Portable extractor hood

Abstract

The application discloses a portable range hood, which comprises a main body (100) in the form of a tube and provided with openings at two ends, an air inlet at one end of the main body and an air outlet at the other end of the main body; a fan assembly (120) arranged inside the main body to suck in oil fume from the air inlet and discharge the oil fume from the air outlet; and a filter device (160) arranged at the air inlet and snap-fitted with the main body (100). The portable range hood can be simply disassembled and assembled by arranging the filter device (160) and the main body (100) to be detachably connected with each other. Therefore, it is convenient for a user to clean the portable range hood, and the portable range hood is convenient to operate, simple to use and more user-friendly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of range hoods, and in particular, to a portable range hood. BACKGROUND

[0002] Range hoods in the prior art are all very large. If a range hood is installed in a kitchen, it will occupy a large space, and once installed, the range hood is difficult to move, which is very inconvenient for open kitchens or picnics. In order to solve these problems, range hoods in the prior art are usually miniaturized to make portable range hoods, and the pollutants in the oil fumes are adsorbed by the filtering device in the portable range hood. However, the portable range hood in the prior art usually uses screws to fix all the components together to ensure the overall stability, which results in difficult operation, complex steps, and inconvenience of use when the components in the range hood need to be cleaned or replaced.

[0003] Therefore, there is a need for improvement and development in the prior art. SUMMARY

[0004] In view of the shortcomings of the prior art, the present application aims to provide a portable range hood, which aims to solve the problems of difficult operation, complex steps, and inconvenience of use when cleaning or replacing the components in the range hood in the prior art.

[0005] The technical solution of the present application is provided as follows.

[0006] The portable range hood comprises:

[0007] a main body, wherein the main body is in the form of a tube, and an opening is arranged at each of two end portions of the main body, the opening of one of the two end portions of the main body being an air inlet of the portable range hood, and the opening of the other of the two end portions of the main body being an air outlet of the portable range hood;

[0008] a fan assembly, wherein the fan assembly is arranged inside the main body to suck in the oil fumes outside the portable range hood from the air inlet and discharge the oil fumes from the air outlet; and

[0009] a filtering device, wherein the filtering device is arranged at the air inlet and is snap-fitted with the main body.

[0010] Preferably, the filtering device comprises:

[0011] a first filtering unit arranged at the air inlet and configured to filter oil droplets in the oil fumes; and

[0012] a second filtering unit arranged between the first filtering unit and the fan assembly and configured to filter solid particles in the oil fumes.

[0013] The first filter unit is detachably connected to the second filter unit, and the second filter unit is snap-fitted with the main body.

[0014] Preferably, the first filter unit includes:

[0015] a front cover disposed at the air inlet;

[0016] a snap cover, wherein the snap cover is disposed between the front cover and the fan assembly, and is snap-fitted with the front cover; and

[0017] a first filter member snap-fitted between the front cover and the snap cover, and configured to filter oil droplets in the oil fume.

[0018] Preferably, the first filter member is a metal mesh. For example, the metal mesh can be a stainless steel mesh or an aluminum mesh.

[0019] Preferably, the front cover is arranged with a first snap groove, the snap cover is arranged with a first snap protrusion corresponding to the first snap groove, and the snap cover is snap-fitted with the front cover by snap-fitting of the first snap protrusion of the snap cover with the first snap groove of the front cover.

[0020] Preferably, the front cover is arranged with a first magnetic member facing the second filter unit, the second filter unit is arranged with a second magnetic member corresponding to the first magnetic member, and the first filter unit is detachably connected to the second filter unit by magnetic force between the first magnetic member and the second magnetic member.

[0021] Preferably, the second filter unit includes:

[0022] a tray cover disposed between the first filter unit and the fan assembly, and arranged inside the main body; and

[0023] a second filter member snap-fitted in the tray cover, and configured to filter solid particles in the oil fume.

[0024] Preferably, the second filter member is activated carbon filter cotton.

[0025] Preferably, the second filter member is arranged between the first filter unit and the tray cover, is exposed when the first filter unit is detached from the second filter unit and removed through the air inlet of the portable extractor hood, and can be detached from the tray cover and removed through the air inlet of the portable extractor hood.

[0026] Preferably, the tray cover includes a tray cover sidewall that is fitted with an inner wall of the main body, the tray cover sidewall is arranged with a second snap groove, the main body is arranged with a second snap protrusion corresponding to the second snap groove, and the second filter unit is detachably connected to the main body by snap fitting of the second snap groove with the second snap protrusion of the main body.

[0027] Preferably, the tray cover sidewall is arranged with a second magnetic member facing the first filter unit, the first filter unit is arranged with a first magnetic member corresponding to the second magnetic member, and the first filter unit is detachably connected to the second filter unit by magnetic force between the first magnetic member and the second magnetic member.

[0028] Preferably, the tray cover sidewall is arranged with a fourth snap protrusion, and the second filter member is snap fitted between the fourth snap protrusion and the tray cover.

[0029] Preferably, the portable extractor hood further comprises:

[0030] a rear cover arranged at the air outlet and detachably connected to the main body; and

[0031] a base arranged perpendicularly to the main body and below the main body and configured to support the main body.

[0032] Preferably, the rear cover is in the form of a circular grid divided into a plurality of sectorial portions by radial rods, each of the sectorial portions includes a set of straight parallel rods, and a plurality of sets of straight parallel rods extend in four or more different directions.

