CN112577081A

CN112577081A - Range hood with filtering device and control method thereof

Info

Publication number: CN112577081A
Application number: CN201910940830.5A
Authority: CN
Inventors: 罗丹; 其他发明人请求不公开姓名
Original assignee: Foshan Luo Dan United Electrical Appliance Technology Co ltd
Current assignee: Foshan Luo Dan United Electrical Appliance Technology Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-03-30

Abstract

The invention provides a range hood with a filtering device and a control method thereof, and the range hood comprises a range hood body and an oil smoke filtering device, wherein the oil smoke filtering device is stored on a mounting assembly, the mounting assembly is mounted on the range hood body, a winding body or a folding body is configured to unfold the oil smoke filtering device under the action of external force, the unfolded part of the oil smoke filtering device covers an air inlet, and a fan is connected with an air suction pipeline to generate negative pressure at the air inlet so that air flow enters the air suction pipeline after being filtered by the unfolded part of the oil smoke filtering device. Not only can show promotion oil smoke purifying effect, the disposable oil smoke purification and separation device can be installed fast to the user, alright effectual separating the interception to the oil smoke oil stain and filter, and can last carry out high-efficient separation interception to the oil smoke and filter, and with low costs, practical economy, oil smoke oil stain interception filtration and separation effect are extremely outstanding, and filtration uses to change very conveniently.

Description

Range hood with filtering device and control method thereof

Technical Field

The invention relates to the field of kitchen equipment, in particular to a range hood with a filtering device and a control method thereof.

Background

The existing inertial intercepting equipment mainly adopts a barrier, an oil mist net cover and other modes to intercept waste gas and oil fume generated during cooking, then the waste gas and the oil fume are sucked into a cavity of the range hood, and a large amount of waste gas containing oil stain and oil fume is discharged to the outside through the cavity of the range hood and a wind wheel.

The density interception separation oil stain of the enlarged interception net is mostly adopted in the prior art, but the interception net can be blocked very quickly due to the excessive density of the interception net, oil smoke cannot be sucked and the oil stain is difficult to clean, if the density of the interception net is diluted, a large amount of oil smoke-containing oil stain is sucked into a cavity of a range hood, the original dynamic balance of a wind wheel of an exhaust device can be damaged very quickly, unfiltered oil smoke and oil stain are directly discharged outdoors, and the indoor and outdoor air environment is polluted. Some products in the prior art adopt the following technologies: 1. high-voltage electrostatic oil coating and purification are carried out, but the cost is too high and the oil smoke with strong concentration is not suitable; 2. the active carbon filtration has high cost and short service life when the oil smoke amount is large; 3. the adoption water smoke circulation filtration has certain effect in the Chinese food kitchen, but can not thoroughly intercept and separate a large amount of oil smoke oil stains generated during cooking, and the system is huge and is not suitable for the use of a household range hood.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the range hood with the filtering device, which has the advantages of low cost, practicability, economy, outstanding oil smoke and oil stain intercepting, filtering and separating effects and convenient use and replacement through years of practice and summary.

Specifically, the technical scheme is as follows:

a range hood with a filtering device comprises a range hood body, wherein an exhaust pipeline and a fan are arranged in the range hood body, and an air inlet is formed in the range hood body through the exhaust pipeline;

oil smoke filter equipment, oil smoke filter equipment accomodates on the installation component, the installation component is installed on the lampblack absorber body, oil smoke filter equipment configures to follow under the exogenic action the installation component outwards expandes, oil smoke filter equipment's expansion part covers the air intake, the fan is connected the air suction pipeline, with air intake department produces the negative pressure, makes the air current warp oil smoke filter equipment's expansion part gets into after filtering the air suction pipeline.

In a specific embodiment, the lampblack filter device is wound into a winding body, at least one winding body is arranged on the mounting assembly, and the unfolded part of the lampblack filter device extending from each winding body covers the air inlet;

or the oil fume filtering device is a superposed body which is continuously folded into a multilayer type, at least one superposed body is arranged on the mounting assembly, and the unfolded part of the oil fume filtering device extending from each superposed body covers the air inlet;

or, a part of the lampblack filtering device is wound into a winding body, the other part of the lampblack filtering device is a laminated body which is continuously folded into a multilayer type, at least one winding body and at least one laminated body are arranged on the mounting assembly, and the unfolded part of the lampblack filtering device extending from each winding body and each laminated body covers the air inlet.

In a specific embodiment, a receiving device is arranged at the air inlet, the receiving device supports the unfolding part of the lampblack filtering device from the inner side, and the receiving device is of an air passing structure, so that air flow sequentially flows through the unfolding part of the lampblack filtering device and the receiving device and then enters the air suction pipeline;

preferably, the receiving device comprises one or more layers of supporting plate nets, the supporting plate nets support the unfolded part of the oil fume filtering device from the inner side, and the air passing structure is a mesh hole in the supporting plate net.

In a specific embodiment, the range hood further comprises a magnetic connecting assembly, wherein the magnetic connecting assembly comprises a magnet, and the magnet is configured to be adsorbed on the range hood body so as to adsorb the expanded part of the oil smoke filtering device on the range hood body.

In a specific embodiment, the soot filtering device is provided with easy-to-break portions at preset intervals, and the structural strength of the soot filtering device at the easy-to-break portions is smaller than that of other portions.

