An air purifier capable of sucking oil fumes

Abstract

An air purifier capable of sucking cooking fumes, comprising a housing, a motor impeller assembly and a filter. A cover plate assembly is provided at the upper end of the housing. The cover plate assembly is a hollow structure that is in communication with the housing. The right side of the cover plate assembly is rotatably connected to the housing horizontally by 360° or 180° and can move up and down at a certain distance. An air inlet is provided at a position near the right side of the upper surface of the cover plate assembly. A push-pull upper cover is provided at the air inlet. An oil fume inlet is provided on the left side of the lower surface of the cover plate assembly. An air outlet is provided on the left side of the housing. The motor impeller assembly is arranged in the housing near the air outlet. The filter is vertically arranged in the housing and on the right side of the motor impeller assembly. A condensation telescopic bracket connected to the cover plate assembly is provided at the upper right end inside the housing. An oil pan is provided directly below the condensation telescopic bracket at the bottom of the housing. The structure of the present invention is simple and reasonable, with a small volume, convenient and flexible to use, having both air purification and cooking fume suction functions, and the two functions can be conveniently switched according to needs.

Description

Technical Field

[0001] The present invention relates to the technology of air purifiers, and particularly to an air purifier capable of sucking cooking fumes. Background Art

[0002] An air purifier, also known as an "air cleaner", air freshener, or purifier, refers to a product that can adsorb, decompose, or transform various air pollutants (generally including PM2.5, dust, pollen, odors, decoration pollution such as formaldehyde, bacteria, allergens, etc.), and effectively improve the air cleanliness. With the rapid development of modern industrial technology, air pollution has become increasingly serious, and more and more families are using air purifiers.

[0003] Most of the existing air purifiers do not have the function of sucking cooking fumes. When stir-frying in the kitchen, the cooking fumes are usually discharged from the room through a range hood. However, the range hood is often fixed and cannot be easily moved, making its use less flexible and convenient. In modern life, cooking is not necessarily carried out on a gas stove; it can also be done in an air fryer, an electric cooker, etc. These appliances also generate cooking fumes, and if not purified in time, it will also affect people's physical health.

[0004] Upon investigation, the existing Chinese patent with the patent number CN201320537683.5, "A Range Hood with an Air Purifier", includes a range hood body. The body includes an air inlet, an air outlet, and a mounting plate. The air inlet and the air outlet are connected to form an exhaust passage. A power supply, a circulation fan, a sterilization device, an electrostatic dust removal device, an air filtration device, a computer display screen, and a switch connected to the power supply through integrated components are provided on the mounting plate. The air filtration device is arranged inside the air inlet, the fan is arranged inside the air outlet, the electrostatic dust removal device is installed between the circulation fan and the air outlet, and the sterilization device is installed between the air filtration device and the circulation fan. The air filtration device is an air purifier. This range hood has the function of purifying air, but its shape is the same as that of a traditional range hood and is also fixed above the gas stove, unable to move, and can only purify the cooking fumes on the gas stove, and cannot effectively purify the cooking fumes in other places. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an air purifier capable of sucking cooking fumes with a simple and reasonable structure and convenient and flexible use in view of the above technical status.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows: An air purifier capable of sucking oil fumes includes a housing, in which a motor impeller assembly and a filter are provided. It is characterized in that: a cover plate assembly is provided at the upper end of the housing. The cover plate assembly is a hollow structure communicating with the housing. The right side of the cover plate assembly is rotatably connected to the housing horizontally by 360° or 180° and can move up and down a certain distance. An air inlet is provided at a position near the right side of the upper surface of the cover plate assembly. An upper cover that can be pushed and pulled is provided at the air inlet. An oil fume inlet is provided on the lower surface of the left side of the cover plate assembly. An air outlet is provided on the left side of the housing. The motor impeller assembly is arranged in the housing near the air outlet. The filter is arranged in the housing and on the right side of the motor impeller assembly. A condensation telescopic frame connected to the cover plate assembly is provided at the upper right end in the housing. An oil pan is provided at the bottom of the housing and below the condensation telescopic frame. When the purifier is in the air purification mode, the upper cover is opened, air enters the housing from the air inlet of the cover plate assembly, and the purified air is discharged from the air outlet on the left side of the housing. When the purifier is in the oil fume purification mode, the upper cover is closed, the cover plate assembly is rotated above the cooking utensil, oil fumes enter the housing from the oil fume inlet, the condensed oil drops into the oil pan, and the purified air is discharged from the air outlet on the left side of the housing.

