CN220436601U - Fume filter and range hood - Google Patents

Abstract

The utility model relates to a lampblack filtering device and a range hood, wherein the lampblack filtering device comprises an oil absorption filter cylinder and at least one oil absorption filter ball, the oil absorption filter ball comprises a filter element, the oil absorption filter ball is detachably arranged in the oil absorption filter cylinder, the cylinder wall of the oil absorption filter cylinder and the ball wall of the oil absorption filter ball are both arranged to supply lampblack and can absorb lampblack particles, so that a multi-layer filtering structure is jointly formed, multiple interception and filtration can be realized, the contact surfaces of the oil absorption filter cylinder and the oil absorption filter ball with lampblack are cambered surfaces and allow the lampblack to pass, the contact area with the lampblack is increased, the cylinder wall of the oil absorption filter cylinder and the ball wall of the oil absorption filter ball can realize lampblack interception and lampblack particle absorption, and the filter element can further absorb lampblack; the oil absorption filter ball can be detachably arranged in the oil absorption filter cartridge, so that cleaning or replacement is facilitated, and accumulation of oil dirt caused by long-time filtration can be avoided, and the integral filtering effect of the oil smoke filtering device is improved.

Description

Fume filter and range hood

Technical Field

The utility model belongs to the technical field of range hoods, and particularly relates to a range hood and an oil fume filtering device.

Background

As an indispensable kitchen appliance in modern home life, a range hood is used to suck the oil smoke generated during cooking and discharge the oil smoke to the outside, thereby purifying the kitchen environment. The existing range hood with wider use comprises an upper exhaust type range hood, and in the working process of the upper exhaust type range hood, the oil smoke enters a fan system after flowing through a filter screen and is exhausted into a public flue by means of the fan system.

The existing filter screen of the range hood is provided with a plurality of through holes on a single-layer metal net, and oil smoke is intercepted and condensed when flowing through the metal net, but the interception effect of the mode of filtering and intercepting the oil smoke is poor, so that a large amount of oil smoke can enter the fan, oil dirt is easily accumulated, bacteria are bred to generate peculiar smell, and the performance of the range hood can be influenced; the other is that the multi-layer metal net is mutually nested to realize multiple collision and interception to the oil smoke, although the oil smoke interception effect is improved, the multi-layer metal net is overlapped to cause the difficulty of cleaning oil dirt, and the multi-layer metal net can reduce the smoke inlet efficiency to further influence the performance of the range hood, so that the existing range hood has the problem of poor oil smoke filtering effect.

Disclosure of Invention

The utility model aims to at least solve the problem of poor oil smoke filtering effect of the conventional range hood. The aim is achieved by the following technical scheme:

the first aspect of the utility model provides a lampblack filtering device, which is used in a lampblack absorber, and comprises an oil absorption filter cylinder and at least one oil absorption filter ball, wherein the oil absorption filter ball comprises a filter core, the oil absorption filter ball is detachably arranged in the oil absorption filter cylinder, and the cylinder wall of the oil absorption filter cylinder and the spherical wall of the oil absorption filter ball are both arranged to be capable of supplying lampblack and absorbing lampblack particles.

According to the oil smoke filtering device provided by the embodiment of the utility model, the oil suction filter cylinder and the oil suction filter ball form a multi-layer filtering structure together, so that multiple interception and filtration can be realized, the contact surfaces of the oil suction filter cylinder and the oil suction filter ball with oil smoke are cambered surfaces and allow the oil smoke to pass through, the contact area with the oil smoke is increased, the oil smoke interception and adsorption of oil smoke particles can be realized by the cylinder wall of the oil suction filter cylinder and the spherical wall of the oil suction filter ball, the filter element in the oil suction filter ball can further adsorb, and the integral filtering effect of the oil smoke filtering device is improved; the oil absorption filter ball can be detachably arranged in the oil absorption filter cartridge, so that cleaning or replacement is facilitated, and accumulation of oil dirt caused by long-time filtration can be avoided, and the integral filtering effect of the oil smoke filtering device is further improved.

