Air purifier

Abstract

An air purifier comprises a shell as well as a filter and a wind wheel assembly which are arranged in the shell, and is characterized in that the filter and the wind wheel assembly are respectively arranged at the lower part and the upper part in the shell, and a hair scraping mechanism capable of scraping hair adsorbed on the outer surface of the filter is arranged in the shell and on one side of the filter; and a dust collection box is arranged below the bottom of the shell corresponding to the dehairing mechanism. When the filter rotates, hair sucked on the outer wall of the filter is scraped through the hair scraping mechanism, and the situation that the filter is blocked by the hair, and the filtering effect is affected is avoided; the hair scraping mechanism can adopt a scraping strip mode or a belt mode with a brush, hair can be automatically cleaned, the cleaned hair falls into a dust collection box, and cleaning is convenient; and the filter rotates by adopting the rolling disc, so that the rotation is more stable and is not easy to block. The hair filter is simple and reasonable in structure, capable of effectively cleaning hair adsorbed by the filter, convenient to mount and dismount and low in cost.

Description

TECHNICAL FIELD

[0001] The present application relates to purifier technology, in particular to an air purifier. BACKGROUND

[0002] The air purifier is also called air cleaner, air freshener, purifier, which can absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, formaldehyde and other decoration pollution, bacteria, allergens, etc.), effectively improve the air cleanliness. With the rapid development of modern industrial technology, air pollution is becoming more and more serious, and more and more families also use air purifiers. Especially for families with pets, the peculiar smell of pet excrement and dander is more in need of air purifiers. However, for pet-keeping families, "hairiness" is almost a "sweet and annoying" daily routine. The floating hair on the sofa, carpet, clothes, and even the air, and the floating hair sucked by the purifier when working will block the filter, not only affecting the purification effect, but also affecting the service life. Therefore, the market currently has air purifiers specially used for pets.

[0003] According to the investigation, the existing Chinese patent with the application number CN202421928636.8 "Intelligent air purifier for pets" includes a host and a filter installed at the lower end of the host. The host is provided with an air duct, and a fan is installed in the air duct. The upper end of the host is an air outlet communicated with the air duct, and the lower end is an air inlet communicated with the filter. The top of the host is installed with a control module, which includes a display screen, a wind speed adjusting button, a sterilization button, a breathing lamp button and a wireless communication button. Among them, the wind speed adjusting button can adjust the wind speed of the fan. The low wind speed can be used as a conventional air purification device to purify the air, and the high wind speed can absorb the floating animal hair in the air, which is convenient for users to adjust and use. The sterilization button is used to control the start of the ultraviolet sterilization lamp and the negative ion generator to sterilize the adsorbed animal hair and prevent the accumulation of bacteria for a long time. In addition, after the wireless communication button is started, the user can control the purifier through the mobile phone wirelessly, which is more convenient to use. This intelligent purifier can absorb hair and sterilize, but the absorbed hair will also block the filter, and the cost is also high. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an air purifier with simple and reasonable structure, good use effect, which can automatically clean the hair adsorbed on the outer surface of the filter and avoid hair blockage.

[0005] The technical scheme adopted by the present application to solve the above technical problems is: an air purifier, comprising a shell and a filter and a wind wheel assembly arranged in the shell, characterized in that: the filter and the wind wheel assembly are arranged in the middle lower part and the upper part of the shell respectively, a hair scraping mechanism capable of scraping the hair adsorbed on the outer surface of the filter is arranged on the side of the filter in the shell, and a dust collecting box is arranged at the bottom of the shell corresponding to the lower part of the hair scraping mechanism.

[0006] As an improvement, the shell is a cylindrical structure with an upper opening and a lower opening, the bottom of the shell is matched with a bottom cover, the side of the shell is provided with an air inlet hole, the filter is a cylindrical shape, the filter is rotatably arranged in the shell through a driving mechanism, the side of the shell is outwardly protruded to form a mounting cavity for mounting the hair scraping mechanism, the wind wheel assembly is mounted above the filter through a support, and an air outlet cover plate is arranged at the upper opening of the shell.

