CN113551279A - Fume exhaust fan - Google Patents

Abstract

The application relates to the technical field of household appliances, and discloses a range hood, include: flue, installation bracket, transmission shaft, gear, drive arrangement, water box and oil net. The mounting bracket is provided with a U-shaped shaft groove and is arranged on two opposite sides of the inner wall of the flue; two ends of the transmission shaft can be clamped into the U-shaped shaft grooves; the gear is sleeved on the transmission shaft; the driving device comprises a driving part and a driving wheel connected with the driving part, and the driving wheel is provided with a transmission shaft which is clamped into the U-shaped shaft groove and then meshed with the gear; driven wheels are arranged at two ends inside the water box, and two ends outside the water box are in sliding clamping connection with the side wall of the flue and can slide along the side wall of the flue; the oil screens are connected end to form a closed annular structure, one end of each oil screen is sleeved on the gear, and the other end of each oil screen is sleeved on the driven wheel. In this application, the transmission shaft can block drive wheel and the epaxial gear engagement of transmission behind the U-shaped shaft groove, but the water box joint is convenient for install and dismantle the oil net on the inner wall of flue.

Description

Fume exhaust fan

Technical Field

The application relates to the technical field of household appliances, for example to a range hood.

Background

At present, when adopting the lampblack absorber to carry out the oil smoke and filtering, usually be that a small part of large granule oil smoke is by the oil net separation, behind remaining most oil smoke got into the fan, can directly discharge in the atmosphere through exhaust passage, this kind of way can cause the pollution to the environment, exists among the correlation technique and adopts the online coating water film of oil to carry out filterable technique to the oil smoke, dissolves the oil smoke in the aquatic and handles the reduction to atmospheric pollution.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

it is inconvenient to dismantle the oil net.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a range hood to solve the problem that the oil screen is inconvenient to disassemble and install.

In some embodiments, a range hood includes: flue, installation bracket, transmission shaft, gear, drive arrangement, water box and oil net. The mounting bracket is provided with a U-shaped shaft groove and is arranged on two opposite sides of the inner wall of the flue; two ends of the transmission shaft can be clamped into the U-shaped shaft grooves; the gear is sleeved on the transmission shaft; the driving device comprises a driving part and a driving wheel connected with the driving part, and the driving wheel is provided with a transmission shaft which is clamped into the U-shaped shaft groove and then meshed with the gear; driven wheels are arranged at two ends inside the water box, and two ends outside the water box are in sliding clamping connection with the side wall of the flue and can slide along the side wall of the flue; the oil screens are connected end to form a closed annular structure, one end of each oil screen is sleeved on the gear, and the other end of each oil screen is sleeved on the driven wheel.

The range hood provided by the embodiment of the disclosure can realize the following technical effects:

the transmission shaft can be clamped in the U-shaped shaft groove from top to bottom, after the transmission shaft is clamped in the U-shaped shaft groove, a driving wheel of the driving device is meshed with a gear on the transmission shaft to drive the oil screen, and a water box for fixing the lower end of the oil screen can be clamped on the inner wall of the flue, so that the oil screen is fixed in the flue and is convenient to install; the water box slides upwards to be separated from the inner wall of the flue, and the transmission shaft is separated upwards from the U-shaped shaft groove, so that the oil screen can be detached from the flue, and the oil screen can be detached conveniently.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a range hood provided by an embodiment of the present disclosure;

fig. 2 is an exploded schematic view of an internal structure of a range hood provided by the embodiment of the disclosure;

fig. 3 is a schematic structural diagram of a combination of a driving device and a transmission shaft provided in an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a propeller shaft provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of an oil screen provided by an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a water box provided by the embodiment of the disclosure;

fig. 7 is an exploded schematic view of a water box provided by an embodiment of the present disclosure;

fig. 8 is another schematic structural diagram of a water box provided by the embodiment of the disclosure.

