Indoor air purifier

Abstract

The present invention relates to the technical field of air purification, and specifically discloses an indoor air purifier, comprising: a shell, a filter belt, an activated carbon component, a support component, a cleaning rod and a limiting component. The filter belt is horizontally arranged in an annular shape in the shell, the front and rear ends of the filter belt abut against the inner wall of the shell, the filter belt and the shell are surrounded to form a containing cavity, the activated carbon component is arranged between the filter belt and the air outlet, the activated carbon component further purifies the air after preliminary purification, the cleaning rod can scrape impurities on the inner surface of the filter belt when the support component rotates, and the limiting component is arranged in the shell for retracting and releasing the annular filter belt. An indoor air purifier of the present invention uses an annular filter belt to perform initial purification first to prevent the problem of easy clogging of the air purifier caused by excessive smoke and dust, and uses the cleaning rod to collect and clean impurities on the surface of the filter belt to solve the problem of frequent cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to an indoor air purifier. Background Art

[0002] As people's living standards improve, the requirements for indoor environmental comfort and health are growing. In pursuit of energy saving and airtightness, modern buildings have led to poor indoor air circulation and accumulation of various pollutants. Volatile organic compounds such as formaldehyde and benzene released by decoration materials, as well as odors emitted by furniture and detergents, and even microorganisms and dust, seriously threaten human health. Long-term exposure to polluted indoor air can cause respiratory diseases, allergic reactions, nervous system damage and other health problems.

[0003] In order to solve these problems, indoor air purification technology came into being. Although traditional air purification methods such as opening windows for ventilation are simple and easy, they are limited by weather, environment and other factors and cannot continuously and effectively purify the air. Activated carbon adsorption has a certain effect on some pollutants, but it is easy to saturate and needs to be replaced frequently. Photocatalyst technology uses photocatalytic reactions to decompose pollutants, but it has strict requirements on lighting conditions and may have the risk of secondary pollution. The air purifiers currently on the market generally consist of three parts, namely the filter component, activated carbon filter and fan.

[0004] A Chinese patent application document with publication number CN118274405A discloses an indoor air purification device, including a box body, a sterilization chamber and a dust collecting chamber located below the sterilization chamber, an air intake port is provided at the top of the dust collecting chamber, an air guide hood is installed above the air intake port, side chambers are provided on both sides of the box body, an opening and closing door is hingedly installed on one side of the dust collecting chamber, and also includes: a filter assembly, the filter assembly includes a cylindrical frame, the central axis of the cylindrical frame is horizontally arranged in the dust collecting chamber and below the air intake port, a filter cloth is arranged on the outside of the cylindrical frame, an air intake hood and a strip air duct arranged below the air intake hood are arranged inside the cylindrical frame, a third pipeline is arranged between the air intake hood and the sterilization chamber to connect the two, and a rotating assembly for axially rotating the cylindrical frame is arranged in one of the side chambers.

[0005] In the related art, when purifying indoor air, it is necessary to purify the fresh air from the outside and transport it indoors to improve the indoor air quality. However, when the external environment is poor, the outside air contains a large amount of particles, smoke and other impurities, which can easily cause the filter components to become blocked and unable to continue working during air purification. Existing purifiers need to be frequently disassembled for cleaning. Summary of the invention

[0006] The present invention provides an indoor air purifier, aiming to solve the technical problem in the related art that when fresh air from the outside needs to be purified and transported indoors, the filter assembly is easily clogged and cannot continue to work because the outside air contains a large amount of impurities such as particles and smoke, and the machine needs to be frequently disassembled for cleaning.

[0007] An indoor air purifier of the present invention comprises a shell, an air inlet and an air outlet arranged on the shell, an activated carbon component is arranged in the shell, and also comprises a filter belt, the filter belt is horizontally arranged in the shell in an annular shape, the front and rear ends of the filter belt abut against the inner wall of the shell, a limit assembly is arranged on the inner wall of the shell, the limit assembly limits the filter belt to rotate relative to the shell, the filter belt and the shell are surrounded to form a accommodating cavity, the accommodating cavity is communicated with the air inlet, a support assembly, the support assembly is arranged in the filter belt, the support assembly supports the filter belt, the support assembly rotates around its own axis in the filter belt, the support assembly also comprises a hollow cleaning rod, the cleaning rod is provided with a scraping port, a discharging port and a blowing port, the scraping port is arranged on a side of the cleaning rod that is close to the filter belt, the blowing port is arranged on a side of the cleaning rod that is away from the scraping port, the aperture of the blowing port is smaller than the diameter of the impurities, the discharging port is arranged at one end of the cleaning rod, when the cleaning rod is located at the bottom end of the filter belt, the discharging port is directly opposite to the sewage outlet arranged on the shell, and the sewage outlet is provided with an opening and closing assembly for controlling the sewage outlet to be opened or closed.