In a specific embodiment, the mounting assembly comprises a box body, the winding body or the overlapping body is mounted in the box body, and the box body is mounted on the range hood body;

the box body comprises a box base and a box cover, wherein the box cover is detachably connected with the box base and forms a closed space for placing the winding body or the overlapping body with the box base.

In a specific embodiment, the winding body further comprises a central shaft on which the soot filter is wound, the central shaft being rotatably mounted within the cartridge body.

In a specific embodiment, the winding device further comprises a handle, the handle is mounted on the box body and exposed out of the box body, and the handle is connected with the central shaft to drive the winding body to rotate;

preferably, the number of the handles is one, the handles are mounted at one end of the box body and are exposed out of the box body, further preferably, the handles are connected with one end of the central shaft, a positioning seat is arranged at the other end of the box body, and the other end of the central shaft is in plug-in fit with the positioning seat;

preferably, the number of the handles is two, two ends of the box body are respectively provided with one handle, the first handle is connected with one end of the central shaft, and the second handle is connected with the other end of the central shaft;

preferably, the handle is connected with the transmission shaft, the central shaft is provided with a central hole extending along the axial direction, and the transmission shaft penetrates through the central hole.

In a specific embodiment, the winding device further comprises a tension spring, wherein the tension spring is arranged in the box body and presses the winding body;

preferably, the inner wall of one end of the box body is connected with a guide post, the tensioning spring is sleeved on the guide post, the inner wall of the other end of the box body is provided with a positioning seat, and the central shaft is in inserted fit with the positioning seat;

preferably, the inner wall of one end of the box body is connected with a guide post, the tensioning spring is sleeved on the guide post, one end of the box body is provided with a handle, the guide post is of a hollow structure, the handle is arranged in the guide post in a penetrating mode and connected with the central shaft, the inner wall of the other end of the box body is provided with a positioning seat, and the central shaft is matched with the positioning seat in an inserting mode;

preferably, the inner wall of one end of the box body is connected with a guide post, the tension spring is sleeved on the guide post, one end of the box body is provided with a first handle, the guide post is of a hollow structure, the first handle is arranged in the guide post in a penetrating mode and connected with the central shaft, the other end of the box body is provided with a second handle, and the central shaft is connected with the second handle;

preferably, a gasket is sleeved on the positioning column and located between the tensioning spring and the winding body, and the tensioning spring presses the winding body through the gasket.

In a specific embodiment, the winding device further comprises a driving device, and the driving device is in transmission connection with the central shaft to enable the winding body to automatically rotate.

In a specific embodiment, the winding device further comprises a tension spring, a guide post is arranged on the inner wall of one end of the box body, the tension spring is sleeved on the guide post and presses the winding body, and the driving device is in transmission connection with the central shaft on the inner wall of the other end of the box body.

In a specific embodiment, the driving device includes a driving motor, the driving motor is disposed on the inner wall of the box body, and an output shaft of the driving motor is in plug-in fit with the central shaft to drive the winding body to rotate.

In a specific embodiment, the driving device comprises a driving motor, the driving motor is arranged on the range hood body, a rotating shaft is arranged on the inner wall of the box body, the driving motor drives the rotating shaft to rotate by a transmission mechanism, and the rotating shaft is in inserted fit with the sleeve to drive the winding body to rotate;

preferably, the transmission mechanism comprises a worm and a worm wheel which are matched, the worm is connected with an output shaft of the driving motor, and the worm wheel is fixedly connected with the rotating shaft in an integrally-formed or non-integrally-formed manner.

In a specific embodiment, the transmission mechanism includes a flexible shaft, the driving motor is connected to the flexible shaft, and the flexible shaft is connected to the rotating shaft to drive the winding body to rotate;

preferably, a worm and a worm wheel which are matched with each other are arranged between the flexible shaft and the rotating shaft, the worm is connected with the flexible shaft, and the worm wheel is fixedly connected with the rotating shaft in an integrally-formed or non-integrally-formed mode.

In a specific embodiment, one or more layers of oil smoke intercepting net plates are further arranged on the outer side of the supporting plate net, and the unfolding part of the oil smoke filtering device is arranged between the oil smoke intercepting net plates and the receiving device.

In a specific embodiment, the mounting assembly includes a first base and a second base, one end of the winding body is rotatably mounted on the first base, and the other end of the winding body is rotatably mounted on the second base.

In a specific embodiment, a tensioning spring is arranged on the first base, the tensioning spring is configured to press one end of the winding body, a positioning seat is arranged on the second base, and the other end of the winding body is in plug-in fit with the positioning seat.

In a specific embodiment, the lampblack filtering device comprises a layer of sheet-shaped filtering structures or a plurality of layers of sheet-shaped filtering structures arranged in an overlapped mode, and preferably, bonding structures are arranged among the plurality of layers of sheet-shaped filtering structures;

preferably, the sheet-like filter structure is made of an organic material or an inorganic material or a mixture of organic and inorganic materials;

preferably, the sheet-like filter structure is made of a web of fibrous paper or a web of fibrous cloth;

preferably, the sheet-like filtering structure is made of a metal fiber felt or a metal fiber web;

preferably, the sheet-like filtering structure is made of a woven paper or cloth mesh;

preferably, the sheet-like filter structure comprises filter paper;

preferably, the sheet-shaped filter structure comprises a filter paper body, a filter cloth body, a combination of the filter paper body and the filter cloth body, a combination of an organism and an inorganic body, a metal body or a filter body made of metal materials and other materials which can pass gas;

preferably, the lampblack filtering device is provided with at least one reinforcing rib for preventing the lampblack filtering device from being broken.

