Portable range hood

Abstract

The utility model discloses a portable range hood. The portable range hood comprises a body, a fan assembly, a first filtering device and a second filtering device, the body is a cylinder with two open ends, the opening at one end is an air inlet of the portable range hood, the opening at the other end is an air outlet of the portable range hood, and a first connecting device is arranged at the air outlet; the fan assembly is arranged in the body so as to suck oil smoke outside the portable range hood from the air inlet and discharge the oil smoke from the air outlet; the first filtering device is fixed at the air inlet; the second filtering device is arranged at the air outlet, a second connecting device is arranged on the side, facing the body, of the second filtering device, and the second connecting device is matched with the first connecting device to achieve detachable connection between the second filtering device and the body. By arranging the detachable second filtering device, a user can adjust the oil fume filtering and purifying capacity according to needs, operation is easy, the two hands of the user can be prevented from being contaminated with oil stains, and use is convenient, fast and comfortable.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a portable range hood. Background Art

[0002] Portable range hoods are ideal for outdoor barbecues, camping, and other occasions due to their portability and ease of use. However, existing portable range hoods often only have a fixed filter device on one side of the fan assembly, preventing users from adjusting the overall filtration capacity of the range hood as needed. Furthermore, replacing the filter device is cumbersome and can easily stain the user's hands with oil, making it difficult to use and highly polluting, resulting in a poor user experience.

[0003] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a portable range hood to solve the problems in the prior art that users cannot adjust the filtering capacity according to their needs, and that replacing the filter device is troublesome and polluting.

[0005] The technical solution of the utility model is as follows:

[0006] The utility model discloses a portable range hood, which comprises:

[0007] The main body is a cylindrical configuration with openings at both ends, one opening being an air inlet of the portable range hood, and the other opening being an air outlet of the portable range hood, wherein a first connecting device is provided at the air outlet;

[0008] a fan assembly, the fan assembly being disposed inside the body to suck the oil smoke outside the portable range hood from the air inlet and discharge it from the air outlet;

[0009] a first filter device, the first filter device being fixed at the air inlet; and

[0010] A second filter device is provided at the air outlet, and a second connecting device is provided on the side of the second filter device facing the main body. The second connecting device cooperates with the first connecting device to realize a detachable connection between the second filter device and the main body.

[0011] In one embodiment, the second filtering device comprises:

[0012] A main body, the main body being an annular structure, and the second connecting device is provided on a side of the main body facing the main body;

[0013] A filter is detachably arranged at the center of the main body.

[0014] In one embodiment, the second filtering device further comprises:

[0015] The filter mounting sleeve is an annular structure, and both ends of the filter mounting sleeve extend radially inward to form a clamping protrusion to clamp and fix the filter inside the filter mounting sleeve; wherein the outer diameter of the filter mounting sleeve is adapted to the inner diameter of the main body to accommodate the filter mounting sleeve inside the main body.

[0016] In one embodiment, the side surface of the filter installation sleeve extends radially outward to form a clamping piece to achieve a clamping connection between the filter installation sleeve and the main body.

[0017] In one embodiment, the filter installation sleeve extends axially to form a handle to facilitate assembly and disassembly of the filter installation sleeve and the main body.

[0018] In one embodiment, the body comprises:

[0019] a handle, the handle being arranged on a side away from the body to facilitate assembly and disassembly of the second connecting device and the body;

[0020] A card slot, the card slot being arranged corresponding to the card holder on the filter mounting sleeve to cooperate with the card holder connection between the filter mounting sleeve and the main body;

[0021] A card cover, the card cover is arranged on one side of the main body and is connected to the main body by a clamping connection;

[0022] A baffle is arranged on the other side of the main body relative to the card cover, and the baffle cooperates with the card cover to accommodate the filter mounting sleeve inside the main body.

[0023] In one embodiment, the card cover is further provided with a yield portion to allow the second connecting device to extend and cooperate with the first connecting device to achieve a detachable connection between the second filter device and the body when the card cover is arranged on one end of the body facing the body.