[0007] Further, the driving mechanism comprises a small motor, a driving gear and a rolling disc assembly, the mounting cavity in the shell is provided with a mounting seat for mounting the small motor at the upper end of the filter, the rolling disc assembly comprises an annular gear support, a ball, a ball support and a rolling disc fixing frame, the outer wall of the gear support is an annular tooth surface, the gear support is mounted on the upper end of the filter and connected with the filter, the ball and the ball support are sequentially arranged in the annular groove on the upper surface of the gear support and positioned through the rolling disc fixing frame, the driving gear is mounted at the lower end of the small motor, one end of the driving gear is engaged with the output gear of the small motor, and the other end is engaged with the gear support, when the small motor drives the driving gear to rotate, the gear support rotates, and further drives the filter to rotate.

[0008] Further, the hair scraping mechanism adopts a scraping strip assembly, the scraping strip assembly comprises a scraping strip, a scraping strip support and a scraping strip fixing member, the scraping strip is a strip-shaped soft rubber scraping strip, is mounted on the scraping strip support, and the scraping strip fixing member is vertically arranged in the mounting cavity, and the inner side surface of the scraping strip fixing member is provided with a strip-shaped groove for placing the scraping strip support.

[0009] Still further, the scraping strip support is a strip-shaped support with the same length as the scraping strip, the cross section of the scraping strip is T-shaped, the front side of the scraping strip support is formed with a T-shaped groove along the length direction for positioning the scraping strip, and the rear side of the scraping strip support is protrudingly provided with a spring column, a spring is sleeved on the spring column and abuts against the scraping strip fixing member to support, so that the scraping strip has a tendency of always abutting against the outer wall of the filter.

[0010] Furthermore, the scraping mechanism adopts a brush belt assembly, which includes a brush belt, a fixed frame, a first driven wheel, and a second driven wheel. The fixed frame is vertically installed in the mounting cavity on one side of the driving gear. The first driven wheel and the second driven wheel are respectively installed at the upper and lower ends of the front side of the fixed frame. The upper surface of the gear bracket is also provided with a ring gear that meshes with the first driven wheel. The first driven wheel and the second driven wheel are driven by the brush belt. When the small motor drives the driving gear to rotate, the gear bracket rotates accordingly, thereby driving the filter and the first driven wheel to rotate. The first driven wheel drives the second driven wheel to rotate through the brush belt.

[0011] Furthermore, the impeller assembly is coaxially arranged above the filter. The impeller assembly includes an impeller and an impeller motor. The impeller motor is installed above the impeller. The air outlet cover is detachably fitted and installed at the upper opening of the outer casing.

[0012] Furthermore, the wind turbine assembly has a duct component, and the wind turbine motor is fixed inside the duct component by a motor bracket.

[0013] Finally, the dust collection box is shaped like a bucket, with an opening at the bottom of one side of the mounting cavity of the outer shell for inserting and removing the dust collection box, and a handle for easy manual handling is recessed at the bottom of the outer end face of the dust collection box.

[0014] Compared with existing technologies, the advantages of this invention are as follows: A scraping mechanism is incorporated, which scrapes away hair adsorbed on the outer wall of the filter as it rotates, preventing hair from clogging the filter and affecting its filtration efficiency. The scraping mechanism can employ a scraping strip or a belt with a brush, automatically cleaning the hair, which then falls into the dust collection box for easy cleaning. The filter rotates using a rolling disc, resulting in smoother rotation and reducing the risk of jamming. This invention has a simple and reasonable structure, effectively cleaning the hair adsorbed by the filter, and is easy to install and disassemble at a low cost, making it particularly suitable for pet-owning households. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0016] Figure 2 for Figure 1 Exploded view;

