surrounds the air inlet window and has a first threaded hole (27). An air outlet mesh (24) is inserted inside the protective cover (21). One top end of the air outlet mesh (24) is connected to the inner wall of the protective cover (21). A gap is formed between the air outlet mesh (24) and the protective cover (21). A sound insulation component is installed in the gap. An air outlet filter (25) is installed on the air outlet of the protective cover (21).

4. The air inlet and outlet device of the integrated fresh air purification unit as described in claim 3, characterized in that, The connecting plate (22) has a connecting hole, which is threadedly connected to the second mounting hole (34).

5. The air inlet and outlet device of the integrated fresh air purification unit as described in claim 3, characterized in that, The air inlet housing (1) includes: The connecting base plate (13) has an air outlet window through it. The connecting base plate (13) also has a second threaded hole (14) through it. The second threaded hole (14) is arranged circumferentially on the outside of the air outlet window. The second threaded hole (14) is connected to the first threaded hole (27) by bolts. The top of the connecting base plate (13) is connected to one side wall of the air inlet mesh (6). Four trapezoidal connecting plates (11) are integrally formed on the top of the connecting base plate (13), and the side walls of adjacent trapezoidal connecting plates (11) are connected to each other; The limiting frame (12) is integrally formed on the top of the trapezoidal connecting plate (11), and the bottom of the limiting frame (12) is connected to the other side wall of the air inlet mesh (6). The air intake filter (5) is detachably connected to the limiting frame (12).

6. The air inlet and outlet device of the integrated fresh air purification unit as described in claim 3, characterized in that, The air outlet mechanism (2) also includes guide fins (26). The root of the guide fins (26) is integrally formed with the inner wall of the air outlet baffle (24). The free end of the guide fins (26) faces the fan (4). The guide fins (26) gradually shrink from the root connected to the air outlet baffle (24) to the free end. The guide fins (26) are arranged in parallel at equal intervals along the inner wall of the air outlet baffle (24) in the vertical direction.

Images