CN212618515U - Filter screen structure, fan subassembly and lampblack absorber - Google Patents

Abstract

The utility model provides a filter screen structure, fan subassembly and lampblack absorber, this filter screen structure include outer net (6) and intranet (8), intranet (8) can rotate ground with outer net (6) coaxial coupling, just intranet (8) have wind-force bearing portion to can receive the wind-force effect and rotate. The utility model discloses an intranet only is connected with the extranet, and the intranet has wind-force bearing structure, can receive the wind-force effect and rotate, does not need independent motor drive or with fan system synchronous drive, has reduced the installation and has dismantled the degree of difficulty, convenient washing and maintenance to the cost is reduced. The intranet can pass through fastener cartridge on the outer net, and the location of the upper and lower limit of intranet has been realized to the cartridge back, and after the intranet cartridge was accomplished, through fasteners such as nut, screw rod to the effect of pressing of supporting of intranet, it is fixed to have realized the complete positioning of intranet, even the intranet can not take place to remove in the transportation yet, and makes things convenient for the dismouting of intranet.

Description

Filter screen structure, fan subassembly and lampblack absorber

Technical Field

The utility model relates to a lampblack absorber specifically, relates to a filter screen structure. Furthermore, the utility model discloses still relate to the fan subassembly that contains this filter screen structure and contain the lampblack absorber of this fan subassembly.

Background

At present, in order to improve the oil separation degree of the range hood, manufacturers in the market focus on the design of a filter screen at an air inlet of the range hood. Such as: a certain brand of European style machine which is newly marketed adopts a double-layer net cleaning and smoothening mode, and a side-suction type range hood adopts a built-in honeycomb net; a brand uses an integrally formed net of water chestnut, and the like. The filter screen component is added at the air inlet of the range hood or the air inlet of a fan system so as to achieve the purpose of improving the oil separation degree. However, such schemes are all fixedly installed on a static unit, and mainly achieve a certain degree of purification on the oil smoke based on condensation and micro-pore interception, and the effect is relatively limited. With current technology, it is a limit that the degree of grease separation can reach 92% to 93%. Simultaneously, this kind of scheme can not demolish the filter screen, leads to rotary filter screen's assembly and maintenance to increase the degree of difficulty, and in addition, this kind of scheme can only install a fixed thickness's rotary filter screen and can not demolish, leads to the clean washing operation of filter screen unchangeable.

In view of this, some manufacturers have developed range hoods with dynamic rotary filter screens, which are mainly installed at the air inlet of the volute or above the air inlet of the range hood. The filter screen mounting means has two kinds, and the first kind is installed in guide plate air intake department, needs independent motor drive rotatory, and this kind of scheme is with high costs. The second one is to install on the original fan system to realize synchronous rotation, such as the built-in chuck type smoke ventilator rotary filter screen, the built-in chuck type smoke ventilator rotary filter screen is installed on the forward air intake disc of the impeller, the built-in chuck type smoke ventilator rotary filter screen rotates synchronously with the impeller, based on high-speed rotation, the oil smoke enters the impeller through the mesh and the mesh which are uniformly distributed on the built-in chuck type smoke ventilator rotary filter screen under the negative pressure effect generated by the impeller, the mesh which is uniformly distributed on the built-in chuck type smoke ventilator rotary filter screen can impact the oil smoke which enters the impeller through the mesh and the mesh at the front part at high speed, the oil smoke particles are extruded and rubbed due to the impact effect at high speed, the oil smoke particles are continuously gathered and grown up by the extrusion and friction effect, under the centrifugal force effect generated by the high-speed rotation of the impeller, the intercepted, effectively reduces the pollution of the impeller by the oil smoke, and is more beneficial to the separation of oil smoke particles. In the scheme, as mentioned above, the rotary filter screen needs to be installed on the original fan system of the range hood to realize synchronous rotation, and is limited by space and connection mode, so that the filter screen is difficult to disassemble and wash.