[0017] Figure 3 for Figure 1 A longitudinal sectional view;

[0018] Figure 4 This is a schematic diagram of the structure of Embodiment 1 of the present invention after removing the outer shell and the wind turbine assembly;

[0019] Figure 5 This is an exploded view of the structure of the rolling disk assembly in Embodiment 1 of the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0021] Figure 7 This is a longitudinal sectional view of Embodiment 2 of the present invention;

[0022] Figure 8 This is a schematic diagram of the structure of Embodiment 2 of the present invention after removing the outer shell and the wind turbine assembly;

[0023] Figure 9 This is an exploded view of the shaving assembly of Embodiment 2 of the present invention;

[0024] Figure 10 This is an exploded view of the structure of the rolling disk assembly in Embodiment 2 of the present invention. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] like Figures 1-5 As shown, an air purifier includes a housing 1 and a filter 2 and a fan assembly disposed within the housing 1. The filter 2 and the fan assembly 3 are respectively disposed in the lower middle part and the upper part of the housing 1. A hair-scraping mechanism is installed on the outer surface of the filter 2 inside the housing 1 to scrape off the hair adsorbed on the outer wall of the filter 2. A dust collection box 30 is installed at the bottom of the housing 1 corresponding to the lower part of the hair-scraping mechanism.

[0028] The specific structure is as follows: the outer shell 1 is a cylindrical structure with openings at the top and bottom. The bottom cover 10 is fixed to the bottom of the outer shell 1. The side of the outer shell 1 is provided with a long strip-shaped air inlet hole 11. The filter 2 is cylindrical. The filter 2 is rotatably installed inside the outer shell 1 by a drive mechanism. In the lower middle part of the outer shell 1, one side of the outer shell 1 protrudes outward to form an installation cavity 12 for the installation of the scraping mechanism. The impeller assembly 3 is installed above the filter 2 by a bracket. An air outlet cover 20 is provided at the upper opening of the outer shell 1.

[0029] The driving mechanism comprises a small motor 8, a driving gear 9 and a rolling disc assembly 7. The small motor 8 is arranged in the mounting cavity 12 of the shell 1 and is arranged on the upper end of the filter 2. The rolling disc assembly 7 comprises an annular gear support 71, a ball 72, a ball support 73 and a rolling disc fixing frame 74. The outer wall of the gear support 71 is an annular tooth surface. The gear support 71 is arranged on the upper end of the filter 2 and is in driving connection with the filter 2. The ball 72 and the ball support 73 are sequentially arranged in the annular groove on the upper surface of the gear support 71 and are fixed by the rolling disc fixing frame 74. The rolling disc assembly 7 makes the filter 2 rotate more stably and is not easy to be stuck. The driving gear 9 is arranged on the lower end of the small motor 8. One end of the driving gear 9 is in engagement with the output gear of the small motor 8 and the other end is in engagement with the gear support 71. When the small motor 8 drives the driving gear 9 to rotate, the gear support 71 rotates and drives the filter 2 to rotate.

[0030] The scraping mechanism of the embodiment adopts a scraping strip assembly 5. The scraping strip assembly 5 comprises a scraping strip 51, a scraping strip support 52 and a scraping strip fixing member 53. The scraping strip 51 is a strip-shaped soft rubber. The scraping strip 51 is arranged on the scraping strip support 52. The scraping strip fixing member 53 is vertically arranged in the mounting cavity 12. The inner side of the scraping strip fixing member 53 is provided with a strip-shaped groove for arranging the scraping strip support 52. The scraping strip support 52 is a strip-shaped support with the same length as the scraping strip 51. The cross section of the scraping strip 51 is T-shaped. A T-shaped groove 521 is formed on the front side of the scraping strip support 52 along the length direction for positioning the scraping strip 51. A spring column is protrusively arranged on the rear side of the scraping strip support 52. A spring 54 is arranged on the spring column and is in abutment with the scraping strip fixing member 53 to support the scraping strip 51, so that the scraping strip 51 always abuts against the outer wall of the filter 2 to achieve zero gap.