In addition, the fume filtering device provided by the embodiment of the utility model can also have the following technical characteristics:

in some embodiments of the present utility model, a wall of the oil absorption filter cartridge is partially or entirely configured as a hollowed-out structure.

In some embodiments of the present utility model, a plurality of first oil smoke through holes are provided on a wall of the oil absorption filter cartridge, the first oil smoke through holes are provided along a radial direction of the oil absorption filter cartridge, and the plurality of first oil smoke through holes are uniformly distributed on the wall.

In some embodiments of the present utility model, the oil fume filter device further comprises a blocking cover connected to the open end of the oil suction filter cartridge to block the oil suction filter ball.

In some embodiments of the present utility model, the plugging cover is connected with the oil-absorbing filter cartridge through a screw, and a hand grip part is arranged on the outer side of the plugging cover to screw and pull the oil-smoke filtering device.

In some embodiments of the present utility model, the oil-absorbing filter balls are provided in plurality, and the plurality of oil-absorbing filter balls are arranged in the oil-absorbing filter cartridge along the axial direction of the oil-absorbing filter cartridge.

In some embodiments of the present utility model, the spherical shell of the oil absorbing filter ball comprises a first half shell and a second half shell, wherein the first half shell is buckled with the second half shell and is detachably connected.

In some embodiments of the present utility model, the spherical shell of the oil absorbing filter ball is configured as a plurality of ribs intersecting each other in a warp-weft manner, and a plurality of second oil smoke through holes are formed between the intersecting ribs.

In some embodiments of the utility model, the filter cartridge is removably disposed within the oil absorbing filter ball, the filter cartridge comprising a filter bag and activated carbon disposed within the filter bag.

A second aspect of the present utility model provides a range hood, the range hood comprising a main body and a fume filtering device according to any one of the above embodiments, the fume filtering device being mounted on the main body.

The range hood according to the embodiment of the utility model has the same advantages as the oil smoke filtering device provided in any of the above embodiments, and will not be described herein.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic structural view of a range hood;

fig. 2 is a left side view of the range hood;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

fig. 4 is a schematic structural view of a fume filter in the range hood;

fig. 5 is an exploded view of a fume filter assembly of the range hood;

FIG. 6 is a front view of the closure of FIG. 5;

fig. 7 is an exploded view of the oil absorbing filter ball of fig. 5.

The various references in the drawings are as follows:

100. a range hood;

110. a first air inlet chamber; 111. a first smoke inlet; 112. installing a round hole; 113. an air inlet cavity end cover; 114. a seal ring; 115. a first screw; 120. a second air inlet chamber; 121. a second smoke inlet; 130. a middle shell; 131. a volute cavity; 140. a volute; 150. a noise reduction cover; 160. an upper housing; 170. a diversion fan cover; 180. an air outlet seat; 190. a hose connector;

200. a fume filter;

210. an oil-absorbing filter cartridge; 211. a first oil smoke through hole; 220. an oil absorption filter ball; 221. a first half shell; 222. a second half shell; 223. a second oil smoke through hole; 224. a filter element; 230. a blocking cover; 231. a hand grip; 232. a second screw; 233. and (5) identification.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in fig. 1 to 5, an embodiment of the first aspect of the present utility model proposes a soot filtering device 200, the soot filtering device 200 includes an oil-absorbing filter cartridge 210 and at least one oil-absorbing filter ball 220, the oil-absorbing filter ball 220 includes a filter element 224, the oil-absorbing filter ball 220 is detachably disposed in the oil-absorbing filter cartridge 210, and both a wall of the oil-absorbing filter cartridge 210 and a wall of the oil-absorbing filter ball 220 are configured to be capable of supplying soot and adsorbing soot particles.