[0024] In one embodiment, the second filtering device further comprises:

[0025] The filter cover cooperates with the main body to fix the filter at the center position of the main body, and the filter cover is provided with a filter grid corresponding to the filter to allow oil smoke to pass through, and the density of the filter grid is less than the grid density at the air outlet on the main body.

[0026] In one embodiment, the portable range hood further comprises:

[0027] A third filter device is detachably disposed between the first filter device and the fan assembly.

[0028] In one embodiment, the second connecting device is a magnet, and the first connecting device is an iron sheet, and the detachable connection between the second filtering device and the main body is achieved through magnetic force.

[0029] In summary, the utility model discloses a portable range hood, comprising a main body, a fan assembly, a first filter device and a detachable second filter device. The main body is a cylindrical arrangement with openings at both ends, one end opening being the air inlet of the portable range hood, and the other end opening being the air outlet of the portable range hood, and a first connecting device is provided at the air outlet; the fan assembly is provided inside the main body to achieve the goal of sucking in the oil smoke outside the portable range hood from the air inlet and discharging it from the air outlet; the first filter device is fixed at the air inlet; the second filter device is provided at the air outlet, and a second connecting device is provided on the side of the second filter device facing the main body, and the second connecting device cooperates with the first connecting device to achieve the detachable connection between the second filter device and the main body. By providing a detachable second filter device, the user can disassemble and assemble it as needed to adjust the filtering and purification capacity of the oil smoke. The operation is simple and can prevent the user's hands from being contaminated with oil. It is convenient, quick and comfortable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of the portable range hood of the present invention.

[0031] Figure 2 This is a three-dimensional view of the portable range hood of the present invention from another angle.

[0032] Figure 3 It is a right side sectional view of the portable range hood of the present invention.

[0033] Figure 4 This is an explosion diagram of an embodiment of the portable range hood of the present invention.

[0034] Figure 5 This is an explosion diagram of another embodiment of the portable range hood of the present invention.

[0035] Figure 6 This is a schematic exploded view of another embodiment of the portable range hood of the present invention at another angle.

[0036] Figure 7This is a schematic diagram of another embodiment of the portable range hood of the present invention when the second filter device is not installed relative to the main body.

[0037] Figure 8 This is an explosion diagram of another embodiment of the portable range hood of the present invention.

[0038] Figure 9 This is a schematic exploded view of another embodiment of the portable range hood of the present invention at another angle.

[0039] Figure 10 This is an explosion diagram of the second filter device in another embodiment of the portable range hood of the present invention.

[0040] Figure 11 This is a schematic diagram of the installation of the second filter device in another embodiment of the portable range hood of the present invention.

[0041] Figure 12 This is a schematic diagram of the installation of the filter mounting sleeve and the main body in another embodiment of the portable range hood of the present invention. DETAILED DESCRIPTION

[0042] The present invention provides a portable range hood. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] It should be noted that the terms "center", "up", "down", "left", "right", "inside", "outside", "vertical", "horizontal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation or must be constructed in a specific orientation, and cannot be understood as a limitation on the present invention.

[0044] In addition, unless there is a special limitation on the articles in the text, "one" and "the" can refer to a single one or multiple ones. If there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] Portable range hoods have a wide range of uses. Being portable, they can be used to filter oil fumes and avoid environmental pollution, whether camping or barbecuing outdoors. However, portable range hoods require different concentrations of oil fumes for different scenarios. Using only fixed filters will not balance the flow rate of oil fumes and the efficiency of oil fume purification. This results in an inability to quickly process light oil fumes, while heavy oil fumes are prone to being discharged before being completely purified. Furthermore, fixing the filter in the portable range hood makes replacing the filter complicated and easily contaminated, making it difficult for users to cleanly handle the filter.

