CN209026895U - A kind of range hood - Google Patents

Abstract

The utility model relates to a kind of range hoods, exhaust fume collecting hood including being equipped with air inlet, being equipped in the front side of exhaust fume collecting hood can be relative to the smoke deflector that exhaust fume collecting hood is mobile to open and close air inlet, and smoke deflector includes two the first smoke deflectors for being located at the left and right sides and the second smoke deflector between two the first smoke deflectors；Under smoke deflector opening state, second smoke deflector is located on front side of the first smoke deflector, first smoke deflector is located remotely from rear side of the side of the second smoke deflector in the lateral direction adjacent to the side of the second smoke deflector, second smoke deflector forms main air inlet between the first adjacent smoke deflector in the lateral direction, and first smoke deflector forms auxiliary air inlet opening between exhaust fume collecting hood in the lateral direction.The main air inlet of the utility model wind-force close from blower is powerful, and auxiliary air inlet opening plays the role of anti-race cigarette (being sucked when the oil smoke of escape is moved along exhaust fume collecting hood two sides by auxiliary air inlet opening), and multiple air inlet cooperations reach optimal smoke absorption effect.

Description

A kind of range hood

Technical field

The utility model relates to a kind of range hoods of household, and in particular to a kind of range hood with smoke deflector.

Background technique

Smoke deflector is arranged in air inlet mostly in existing range hood, and smoke deflector and air inlet reserve a certain distance, Effectively oil smoke condensation can be separated, so that oil absorption efficiency is relatively high.

As disclosed in the utility model patent of Patent No. ZL201721255538.2 (notification number CN207196589U) " a kind of side extraction cooking fume extractor ", the front of air inlet is arranged in smoke deflector.

Current smoke deflector is mostly an entire plate, the air inlet of such smoke deflector is single, separate as shown in above-mentioned patent The oil smoke of air inlet is easy escape；In addition, can oppress fan performance if smoke deflector is big plane, lose more air quantity, noise Greatly, poor for the capture of the oil smoke of fast speed, easily run cigarette.

Though there is the middle promulgated by the State Council of some patents such as Patent No. ZL201611057819.7 (publication No. CN108105813A) Shown in " a kind of side-suction type range hood " of bright patent disclosure, left deflector (i.e. smoke deflector), right deflector are set in air inlet With the fixed baffle for being located at middle part, left deflector, right deflector and fixed baffle just cover entire air inlet；Or as specially " a kind of nearly suction disclosed in Chinese utility model patent of the benefit number for ZL201721290304.1 (notification number CN207214201U) Formula range hood " shown in, the smoke deflector of the range hood include the left and right sides movable first smoke deflector and be located at two Second smoke deflector of the fixation between the first smoke deflector, the first smoke deflector can direction or outside direction movements into shell.

Though smoke deflector segment design is muti-piece by aforementioned patent, solve that existing air inlet is single to ask to a certain extent Topic, but fixed baffle and the second smoke deflector can still oppress blower, cause the performance of blower that cannot discharge completely, and blower is made an uproar Sound is big.

From the foregoing, it will be observed that the smoke deflector of existing range hood still needs further improvement.

Utility model content

First technical problem to be solved in the utility model is the status for the prior art, provide it is a kind of by Multiple air inlets are formed between smoke deflector to solve the problems, such as the range hood of compressing fan performance.

Second technical problem to be solved in the utility model is the status for the prior art, is provided a kind of by making The range hood that smoke deflector prevents air-flow from liquidating in air inlet water conservancy diversion.

Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of range hood, including be equipped with into The exhaust fume collecting hood in air port, being equipped in the front side of the exhaust fume collecting hood can make under driving mechanism driving relative to exhaust fume collecting hood movement or deflection The smoke deflector of air inlet opening and closing, the smoke deflector include being located at two the first smoke deflectors of the left and right sides and positioned at two The second smoke deflector between first smoke deflector；

It is characterized by: second smoke deflector is located at the first smoke deflector in the case where the air inlet is in the open state Front side, first smoke deflector is in the lateral direction behind the side that the side of the second smoke deflector is located remotely from the second smoke deflector Side, second smoke deflector form main air inlet between the first adjacent smoke deflector in the lateral direction, and described first leads cigarette Plate forms auxiliary air inlet opening between exhaust fume collecting hood in the lateral direction.