The oil fume filtering device 200 provided by the embodiment of the utility model comprises the oil fume filtering cylinder 210 and the oil fume filtering ball 220, a multi-layer filtering structure is formed, the contact surfaces of the oil fume filtering cylinder 210 and the oil fume filtering ball 220 with oil fume are cambered surfaces, the contact area with the oil fume is increased, the filter element 224 in the oil fume filtering ball 220 is arranged, the interception and adsorption effects are improved, and the oil fume filtering ball 220 is detachably arranged in the oil fume filtering cylinder 210 and is convenient to clean or replace, so that the accumulation of oil scale caused by long-time filtering can be avoided, the integral oil fume filtering effect of the oil fume filtering device 200 is further improved, and when the oil fume filtering device 200 provided by the embodiment is applied to the range hood 100, at least the problem that the oil fume filtering effect of the existing range hood is poor can be solved.

An embodiment of the second aspect of the present utility model provides a range hood 100, where the oil smoke filtering device 200 provided in the embodiment of the first aspect is used in the range hood 100 provided in the embodiment of the second aspect, and in order to facilitate understanding of the working process of the oil smoke filtering device 200, the following embodiments describe the oil smoke filtering device 200 and the range hood 100 in combination.

As shown in fig. 1 to 3, the range hood 100 includes a main body and at least one oil fume filtering device 200, one or more air inlet chambers are provided at the bottom of the main body, the oil fume filtering device 200 includes an oil fume filtering cylinder 210 and an oil fume filtering ball 220, the oil fume filtering ball 220 is detachably disposed in the oil fume filtering cylinder 210, and the oil fume filtering cylinder 210 may be detachably installed in the air inlet chambers and covers the air inlet openings of the air inlet chambers.

As shown in fig. 1 and 3, the main body of the range hood 100 sequentially includes, from bottom to top, an air intake cavity, a middle housing 130, a volute 140, a noise reduction cover 150, an upper housing 160 and a guide fan cover 170, and during the operation of the range hood 100, as shown by the arrow direction in fig. 3, oil smoke enters from the air intake of the air intake cavity, enters the middle housing 130 after being filtered by the oil smoke filtering device 200, is sucked into the volute cavity 131 of the middle housing 130 by the noise reduction cover 150, and is finally guided out by the guide fan cover 170.

As shown in fig. 1 and 3, in some embodiments of the present utility model, the bottom of the main body is provided with two air intake chambers, which are illustratively provided as a first air intake chamber 110 and a second air intake chamber 120 which are bilaterally symmetrical, the first air intake chamber 110 and the second air intake chamber 120 being adjacent to and connected by a self-tapping screw or the like, and being connected by a first screw 115 as shown in fig. 3. On the basis, the middle shell 130 is arranged above the first air inlet cavity 110 and the second air inlet cavity 120, the volute cavity 131 is arranged in the middle shell 130, the volute 140 is arranged in the volute cavity 131, the noise reduction cover 150 is arranged above the volute 140, the upper shell 160 is arranged above the middle shell 130, the guide wind cover 170 is arranged in the middle shell 130 and the upper shell 160, and the guide wind cover 170 is used as a connecting wind channel between the middle shell 130 and the upper shell 160 for enabling filtered gas to circulate to the outside.

Further, as shown in fig. 1 to 3, in some embodiments of the present utility model, the range hood 100 further includes an air outlet seat 180 and a hose connector 190, wherein the air outlet seat 180 is located at the air outlet side of the main body, and the air outlet seat 180 is illustratively connected to the top of the upper housing 160, and the hose connector 190 is connected to the air outlet seat 180 and is in communication with the interior of the upper housing 160, and the hose connector 190 is configured to connect an air outlet hose and thus communicate with an external flue, whereby the air guided by the air guide cover 170 is discharged to the external flue through the hose connector 190 and the air outlet hose.

On the basis of the above embodiment, the number of the oil smoke filtering devices 200 is two, and the two oil smoke filtering devices 200 are respectively matched with the two air inlet cavities. As shown in fig. 1 and 3, the oil-absorbing filter cartridges 210 of the two oil-smoke filtering devices 200 are respectively inserted into the first air inlet chamber 110 and the second air inlet chamber 120, the oil-absorbing filter cartridge 210 inserted into the first air inlet chamber 110 is communicated with the first smoke inlet 111 for contacting and filtering the oil smoke entering from the first smoke inlet 111, and the oil-absorbing filter cartridge 210 inserted into the second air inlet chamber 120 is communicated with the second smoke inlet 121 for contacting and filtering the oil smoke entering from the second smoke inlet 121.

