CN219414910U

CN219414910U - Fume exhauster

Info

Publication number: CN219414910U
Application number: CN202223111380.5U
Authority: CN
Inventors: 马瑞敏; 彭臣西
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-07-25
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to a range hood, which comprises: the bottom of the fume collecting hood is provided with an air inlet; the rectification plate is arranged below the air inlet of the fume collecting hood and is used for blocking the fume rising to the position and forcing the fume to flow to the air inlet from a gap between the edge of the rectification plate and the fume collecting hood; the method is characterized in that: the rectifying plate is arranged to move back and forth relative to the air inlet, so that the back and forth position of the rectifying plate can be adjusted.

Description

Fume exhauster

Technical Field

The utility model relates to kitchen air purifying equipment, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen appliances in modern families. The range hood works by utilizing the fluid dynamics principle, and the range hood sucks and discharges oil smoke through a centrifugal fan arranged in the range hood and filters part of grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor for driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, and oil smoke below the range hood is sucked into the fan and is collected by the volute after being accelerated by the fan to be guided to be discharged out of the room.

Generally, a range hood comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has more and more wide application due to the advantages of neatness, light weight, small occupied space and the like. The top-suction type range hood generally comprises a fume collecting hood and a fan shell positioned on the fume collecting hood, wherein a centrifugal fan is arranged in the fan shell.

For example, chinese patent No. ZL200910096759.3 (grant publication No. CN 101514823B) discloses a range hood with a smoke guide plate, which comprises a body, a smoke collecting hood and a smoke guide plate, wherein an air inlet is provided at the bottom of the smoke collecting hood, the smoke guide plate (also called a rectifying plate) is arranged opposite to the air inlet and keeps a predetermined distance from the smoke collecting hood, so that a smoke channel for allowing smoke to pass through is formed between the smoke guide plate and the smoke collecting hood.

According to the top-draft type range hood, the rectifying plate is arranged below the fume collecting hood, so that fume flows to the air inlet from the gap between the edge of the rectifying plate and the fume collecting hood after contacting with the rectifying plate, and the fume is promoted to enter the range hood, so that the fume leakage phenomenon can be effectively reduced. Because the rectifying plate in the range hood is fixedly arranged, and the gap between the edge of the rectifying plate and the fume collecting hood is smaller, the range hood is easy to generate a fume leakage phenomenon, and the fume leakage phenomenon is more obvious at the front side of the rectifying plate.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a range hood capable of adjusting the front and rear positions of a rectifying plate.

The technical scheme adopted for solving the technical problems is as follows: a range hood, comprising:

the bottom of the fume collecting hood is provided with an air inlet;

the rectification plate is arranged below the air inlet of the fume collecting hood and is used for blocking the fume rising to the position and forcing the fume to flow to the air inlet from a gap between the edge of the rectification plate and the fume collecting hood;

the method is characterized in that: the rectifying plate is arranged to move back and forth relative to the air inlet.

In order to facilitate the installation of the rectifying plate, the device further comprises a first connecting rod which extends downwards from the fume collecting hood, and correspondingly, a hanging frame is arranged at the top of the rectifying plate and can be connected to the lower end of the first connecting rod in a front-back movable mode.

As a first form of the first connecting rod, the top of the first connecting rod is fixed to the hood wall adjacent to the air inlet.

In order to form the second mode of the first connecting rod, the bottom of the fume collecting hood is provided with a concave fume collecting area, the air inlet is positioned at the central part of the fume collecting area, and the first connecting rod extends downwards from the inner cavity of the fume collecting hood through the air inlet or through holes formed in the hood wall adjacent to the air inlet.

Further designed, a fan frame is arranged above the fume collecting hood, and the top of the first connecting rod is restrained on the fan frame.

In order to facilitate lifting of the rectifying plate, the first connecting rod is restrained on the fan frame in a vertically movable mode, so that the gap between the periphery of the rectifying plate and the fume collecting hood can be further adjusted, and the size of a negative pressure area formed by the rectifying plate and the fume collecting hood is adjusted.

Further designed, the oil cup is arranged at the rear side of the bottom wall of the fume collecting hood, and the rectifying plate moves along with the vertical movement and the front and back movement of the rectifying plate, so that the fume collecting hood has the following three positions:

when in a high position, the rectifying plate is close to the top wall of the smoke collecting area and covers the air inlet;

when the front part is at a low position, the rectifying plate is at least partially positioned below the oil cup and has a preset distance with the rear side wall of the fume collecting hood;

and when the rear part is at a low position, the rectifying plate is at least partially positioned below the oil cup, and the distance between the rectifying plate and the rear side wall of the fume collecting hood is smaller than the preset distance.