[0007] As an improvement, the housing is a cylindrical structure with an open bottom. A bottom cover is provided in alignment with the lower opening of the housing. The cover plate assembly is rotatably and alignably arranged on the top cover of the housing. The condensation telescopic frame is cylindrical. A circular hole for installing the condensation telescopic frame is opened on the right side of the top cover. A circular hole corresponding to the circular hole is provided on the lower surface of the right side of the cover plate assembly. One end of the condensation telescopic frame is fixedly connected to the circular hole of the top cover in a positioning manner, and the other end is connected to the circular hole of the cover plate assembly. The cover plate assembly can move up and down a certain distance through the condensation telescopic frame and is rotatably connected to the housing horizontally by 360° or 180° through the condensation telescopic frame.

[0008] Further improvement, the condensation telescopic frame is a telescopic cylinder structure composed of three inner and outer cylinders. The specific structure is as follows: The upper end of the outer cylinder is provided with an outer edge that turns outward and fits and abuts against the circular hole of the top cover for fixation and an inner edge that turns inward. The lower end of the middle cylinder is provided with a flange that turns outward and is limited in cooperation with the inner edge at the upper end of the outer cylinder. The upper end of the middle cylinder is provided with a limiting flange that turns inward. The lower end of the inner cylinder is provided with a flange that turns outward and fits and abuts against the limiting flange at the upper end of the middle cylinder. The upper end of the inner cylinder turns outward to form a connecting ring that is connected to the circular hole of the cover plate assembly in a matching manner. When the condensation telescopic frame is unfolded, a positioning structure is provided between the three inner and outer cylinders.

[0009] Furthermore, the oil fume inlet on the lower surface of the cover plate assembly is inclined downward. A primary filter screen is installed at the oil fume inlet. A detachable oil collecting box is provided at the bottom of the left side of the cover plate assembly and is connected to the left side of the primary filter screen.

[0010] Further, a plurality of connecting columns are provided on the inner wall of the lower end of the housing, and corresponding counterbores are provided on the bottom cover. The bottom cover is oppositely arranged at the lower end of the housing and fixed by screws.

[0011] Furthermore, the left side inside the housing is formed into an installation cavity for installing the motor wind wheel assembly, and the motor wind wheel assembly is fixed in the installation cavity through a bracket.

[0012] Furthermore, the filter is two groups of filter meshes. A fixing plate is provided at the middle right position above the inner bottom cover of the housing. A positioning groove for inserting and positioning the lower ends of the two groups of filter meshes is formed on the fixing plate.

[0013] Furthermore, the oil stain box is detachably arranged on the fixing plate. There is a fixing seat frame for the oil stain box on the fixing plate. Lugs extending outwards are provided on the front and rear sides of the bottom of the fixing seat frame of the oil stain box. Corresponding connection holes are provided on the fixing plate. The fixing seat frame of the oil stain box is positioned and fixed by screws through the cooperation of the lugs and the connection holes. The fixing seat frame allows the oil stain box to be pulled in and out in a drawable manner, and there is a snap fit between the two.

[0014] Further, a take-out opening for facilitating the removal and cleaning of the oil stain box is provided at the right side of the lower end of the housing corresponding to the position of the oil stain box.

[0015] Finally, a concave part for facilitating manual upward stretching is provided at the right end of the cover plate assembly, and a concave surface for facilitating manual rotation is provided on the left side of the upper surface of the cover plate assembly.

[0016] Compared with the prior art, the advantages of the present invention are as follows: A rotatable and liftable cover plate assembly is provided at the top of the housing. An air inlet and an oil fume inlet are provided on the cover plate assembly, and the cover plate assembly can be rotated according to needs to switch between two modes; A condensation telescopic frame is provided inside the housing, which facilitates the up and down lifting of the cover plate assembly and cools the oil fume at the same time; A primary filter mesh is provided at the oil fume inlet, which can filter the oil fume before it enters the housing. The structure of the present invention is simple and reasonable, small in size, convenient and flexible to use, and has both air purification and oil fume absorption functions, and the two functions can be conveniently switched according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the external structure of an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the structure of an embodiment of the present invention after removing the housing;