A control method of a range hood uses control equipment to control the range hood in the embodiment as follows:

controlling the whole range hood according to a user instruction or a preset instruction, enabling the driving motor to drive the winding body to rotate, enabling the oil smoke filtering device on the winding body to sequentially expand and pass through the front of the bearing device, enabling the user instruction to protect a key input instruction, a touch instruction, a voice instruction or a network transmission control instruction, and enabling the preset instruction to comprise a time interval instruction stored in the control terminal in advance;

preferably, the control instruction transmitted by the network includes a control instruction sent by a home terminal system.

The invention has at least the following beneficial effects:

according to the range hood with the filtering device, when the fan is started, negative pressure is generated at the air inlet, and airflow containing oil smoke is efficiently filtered by the unfolding part of the oil smoke filtering device and then enters the air suction pipeline. Therefore, the oil smoke in the air flow is firstly efficiently filtered and purified by the oil smoke filtering device and then enters the air suction pipeline, after the unfolded part of the oil smoke filtering device is used for a period of time, for example, when the filtering capacity is saturated and becomes dirty, the unused part of the oil smoke filtering device can be unfolded, or the overlapped body is pulled to unfold the unused part of the oil smoke filtering device, and the newly unfolded oil smoke filtering device continues to filter the oil smoke in the air flow at the air inlet, so that the range hood has lasting oil smoke filtering capacity. The filter device overcomes the defect that some range hoods in the prior art have no oil smoke filtering capability, and also overcomes the defects that some range hoods with filter devices in the prior art have sharp reduction of filtering capability after being used for a period of time, are difficult to replace and the like.

Furthermore, the air inlet is provided with a bearing device such as a supporting plate net, the supporting plate net can not only position the expansion part of the oil smoke filtering device, when air flow passes through the supporting plate net, residual trace oil smoke particles in the air flow collide with the supporting plate net to generate an intercepting effect, and the supporting plate net has a secondary intercepting function on oil smoke. Moreover, because the oil smoke filter device is wound on the winding body or overlapped on the overlapping body, and the unused part is used before replacing and is matched with the supporting plate net, the oil smoke filter device can be used as a disposable filtering consumable, so that the air inlet of the range hood has enough strong oil smoke purification capacity all the time, and the oil smoke filter device at the air inlet is replaced very conveniently.

Further, oil smoke filter equipment is integrated in the box body, forms relatively independent modular structure for the lampblack absorber body, and the user can conveniently, change fast after oil smoke filter equipment is whole to be used up in the box body, and easy operation has promoted user experience.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a perspective view of a range hood with a filter device in embodiment 1;

FIG. 2 is a sectional view of a range hood with a filter device in embodiment 1;

FIG. 3 is an exploded view of the cartridge in example 1;

FIG. 4 is an exploded view of a range hood with a filter unit in which a case body is not detachable in embodiment 1;

FIG. 5 is an exploded view of a cooker hood with a filter unit in which a case body is detachable in embodiment 1;

FIG. 6 is an exploded view of the cartridge in example 1;

FIG. 7 is a sectional view of the cartridge in embodiment 1;

FIG. 8 is a perspective view of a range hood with a filter device of embodiment 4;

FIG. 9 is an exploded view of the cartridge in example 4;

FIG. 10 is a sectional view of the cartridge in embodiment 4;

FIG. 11 is a sectional view of a range hood with a filter device in embodiment 5;

FIG. 12 is an exploded view of a range hood with a filter device in embodiment 5;

FIG. 13 is an enlarged view of the area A in FIG. 12;

FIG. 14 is a sectional view of a range hood with a filter device in embodiment 6;

FIG. 15 is a sectional view of the cartridge in embodiment 6;

FIG. 16 is a perspective view of a range hood with a filter device of embodiment 7;

FIG. 17 is a sectional view of a range hood with a filter device in embodiment 8;

FIG. 18 is a sectional view of a range hood with a filter device in embodiment 9;

FIG. 19 is an enlarged view of the area B in FIG. 18;

FIG. 20 is a sectional view of a region where a component is mounted in embodiment 10;

FIG. 21 is a sectional view of an alternative mounting assembly region in embodiment 10;

FIG. 22 is a sectional view of the region where the component is mounted in embodiment 11;

FIG. 23 is a sectional view of the region where the component is mounted in embodiment 12;

fig. 24 is a partially enlarged view of a developed part of the oil smoke filtering device in example 13.

Description of the main element symbols:

1-a range hood body; 2-box body; 3-an air draft pipeline; 4-the expansion part of the oil fume filtering device; 5-a magnet; 6-a handle; 7-a touch pad; 8-a winding; 9-a fan; 10-a collection cup; 11-a pallet net; 12-a drive shaft; 13-hollow shaft sleeve; 14-a frangible portion; 15-cartridge mounting section; 16-positioning seats; 17-a tension spring; 18-a gasket; 19. 26-a drive motor; 21-box cover; 22-a cartridge base; 23-a worm; 24-a worm gear; 25-a bearing seat; 27-a flexible shaft; 28-a first base; 29-a second base; 30-a laminate.

Detailed Description

Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.

