A new air conversion device for air purifier

Abstract

The utility model discloses a kind of air purifier fresh air conversion devices, it is related to purifier technical field, including air duct body, the air duct body includes connecting ring, the fixed pipe is fixed in the connecting ring one side, the fixed pipe one side is fixed with valve seat, the filter cavity is fixed in the valve seat two sides.This device provided by the utility model is driven valve flap rotation by motor, reducer, cooperate the air outlet, air return and mixed air duct opened on valve seat, can flexibly realize the multi-airflow path switching of fresh air, air return and mixed air, while the activated carbon layer fixed in filter cavity can directional adsorption pollutant in airflow, solve the problem that traditional single air duct switching device can only be on-off conversion, cannot adapt to different indoor and outdoor pollutant type, make purification process more targeted.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, specifically to a fresh air conversion device for an air purifier. Background Technology

[0002] Existing air purifier fresh air conversion devices mostly use a single air duct switching structure, which can only switch between fresh and return air. It cannot adjust the airflow purification path according to the differences in indoor and outdoor pollutant types, resulting in insufficient targeted purification. Furthermore, during duct switching, airflow can easily form vortex dead zones at corners, where accumulated pollutants may diffuse with the airflow, causing secondary pollution. In addition, the fixed airflow guidance structure of traditional conversion devices cannot adapt to changes in airflow velocity under different operating conditions, making it difficult to balance purification efficiency and airflow delivery effect. Utility Model Content

[0003] In view of the problems existing in the current air purifier fresh air conversion device, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a fresh air conversion device for an air purifier, which solves the problem of insufficient purification targeting due to the inability to adjust the airflow purification path according to the differences in the types of pollutants indoors and outdoors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An air purifier fresh air conversion device includes an air duct body. The air duct body includes a connecting ring. A fixed pipe is fixedly provided on one side of the connecting ring. A valve seat is fixedly provided on one side of the fixed pipe. Filter chambers are fixedly provided on both sides of the valve seat. A valve flap is fixedly provided inside the valve seat. A reducer is fixedly provided on one side of the valve seat. A motor is fixedly provided on one side of the reducer. The output end of the motor is fixedly connected to the valve flap. An air outlet duct, a return air duct, and a mixing air duct are fixedly provided on three adjacent side walls of the valve seat. The two sides of the filter chamber are fixedly connected to the air outlet duct and the fixed pipe, respectively.

[0006] Preferably, a first bevel gear is fixedly provided on the outer side of the motor output end, a second bevel gear is meshed on one side of the first bevel gear, a rotating shaft is fixedly provided on one side of the second bevel gear, and two guide fan blades are fixedly provided on the shaft wall of the rotating shaft.

[0007] Preferably, a support rod is rotatably provided on one side of the guide fan blade, and one end of the support rod is fixedly connected to the inner wall of the air outlet duct.

[0008] Preferably, a sealing gasket is fixedly provided on the outer side of the valve disc.

[0009] Furthermore, the inner wall of the connecting ring is fixedly provided with an internal thread.

[0010] Preferably, an activated carbon layer is fixedly provided inside the filter chamber.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model uses a motor and reducer to drive the valve disc to rotate. With the air outlet, return air and mixing air ducts opened on the valve seat, it can flexibly switch between multiple airflow paths of fresh air, return air and mixed air. At the same time, the activated carbon layer fixed in the filter chamber can directionally adsorb pollutants in the airflow. This solves the problem that traditional single air duct switching devices can only switch on and off and cannot adapt to different types of indoor and outdoor pollutants, making the purification process more targeted.

[0012] 2. In this utility model, the motor output end drives the rotating shaft and the guide fan blades to rotate actively through the meshing of the first bevel gear and the second bevel gear. Combined with the stable support of the guide fan blades by the support rod, it can actively guide the airflow direction in the duct, effectively eliminating the dead zone of vortex at the corner of the duct caused by the fixed airflow direction in traditional devices. This avoids the secondary pollution caused by the diffusion of pollutants accumulated in the dead zone with the airflow, while improving the airflow delivery efficiency and taking into account both purification effect and airflow.

