CN214536365U

CN214536365U - Fume exhaust fan

Info

Publication number: CN214536365U
Application number: CN202023016448.2U
Authority: CN
Inventors: 徐群浪; 梅梦磊
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-10-29
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses a range hood, including collection petticoat pipe and the fan frame of setting in collection petticoat pipe top, the inboard of fan frame is provided with fan system, fan system includes spiral case, its characterized in that: the range hood further comprises a movement mechanism capable of driving the fan system to move, the movement mechanism comprises a driving mechanism, the driving mechanism is a linear driving module and is fixedly connected with the fan frame, the output end of the driving mechanism is connected with the volute, and the fan system is in sliding fit with the fan frame. Compared with the prior art, the utility model has the advantages of: the rotating speed of the fan can be unchanged, the negative pressure area is increased, and the oil smoke absorption effect is improved.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood is used as an essential kitchen appliance for each family, the range hood has the effects that oil smoke is sucked from the air inlet through the impeller rotating at a high speed in the volute, the oil smoke is filtered by the impeller, the filtered oil smoke is discharged from the air outlet, the purification work of kitchen air is completed, the reasonable air inlet is favorable for improving the oil smoke suction effect, the escape of the oil smoke is reduced, and the air quality of the kitchen is improved.

The utility model discloses a chinese utility model patent of application number 201922407146.9 discloses a range hood, including the cigarette machine main part, the fan subassembly, collection petticoat pipe subassembly, the filter screen subassembly, connect the oil ring, the fan subassembly is located in the cigarette machine main part, collection petticoat pipe subassembly is located in the cigarette machine main part, and set up the air intake from bottom to top, air intake department is located to the filter screen subassembly, and be provided with dive portion, dive portion is used for extending into the smoke chamber degree of depth, connect the oil ring around locating on the filter screen subassembly, and be used for collecting the inside greasy dirt of range hood, filter screen subassembly bottom still is equipped with the cup that connects that is used for collecting the greasy dirt.

The height position of a fan system of the existing range hood is generally fixed, the size of a negative pressure area at an air inlet is simply realized by a method of changing the rotating speed of a motor, but when the rotating speed of the motor is increased to a certain value, the vibration and the noise of the whole machine are more obvious, and the cooking experience of a user is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the problem that prior art exists, a range hood is provided, can not change the fan rotational speed, increase negative pressure zone promotes the oil absorption cigarette effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes collection petticoat pipe and sets up the fan frame in collection petticoat pipe top, the inboard of fan frame is provided with fan system, fan system includes spiral case, its characterized in that: the range hood further comprises a movement mechanism capable of driving the fan system to move, the movement mechanism comprises a driving mechanism, the driving mechanism is a linear driving module and is fixedly connected with the fan frame, the output end of the driving mechanism is connected with the volute, and the fan system is in sliding fit with the fan frame.

In order to drive the fan system to longitudinally move, the movement mechanism comprises a driving mechanism, the driving mechanism comprises a driving device and a transmission mechanism, the transmission mechanism comprises a lead screw which is driven by the driving device and can rotate around the axis of the lead screw, and a moving block which can move along the length direction of the lead screw through the rotation of the lead screw, the driving device is arranged on the fan frame, the lead screw is longitudinally arranged, and the moving block is used as the output end of the movement mechanism and is connected with the volute.

In order to drive the fan system to move longitudinally, the fan frame comprises a fan frame top plate, the driving device is arranged on the fan frame top plate, the moving block is arranged on the volute casing top plate, one end of the screw rod is connected with the output end of the driving device, and the other end of the screw rod penetrates through the moving block downwards and is in threaded connection with the moving block.

In order to realize that the fan system slides in the fan frame, the movement mechanism further comprises a sliding rail sliding block assembly, the sliding rail sliding block assembly is arranged between the fan frame and the volute, the sliding rail sliding block assembly comprises a sliding rail arranged on one of the fan frame and the volute and a sliding block arranged on the other one of the fan frame and the volute, the sliding rail is longitudinally arranged, and the sliding block is in sliding connection with the sliding rail.

In order to realize that the fan system slides in the fan frame, the sliding rail is arranged on the inner side of the fan frame, and the sliding block is arranged on one side of the volute corresponding to the sliding rail.

In order to set a damping device, the volute further comprises a front cover plate positioned on the front side and a rear cover plate positioned on the rear side, and the damping device for damping the fan system is arranged among the front cover plate, the rear cover plate and the volute top plate.