Because entering the air current flow direction of two main air inlets on the contrary, to prevent the air-flow for entering two main air inlets from generating It liquidates, the central part of second smoke deflector is recessed backward forms concave portion, and the female portion includes left side wall and the right side Side wall and the roof for connecting left side wall and right side wall, and the left side wall is tilted to the right from front to back, and the right side wall is certainly Forward-backward algorithm left bank.In this way, left side wall and right side wall carry out water conservancy diversion to the air-flow of entrance, airflow smooth is imported on exhaust fume collecting hood Air inlet, avoiding the problem that two sidewinds liquidate causes air-flow smooth cannot suck and causes noise.

The female portion can have a variety of structures form, as long as the side wall of the left and right sides being capable of water conservancy diversion, it is preferable that institute Stating the angle between left side wall and roof is 5 °~10 °, and the angle between the right side wall and roof is 5 °~10 °, to reach Optimal diversion effect.

To further increase the diversion effect to oil smoke, first smoke deflector in the on-state where plane with respect to the Place plane has angle to one smoke deflector in the off state, which is 8 °~12 °.If angle assists air draught less than 8 ° Effect is unobvious, if angle is greater than 12 °, auxiliary air inlet opening and main air inlet rob air quantity, is unfavorable for the reasonable layout of negative pressure, and easily It causes the first smoke deflector to lead cigarette declines, influences smoking effect.

For the formation convenient for main air inlet, it is preferable that the main air inlet is by the described driving mechanism driving described the Two smoke deflectors protract or/and first smoke deflector are driven to deflect and formed.

For the formation convenient for auxiliary air inlet opening, it is preferable that the auxiliary air inlet opening drives institute by the driving mechanism It states the deflection of the first smoke deflector or/and extension and is formed.

Preferably, the driving mechanism includes driving device and the second smoke deflector is arranged in and its first of linkage leads cigarette Linkage mechanism between plate, the driving device are connected with second smoke deflector driving.So it is arranged without each smoke deflector A set of driving device reduces the quantity of driving device, it is few to be related to component.

The linkage mechanism can have a variety of structures form, it is preferable that the linkage mechanism includes the first mounting base, connecting rod With the second mounting base, first mounting base is set to the first smoke deflector front end face, and second mounting base is set to the second smoke deflector Back, and the first mounting base and the second mounting base be respectively adjacent to the first smoke deflector and the second smoke deflector it is adjacent two sides setting, The connecting rod extends in left-right direction, and the first end of connecting rod is rotatably installed in the first mounting base, the second end rotation of connecting rod It is mounted in the second mounting base, the connecting rod opposite second smoke deflector swing in the state that the second smoke deflector is mobile.

It is limited for the deflected trajectory to the first smoke deflector, rotation is equipped with shaft on the exhaust fume collecting hood, and the shaft is neighbouring The side of first smoke deflector adjacent with the second smoke deflector is arranged, and extends along the side edge length direction of aforementioned first smoke deflector, The back of first smoke deflector is connected with shaft.

The driving device can have a variety of structures form, it is preferable that the driving device includes motor and and motor The transmission mechanism for driving the second smoke deflector to be moved forward and backward of output end connection, the driving end of the transmission mechanism is led with second Cigarette plate is connected.

The transmission mechanism can have a variety of structures form, it is preferable that the transmission mechanism includes screw rod, motor, connection Part and push rod, the screw rod are driven by motor and extend along the longitudinal direction, and the connector is threadedly connected on screw rod, described to push away Bar extends along the longitudinal direction, and one end is connected with connector, and the other end is connected with the second smoke deflector.Motor driven screw rod turns Dynamic, connector is moved forward and backward on screw rod when screw rod rotates, and push rod is driven to be moved forward and backward, and then is moved before and after the second smoke deflector of promotion It is dynamic.

For convenient for driving device to be assemblied on range hood, the motor is fixed on a fixed frame, the fixed frame Opposite exhaust fume collecting hood is fixedly installed, and the push rod passes through fixed frame and is connected with the second smoke deflector.So first driving device is integrally filled It is assemblied on exhaust fume collecting hood assigned on fixed frame, then by fixed frame, it is easy to assembly；And fixed frame can also be to the motion track of push rod It is oriented to.