[0033] Preferably, a rechargeable battery for supplying power to the fan assembly is arranged in the base.

[0034] Compared with the prior art, the present application provides a portable extractor hood comprising a main body, a fan assembly, and a filter device. The main body is in the form of a tube and is arranged with an opening at each of two end portions of the main body, the opening of one of the two end portions of the main body is an air inlet of the portable extractor hood, and the opening of the other of the two end portions of the main body is an air outlet of the portable extractor hood. The fan assembly is arranged inside the main body to suck in cooking fumes outside the portable extractor hood from the air inlet and discharge the cooking fumes from the air outlet. The filter device is arranged at the air inlet of the main body and detachably connected to the main body. The portable extractor hood of the present application can be simply disassembled and assembled by arranging the filter device, the fan assembly, and the main body to be detachably connected to each other. Therefore, it is convenient for the user to clean the portable extractor hood, and the portable extractor hood is easy to operate, simple to use, and more user-friendly. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 An exploded view of the portable extractor hood of the present application is shown.

[0036] Figure 2 A perspective view of the portable extractor hood of the present application is shown.

[0037] Figure 3 A perspective view of the portable extractor hood of the present application is shown.

[0038] Figure 4 A cross-sectional view of the portable extractor hood of the present application is shown.

[0039] Figure 5 A perspective view of the main body of the portable extractor hood of the present application is shown.

[0040] Figure 6 A perspective view of the main body of the portable extractor hood of the present application is shown.

[0041] Figure 7 An exploded view of the second filter unit of the portable extractor hood of the present application is shown.

[0042] Figure 8 A perspective view of the second filter unit of the portable extractor hood of the present application is shown.

[0043] Figure 9 An exploded view of the first filter unit of the portable extractor hood of the present application is shown.

[0044] Figure 10 A perspective view of the first filter unit of the portable extractor hood of the present application is shown.

[0045] Figure 11 A perspective view of the rear cover of the portable extractor hood of the present application is shown. DETAILED DESCRIPTION

[0046] The present application provides a portable extractor hood. In order to make the object, technical solutions and effects of the present application more clearly and explicitly understood, the present application will be described in detail below. It should be understood that the specific embodiments described herein are only intended to illustrate the present application, and are not intended to limit the present application.

[0047] It should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "vertical" and "horizontal" represent the direction or positional relationship based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the mentioned structures must have a particular direction or must be constructed in a particular direction, and should not be understood as a limitation of the present application.

[0048] In addition, unless specifically defined otherwise herein, "a" and "the" can refer to both the singular and the plural, and "one" or "another" can refer to either the singular or the plural. If there is any conflict between a description herein and a description in the embodiments, the description herein prevails. If there is any conflict between a description herein and a description in the embodiments, the description herein prevails. If there is any conflict between a description herein and a description in the embodiments, the description herein prevails. Therefore, features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In addition, the technical solutions of multiple embodiments can be combined with each other, which should be able to be implemented by those skilled in the art. When the technical solutions are combined on the basis of conflict or cannot be implemented, it should be understood that such combination of technical solutions does not exist and is not within the scope claimed by the present application.

[0049] The present application provides a portable extractor hood. During operation of the portable extractor hood, an air inlet is defined as a front portion, and an air outlet is defined as a rear portion. As shown in Figure 1 and Figure 4 The portable extractor hood comprises a main body 100, a fan assembly 120 arranged inside the main body 100 and detachably connected to the main body 100, a filter device 160 arranged in front of the fan assembly 120 and snap-fitted with the main body 100, and a rear cover 400 arranged behind the fan assembly 120 and detachably connected to the main body 100. As shown in Figure 2 and Figure 4 When the portable extractor hood is assembled, the filter device 160 is arranged at the air inlet. When the fan assembly 120 starts to work, the oil fume outside the portable extractor hood is sucked into the main body 100 through the air inlet, and passes through the filter device 160, the clean air filtered by the filter device 160 passes through the fan assembly 120 and is discharged from the air outlet at the rear cover 400 to purify the oil fume. The portable extractor hood provided by the present application can be easily disassembled and assembled to replace and clean the filter device 160, which is more user-friendly and convenient to use and carry.

[0050] Preferably, the fan assembly 120 comprises an axial fan with a size of 140x140x38mm. Further preferably, the maximum air flow of the fan assembly 120 can be 282CFM (479,12m 3 / hr), and the maximum air pressure can be 52mmH2O (509,95Pa).

[0051] Further, the filtering device 160 comprises a first filtering unit 200 and a second filtering unit 300. The first filtering unit 200 is arranged in front of the second filtering unit 300 and detachably connected to the second filtering unit. The second filtering unit 300 is arranged between the first filtering unit 200 and the fan assembly 120 and snap-fitted with the main body 100, so that the filtering device 160 is snap-fitted with the main body 100. When the fan assembly 120 starts to work, the oil fume outside the portable extractor hood is sucked into the main body 100 through the air inlet and successively passes through the first filtering unit 200 and the second filtering unit 300, the clean air filtered by the first filtering unit 200 and the second filtering unit 300 is discharged from the air outlet at the rear cover 400 to purify the oil fume. The first filtering unit 200 is configured to filter the oil droplets in the oil fume, and the second filtering unit 300 is configured to filter the solid particles in the oil fume. The oil fume can be purified by successively passing through the first filtering unit 200 and the second filtering unit 300. The portable extractor hood provided by the present application can be easily disassembled and assembled to replace and clean the first filtering unit 200 and the second filtering unit 300, which is more user-friendly and convenient to use and carry.