[0031] The wind wheel assembly 3 is coaxially arranged above the filter 2. The wind wheel assembly 3 comprises a wind wheel 32, a wind wheel motor 31 and a wind channel component 33. The wind wheel motor 31 is fixed in the wind channel component 33 by a motor support 34 and is arranged above the wind wheel 32. The air outlet cover plate 20 is detachably arranged on the upper opening position of the shell 1.

[0032] The dust collecting box 30 is in the shape of a dustpan. An opening 14 is arranged on one side of the bottom of the mounting cavity 12 of the shell 1 for arranging and taking out the dust collecting box 30. A handle opening is concavely arranged on the bottom of the outer end surface of the dust collecting box 30 for facilitating manual taking.

[0033] In addition, the shape of the shell 1 is not limited to a cylindrical shape, but can also be other similar columnar structures.

[0034] The working principle is that the wind wheel motor 3 drives the wind wheel 32 to rotate, so that the hair is sucked to the surface of the filter 2, the small motor 8 drives the driving gear 9 to rotate, the gear support 71 rotates, and the filter 2 rotates; the surface of the filter 2 has a rough filter layer that blocks the hair on the surface, the scraping strip 51 is attached to the outer surface of the filter 2 through the spring 54, when the filter 2 rotates, the hair cannot pass through the filter and is accumulated together by the scraping strip, and when the weight reaches a certain value, the hair falls into the dust collecting box 30 at the bottom, and the garbage can be poured out by pulling out the dust collecting box 30.

[0035] Embodiment 4

[0036] As shown in FIG. 1, an air purifier comprises a filter 2, a driving gear 9, a gear support 71, a scraping strip 51, a small motor 8, a wind wheel 32, a wind wheel motor 3, a dust collecting box 30, a mounting cavity 12, and a rolling disc assembly 7. Figures 6-10 The difference between the air purifier and the embodiment 1 is that the hair scraping mechanism adopts a brush belt assembly 6, the brush belt assembly 6 comprises a brush belt 61, a fixing frame 64, a first driven gear 62, and a second driven gear 63, the fixing frame 64 is vertically arranged in the mounting cavity 12 and located on one side of the driving gear 9, the first driven gear 62 and the second driven gear 63 are respectively arranged on the upper and lower ends of the front side of the fixing frame 64, the upper surface of the gear support 71 of the rolling disc assembly 7 is additionally provided with an annular gear 710 engaged with the first driven gear 62, the first driven gear 62 and the second driven gear 63 are driven through the brush belt 61, when the small motor 8 drives the driving gear 9 to rotate, the gear support 71 rotates, and the filter 2 and the first driven gear 62 rotate, the first driven gear 62 drives the second driven gear 63 to rotate through the brush belt 61.

[0037] The working principle is that the wind wheel motor 3 drives the wind wheel 32 to rotate, so that the hair is sucked to the surface of the filter 2, the small motor 8 drives the driving gear 9 to rotate, the gear support 71 rotates, and the filter 2 and the first driven gear 62 rotate, the first driven gear 62 drives the second driven gear 63 to rotate through the brush belt 61. The surface of the filter 2 has a rough filter layer that blocks the hair on the surface, the brushes on the belt are attached to the outer surface of the filter 2 in a zero gap state during operation, when the filter 2 rotates, the hair cannot pass through the filter 2 and is continuously scraped down by the brush belt 61, and falls into the dust collecting box 30 at the bottom, and the garbage can be poured out by pulling out the dust collecting box 30.

[0038] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the technical principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An air purifier, comprising a housing and a filter and impeller assembly disposed within the housing, characterized in that: The filter and impeller assembly are respectively located in the lower middle and upper parts of the housing. Inside the housing, on one side of the filter, there is a hair scraping mechanism that can remove hair adsorbed on the outer surface of the filter. At the bottom of the housing, corresponding to the area below the hair scraping mechanism, there is a dust collection box.