For side extraction cooking fume extractor, the smoke deflector is in the closed state, second smoke deflector and two described One smoke deflector gradually tilts backwards from top to bottom, and covers the front side of the plane where air inlet.Such smoke deflector is being closed The panel that range hood is acted not only as under state also has relative to top-sucking kitchen ventilator and more preferably leads cigarette effect, because For side extraction cooking fume extractor, oil smoke can be moved up along smoke deflector, and smoke deflector is longer to the water conservancy diversion process of oil smoke, specifically Are as follows: side extraction cooking fume extractor is bottom air inlet, and the traffic direction of air-flow can generate wall attachment effect along smoke deflector, and air-flow Traffic direction is inherently upward, can also generate stack effect；And for top-sucking kitchen ventilator, oil smoke ascension to smoke deflector Place is inhaled into air inlet quickly, and water conservancy diversion process is shorter.

For prevent smoke deflector when moving between exhaust fume collecting hood generate interference, the smoke deflector in the lateral direction with collection cigarette There is certain spacing between cover.

Further to improve smoking effect, the width of first smoke deflector in the lateral direction accounts for the second smoke deflector and exists The 0.5~0.8 of width on left and right directions.When the first smoke deflector width 50% less than the second smoke deflector width, second leads cigarette Plate is wide, and when range hood works, main air inlet is remote with a distance from blower, and negative pressure value is lower.When the first smoke deflector width is greater than the Two smoke deflector width 80% when, when range hood works, the deflection of the first smoke deflector can block air inlet on exhaust fume collecting hood, blower Performance cannot be released completely, influence maximum quantity of wind, increase noise.

Compared with prior art, the advantages of the utility model: 1, the utility model is by setting three pieces for smoke deflector, position The first smoke deflector in the left and right sides can deflect, and being located in the middle the second smoke deflector can move forward with respect to air inlet, from And the second smoke deflector is made to form main air inlet between the first adjacent smoke deflector in the lateral direction, the first smoke deflector is in left and right Auxiliary air inlet opening is formed on direction between exhaust fume collecting hood, main air inlet wind-force close from blower is powerful, and auxiliary air inlet opening plays anti-race The effect (being sucked when the oil smoke of escape is moved along exhaust fume collecting hood two sides by auxiliary air inlet opening) of cigarette, multiple air inlet (i.e. main air inlets And auxiliary air inlet opening) cooperation reach optimal smoke absorption effect；And second smoke deflector Forward, avoid the compressing to blower, energy Enough sufficiently release fan performances, maximum quantity of wind increase, and improve smoking effect, and reduce fan noise；2, the first smoke deflector phase Second smoke deflector is obliquely installed, it can be along the inclination angle of the first smoke deflector when oil smoke enters main air inlet, auxiliary air inlet opening Degree enter exhaust fume collecting hood upper air inlet so that air-flow flowing it is more smooth, and solve air-flow from two sides main air inlet, assist into It liquidates when air port enters the problem of causing noise；3, concave portion, the left side wall of concave portion and right side are provided on the second smoke deflector Wall has guide functions to air-flow, avoids and enters the wind contrary two strands of air-flows and liquidate, not only cause air-flow cannot it is smooth into Enter air inlet, also lead to the problem of noise.

Detailed description of the invention

Fig. 1 is the structural schematic diagram (smoke deflector is in the open state) of the utility model embodiment；

Fig. 2 is the structural schematic diagram of the other direction of Fig. 1；

Fig. 3 is the decomposition diagram of Fig. 1；

Fig. 4 is the assembling schematic diagram of the driving device and exhaust fume collecting hood in Fig. 1；

Fig. 5 is the structural schematic diagram of the driving device in Fig. 4；

Fig. 6 is the structural schematic diagram (smoke deflector is in close state) of the utility model embodiment；

Fig. 7 is the structural schematic diagram of the smoke deflector in Fig. 6.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As shown in Fig. 1~7, the range hood of this preferred embodiment include casing, the exhaust fume collecting hood 1 equipped with air inlet 11 and Blower fan system, exhaust fume collecting hood 1 are set to casing front, and blower fan system is set in casing, and air inlet 11 is connected with blower fan system.