[0052] Since the first filtering unit 200 and the second filtering unit 300 are both arranged in front of the fan assembly 120, the oil fume can be thoroughly filtered before reaching the fan assembly 120. Specifically, since the first filtering unit 200 is configured to filter the oil droplets in the oil fume, the fan assembly 120 can remain clean for a long time and only needs to be cleaned less frequently. Since the second filtering unit 300 is configured to filter the solid particles in the oil fume, damage to the fan assembly 120 can be reduced, and thus the service life of the fan assembly 120 can be prolonged.

[0053] As shown in Figure 5 and Figure 6 , the main body 100 is in the form of a tube, and an opening is arranged at each of the two end portions of the main body 100. An air passage is formed in the main body 100 to flow through. The opening of one of the two end portions of the main body 100 is the air inlet of the portable extractor hood, and the opening of the other of the two end portions of the main body 100 is the air outlet of the portable extractor hood. Optionally, the main body 100 is in the form of a cylinder, and the axial direction of the main body 100 is parallel to the horizontal plane. The base 110 is arranged vertically below the main body 100 to stably arrange the main body 100 and ensure that a certain height difference is formed between the main body 100 and the horizontal plane where the extractor hood is arranged. Optionally, the base 110 is in the form of a truncated cone. Optionally, as shown in Figure 4 , the counterweight 111 is arranged at the bottom of the base 110 to increase the stability of the portable extractor hood and avoid tilting due to the high center of gravity of the portable extractor hood. As shown inFigure 4 As shown, a partition 101 is arranged inside the main body 100, and the partition 101 is arranged vertically and in a grid shape to facilitate airflow. With the air inlet at the front and the air outlet at the rear, a fan assembly 120 is detachably connected to the partition 101, and the fan assembly 120 is arranged in front of the partition 101. Optionally, the partition 101 is provided with threaded holes, and the fan assembly 120 is fixed to the partition 101 by screws.

[0054] As in Figure 5 As shown, the inner wall of the main body 100 is further provided with a second snap-fit ​​protrusion 102 and a third snap-fit ​​protrusion 103. The second snap-fit ​​protrusion 102 is arranged perpendicular to the inner wall of the main body 100, and a plurality of second snap-fit ​​protrusions 102 are arranged on the inner wall of the main body 100 at equal intervals. The second snap-fit ​​protrusion 102 cooperates with the second filter unit 300, so that the second filter unit 300 is detachably connected to the main body 100. The third snap-fit ​​protrusion 103 is arranged perpendicular to the inner wall of the main body 100, and a plurality of third snap-fit ​​protrusions 103 are arranged on the inner wall of the main body 100 at equal intervals. When the second filter unit 300 is engaged with the main body 100 through the second snap-fit ​​protrusion 102, the top end of the third snap-fit ​​protrusion 103 abuts against the second filter unit 300 to prevent the second filter unit 300 from vibrating in the main body 100, which makes the connection more stable and allows the filter device 160 to be stably engaged with the main body 100. Preferably, the second buckle protrusion 102 is a cylindrical buckle protrusion, and the third buckle protrusion 103 is a plate-shaped buckle protrusion extending in the axial direction of the main body 100.

[0055] As in Figure 4 As shown, with the air inlet at the front and the air outlet at the rear, the second filter unit 300 is arranged in front of the fan assembly 120, and the second filter unit is detachably connected to the main body 100. (As shown in...) Figure 7 and Figure 8As shown in FIG. 2, the second filter unit 300 includes a tray cover 310 and a second filter member 320 snap-fitted in the tray cover 310, the second filter member 320 being configured to filter solid particles in the oil fume. When the second filter unit 300 is connected to the main body 100, the tray cover 310 is arranged inside the main body 100. The tray cover 310 includes a grid tray and a tray cover sidewall 315 arranged at the edge of the grid tray and extending forward perpendicularly to the grid tray, the tray cover sidewall 315 cooperating with the inner wall of the main body 100. The outer side of the tray cover sidewall 315 is arranged with a second snap groove 312 in the circumferential direction, the second snap groove 312 being arranged correspondingly to the second snap protrusion 102 of the main body 100, so that the second filter unit 300 is snap-fitted with the main body 100, and thus the filter device 160 is snap-fitted with the main body 100. Preferably, the second snap groove 312 is arranged with an opening at the rear portion of the tray cover sidewall 315, the opening first extending a certain distance in the axial direction of the tray cover sidewall 315, and then extending in the circumferential direction of the tray cover sidewall 315 to form the second snap groove 312. Therefore, during assembly of the second filter unit 300, first, the opening of the second snap groove 312 cooperates with the second snap protrusion 102 to position the second filter unit 300. Then, the second filter unit 300 is pushed into the main body 100, and then the second snap groove 312 moves relative to the second snap protrusion 102 in the axial direction of the tray cover sidewall 315. Finally, by rotating the second filter unit 300, the second snap protrusion 102 is snap-fitted in the plurality of portions of the second snap groove 312 along the circumferential direction of the tray cover sidewall 315, so that the second filter unit 300 is snap-fitted with the main body 100, and thus the filter device 160 is snap-fitted with the main body 100. In addition, the inner side of the tray cover sidewall 315 is arranged with a third handle 313. The third handle 313 is a protruding block perpendicular to the tray cover sidewall 315. A user can conveniently push, pull, and rotate the tray cover 310 through the third handle 313 to assemble the second filter unit 300 with the main body 100, and disassemble the second filter unit 300 from the main body 100. Preferably, the inner side of the tray cover sidewall 315 is arranged with two third handles 313 arranged symmetrically, and a user can hold the two third handles 313 with both hands to assemble and disassemble the second filter unit 300. Disassembling the second filter unit 300 from the main body 100 is simple, and after the second filter unit 300 is disassembled, the fan assembly 120 can be exposed, which facilitates the user to disassemble and clean the second filter unit 300 and the fan assembly 120.