[0008] By setting up an annular filter belt and a cleaning rod, when the external environment is poor, the annular filter belt is used for initial purification to reduce the smoke content in the air and prevent the problem of excessive smoke and dust causing the air purifier to be easily blocked. When impurities accumulate on the surface of the filter belt, the cleaning rod is used to collect and clean the impurities on the surface of the filter belt to solve the problem that the air purifier is easily blocked and needs frequent cleaning.

[0009] Preferably, the support assembly includes a plurality of support rods and two drive frames, the two drive frames are coaxially rotatably arranged on the shell, a plurality of support rods are arranged on the drive frame around the rotation axis of the drive frame, and the front and rear ends of the filter belt abut against the inner wall of the shell. By setting the support assembly and making the front and rear ends of the filter belt abut against the inner wall of the shell, a sealed accommodating chamber is formed between the supported filter belt and the shell, so that the initially purified gas can be subjected to the pressure of the fan, thereby accelerating the purification speed.

[0010] Preferably, the cleaning rod is arranged between any two support rods, and the cleaning rod and multiple support rods are arranged on the driving frame at equal intervals. When the driving frame rotates, the scraping port scrapes impurities on the inner wall of the filter belt, and the impurities are collected in the hollow part of the cleaning rod and discharged from the sewage outlet. By arranging the cleaning rod and multiple support rods at equal intervals, when the support rods rotate, the cleaning rod can evenly scrape impurities on the inner surface of the filter belt, and the scraped impurities can be quickly collected in the hollow part of the cleaning rod.

[0011] Preferably, the limit assembly includes a unwinding rod, a reeling rod and two clamping rods, the unwinding rod is rotatably arranged inside the shell, the reeling rod is rotatably arranged inside the shell, the filter belt is passed from the unwinding rod around multiple support rods and a cleaning rod to the reeling rod, and the two clamping rods are rotatably arranged on the shell, the two clamping rods are abutted against the support rod close to one side of the limit assembly, so that the filter belt located between the two clamping rods is tightly attached, and by setting the limit assembly, the filter belt can be adjusted so that the position will not change during cleaning, and the reeling rod and the unwinding rod are arranged so that the filter belt can be quickly replaced when the filter belt is damaged, so as to reduce the problem of dismantling the machine to replace the filter belt.

[0012] Preferably, the sewage outlet is arranged on the shell, and a collecting bag is connected to the sewage outlet. The collecting bag is capable of collecting impurities collected on the cleaning rod, and the collecting bag is breathable to prevent the problem of poor collection due to high air pressure in the collecting bag.

[0013] Preferably, the opening and closing component is a solenoid valve, which can control the opening or closing of the sewage outlet according to the state of the cleaning rod. The solenoid valve is arranged to control the opening or closing of the sewage outlet according to the state of the impurities collected by the cleaning rod, so that remote operation can be performed when cleaning impurities, and manual operation is no longer required.

[0014] Preferably, a filter is provided on the air outlet, and the filter holes of the filter and the filter belt have the same diameter. The filter is laid on one side of the air outlet, and when the surface of the filter belt is cleaned, impurities fall into the hollow part of the cleaning rod and the air outlet is blocked by the filter to prevent impurities from leaking out of the air outlet. The filter can also be used to ensure that when the impurities on the cleaning rod are collected, the wind can pass through the filter and then carry the impurities on the cleaning rod to be discharged from the sewage outlet.

[0015] Preferably, a driving source 1 is provided on the shell, and the driving source 1 is used to rotate the driving frame.

[0016] Preferably, the contact portion between the scraper port and the filter belt is made of a flexible material. By setting the contact portion between the scraper port and the filter belt to be flexible, the problem of the filter belt being easily damaged such as being snagged when the scraper port cleans the filter belt can be effectively reduced, thereby increasing the service life of the filter belt.

[0017] Preferably, both ends of the support rod are rotatably set on the driving frame, the surface of the support rod is smooth, the support rod is rotatably set on the driving frame, and a smooth material is provided on the surface of the support rod, which effectively solves the problem of impurities easily adhering to the surface of the support rod when it rotates around the filter belt.