In order to be convenient for connect head rod and stores pylon, simultaneously, also in order to lead the fore-and-aft movement of rectifying plate, the stores pylon including the second connecting rod of fore-and-aft extension, the inside of this second connecting rod is equipped with the ascending spout of opening, the bottom of head rod is equipped with first slider, this first slider holding in the spout in and with spout sliding fit.

Further, the rectifying plate extends along the left-right direction, two second connecting rods are respectively arranged at the left side and the right side of the rectifying plate, two first connecting rods are respectively connected with the second connecting rods at the corresponding ends, and the stress at the two ends of the rectifying plate is balanced.

In order to facilitate the driving of the hanging frame to move back and forth, the hanging frame further comprises a third connecting rod connected with the two second connecting rods, a first driving motor is arranged on one of the first connecting rods, and the output end of the first driving motor is connected with the second connecting rod at the corresponding end through a transmission mechanism.

In order to be convenient for accept, accomodate the fluid on the rectifying plate, the rectifying plate slope backward gradually from top to bottom, just the top rear side of rectifying plate is equipped with the oil trap.

In order to facilitate the filtration of the oil fume, an oil net is arranged at the air inlet of the fume collecting hood, and meshes are distributed on the oil net; in order to avoid the influence of the oil net on the overall aesthetic property of the range hood, the oil from the oil net is also convenient to be accepted so as to avoid the oil on the oil net from dripping on the cooking bench, and the rectifying plate completely shields all the meshes when moving to a state under an air inlet area where the meshes are positioned.

Compared with the prior art, the utility model has the advantages that: through arranging the rectifying plate to be capable of moving back and forth relative to the air inlet, the gap between the front side edge of the rectifying plate and the fume collecting hood can be adjusted through moving the rectifying plate back and forth, as most fans of the range hood are all front side air inlets, when the range hood operates, the gap between the front side edge of the rectifying plate and the fume collecting hood can be increased through moving the rectifying plate back, the negative pressure area between the rectifying plate and the fume collecting hood is enabled to be larger, so that oil smoke can flow to the air inlet through the gap between the front side edge of the rectifying plate and the fume collecting hood rapidly, and oil smoke escape of the front side of the range hood can be reduced, and then the oil smoke absorbing effect is improved.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model (front low position);

FIG. 2 is a left side view (front low) of an embodiment of the present utility model;

FIG. 3 is a partial block diagram (front low) of an embodiment of the present utility model;

FIG. 4 is a perspective view (rear low position) of an embodiment of the present utility model;

FIG. 5 is a left side view (rear lower) of an embodiment of the present utility model;

FIG. 6 is a perspective view (in high position) of an embodiment of the present utility model;

FIG. 7 is a partial block diagram (high level) of an embodiment of the present utility model;

FIG. 8 is a perspective view of a first connecting rod and a rectifying plate according to an embodiment of the present utility model;

FIG. 9 is an exploded perspective view of the structure shown in FIG. 8;

fig. 10 is a perspective view of a second connecting rod according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 10, is a preferred embodiment of the present utility model.

As shown in fig. 1, 7 and 8, the range hood in this embodiment includes main components such as a fume collecting hood 1, a fan frame 21, a fan housing 22, an oil net 31, an oil cup 32, a rectifying plate 4, a hanging rack 5, a first connecting rod 6, a first driving motor 7, a movement mechanism, a connecting plate 9 and the like.

As shown in fig. 1 and 4, the bottom of the fume collecting hood 1 is formed with a concave fume collecting area 10, and an air inlet 11 is arranged at the central part of the fume collecting area 10. The air inlet 11 is provided with an oil net 31, and the oil net 31 is provided with meshes 311, so that the oil fume entering the inner cavity of the fume collecting hood 1 can be filtered. The fan frame 21 is arranged above the fume collecting hood 1 and is communicated with the inner cavity of the fume collecting hood 1, a fan 210 is arranged in the fan frame 21, and an inlet of the fan 210 is arranged at the front end.