Being equipped in the front side of exhaust fume collecting hood 1 makes air inlet 11 relative to the movement of exhaust fume collecting hood 1 or deflection under the action of the drive mechanism The smoke deflector 2 of opening and closing, smoke deflector 2 include being located at two the first smoke deflectors 21 of the left and right sides and leading positioned at two first The second smoke deflector 22 between cigarette plate 21, the width of the first smoke deflector 21 in the lateral direction account for the second smoke deflector 22 in right and left 0.5~0.8, preferably the 0.6 of upward width.

Driving mechanism drives the deflection of the first smoke deflector 21 and the second smoke deflector 22 of driving to forward extend out or reset backward, thus Form main air inlet 23 between the second smoke deflector 22 and the first adjacent smoke deflector 21, the first smoke deflector 21 and exhaust fume collecting hood 1 it Between formed auxiliary air inlet opening 24.

In other words, under 11 opening state of air inlet, the second smoke deflector 22 is located at 21 front side of the first smoke deflector, and first leads cigarette Plate 21 is located remotely from rear side of the side of the second smoke deflector 22 in the lateral direction adjacent to the side of the second smoke deflector 22, and second leads cigarette Plate 22 forms main air inlet 23 between the first adjacent smoke deflector 21 in the lateral direction, and the first smoke deflector 21 is in left and right directions It is upper that auxiliary air inlet opening 24 is formed between exhaust fume collecting hood 1.In smoking, oil smoke bumps against that two piece of first smoke deflector 21 is enterprising to become owner of first Air inlet 23, the wind-force close from blower of main air inlet 23 is powerful, by auxiliary air inlet opening when the oil smoke of escape is moved along 1 two sides of exhaust fume collecting hood 24 suckings, to prevent from running cigarette, multiple air inlet (i.e. main air inlet 23 and auxiliary air inlet opening 24) cooperations reach optimal fume-exhausting Effect；And the second smoke deflector 22 moves forward, and avoids the compressing to blower, can sufficiently discharge fan performance, and maximum quantity of wind increases Add, improves smoking effect, and reduce fan noise.

Wherein main air inlet 23 drives the second smoke deflector 22 extension by driving mechanism or/and drives first smoke deflector 21 It deflects and is formed；Wherein auxiliary air inlet opening 24 is driven the deflection of the first smoke deflector 21 or/and extension by driving mechanism and is formed.I.e. One smoke deflector 21 and the second smoke deflector 22 can be driven respectively by driving mechanism or the first smoke deflector 21 is as active plate, and second leads Cigarette plate 22 is used as active plate as the follower plate or the second smoke deflector 22 to link with the first smoke deflector 21, and the first smoke deflector 21 is made For the follower plate to link with the second smoke deflector 22.

In the present embodiment, the second smoke deflector 22 is used as active plate, and the first smoke deflector 21 links as with the second smoke deflector 22 Follower plate.Driving mechanism include driving device 3 and be arranged in the second smoke deflector 22 and its linkage the first smoke deflector 21 it Between linkage mechanism 4, linkage mechanism 4 includes the first mounting base 41, connecting rod 42 and the second mounting base 43, and the first mounting base 41 is set to First smoke deflector, 21 front end face, the second mounting base 43 are set to 22 back of the second smoke deflector, and the first mounting base 41 and the second installation Seat 43 is respectively adjacent to the first smoke deflector 21 and the adjacent two sides setting of the second smoke deflector 22, and connecting rod 42 extends in left-right direction, And the first end of connecting rod 42 is rotatably installed in the first mounting base 41, the second end of connecting rod 42 is rotatably installed in the second mounting base 43 On, opposite second smoke deflector, 22 swing in the state that the second smoke deflector 22 is mobile of connecting rod 42.