As shown in fig. 1, the first air inlet chamber 110 and the second air inlet chamber 120 are respectively provided with a mounting circular hole 112 matched with the oil absorbing filter cartridge 210, the mounting circular holes 112 extend inwards from the outer side surface of the main body, that is, the main body is respectively provided with the mounting circular holes 112 inwards from the left side and the right side, the side surface of each mounting circular hole 112 is communicated with one smoke inlet, and the oil absorbing filter cartridge 210 is inserted in the mounting circular hole 112 along the horizontal direction, so that the oil smoke entering from the smoke inlet contacts with the cartridge side surface of the oil absorbing filter cartridge 210, the contact area is increased, and the oil smoke interception effect is improved. On this basis, as shown in fig. 2 and 3, the two sides of the main body are further provided with an air inlet cavity end cover 113 and a sealing ring 114, so as to further improve the side tightness.

Further, during the process of mounting or dismounting, the oil absorbing filter cartridge 210 can move axially in the mounting circular hole 112 and rotate around the axis, and in some embodiments of the present utility model, when the oil absorbing filter cartridge 210 rotates to a set angle in the mounting circular hole 112, the oil absorbing filter cartridge 210 can be in snap connection with the mounting circular hole 112, so as to ensure the stability after the connection between the oil absorbing filter cartridge 210 and the main body. Illustratively, the inner wall of the installation circular hole 112 may be provided with a connection groove, and the outer sidewall of the oil absorbing filter cartridge 210 may be provided with a connection block, so that an operator may engage the connection block with the connection groove by rotating the oil absorbing filter cartridge 210 after the bottom end of the oil absorbing filter cartridge 210 is engaged with the bottom end of the installation circular hole 112, thereby achieving connection and locking. The connection manner between the oil absorbing filter cartridge 210 and the mounting circular hole 112 is not particularly limited in this embodiment, and may be set according to actual circumstances.

According to the range hood 100 provided by the embodiment of the utility model, the oil smoke filtering device 200 is arranged at the air inlet cavity of the main body, the oil smoke inlet of the air inlet cavity can be covered by the oil smoke filtering cylinder 210 of the oil smoke filtering device 200, so that the interception effect of oil smoke is ensured, and the multi-layer filtering of the oil smoke filtering device 200 improves the filtering effect of the range hood 100; in this embodiment, the detachable arrangement of the oil absorption filter cartridge 210 on the main body is convenient for cleaning or replacing, so that the accumulation of oil dirt caused by long-time filtration can be avoided, and the filtering effect of the range hood 100 is further improved.

According to the above embodiment, referring to fig. 4 and 5, the oil smoke filtering device 200 includes an oil smoke filtering cylinder 210 and an oil smoke filtering ball 220, wherein the wall of the oil smoke filtering cylinder 210 and the wall of the oil smoke filtering ball 220 can both supply oil smoke and adsorb oil smoke particles, and for example, in order to ensure the oil smoke to pass through, the wall of the oil smoke filtering cylinder 210 is partially or completely provided with a hollow structure, further, in order to improve the oil smoke passing efficiency and the oil smoke particle adsorption effect, and in order to increase the contact area between the oil smoke filtering ball 220 and the oil smoke to further improve the filtering effect, the wall of the oil smoke filtering cylinder 210 is completely provided with a hollow structure.