Reference numerals:

100. a flue; 200. a mounting bracket; 201. a U-shaped shaft groove; 202. a drive mounting groove; 300. a drive shaft; 301. a sleeve; 401. a first gear; 402. a second gear; 403. a first tooth portion; 404. a second tooth portion; 405. a third tooth portion; 501. a drive section; 502. a drive wheel; 600. a water box; 601. a driven wheel; 602. a chute; 603. sliding blades; 604. a groove part; 605. a connecting seat; 700. an oil screen; 701. edge covering; 702. a tooth slot hole; 800. a traction structure; 900. a spraying structure; 901. a water pump; 902. and (4) a spray head.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 5, an embodiment of the present disclosure provides a range hood including: flue 100, mounting bracket 200, drive shaft 300, gears, drive, water box 600 and oil screen 700. The mounting bracket 200 is provided with a U-shaped shaft groove 201 and is arranged on two opposite sides of the inner wall of the flue 100; two ends of the transmission shaft 300 can be clamped into the U-shaped shaft grooves 201; the gear is sleeved on the transmission shaft 300; the driving device comprises a driving part 501 and a driving wheel 502 connected with the driving part 501, wherein the driving wheel 502 is arranged in a way that the transmission shaft 300 is clamped into the U-shaped shaft groove 201 and then is meshed with the gear; driven wheels 601 are arranged at two ends inside the water box 600, and two ends outside the water box are slidably clamped with the side wall of the flue 100 and configured to be slidable along the side wall of the flue 100; the oil screens 700 are connected end to form a closed annular structure, and one end of each oil screen is sleeved on the gear, and the other end of each oil screen is sleeved on the driven wheel 601.

By adopting the range hood provided by the embodiment of the disclosure, the transmission shaft 300 can be clamped in the U-shaped shaft groove 201 from top to bottom, after the transmission shaft 300 is clamped in the U-shaped shaft groove 201, the driving wheel 502 of the driving device is meshed with the gear on the transmission shaft 300 to drive the oil screen 700, and the water box 600 for fixing the lower end of the oil screen 700 can be clamped on the inner wall of the flue 100, so that the oil screen 700 is fixed in the flue 100, and the oil screen 700 is convenient to install; the water box 600 slides upwards to be separated from the inner wall of the flue 100, and the transmission shaft 300 is separated upwards from the U-shaped shaft groove 201, so that the oil screen 700 can be detached from the flue 100, and the oil screen 700 is convenient to detach.

Alternatively, the mounting bracket 200 is provided with a driving mounting groove 202, and the driving part 501 is inserted and mounted in the driving mounting groove 202. In this way, the drive unit 501 is connected to the mounting bracket 200, so that the drive unit 501 is more stably fixed and the drive shaft 300 is driven by the drive unit 501.

Optionally, a ball groove is formed in the U-shaped shaft groove 201, and a ball is arranged in the ball groove. Thus, the friction force generated when the transmission shaft 300 rotates in the U-shaped shaft groove 201 is reduced, and the rotation of the transmission shaft 300 is smoother.

Optionally, the gear comprises: a first gear 401 sleeved at one end of the transmission shaft 300, and the transmission shaft 300 passes through the first gear 401 and protrudes outwards; and the second gear 402 is sleeved at the other end of the transmission shaft 300, and the transmission shaft 300 penetrates through the second gear 402 and protrudes outwards. Like this, the gear is all established to the both ends of transmission shaft 300 cover, utilizes the gear of balanced setting can be better drive oil net 700 to rotate, and the part of the outstanding gear of transmission shaft 300 is convenient for block transmission shaft 300 into U-shaped shaft groove 201, makes the installation of transmission shaft 300 and oil net 700 more stable.

Optionally, a sleeve 301 is disposed on the transmission shaft 300 at a position between the first gear 401 and the second gear 402, and the sleeve 301 is sleeved between the transmission shaft 300 and the oil screen 700 and configured to support the oil screen 700. Thus, the oil screen 700 can be supported by the sleeve 301, so that the oil screen 700 is prevented from collapsing, the surface of the oil screen 700 is kept tight, and the stability of the rotation of the oil screen 700 is improved.