The rectifying plate 4 is disposed below the air inlet 11 of the fume collecting hood 1 along the left-right direction (see fig. 4), and the rectifying plate 4 is used for blocking the fume rising to the place and forcing the fume to flow from the gap between the edge of the rectifying plate 4 and the fume collecting hood 1 to the air inlet 11. The structure of the rectifying plate 4 can be seen in China patent publication No. CN201310627395.3 (publication No. CN 103697511A) for diffusion and drainage device of fume exhaust fan. The first connecting rods 6 are provided at both left and right sides of the fan frame 21 (see fig. 3 and 7). The upper ends of the first connecting rods 6 are respectively restrained on the fan frame 21, and the fume collecting hood 1 is provided with a through hole 12 (see fig. 3 and 7) at the left and right sides of the hood wall adjacent to the air inlet 11, and the lower ends of the first connecting rods 6 extend downwards into the fume collecting area 10 through the corresponding through holes 12 (see fig. 4). The hanger 5 is disposed at the top of the rectifying plate 4, and the hanger 5 includes two second connecting rods 51 spaced apart in the left-right direction, each second connecting rod 51 being connected to the lower end of the corresponding first connecting rod 6 in a manner of being capable of moving back and forth, so that the rectifying plate 4 can move back and forth. Each of the first connecting rods 6 is vertically movably restrained to the fan frame 21, so that the rectifying plate 4 can be lifted and lowered.

The rear side of the bottom wall of the fume collecting hood 1 is provided with an oil cup 32 (as shown in fig. 1 and 4), and the rectifying plate 4 moves vertically and back and forth with it, and has the following three positions:

when in a high position, the rectifying plate 4 is close to the top wall of the smoke collecting area 10 and covers the air inlet 11 (see fig. 6), at this time, the rectifying plate 4 is positioned under the air inlet area 310 where the mesh holes 311 are positioned, and the rectifying plate 4 completely shields all the mesh holes 311, so that the influence of the oil net 31 on the overall aesthetic property of the range hood can be avoided, and the oil from the oil net 31 can be conveniently received to prevent the oil on the oil net 31 from dripping on a cooking bench;

when in a front low position, the rectifying plate 4 is at least partially positioned below the oil cup 32 and has a preset distance from the rear side wall of the fume collecting hood 1 (see fig. 2), so that the gap between the periphery of the rectifying plate 4 and the fume collecting hood 1 is increased, the negative pressure area between the rectifying plate 4 and the fume collecting hood 1 is expanded downwards, and the oil fume can be accelerated to enter the interior of the range hood, so that the fume absorbing effect is improved;

when in a rear low position, the rectifying plate 4 is at least partially positioned below the oil cup 32 and is smaller than a preset distance from the rear side wall of the fume collecting hood 1 (see fig. 5), so that the gap between the front side edge of the rectifying plate 4 and the fume collecting hood 1 is increased, the negative pressure area between the rectifying plate 4 and the fume collecting hood 1 is larger, and thus, the fume can be quickly flowed to the air inlet 11 through the gap between the front side edge of the rectifying plate 4 and the fume collecting hood 1, and the fume escape of the front side of the fume exhauster can be reduced, and the fume absorbing effect is improved.

As shown in fig. 8 and 9, the inside of each second connecting rod 51 is provided with a chute 512 with an upward opening, each first connecting rod 6 includes an outer rod portion 61 and an inner rod portion 62 inserted into the lower end of the outer rod portion 61, the bottom of each inner rod portion 62 is provided with a first sliding block 621, each first sliding block 621 is accommodated in the corresponding chute 512 and slidingly matched with the corresponding chute 512, so that each second connecting rod 51 is connected with the corresponding first connecting rod 6, and the cooperation of the first sliding block 621 and the corresponding chute 512 can guide the forward and backward movement of the hanger 5. The hanger 5 further comprises a third connecting rod 52 connected with the two second connecting rods 51, and a first driving motor 7 is arranged on the first connecting rod 6 positioned at the left side, and the output end of the first driving motor 7 is connected with the second connecting rod 51 positioned at the left end through a transmission mechanism. The transmission mechanism includes a gear portion 71 provided at an output end of the first driving motor 7 and a rack portion 511 provided on the second connecting rod 51 at a corresponding end, the rack portion 511 extending in a front-rear direction and being engaged with the gear portion 71.

As shown in fig. 2, 3 and 7, the fan housing 22 is provided outside the fan frame 21, and the movement mechanism is provided in a space between the fan frame 21 and the fan housing 22 and serves to drive the first connecting rod 6 to move vertically. The movement mechanism comprises a second driving motor 81, a screw rod 82 and a second sliding block 83, wherein the screw rod 82 is vertically arranged on the front side of the fan frame 21 and is connected to the output end of the second driving motor 81, and the second sliding block 83 is connected to the screw rod 82 and is connected with the connecting plate 9. The connection plate 9 includes a front side plate 91, a left side plate 92 and a right side plate 93, the left side plate 92 extends rearward from a left side edge of the front side plate 91 and is connected to the first connection rod 6 located at the left side, and the right side plate 93 extends rearward from a right side edge of the front side plate 92 and is connected to the first connection rod 6 located at the right side, so that both the first connection rods 6 can be driven to be lifted simultaneously.

