Indoor air pollutant ventilation and exhaust device

Abstract

The utility model relates to the technical field of air ventilation and exhaust devices, in particular to an indoor air pollutant ventilation and exhaust device which comprises an exhaust hood, an axial flow fan is arranged on the exhaust hood, an installation shell is arranged at the bottom of the exhaust hood, a plurality of clamping blocks are evenly arranged at the top of the installation shell, and clamping grooves matched with the clamping blocks for use are formed in the bottom of the exhaust hood. A cavity is formed in the side wall of the mounting shell, a supporting rod, a sliding plate and an inserting rod are arranged in the side wall of the mounting shell through the cavity, the mounting shell is provided with an air guide plate and a first gear through a mounting shaft, and a first rack is arranged in the mounting shell through a sliding rail. According to the air exhaust device, the installation shell can be conveniently disassembled by workers, meanwhile, the installation quality of the installation shell is guaranteed, in addition, due to the quick disassembly type structure, the workers can conveniently conduct overhaul and daily maintenance work on the air exhaust device, and then the use efficiency of the air exhaust device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of air ventilation and exhaust devices, specifically an indoor air pollutant ventilation and exhaust device. Background Technology

[0002] With the development of modern society and the continuous improvement of people's living standards, people's requirements for the quality of indoor environment are increasing. In daily life and work, various air pollutants are generated indoors, such as formaldehyde, benzene compounds, volatile organic compounds, particulate matter, bacteria, and viruses. These pollutants come from a wide range of sources, including building decoration materials, furniture, office supplies, cooking activities, and human activities. Long-term exposure to a polluted indoor environment can have many adverse effects on human health, such as causing respiratory diseases, allergic reactions, cardiovascular diseases, and even cancer. In order to improve indoor air quality and protect people's health, ventilation and exhaust systems have emerged.

[0003] However, existing exhaust devices typically use screws for fixed connections. After prolonged use, these screws come into contact with moisture in the air, making them prone to rusting. This increases the workload during subsequent disassembly, hindering maintenance and repair. Furthermore, exhaust devices often have limited functionality; for example, the exhaust and intake angles of ordinary exhaust devices are relatively fixed, resulting in less than ideal exhaust and intake effects. They cannot adequately adapt to the needs of different indoor environments, have a small exhaust range, and are highly limited in their operation. Therefore, we propose an indoor air pollutant ventilation and exhaust device. Utility Model Content

[0004] The purpose of this invention is to provide an indoor air pollutant ventilation and exhaust device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes an exhaust hood, on which an axial flow fan is mounted; a mounting shell is located at the bottom of the exhaust hood; several locking blocks are evenly distributed at the top of the mounting shell; a slot for engaging with the locking blocks is located at the bottom of the exhaust hood; a cavity is provided inside the side wall of the mounting shell; a support rod is slidably disposed within the cavity; the support rod penetrates the side wall of the mounting shell and is slidably connected to it; a sliding plate is located at the end of the support rod; an insertion rod is disposed on the sliding plate; an insertion hole for engaging with the insertion rod is provided on the locking blocks; several mounting shafts are evenly rotated inside the mounting shell via bearings; air guide plates are disposed on the mounting shafts; a first gear is connected to the mounting shaft via a key; a slide rail is fixedly disposed on the rear inner wall of the mounting shell; a first rack is slidably disposed on the slide rail; and the first rack meshes with the first gear.

[0006] Preferably, the top of the exhaust hood is provided with a plurality of mounting rods evenly distributed, the top of the mounting rods is provided with mounting plates, and the exhaust pipe is provided at the air outlet end of the axial flow fan.

[0007] Preferably, a power shaft is rotatably arranged inside the rear side of the mounting housing, and a second gear is connected to the power shaft by a key. A second rack is also arranged on the side wall of the first rack, and the second rack meshes with the second gear.

[0008] Preferably, a return spring is sleeved on the outside of the support rod inside the cavity, with one end of the return spring connected to the inner wall of the cavity and the other end of the return spring connected to the slide plate.

[0009] Preferably, a self-locking motor is also provided inside the mounting housing, and the power output shaft of the self-locking motor is connected to the power shaft through a coupling.