[0019] Figure 3 is an exploded view of an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of the structure of an embodiment of the present invention in the air purification mode;

[0021] Figure 5For Figure 4 Top view of

[0022] Figure 6 Schematic structural view of an embodiment of the present invention in the oil fume extraction mode;

[0023] Figure 7 For Figure 6 Top view of

[0024] Figure 8 Schematic structural view of an embodiment of the present invention in another oil fume extraction mode. Detailed implementation manners

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

[0026] As Figures 1 to 8 shown, an oil fume extractable air purifier includes a housing 1, a cover plate assembly 2, and a motor impeller assembly 5, a condensation telescopic frame 7, a filter 6, and an oil box 8 disposed inside the housing 1. The housing 1 is a cylindrical structure with a lower opening, a semicircular cross-section on the right side, and a rectangular cross-section on the left side. A bottom cover 4 is disposed in alignment with the lower opening of the housing 1. The top cover 3 of the housing 1 is integrally connected to the housing, corresponding to the top. The cover plate assembly 2 is a hollow structure and is rotatably and vertically movably disposed in alignment on the top cover 3, that is, it is basically attached to the top cover 4. The condensation telescopic frame 7 is cylindrical. A circular hole for installing the condensation telescopic frame 7 is opened on the right side of the top cover 3. A circular hole corresponding to the circular hole is provided on the lower surface of the right side of the cover plate assembly 2. One end of the condensation telescopic frame 7 is fixedly connected to the circular hole of the top cover 3, and the other end is connected to the circular hole of the cover plate assembly 2. In this way, the cover plate assembly 2 can move up and down a certain distance through the condensation telescopic frame 7, and is horizontally rotatably connected to the housing 1 by 360° or 180° through the condensation telescopic frame 7. Usually, 360° is preferably selected to enable the cover plate assembly 2 to rotate. The cover plate assembly 2 is a hollow structure communicating with the housing 1. An air inlet 21 is provided at a position near the right side of the upper surface of the cover plate 2. A push-pull upper cover 10 is provided at the air inlet 21. An oil fume inlet 25 is provided on the lower surface of the left side of the cover plate assembly 2. An air outlet 11 is provided on the left side of the housing 1. The motor impeller assembly 5 is disposed inside the housing 1 near the air outlet 11. The filter 6 is vertically disposed inside the housing 1 and on the right side of the motor impeller assembly 5. The oil box 8 is disposed at the bottom inside the housing 1 and directly below the condensation telescopic frame 7. The oil fume inlet 25 on the lower surface of the cover plate assembly 2 is inclined downward. A primary filter screen 20 is installed at the oil fume inlet 25 through a wire mesh 24. A detachable oil collecting box 30 is provided at the bottom left of the cover plate 2 and connected to the left side of the primary filter screen 20.

[0027] The condensation telescopic frame 7 is a telescopic cylinder structure composed of three inner and outer cylinders. The specific structure is as follows: The upper end of the outer cylinder 71 is provided with an outer edge that turns outward and abuts and fixes with the round hole of the top cover 3, and an inner edge that turns inward. The lower end of the middle cylinder 72 is provided with a flange that turns outward and is limited by the inner edge at the upper end of the outer cylinder 71. The upper end of the middle cylinder 72 is provided with a limiting flange that turns inward. The lower end of the inner cylinder 73 is provided with a folded edge that turns outward and abuts with the limiting flange at the upper end of the middle cylinder 72. The upper end of the inner cylinder 73 turns outward to form a connecting ring that is connected and matched with the circular hole of the bottom plate of the cover plate assembly 2. The right end of the cover plate assembly 2 is provided with a recess 22 that is convenient for manual upward stretching. When the cover plate 2 is stretched upward, the condensation telescopic frame 7 extends upward accordingly, and a positioning structure is provided between the three inner and outer cylinders. Of course, the condensation telescopic frame 7 is not limited to the telescopic cylinder structure composed of three inner and outer cylinders, and can be two, four, etc.

[0028] The oil fume inlet on the lower surface of the cover plate assembly 2 is inclined downward, and a primary filter screen 20 is installed at the oil fume inlet. A grease collecting box 30 is provided at the left bottom of the cover plate assembly 2.