[0046] In view of this problem, the utility model discloses a portable range hood, such as Figure 4 、 Figure 5 and Figure 8As shown, the portable range hood includes a body 100, a fan assembly 200 disposed within the body, a first filter device 300 disposed on one side of the body, and a second filter device 400 disposed on the other side of the body. The body 100 is open at both ends to form a hollow cylindrical structure, forming an oil fume passage 120 within the body 100. One end of the body 100 forms the air inlet 121 of the portable range hood, and the other end forms the air outlet 122 of the portable range hood. A first connecting device 110 is provided at the air outlet 122. The first connecting device 110 cooperates with a second connecting device 420 disposed on the second filter device 400 to achieve a detachable connection between the second filter device 400 and the body 100. Optionally, the first connecting device 110 is an iron sheet, and the second connecting device 420 is a magnet, achieving detachable connection between the second filter device 400 and the body 100 through magnetic force. By providing a second filter device 400 that is convenient for installation and disassembly relative to the main body 100, the user can adjust the air volume and oil fume filtering capacity of the portable range hood by disassembling and assembling the second filter device 400. The disassembly and assembly process is quick and easy to operate, will not cause pollution to the user's hands, and is easy to market.

[0047] Specifically, the main body 100 includes a front cover 130 positioned at the air inlet 121, a grid 140 positioned at the air outlet 122, and a support portion 150 positioned below. The support portion 150 ensures the stable placement of the portable range hood. The front cover 130 and grid 140 house the fan assembly 200 within the oil fume duct 120. When the fan assembly 200 begins operation, it draws air in through the front cover 130 at the air inlet 121, passes through the oil fume duct 120, and is then discharged through the grid 140.

[0048] Alternatively, as Figure 3 As shown, a counterweight 151 is provided in the support portion 150, and the counterweight 151 ensures that the portable range hood is stably placed in any scenario. Figure 2 and Figure 3 As shown, the support portion 150 is provided with a battery compartment 152 and a power socket 153, so that the user can use the portable range hood in scenarios with or without an external power supply. Figure 1 and Figure 2 As shown, a handle 160 is pivotally connected to the body 100 , and the handle 160 can rotate around the body 100 to provide a structure that is convenient for users to carry when the portable range hood needs to be moved, making the portable range hood more convenient and easy to use.

[0049] Furthermore, if Figure 1 and Figure 3 As shown, the first filter device 300 is clamped at the center of the front cover 130, and the front cover 130 is clamped and connected to the main body 100, so that the user can remove the front cover 130 from the main body 100 to clean or replace the first filter device 300. Furthermore, a wrench 131 is provided on the front cover 130 to facilitate the user to install or remove the front cover 130. Furthermore, after the first filter device 300 is clamped at the center of the front cover 130, it is arranged perpendicular to the path of the airflow to ensure that the oil smoke sucked into the oil smoke channel 120 passes through the first filter device 300. Optionally, the first filter device 300 is an activated carbon filter, a stainless steel filter or a filter formed of other materials to quickly absorb particles and droplets in the oil smoke without affecting the airflow rate.

[0050] In one embodiment, Figure 4 As shown, the portable range hood also includes a third filter device 500. The third filter device 500 is held between the first filter device 300 and the fan assembly 200 and positioned perpendicular to the airflow path to further purify the oil smoke passing through the first filter device 300, thereby enhancing the oil smoke purification effect. Because the third filter device 500 is held between the first filter device 300 and the fan assembly 200, the third filter device 500 can be easily and quickly removed for cleaning or replacement by removing the front cover 130. This operation is simple, clean, and will not contaminate the user's hands. Furthermore, for light oil smoke scenarios, the third filter device 500 can be removed, leaving only the first filter device 300 in front of the fan assembly 200 to avoid affecting the airflow rate and dispersing the airflow through the oil smoke passage 120. This allows the oil smoke to pass through the fan assembly 200 more concentratedly through the second filter device 400, achieving more efficient oil smoke filtration and purification. For heavy oil smoke scenarios, the third filter device 500 can be installed to increase the oil smoke purification effect, reduce the burden on the first filter device 300 and the second filter device 400, and extend the service life of the first filter device 300 and the second filter device 400. Optionally, the third filter device 500 is an activated carbon filter, a stainless steel filter, or a filter formed of other materials. The third filter device 500 can use a different filter structure from the first filter device 300 to adsorb pollutants of different sizes and shapes in the oil smoke.