[0056] As shown in FIG. 2, the second filter unit 300 includes a tray cover 310 and a second filter member 320 snap-fitted in the tray cover 310, the second filter member 320 being configured to filter solid particles in the oil fume. When the second filter unit 300 is connected to the main body 100, the tray cover 310 is arranged inside the main body 100. The tray cover 310 includes a grid tray and a tray cover sidewall 315 arranged at the edge of the grid tray and extending forward perpendicularly to the grid tray, the tray cover sidewall 315 cooperating with the inner wall of the main body 100. The outer side of the tray cover sidewall 315 is arranged with a second snap groove 312 in the circumferential direction, the second snap groove 312 being arranged correspondingly to the second snap protrusion 102 of the main body 100, so that the second filter unit 300 is snap-fitted with the main body 100, and thus the filter device 160 is snap-fitted with the main body 100. Preferably, the second snap groove 312 is arranged with an opening at the rear portion of the tray cover sidewall 315, the opening first extending a certain distance in the axial direction of the tray cover sidewall 315, and then extending in the circumferential direction of the tray cover sidewall 315 to form the second snap groove 312. Therefore, during assembly of the second filter unit 300, first, the opening of the second snap groove 312 cooperates with the second snap protrusion 102 to position the second filter unit 300. Then, the second filter unit 300 is pushed into the main body 100, and then the second snap groove 312 moves relative to the second snap protrusion 102 in the axial direction of the tray cover sidewall 315. Finally, by rotating the second filter unit 300, the second snap protrusion 102 is snap-fitted in the plurality of portions of the second snap groove 312 along the circumferential direction of the tray cover sidewall 315, so that the second filter unit 300 is snap-fitted with the main body 100, and thus the filter device 160 is snap-fitted with the main body 100. In addition, the inner side of the tray cover sidewall 315 is arranged with a third handle 313. The third handle 313 is a protruding block perpendicular to the tray cover sidewall 315. A user can conveniently push, pull, and rotate the tray cover 310 through the third handle 313 to assemble the second filter unit 300 with the main body 100, and disassemble the second filter unit 300 from the main body 100. Preferably, the inner side of the tray cover sidewall 315 is arranged with two third handles 313 arranged symmetrically, and a user can hold the two third handles 313 with both hands to assemble and disassemble the second filter unit 300. Disassembling the second filter unit 300 from the main body 100 is simple, and after the second filter unit 300 is disassembled, the fan assembly 120 can be exposed, which facilitates the user to disassemble and clean the second filter unit 300 and the fan assembly 120. Figure 7As shown, a fourth snap-fit ​​protrusion 314 is also arranged inside the tray cover 310 in front of the mesh tray of the tray cover 310, and the fourth snap-fit ​​protrusion is a protrusion perpendicular to the side wall 315 of the tray cover, with a plurality of fourth snap-fit ​​protrusions 314 arranged at equal intervals along the side wall 315 of the tray cover. (See figure...) Figure 8 As shown, the second filter element 320 is fixedly snapped into the tray cover 310 by the mesh tray and the fourth snap-fit ​​protrusion 314. Preferably, the second filter element 320 is activated carbon filter cotton, which can effectively adsorb and purify solid particles in the fumes. Therefore, when the portable range hood is working, the fumes enter from the air inlet of the main body 100, pass through the second filter element 320, then through the mesh tray of the tray cover 310, through the fan assembly 120, and then exit from the air outlet of the main body 100. Since the second filter element 320 is fixedly snapped into the tray cover 310 by the fourth snap-fit ​​protrusion 314, the user can directly remove the second filter element 320 by hand to clean or replace it, which is convenient for the user.

[0057] As in Figure 4 As shown, the second filter element 320 is arranged between the first filter unit 200 and the tray cover 310. To clean or replace the second filter element 320, the user only needs to remove the first filter unit 200 from the second filter unit 300 and remove it through the air inlet of the portable range hood. The second filter element 320 is then exposed and can be removed from the tray cover 310 and through the air inlet of the portable range hood. In this way, the user can easily remove the second filter element 320 without having to remove the tray cover 310 from the main body 100. That is, the user only needs to disassemble a minimal number of parts to clean or replace the second filter element 320.

[0058] In addition, such as in Figure 7 As shown, a second magnetic member 311 is disposed in front of the tray cover sidewall 315. The second magnetic member 311 is configured to cooperate with the first magnetic member 211 of the first filter unit 200, such that the first filter unit 200 is detachably connected to the second filter unit 300. Preferably, a plurality of second magnetic members 311 (e.g., three second magnetic members 311) are arranged at equal intervals in front of the tray cover sidewall 315 to increase the stability of the connection between the first filter unit 200 and the second filter unit 300.