On the basis of the above embodiment, as shown in fig. 4, a plurality of first oil smoke through holes 211 are provided on the wall of the oil absorption filter cartridge 210, and the sizes of the plurality of first oil smoke through holes 211 may be the same or different, and the shapes thereof may be circular, square or other shapes, which is not particularly limited in this embodiment. Taking the example that the plurality of first oil smoke through holes 211 are arranged as a plurality of round holes with the same diameter, the plurality of first oil smoke through holes 211 are formed along the radial direction of the oil absorption filter cylinder 210 and penetrate through the cylinder wall, the plurality of first oil smoke through holes 211 are uniformly and densely distributed on the cylinder wall, when oil smoke flows through the oil absorption filter cylinder 210, the densely distributed plurality of first oil smoke through holes 211 can allow oil smoke to quickly pass through, and oil smoke particles can be adsorbed and stay in the holes, so that filtering is realized.

Further, as shown in fig. 4 and 5, referring to fig. 6 in combination, the oil smoke filtering apparatus 200 further includes a blocking cover 230, where the blocking cover 230 is matched with the oil smoke filtering cartridge 210, and it is understood that, since the oil smoke filtering ball 220 is detachably placed in the oil smoke filtering cartridge 210, the oil smoke filtering cartridge 210 has an open end for taking and placing the oil smoke filtering ball 220, the blocking cover 230 is connected to the open end of the oil smoke filtering cartridge 210, and is used for blocking the oil smoke filtering ball 220 in the oil smoke filtering cartridge 210, ensuring stability of the oil smoke filtering ball 220 in the oil smoke filtering cartridge 210, and preventing the open end of the oil smoke filtering cartridge 210 from overflowing, so as to further ensure filtering effect of the oil smoke filtering apparatus 200.

Further, in this embodiment, the plugging cover 230 and the oil absorbing filter cartridge 210 may be connected by a threaded connection, a snap connection, or a fastening connection, and in an alternative embodiment, as shown in fig. 5, the plugging cover 230 and the oil absorbing filter cartridge 210 are connected by a second screw 232, for example, a flat-head tapping screw may be selected, and the screw connection manner can ensure the stability of the connection.

In addition to the above embodiment, as shown in fig. 5 and 6, the outer side of the sealing cap 230 is provided with a grip 231, and the grip 231 may be provided as a handle or other structure capable of providing grip. As an example, referring to fig. 2 and 3 in combination, the outer side surface of the plugging cover 230 is provided as a concave surface, the hand holding portion 231 is provided as a spherical structure with a notch, and the spherical structure is protruded outwards and forms a containing space with the concave surface, so that the hand of the operator can be held by extending into the notch from the notch, and on the basis that the plugging cover 230 is connected with the oil absorption filter cartridge 210, the operator can screw and pull the oil smoke filter device 200 by holding the hand holding portion 231, thereby realizing actions of mounting and dismounting the oil smoke filter device 200. Further, as shown in fig. 3, under the condition that the oil absorbing filter cartridge 210 is installed in the air inlet chamber, the blocking cover 230 is located outside the main body, so that the operator can conveniently hold the oil absorbing filter cartridge.

Further, as shown in fig. 6, the outside of the blocking cover 230 may be further provided with a sign 233 for indicating the rotation direction of the oil smoke filtering apparatus 200, so that an operator can confirm the direction in which screwing is required when installing or removing the oil smoke filtering apparatus 200 by observing the sign 233. The rotation mark 233 may be a printed pattern or an engraved pattern, which is not particularly limited in this embodiment.

According to the above embodiment, the oil smoke filtering apparatus 200 includes at least one oil absorbing filter ball 220, the oil absorbing filter ball 220 is detachably disposed in the oil absorbing filter cartridge 210, and the number of the oil absorbing filter balls 220 may be one or more, as shown in fig. 5, in an alternative embodiment, the oil absorbing filter ball 220 is provided in plurality, and a plurality of oil absorbing filter balls 220 are filled in the oil absorbing filter cartridge 210, so that the interception and filtering effects of the oil smoke can be improved.