[0013] 3. In this utility model, the sealing gasket fixed on the outside of the valve disc can fit tightly against the inner wall of the valve seat, reducing the leakage of unpurified airflow and ensuring the purity of the purified airflow. The internal thread design on the inner wall of the connecting ring facilitates quick docking of the conversion device with the main body of the air purifier, reducing installation difficulty. In addition, the support rod for the guide fan blades and the fixed connection between the fixing pipe and the connecting ring further enhance the overall structural stability of the device, reduce the loosening of parts during long-term use, and extend the service life of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A; Figure 3 This is a three-dimensional structural diagram of the guide vane of this utility model; Figure 4 This is a three-dimensional structural diagram of the driving component of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Air duct body; 2. Connecting ring; 3. Fixing pipe; 4. Valve seat; 5. Filter chamber; 6. Valve disc; 7. Reducer; 8. Motor; 9. Air outlet duct; 10. Air return duct; 11. Mixing duct; 12. First bevel gear; 13. Second bevel gear; 14. Rotating shaft; 15. Guide fan blade; 16. Support rod; 17. Sealing gasket; 18. Internal thread; 19. Activated carbon layer. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model discloses a fresh air conversion device for an air purifier.

[0019] This utility model provides, for example Figure 1-4An air purifier fresh air conversion device shown includes a duct body 1, which includes a connecting ring 2. A fixing pipe 3 is fixedly mounted on one side of the connecting ring 2, and a valve seat 4 is fixedly mounted on one side of the fixing pipe 3. Filter chambers 5 are fixedly mounted on both sides of the valve seat 4. A valve disc 6 is fixedly mounted inside the valve seat 4. A reducer 7 is fixedly mounted on one side of the valve seat 4, and a motor 8 is fixedly mounted on one side of the reducer 7. The output end of the motor 8 is fixedly connected to the valve disc 6. An air outlet duct 9, a return air duct 10, and a mixing air duct 11 are fixedly mounted on three adjacent side walls of the valve seat 4. The filter chambers 5 are fixedly connected to the air outlet duct 9 and the fixing pipe 3 on both sides, respectively. The air purifier first passes through the internal thread of the connecting ring 2 on the inner side wall of the duct body 1. Line 18 allows for quick and stable docking and fixing of the fresh air conversion device with the main body of the air purifier, completing the integration of the device and the purifier system. This lays the foundation for subsequent airflow treatment and purification. After the device is started, the motor 8 outputs power, which, after being reduced and adjusted by the reducer 7, drives the valve disc 6 inside the valve seat 4 to rotate stably. The sealing gasket 17 on the outside of the valve disc 6 tightly fits against the inner wall of the valve seat 4 to prevent airflow leakage during switching. Through the rotation of the valve disc 6, different air ducts can be selectively connected. When fresh air needs to be treated, the fresh airflow enters the fixed pipe 3 through the connecting ring 2 and then flows into the valve seat 4. The valve disc 6 rotates to the corresponding passage, allowing the fresh airflow to enter the filter chambers 5 on both sides of the valve seat 4. The airflow is filtered... Inside the chamber 5, a fixed activated carbon layer 19 adsorbs pollutants in the airflow, purifying it. The purified airflow then flows from the filter chamber 5 into the outlet duct 9 and is finally delivered to the room. When return air needs to be treated or mixed air circulation needs to be achieved, the return airflow enters the valve seat 4 from the return air duct 10. The valve disc 6 rotates to switch to the return air passage or the mixing passage, allowing the return airflow to directly enter the mixing duct 11, or to mix with the airflow purified by the filter chamber 5 in the valve seat 4 before entering the mixing duct 11, meeting the airflow circulation requirements under different working conditions. While the motor 8 drives the valve disc 6 to rotate, the output end of the motor 8 synchronously drives the first bevel gear 12 fixed on the outside to rotate. The second bevel gears 13 mesh with each other. The rotation of the first bevel gear 12 drives the second bevel gear 13 to rotate synchronously, which in turn drives the rotating shaft 14, which is fixedly connected to the second bevel gear 13, to rotate. The two guide fan blades 15 on the shaft wall of the rotating shaft 14 rotate together with the rotating shaft 14. One side of the guide fan blade 15 is rotatably connected to the inner wall of the air outlet 9 through the support rod 16. The support rod 16 provides stable support for the guide fan blade 15 to prevent it from deviating during high-speed rotation. The rotation of the guide fan blade 15 plays an active guiding role in the airflow in the air duct, eliminating the vortex dead zone formed by the airflow at the corner of the air duct, improving the airflow delivery efficiency, and ensuring that the purified airflow can be delivered to the target area smoothly and quickly.