In order to arrange a damping device, the volute comprises a volute top plate, a first extending part extending out of the front cover plate towards the front and a second extending part extending out of the rear cover plate towards the rear are formed on the volute top plate, the damping device comprises a first elastic piece, a second elastic piece, a third elastic piece and a fourth elastic piece, one end of the first elastic piece is connected with the left side of the front part of the first extending part, the other end of the first elastic piece is connected with the position of the front cover plate close to the bottom, one end of the second elastic piece is connected with the right side of the front part of the first extension part, the other end of the second elastic piece is connected with the position of the front cover plate close to the bottom, one end of the third elastic piece is connected with the left side of the rear part of the second extension part, the other end of the third elastic piece is connected with the position of the rear cover plate close to the bottom, one end of the fourth elastic piece is connected with the right side of the rear part of the second extension part, and the other end of the fourth elastic piece is connected with the position, close to the bottom, of the rear cover plate.

In order to set up first sunction inlet and second sunction inlet, the bottom of fan frame is provided with the air inlet subassembly, the air inlet subassembly passes the collection petticoat pipe and extends to the below of collection petticoat pipe, the bottom of air inlet subassembly is formed with fan system fluid intercommunication, arranges first sunction inlet and second sunction inlet about,.

In order to reduce the visual field obstruction to the user during cooking, the first suction port is gradually inclined downwards from the front side to the rear side and gradually inclined upwards from the bottom middle to the left side, and the second suction port is gradually inclined downwards from the front side to the rear side and gradually inclined upwards from the bottom middle to the right side.

In order to further prevent the oil smoke from escaping, the air intake assembly further comprises a third suction inlet which is arranged above the first suction inlet and the second suction inlet and is communicated with the fluid of the fan system.

In order to be matched with the lifting of the fan system, the fan system further comprises an air outlet formed in the volute top plate, the fan frame further comprises an outlet formed in the fan frame top plate, and a telescopic air outlet pipe is arranged between the air outlet and the outlet.

Compared with the prior art, the utility model has the advantages of: the fan system can longitudinally move in the fan frame, so that when the oil smoke amount is large or external interference exists, the fan system can descend, the negative pressure at the air inlet is increased, the oil smoke absorption effect is improved, and when the oil smoke amount is small, the fan system can ascend, and the kitchen noise can be reduced; through set up the air inlet subassembly in the below of collection petticoat pipe, the first sunction inlet and the second sunction inlet of air inlet subassembly are close to the oil smoke source more for the negative pressure zone is put down, thereby has better oil absorption cigarette effect, and the third sunction inlet of air inlet subassembly can further prevent that the oil smoke from escaping.

Drawings

Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention;

fig. 2 is a schematic view of a part of components of the range hood according to the embodiment of the present invention;

FIG. 3 is an enlarged view of portion I of FIG. 2;

fig. 4 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 5 is a schematic view of a part of components of the range hood according to the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 4, a range hood includes a smoke collecting hood 1, a fan frame 2 disposed above the smoke collecting hood 1, and a fan system 3 disposed inside the fan frame 2, wherein the fan frame 2 of fig. 1 hides a front side plate to facilitate showing the fan system 3. The fan frame 2 comprises a fan frame top plate 21 which is positioned at the top of the whole fan frame 2 and extends transversely; the fan system 3 includes a volute 31, and the volute 31 includes a volute top plate 311, which is located at the top of the fan system 3 as a whole and extends transversely.

Referring to fig. 2 and 3, the fan system 3 is longitudinally movable, preferably in a vertical direction, within the fan frame 2. The range hood also comprises a motion mechanism 4 capable of driving the fan system 3 to move. The moving mechanism 4 includes a driving mechanism 41 and a slide rail slider assembly 42. The driving mechanism 41 is a linear driving module.

In the present embodiment, the driving mechanism 41 includes a driving device 411 and a transmission mechanism, the transmission mechanism includes a lead screw 412 driven by the driving device 411 and capable of rotating around its own axis, and a moving block 413 capable of moving along the length direction of the lead screw 412 by the rotation of the lead screw 412. Preferably, the driving device 411 is a motor, the body of the driving device 411 is disposed above the top plate 21 of the blower frame, and the output end of the driving device 411 passes through the top plate 21 of the blower frame downward to the inner side of the blower frame 2. The moving block 413 is provided on the volute ceiling 311 as the drive mechanism 41 and also as an output end of the movement mechanism 4, and the first damper 8 capable of functioning as a damper is provided between the moving block 413 and the volute ceiling 311. The lead screw 412 is disposed longitudinally, preferably extending in a vertical direction, one end of the lead screw 412 is connected to the output end of the driving device 411, and the other end of the lead screw 412 extends to the inside of the scroll casing 31 after passing through the moving block 413 downward. The lead screw 412 is screw-coupled to the moving block 413, so that the moving block 413 can move in a length direction of the lead screw 412 when the lead screw 412 rotates. In the present embodiment, the driving mechanisms 41 are provided in two, respectively, on the left and right sides of the scroll casing 31. Alternatively, the driving mechanism 41 may be any other conventional linear driving module, such as an electric push rod, an air cylinder, a combination of an electric motor and a rack and pinion, and the like.