Optionally, the sleeve 301 is made of pearl wool. Therefore, the pearl wool is light in material, has a good supporting effect, better supports the oil screen 700, and reduces the cost.

Optionally, the first gear 401 comprises: the first tooth 403 is connected to the oil screen 700 and configured to rotate the oil screen 700. In this way, the first gear 401 can be connected to the oil screen 700 by the first tooth portion 403, and the oil screen 700 is more stably driven to rotate.

Optionally, the second gear 402 comprises: a second tooth 404 and a third tooth 405. The second tooth portion 404 is connected to the oil screen 700 and configured to rotate the oil screen 700; third tooth 405 is fixedly connected to second tooth 404, has a smaller diameter than second tooth 404, and is configured to be engageable with drive wheel 502. Therefore, the second tooth part 404 of the second gear 402 can be better connected with the oil screen 700, the oil screen 700 is stably driven to rotate, the diameter of the third tooth part 405 is smaller than that of the second tooth part 404, the third tooth part can be hidden in an annular structure formed by the oil screen 700 and can be meshed with the driving wheel 502 to drive the transmission shaft 300 to rotate, and then the oil screen 700 is driven to rotate.

Optionally, the first tooth 403 and the second tooth 404 are identical in structure and diameter. In this way, the oil screen 700 is fixed and driven by the first tooth portions 403 and the second tooth portions 404, and the balance between both ends of the oil screen 700 is maintained, so that the rotation of the oil screen 700 is stabilized.

Optionally, second tooth 404 is located outside of third tooth 405. In this way, after the driving wheel 502 and the third tooth 405 are engaged, the second tooth 404 is sandwiched between the driving wheel 502 and the side wall of the flue 100, so that the propeller shaft 300 is not displaced in the axial direction, and the stability of the propeller shaft 300 can be improved.

Optionally, the drive means is arranged on the underside of the U-shaped shaft slot 201. Thus, after the transmission shaft 300 is clamped into the U-shaped shaft groove 201 from top to bottom, the lower side of the second gear 402 on the transmission shaft 300 can be meshed with the upper side of the driving wheel 502, so that the transmission shaft 300 is driven conveniently, and when the transmission shaft 300 is lifted upwards, the second gear 402 on the transmission shaft 300 can be naturally separated from the driving wheel 502, so that the transmission shaft 300 is convenient to disassemble.

Optionally, two sides of the oil screen 700 are provided with covered edges 701, and the covered edges 701 are provided with tooth slots 702 configured to mesh with the first tooth portions 403 and the second tooth portions 404. Thus, the edge 701 can improve the robustness of the oil screen 700, and the engagement of the tooth slot 702 with the first tooth portion 403 and the second tooth portion 404 facilitates the rotation of the oil screen 700.

Alternatively, the oil screen 700 is disposed obliquely, and the water bucket 600 is disposed at a lower end of the oil screen 700. Thus, water stains dropping on the oil screen 700 can be collected, and the water stains are prevented from dropping on a flow path of oil smoke.

Optionally, the oil screen 700 is disposed obliquely, and its low end is sleeved on the driven wheel 601, and its high end is sleeved on the gear. Therefore, the high-level end and the low-level end of the oil screen 700 can rotate and reciprocate, all positions of the oil screen 700 can reach the low-level end, and the oil screen 700 can be inclined in the water box 600 and coated with a water film conveniently.

Alternatively, the driven wheel 601 at the low end is submerged in the water box 600. In this way, portions of oil screen 700 may be submerged within water box 600, and it may be better to coat oil screen 700 with a film of water.

Alternatively, the mesh of the oil screen 700 is a circular hole. Thus, the circular hole can make the formed water film more stable, and the preservation time of the water film is prolonged.