[0020] In order to drive the guide vane 15, such as Figure 4As shown, a first bevel gear 12 is fixedly provided on the outer side of the output end of the motor 8, a second bevel gear 13 is meshed on one side of the first bevel gear 12, a rotating shaft 14 is fixedly provided on one side of the second bevel gear 13, and two guide fan blades 15 are fixedly provided on the shaft wall of the rotating shaft 14.

[0021] To facilitate the support of the bead guide vanes, such as Figure 3 As shown, a support rod 16 is rotatably provided on one side of the guide fan blade 15, and one end of the support rod 16 is fixedly connected to the inner wall of the air outlet duct 9.

[0022] In order to seal valve seat 4, such as Figure 2 As shown, a sealing gasket 17 is fixedly provided on the outer side of the valve disc 6.

[0023] Finally, for easier filtering, such as Figure 1 As shown, the inner wall of the connecting ring 2 is fixedly provided with an internal thread 18, and the filter chamber 5 is fixedly provided with an activated carbon layer 19.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air purifier fresh air conversion device, comprising an air duct body (1), characterized in that, The air duct body (1) includes a connecting ring (2), a fixed pipe (3) is fixedly provided on one side of the connecting ring (2), a valve seat (4) is fixedly provided on one side of the fixed pipe (3), a filter chamber (5) is fixedly provided on both sides of the valve seat (4), a valve disc (6) is fixedly provided inside the valve seat (4), a reducer (7) is fixedly provided on one side of the valve seat (4), a motor (8) is fixedly provided on one side of the reducer (7), the output end of the motor (8) is fixedly connected to the valve disc (6), an air outlet duct (9), a return air duct (10) and a mixing air duct (11) are fixedly provided on the three adjacent side walls of the valve seat (4), and the filter chamber (5) is fixedly connected to the air outlet duct (9) and the fixed pipe (3) on both sides respectively.

2. The fresh air conversion device for an air purifier according to claim 1, characterized in that, A first bevel gear (12) is fixedly provided on the outer side of the output end of the motor (8), a second bevel gear (13) is meshed on one side of the first bevel gear (12), a rotating shaft (14) is fixedly provided on one side of the second bevel gear (13), and two guide fan blades (15) are fixedly provided on the shaft wall of the rotating shaft (14).

3. The fresh air conversion device for an air purifier according to claim 2, characterized in that, The guide fan blade (15) is provided with a support rod (16) on one side, and one end of the support rod (16) is fixedly connected to the inner wall of the air outlet duct (9).

4. The fresh air conversion device for an air purifier according to claim 1, characterized in that, A sealing gasket (17) is fixedly provided on the outside of the valve disc (6).

5. The fresh air conversion device for an air purifier according to claim 1, characterized in that, The inner wall of the connecting ring (2) is fixedly provided with an internal thread (18).

6. The fresh air conversion device for an air purifier according to claim 1, characterized in that, An activated carbon layer (19) is fixedly provided inside the filter chamber (5).

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