[0010] Preferably, a handle is provided at the outer end of the support rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the quick-release structure formed by the sliding plate, the insert rod, the return spring, and the handle facilitates the disassembly of the mounting shell by the staff, while also ensuring the installation quality of the mounting shell. In addition, the quick-release structure also makes it easier for the staff to inspect and maintain the exhaust device, thereby ensuring the efficiency of the exhaust device. At the same time, under the action of the self-locking motor, the second gear, the second rack, the first rack, and the first gear, the angle of the air guide plate can be adjusted, which can dynamically adapt to different ventilation needs, optimize the indoor airflow distribution and pollutant discharge path. Meanwhile, under the action of the self-locking motor, the angle of the air guide plate after adjustment can be fixed, thereby ensuring the efficiency of the air guide plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a rear side view of the structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal components of the device of this utility model;

[0015] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0016] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0017] The components represented by each number in the attached diagram are listed below: 1. Exhaust hood; 2. Mounting rod; 3. Mounting plate; 4. Exhaust duct; 5. Axial flow fan; 6. Mounting housing; 601. Cavity; 7. Locking block; 8. Support rod; 9. Slide plate; 10. Insert rod; 11. Return spring; 12. Handle; 13. Mounting shaft; 14. Air guide plate; 15. First gear; 16. Slide rail; 17. First rack; 18. Power shaft; 19. Second gear; 20. Second rack; 21. Self-locking motor. Detailed Implementation

[0018] 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.

[0019] This utility model provides a technical solution: such as Figures 1-5 The indoor air pollutant ventilation and exhaust device shown includes an exhaust hood 1, a plurality of mounting rods 2 evenly arranged on the top of the exhaust hood 1, a mounting plate 3 arranged on the top of the mounting rods 2, a through hole arranged through the upper wall of the exhaust hood 1, an axial flow fan 5 arranged in the through hole, and an exhaust pipe 4 arranged at the air outlet of the axial flow fan 5. At this time, under the action of the axial flow fan 5, the exhaust hood 1 and the exhaust pipe 4, the function of ventilating and exhausting indoor air pollutants can be realized.

[0020] The exhaust hood 1 has a mounting shell 6 at its bottom, and several locking blocks 7 are evenly distributed on the top of the mounting shell 6. The exhaust hood 1 has a slot at its bottom that cooperates with the locking blocks 7. The mounting shell 6 has a cavity 601 inside its side wall, and a support rod 8 is slidably disposed in the cavity 601. The support rod 8 passes through the side wall of the mounting shell 6 and is slidably connected to the side wall of the mounting shell 6. The end of the support rod 8 has a sliding plate 9, and a plug rod 10 is disposed on the sliding plate 9. The locking blocks 7 have a plug hole that cooperates with the plug rod 10. With the help of the plug rod 10 and the plug hole, it is convenient to install and disassemble the mounting shell 6. A return spring 11 is sleeved on the outside of the support rod 8 inside the cavity 601. One end of the return spring 11 is connected to the inner wall of the cavity 601, and the other end of the return spring 11 is connected to the sliding plate 9. A handle 12 is disposed at the outer end of the support rod 8, and the plug rod 10 can be moved by the handle 12.

[0021] Inside the mounting housing 6, several mounting shafts 13 are evenly rotated via bearings. Air guide plates 14 are mounted on the mounting shafts 13, and a first gear 15 is connected to the mounting shafts 13 via a key. A slide rail 16 is fixedly mounted on the inner rear wall of the mounting housing 6, and a first rack 17 is slidably mounted on the slide rail 16. The first rack 17 and the first gear 15 mesh with each other. Under the action of the first rack 17 and the first gear 15, the angle of the air guide plate 14 can be adjusted, so that the ventilation and exhaust device can better meet the needs of actual use.

[0022] Inside the rear side of the mounting housing 6, a power shaft 18 is rotatably mounted. A second gear 19 is connected to the power shaft 18 via a key. A second rack 20 is also mounted on the side wall of the first rack 17. The second rack 20 meshes with the second gear 19. At this time, the power shaft 18, the second gear 19, and the second rack 20 can drive the first rack 17 to move on the slide rail 16, which in turn drives the mounting shaft 13 to rotate via the first gear 15, thereby adjusting the angle of the air guide plate 14. A self-locking motor 21 is also mounted inside the mounting housing 6. The power output shaft of the self-locking motor 21 is connected to the power shaft 18 via a coupling.