Therefore, a novel range hood filter screen needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that the first aspect will be solved provides a filter screen structure, and this filter screen structure's intranet can receive the wind force effect back autogiration, and easy dismouting, and it is convenient to wash.

The utility model discloses the technical problem that the second aspect will be solved provides a fan subassembly, but this fan subassembly's filter screen structure's intranet receives wind force effect back autogiration, and easy dismouting, and it is convenient to wash.

The utility model discloses the technical problem that the third aspect will be solved provides a lampblack absorber, and the intranet of this lampblack absorber can receive the wind force effect back autogiration, and easy dismouting, and it is convenient to wash.

In order to solve the technical problem, the utility model provides a filter screen structure, this filter screen structure includes outer net and intranet, the intranet can rotate ground with outer net coaxial coupling, just the intranet has wind-force bearing part to can receive the wind-force effect and rotate.

Preferably, the outer mesh is a portion of a sphere.

Preferably, the inner net includes a central shaft portion and a plurality of blade portions provided around an outer periphery of the central shaft portion, the plurality of blade portions being formed integrally and each having an overflowing hole, adjacent sides of the adjacent blade portions being staggered to form the wind receiving portion therebetween.

Preferably, a fixed shaft on the axis of the outer net is fixed at the central part of the outer net, a bearing coaxial with the fixed shaft is fixed on the outer periphery of the fixed shaft, and a mounting hole is formed at the central part of the inner net to be fixed on the outer ring of the bearing; or

The bearing coaxial with the outer net is fixed in the central hole of the outer net, and the fastener hole is formed in the central portion of the inner net so that the inner net is fastened to one side of the inner ring of the bearing through the fastener.

Further preferably, a spacer is provided between the central portion of the inner web and the bearing.

Further preferably, an oil-proof cover is arranged on the outer end of the fixing shaft or the fastening piece exposed out of the outer net.

The utility model discloses the second aspect provides a fan subassembly, and this fan subassembly includes foretell filter screen structure.

Preferably, the fan assembly further comprises a fan system, and the outer net, the inner net and the fan system are sequentially arranged from outside to inside.

The utility model discloses the third aspect provides a lampblack absorber, and this lampblack absorber includes foretell fan subassembly.

Preferably, the guide plate of the range hood is provided with one of a buckle and a notch which are mutually matched, and the edge of the outer net is provided with the other of the buckle and the notch.

Through the technical scheme, the utility model discloses a following beneficial effect:

1. the utility model discloses an in the basic scheme, the intranet only is connected with the extranet, and the intranet has wind-force bearing structure, can receive the wind-force effect and rotate, does not need independent motor drive or with fan system synchronous drive, has reduced the installation and has dismantled the degree of difficulty, convenient washing and maintenance to the cost is reduced.

2. The utility model discloses an in the preferred scheme, the intranet passes through the fastener cartridge on the intranet, and behind the cartridge, realized the location of the upper and lower limit of intranet, after the intranet cartridge was accomplished, through the effect of pressing to the support of fasteners such as nut, screw rod to the intranet, realized that the complete location of intranet is fixed, even the intranet can not take place to remove in the transportation yet, and makes things convenient for the dismouting of intranet.

Drawings

Fig. 1 is an exploded view of the screen structure of the present invention;

fig. 2 is a schematic view of the installation of the filter screen structure of the present invention;

FIG. 3 is a schematic view of the connection between the outer net and the guide plate of the range hood of the present invention;

FIG. 4 is a schematic view of the whole range hood;

FIG. 5 is a schematic view of the range hood after the cover is opened;

figure 6 is a schematic view of the present invention from the rear of figure 5.