[0059] As in Figure 4 As shown, the first filter unit 200 is arranged at the air outlet of the portable range hood and in front of the second filter unit 300. (As shown in...) Figure 9 and Figure 10As shown in FIG. 1, the first filter unit 200 includes a front cover 210, a buckle cover 230 detachably connected to the front cover 210, and a first filter member 220 buckled between the front cover 210 and the buckle cover 230 and configured to filter oil droplets in the oil fume. As shown in FIG. 1, the first filter unit 200 is detachably connected to the second filter unit 300 by the magnetic force between the first magnetic members 211 and the second magnetic members 311, so that the filter device 160 is assembled. Figure 9 As shown in FIG. 1, the front cover 210 is in the form of a horn shape, and the size of the front cover 210 matches the size of the air inlet. The first magnetic members 211 are fixedly arranged at the rear of the front cover 210, and the positions of the first magnetic members 211 on the front cover 210 correspond to the second magnetic members 311, for example, three first magnetic members 211 are correspondingly arranged. The first filter unit 200 is detachably connected to the second filter unit 300 by the magnetic force between the first magnetic members 211 and the second magnetic members 311, so that the filter device 160 is assembled. Alternatively, the first magnetic members 211 are magnets, and the second magnetic members 311 are iron sheets; or the first magnetic members 211 are iron sheets, and the second magnetic members 311 are magnets. The first filter unit 200 can be conveniently assembled and disassembled by the user through the magnetic connection, which facilitates the user to clean or replace the first filter unit 200.

[0060] The horn shape of the front cover 210 is beneficial to form a smooth air flow at the air inlet of the portable extractor hood. With the help of the buckle cover 230, the first filter member 220 can be accurately positioned at the narrower end of the front cover 210. Since the first filter unit 200 can be detached as a whole from the second filter unit 300, the first filter member 220 buckled between the front cover 210 and the buckle cover 230 can be better protected from damage such as deformation during the detachment process. In addition, since the user can hold the front cover 210 and / or the buckle cover 230 during the detachment process, the user does not have to directly touch the first filter member 220, which can be greasy after long-term use and thus is not pleasant to touch.

[0061] Preferably, the first filter member 220 is a metal mesh, which is effective in filtering oil droplets in the oil fume. The metal mesh also has the additional advantages of being durable and easy to clean. Preferably, the metal mesh is safe to use in a dishwasher. Also, the metal mesh as a solid material is particularly suitable for forming part of the appearance of the portable extractor hood. For example, the metal mesh can be a stainless steel mesh or an aluminum mesh. Preferably, the metal mesh comprises three layers of mesh. Preferably, the mesh sizes of the three layers of mesh are different. Preferably, the top and bottom layers of mesh in the three layers of mesh have the same mesh size, which is different from the mesh size of the middle layer of mesh. This configuration helps to improve the ability to filter oil droplets in the oil fume. For example, the three layers of mesh can be a top layer of mesh with a mesh size of 1 mm, a middle layer of mesh with a mesh size of 1.5 mm, and a bottom layer of mesh with a mesh size of 1 mm. More preferably, the combined three layers of mesh are held together by a metal rim, which surrounds the edges of the multiple layers of mesh. For example, the metal rim can be an aluminum rim.

[0062] In addition, as shown in Figure 10 , the first handle 213 is arranged in front of the front cover 210, and the first filter unit 200 can be detached from the second filter unit 300 by the user through the first handle 213, which is easy and convenient. Preferably, the first handle 213 is arranged correspondingly to the first magnetic member 211. Therefore, when the first filter unit 200 is assembled by the user, the first magnetic member 211 can cooperate with the second magnetic member 311 only by cooperating the first handle 213 with the second magnetic member 311, so that the first filter unit 200 is assembled, which is convenient for the user to operate and easy to use.

[0063] As shown in Figure 9 , the side wall of the front cover 210 is arranged with a first snap groove 212, and the first snap groove 212 is arranged with an opening at the rear portion of the front cover 210. The opening first extends a certain distance in the axial direction of the front cover 210, and then extends in the circumferential direction of the front cover 210 to form the first snap groove 212. The first snap groove 212 cooperates with the snap cover 230, so that the snap cover 230 is detachably connected to the front cover 210, and thus the first filter member is snap-fitted between the snap cover 230 and the front cover 210. Preferably, a plurality of first snap grooves 212 are arranged on the side wall of the front cover 210 at the same interval.

[0064] As shown in Figure 9 and Figure 10As shown in FIG. 2, the buckle cover 230 is disposed behind the front cover 210 and detachably connected to the front cover 210. The buckle cover 230 is in the form of a ring shape, and an inner wall of the buckle cover 230 is disposed with a first buckle protrusion 231 which is perpendicular to the inner wall of the buckle cover 230, and the position of the first buckle protrusion 231 on the buckle cover 230 corresponds to the first buckle groove 212. Preferably, the first buckle protrusion 231 is a cylindrical buckle protrusion. When assembling the first filter unit 200, the first filter member 220 is first disposed between the front cover 210 and the buckle cover 230, and then the first buckle protrusion 231 of the buckle cover 230 is fitted with the opening of the first buckle groove 212 of the front cover 210 to position the buckle cover 230 and the front cover 210. Thereafter, the buckle cover 230 is pushed and rotated so that the first buckle protrusion 231 moves along the first buckle groove 212, and finally, the first buckle protrusion 231 is buckled in a portion of the first buckle groove 212 along the circumferential direction of the sidewall of the front cover 210, so that the buckle cover 230 is buckled with the front cover 210, and the first filter member 220 is buckled between the buckle cover 230 and the front cover 210. Therefore, when the first filter member 220 needs to be replaced or cleaned by the user, the first filter unit 200 can be disassembled only by rotating and pulling the buckle cover 230 in the opposite direction, and the first filter member 220 can be taken out for cleaning and replacement, which is simple and fast in operation.