[0018] The beneficial effects of the present invention are:

[0019] 1. By setting up an annular filter belt and a cleaning rod, when the external environment is poor, the annular filter belt is used to perform initial purification of the air to reduce the smoke content in the air and prevent excessive smoke and dust impurities from causing the air purifier to be easily blocked. In addition, by setting up a cleaning rod, when impurities accumulate on the surface of the filter belt, the impurities on the surface of the filter belt are collected and cleaned to solve the problem that the air purifier is easily blocked and needs frequent cleaning.

[0020] 2. By setting up a supporting component, the annular filter belt is supported, and it will not be deformed during filtering, causing the filtering to fail. The front and rear ends of the filter belt are in contact with the inner wall of the shell, so that the supported filter belt and the shell are surrounded to form a sealed accommodating chamber, so that the initially purified gas can be subjected to the pressure of the fan, thereby accelerating the purification speed.

[0021] 3. By setting the limit assembly, the filter belt will not change position during cleaning. The reeling rod and unreeling rod can be set to quickly replace the filter belt when it is damaged, so as to reduce the number of times the machine is disassembled to replace the filter belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the air purifier of the present invention.

[0023] Figure 2 It is a cross-sectional view of the air purifier of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the filter belt of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the limiting component of the present invention.

[0026] Figure 5 It is a schematic structural diagram of the support assembly of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the cleaning rod of the present invention.

[0028] Figure 7 It is a cross-sectional view of a cleaning rod of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the sewage outlet of the present invention.

[0030] Reference numerals:

[0031] 1. Shell; 11. Air inlet; 12. Air outlet; 13. Sewage outlet; 14. Opening and closing assembly; 2. Filter belt; 3. Activated carbon assembly; 4. Support assembly; 41. Support rod; 42. Drive frame; 5. Cleaning rod; 51. Scraping port; 52. Discharge port; 53. Air outlet; 6. Limiting assembly; 61. Unwinding rod; 62. Rewinding rod; 63. Clamping rod. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] like Figures 1 to 5 and Figure 8 As shown, an indoor air purifier of the present invention comprises: a shell 1, a filter belt 2, an activated carbon component 3, a support component 4, a cleaning rod 5 and a limit component 6. The shell 1 is provided with an air inlet 11 and an air outlet 12 at the front and rear ends. The filter belt 2 is horizontally arranged in the shell 1 in an annular shape. The front and rear ends of the filter belt 2 abut against the inner wall of the shell 1. The filter belt 2 and the shell 1 are surrounded by a receiving cavity, and the receiving cavity is connected with the air inlet 11. The air to be purified enters the receiving cavity from the air inlet 11 and is initially purified by the annular filter belt 2 to remove larger impurities in the air. The activated carbon component 3 is arranged between the filter belt 2 and the air outlet The activated carbon component 3 further purifies the air after preliminary purification, removes volatile organic compounds and various odors in the air to improve the air quality. The support component 4 is arranged in the annular filter belt 2. The support component 4 supports the filter belt 2 in an annular shape. The support component 4 can rotate around its own axis in the filter belt 2. The support component 4 includes a hollow cleaning rod 5. The cleaning rod 5 can scrape impurities on the inner surface of the filter belt 2 when the support component 4 rotates. The limit assembly 6 is arranged in the shell 1, and is used to retract and release the annular filter belt 2 to achieve the purpose of replacing the filter belt 2 without disassembling the machine.

[0034] like Figures 4 to 6 As shown, the support assembly 4 includes a plurality of support rods 41 and two drive frames 42, the two drive frames 42 are coaxially rotatably arranged on the shell 1, and a plurality of support rods 41 are rotatably arranged on the drive frames 42 around the axes of the drive frames 42. A driving source 1 is arranged on the shell 1, and the driving source 1 is preferably a motor. The driving source 1 is fixedly arranged on the shell 1, and the output shaft of the driving source 1 drives the two drive frames 42 to rotate around their own axes. When the drive frames 42 rotate, the support rods 41 are also driven to rotate. Both ends of the support rods 41 are rotatably arranged on the drive frames 42, and the support rods 41 can rotate relative to the drive frames 42. When the drive frames 42 rotate, the support rods 41 rotate relative to the filter belt 2 without damaging the filter belt 2. A layer of smooth medium is arranged on the surface of the support rods 41 to reduce the adhesion of impurities on the support rods 41 when the support rods 41 rotate along the filter cloth. The smooth medium is preferably a metal film.