Description of the reference numerals

1 complete machine of range hood 2 air inlet opening and closing cover plate

3 oil cup 4 control panel

5 deflector 6 outer net

7 8 intranet of fan system

81 middle shaft part 82 blade part

83 connecting windward 84 fastener holes

9 fastener 10 notch

11 nut 12 spacer

13 bearing 14 bolt

15 oil-proof cover

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

It should be noted that, in the following description, some orientation words, such as "inside" and "outside", etc., are used to clearly illustrate the technical solution of the present invention, and the orientation or position relationship is the same as the installation position of the range hood, that is, the position of the control panel 4 or the air inlet opening and closing cover plate 2 is "outside", and the direction away from the control panel 4 or the air inlet opening and closing cover plate 2 is "inside", which is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be configured and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, the utility model discloses a filter screen structure includes outer net 6 and intranet 8, intranet 8 can rotate ground with outer net 6 coaxial coupling, just intranet 8 has wind-force bearing part to can receive the wind-force effect and rotate. The intranet 8 is rotatory through wind-force drive, does not need independent motor drive or with fan system synchronous drive, has reduced the installation and has dismantled the degree of difficulty, convenient washing and maintenance to the cost is reduced.

The outer mesh 6 may be of a planar or curved type, preferably said outer mesh 6 is a part of a sphere, and may be of a hemispherical, less than hemispherical or more than hemispherical, preferably less than hemispherical configuration. The structural purpose of its part that sets up to the sphere is to make its space that inwards bends for holding intranet 8 for the two are closer, thereby work better in coordination, make the oil smoke can handle through rotatory intranet 8 as soon as possible after getting into from outer net 6.

As some embodiments of the structure of the intranet 8 of the present invention, the intranet 8 includes a central shaft portion 81 and a plurality of blade portions 82 circumferentially disposed on the outer periphery of the central shaft portion 81, the blade portions 82 are integrally formed and each have an overflowing hole, and adjacent sides of the blade portions 82 are staggered to form a wind bearing portion connecting the windward side 83 therebetween. Specifically, as shown in fig. 1, the blade portion 82 is inclined on the plane on which the end face of the middle shaft portion 81 is located, and further, the connection windward side 83 is also inclined on the plane on which the end face of the middle shaft portion 81 is located. The connecting windward side 83 is free of overflow holes from which wind could easily escape and not be able to rotate the inner web 8.

In addition, the inner mesh 8 may have the following structure: the inner mesh 8 includes a central shaft 81 and a plurality of blades circumferentially disposed on the outer periphery of the central shaft 81, and the plurality of blades have a structure similar to that of a fan blade, i.e., are twisted outward along the center of the central shaft 81. In addition, a plurality of flow passing parts are formed on the blade, in the scheme, the flow passing parts are preferably in a strip shape, the area of the strip-shaped flow passing part standing on the blade is as small as possible, for example, the area of the flow passing parts accounts for less than 1/2 of the total area of the blade, so that the blade has enough windward area and is driven by wind to rotate.

On the basis of the above solution, the inner net 8 and the outer net 6 may be connected in the following manner.

One connection mode is as follows: a fixed shaft is fixed to the center of the outer net 6 along the axis thereof, a bearing 13 coaxial with the fixed shaft is fixed to the outer periphery of the fixed shaft, and a central shaft 81, which is the center of the inner net 8, is formed with a mounting hole to be fixed to the outer ring of the bearing 13. The bearing 13 is preferably welded to the mounting hole and to the stationary shaft. In this embodiment, the inner net 8 rotates about the bearing 13 when receiving wind force while the outer net 6 is stationary. Of course, the fixed shaft may be fixed to the middle shaft 81 of the inner mesh 8, and the central portion of the outer mesh 6 may be coupled to the fixed shaft via the bearing 13.

