CN218862942U

CN218862942U - Axial flow fan with stationary blade for oil fume suction device and oil fume suction device

Info

Publication number: CN218862942U
Application number: CN202222900397.2U
Authority: CN
Inventors: 何海涛; 赵民旺; 何立博
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-14
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a take quiet leaf axial fan for oil absorption cigarette device, including the fan urceolus, along the flow direction of air current, be equipped with in this fan urceolus: the number of the static blades is at least two, and the static blades are distributed at intervals at positions close to the inner wall of the outer fan cylinder along the circumferential direction of the outer fan cylinder; the axial flow fan blade can rotate under the driving of the power mechanism; the method is characterized in that: one end of each static blade is a rotating end which can rotate relative to the outer barrel of the fan under the drive of the adjusting mechanism, and the other end of each static blade is a free end. The fixed blade rectifies the airflow, and when the airflow pressure in the public flue changes, the fixed blade is adjusted to rotate, so that the airflow resistance and the static pressure in the outer barrel of the fan are adjusted, the power mechanism is stabilized, the airflow flowing loss is reduced, the efficiency of the power mechanism is improved, the noise of the power mechanism is reduced, and the working efficiency and the stability of the power mechanism are improved.

Description

Axial flow fan with stationary blade for oil fume suction device and oil fume suction device

Technical Field

The utility model relates to an oil smoke purifier, concretely relates to take quiet leaf axial fan, oil fume sucking device for oil fume sucking device.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, and finishes the purification work of the air in a kitchen by sucking and exhausting oil smoke through a fan arranged in the range hood. The axial flow fan is one of the existing fans used in the range hood, an outlet of the range hood is usually externally connected with a common flue and is changed by the pressure of airflow in the common flue, under the operating condition of low load or high load of a motor, the suction surface of a fan blade of the axial flow fan is easy to generate boundary layer separation and stall phenomena, the supercharging capacity of the fan is damaged, the fan forms a surge phenomenon, airflow in the range hood is relatively disordered, and the noise of the range hood and the smoke exhaust efficiency are reduced. Therefore, in the prior art, the fixed blade is arranged on the axial flow fan to rectify the airflow, so that the flow and the air pressure of the airflow in the range hood are changed, the working stability of the fan is improved, the noise of the range hood is reduced, and the oil fume suction and exhaust efficiency is improved.

If chinese utility model patent 'a range hood' of announcement No. CN216788745U (application No. 202122785094.6) discloses including collection petticoat pipe and the fan frame of setting in collection petticoat pipe top, the inboard of fan frame is provided with the fan system, and on the route that the air current flows, the low reaches of fan system still is provided with the supplementary row of arranging device of supplementary oil smoke exhaust, helps the row of arranging device and includes the casing and sets up the helping to discharge the movable vane that can do work to the air current in the casing. The discharge assisting device comprises a shell and discharge assisting movable blades capable of doing work on airflow, each discharge assisting movable blade comprises a first blade and a first mounting frame, the first blade is provided with at least two blades and is arranged on the peripheral wall of the first mounting frame, and the first blades are arranged at intervals along the circumferential direction of the first mounting frame; the displacement-assisting blade further comprises a driving mechanism for driving the first blade to rotate. The discharge assisting device further comprises a discharge assisting stationary blade capable of converting dynamic pressure of an outlet airflow of the discharge assisting movable blade into static pressure, the discharge assisting stationary blade is fixed in the housing, and the discharge assisting movable blade is positioned upstream of the discharge assisting stationary blade on a path of airflow flow. The utility model discloses an in, set up the quiet leaf through the low reaches at the row of helping movable vane, improve the static pressure of the row's of helping device exit air current to improve the performance of the row's of helping device, reduce the range hood noise and improve smoke exhaust efficiency, nevertheless quiet leaf helps row device casing fixed relatively, when airflow pressure changes in public flue, can't adjust the interior airflow static pressure of range hood, helps row device actuating mechanism's stationarity difficult assurance, influences range hood's even running.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a take quiet leaf axial fan for range hood device that noise reduction, improvement work efficiency and stationarity are provided.

The utility model aims to solve the second technical problem that an oil absorption cigarette device that uses to have above-mentioned quiet leaf axial fan of area is provided.