2. The air purifier according to claim 1, characterized in that: The outer shell is a cylindrical structure with openings at the top and bottom. The bottom of the outer shell is fitted with a bottom cover, and the side of the outer shell is provided with an air inlet. The filter is cylindrical and is rotatably installed inside the outer shell by a drive mechanism. One side of the outer shell protrudes outward to form an installation cavity for the scraping mechanism. The impeller assembly is installed above the filter by a bracket, and an air outlet cover is provided at the upper opening of the outer shell.

3. The air purifier according to claim 2, characterized in that: The drive mechanism includes a small motor, a drive gear, and a rolling disk assembly. A mounting base for the small motor is provided inside the housing's mounting cavity at the upper end of the filter. The rolling disk assembly includes an annular gear bracket, balls, a ball bracket, and a rolling disk fixing frame. The outer wall of the gear bracket has an annular toothed surface. The gear bracket is mounted on the upper end of the filter and connected to it. The balls and ball bracket are sequentially arranged in an annular groove on the upper surface of the gear bracket and positioned by the rolling disk fixing frame. The drive gear is mounted at the lower end of the small motor. One end of the drive gear meshes with the output gear of the small motor, and the other end meshes with the gear bracket. When the small motor drives the drive gear to rotate, the gear bracket rotates accordingly, thereby driving the filter to rotate.

4. The air purifier according to claim 3, characterized in that: The shaving mechanism uses a shaving strip assembly, which includes a shaving strip, a shaving strip bracket, and a shaving strip fixing component. The shaving strip is a strip-shaped soft rubber, which is installed on the shaving strip bracket. The shaving strip fixing component is vertically set in the mounting cavity, and the inner side of the shaving strip fixing component is provided with a strip-shaped groove for the shaving strip bracket to be inserted.

5. The air purifier according to claim 4, characterized in that: The scraper support is a strip-shaped support with the same length as the scraper. The cross-section of the scraper is T-shaped. The front side of the scraper support has a T-groove formed along the length direction for the scraper to be inserted and positioned. The rear side of the scraper support has a protruding spring column. A spring is sleeved on the spring column and supports the scraper fixing component, so that the scraper has a tendency to always move forward and abut against the outer wall of the filter.

6. The air purifier according to claim 3, characterized in that: The scraping mechanism uses a brush belt assembly, which includes a brush belt, a fixed frame, a first driven wheel, and a second driven wheel. The fixed frame is vertically installed in the mounting cavity on one side of the drive gear. The first driven wheel and the second driven wheel are respectively installed at the upper and lower ends of the front side of the fixed frame. The upper surface of the gear bracket is additionally provided with a ring gear that meshes with the first driven wheel. The first driven wheel and the second driven wheel are driven by the brush belt. When the small motor drives the drive gear to rotate, the gear bracket rotates accordingly, thereby driving the filter and the first driven wheel to rotate. The first driven wheel drives the second driven wheel to rotate through the brush belt.

7. The air purifier according to any one of claims 2 to 6, characterized in that: The impeller assembly is coaxially positioned above the filter. The impeller assembly includes an impeller and an impeller motor. The impeller motor is mounted above the impeller. The air outlet cover is detachably fitted and positioned at the upper opening of the outer casing.

8. The air purifier according to claim 7, characterized in that: The wind turbine assembly has a duct component, and the wind turbine motor is fixed inside the duct component by a motor bracket.

9. The air purifier according to any one of claims 1 to 6, characterized in that: The dust collection box is shaped like a bucket, and an opening is provided at the bottom of one side of the mounting cavity of the outer shell for inserting and removing the dust collection box. A handle is recessed at the bottom of the outer end face of the dust collection box for easy manual handling.

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