As shown in fig. 8, the rectifying plate 4 is gradually inclined backward from top to bottom, and the top rear side of the rectifying plate 4 is provided with an oil collecting groove 41, so as to be convenient for receiving and containing the oil on the rectifying plate 4.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A range hood, comprising:

the bottom of the fume collecting hood (1) is provided with an air inlet (11);

the rectification plate (4) is arranged below the air inlet (11) of the fume collecting hood (1) and is used for blocking the fume rising to the position and forcing the fume to flow to the air inlet (11) from a gap between the edge of the rectification plate (4) and the fume collecting hood (1);

the method is characterized in that: the rectifying plate (4) is arranged to be movable back and forth relative to the air inlet (11).

2. The range hood of claim 1, wherein: the smoke collecting hood is characterized by further comprising a first connecting rod (6) extending downwards from the smoke collecting hood (1), correspondingly, a hanging frame (5) is arranged at the top of the rectifying plate (4), and the hanging frame (5) is connected to the lower end of the first connecting rod (6) in a front-back movable mode.

3. The range hood of claim 2, wherein: the top of the first connecting rod (6) is fixed on the cover wall adjacent to the air inlet (11).

4. The range hood of claim 2, wherein: the bottom of the fume collecting hood (1) is provided with a concave fume collecting area (10), the air inlet (11) is positioned at the central part of the fume collecting area (10), and the first connecting rod (6) extends downwards from the inner cavity of the fume collecting hood (1) through the air inlet (11) or through holes (12) formed in the hood wall adjacent to the air inlet (11).

5. The range hood of claim 4, wherein: a fan frame (21) is arranged above the fume collecting hood (1), and the top of the first connecting rod (6) is restrained on the fan frame (21).

6. The range hood of claim 5, wherein: the first connecting rod (6) is restrained on the fan frame (21) in a mode of being capable of moving vertically.

7. The range hood of claim 6, wherein: the rear side of the bottom wall of the fume collecting hood (1) is provided with an oil cup (32), and the rectifying plate (4) moves vertically and forwards and backwards along with the rectifying plate, so that the fume collecting hood has the following three positions:

when in a high position, the rectifying plate (4) is close to the top wall of the smoke collecting area (10) and covers the air inlet (11);

when in a front low position, the rectifying plate (4) is at least partially positioned below the oil cup (32) and has a preset distance with the rear side wall of the fume collecting hood (1);

when the rear part is at a low position, the rectifying plate (4) is at least partially positioned below the oil cup (32), and the distance between the rectifying plate and the rear side wall of the fume collecting hood (1) is smaller than the preset distance.

8. The range hood according to any one of claims 4 to 7, wherein: the hanging rack (5) comprises a second connecting rod (51) extending forwards and backwards, an upward opening sliding groove (512) is formed in the second connecting rod (51), a first sliding block (621) is arranged at the bottom of the first connecting rod (6), and the first sliding block (621) is contained in the sliding groove (512) and is in sliding fit with the sliding groove (512).

9. The range hood of claim 8, wherein: the rectifying plate (4) extends along the left-right direction, two second connecting rods (51) are respectively arranged at the left side and the right side of the rectifying plate (4), and two first connecting rods (6) are respectively connected with the second connecting rods (51) at the corresponding ends.

10. The range hood of claim 9, wherein: the hanger (5) further comprises a third connecting rod (52) connected with the two second connecting rods (51), a first driving motor (7) is arranged on one of the first connecting rods (6), and the output end of the first driving motor (7) is connected with the second connecting rod (51) at the corresponding end through a transmission mechanism.

11. The range hood of claim 8, wherein: the rectifying plate (4) is gradually inclined backwards from top to bottom, and an oil collecting groove (41) is formed in the rear side of the top of the rectifying plate (4).

12. The range hood of claim 8, wherein: an oil net (31) is arranged at an air inlet (11) of the fume collecting hood (1), meshes (311) are distributed on the oil net (31), and the rectifying plate (4) completely shields all the meshes (311) when moving to a state right below an air inlet area (310) where the meshes (311) are located.