The other connection mode of the inner net 8 and the outer net 6 is as follows: a bearing 13 is fixed to a central hole portion of the outer net 6 coaxially therewith, and a central portion, i.e., a central shaft portion 81, of the inner net 8 is provided with a fastener hole 84 so that the inner net 8 is fastened to one side of an inner ring of the bearing 13 by a fastener such as a bolt 14, a screw, or the like. The bolts 14 pass through the through holes of the inner race of the bearing 13, then pass through the fastener holes 84, and then fasten the inner mesh 8 to the side of the inner race of the bearing 13 by the nuts 11. That is, in this embodiment, the outer diameter of the middle shaft 81 needs to be smaller than the inner diameter of the outer ring of the bearing 13. Of course, if the outer diameter of the central shaft 81 is larger in practical situations, a spacer 12 may be added to the central portion of the inner mesh 8, i.e. the central shaft 81 and the bearing 13, the spacer 12 being a common component, and the spacer 12 may be selected to have an outer diameter as large as that of the inner ring of the bearing 13. The spacer 12 separates the middle shaft portion 81 of the inner mesh 8 from the bearing 13, so that the outer diameter of the middle shaft portion 81 is set without being restricted by the bearing 13. In this mode, intranet 8 and outer net 6 pass through the fastener and connect, can dismantle and reinstall, convenient washing and maintenance.

In order to prevent the inner net 8 from rotating due to being stained with oil stains, the fixed shaft or the fastener exposed out of the outer net 6 is provided with an oil shield 15, and the oil shield 15 is connected to the outer net 6 in a clamping mode.

In the above-described embodiment, in order to facilitate the mounting of the bearing 13 and the oil-tight cover 15, the central portion of the outer mesh 6 is formed in a groove structure, and the bottom surface of the groove is a flat surface.

The utility model discloses the second aspect provides a fan subassembly, and this fan subassembly includes foretell filter screen structure.

Specifically, as shown in fig. 6, the fan assembly further includes a fan system 7, and the outer net 6, the inner net 8 and the fan system 7 are sequentially arranged from outside to inside. The fan system 7 is started, and the intranet 8 rotates under the action of wind power.

The utility model discloses the third aspect provides a lampblack absorber, and this lampblack absorber includes foretell fan assembly.

Specifically, as shown in fig. 1-3, a deflector 5 of the range hood is provided with one of a buckle 9 and a notch 10 which are adapted to each other, and the edge of the outer mesh 6 is formed with the other of the buckle 9 and the notch 10.

Fig. 4-6 are a preferred embodiment of the utility model discloses lampblack absorber, oil cup 3 is installed to the bottom of lampblack absorber complete machine 1, and guide plate 5 and the air intake that can cover guide plate 5 apron 2 that opens and shuts are installed to oil cup 3's top, and guide plate 5's top is equipped with control panel 4, installs extranet 6, intranet 8 and fan system 7 from the extroversion in proper order on the guide plate 5. The inner net 8 includes a central shaft portion 81 and a plurality of blade portions 82 circumferentially provided on an outer periphery of the central shaft portion 81, the plurality of blade portions 82 are integrally formed and each have an overflowing hole, and adjacent sides of the adjacent blade portions 82 are offset to form a connecting windward side 83 therebetween, that is, the above-described wind bearing structure. A bearing 13 coaxial with the outer mesh 6 is fixed to a central hole portion of the outer mesh 6, and a fastener hole 84 is provided to a middle shaft portion 81 of the inner mesh 8 so that the inner mesh 8 is fastened to one side of an inner ring of the bearing 13 by a bolt 14. The central part of the outer screen 6 forms a groove structure, and the bottom surface of the groove is a plane. The bearing 13 is fixed in the through hole at the bottom of the groove. The guide plate 5 is provided with a buckle 9, and the edge of the outer net 6 is provided with a notch 10 matched with the buckle 9.

The range hood of the preferred embodiment is relatively convenient to mount and dismount, and when a mounting worker mounts the range hood, the bolt 14 can sequentially penetrate through the through hole of the inner ring of the bearing 13, the through hole on the gasket 12 and the fastener hole 84 of the inner net 8, and then the inner net 8 is fastened on the side surface of the inner ring of the bearing 13 through the nut 11; then the notch 10 on the outer net 6 is clamped with the buckle 9 on the guide plate 5 through rotation, and finally the oil shield 15 is installed. The disassembly process is reversed.