The slide rail slider assembly 42 also has two, and the slide rail slider assembly 42 includes a slide rail 421 and a slider 422 which are slidably connected, and the slide rail 421 is arranged longitudinally. The two slide rails 421 are respectively disposed on the inner sides of the left and right sides of the blower frame 2, and the two slide blocks 422 are respectively disposed on the outer sides of the left and right sides of the volute casing 31. The positions of the slide rail 421 and the slider 422 may be interchanged. A second shock absorption member 9 capable of playing a buffering role is arranged between the sliding rail 421 and the fan frame 2.

Referring to fig. 1, 4 and 5, the volute 31 further includes a front cover plate 312 on the front side and a rear cover plate 313 on the rear side. The front cover 312 is formed with a first intake opening 314, and the rear cover 313 is formed with a second intake opening 315, thereby forming a dual intake blower. A damping device 5 for damping the fan system 3 is arranged between the front cover plate 312, the rear cover plate 313 and the volute top plate 311. The damper 5 includes a first elastic member 51, a second elastic member 52, a third elastic member 53, a fourth elastic member 54, a first connecting member 55, and a second connecting member 56. The first connector 55 is disposed at a position near the bottom of the front cover 312 and below the first intake vent 314, and the second connector 56 is disposed at a position near the bottom of the rear cover 313 and below the second intake vent 315. Preferably, the first link 55 is located at a middle position in the left-right direction of the front cover 312, and the second link 56 is located at a middle position in the left-right direction of the rear cover 313. The volute top plate 311 is formed with a first extending portion 3111 extending forward and a second extending portion 3112 extending rearward. One end of the first elastic member 51 is connected to the front left corner of the first extending portion 3111, the other end is connected to the first connecting member 55, one end of the second elastic member 52 is connected to the front right corner of the first extending portion 3111, the other end is also connected to the first connecting member 55, and the first elastic member 51, the first connecting member 55 and the second elastic member 52 form a substantially V-shape; one end of the third elastic member 53 is connected to the rear left corner of the second extending portion 3112 and the other end is connected to the second connecting member 56, one end of the fourth elastic member 54 is connected to the rear right corner of the second extending portion 3112 and the other end is connected to the second connecting member 56, and the third elastic member 53, the second connecting member 56 and the fourth elastic member 54 form a substantially V-shape.

Referring to fig. 1, 2, 4 and 5, the blower system 3 further includes an air outlet 316 disposed on the volute top plate 311, the blower frame 2 further includes an outlet 22 disposed on the blower frame top plate 21, and a telescopic air outlet pipe 7 is disposed between the air outlet 316 and the outlet 22.

Referring to fig. 1 and 4, a smoke collection chamber 11 which is recessed from the bottom to the top is formed on the inner side of the smoke collection cover 1, an air intake assembly 6 is arranged at the bottom of the fan frame 2, and the air intake assembly 6 penetrates through the smoke collection chamber 11 from the bottom of the fan frame 2 and extends downwards until extending to the lower side of the smoke collection chamber 11. The air intake assembly 6 is in a square column shape, and a first suction port 61 and a second suction port 62 which are in fluid communication with the fan system 3 and are arranged on the left and right sides of the bottom of the air intake assembly 6 are formed. The first suction port 61 may be inclined upward gradually from the bottom center to the left side and may be inclined downward gradually from the front side to the rear side, and the second suction port 62 may be inclined upward gradually from the bottom center to the right side and may be inclined downward gradually from the front side to the rear side. The inclined design of the first suction port 61 and the second suction port 62 can reduce the obstruction of the user's view during cooking. The intake assembly 6 also includes a third intake port 63 disposed above the first intake port 61 and the second intake port 62 in fluid communication with the fan system 3. The third suction inlet 63 is U-shaped with an open front side and is distributed on the front side, the left side and the right side of the air intake assembly 6. The third suction port 63 may be located at the top of the smoke collecting chamber 11.

When a user cooks, the oil smoke is firstly sucked through the first suction port 61 and the second suction port 62 which are closer to the oil smoke source, and when the oil smoke amount is large, the oil smoke escapes upwards, gathers in the smoke collecting chamber 11 of the smoke collecting cover 1, and is then sucked through the third suction port 63. Since the first suction port 61 and the second suction port 62 are closer to the source of the oil smoke, the negative pressure region is located downward, thereby having a better oil smoke suction effect.