[0065] Further, as shown in Figure 10 the outer side of the buckle cover 230 is disposed with a second handle 232. The second handle 232 is a protruding block perpendicular to the outer sidewall of the buckle cover 230. The user can conveniently push, pull, and rotate the buckle cover 230 through the second handle 232, so that the buckle cover 230 is assembled with and disassembled from the front cover 210. Preferably, a plurality of second handles 232 are disposed on the outer wall of the buckle cover 230 at the same interval, and the user can grasp the second handle 232 at any posture or angle to assemble the first filter unit 200, which is convenient and simple in operation.

[0066] Furthermore, the first filter element 220 is an oil filter screen, and it snaps into place between the front cover 210 and the snap-on cover 230. The first filter element 220 is configured to adsorb oil droplets in the fumes and effectively remove oil from the fumes to purify them. Therefore, when the portable range hood is working, the fumes enter from the air inlet of the main body 100, pass through the front cover 210, then through the first filter element 220 to remove oil droplets, then through the snap-on cover 230 into the second filter unit 300 to remove solid particles, then through the fan assembly 120 and out from the air outlet of the main body 100 to purify the fumes. Since the first filter element 220 snaps into place between the front cover 210 and the snap-on cover 230, and the front cover 210 and the snap-on cover 230 can be assembled and disassembled by rotating, pushing, and pulling, the first filter element 220 can be easily removed for cleaning or replacement, which is convenient and easy to use.

[0067] As in Figure 3 As shown, a rear cover 400 is also arranged at the air outlet of the portable range hood. The rear cover 400 is in the form of a mesh and is detachably connected to the main body 100. (As shown in...) Figure 11 As shown, a third magnetic member 410 is arranged on the side of the rear cover 400 facing the body 100, such that the rear cover 400 is detachably connected to the body 100. Preferably, a plurality of third magnetic members 410 are arranged on the rear cover 400 at equal intervals, for example, three third magnetic members 410 are arranged to improve the stability of the connection between the rear cover 400 and the body 100. Figure 6 As shown, a fourth magnetic member 104 is fixedly arranged at the air outlet at the rear of the main body 100. The position of the fourth magnetic member 104 on the main body 100 corresponds to the position of the third magnetic member 410 on the rear cover 400; for example, three fourth magnetic members 104 are arranged correspondingly. Optionally, the third magnetic member 410 is a magnet, and the fourth magnetic member 104 is an iron sheet; or the third magnetic member 410 is an iron sheet, and the fourth magnetic member 104 is a magnet. The rear cover 400 is detachably connected to the main body 100 by the magnetic force between the third magnetic member 410 and the fourth magnetic member 104. Furthermore, the rear cover 400 is provided with a fourth handle 420, which allows the user to easily and conveniently remove the rear cover 400 from the main body 100. Preferably, the fourth handle 420 corresponds to the third magnetic member 410, such that when the back cover 400 is assembled by the user, the third magnetic member 410 can engage with the fourth magnetic member 104 simply by engaging the fourth handle 420 with the fourth magnetic member 104, thus assembling the back cover 400, which is convenient for user operation and easy to use.

[0068] As in Figure 3As shown in FIG. 4, the back cover 400 is in the form of a circular grid divided into a plurality of sectors by radial rods, each of the sectors including a set of straight parallel rods, wherein the sets of straight parallel rods extend in four different directions. Alternatively, the sets of straight parallel rods can extend in more than four different directions. This grid pattern even further enhances the axial air flow at the back of the range hood. In contrast, a grid with parallel rods extending in a single direction can result in uneven air flow at the back of the range hood. Thus, a portion of the cooking fumes can be directed to the back of the range hood without passing through the air inlet of the range hood.

[0069] As shown in FIG. 4, the back cover 400 is in the form of a circular grid divided into a plurality of sectors by radial rods, each of the sectors including a set of straight parallel rods, wherein the sets of straight parallel rods extend in four different directions. Alternatively, the sets of straight parallel rods can extend in more than four different directions. This grid pattern even further enhances the axial air flow at the back of the range hood. In contrast, a grid with parallel rods extending in a single direction can result in uneven air flow at the back of the range hood. Thus, a portion of the cooking fumes can be directed to the back of the range hood without passing through the air inlet of the range hood. Figure 3 and Figure 4 As shown in FIG. 4, the back cover 400 is in the form of a circular grid divided into a plurality of sectors by radial rods, each of the sectors including a set of straight parallel rods, wherein the sets of straight parallel rods extend in four different directions. Alternatively, the sets of straight parallel rods can extend in more than four different directions. This grid pattern even further enhances the axial air flow at the back of the range hood. In contrast, a grid with parallel rods extending in a single direction can result in uneven air flow at the back of the range hood. Thus, a portion of the cooking fumes can be directed to the back of the range hood without passing through the air inlet of the range hood.

[0070] Preferably, a rechargeable battery for powering the fan assembly 120 is arranged in the base 110. Thus, the range hood can be used anywhere without the need to plug in the power cord 140. Moreover, arranging the rechargeable battery in the base 110 helps to stabilize the portable range hood when it is arranged on the ground. For example, the battery pack can include six 18650 lithium-ion batteries with a total capacity of 4400 mAh. The rechargeable battery can be replaceable. In an alternative embodiment, the rechargeable battery can be installed instead of the power cord 140, such that the range hood can only be powered by the rechargeable battery.

