CN111322653A

CN111322653A - Fume exhaust fan

Info

Publication number: CN111322653A
Application number: CN202010249006.8A
Authority: CN
Inventors: 邹志锋; 申志贤; 徐鑫
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-23

Abstract

The invention relates to a range hood, which comprises a shell and a fan system arranged in the shell, wherein the lower part of the shell is provided with a vertically extending smoke inlet cavity, the upper part of the shell is provided with a smoke collecting cavity communicated with the smoke inlet cavity, the smoke collecting cavity extends forwards to form an installation cavity for installing the fan system, the shell is internally provided with a cavity which is positioned at the lower side of the installation cavity and is relatively independent from the installation cavity, a filtering device capable of filtering kitchen air is arranged in the cavity, the side wall of the shell is provided with an air inlet and an air outlet corresponding to the filtering device, the air inlet is detachably connected with a dust blocking net capable of covering the air inlet, and the shell is provided with an assembly opening for detaching and replacing the dust blocking net. According to the invention, by utilizing the characteristics of machine types, the air filtering device is arranged at the lower side of the installation cavity, so that the space is fully utilized, the kitchen air can be purified, and the user experience is improved; in addition, the detachable dust blocking net is connected to the air inlet, so that large particles can be blocked, air can be pretreated, the purification effect can be improved, and the detachable dust blocking net is convenient to detach and replace.

Description

Fume exhaust fan

Technical Field

The invention relates to a range hood.

Background

Range hood is the electrical apparatus that is essential in the kitchen at present, and is comparatively common and use more extensively to arrange oily smoke purification system in last.

At present, the upward-exhaust oil fume purification system is mainly divided into two types: a top-suction range hood and a near-suction range hood. The top-suction type range hood is more attractive, but the smoke inlet is higher, and the smoke suction effect is limited; compared with a top-suction range hood, the near-suction range hood has a lower smoke inlet, but is influenced by the appearance structure and the internal air duct structure of the near-suction range hood, and the existing near-suction range hood cannot better approach oil smoke, so that the oil smoke suction effect is limited to a great extent.

In addition, the kitchen environment has great influence on human bodies, and polluted oil smoke can cause respiratory tract infection of the human bodies and even increase the probability of lung cancer. Although the existing market oil smoke machine can suck away part of oil smoke, the oil smoke in the kitchen still has heavy oil smoke smell, the air quality of the kitchen is poor, and the cooking experience of a user is poor. Meanwhile, the existing range hood is limited by the appearance, and the space cannot be effectively utilized.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a range hood which can fully utilize space and has an air filtering function so as to provide fresh air for a kitchen, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a range hood with a filter element convenient to replace, aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides a range hood, includes the casing and locates the fan system in this casing, its characterized in that: the casing lower part has the smoke inlet chamber of vertical extension, casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, the forward extension of collection smoke chamber forms the installation cavity that is used for installing fan system, have in the casing and be located this installation cavity downside and with the relatively independent cavity of installation cavity, be provided with in this cavity and carry out filterable filter equipment to the kitchen air, it has air intake and air outlet corresponding to filter equipment to open on the casing lateral wall, air intake department shirks the formula and is connected with the dirt blocking net that can cover this air intake, be provided with the assembly opening that is used for tearing open and changing the dirt blocking net on the casing.

In the above scheme, an assembly frame for installing the dust blocking net is arranged on the inner wall of the shell in the cavity, an insertion opening for inserting the dust blocking net into the assembly frame from bottom to top is formed in the bottom wall of the assembly frame, and the assembly opening is formed in the bottom wall of the shell at the bottom of the cavity and corresponds to the insertion opening. By adopting the structure, when the dust screen needs to be replaced, the partial shell of the range hood does not need to be disassembled, and the dust screen can be directly drawn out from the insertion hole at the lower end of the assembly frame from the assembly hole for replacement, so that the replacement is more convenient.

Preferably, the assembly frame is provided with a connecting mechanism capable of restraining the dust screen on the assembly frame or ejecting the dust screen downwards from the assembly frame, and the bottom wall of the dust screen is approximately flush with the assembly opening in an assembly completion state. By adopting the connecting mechanism with the structure, greater convenience is provided for replacing the dust screen, and under the normal use state, the bottom wall of the dust screen is approximately flush with the assembly port, namely approximately flush with the lower wall surface of the shell at the bottom of the cavity, so that the appearance can be kept attractive.