Further, as shown in fig. 7, the oil absorbing filter ball 220 is provided as a hollow sphere, which may be provided as a standard sphere, or may be provided as a olive sphere or other deformed sphere, which is not particularly limited in this embodiment, and is preferably provided as a standard sphere, so that it is convenient to manufacture and also to cooperate with the oil absorbing filter cartridge 210. Illustratively, the diameter of the oil absorbing filter ball 220 is slightly smaller than the inner diameter of the oil absorbing filter cartridge 210, and thus, a plurality of oil absorbing filter balls 220 are arranged in the oil absorbing filter cartridge 210 along the axial direction of the oil absorbing filter cartridge 210, and when the oil smoke flows through the oil filtering apparatus 200, the oil absorbing filter balls 220 are sequentially contacted with the side surface of the oil absorbing filter cartridge 210, the other side surface of the oil absorbing filter cartridge 210, thereby further increasing the contact area and improving the filtering effect.

As shown in fig. 7, the oil absorbing filter ball 220 in this embodiment includes a ball shell and a filter element 224, wherein at least a portion of the ball shell is configured as a hollow structure for oil smoke passing through and absorbing oil smoke particles, and the filter element 224 is detachably disposed in the ball shell for further filtering oil smoke and absorbing oil smoke particles. Illustratively, the spherical shell is all arranged to be hollow structure, so that the oil smoke can enter and exit the oil absorption filter ball 220 from 360 degrees in any direction, the oil smoke can pass through conveniently, the contact area between the hollow part and the oil smoke is increased, and the adsorption and filtration effects of the oil absorption filter ball 220 are improved.

The spherical shell of the oil absorption filter ball 220 can be hollowed out in a mode of arranging a through hole, and the hollowed-out part can be also formed in the process of integrally forming the spherical shell. In an alternative embodiment, as shown in fig. 7, the spherical shell includes a plurality of ribs extending in an arc shape, and the ribs are connected in a longitudinal and latitudinal manner, so as to form a spherical wall of the spherical shell, that is, the ribs are connected in a staggered manner to form the spherical shell, and the gaps between the ribs are used as oil smoke through holes on the spherical shell, and according to the above embodiment, the oil smoke filter cartridge 210 is provided with a plurality of first oil smoke through holes 211, and the oil smoke through holes on the oil smoke filter cartridge 220 in this embodiment are called second oil smoke through holes 223.

Further, the ribs have a set width from the outer side to the inner side of the spherical shell, and thus, the second oil smoke through holes 223 configured between the intersecting ribs have a certain depth, so that oil smoke can be sufficiently contacted and adsorbed with oil smoke particles when the oil smoke flows through. Each of the second oil smoke through holes 223 may be surrounded by three or more ribs, and for example, as shown in fig. 7, the second oil smoke through holes 223 may be surrounded by four ribs.

Further, please continue to refer to fig. 7, the joint surface of each rib is set to be a plane, the ribs in the warp direction are parallel, the ribs in the weft direction are parallel, the upper and lower hole walls of the plurality of oil smoke through holes formed by the ribs are parallel, the left and right hole walls are parallel, oil smoke circulation and oil smoke contact adsorption with the hole walls are facilitated, and the filtering effect is further improved.

In this embodiment, the spherical shell may be configured as an integrally formed structure, or may be configured as an assembled structure, and exemplary, the spherical shell is configured as an assembled structure, as shown in fig. 7, where the spherical shell includes a first half shell 221 and a second half shell 222, and the first half shell 221 and the second half shell 222 are buckled and detachably connected, and the manner of detachable connection is not only convenient for cleaning the spherical shell of the oil absorption filter ball 220, but also convenient for replacing the filter element 224 therein. The two-piece connection between the first half-shell 221 and the second half-shell 222 may be provided as a hinge or by means of a snap connection.

Further, the first half shell 221 and the second half shell 222 are symmetrical, and the radial dimensions of the first half shell 221 and the second half shell 222 are the same. As shown in fig. 7, a first flange is circumferentially disposed at the opening of the first half shell 221, and a second flange is circumferentially disposed at the opening of the second half shell 222, and when the first half shell 221 is engaged with the second half shell 222, the first flange is abutted with the second flange. On this basis, a buckle can be arranged on one side of the first flange facing the second flange, a clamping groove matched with the buckle is arranged on the second flange, and the buckle is clamped in the clamping groove, so that the first half shell 221 and the second half shell 222 are connected.