Example 1

The present embodiment provides a range hood (hereinafter, referred to as "range hood") having a filtering apparatus, which can be installed in a kitchen for treating oil smoke.

Specifically, this lampblack absorber includes lampblack absorber body 1 and winding body 8, and wherein, lampblack absorber body 1 is the major structure of lampblack absorber for install other parts of lampblack absorber. An exhaust pipeline and a fan 9 are arranged in the range hood body 1, an air inlet is formed in the outer end face of one side of the range hood body 1 of the exhaust pipeline, and a supporting plate net 11 is arranged at the air inlet.

The air exhaust pipeline is preferably formed by connecting a plurality of sections of pipelines, and two sides of the fan 9 are respectively connected with the pipelines, namely the fan 9 is connected between the two sections of pipelines. The fan 9 is disposed at a position close to the air inlet, or at a middle portion or a tail portion (such as a position close to the air outlet) of the air-extracting pipeline. Illustratively, the fan 9 has a motor and a blade driven by the motor, and when the motor is started, the blade is driven to rotate at a high speed to move the airflow in the ventilation duct, so as to generate a negative pressure at the air inlet, and the airflow near the air inlet is sucked into the suction duct 3. The air suction pipeline 3 is communicated with an external air exhaust pipeline or other air exhaust facilities for exhaust. Preferably, for the position of keeping away from air intake department, the exhaust pipeline has bigger cross-sectional area at the pipeline that is located air intake department, and then makes the lampblack absorber have great air intake for the food cooking equipment of air intake below can more effectively be caught into the inlet scoop in the air smoke.

In this embodiment, the winding body 8 comprises the fashioned oil smoke filter equipment of coiling, and box body 2 is installed on lampblack absorber body 1, has a plurality of box body installation departments 15 on lampblack absorber body 1 for example, at box body installation department 15 through installation box body 2 such as bonding or screw. The winding body 8 is installed on the range hood body 1 through the installation assembly, the winding body 8 is configured to be rotated to enable the oil smoke filtering device to be unfolded, the supporting plate net 11 is configured to support the unfolding part 4 of the oil smoke filtering device from the inner side, the fan 9 is connected with the air suction pipeline, and negative pressure is generated at the air inlet to enable air flow to sequentially flow through the unfolding part 4 of the oil smoke filtering device and the supporting plate net 11 and then enter the air suction pipeline.

In this embodiment, the case 2 is used to rotatably mount the winding body 8, and shields the winding body 8 from the outside to perform multiple protective functions such as dust prevention, oil prevention, water prevention, and destruction prevention. Specifically, fig. 4 shows a first preferred structure of the box body 2 in this embodiment, the box body 2 is an integral cylindrical structure, the middle part of the box body 2 is closed, one end surface of the two ends is open, and the winding body 8 is inserted into the box body 2 from the opening of the end surface. Fig. 5 shows a second preferred structure of the box body 2 in the present embodiment, and the box body 2 is composed of a box base 22 and a box cover which is detachably connected with the box base 22 and forms a closed space for placing the roll body 8 with the box base 22. Illustratively, the length of the box base 22 and the box cover are both larger than the axial length of the winding body 8, the box base 22 and the box cover can be relatively disassembled and buckled, when the winding body 8 is installed in the box body 2, the box base 22 and the box cover are disassembled firstly, the winding body 8 is placed on one of the box base 22 and the box cover, and then the other one is closed, so that the quick installation of the winding body 8 is completed.

In this embodiment, the net 11 is integrally formed or detachably mounted to the air inlet, and is configured to have an air passing performance so that the air flow at the air inlet is facilitated. Specifically, the structure of the supporting plate net 11 is that a plurality of air passing channels are formed on the plate body, and the structural form of the air passing channels comprises strip-shaped gaps, square holes, round holes or other types which are arranged at intervals. When the airflow passes through the air passing channel of the pallet net 11, the oil smoke molecules collide with the peripheral wall of the air passing channel and are intercepted. Preferably, the trawl net 11 covers the whole of the air inlet, so that all air flow entering the suction line 3 first passes the trawl net 11.

Wherein, the supporting plate net 11 is one layer or a plurality of layers, and when the supporting plate net 11 is one layer, the supporting plate net 11 is integrally formed or detachably arranged at the air inlet. When the air inlet is multi-layer, the multi-layer supporting plate net 11 is completely and detachably mounted on the air inlet, or is completely and integrally mounted on the air inlet, or one part is detachably mounted on the air inlet, and the other part is integrally mounted on the air inlet.

In this embodiment, the oil smoke filter device filters oil smoke molecules in the air flow, so that the air can pass through the oil smoke filter device and the oil smoke molecules cannot pass through the air flow. Specifically, oil smoke filter equipment includes the sheet filtration that one deck sheet filtration or multilayer coincide set up, wherein, when including multilayer sheet filtration, is provided with bonding structure between each layer sheet filtration.

The present embodiment provides some preferred material compositions of the lampblack filtering device, and in the first preferred material composition, the sheet-shaped filtering structure is made of organic materials or inorganic materials or a mixture of organic and inorganic materials. In a second preferred material composition, the sheet-like filter structure is made of a fibrous paper web or a fibrous cloth web. In a third preferred material composition, the sheet-like filter structure thereof is made of a metal fiber felt or a metal fiber web. In a fourth preferred material composition, the sheet-like filter structure is made of a woven paper or cloth web. In a fifth preferred material composition, the sheet-like filter structure comprises filter paper.