The utility model provides a technical scheme that first technical problem adopted does: the utility model provides a take quiet leaf axial fan for range hood device, includes the fan urceolus, along the flow direction of air current, is equipped with in this fan urceolus:

at least two stationary blades are distributed at intervals on the inner wall of the fan outer cylinder along the circumferential direction of the fan outer cylinder;

the axial flow fan blade can rotate under the driving of the power mechanism;

the method is characterized in that:

one end of each stationary blade is a rotating end which can rotate relative to the outer barrel of the fan under the drive of the adjusting mechanism, and the other end of each stationary blade is a free end.

Preferably, the fan outer cylinder is divided into a front cylinder, a middle cylinder and a rear cylinder along the flowing direction of the airflow, and the stator blade is mounted on the middle cylinder.

For realizing that quiet leaf relatively well section of thick bamboo rotates, as the preferred, still include adjustment mechanism, set up the outside of well section of thick bamboo, the periphery wall of a well section of thick bamboo is exposed to the rotation end of quiet leaf, adjustment mechanism is connected with the rotation end of quiet leaf to adjust quiet leaf and rotate, so, the erosion of the interior oil smoke of a well section of thick bamboo can be avoided to the adjustment mechanism who sets up in the well section of thick bamboo outside, guarantees quiet leaf pivoted stationarity.

The design of the adjusting mechanism is various, and preferably, the adjusting mechanism comprises

A drive device having a power output;

a driving gear installed on a power output end of the driving device;

a driven gear mounted on a rotating end of each stationary blade; and

the transmission gear is annular and is sleeved on the outer peripheral wall of the middle cylinder, a first end face of the transmission gear in the axial direction is provided with a first gear ring meshed with the driving gear, and a second end face of the transmission gear is provided with a second gear ring meshed with the driven gear.

Driven gear installs the rotation end of each quiet leaf and holds the mode and have a plurality ofly, as preferred, the last mounting hole that supplies the rotation end of quiet leaf to pass that is provided with of driven gear, the last spacing hole that is provided with of driven gear, be provided with on the rotation end and be located the relative driven gear pivoted locating part of spacing downthehole restriction quiet leaf.

In order to prevent the driven gear from coming off the rotating end of the stationary blade, a lock nut screwed to the rotating end of the stationary blade is preferably provided above the driven gear.

The connection mode of the middle cylinder and the rear cylinder is various, preferably, the transmission gear is arranged between the middle cylinder and the rear cylinder, one end, close to the middle cylinder, of the transmission gear is sleeved on the peripheral wall of the middle cylinder, and the end face of the other end of the transmission gear is recessed inwards to form a slot for the insertion of the rear cylinder.

The utility model provides a technical scheme that second technical problem adopted does: the utility model provides an use and have above-mentioned oil smoke sucking device who takes quiet leaf axial fan, has the oil smoke passageway, its characterized in that: take quiet leaf axial fan set up on this oil smoke passageway, promptly, the fan urceolus as tobacco pipe, at least be one of them section in the oil smoke passageway, so, when airflow pressure changes in public flue, rotate through adjusting quiet leaf, carry out the rectification to the air current, change the flow and the wind pressure of air current in the oil absorption cigarette device, improve axial fan's job stabilization nature, reduce the range hood noise and improve the suction and exhaust oil smoke efficiency.

In order to increase the acting capacity to the air current, improve the air current flow of oil smoke passageway, promote the oil absorption cigarette effect, as preferred, along the flow direction of air current, the oil smoke passageway including collection petticoat pipe, play wind cover and tobacco pipe, the collection petticoat pipe has the air intake, the tobacco pipe has the air outlet, and, be provided with first fan in going out the wind cover.

Preferably, the range hood is an integrated cooker and comprises a box body and a cooker arranged on the box body, the air outlet cover is positioned in the box body, the fume collecting cover is positioned above the box body, the first fan is an axial flow fan, the axis of the first fan basically extends along the vertical direction, and the outer cylinder of the fan basically extends along the horizontal direction.