Preferably, a first elastic part which can enable the dust-proof net to always keep moving downwards is connected between the bottom of the dust-proof net and the assembling frame; the bottom edge of the dust-proof net extends towards one side to form a supporting plate which can be abutted against the lower edge of the assembly frame, the upper wall surface of the supporting plate is provided with an insertion column which extends upwards, correspondingly, the bottom wall of the assembly frame is provided with a slot which is matched and connected with the insertion column, a limiting structure which can limit or relieve the limitation along with the upward movement of the insertion column is arranged in the slot, and the limiting structure, the insertion column, the slot and the first elastic piece jointly form the connecting mechanism.

In the scheme, the side wall of the insertion column is provided with a heart-shaped limiting groove with an upward pointed end, the pointed end of the heart-shaped limiting groove extends upwards to the top wall of the insertion column to form a vertical guide part, the top of the slot is provided with a limiting needle which extends downwards and is matched with the heart-shaped limiting groove, the central part of the heart-shaped limiting groove is provided with a limiting block which can be matched with the limiting needle for limiting, and a slide way which can enable the limiting needle to slide in a single direction is formed between the outer peripheral wall of the limiting block and the inner peripheral wall of the heart-shaped limiting groove.

In order to better realize the limiting function, the lower part of the limiting needle is in an L-shaped structure with the matching part of the limiting groove and the limiting block, the vertical part of the L-shaped structure vertically extends, and the horizontal part of the L-shaped structure is vertically inserted into the limiting groove and can slide along the slide way and the guide part.

Preferably, the limiting block is also formed into a heart-shaped structure with the tip upwards, a limiting area capable of clamping the limiting needle therein to limit the limiting needle is formed at the bottom of the limiting block, the inward protruding part at the bottom of the heart-shaped limiting groove is offset to the right side of the limiting area, and the tip of the limiting block is offset to the left side of the tip of the heart-shaped limiting groove. The structure is favorable for keeping the one-way sliding of the limiting needle in the heart-shaped limiting groove, so that the effect of limiting by pressing to the end once and then releasing to the end once is realized.

In order to facilitate the installation of the limiting needle, a connecting column is arranged at the top of the slot, and an assembling ring sleeved on the connecting column is arranged at the upper end of the limiting needle.

Preferably, the upper wall surface of layer board is provided with the guide post of vertical extension, and is corresponding, it has the guide way with this guide post guide fit to open on the diapire of assembly frame, first elastic component is located in this guide way. Preferably, the inner wall of the assembly frame is recessed to form an assembly groove in which the edge of the dust screen can be embedded. This structure is favorable to improving the assembly stability.

Compared with the prior art, the invention has the advantages that: according to the invention, by utilizing the characteristics of machine types, the air filtering device is arranged at the lower side of the installation cavity, so that the space is fully utilized, the kitchen air can be purified, and the user experience is improved; in addition, the detachable dust blocking net is connected at the air inlet, so that large particles can be blocked, and air can be pretreated, thereby being beneficial to improving the purification effect; the assembly opening for disassembling and replacing the dust blocking net is formed in the shell, and a part of the shell does not need to be disassembled when the dust blocking net is disassembled and replaced every time, so that the dust blocking net is more convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of an assembly structure of the blower housing, the dust-blocking net and the assembly frame according to the embodiment of the present invention;

FIG. 4 is a schematic view of an assembly structure of the dust-blocking net and the assembly frame according to the embodiment of the present invention;