[0029] A plurality of connecting columns are provided on the inner wall at the lower end of the housing 1, and corresponding counterbores are provided on the bottom cover 3. The bottom cover 3 is oppositely arranged at the upper and lower ends of the housing and fixed by screws. The left side inside the housing 1 is formed into an installation cavity for installing the motor impeller assembly 5, and the motor impeller assembly 5 is fixed in the installation cavity by a bracket. The filter 6 is a two-group filter screen. A fixing plate 9 is provided at a position in the middle and on the right side above the bottom cover 3 inside the housing 1. A positioning groove for inserting and positioning the lower ends of the two-group filter screen is formed on the fixing plate 9; the oil stain box 8 is provided in a pull-out manner on the fixing plate 9. There is a fixing seat frame 80 for the oil stain box 8 on the fixing plate 9. The front and rear sides of the bottom of the fixing seat frame 80 of the oil stain box 8 are provided with outward-extending lugs. Corresponding connection holes are provided on the fixing plate 9. The fixing seat frame 80 of the oil stain box 8 is positioned and fixed by screws through the cooperation of the lugs and the connection holes. The fixing seat frame 80 allows the oil stain box 8 to be pulled out and inserted, and there is a snap-fit between the two. A take-out opening 12 for conveniently taking out and cleaning the oil stain box 8 is provided at the right lower end of the housing 1 corresponding to the position of the oil stain box 8. A concave surface 23 for conveniently manual rotation is provided on the left side of the upper surface of the cover plate assembly 2.

[0030] When the purifier is in the air purification mode, as Figure 4 、 5 shown, the upper cover 10 is opened, air enters the housing 1 from the air inlet 21 of the cover plate assembly 2, and the purified air is discharged from the air outlet 11 on the left side of the housing 1 after being filtered by the filter 6. The flow direction of the air is as shown by the arrow.

[0031] When the purifier is in the oil fume purification mode, as Figure 6 、 7As shown, the cooking utensil is an air fryer nest a, with the upper cover 10 closed. The cover plate assembly 2 is rotated above the air fryer nest a. The rising cooking fumes enter the cover plate assembly 2 through the primary filter screen 20 via the cooking fume inlet. Since there is a cooking fume inlet 25 on the lower surface of the cover plate 2 and the cooking fume inlet is arranged obliquely, the primary filter screen 20 is installed through the wire mesh frame 24. Part of the condensed oil stains flow down along the inclined surface into the oil collecting box 30. The cooking fumes enter the housing 1 along the condensation telescopic frame 7. The condensed oil stains drip into the oil stain box 8. The purified air is discharged from the air outlet 11 on the left side of the housing 1. The flow direction of the cooking fumes is as shown by the arrow.

[0032] Figure 8 It is also the cooking fume purification mode. The cooking utensil is a steamer b, with the upper cover 10 closed. Since the steamer b is relatively high, the cover plate assembly 2 is stretched upward. The cover plate 2 is rotated above the steamer b. The rising cooking fumes enter the cover plate assembly 2 through the primary filter screen 20 via the cooking fume inlet. Since there is a cooking fume inlet 25 on the lower surface of the cover plate assembly 2 and the cooking fume inlet is arranged obliquely, part of the condensed oil stains flow down along the inclined surface into the oil collecting box 30. The cooking fumes enter the housing 1 along the condensation telescopic frame 7. The condensed oil stains drip into the oil stain box 8. The purified air is discharged from the air outlet 11 on the left side of the housing 1. The flow direction of the cooking fumes is as shown by the arrow.

[0033] Both the oil collecting box 30 and the oil stain box 8 can be conveniently detached for cleaning.

[0034] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An air purifier capable of sucking cooking fumes, comprising a housing, wherein a motor impeller assembly and a filter are arranged inside the housing, and it is characterized in that: A cover plate assembly is provided at the upper end of the housing. The cover plate assembly is a hollow structure that communicates with the housing. The right side of the cover plate assembly is rotatably connected to the housing horizontally by 360° or 180° and can move up and down a certain distance. An air inlet is provided at a position near the right side of the upper surface of the cover plate assembly. An upper cover that can be pushed and pulled is provided at the air inlet. An oil fume inlet is provided on the lower surface of the left side of the cover plate assembly. An air outlet is provided on the left side of the housing. The motor impeller assembly is arranged in the housing near the air outlet. The filter is arranged in the housing, on the right side of the motor impeller assembly. A condensation telescopic frame connected to the cover plate assembly is provided at the upper right end inside the housing. An oil dirt box is provided at the bottom inside the housing, below the condensation telescopic frame. When the purifier is in the air purification mode, the upper cover is opened, and air enters the housing from the air inlet of the cover plate assembly. The purified air is discharged from the air outlet on the left side of the housing. When the purifier is in the oil fume purification mode, the upper cover is closed, the cover plate assembly is rotated above the cooking utensil, and the oil fume enters the housing from the oil fume inlet. The condensed oil dirt drips into the oil dirt box, and the purified air is discharged from the air outlet on the left side of the housing.