Compared with the prior art, the utility model has the advantages of: its one end of every quiet leaf is the rotatory end that can rotate relative to the fan urceolus under the adjustment mechanism drive, and the other end is the free end, and quiet leaf rectifies the air current, and when the air current pressure changed in public flue, through adjusting quiet leaf and rotating, airflow resistance and static pressure in the fan urceolus were adjusted to stable power unit reduces the air current flow loss and improves power unit efficiency, reduces power unit's noise, improves power unit's work efficiency and stationarity.

Drawings

Fig. 1 is a schematic structural view of an axial flow fan with stationary blades according to an embodiment of the present invention.

Fig. 2 is an exploded view of an axial flow fan with stationary blades according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an adjusting mechanism of an axial flow fan with stationary blades according to an embodiment of the present invention.

Fig. 4 is an exploded view of an adjusting mechanism of an axial flow fan with stationary blades according to an embodiment of the present invention.

Fig. 5 is a sectional view of an adjusting mechanism of an axial flow fan with stationary blades according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of an integrated cooker in the embodiment of the present invention.

Fig. 7 is an enlarged view taken at i in fig. 6.

Fig. 8 is a schematic structural view of an integrated cooker in the embodiment of the present invention.

Fig. 9 is an enlarged view of point ii in fig. 8.

Detailed Description

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

Referring to fig. 1 to 5, the axial flow fan with stationary blades for a range hood includes a fan outer cylinder 4, stationary blades 42, axial flow fan blades 43 and an adjusting mechanism.

The fan outer cylinder 4 is divided into a front cylinder 44, a middle cylinder 41 and a rear cylinder 45 along the flow direction of the airflow, and the stationary blades 42 are mounted on the middle cylinder 41. The axial fan 43 is disposed in the rear cylinder 45 and can be rotated by a power mechanism.

At least two stationary vanes 42 are distributed at intervals on the inner wall of the fan middle cylinder 41 along the circumferential direction of the middle cylinder 41; one end of the rotating end 421 can rotate relative to the middle cylinder 41 of the fan under the drive of the adjusting mechanism, and the other end is a free end 422. The rotating end 421 of the stationary blade 42 is exposed to the outer peripheral wall of the inner cylinder 41. The rotation end 421 is provided with a stopper 423.

The adjusting mechanism is disposed outside the inner tube 41 and connected to the rotating end 421 of the stationary blade 42 to adjust the rotation of the stationary blade 42. Comprises a driving device 5 having a power output end 51, a driving gear 61 mounted on the power output end 51 of the driving device 5, a driven gear 63 mounted on a rotating end 421 of each stationary blade 42, and a transmission gear 62. The transmission gear 62 is annular and is fitted around the outer peripheral wall of the middle cylinder 41, and has a first end face in the axial direction formed with a first ring gear 621 meshed with the driving gear 61 and a second end face formed with a second ring gear 622 meshed with the driven gear 63. The driven gear 63 is provided with a mounting hole 631 through which the rotating end 421 of the stationary blade 42 passes, the driven gear 63 is provided with a limiting hole 632, and the stopper 423 is located in the limiting hole 632 to limit the stationary blade 42 from rotating relative to the driven gear 63. In this embodiment, the limiting hole 632 is formed by the inner wall of the mounting hole 631 being recessed outward, and the limiting member 423 is formed by the surface of the rotation end 421 being protruded outward. A lock nut 7 screwed to a rotating end 421 of the stationary blade 42 is provided above the driven gear 63. The transmission gear 62 is arranged between the middle cylinder 41 and the rear cylinder 45, one end of the transmission gear 62 close to the middle cylinder 41 is sleeved on the outer peripheral wall of the middle cylinder 41, and the end face of the other end of the transmission gear 62 is recessed inwards to form a slot 623 for the rear cylinder 45 to be inserted.

Referring to fig. 6 to 9, the range hood apparatus in this embodiment is an integrated kitchen range, and includes a smoke passage 10, which includes a box 7 and a kitchen range 71 disposed on the box 7, the smoke passage 10 includes a smoke collecting cover 1a, an air outlet cover 1b and a smoke pipe 1c, the smoke collecting cover 1a has an air inlet 11, the smoke pipe 1c has an air outlet 12, the air outlet cover 1b is located in the box 7, the smoke collecting cover 1a is located above the box 7, a first fan 3 is disposed in the air outlet cover 1b, a fan outer cylinder 4 is used as one section of the smoke pipe 1c, the first fan 3 is an axial flow fan, an axis of the first fan 3 extends substantially vertically, and the fan outer cylinder 4 extends substantially horizontally.