In a specific use process, the fan system 7 can be started firstly, oil smoke generated by cooking rises and then contacts the condensing plate to condense, passes through the overflowing holes in the outer net 6 and the inner net 8 to enter the fan system 7, and is finally discharged into the smoke pipe from the check valve. When the oil smoke passes through the overflowing hole of the inner net 8, water and oil drops in the oil smoke continuously collide with the automatic rotating inner net 8 and are finally intercepted by the inner net 8, so that the purpose of reducing oil discharge is achieved.

To sum up, the utility model has the advantages of it is following: the utility model discloses an 8 intranet are only connected with outer net 6, and 8 intranet have wind-force bearing structure, can receive the wind-force effect and rotate, do not need independent motor drive or with fan system synchronous drive, have reduced the installation and have dismantled the degree of difficulty, convenient washing and maintenance to the cost is reduced. The utility model discloses an among the preferred scheme, intranet 8 passes through the fastener cartridge on extranet 6, behind the cartridge, has realized the location of the upper and lower limit of intranet 8, and 8 cartridges of intranet accomplish the back, through fasteners such as nut, screw rod to the effect of pressing of intranet, realized that the complete location of intranet 8 is fixed, even 8 can not take place to remove in the transportation of intranet, and make things convenient for the dismouting of intranet yet. In addition, the outer net 6 is arranged as a part of a sphere, and a space for accommodating the inner net 8 can be formed inside the outer net 6, so that the distance between the outer net 6 and the inner net 8 is smaller, and the work cooperation of the outer net and the inner net is smoother.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (10)

1. A screen structure, comprising an outer screen (6) and an inner screen (8), wherein the inner screen (8) is rotatably connected coaxially with the outer screen (6), and the inner screen (8) has a wind receiving portion for receiving wind to drive the inner screen (8) to rotate.

2. Sieve structure according to claim 1, characterized in that the outer net (6) is a part of a sphere.

3. The screen structure according to claim 1, wherein the inner web (8) comprises a central shaft portion (81) and a plurality of blade portions (82) circumferentially arranged on the periphery of the central shaft portion (81), the plurality of blade portions (82) being formed in one piece and each having an overflow aperture, adjacent sides of adjacent blade portions (82) being staggered to form the wind receiving portion therebetween.

4. The sieve structure according to any one of claims 1 to 3, wherein a fixed shaft on its axis is fixed to the central portion of the outer mesh (6), a bearing (13) coaxial with the fixed shaft is fixed to the outer periphery of the fixed shaft, and a mounting hole is formed in the central portion of the inner mesh (8) to be fixed to the outer ring of the bearing (13); or

A bearing (13) coaxial with the outer net (6) is fixed in the central hole of the outer net, and a fastener hole (84) is formed in the central portion of the inner net (8) so that the inner net (8) can be fastened to one side of an inner ring of the bearing (13) through a fastener.

5. Screen structure according to claim 4, characterized in that a spacer (12) is provided between the central part of the inner web (8) and the bearing (13).

6. The screen structure according to claim 4, characterized in that the fixed shaft or the fastening element is provided with an oil shield (15) at its outer end exposed out of the outer screen (6).

7. A fan assembly comprising a screen structure according to any one of claims 1 to 6.

8. The fan assembly according to claim 7, further comprising a fan system (7), wherein the outer mesh (6), the inner mesh (8) and the fan system (7) are arranged in sequence from outside to inside.

9. A range hood, characterized in that it comprises a fan assembly according to any one of claims 7 to 8.

10. A range hood according to claim 9, characterized in that a flow guide plate (5) of the range hood is provided with one of a buckle (9) and a notch (10) which are adapted to each other, and the edge of the outer net (6) is formed with the other of the buckle (9) and the notch (10).

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