FIG. 5 is a schematic view of a portion of a coupling mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an assembly frame according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a heart-shaped limiting groove and a limiting block in the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, the range hood of this embodiment includes a housing 1 and a fan system 2 disposed in the housing 1, a smoke inlet 11 extending vertically is formed in a lower portion of the housing 1, a smoke inlet 111 communicating with the smoke inlet 11 is formed in a front side wall of the lower portion of the housing 1, a smoke collection chamber 12 communicating with the smoke inlet 11 is formed in an upper portion of the housing 1, and the smoke collection chamber 12 extends forward to form an installation chamber 13 for installing the fan system 2. It should be noted that, the installation cavity 13 is used for installing the fan system 2, but the installation position of the fan system 2 should not be completely limited in the installation cavity 13, and since the smoke collection cavity 12 is integral with the installation cavity 13, when the fan system 2 is installed, a part of the fan system 2 can be located in the smoke collection cavity 12 according to the requirement. Because the smoke inlet cavity 11 at the lower part of the shell 1 vertically extends, the smoke inlet cavity 11 can be made thinner along the width in the front-back direction and can extend downwards to be sufficiently close to the cooker and a smoke generating source, so that the smoke can be quickly sucked into the smoke inlet cavity to be discharged upwards once being generated, and the smoke suction effect is improved.

As shown in fig. 2, the housing 1 of this embodiment has a cavity 14 located at the lower side of the installation cavity 13 and relatively independent from the installation cavity 13, a filter device 3 capable of filtering kitchen air is disposed in the cavity 14, the filter device 3 is constrained on the housing 1 corresponding to the bottom of the installation cavity 13, and an air inlet 15 and an air outlet 16 corresponding to the filter device 3 are formed on the side wall of the housing 1. The filtering device 3 comprises a cross flow fan used for air suction and a filtering material layer arranged at the air outlet end of the cross flow fan, and the specific structure is the prior mature technology and is not described in detail herein.

In the present embodiment, the housing 1 has a blower housing 17 enclosed outside the installation cavity 13, and the bottom wall of the blower housing 17 and the portion of the housing 1 near the installation cavity 13 enclose the cavity 14. The air inlet 15 is arranged on the left side wall and the right side wall of the fan housing 17, and the air outlet 16 is arranged on the front side wall of the fan housing 17. The structure has the advantages that the front side air outlet can also form an air curtain to prevent oil smoke from escaping upwards. Be provided with the dirt net 4 that hinders that covers in air intake 15 department on the fan dustcoat 17 inside wall, this structure is to the air that gets into in the lampblack absorber and preliminarily strain, filters such as large granule dust.

Because the dust blocking net 4 needs to be replaced frequently, the dust blocking net 4 is convenient to replace. Specifically, as shown in fig. 3 and 6, an assembly frame 5 for installing the dust screen 4 is arranged on the inner wall of the fan housing 17, an assembly groove 52 capable of embedding the edge of the dust screen 4 therein is formed on the inner wall of the assembly frame 5 in a concave manner, an insertion opening 51 for inserting the dust screen 4 into the assembly frame 5 from bottom to top is formed on the bottom wall of the assembly frame 5, and an assembly opening 171 corresponding to the insertion opening 51 is formed on the bottom wall of the fan housing 17. The assembly frame 5 is provided with a connecting mechanism 6 which can restrain the dust-proof net 4 on the assembly frame 4 or can be popped out downwards from the assembly frame 4, and the bottom wall of the dust-proof net 4 is approximately flush with the assembly opening 171 in an assembled state so as to keep beautiful appearance.

A first elastic member 61 which can make the dust-proof net 4 always move downwards is connected between the bottom of the dust-proof net 4 and the assembly frame 5, and the first elastic member 61 is a linear spring. The bottom edge of the dust-proof net 4 extends towards one side to form a supporting plate 41 which can abut against the lower edge of the assembly frame 5, two guide posts 411 which extend vertically are arranged on the upper wall surface of the supporting plate 41, correspondingly, guide grooves 53 which are matched with the guide posts 411 in a guiding mode are formed in the bottom wall of the assembly frame 5, and a first elastic piece 61 is arranged in at least one guide groove 53, so that the dust-proof net 4 can be popped out downwards from the assembly frame 5 when the dust-proof net is descended without constraint force, and the replacement is convenient.

As shown in fig. 5 and 7, the upper wall surface of the supporting plate 41 is further provided with an insertion column 412 extending upward, correspondingly, the bottom wall of the assembly frame 5 is provided with a slot 54 connected with the insertion column 412 in a matching manner, the slot 54 is provided with a limit structure capable of limiting or releasing the limit along with the upward movement of the insertion column 412, and the limit structure, the insertion column 412, the slot 54 and the first elastic element 61 together form the connecting mechanism 6.