With continued reference to fig. 7, the oil absorbing filter ball 220 includes a filter element 224, where the filter element 224 is disposed inside the ball housing, and may be directly placed or fixed by a fixing member. And set up to the assembled structure according to the spherical shell, the inside filter core 224 of spherical shell is convenient for change, has further improved the long-term filter effect of oil absorption filter ball 220 to the peculiar smell in the accessible filter core 224 got rid of the oil smoke makes the exhaust gas of follow range hood more fresh. The filter element 224 in this embodiment at least includes activated carbon, and the activated carbon may be spherical, cubic or irregular, which is not limited in this embodiment, and the number of activated carbon may be one or more, wherein the size of the smallest activated carbon is larger than the size of the largest second oil smoke through hole 223 on the spherical shell, so as to prevent the activated carbon from leaking.

Further, the filter element 224 may further include a filter bag, where the filter bag is configured to be a breathable filter bag for ensuring that the oil smoke passes through, and the activated carbon is disposed in the filter bag and wrapped by the filter bag, so that the oil smoke sequentially passes through the spherical shell, the filter bag and the activated carbon for interception and adsorption when entering the oil absorption filter ball 220, and the filter bag is configured to not only store the activated carbon, but also further improve the filtering effect of the oil absorption filter ball 220.

The oil fume filtering device can be applied to an upper exhaust type range hood. The embodiment of the utility model is not limited to the range hood, and the range hood filter device can be also used in other forms of range hoods such as a lower exhaust type range hood, a middle island type range hood and the like.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a lampblack filtering device for in range hood, its characterized in that, lampblack filtering device includes oil absorption cartridge filter and at least one oil absorption filter ball, the oil absorption filter ball includes the filter core, oil absorption filter ball detachably sets up in the oil absorption cartridge filter, oil absorption cartridge filter's section of thick bamboo wall with oil absorption filter ball's ball wall all sets up to can supply oil smoke and pass through and can adsorb the oil smoke granule.

2. The oil fume filtering device according to claim 1, wherein the wall of the oil-absorbing filter cartridge is partially or entirely provided with a hollowed-out structure.

3. The oil fume filtering device according to claim 2, wherein a plurality of first oil fume through holes are formed in a wall of the oil fume filtering cylinder, the first oil fume through holes are formed in the radial direction of the oil fume filtering cylinder, and the plurality of first oil fume through holes are uniformly distributed in the wall.

4. The oil fume filter apparatus of claim 1 further comprising a blocking cap connected to the open end of the oil suction filter cartridge to block the oil suction filter ball.

5. The oil fume filtering device according to claim 4, wherein the blocking cover is connected with the oil suction filter cartridge by a screw, and a hand grip is provided at an outer side of the blocking cover to screw and pull the oil fume filtering device.

6. The oil soot filtering device according to any one of claims 1 to 5, wherein a plurality of the oil suction filter balls are provided, and a plurality of the oil suction filter balls are disposed in the oil suction filter cartridge in an axial direction of the oil suction filter cartridge.

7. The oil soot filtering device of claim 1, wherein the spherical shell of the oil absorbing filter ball comprises a first half shell and a second half shell, and the first half shell is buckled with the second half shell and is detachably connected.

8. The oil fume filtering device according to claim 1, wherein the spherical shell of the oil fume filtering ball is arranged in a plurality of rib longitude and latitude intersecting structures, and a plurality of second oil fume through holes are formed among the intersecting ribs.

9. The oil soot filtering device of claim 1, wherein the filter cartridge is detachably disposed within the oil absorbing filter ball, the filter cartridge comprising a filter bag and activated carbon, the activated carbon disposed in the filter bag.

10. A range hood comprising a main body and a fume filtration device according to any one of claims 1 to 9, said fume filtration device being mounted on said main body.