[0035] like Figures 5 to 7As shown, the support assembly 4 also includes a hollow cleaning rod 5, which is arranged between any two supporting rods 41, and the cleaning rod 5 and the multiple supporting rods 41 are arranged on the driving frame 42 at equal intervals. When the driving frame 42 rotates, the cleaning rod 5 and the multiple supporting rods 41 rotate synchronously with the driving frame 42, and both ends of the cleaning rod 5 are fixedly arranged on the driving frame 42. The cleaning rod 5 is provided with a scraping port 51, a discharging port 52 and an air blowing port 53. The scraping port 51 is arranged on the side where the cleaning rod 5 is close to the filter belt 2, and the air blowing port 53 is arranged on the cleaning rod 5. On the side of the cleaning rod 5 away from the scraping port 51, the end face of the cleaning rod 5 away from the air inlet 11 is provided with a discharge port 52, and the discharge port 52 is connected with the hollow part of the cleaning rod 5. When the cleaning rod 5 is located at the bottom end of the filter belt 2, the discharge port 52 is directly opposite to the sewage outlet 13 provided on the shell 1, and the sewage outlet 13 is provided with an opening and closing component 14 for controlling the opening or closing of the sewage outlet 13. The opening and closing component 14 is preferably a solenoid valve. When there are many impurities in the cleaning rod 5, the solenoid valve controls the sewage outlet 13 to open, and a collecting bag is connected to the outside of the sewage outlet 13.

[0036] like Figure 6 and Figure 7 As shown, the opening direction of the scraper port 51 on the cleaning rod 5 is toward the movement direction of the cleaning rod 5. When the cleaning rod 5 moves, the scraper port 51 is located at the rear side wall in the movement direction and abuts against the filter belt 2. When the cleaning rod 5 rotates with the driving frame 42, the rear side wall of the scraper port 51 scrapes off the impurities on the surface of the filter belt 2, and the scraped impurities are collected in the hollow part of the cleaning rod 5. The rear side wall of the scraper port 51 is made of flexible material, preferably rubber material, to reduce the damage to the filter belt 2 caused by scraping impurities. A filter screen is arranged on the surface of the blowing port 53, and the diameter of the filter screen hole is the same as that of the filter belt 2. The impurities scraped off the surface of the filter belt 2 are collected in the cleaning rod 5 and will not leak out from the blowing port 53.

[0037] like Figures 2 to 4 As shown, the limit assembly 6 includes a unwinding rod 61, a reeling rod 62 and two clamping rods 63. The unwinding rod 61 is rotatably arranged in the shell body 1, and the reeling rod 62 is rotatably arranged in the shell body 1. The filter belt 2 passes through the unwinding rod 61 around multiple support rods 41 to the reeling rod 62. The two clamping rods 63 are rotatably arranged on the shell body 1. The two clamping rods 63 are abutted against the support rod 41 close to the side of the limit assembly 6. When the support rod 41 rotates with the driving frame 42, the support rod 41 does not interfere with the clamping rod 63. The two support rods 41 make the filter belt 2 between them tightly attached.

[0038] like Figures 2 to 3 As shown, the activated carbon component 3 is arranged in the shell 1, and the activated carbon component 3 is arranged between the annular filter belt 2 and the air outlet 12. After the air to be purified passes through the annular filter belt 2 for preliminary purification, it passes through two activated carbon nets to adsorb volatile organic compounds and various odors in the air, thereby achieving the purpose of further purifying the air.