Optionally, the pore size of the oil screen 700 is greater than or equal to 0.5mm, and less than or equal to 5 mm. Thus, the aperture of the oil screen 700 is set between 0.5mm and 5mm, the formed water film can be kept stable, and the ventilation efficiency is not affected.

Optionally, the pore size of the oil screen 700 is 0.5 mm. Thus, the oil screen 700 has smaller aperture, the formed water film has stronger stability, and the oil smoke stays at the water film due to proper wind resistance, so that the oil smoke is promoted to be blended into the water film, and the efficiency of absorbing the oil smoke by the water film is improved.

Optionally, the pore size of the oil screen 700 is 5 mm. Like this, the aperture of oil net 700 is great, and the windage is less, and the water film area that forms is bigger, increases the efficiency that the oil smoke fuses into the water film when making the oil smoke can pass through the water film fast.

Optionally, the ratio of the mesh area of oil screen 700 to the area of oil screen 700 is 0.5 to 0.8. In this way, the ventilation efficiency of the oil net 700 can be maintained, and a sufficient water membrane area is provided for absorbing the soot.

As shown in connection with fig. 6-8, a water box is provided.

In some alternative embodiments, one of the water box 600 and the inner wall of the flue 100 is provided with a sliding groove 602, and the other is provided with a sliding sheet 603. Therefore, the sliding piece 603 is clamped in the sliding groove 602 and can slide along the sliding groove 602, so that the water box 600 can slide along the flue 100, and the water box 600 is convenient to mount and dismount.

Optionally, the water cartridge 600 includes: a slot 604 and a connecting seat 605. The coupling seat 605 is welded at both ends of the groove portion 604, and the driven wheel 601 is coupled to the coupling seat 605. Thus, the water box 600 is formed by combining two parts, which is convenient for production and assembly.

Alternatively, the groove 604 is formed by bending a thin metal plate. Thus, the groove 604 can be easily machined and manufactured, and the cost can be reduced.

Alternatively, the side surfaces of the groove portion 604 are disposed obliquely with respect to the vertical surface. Thus, when the side surfaces of the groove portions 604 are inclined and inclined with respect to the oil mesh 700, a sufficient space is provided for the oil mesh 700, and friction is prevented from occurring between the side surfaces of the groove portions 604 and the oil mesh 700.

Optionally, one surface of the reverse slot 604 of the connecting seat 605 is flanged outward to form the sliding slot 602. Thus, the sliding groove 602 and the connecting seat 605 are integrally formed, so that the lifting is facilitated, and the cost is reduced.

Optionally, the upper end of the sliding groove 602 is closed and configured to limit the sliding piece 603. Like this, can make the upper end of spout 602 spacing to gleitbretter 603, make gleitbretter 603 and spout 602 joint together and spacing after the certain distance of lapse, prevent that water box 600 from droing downwards.

Optionally, a clean water or cleaning lotion is placed in the water box 600. Therefore, the clean water is cheap and convenient, the cost is reduced by cleaning the oil net 700 and coating the water film with the clean water, the use is convenient, and the adsorption effect of the oil smoke with the cleaning emulsion is better.

Optionally, a water filling port and a water discharging port are arranged on the side of the water box 600. Thus, the liquid in the water box 600 can be replaced through the water filling opening and the water discharging opening, and the liquid in the water box 600 is kept clean.

Optionally, the range hood further comprises: a towing configuration 800. The drawing structure 800 is connected to the water bucket 600, is provided to be connectable to an inner wall of the flue 100 at a lower side of the water bucket 600, and is configured to draw the water bucket 600 downward. In this way, the water box 600 is pulled downwards by the pulling structure 800, so that the fixation of the water box 600 can be improved, and the stability of the fixation of the whole oil screen 700 is further improved.

Alternatively, the pulling structures 800 are provided at both ends of the lower side of the water bucket 600. Thus, the two ends of the water box 600 are pulled, so that the stress balance of the water box 600 is kept, and the stability of the water box 600 is improved conveniently.