It has most advanced heart-shaped spacing groove 413 up to open on the lateral wall of grafting post 412, and the most advanced department of this heart-shaped spacing groove 413 upwards extends to and forms vertical guide part 414 on the roof of grafting post 412, slot 54 top is provided with downwardly extending and with heart-shaped spacing groove 413 matched with spacing needle 62, the central point of heart-shaped spacing groove 413 is provided with can cooperate spacing stopper 415 with spacing needle 62, form the slide a that can supply spacing needle 62 one-way slip between the internal perisporium of the periphery wall of this stopper 415 and heart-shaped spacing groove 413. The limiting needle 62, the heart-shaped limiting groove 413 and the limiting block 415 together form the limiting structure. The lower part of the limit needle 62, which is matched with the limit groove 413 and the limit block 415, is an L-shaped structure 621, the vertical part of the L-shaped structure extends vertically, and the horizontal part of the L-shaped structure is vertically inserted into the limit groove 413 and can slide along the slide way a and the guide part 414. The top of the slot 54 is provided with a connecting post 541, and the upper end of the spacing pin 62 is provided with an assembling ring 622 sleeved on the connecting post 541 so as to assemble the spacing pin 62.

The limiting block 415 is also formed into a heart-shaped structure with the tip upwards, a limiting area 4151 which can clamp the limiting needle 62 therein to limit the limiting needle 62 is formed at the bottom concave position of the limiting block 415, the inward convex part 4131 at the bottom of the heart-shaped limiting groove 413 is deviated to the right side of the limiting area 4151, and the tip 4152 of the limiting block 415 is deviated to the left side of the tip of the heart-shaped limiting groove 413, so that the limiting needle 62 is kept sliding in the slideway a in a single direction, the effect of pressing the supporting plate 41 to the bottom for limiting at one time and then pressing to the bottom for releasing the limiting at one time is realized.

In the normal use state of the range hood, the dust blocking net 4 is installed on the assembly frame 5 of the cavity 14, the supporting plate 41 is approximately kept flush with the bottom wall of the fan outer cover 17, and at the moment, the lower end of the positioning needle 62 is clamped in the limiting area 4151; when the dust-proof net 4 needs to be replaced, the supporting plate 41 is pressed upwards, the lower end of the positioning pin 62 is separated from the limiting area 4151 and slides clockwise along the slide way a under the action of the first elastic piece 61, and the positioning pin 62 slides to the tip of the heart-shaped limiting groove 413 and slides out through the guide part 414, so that the dust-proof net 4 is pulled out of the assembly opening 171; the new dust screen 4 is inserted into the assembly frame 5 from the insertion opening 51 upwards, after the insertion column 412 is inserted into the insertion slot 54, the lower end of the positioning pin 62 slides into the slide way a through the guide part 414 and slides clockwise, and after the insertion column 412 is completely inserted into the insertion slot 54, the lower end of the positioning pin 62 just slides to the limit area 4151 for limiting, and the installation of the dust screen 4 is completed.

In the description and claims of the present invention, the terms of orientation such as "upper", "lower", "left", "right", "side" and the like are used, but these terms of orientation merely indicate relative positional relationships and are not limited to absolute directions, and for example, "upper" and "lower" are not limited to directions opposite to or coincident with the direction of gravity, but are mainly relative to the direction of movement.

Claims

1. The utility model provides a range hood, includes casing (1) and locates fan system (2) in this casing (1), its characterized in that: casing (1) lower part has vertical extension's smoke inlet chamber (11), casing (1) upper portion has collection smoke chamber (12) that are linked together with smoke inlet chamber (11), collection smoke chamber (12) extend forward and form installation cavity (13) that are used for installing fan system (2), casing (1) in have be located this installation cavity (13) downside and with installation cavity (13) relatively independent cavity (14), be provided with in this cavity (14) and carry out filterable filter equipment (3) to the kitchen air, it has air intake (15) and air outlet (16) that correspond filter equipment (3) to open on casing (1) lateral wall, air intake (15) department shirks the formula and is connected with can be with the dirt net (4) that hinder that this air intake (15) cover, be provided with on casing (1) and be used for tearing open assembly opening (171) that change hinders dirt net (4).