Claims

1. A take quiet leaf axial fan for range hood device, including fan urceolus (4), along the flow direction of air current, be equipped with in this fan urceolus (4):

at least two stationary blades (42) are distributed at intervals on the positions close to the inner wall of the fan outer cylinder (4) along the circumferential direction of the fan outer cylinder (4);

the axial flow fan blade (43) can rotate under the driving of the power mechanism;

the method is characterized in that:

and one end of each static blade (42) is a rotating end (421) which can rotate relative to the outer barrel (4) of the fan under the driving of the adjusting mechanism, and the other end of each static blade is a free end (422).

2. The stationary blade axial flow fan according to claim 1, wherein: along the flowing direction of the airflow, the fan outer cylinder (4) is divided into a front cylinder (44), a middle cylinder (41) and a rear cylinder (45), and the stator blades (42) are installed on the middle cylinder (41).

3. The stationary blade axial flow fan according to claim 2, wherein: the adjusting mechanism is arranged on the outer side of the middle cylinder (41), the rotating end (421) of the static blade (42) is exposed out of the outer peripheral wall of the middle cylinder (41), and the adjusting mechanism is connected with the rotating end (421) of the static blade (42) to adjust the rotation of the static blade (42).

4. The stationary blade axial flow fan according to claim 3, wherein: the adjusting mechanism comprises

A drive device (5) having a power take-off (51);

a driving gear (61) mounted on the power output end (51) of the driving device (5);

a driven gear (63) attached to a rotating end (421) of each stationary blade (42); and

and the transmission gear (62) is annular and is sleeved on the outer peripheral wall of the middle cylinder (41), a first end face of the transmission gear in the axial direction is provided with a first gear ring (621) meshed with the driving gear (61), and a second end face of the transmission gear is provided with a second gear ring (622) meshed with the driven gear (63).

5. The stationary blade axial flow fan according to claim 4, wherein: the driven gear (63) is provided with a mounting hole (631) for a rotating end (421) of the stationary blade (42) to penetrate, the driven gear (63) is provided with a limiting hole (632), and the rotating end (421) is provided with a limiting piece (423) which is located in the limiting hole (632) and limits the stationary blade (42) to rotate relative to the driven gear (63).

6. The stationary blade axial flow fan according to claim 4, wherein: and a locking nut in threaded connection with the rotating end (421) of the stationary blade (42) is arranged above the driven gear (63).

7. The stationary blade axial flow fan according to claim 6, wherein: the transmission gear (62) is arranged between the middle cylinder (41) and the rear cylinder (45), one end, close to the middle cylinder (41), of the transmission gear (62) is sleeved on the peripheral wall of the middle cylinder (41), and the end face of the other end of the transmission gear (62) is recessed inwards to form a slot (623) for the rear cylinder (45) to be inserted.

8. An oil fume suction device using the stationary blade axial flow fan according to any one of claims 1 to 7, having an oil fume passage (10), characterized in that: the axial flow fan with the static blades is arranged on the oil smoke channel (10), namely, the outer cylinder (4) of the fan is used as a smoke tube (1 c) and is at least one section of the oil smoke channel (10).

9. The range hood assembly according to claim 8, wherein the range hood channel (10) comprises a range hood (1 a), an outlet hood (1 b) and a smoke tube (1 c) along the flowing direction of the airflow, the range hood (1 a) has an air inlet (11), the smoke tube (1 c) has an air outlet (12), and the outlet hood (1 b) is internally provided with the first fan (3).

10. The range hood assembly according to claim 9, characterized in that it is an integrated kitchen range comprising a box body (7) and a kitchen range (71) disposed on the box body (7), the outlet hood (1 b) is located inside the box body (7), the exhaust hood (1 a) is located above the box body (7), the first fan (3) is an axial fan, an axis of the first fan (3) extends substantially vertically, and the fan outer cylinder (4) extends substantially horizontally.