2. The air purifier according to claim 1, wherein: The housing is a cylindrical structure with an open bottom. A bottom cover is provided in alignment with the lower opening position of the housing. The cover plate assembly is rotatably and coaxially arranged on the top cover of the housing. The condensation telescopic frame is cylindrical. A circular hole for installing the condensation telescopic frame is provided on the right side of the top cover. A circular hole corresponding to the circular hole is provided on the lower surface of the right side of the cover plate assembly. One end of the condensation telescopic frame is fixedly connected to the circular hole of the top cover in a positioning manner, and the other end is connected to the circular hole of the cover plate assembly. The cover plate assembly can move up and down a certain distance through the condensation telescopic frame and is rotatably connected to the housing horizontally by 360° or 180° through the condensation telescopic frame.

3. The air purifier according to claim 2, wherein: The condensation telescopic frame is a telescopic cylinder structure composed of three inner and outer cylinders. The specific structure is as follows: The upper end of the outer cylinder is provided with an outer edge that is turned outwards and abuts against and is fixed to the circular hole of the top cover, and an inner edge that is turned inwards. The lower end of the middle cylinder is provided with a turned-out flange that cooperates with and limits the upper inner edge of the outer cylinder. The upper end of the middle cylinder is provided with a turned-in limiting flange. The lower end of the inner cylinder is provided with a turned-out folding edge that cooperates with and abuts against the upper limiting flange of the middle cylinder. The upper end of the inner cylinder is turned outwards to form a connecting ring that cooperates with and is connected to the circular hole of the cover plate assembly. When the condensation telescopic frame is unfolded, a positioning structure is provided between the three inner and outer cylinders.

4. The air purifier according to claim 3, wherein: The oil fume inlet on the lower surface of the cover plate assembly is inclined downwards. A primary filter screen is installed at the oil fume inlet. A detachable oil collecting box is provided at the bottom of the left side of the cover plate assembly, connected to the left side of the primary filter screen.

5. The air purifier according to any one of claims 2 to 4, characterized in that: A plurality of connecting columns are provided on the inner wall of the lower end of the housing. Counterbores corresponding to the connecting columns are provided on the bottom cover. The bottom cover is coaxially arranged at the lower end of the housing and fixed by screws.

6. The air purifier according to claim 5, wherein: The left side inside the housing is formed into an installation cavity for installing the motor impeller assembly. The motor impeller assembly is fixed in the installation cavity through a bracket.

7. The air purifier according to claim 6, characterized in that: The filter is two groups of filter screens. A fixing plate is provided at a position in the middle and near the right side above the bottom cover inside the housing. A positioning groove for inserting and positioning the lower ends of the two groups of filter screens is formed on the fixing plate.

8. The air purifier according to claim 7, wherein: The oil stain box is arranged on the fixed plate in a pull-out manner. There is a fixing seat frame for the oil stain box on the fixed plate. Lugs extending outwards are provided on the front and rear sides of the bottom of the fixing seat frame of the oil stain box. Corresponding connection holes are provided on the fixed plate. The fixing seat frame of the oil stain box is positioned and fixed by screws through the cooperation of the lugs and the connection holes. The fixing seat frame allows the oil stain box to be pulled in and out in a pull-out manner, and there is a snap fit between the two.

9. The air purifier according to claim 8, characterized in that: A take-out opening for facilitating the removal and cleaning of the oil stain box is provided at the right side of the lower end of the housing corresponding to the position of the oil stain box.

10. The air purifier according to any one of claims 1 to 4, characterized in that: A concave portion for facilitating manual upward stretching is provided at the right end of the cover plate assembly, and a concave surface for facilitating manual rotation is provided on the left side of the upper surface of the cover plate assembly.

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