2. The range hood of claim 1, wherein: be provided with on casing (1) inner wall in cavity (14) and be used for installing assembly frame (5) of hindering dirt net (4), it has inserted hole (51) that supplies dust screen (4) to insert assembly frame (5) from bottom to top to open on the diapire of assembly frame (5), assembly opening (171) are seted up on casing (1) diapire of cavity (14) bottom and are corresponding with above-mentioned inserted hole (51).

3. The range hood of claim 2, wherein: the assembly frame (5) is provided with a connecting mechanism (6) capable of restraining the dust-proof net (4) on the assembly frame (5) or popping up downwards from the assembly frame (5), and the bottom wall of the dust-proof net (4) is approximately flush with the assembly opening (171) in an assembly completion state.

4. The range hood of claim 3, wherein: a first elastic part (61) which can enable the dust-proof net (4) to always move downwards is connected between the bottom of the dust-proof net (4) and the assembling frame (5); the bottom edge of the dust-proof net (4) extends towards one side to form a supporting plate (41) which can abut against the lower edge of the assembly frame (5), an upward extending insertion column (412) is arranged on the upper wall surface of the supporting plate (41), correspondingly, a slot (54) which is matched and connected with the insertion column (412) is formed in the bottom wall of the assembly frame (5), a limiting structure which can limit or release the limiting along with the upward movement of the insertion column (412) is arranged in the slot (54), and the limiting structure, the insertion column (412), the slot (54) and the first elastic piece (61) jointly form the connecting mechanism (6).

5. The range hood of claim 4, wherein: the utility model discloses a spacing needle of bayonet socket, including bayonet socket (412), slot (54) top, the central point of bayonet socket (413) is provided with can cooperate spacing stopper (415) spacing with spacing needle (62), forms between the internal perisporium of the periphery wall of this stopper (415) and heart-shaped spacing groove (413) and can supply spacing needle (62) one-way slide (a) that slides on the lateral wall of bayonet socket (412) to open and to have most advanced heart-shaped spacing groove (413) up, and the most advanced department of this heart-shaped spacing groove (413) upwards extends to and forms vertical guide part (414) on the roof of bayonet socket (412), slot (54) top is provided with downwardly extending and with heart-shaped spacing groove (413) matched with spacing needle (62), the central point of heart-shaped spacing.

6. The range hood of claim 5, wherein: the lower part of the limiting needle (62) is provided with an L-shaped structure (621) matched with the heart-shaped limiting groove (413) and the limiting block (415), the vertical part of the L-shaped structure (621) extends vertically, and the transverse part of the L-shaped structure (621) is vertically inserted into the heart-shaped limiting groove (413) and can slide along the slide way (a) and the guide part (414).

7. The range hood of claim 5, wherein: the limiting block (415) is also formed into a heart-shaped structure with the pointed end (4152) facing upwards, a limiting area (4151) capable of clamping the limiting needle (62) therein to limit the limiting needle (62) is formed at the bottom concave position of the limiting block (415), the inward protruding part (4131) at the bottom of the heart-shaped limiting groove (413) is deviated towards the right side of the limiting area (4151), and the pointed end (4152) of the limiting block (415) is deviated towards the left side of the pointed end of the heart-shaped limiting groove (413).

8. The range hood of claim 5, wherein: the top of the slot (54) is provided with a connecting column (541), and the upper end of the limiting needle (62) is provided with an assembling ring (622) sleeved on the connecting column (541).

9. The range hood according to any one of claims 4 to 8, wherein: the upper wall of layer board (41) is provided with vertical extension's guide post (411), and is corresponding, it has guide way (53) with this guide post (411) direction complex to open on the diapire of assembly frame (5), first elastic component (61) are located in this guide way (53).

10. The range hood according to any one of claims 2 to 8, wherein: the inner wall of the assembly frame (5) is recessed to form an assembly groove (52) which can embed the edge of the dust screen (4).