Optionally, a traction seat is integrally provided at a lower side of the connection seat 605, and one end of the traction structure 800 is fixed on the traction seat. In this way, the stability of the connection between the connection seat 605 and the towing structure 800 is improved.

Optionally, the pulling structure 800 is a spring. In this way, the traction structure 800 is made elastic, facilitating the fixation of the water box 600.

Alternatively, one end of the spring is fixedly connected to the connecting seat 605, the other end is provided with a fixing hook, and a fixing hole into which the fixing hook can be inserted is formed on the inner wall of the flue 100. Thus, the spring is easily connected to the smoke stack 100 to pull the water box 600.

Optionally, the range hood further comprises: and a spraying structure 900 disposed in the water box 600 or in an area above the water box 600 and configured to spray the oil screen 700 entering the water box 600. In this way, by spraying oil screen 700 with spray structure 900, oil screen 700 can be cleaned, the surface of oil screen 700 can be kept clean, and a water film can be more easily attached to oil screen 700.

Optionally, the spray mechanism comprises: a water pump 901 and a spray head 902. The water pump 901 is arranged in the water box 600, and the spray head 902 is communicated with the water outlet of the water pump 901. Thus, the oil screen 700 is sprayed and cleaned by water in the water box 600, and water is recycled to save water.

Alternatively, the shower head 902 is disposed on the edge of the water box 600 with the water spraying direction facing the inside of the water box 600. Thus, the edge of the water box 600 is sprayed into the water box 600, so that the sprayed water can be prevented from splashing, the spraying and cleaning effects on the oil screen 700 are good, and the safety and the sanitation are realized.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A range hood, comprising:

a flue;

the mounting bracket is provided with a U-shaped shaft groove and is arranged on two opposite sides of the inner wall of the flue;

the two ends of the transmission shaft can be clamped in the U-shaped shaft grooves;

the gear is sleeved on the transmission shaft;

the driving device comprises a driving part and a driving wheel connected with the driving part, and the driving wheel is arranged in a way that the transmission shaft is clamped into the U-shaped shaft groove and then is meshed with the gear;

the driven wheels are arranged at two ends of the inner part of the water box, and two ends of the outer part of the water box are in sliding clamping connection with the side wall of the flue and can slide along the side wall of the flue;

the oil screen is connected end to form a closed annular structure, one end of the oil screen is sleeved on the gear, and the other end of the oil screen is sleeved on the driven wheel.

2. The range hood according to claim 1, wherein a ball groove is formed in the U-shaped shaft groove, and balls are arranged in the ball groove.

3. The range hood according to claim 1, wherein the gear comprises:

the first gear is sleeved at one end of the transmission shaft, and the transmission shaft penetrates through the first gear and protrudes outwards;

and the second gear is sleeved at the other end of the transmission shaft, and the transmission shaft penetrates through the second gear and protrudes outwards.

4. A range hood as claimed in claim 3, characterized in that said first gear comprises:

the first tooth part is connected with the oil net and is configured to drive the oil net to rotate.

5. A range hood as set forth in claim 3, wherein said second gear comprises:

the second tooth part is connected with the oil net and is configured to drive the oil net to rotate;

and the third tooth part is fixedly connected with the second tooth part, has a smaller diameter than the second tooth part and is configured to be meshed with the driving wheel.

6. The range hood of claim 5, wherein the second tooth is located outside of the third tooth.

7. A range hood as claimed in any of claims 1 to 6, characterized in that the drive means are arranged on the underside of the U-shaped shaft groove.

8. A range hood as claimed in any of claims 1 to 6, characterized in that one of the water box and the inner wall of the flue is provided with a chute and the other is provided with a slide.

9. The range hood according to any one of claims 1 to 6, further comprising:

and the traction structure is connected with the water box, is arranged to be connected with the inner wall of the flue on the lower side of the water box and is configured to pull the water box downwards.

10. A range hood as claimed in claim 9, characterized in that the traction structure is a spring.

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