[0023] Working principle: When the device is started, the axial flow fan 5 operates, drawing in indoor air pollutants through the through-hole at the top of the exhaust hood 1. After being pressurized by the axial flow fan 5, the pollutants are discharged outdoors through the exhaust pipe 4, thus achieving the ventilation function. The bottom of the exhaust hood 1 is connected to the locking block 7 at the top of the mounting shell 6 via a slot. During installation, pressing the handle 12 causes the support rod 8 to slide along the cavity 601, compressing the return spring 11. This causes the sliding plate 9 to drive the insertion rod 10 out of the insertion hole of the locking block 7, completing the quick disassembly and assembly of the mounting shell 6. This facilitates the cleaning of the air guide plate 14 by the staff, thereby ensuring the efficiency of the air guide plate 14.

[0024] Inside the mounting housing 6, several mounting shafts 13 are rotatably mounted via bearings. Each mounting shaft 13 has a fixed air guide plate 14 and is connected to a first gear 15 via a key. A first rack 17, mounted on the rear inner wall of the mounting housing 6 via a slide rail 16, meshes with the first gear 15. When the first rack 17 moves, it drives the mounting shaft 13 to rotate and adjust the angle of the air guide plate 14. This movement is achieved via a power shaft 18: a self-locking motor 21 drives the power shaft 18 to rotate via a coupling. The second gear 19 on the power shaft 18 meshes with the second rack 20 on the side wall of the first rack 17, causing the first rack 17 to move back and forth along the slide rail 16. Thus, the angle of all air guide plates 14 is adjusted in a coordinated manner through the gear and rack transmission system, optimizing the airflow direction to adapt to different ventilation needs.

[0025] 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 process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for ventilating and exhausting indoor air pollutants, comprising an exhaust hood (1), characterized in that: The axial flow fan (5) is arranged on the exhaust hood (1), the bottom of the exhaust hood (1) is provided with a mounting shell (6), the top of the mounting shell (6) is uniformly provided with a plurality of clamping blocks (7), the bottom of the exhaust hood (1) is provided with a clamping groove matched with the clamping block (7), the inner wall of the mounting shell (6) is provided with a cavity (601), a supporting rod (8) is slidably arranged in the cavity (601), the supporting rod (8) penetrates through the side wall of the mounting shell (6) and is slidably connected with the side wall of the mounting shell (6), the end of the supporting rod (8) is provided with a sliding plate (9), the sliding plate (9) is provided with a plug rod (10), the clamping block (7) is provided with a plug hole matched with the plug rod (10), a plurality of mounting shafts (13) are uniformly rotatably arranged in the mounting shell (6) through bearings, a guide vane (14) is arranged on the mounting shaft (13), a first gear (15) is arranged on the mounting shaft (13) through a key connection, a slide rail (16) is fixedly arranged on the inner wall of the rear side of the mounting shell (6), a first gear rack (17) is slidably arranged on the slide rail (16), and the first gear rack (17) and the first gear (15) are intermeshed.

2. An indoor air pollutant ventilation exhaust device according to claim 1, wherein: The top of the exhaust hood (1) is uniformly provided with a plurality of mounting rods (2), and the top of the mounting rod (2) is provided with a mounting plate (3); the air outlet end of the axial flow fan (5) is provided with an exhaust pipe (4).

3. An indoor air pollutant ventilation exhaust device according to claim 2, wherein: The rear side of the mounting shell (6) is further rotatably provided with a power shaft (18), and a second gear (19) is arranged on the power shaft (18) through a key connection; a second gear rack (20) is further arranged on the side wall of the first gear rack (17), and the second gear rack (20) and the second gear (19) are intermeshed.

4. The indoor air pollutant ventilation exhaust device according to claim 1, wherein: The outer side of the supporting rod (8) is sleeved with a reset spring (11) in the cavity (601), one end of the reset spring (11) is connected with the inner wall of the cavity (601), and the other end of the reset spring (11) is connected with the sliding plate (9).

5. An indoor air pollutant ventilation exhaust device according to claim 1, wherein: The mounting shell (6) is further provided with a self-locking motor (21), and the power output shaft of the self-locking motor (21) is connected with the power shaft (18) through a shaft coupling.

6. An indoor air pollutant ventilation exhaust device according to claim 1, wherein: The outer end of the supporting rod (8) is provided with a handle (12).

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