In this embodiment, the oil smoke filtering device is provided with the easily-breaking portions 14 at predetermined intervals, so that a user can tear the oil smoke filtering device from the easily-breaking portions 14. The easily breakable portion 14 may have a strip-shaped structure with a plurality of perforations arranged at intervals, so that the structural strength of the easily breakable portion 14 is less than that of other portions of the soot filter device. Alternatively, the thickness of the soot filter 14 at the breakable portion is smaller than the thickness of the soot filter at other portions, so that the structural strength of the breakable portion 14 is smaller than the strength of the soot filter at other portions.

Due to the arrangement of the easy-to-break part 14, after the unfolding part 4 of the oil smoke filtering device is used for a period of time, a large amount of oil smoke is attached to the unfolding part, the oil smoke filtering capacity is reduced, a user can conveniently tear off the used part of the oil smoke filtering device from the easy-to-break part 14, the winding body 8 is continuously rotated to unfold an unused section of the oil smoke filtering device, the newly unfolded oil smoke filtering device is located on the outer end face of the supporting plate net 11, and when the fan 9 is started to generate negative pressure at the air inlet, air flow sequentially passes through the oil smoke filtering device and the supporting plate net 11.

Therefore, the oil smoke in the air flow is firstly efficiently filtered and purified by the oil smoke filtering device, and then continuously passes through the supporting plate net 11 and then enters the air suction pipeline, when the air flow passes through the supporting plate net 11, the residual trace oil smoke particles in the air flow collide with the supporting plate net 11 to generate an interception effect, so that the supporting plate net 11 has a secondary interception function on the oil smoke. Moreover, because the oil smoke filter device is wound on the winding body 8, after the expansion part 4 of the oil smoke filter device is used for a period of time, for example, when the filter capacity is saturated and becomes dirty, the winding body 8 can be rotated to continuously expand the unused part of the oil smoke filter device, and the unused part is matched with the supporting plate net 11 before replacing the used part, so the oil smoke filter device can be used as a disposable filter consumable, the air inlet of the range hood has enough strong oil smoke purification capacity all the time, and the oil smoke filter device at the air inlet is replaced very conveniently. The range hood overcomes the defect that some range hoods in the prior art have no oil smoke filtering capability, and also overcomes the defects that some range hoods with filtering devices in the prior art have sharp reduction of filtering capability after being used for a period of time, are difficult to replace and the like.

Moreover, oil smoke filter equipment and revolution mechanic integration are in the box body, form relatively independent modular structure for lampblack absorber body 1, and the coiling body 8 oil smoke filter equipment is whole to be used up the back user can conveniently, change fast in box body 2, and easy operation has promoted user experience.

As shown in fig. 1, the range hood further comprises a magnetic connecting assembly, the magnetic connecting assembly comprises a magnet 4, the magnet 4 is configured to be adsorbed on the range hood body 1, and the expanded part 4 of the oil smoke filtering device is adsorbed on the range hood body 1. Specifically, to lampblack absorber body 1 that has the iron structure, magnet 4 contacts the surface of oil smoke filter equipment expansion part, and that promptly oil smoke filter equipment deviates from the surface of layer board net 11 one side, and the magnetic force between magnet 4 and the lampblack absorber body 1 compresses tightly lampblack filter equipment expansion part 4 on lampblack absorber body 1. To the lampblack absorber body 1 of non-iron structure, a plurality of positions are provided with iron sheet or magnet 4 respectively on the lampblack absorber body 1, and iron sheet or magnet 4 on the lampblack absorber body 1 and the magnet 4 of oil smoke filter equipment surface inhale the box. Therefore, the unfolding part 4 of the oil fume filtering device is directly attached to the supporting plate net 11 and has position holding capacity, and the air flow can be prevented from bypassing the unfolding part 4 of the oil fume filtering device and directly flowing through the supporting plate net 11 to enter the air suction pipeline 3.

As shown in fig. 4, the winding body 8 further includes a central shaft on which the soot filter is wound, the central shaft being rotatably installed in the case body 2. The central shaft can be a solid shaft structure, and can also be a hollow shaft sleeve 13 structure, and fig. 3 and 4 show one type of solid shaft structure.

As shown in fig. 1, 3 and 4, the winding device further comprises a handle 6, the handle 6 is mounted on the box body 2 and exposes out of the box body 2, and the handle 6 is connected with the central shaft to drive the winding body 8 to rotate. When the central shaft is a solid shaft, the handle 6 can be integrally formed with the central shaft, and can also be detachably connected in a transmission manner, for example, the handle 6 and the central shaft are directly provided with matched plug holes to realize plug connection. When a user rotates the handle 6, the handle 6 drives the central shaft to rotate, and the central shaft rotates to enable the oil smoke filtering device wound on the central shaft to rotate and gradually expand.

In this embodiment, as shown in fig. 3 and 4, the number of the handles 6 is one, and the handle 6 is mounted at one end of the box body 2 and exposed from the box body 2. Specifically, for example, one end of the cartridge base 22 has an opening in which the handle 6 is rotatably mounted.