[0071] The assembly, disassembly and operation of the portable range hood will be briefly described hereinafter.

[0072] The air inlet of the portable extractor hood is defined as the front portion, and the air outlet of the portable extractor hood is defined as the rear portion. First, the fan assembly 120 is fixed in the main body 100 at the front portion of the partition 101 by screws. Then, the second filter member 320 is snap-fitted in the tray cover 310 by the fourth snap protrusion 314 to complete the assembly of the second filter unit 300, and the second filter unit 300 is connected to the main body 100 by snap-fitting the second snap protrusion 102 of the main body 100 with the second snap groove 312. The second filter unit 300 is assembled at the front portion of the fan assembly 120, and then the third snap protrusion 103 of the main body 100 is abutted against the second filter unit 300 to prevent the second filter unit 300 from vibrating. Next, when assembling the first filter unit 200, the front cover 210, the first filter member 220, and the snap cover 230 are arranged in sequence, the front cover 210 and the snap cover 230 are snap-fitted by the first snap groove 212 of the front cover 210 and the first snap protrusion 231 of the snap cover 230, and the first filter member 220 is snap-fitted between the front cover 210 and the snap cover 230 to assemble the first filter unit 200. Then, the first filter unit 200 is detachably connected to the second filter unit 300 by the magnetic force between the first magnetic member 211 of the front cover 210 and the second magnetic member 311 of the tray cover 310, and the first filter unit 200 is arranged in front of the second filter unit 300. Finally, the rear cover 400 is assembled at the air outlet of the portable extractor hood at the rear of the partition 101 of the main body 100 by the magnetic connection between the third magnetic member 410 of the rear cover 400 and the fourth magnetic member 104 of the main body 100. The assembly process is convenient and fast, and does not require the use of additional tools, and the operation is simple.

[0073] After the assembly is completed, the power cord 140 of the portable extractor hood is connected to the power supply and the switch 130 is turned on, so that the fan assembly 120 starts to work. Then, the oil fume outside the portable extractor hood is sucked into the main body 100 from the air inlet of the portable extractor hood. First, the oil droplets in the oil fume are removed by the first filter unit 200, then the solid particles in the oil fume are removed by the second filter unit 300, and finally the purified air flow successively passes through the fan assembly 120, the partition 101, and the rear cover 400, and is discharged from the air outlet of the portable extractor hood. The portable extractor hood can purify the oil fume with a simple structure.

[0074] When cleaning the portable range hood, disassembly can be performed step by step as needed. When the first filter element 220 needs replacement, disassemble the first filter unit 200 and rotate the latch cover 230 to separate it from the front cover 210, allowing for cleaning or replacement of the first filter element 220. When the second filter element 320 needs replacement, disassemble the first filter unit 200 and manually remove the second filter element 320 directly from the tray cover 310 for cleaning or replacement. When cleaning the tray cover 310, disassemble the first filter unit 200, disassemble the second filter unit 300, and then remove the second filter element 320 from the tray cover 310, allowing for cleaning of the tray cover 310. When cleaning the fan blades of the fan assembly 120, successively disassemble the first filter unit 200 and the second filter unit 300, allowing for removal of the fan assembly 120 from the main body 100 and cleaning of the fan blades of the fan assembly 120. When the main body 100 or the rear cover 400 needs to be cleaned, the first filter unit 200, the second filter unit 300, and the fan assembly 120 are disassembled in sequence, and then the rear cover 400 is removed from the main body 100, thereby allowing the main body 100 and the rear cover 400 to be cleaned separately. Preferably, both the rear cover 400 and the tray cover 310 can be cleaned by a dishwasher. Because the portable range hood is easy to disassemble, replacing and cleaning specific parts is very simple, making this portable range hood convenient for users.

[0075] In summary, this application provides a portable range hood comprising a main body, a fan assembly, and a filter device. The main body is tubular in shape, with an opening at each of its two ends. One opening at one end of the main body serves as the air inlet of the portable range hood, and the other opening at the other end serves as the air outlet. The fan assembly is disposed inside the main body to draw in cooking fumes from outside the portable range hood through the air inlet and exhaust the fumes through the air outlet. The filter device is disposed at the air inlet of the main body and is detachably connected to the main body. The portable range hood of this application can be easily disassembled and assembled by arranging the filter device, fan assembly, and main body, which are detachably connected to each other. Therefore, it is convenient for the user to clean the portable range hood, and the portable range hood is easy to operate, simple to use, and more user-friendly.

[0076] It should be understood that the application of this application is not limited to the foregoing embodiments. For those skilled in the art, modifications or variations can obviously be made based on the foregoing description, and all such modifications or variations fall within the scope defined by the claims of this application.

Claims

1. A portable extractor hood, characterized in that The portable extractor hood includes: a main body, wherein the main body is in the form of a tube, and an opening is arranged at each of two end portions of the main body, the opening of one of the two end portions of the main body being an air inlet of the portable extractor hood, and the opening of the other of the two end portions of the main body being an air outlet of the portable extractor hood; a fan assembly, wherein the fan assembly is arranged inside the main body to suck in fume outside the portable extractor hood from the air inlet and discharge the fume from the air outlet; a filter device, wherein the filter device is arranged at the air inlet and is snap-fitted with the main body; an inner wall of the main body is further arranged with third snap protrusions, the third snap protrusions are arranged perpendicularly to the inner wall of the main body, and a plurality of the third snap protrusions are arranged on the inner wall of the main body at the same interval; the third snap protrusion is a plate-shaped snap protrusion extending in the axial direction of the main body.