Driving device 3 include motor 31 and connect with 31 output end of motor for driving the second smoke deflector 22 before and after move Dynamic transmission mechanism, transmission mechanism include screw rod 32, motor 31, connector 34 and push rod 35, and it is solid that the back of exhaust fume collecting hood 1 is equipped with one Determine frame 36, motor 31 is fixed on fixed frame 36, and screw rod 32 is driven and extended along the longitudinal direction, 34 spiral shell of connector by motor 31 Line is connected on screw rod 32, and push rod 35 extends along the longitudinal direction, and one end is connected with connector 34, and the other end passes through fixed frame 36 are connected with a link block 37, which is set on the second smoke deflector 22.Motor 31 drives screw rod 32 to rotate, and 32 turns of screw rod Connector 34 is moved forward and backward on screw rod 32 when dynamic, and push rod 35 is driven to be moved forward and backward, and then is moved before and after the second smoke deflector 22 of promotion It is dynamic.

Exhaust fume collecting hood 1 is equipped with bracket 13, and rotation is equipped with shaft 12 on bracket 13, and the shaft 12 is neighbouring with the second smoke deflector 22 The side of the first adjacent smoke deflector 21 is arranged, and extends along the side edge length direction of aforementioned first smoke deflector 21, and first leads cigarette The back of plate 21 is equipped with third mounting base 215, and the third mounting base 215 and shaft 12 are rotatablely connected, to the first smoke deflector 21 Deflected trajectory limited, prevent the first smoke deflector 21 deflection when run-off the straight.

In addition, the first smoke deflector 21 in the on-state where plane with respect to the first smoke deflector 21 in the off state place Plane has angle, which is 8 °~12 °, preferably 10 °.

Under 2 closed state of smoke deflector, the second smoke deflector 22 and two the first smoke deflectors 21 are from top to bottom gradually backward Inclination, and cover in the front side of 11 place plane of air inlet.And smoke deflector 2 has between exhaust fume collecting hood 1 in the lateral direction Certain spacing, the spacing are not less than 3mm, prevent from generating interference between smoke deflector 2 and exhaust fume collecting hood 1.

Because entering the air current flow direction of two main air inlets 23 on the contrary, to prevent the air-flow into two main air inlets 23 Generation liquidates, and the central part of the second smoke deflector 22 is recessed backward forms concave portion 25, and concave portion 25 includes being located at a left side Left side wall 251, right side wall 252 and the roof 253 for connecting left side wall 251 and right side wall 252 of right two sides, left side wall 251 is certainly Forward-backward algorithm right bank, the angle between left side wall 251 and roof 253 are 5 °~10 °, and right side wall 252 inclines to the left from front to back Tiltedly, the angle between right side wall 252 and roof 253 is 5 °~10 °.In this way, the gas of left side wall 251 and 252 pairs of right side wall entrance Stream carries out water conservancy diversion, airflow smooth is imported the air inlet 11 on exhaust fume collecting hood 1, avoiding two sidewinds from liquidating causes air-flow smooth The problem of sucking and causing noise.

It is applied on above-mentioned side extraction cooking fume extractor in addition, the smoke deflector structure of the utility model embodiment is not limited to, It can also be applied on top-sucking kitchen ventilator, only the structure of this smoke deflector is applied to have on side extraction cooking fume extractor better Cigarette effect is led, because side extraction cooking fume extractor is bottom air inlet, the traffic direction of air-flow can generate wall attachment effect along smoke deflector, lead Stream process is longer, and the traffic direction of air-flow is inherently upward, can also generate stack effect；And for top suction type oil suction Smoke machine is inhaled into air inlet at oil smoke ascension to smoke deflector quickly, and water conservancy diversion process is shorter.

Claims (15)

1. a kind of range hood, the exhaust fume collecting hood (1) including being equipped with air inlet (11) are equipped with energy in the front side of the exhaust fume collecting hood (1) The smoke deflector (2) for opening and closing air inlet (11) relative to exhaust fume collecting hood (1) movement or deflection under driving mechanism driving, it is described to lead cigarette Plate (2) includes being located at two piece of first smoke deflector (21) of the left and right sides and being located between two piece of first smoke deflector (21) Second smoke deflector (22)；

It is characterized by: second smoke deflector (22) is located at first and leads in the case where the air inlet (11) is in the open state On front side of cigarette plate (21), first smoke deflector (21) is located remotely from the adjacent to the side of the second smoke deflector (22) in the lateral direction On rear side of the sides of two smoke deflectors (22), second smoke deflector (22) in the lateral direction with adjacent the first smoke deflector (21) it Between form main air inlet (23), first smoke deflector (21) forms auxiliary air inlet between exhaust fume collecting hood (1) in the lateral direction Mouth (24).