[0039] The implementation principle of the embodiment of the present invention is as follows: the air to be purified enters the fan through the air inlet 11, and then enters the filter chamber formed by the annular filter belt 2 and the shell 1 after passing through the fan. The gas is initially purified by the filter belt 2, and the particles and dust carried in the air fall on the inner wall of the filter belt 2. The air purified by the filter belt 2 passes through two layers of activated carbon nets in turn. The activated carbon nets adsorb volatile organic compounds and various odors contained in the air and are then discharged from the air outlet 12. After long-term use, a large amount of impurities will adhere to the surface of the filter belt 2, causing blockage. When the driving source is started to rotate the driving frame 42, the scraper port 51 on the cleaning rod 5 will collect the impurities on the filter belt 2 into the cleaning port during the movement along the filter belt 2. In the hollow chamber of the sorting rod 5, after the cleaning rod 5 rotates one circle to complete the cleaning of the inner surface of the filter belt 2, the cleaning rod 5 is located at the bottom end of the filter belt 2, and the discharge port 52 arranged on the cleaning rod 5 is aligned with the sewage outlet 13 on the shell 1, and the solenoid valve arranged on the sewage outlet 13 controls the sewage outlet 13 to open. After the air in the filter cavity passes through the filter screen on the blowing port 53, the air carries the impurities in the cleaning rod 5 and blows into the collecting bag connected to the outside of the sewage outlet 13, the gas is discharged from the collecting bag, and the impurities are collected by the collecting bag. When the service life of the filter belt 2 reaches the limit, the unwinding rod 61 cooperates with the winding rod 62 to replace the filter belt 2 on the supporting assembly 4 to reduce the number of times the filter belt 2 needs to be disassembled for cleaning or replacement.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An indoor air purifier, comprising a housing (1), an air inlet (11) and an air outlet (12) arranged on the housing (1), an activated carbon component (3) arranged in the housing (1), characterized in that: Also includes: A filter belt (2), the filter belt (2) being arranged horizontally in an annular shape inside the housing (1), the front and rear ends of the filter belt (2) being in contact with the inner wall of the housing (1), a limit assembly (6) being arranged on the inner wall of the housing (1), the limit assembly (6) limiting the filter belt (2) from rotating relative to the housing (1), the filter belt (2) and the housing (1) together forming a receiving cavity, the receiving cavity being in communication with the air inlet (11); A support assembly (4), the support assembly (4) being arranged in the filter belt (2), the support assembly (4) supporting the filter belt (2), the support assembly (4) rotating around its own axis in the filter belt (2), the support assembly (4) further comprising a hollow cleaning rod (5), the cleaning rod (5) being provided with a scraping port (51), a discharge port (52) and an air blowing port (53), the scraping port (51) being arranged on a side of the cleaning rod (5) which is in close contact with the filter belt (2), The blowing port (53) is arranged on a side of the cleaning rod (5) away from the scraping port (51); the aperture of the blowing port (53) is smaller than the diameter of the impurities; the discharge port (52) is arranged at one end of the cleaning rod (5); when the cleaning rod (5) is located at the bottom end of the filter belt (2), the discharge port (52) is directly opposite to the sewage discharge port (13) arranged on the shell (1); and the sewage discharge port (13) is provided with an opening and closing component (14) for controlling the opening or closing of the sewage discharge port (13).

2. An indoor air purifier according to claim 1, characterized in that: The support assembly (4) comprises a plurality of support rods (41) and two drive frames (42); the two drive frames (42) are coaxially rotatably arranged on the housing (1); and the plurality of support rods (41) are arranged on the drive frames (42) around the rotation axis of the drive frames (42).

3. An indoor air purifier according to claim 2, characterized in that: The cleaning rod (5) is arranged between any two supporting rods (41), and the cleaning rod (5) and the plurality of supporting rods (41) are arranged on the driving frame (42) at equal intervals. When the cleaning rod (5) rotates on the driving frame (42), the scraping port (51) scrapes impurities on the inner wall of the filter belt (2), and the impurities are collected in the hollow part of the cleaning rod (5) and discharged from the sewage outlet (13).

4. An indoor air purifier according to claim 1, characterized in that: The limit assembly (6) comprises a reeling rod (61), a reeling rod (62) and two clamping rods (63); the reeling rod (61) is rotatably arranged inside the housing (1); the reeling rod (62) is rotatably arranged inside the housing (1); the filter belt (2) is passed from the reeling rod (61) around a plurality of support rods (41) and a cleaning rod (5) to the reeling rod (62); the two clamping rods (63) are rotatably arranged on the housing (1); the two clamping rods (63) are abutted against the support rod (41) on one side close to the limit assembly (6), so that the filter belt (2) located between the two clamping rods (63) is tightly attached.

5. The indoor air purifier according to claim 1, characterized in that: The sewage outlet (13) is arranged on the housing (1), and a collection bag is connected to the sewage outlet (13).

6. An indoor air purifier according to claim 1, characterized in that: The opening and closing component (14) is a solenoid valve, which can control the sewage outlet (13) to open or close according to the state of the cleaning rod (5).

7. An indoor air purifier according to claim 3, characterized in that: The air outlet (53) is provided with a filter screen, and the filter screen and the filter belt (2) have the same filter hole diameter.

8. An indoor air purifier according to claim 2, characterized in that: A driving source 1 is provided on the housing (1), and the driving source 1 is used to rotate the driving frame (42).

9. An indoor air purifier according to claim 7, characterized in that: The contact portion between the scraper opening (51) and the filter belt (2) is made of a flexible material.

10. An indoor air purifier according to claim 2, characterized in that: Both ends of the support rod (41) are rotatably mounted on the driving frame (42), and the surface of the support rod (41) is smooth.

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