2. The portable extractor hood of claim 1, wherein, The filter device includes: a first filter unit arranged at the air inlet and configured to filter oil droplets in the fume; and a second filter unit arranged between the first filter unit and the fan assembly and configured to filter solid particles in the fume, wherein the first filter unit is detachably connected to the second filter unit, and the second filter unit is snap-fitted with the main body.

3. The portable extractor hood of claim 2, wherein, The first filter unit includes: a front cover arranged at the air inlet; a snap cover, wherein the snap cover is arranged between the front cover and the fan assembly and is snap-fitted with the front cover; and a first filter member snap-fitted between the front cover and the snap cover and configured to filter oil droplets in the fume.

4. The portable extractor hood of claim 3, wherein, The first filter member is a metal mesh.

5. The portable extractor hood according to claim 3 or 4, wherein, The front cover is arranged with a first snap groove, the snap cover is arranged with a first snap protrusion corresponding to the first snap groove, and the snap cover is snap-fitted with the front cover through the snap-fitting of the first snap protrusion of the snap cover with the first snap groove of the front cover.

6. The portable extractor hood according to any one of claims 3 to 5, wherein, The front cover is arranged with a first magnetic member facing the second filter unit, the second filter unit is arranged with a second magnetic member corresponding to the first magnetic member, and the first filter unit is detachably connected to the second filter unit through the magnetic force between the first magnetic member and the second magnetic member.

7. The portable extractor hood according to any one of claims 2 to 6, wherein, The second filter unit includes: a tray cover arranged between the first filter unit and the fan assembly and arranged inside the main body; and a second filter member snap-fitted in the tray cover and configured to filter solid particles in the fume. The second filter member is activated carbon filter cotton.

8. The portable extractor hood of claim 7, wherein, ​ 9. The portable extractor hood according to claim 7 or 8, wherein, The second filter member is arranged between the first filter unit and the tray cover, the second filter member is exposed when the first filter unit is detached from the second filter unit and removed through the air inlet of the portable extractor hood, and can be detached from the tray cover and removed through the air inlet of the portable extractor hood.

10. The portable extractor hood according to any one of claims 7 to 9, wherein, The tray cover includes a tray cover sidewall that cooperates with the inner wall of the main body, the tray cover sidewall is arranged with a second buckle groove, the main body is arranged with a second buckle protrusion corresponding to the second buckle groove, and the second filter unit is detachably connected to the main body through the buckle cooperation of the second buckle groove and the second buckle protrusion of the main body.

11. The portable extractor hood of claim 10, wherein, The tray cover sidewall is arranged with a second magnetic member facing the first filter unit, the first filter unit is arranged with a first magnetic member corresponding to the second magnetic member, and the first filter unit is detachably connected to the second filter unit through the magnetic force between the first magnetic member and the second magnetic member.

12. The portable extractor hood according to claim 10 or 11, wherein, The tray cover sidewall is arranged with a fourth buckle protrusion, and the second filter member is buckle-fitted between the fourth buckle protrusion and the tray cover.

13. The portable extractor hood according to any one of claims 1 to 12, further comprising: a rear cover arranged at the air outlet and detachably connected to the main body; and a base arranged perpendicularly to the main body and below the main body and configured to support the main body.

14. The portable extractor hood of claim 13, wherein, The rear cover is in the form of a circular grid divided into a plurality of sectorial portions by radial rods, each of the sectorial portions includes a set of straight parallel rods, wherein a plurality of sets of straight parallel rods extend in four or more different directions.

15. The portable extractor hood according to claim 13 or 14, wherein, A rechargeable battery for powering the fan assembly is arranged in the base. The second filter member is arranged between the first filter unit and the tray cover, the second filter member is exposed when the first filter unit is detached from the second filter unit and removed through the air inlet of the portable extractor hood, and can be detached from the tray cover and removed through the air inlet of the portable extractor hood. The tray cover includes a tray cover sidewall that cooperates with the inner wall of the main body, the tray cover sidewall is arranged with a second buckle groove, the main body is arranged with a second buckle protrusion corresponding to the second buckle groove, and the second filter unit is detachably connected to the main body through the buckle cooperation of the second buckle groove and the second buckle protrusion of the main body. The tray cover sidewall is arranged with a second magnetic member facing the first filter unit, the first filter unit is arranged with a first magnetic member corresponding to the second magnetic member, and the first filter unit is detachably connected to the second filter unit through the magnetic force between the first magnetic member and the second magnetic member. The tray cover sidewall is arranged with a fourth buckle protrusion, and the second filter member is buckle-fitted between the fourth buckle protrusion and the tray cover.

13. The portable extractor hood according to any one of claims 1 to 12, further comprising: a rear cover arranged at the air outlet and detachably connected to the main body; and a base arranged perpendicularly to the main body and below the main body and configured to support the main body. The rear cover is in the form of a circular grid divided into a plurality of sectorial portions by radial rods, each of the sectorial portions includes a set of straight parallel rods, wherein a plurality of sets of straight parallel rods extend in four or more different directions. A rechargeable battery for powering the fan assembly is arranged in the base.

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