In this embodiment, as shown in fig. 3 and 4, the handle 6 is connected to one end of the central shaft, the other end of the box body 2 is provided with the positioning seat 16, and the other end of the central shaft is inserted into and matched with the positioning seat 16. Specifically, the positioning seat 16 is a solid positioning seat 16 (shown in fig. 6) or a hollow positioning seat 16 having a positioning groove on an end surface thereof, for the solid positioning seat 16, the central shaft has an insertion hole for inserting the positioning seat 16, and for the hollow positioning seat 16, the central shaft itself or a positioning column on the central shaft is inserted into the positioning seat 16. Thus, the handle 6 and the positioning seat 16 respectively act on one end of the winding body 8, so that the winding body 8 can be rotated and stably supported in the case body 2.

In a preferred embodiment, a transmission shaft 12 is further included, and the handle 6 is connected to the transmission shaft 12. In this embodiment, the transmission shaft 12 is particularly suitable for the case that the central shaft is a hollow shaft sleeve 13, the central shaft has a central hole extending along the axial direction, one end of the transmission shaft 12 is connected with the handle 6, and the other end of the transmission shaft 12 is inserted into the central hole of the central shaft.

In this example, as shown in fig. 7, a tension spring 17 is further included, and the tension spring 17 is disposed in the case 2 and presses the winding body 8. Due to the provision of the tensioning spring 17, on the one hand the winding body 8 is pressed tightly in the box body 2, a more precise positioning and mounting of the winding body 8 is achieved. On the other hand, the winding body 8 is clamped tightly, the winding body 8 can rotate only by overcoming corresponding moment, the rotation of the winding body 8 under the non-allowable condition can be prevented, and the winding body 8 can rotate to unfold the lampblack filtering device only under the conditions that a user operates the handle 6, pulls the lampblack filtering device or other specific conditions.

When the handle 6 is not provided, the inner wall of one end of the box body 2 is connected with a guide post, the tensioning spring 17 is sleeved on the guide post, the inner wall of the other end of the box body 2 is provided with a positioning seat 16, and the central shaft is in inserting fit with the positioning seat 16. Preferably, when having handle 6, the inner wall of the one end of box body 2 is connected with the guide post, and tensioning spring 17 cover is established on the guide post, and handle 6 is installed to the one end of box body 2, and the guide post is hollow structure, and handle 6 wears to establish in the guide post and connects the center pin, and the inner wall of the other end of box body 2 is provided with positioning seat 16, and the center pin cooperates with positioning seat 16 grafting. In a preferred embodiment, the guide post is a hollow structure, and the handle 6 is arranged in the guide post in a penetrating way and connected with the central shaft.

Preferably, a washer 18 is sleeved on the positioning column, the washer 18 is located between the tension spring 17 and the winding body 8, and the tension spring 17 presses the winding body 8 through the washer 18. Further preferably, the gasket 18 and the positioning post are integrally formed.

As shown in fig. 1 and 2, a collecting tank or cup 10 is disposed below the range hood body 1. Wherein, collect cup 10 detachably and install in lampblack absorber body 1 bottom for lampblack absorber body 1 is last. When the oil smoke collecting device is used, oil smoke generated in the food cooking process is firstly intercepted by one or more layers of oil smoke intercepting screen plates through inertia, oil smoke fog drops are separated from air flow by the oil smoke intercepting screen plates through changing the moving direction of the air flow and are deposited on the oil smoke intercepting screen plates, and then the oil smoke downwards flows into a collecting tank or a collecting cup 10 under the action of gravity.

Example 2

The present embodiment provides a range hood (hereinafter, referred to as "range hood") having a filtering apparatus, which can be installed in a kitchen for treating oil smoke. The present embodiment differs from embodiment 1 in that:

one or more layers of oil smoke intercepting screen plates (not shown in the figure) are further arranged on the outer side of the supporting plate net 11, and the unfolding part 4 of the oil smoke filtering device is arranged between the oil smoke intercepting screen plates and the supporting plate net 11. Thus, in the present embodiment, compared to embodiment 1, the magnet 4 assembly is not required to fix the deployed portion 4 of the soot filter. Moreover, the air current loops through oil smoke interception otter board, oil smoke filter equipment and layer board net 11, and the oil smoke molecule in the air current is blocked by oil smoke interception otter board collision earlier, and the air current of preliminary filtration is fully filtered and purified when continuing to pass through oil smoke filter equipment, and layer board net 11 also has certain interception function for purifying filter effect is better.

Other features of this embodiment are the same as those of embodiment 1, and are not described again.

Example 3

in this embodiment, the number of the handles 6 is two (not shown in the figure), two handles 6 are respectively installed at two ends of the box body 2, the first handle 6 is connected with one end of the central shaft, and the second handle 6 is connected with the other end of the central shaft. Since the two handles 6 are provided, the user can rotate the winding body 8 by operating the handles 6 from either one of the left and right ends of the winding body 8.

In this embodiment, the inner wall of the one end of box body 2 is connected with the guide post, and tensioning spring 17 cover is established on the guide post, and first handle 6 is installed to the one end of box body 2, and the guide post is hollow structure, and first handle 6 wears to establish in the guide post and connects the center pin, and second handle 6 is installed to the other end of box body 2, and second handle 6 is connected to the center pin.

Example 4

as shown in fig. 8-10, the winding device further includes a driving device, the driving device is in transmission connection with the central shaft to enable the winding body 8 to automatically rotate, the driving device includes a driving motor 19, the driving motor 19 is disposed on the inner wall of the box body 2, and an output shaft of the driving motor 19 is in insertion fit with the central shaft to drive the winding body 8 to rotate.