2. range hood according to claim 1, it is characterised in that: the central part of second smoke deflector (22) is backward Recess is formed concave portion (25), and the female portion (25) have both left side wall (251) and right side wall (252) and connection Roof (253), and the left side wall (251) is tilted to the right from front to back, and the right side wall (252) inclines to the left from front to back Tiltedly.

3. range hood according to claim 2, it is characterised in that: between the left side wall (251) and roof (253) Angle is 5 °~10 °, and the angle between the right side wall (252) and roof (253) is 5 °~10 °.

4. range hood according to claim 1, it is characterised in that: first smoke deflector (21) institute in the on-state In plane, with respect to the first smoke deflector (21), place plane has angle in the off state, which is 8 °~12 °.

5. range hood according to claim 1, it is characterised in that: the main air inlet (23) is by the driving machine Structure drives the second smoke deflector (22) extension or/and first smoke deflector (21) is driven to deflect and formed.

6. range hood according to claim 5, it is characterised in that: the auxiliary air inlet opening (24) is by the driving Mechanism drives the first smoke deflector (21) deflection or/and extension and is formed.

7. range hood according to claim 6, it is characterised in that: the driving mechanism include driving device (3) and Linkage mechanism (4) between the second smoke deflector (22) and its first smoke deflector (21) of linkage, the driving device are set (3) it is connected with second smoke deflector (22) driving.

8. range hood according to claim 7, it is characterised in that: the linkage mechanism (4) includes the first mounting base (41), connecting rod (42) and the second mounting base (43), first mounting base (41) is set to the first smoke deflector (21) front end face, described Second mounting base (43) is set to the second smoke deflector (22) back, and the first mounting base (41) and the second mounting base (43) are respectively adjacent to First smoke deflector (21) and the adjacent two sides setting of the second smoke deflector (22), the connecting rod (42) extends in left-right direction, and The first end of connecting rod (42) is rotatably installed on the first mounting base (41), and the second end of connecting rod (42) is rotatably installed in the second installation On seat (43), the connecting rod (42) opposite second smoke deflector (22) swing in the state that the second smoke deflector (22) are mobile.

9. range hood according to claim 8, it is characterised in that: rotation is equipped with shaft (12) on the exhaust fume collecting hood (1), The side of neighbouring first smoke deflector (21) adjacent with the second smoke deflector (22) of the shaft (12) is arranged, and leads cigarette along aforementioned first The side edge length direction of plate (21) extends, and back and the shaft (12) of first smoke deflector (21) are rotatedly connected.

10. range hood according to claim 7, it is characterised in that: the driving device (3) include motor (31) and The transmission mechanism for driving the second smoke deflector (22) to be moved forward and backward being connect with motor (31) output end, the transmission mechanism Driving end is connected with the second smoke deflector (22).

11. range hood according to claim 10, it is characterised in that: the transmission mechanism includes screw rod (32), connection Part (34) and push rod (35), the screw rod (32) are driven and are extended along the longitudinal direction, connector (34) spiral shell by motor (31) Line is connected on screw rod (32), and the push rod (35) extends along the longitudinal direction, and one end is connected with connector (34), the other end It is connected with the second smoke deflector (22).

12. range hood according to claim 11, it is characterised in that: the motor (31) is fixed at a fixed frame (36) on, which is fixedly installed with respect to exhaust fume collecting hood (1), and the push rod (35) passes through fixed frame (36) and second and leads cigarette Plate (22) is connected.

13. range hood according to claim 1, it is characterised in that: the smoke deflector (2) is in the closed state, described Second smoke deflector (22) and two first smoke deflectors (21) gradually tilt backwards from top to bottom, and cover in air inlet (11) front side of plane where.

14. range hood according to claim 12, it is characterised in that: the smoke deflector (2) in the lateral direction with collection There is certain spacing between petticoat pipe (1).

15. range hood according to claim 1, it is characterised in that: first smoke deflector (21) is in the lateral direction Width account for the second smoke deflector (22) in the lateral direction width 0.5~0.8.