[0051] Furthermore, if Figure 6 and Figure 9As shown, the second filter device 400 is arranged at the air outlet 122 and corresponds to the grid 140, and the second filter device 400 is perpendicular to the air flow path of the oil smoke through the oil smoke channel 120 to ensure that all the oil smoke output from the air outlet 122 passes through the second filter device 400 before being discharged from the portable range hood.

[0052] In one embodiment, Figure 4 As shown, the second filter device 400 includes a main body 410 and a filter 430, wherein the main body 410 is annular in structure. The filter 430 is fixed at the center of the main body 410 and is arranged perpendicular to the axial direction of the main body 410, so as to ensure that the filter 430 is arranged perpendicular to the airflow path of the oil smoke when the second filter device 400 is connected to the main body 100. The second connecting device 420 is provided on the side of the main body 410 facing the main body 100. The second connecting device 420 cooperates with the first connecting device 110 on the main body 100 to realize the assembly and disassembly of the second filter device 400 from the main body 100. The handle 411 is provided on the side of the main body 410 away from the main body 100 to facilitate the user to install or remove the second filter device 400 from the main body 100. Optionally, the second connecting device 420 is a magnet, and the first connecting device 110 is an iron sheet. The second filter device 400 is detachably connected to the main body 100 through magnetic force, so that the user can install or remove the second filter device 400 according to different scenarios to adjust the filtering and purification effect of the portable range hood on oil fumes.

[0053] Specifically, the filter 430 is an activated carbon filter, a stainless steel filter, or a filter formed of other materials. The filter 430 can use a different filtration structure than the first filter device 300 and the third filter device 500 to adsorb pollutants of different sizes and shapes in the oil smoke. Furthermore, by adjusting the material, thickness, area, density, and / or porosity of the filter 430, the filter 430 can be made to have a stronger oil smoke filtration and purification capability than the first filter device 300 and the third filter device 500. This ensures that the installation of the second filter device 400 can improve the oil smoke purification capability of the portable range hood, making it convenient for the user to install or remove the second filter device 400 as needed to adjust the filtering and purification effect of the portable range hood on the oil smoke. Optionally, the filter 430 is a plasma filter.

[0054] In another embodiment, Figure 5 and Figure 6As shown, the second filter device 400 includes a main body 410, a filter cover 450, and a filter 430, wherein the filter cover 450 is connected to the main body 410 by a clamping connection to fix the filter 430 inside the second filter device 400. Furthermore, the filter cover 450 is disposed on a side of the main body 410 away from the main body 100, and a handle 411 is provided on the filter cover 450 so that after the filter cover 450 is clamped to the main body 410, the user can quickly install the second filter device 400 on or remove it from the main body 100 by using the handle 411.

[0055] Specifically, if Figure 5 As shown, a second connecting device 420 is provided on the side of the main body 410 facing the main body 100. The second connecting device 420 cooperates with the first connecting device 110 on the main body 100 to achieve the second filter device 400 and the main body 100. Optionally, the second connecting device 420 is a magnet and the first connecting device 110 is an iron sheet. The magnetic force achieves the detachable connection between the second filter device 400 and the main body 100, thereby facilitating the user to install or remove the second filter device 400 according to different scenarios and adjust the filtering and purification effect of the portable range hood on oil smoke.

[0056] Furthermore, if Figure 6 As shown, the main body 410 has an annular structure and is arranged corresponding to the grid 140 at the air outlet 122 of the main body 100 to ensure that all oil smoke passing through the oil smoke channel 120 and output from the air outlet 122 passes through the main body 410 and enters the second filter device 400. Furthermore, the filter cover 450 is hollowed out at the position corresponding to the filter 430 to form a filter grid 451, which performs the final step of adsorption on the oil smoke that passes through the filter 430, thereby improving the filtering and purification effect of the second filter device 400 on the oil smoke. Specifically, the grid density of the filter grid 451 is less than the grid density of the grid 140 at the air outlet 122, to ensure that the purified oil smoke can be smoothly discharged from the second filter device 400.