The range hood further comprises control equipment, such as a control host formed by a single chip microcomputer, a PLC (programmable logic controller) or a remote control terminal and the like, and a user input unit formed by a touch screen, a key, a foot switch or a voice receiver and the like. The signal input end of the control host is electrically connected with the user input unit, and the command output end of the control host is electrically connected with the driving motor 19 so as to control the starting time and/or power of the driving motor 19.

In this embodiment, the range hood control method is to use a control device to control the range hood as follows:

the driving motor 19 is controlled according to a user instruction or a preset instruction to drive the winding body 8 to rotate, so that the oil fume filtering device on the winding body 8 is sequentially unfolded to pass through the front of the supporting plate net 11, the user instruction protects a key input instruction, a touch instruction, a voice instruction or a network transmission control instruction, and the preset instruction comprises a time interval instruction which is stored in the control terminal in advance.

Example 5

The present embodiment provides a range hood (hereinafter, referred to as "range hood") having a filtering apparatus, which can be installed in a kitchen for treating oil smoke. The present embodiment differs from embodiment 4 in that:

as shown in fig. 11-13, the driving motor 19 is disposed on the range hood body 1, the inner wall of the box body 2 is provided with a rotating shaft, the driving motor 19 is driven by the transmission mechanism to rotate, and the rotating shaft is in insertion fit with the sleeve to drive the winding body 8 to rotate.

Preferably, the transmission mechanism comprises a worm 23 and a worm wheel 24 which are matched, the worm 23 is connected with an output shaft of the driving motor 19, and the worm wheel 24 is fixedly connected with the rotating shaft in an integrally formed or non-integrally formed mode. Preferably, the worm wheel 24 is rotatably mounted in the housing 2 by means of a bearing housing 25.

Other features of this embodiment are the same as those of embodiment 4, and are not described again.

Example 6

The present embodiment provides a range hood (hereinafter, referred to as "range hood") having a filtering apparatus, which can be installed in a kitchen for treating oil smoke. The present example differs from example 5 in that:

as shown in fig. 14-15, the transmission mechanism includes a flexible shaft 27, the driving motor 26 is connected to the flexible shaft 27, and the flexible shaft 27 is connected to the rotating shaft to drive the winding body 8 to rotate.

Preferably, a worm 23 and a worm wheel 24 which are matched with each other are arranged between the flexible shaft 27 and the rotating shaft, the worm 23 is connected with the flexible shaft 27, and the worm wheel 24 is fixedly connected with the rotating shaft in an integrally formed or non-integrally formed mode.

Other features of this embodiment are the same as those of embodiment 5, and are not described again.

Example 7

as shown in fig. 16, the mounting assembly includes a first base 28 and a second base 29, one end of the winding body 8 is rotatably mounted on the first base 28, and the other end of the winding body 8 is rotatably mounted on the second base 29, i.e. the winding body 8 is not mounted in the case in this embodiment.

Preferably, the first base 28 is provided with a tension spring 17, the tension spring 17 is configured to press one end of the winding body 8, the second base 29 is provided with a positioning seat, and the other end of the winding body 8 is in plug fit with the positioning seat.

Example 8

as shown in fig. 17, the soot filter on the winding body is directly wound layer by layer from the inside to the outside to form the winding body, not wound on the shaft mandrel.

Example 9

as shown in fig. 18 and 19, the soot filter device is a laminated body 30 continuously folded in a multi-layer manner. The laminated body 30 is installed on the range hood body 1 by the installation component, the laminated body 30 is configured to be unfolded with the oil smoke filtering device under the action of external force, the unfolding part 4 of the oil smoke filtering device covers the air inlet, and the fan 9 is connected with the air suction pipeline 3 to generate negative pressure at the air inlet, so that air flow enters the air suction pipeline after being filtered by the unfolding part 4 of the oil smoke filtering device. Wherein, the installation component is box body 2, and coincide body 30 is installed in box body 2, and user's accessible drags oil smoke filter equipment's expansion part 4, makes oil smoke filter equipment continuously expand from coincide body 30.

Example 10

in this embodiment, the soot filter device is wound into a winding body 8, and the mounting assembly is provided with a plurality of winding bodies 8. The unfolding part 4 of the oil smoke filtering device extending from each winding body 8 covers the air inlet, and specifically, the unfolding part 4 of the oil smoke filtering device extending from each winding body 8 sequentially covers the air inlet to form a multi-channel filtering structure. Wherein, the installation component is box body 2, and the winding body 8 is installed in box body 2.

Exemplarily, fig. 20 shows a case where the roll 8 is two, and fig. 21 shows a case where the roll 8 is three.

Example 11

one part of the lampblack filtering device is wound into a winding body 8, the other part of the lampblack filtering device is a superposed body 30 which is continuously folded into a multilayer type, and at least one winding body 8 and at least one superposed body 30 are arranged on the mounting assembly. The extending part 4 of the oil smoke filtering device extending from each winding body 8 and each superposed body 30 covers the air inlet, and specifically, the extending part 4 of the oil smoke filtering device extending from each winding body 8 and each superposed body 30 sequentially covers the air inlet, and is a multi-channel filtering structure. Wherein, the installation component is a box body 2, and the winding body 8 and the superposition body 30 are installed in the box body 2.

Exemplarily, fig. 22 shows a case where the wound body 8 and the laminated body 30 are one each.