When the oil smoke volume is larger or external interference exists, the fan system 3 descends, so that the negative pressure at the air inlet is increased, and the oil smoke absorption effect is improved; when the amount of oil smoke is small, the fan system 3 rises, and kitchen noise can be reduced.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims

1. The utility model provides a range hood, includes collection petticoat pipe (1) and sets up fan frame (2) in collection petticoat pipe (1) top, the inboard of fan frame (2) is provided with fan system (3), fan system (3) include spiral case (31), its characterized in that: fan system (3) can be in fan frame (2) longitudinal movement, range hood still includes motion (4) that can drive fan system (3) and remove, motion (4) include actuating mechanism (41), actuating mechanism (41) are linear drive module and are connected fixedly with fan frame (2), the output and the spiral case (31) of actuating mechanism (41) are connected, fan system (3) and fan frame (2) sliding fit.

2. The range hood of claim 1, wherein: the driving mechanism (41) comprises a driving device (411) and a transmission mechanism, the transmission mechanism comprises a lead screw (412) which is driven by the driving device (411) and can rotate around the axis of the lead screw, and a moving block (413) which can move along the length direction of the lead screw (412) through the rotation of the lead screw (412), the driving device (411) is arranged on the fan frame (2), the lead screw (412) is longitudinally arranged, and the moving block (413) is used as the output end of the movement mechanism (4) and connected with the volute (31).

3. The range hood of claim 2, wherein: the fan frame (2) comprises a fan frame top plate (21), the driving device (411) is arranged on the fan frame top plate (21), the moving block (413) is arranged on the volute top plate (311), one end of the screw rod (412) is connected with the output end of the driving device (411), and the other end of the screw rod (412) penetrates through the moving block (413) downwards and is in threaded connection with the moving block (413).

4. The range hood according to any one of claims 1 to 3, wherein: the moving mechanism (4) further comprises a sliding rail sliding block assembly (42), the sliding rail sliding block assembly (42) is arranged between the fan frame (2) and the volute (31), the sliding rail sliding block assembly (42) comprises a sliding rail (421) arranged on one of the fan frame (2) and the volute (31) and a sliding block (422) arranged on the other one of the fan frame (2) and the volute (31), the sliding rail (421) is longitudinally arranged, and the sliding block (422) is in sliding connection with the sliding rail (421).

5. The range hood according to any one of claims 1 to 3, wherein: the volute (31) further comprises a front cover plate (312) located on the front side and a rear cover plate (313) located on the rear side, and a damping device (5) used for damping the fan system (3) is arranged among the front cover plate (312), the rear cover plate (313) and the volute top plate (311).

6. The range hood of claim 5, wherein: the volute (31) comprises a volute top plate (311), a first extending portion (3111) extending out of a front cover plate (312) towards the front and a second extending portion (3112) extending out of a rear cover plate (313) towards the rear are formed on the volute top plate (311), the shock absorption device (5) comprises a first elastic piece (51), a second elastic piece (52), a third elastic piece (53) and a fourth elastic piece (54), one end of the first elastic piece (51) is connected with the left side of the front portion of the first extending portion (3111), the other end of the first elastic piece is connected with the position, close to the bottom, of the front cover plate (312), one end of the second elastic piece (52) is connected with the right side of the front portion of the first extending portion (3111), the other end of the second elastic piece is connected with the position, close to the bottom, of the front cover plate (312), one end of the third elastic piece (53) is connected with the left side of the rear portion of the second extending portion (3112), The other end of the fourth elastic piece (54) is connected with the position of the rear cover plate (313) close to the bottom, one end of the fourth elastic piece is connected with the right side of the rear part of the second extending part (3112), and the other end of the fourth elastic piece is connected with the position of the rear cover plate (313) close to the bottom.

7. The range hood according to any one of claims 1 to 3, wherein: the bottom of fan frame (2) sets up air inlet subassembly (6), air inlet subassembly (6) pass collection petticoat pipe (1) and extend to the below of collection petticoat pipe (1), the bottom of air inlet subassembly (6) is formed with fan system (3) fluid intercommunication, control and arrange first suction inlet (61) and second suction inlet (62).

8. The range hood of claim 7, wherein: the first suction port (61) is inclined downward from the front side to the rear side and upward from the bottom center to the left side, and the second suction port (62) is inclined downward from the front side to the rear side and upward from the bottom center to the right side.

9. The range hood of claim 7, wherein: the air intake assembly (6) further comprises a third suction port (63) which is arranged above the first suction port (61) and the second suction port (62) and is communicated with the fan system (3) in a fluid mode.

10. The range hood according to any one of claims 1 to 3, wherein: fan system (3) are still including seting up air outlet (316) on spiral case roof (311), fan frame (2) are still including seting up export (22) on fan frame roof (21), be provided with between air outlet (316) and export (22) can stretch out and draw back air-out pipe (7).