[0057] Specifically, the filter 430 is an activated carbon filter, a stainless steel filter, or a filter formed of other materials. The filter 430 can use a different filtration structure than the first filter device 300 and the third filter device 500 to adsorb pollutants of different sizes and shapes in the oil smoke. Furthermore, by adjusting the material, thickness, area, density, and / or porosity of the filter 430, the filter 430 can be made to have a stronger oil smoke filtration and purification capability than the first filter device 300 and the third filter device 500. This ensures that the installation of the second filter device 400 can improve the oil smoke purification capability of the portable range hood, making it convenient for the user to install or remove the second filter device 400 as needed to adjust the filtering and purification effect of the portable range hood on the oil smoke. Optionally, the filter 430 is a plasma filter.

[0058] In yet another embodiment, Figure 7 、 Figure 8 and Figure 9 As shown, the second filter device 400 includes a main body 410, a filter 430, and a filter mounting sleeve 440. The main body 410 and the filter mounting sleeve 440 are both annular structures, and the outer diameter of the filter mounting sleeve 440 is adapted to the inner diameter of the main body 410, so that the filter mounting sleeve 440 can be conveniently clamped inside the main body 410. Furthermore, the filter mounting sleeve 440 accommodates the filter 430, and when the filter mounting sleeve 440 is clamped in the main body 410, the filter 430 is arranged perpendicular to the airflow path of the oil smoke in the oil smoke channel 120, thereby ensuring that after the second filter device 400 is connected to the main body 100, all the oil smoke output from the air outlet 122 enters the second filter device 400 and passes through the filter 430, achieving further filtration and purification of the oil smoke.

[0059] Specifically, if Figure 10 and Figure 11 As shown, both ends of the filter mounting sleeve 440 extend radially toward the center of the filter mounting sleeve 440, and a circle of latching protrusions 441 are formed at each end of the filter mounting sleeve 440. The filter mounting sleeve 440 accommodates the filter 430 in the center position through the latching protrusions 441 and ensures the specific installation direction of the filter 430. Optionally, the filter mounting sleeve 440 is a flexible silicone sleeve, so that the filter 430 can be easily inserted between the two circles of latching protrusions 441 and removed from the filter mounting sleeve 440, making it easier for the user to clean and replace the filter 430.

[0060] Specifically, the filter 430 is an activated carbon filter, a stainless steel filter, or a filter formed of other materials. The filter 430 can use a different filtration structure than the first filter device 300 and the third filter device 500 to adsorb pollutants of different sizes and shapes in the oil smoke. Furthermore, by adjusting the material, thickness, area, density, and / or porosity of the filter 430, the filter 430 can be made to have a stronger oil smoke filtration and purification capability than the first filter device 300 and the third filter device 500. This ensures that the installation of the second filter device 400 can improve the oil smoke purification capability of the portable range hood, making it convenient for the user to install or remove the second filter device 400 as needed to adjust the filtering and purification effect of the portable range hood on the oil smoke. Optionally, the filter 430 is a plasma filter.

[0061] Furthermore, if Figure 10 and Figure 11 As shown, a retaining member 442 is formed on the outer wall of the filter mounting sleeve 440 extending radially outward, so that the outer diameter of the filter mounting sleeve 440 is increased at the retaining member 442 to facilitate the retaining and fixing of the filter mounting sleeve 440 to the main body 410. Furthermore, a handle 443 is formed on the filter mounting sleeve 440 extending axially to facilitate the user to remove the filter mounting sleeve 440 from the main body 410, making the disassembly and assembly of the second filter device 400 more convenient and quick.

[0062] Specifically, if Figure 11 and Figure 12 As shown, a card slot 412 is provided on the inner wall of the main body 410 corresponding to the clamping piece 442 of the filter mounting sleeve 440, so that the inner diameter of the main body 410 at the card slot 412 matches the outer diameter of the filter mounting sleeve 440 at the card slot 442, and the card slot 412 accommodates the clamping piece 442 to achieve the clamping of the filter mounting sleeve 440 at the center position of the main body 410.

[0063] Furthermore, if Figure 8As shown, a second connecting device 420 is provided on the side of the main body 410 facing the main body 100. The second connecting device 420 cooperates with the first connecting device 110 on the main body 100 to enable the second filter device 400 to be installed and removed from the main body 100. A handle 411 is provided on the side of the main body 410 away from the main body 100 to facilitate the user to install or remove the second filter device 400 from the main body 100. Optionally, the second connecting device 420 is a magnet and the first connecting device 110 is an iron sheet. The magnetic force achieves the detachable connection between the second filter device 400 and the main body 100, thereby facilitating the user to install or remove the second filter device 400 according to different scenarios and adjust the filtering and purification effect of the portable range hood on oil smoke.

[0064] Furthermore, if Figure 7 and Figure 11 As shown, the main body 410 secures the filter mounting sleeve 440 at the center of the main body 410 via a latch 413 and a baffle 416. The latch 413 is detachably connected to the main body 410 via a buckle 415, and the baffle 416 is a circle of protrusions extending radially toward the center of the main body 410 from one side of the main body 410. The latch 413 and the baffle 416 cooperate to secure the filter 430 at the center of the second filter device 400, ensuring that the filter 430 is positioned perpendicular to the airflow path of the oil smoke within the oil smoke passage 120. This ensures that, after the second filter device 400 is connected to the main body 100, all oil smoke output from the air outlet 122 enters the second filter device 400 and passes through the filter 430, further filtering and purifying the oil smoke.

[0065] Optionally, the installation method of the filter mounting sleeve 440 relative to the main body 410 can be adjusted by changing the relative position of the latch cover 413 and the baffle 416 on the main body 410. When the baffle 416 is a raised ring formed on the side of the main body 410 away from the body 100, the latch cover 413 is correspondingly positioned on the side of the main body 410 facing the body 100. In this case, the latch cover 413 is provided with a clearance portion 414 at the position corresponding to the second connecting device 420, allowing the second connecting device 420 to extend and cooperate with the first connecting device 110 to achieve a detachable connection between the second filter device 400 and the main body 100. Furthermore, in this arrangement, the filter mounting sleeve 440 needs to be removed from the side of the main body 410 facing the body 100. That is, the second filter device 400 must first be removed from the body 100 before the filter mounting sleeve 440 and the filter 430 are removed, thereby making the placement of the filter 430 in the second filter device 400 more stable. In another configuration, the baffle 416 is a circle of protrusions formed on the side of the main body facing the body 100, and the latch 413 is correspondingly disposed on the side of the main body away from the body 100. In this case, the filter mounting sleeve 440 is disassembled from the side of the main body 410 away from the body 100. By removing the latch 413 from the main body 410, the filter mounting sleeve 440 can be removed from the main body 410 to clean or replace the filter 430, which is convenient for the user.

[0066] The utility model increases the filtering structure on the portable range hood by providing a second filter device detachably connected to the main body. At the same time, the user can disassemble and assemble the second filter device according to the needs of the cooking process or kitchen conditions, so as to timely adjust the filtering capacity of the portable range hood, and the filtering capacity can be adjusted without turning off the portable range hood, which is convenient and quick to operate. At the same time, the disassembly and assembly is aimed at the entire second filter device, and the user does not need to touch the filter that absorbs oil fume particles. Therefore, the user can quickly and cleanly replace the filter, avoid getting oil stains on the user's hands, and use is more convenient and comfortable.

[0067] In summary, the utility model discloses a portable range hood, comprising a main body, a fan assembly, a first filter device and a detachable second filter device. The main body is a cylindrical arrangement with openings at both ends, one end opening being the air inlet of the portable range hood, and the other end opening being the air outlet of the portable range hood, and a first connecting device is provided at the air outlet; the fan assembly is provided inside the main body to achieve the goal of sucking in oil smoke outside the portable range hood from the air inlet and discharging it from the air outlet; the first filter device is fixed at the air inlet; the second filter device is provided at the air outlet, and a second connecting device is provided on the side of the second filter device facing the main body, and the second connecting device cooperates with the first connecting device to achieve the detachable connection between the second filter device and the main body. By providing a detachable second filter device, the user can disassemble and assemble it as needed to adjust the filtering and purification capacity of the oil smoke. The replacement operation is simple and can prevent the user's hands from being contaminated with oil. It is convenient, quick and comfortable to use.

[0068] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A portable range hood, characterized in that: include: The main body is a cylindrical configuration with openings at both ends, one opening being an air inlet of the portable range hood, and the other opening being an air outlet of the portable range hood, wherein a first connecting device is provided at the air outlet; a fan assembly, the fan assembly being disposed inside the body to suck the oil smoke outside the portable range hood from the air inlet and discharge it from the air outlet; a first filter device, the first filter device being fixed at the air inlet; as well as A second filter device is provided at the air outlet, and a second connecting device is provided on the side of the second filter device facing the main body. The second connecting device cooperates with the first connecting device to realize a detachable connection between the second filter device and the main body.

2. The portable range hood according to claim 1, characterized in that: The second filtering device comprises: A main body, the main body being an annular structure, and the second connecting device is provided on a side of the main body facing the main body; A filter is detachably arranged at the center of the main body.

3. The portable range hood according to claim 2, characterized in that: The second filtering device further comprises: The filter mounting sleeve is an annular structure, and both ends of the filter mounting sleeve extend radially inward to form a clamping protrusion to clamp and fix the filter inside the filter mounting sleeve; wherein the outer diameter of the filter mounting sleeve is adapted to the inner diameter of the main body to accommodate the filter mounting sleeve inside the main body.

4. The portable range hood according to claim 3, characterized in that: The side surface of the filter installation sleeve extends radially outward to form a clamping piece to achieve a clamping connection between the filter installation sleeve and the main body.

5. The portable range hood according to claim 3, characterized in that: The filter installation sleeve extends axially to form a handle to facilitate assembly and disassembly of the filter installation sleeve and the main body.

6. The portable range hood according to claim 4, characterized in that: The subject includes: a handle, the handle being arranged on a side away from the body to facilitate assembly and disassembly of the second connecting device and the body; A card slot, the card slot being arranged corresponding to the card holder on the filter mounting sleeve to cooperate with the card holder connection between the filter mounting sleeve and the main body; A card cover, the card cover is arranged on one side of the main body and is connected to the main body by a clamping connection; A baffle is arranged on the other side of the main body relative to the card cover, and the baffle cooperates with the card cover to accommodate the filter mounting sleeve inside the main body.

7. The portable range hood according to claim 6, characterized in that: The card cover is also provided with a yielding portion, so that when the card cover is arranged on one end of the main body facing the main body, the second connecting device is allowed to extend and cooperate with the first connecting device to realize the detachable connection between the second filter device and the main body.

8. The portable range hood according to claim 2, characterized in that: The second filtering device further comprises: The filter cover cooperates with the main body to fix the filter at the center position of the main body, and the filter cover is provided with a filter grid corresponding to the filter to allow oil smoke to pass through, and the density of the filter grid is less than the grid density at the air outlet on the main body.

9. The portable range hood according to claim 1, characterized in that: The portable range hood further comprises: A third filter device is detachably disposed between the first filter device and the fan assembly.

10. The portable range hood according to claim 1, characterized in that: The second connecting device is a magnet, and the first connecting device is an iron sheet, and the detachable connection between the second filtering device and the main body is achieved through magnetic force.

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