Example 12

the soot filter device is a laminated body 30 continuously folded into a multi-layer type, and a plurality of laminated bodies 30 are provided on the mounting assembly. The expanded portion 4 of the soot filter extending from each of the stacked bodies 30 covers the air inlet, and specifically, the expanded portion of the soot filter extending from each of the stacked bodies 30 sequentially covers the air inlet, and thus, a multi-pass filtering structure is formed. Wherein, the installation component is a box body 2, and the superposition body 30 is installed in the box body 2.

Exemplarily, fig. 23 shows a case where the number of the stacked bodies is three.

Example 13

as shown in fig. 24, at least one reinforcing rib 31 is provided on the soot filter for preventing the soot filter from being broken. The reinforcing rib 31 comprises rubber strips, fiber wires or metal wires and the like, the reinforcing rib 31 is located on the surface or inside of the oil fume filtering device, and the installation mode comprises bonding or integral forming.

Claims

1. A range hood with a filtering device is characterized by comprising a range hood body, wherein an air exhaust pipeline and a fan are arranged in the range hood body, and an air inlet is formed in the range hood body through the air exhaust pipeline;

2. The range hood with the filtering device according to claim 1, wherein the lampblack filtering device is wound into a winding body, at least one winding body is arranged on the mounting assembly, and an unfolded part of the lampblack filtering device extending from each winding body covers the air inlet;

3. The range hood with the filtering device according to claim 1, wherein a receiving device is arranged at the air inlet, the receiving device supports the expanded part of the oil fume filtering device from the inner side, and the receiving device is of an air passing structure, so that air flow enters the air suction pipeline after sequentially passing through the expanded part of the oil fume filtering device and the receiving device;

4. The range hood with the filtering device according to claim 1, further comprising a magnetic connecting assembly, wherein the magnetic connecting assembly comprises a magnet, and the magnet is configured to be adsorbed on the range hood body so as to adsorb the expanded part of the oil smoke filtering device on the range hood body.

5. The range hood with the filtering device according to claim 1, wherein the oil fume filtering device is provided with easily-broken parts at preset intervals, and the structural strength of the oil fume filtering device at the easily-broken parts is smaller than that of other parts.

6. The range hood with the filtering device according to claim 2, wherein the mounting assembly comprises a box body, the winding body and/or the overlapping body are/is mounted in the box body, and the box body is mounted on the range hood body;

the box body comprises a box base and a box cover, wherein the box cover is detachably connected with the box base and forms a closed space for placing the winding body and/or the overlapping body with the box base.

7. The range hood with a filter device according to claim 6, wherein the winding body further comprises a central shaft on which the soot filter device is wound, the central shaft being rotatably installed in the case body.

8. The range hood with the filtering device according to claim 7, further comprising a handle, wherein the handle is mounted on the box body and exposes out of the box body, and the handle is connected with the central shaft to drive the winding body to rotate;

9. The range hood with the filtering device according to claim 7, further comprising a tension spring disposed in the box body and pressing the winding body;

10. The range hood with the filtering device according to claim 7, further comprising a driving device, wherein the driving device is in transmission connection with the central shaft to enable the winding body to automatically rotate.

11. The range hood with the filtering device according to claim 10, further comprising a tension spring, wherein a guide post is arranged on an inner wall of one end of the box body, the tension spring is sleeved on the guide post and presses the winding body, and the driving device is in transmission connection with the central shaft on an inner wall of the other end of the box body.

12. The range hood with the filtering device according to claim 10, wherein the driving device comprises a driving motor, the driving motor is arranged on the inner wall of the box body, and an output shaft of the driving motor is in insertion fit with the central shaft to drive the winding body to rotate.

13. The range hood with the filtering device according to claim 10, wherein the driving device comprises a driving motor, the driving motor is arranged on the range hood body, a rotating shaft is arranged on the inner wall of the box body, the driving motor drives the rotating shaft to rotate through a transmission mechanism, and the rotating shaft is in inserted fit with the sleeve to drive the winding body to rotate;

14. The range hood with the filtering device according to claim 13, wherein the transmission mechanism comprises a flexible shaft, the driving motor is connected with the flexible shaft, and the flexible shaft is connected with the rotating shaft to drive the winding body to rotate;

15. A smoke exhaust ventilator with filtering device according to any one of claims 1-14, wherein one or more layers of oil smoke intercepting net plates are arranged outside the receiving device, and the expanded part of the oil smoke filtering device is arranged between the oil smoke intercepting net plates and the receiving device.

16. A fume exhauster with filtering device according to any one of claims 2-5, characterized by that said mounting assembly includes a first base seat and a second base seat, one end of said winding body is rotatably mounted on said first base seat, and another end of said winding body is rotatably mounted on said second base seat.

17. The range hood with the filtering device as claimed in claim 16, wherein a tension spring is disposed on the first base, the tension spring is configured to press one end of the winding body, a positioning seat is disposed on the second base, and the other end of the winding body is in insertion fit with the positioning seat.

18. A range hood as claimed in any of claims 1-17, characterized in that the oil smoke filtering device comprises a layer of sheet filtering structure or a plurality of layers of sheet filtering structures arranged in an overlapping way, preferably, a bonding structure is arranged between the plurality of layers of sheet filtering structures;

preferably, the sheet-like filter structure comprises filter paper;

19. A range hood control method, characterized by performing the following control of the range hood of any one of claims 10 to 18 using a control device: