CN209165498U - 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, smoke deflector is equipped in the front side of exhaust fume collecting hood, smoke deflector gradually tilts backwards from top to bottom under air inlet closed state, and smoke deflector includes two piece of first smoke deflector for being located at the left and right sides and the second smoke deflector between two piece of first smoke deflector；Around the horizontal axis deflection of upper part to form the first air inlet between the lower part of the first smoke deflector and exhaust fume collecting hood, the second smoke deflector, horizontal axis of second smoke deflector around its underpart deflects to form the second air inlet between the top of the second smoke deflector and exhaust fume collecting hood, the first smoke deflector two piece of first smoke deflector.Second air inlet wind-force close from blower is powerful, and the first air inlet plays the role of anti-race cigarette, and multiple air inlets cooperate reasonable distribution negative pressure, improves rectification effect；And the formation of multiple air inlets avoids the compressing to blower, can sufficiently discharge fan performance, maximum quantity of wind increases, and reduces fan noise.

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, and cannot adjust air inlet according to the service condition of dual-range-head；In addition, if smoke deflector is big flat Face can oppress fan performance, lose more air quantity, and noise is big, poor for the capture of the oil smoke of fast speed, easily race 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 multiple air inlets formed between smoke deflector cooperate not only to carry out water conservancy diversion sucking to oil smoke but also can prevent the suction of fumes escaping Kitchen ventilator.

Technical solution adopted by the utility model to solve the above technical problems is as follows:

A kind of range hood, the exhaust fume collecting hood including being equipped with air inlet, being equipped in the front side of the exhaust fume collecting hood can be in driving machine The smoke deflector for deflecting under structure driving with respect to exhaust fume collecting hood and opening and closing air inlet, the smoke deflector is under air inlet closed state from upper It is gradually tilted backwards under and, the smoke deflector includes being located at two piece of first smoke deflector of the left and right sides and being located at two pieces the The second smoke deflector between one smoke deflector；

It is characterized by: two pieces of first smoke deflectors are around the horizontal axis deflection of upper part in the first smoke deflector Lower part and exhaust fume collecting hood, the second smoke deflector between form the first air inlet, horizontal axis of second smoke deflector around its underpart Deflection between the top of the second smoke deflector and exhaust fume collecting hood, the first smoke deflector so that form the second air inlet.

For the formation convenient for the first air inlet, it is preferable that first air inlet is as described in the driving mechanism driving First smoke deflector is deflected and is formed.

For the formation convenient for the second air inlet, it is preferable that second air inlet is as described in the driving mechanism driving Second smoke deflector is deflected and is formed.

To prevent the first smoke deflector and the second smoke deflector from shifting in deflection process, and influence to form the first air inlet With the second air inlet, matching, which is provided with, between the top of the exhaust fume collecting hood and the top of the first smoke deflector makes the two rotation connection First connection component, matching, which is provided with, between the lower part of the exhaust fume collecting hood and the lower part of the second smoke deflector makes the two rotation connection Second connection component.First connection component plays position-limiting action, the second connection component pair to the first smoke deflector in deflection process Second smoke deflector plays position-limiting action in deflection process, to guarantee that the first smoke deflector and the second smoke deflector deflect scheduled angle Degree.

First connection component can have a variety of structures form, it is preferable that first connection component includes first Frame and the first connector, the first support is equipped at left and right sides of the exhaust fume collecting hood, and first connector is set to first The upper side edge of the back of smoke deflector and neighbouring first smoke deflector is arranged, the first support rotation of first connector and respective side Connection, and first connector is rotated around the trunnion axis of first support.First connecting component structure is simple.

Second connection component can have a variety of structures form, it is preferable that second connection component includes second Frame and the second connector, the second support are set on exhaust fume collecting hood, and second connector is set to the back of the second smoke deflector simultaneously The lower side of neighbouring second smoke deflector is arranged, second connector and second support rotation connection, and second connector Trunnion axis around second support rotates.Second connecting component structure is simple.

The driving mechanism can have a variety of structures form, it is preferable that the driving mechanism be located at the first connection component and Between second connection component, which 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 first smoke deflector driving.In this way, being arranged without each smoke deflector A set of driving device, i.e., three sets of driving devices that no setting is required, it is few to be related to component, at low cost.

The driving mechanism can have a variety of structures form, it is preferable that the driving device includes motor and and motor Output end connection for drive the transmission mechanism of deflection before and after the first smoke deflector, the power output end of the transmission mechanism and the One smoke deflector is connected.

The transmission mechanism can have a variety of structures form, it is preferable that the transmission mechanism includes screw rod, connector and pushes away Bar, the screw rod are driven by motor and extend along the longitudinal direction, and the connector is threadedly connected on screw rod, and the push rod is before Rear direction extends, and first end is connected with connector, is provided between second end and the first smoke deflector so that the two rotation connects It connects and to the guide frame of the first smoke deflector guiding.The transmission mechanism structure is simple, and movement is simple and reliable, pushes first to lead cigarette Deflection before and after plate.

The guide frame can have a variety of structures form, it is preferable that the guide frame includes link block, first leads Slot, the first installation part, the first sliding shoe, the link block are set to the second end of push rod, and first guide groove is set on link block And first guide groove vertically extends, first installation part be set to the first smoke deflector back and with the first sliding shoe First end rotation connection, the second end of first sliding shoe are slidably plugged in the first guide groove.So pushed forward in push rod When link block, the first sliding shoe realizes that the front and back of the first smoke deflector is deflected along the first guide groove upward sliding, first leads at this time Place plane tilts backwards place plane cigarette plate from top to bottom in the off state relatively in the on-state；Push rod backward When pulling link block, then the motion process of the first smoke deflector is opposite.

The linkage mechanism can have a variety of structures form, it is preferable that the linkage mechanism includes the second guide groove, the second peace Piece installing and the second sliding shoe, second guide groove are set on link block, and the extending direction of second guide groove and the first guide groove Extending direction is parallel, and second installation part, which is set to the back of the second smoke deflector and rotates with the first end of the second sliding shoe, to be connected It connects, the second end of the second sliding shoe is slidably plugged in the second guide groove, and the first installation part and the second installation part are adjacent respectively Nearly first smoke deflector and the second smoke deflector it is adjacent two sides setting.Connect because driving mechanism is set to the first connection component and second Between connected components, therefore the direction of motion of the first sliding shoe and the second sliding shoe is always on the contrary, to realize the first smoke deflector direction When first support deflects, the second smoke deflector is deflected towards second support.

In order to keep the rotation angle of the first smoke deflector and the second smoke deflector as identical as possible, to make three pieces of smoke deflector cooperations The first air inlet and the second air inlet formed leads that cigarette effect is best, the vertical range of second end of the first support away from push rod The ratio of the vertical range d2 of d1 and first support away from second support is same as the vertical range of second end of the second support away from push rod The ratio of vertical range d4 of the upper side edge of d3 and exhaust fume collecting hood away from second support.

It is best that cigarette effect is led for the first air inlet for further cooperatively forming three pieces of smoke deflectors and the second air inlet, it is described The distance D1 of upper side edge of first connector away from the first smoke deflector is at a distance from lower side of first connector away from the first smoke deflector The ratio between D2 is 3:7~1:1.If ratio is less than 3:7, after the deflection of the first smoke deflector, the smoking of the first smoke deflector top two sides is opened It makes a slip of the tongue small, is unfavorable for smoking effect；If ratio is greater than 1:1, the first smoke deflector lower opening amplitude is too small, smokes as auxiliary Mouthful, effect is unobvious.

To make range hood appearance neat appearance, second smoke deflector and two first smoke deflectors are in off position It is in same plane down, and covers the front side of the plane where air inlet.Such smoke deflector can not only be made in the off state For the panel of range hood, also neat appearance.

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.

It liquidates to prevent from entering the wind contrary two strands of air-flows generation, the central part of second smoke deflector is recessed backward Concave portion is formed, and the female portion has the roof of both left side wall and right side wall and connection, and the left side wall is certainly Forward-backward algorithm right bank, the right side wall are tilted to the left from front to back.In this way, left side wall and right side wall carry out the air-flow of entrance Airflow smooth is imported the air inlet on exhaust fume collecting hood by water conservancy diversion, and avoiding two sidewinds from liquidating causes air-flow smooth cannot suck and make The problem of at 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.

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, the second air inlet is remote with a distance from blower, and negative pressure value is lower.When the first smoke deflector width is greater than Second 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, wind Machine performance cannot be released completely, influence maximum quantity of wind, increase noise.

To improve diversion effect, first smoke deflector in the on-state closing with respect to the first smoke deflector by place plane Plane has angle where under state, which is 8 °~12 °；Place plane is opposite in the on-state for second smoke deflector Place plane has angle to first smoke deflector in the off state, which is 8 °~12 °.If angle is less than 8 °, fan performance It can suffer oppression, air quantity is less than normal, and noise is excessive.If angle is greater than 12 °, rectification effect is deteriorated, and the second smoke deflector is too greatly inclined, and influences Diversion effect, and the first smoke deflector is easy to interfere with exhaust fume collecting hood, also unsightly.

Compared with prior art, the advantages of the utility model: 1, the utility model by by smoke deflector be set as three pieces and Energy front and back deflection, the deflection of the first smoke deflector and the second smoke deflector is contrary, thus lower part and collection in the first smoke deflector Form the first air inlet between petticoat pipe, the second smoke deflector, second smoke deflector around its underpart horizontal axis deflection to The second air inlet, the second air inlet wind-force close from blower are formed between the top of second smoke deflector and exhaust fume collecting hood, the first smoke deflector Powerful, the first air inlet plays the role of anti-race cigarette, and multiple air inlet (i.e. the first air inlet and the second air inlet) cooperations are reasonable Negative pressure is distributed, rectification effect is improved；And the formation of multiple air inlets (i.e. the first air inlet and the second air inlet), avoids pair The compressing of blower can sufficiently discharge fan performance, and maximum quantity of wind increases, and improve smoking effect, and reduce fan noise；2, In terms of the side-looking direction of range hood (user oriented is main view direction), three pieces of smoke deflectors form cross structure, at oil smoke When smoke deflector lower part, the second smoke deflector mainly plays water conservancy diversion, and cigarette is quickly introduced the first air inlet, oil smoke ascension extremely When top, the first smoke deflector mainly plays water conservancy diversion, and cigarette is imported the second air inlet.The structure that mutual conductance is mutually inhaled in this way mentions significantly Rise smoking effect；And the reason of running cigarette is come first is that being difficult to be pulled after oil smoke offset direction, under the first smoke deflector is mainly Into cigarette, such smoking regime can enable the oil smoke for deviateing vertical direction diffusion at the beginning pass through first below the first smoke deflector in portion Air inlet is inhaled into blower；3, concave portion is provided on the second smoke deflector, the left side wall and right side wall of concave portion have air-flow Guide functions avoid two strands of contrary air-flows of air inlet and liquidate, and air-flow is not only caused smooth cannot to enter air inlet, also produce The problem of raw 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 structural schematic diagram of the smoke deflector of Fig. 3；

Fig. 5 is the smoke deflector of Fig. 4 and the assembling schematic diagram of driving mechanism；

Fig. 6 is the structural schematic diagram of the driving mechanism on the first smoke deflector of left side of Fig. 5；

Fig. 7 is the assembling schematic diagram of exhaust fume collecting hood and driving mechanism；

Fig. 8 is the structural schematic diagram for removing smoke deflector of Fig. 3；

Fig. 9 is the structural schematic diagram (smoke deflector is in close state) of the utility model embodiment.

Specific embodiment

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

As shown in figure 1-9, 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.

Be equipped in the front side of exhaust fume collecting hood 1 to make air inlet 11 open and close relative to the movement of exhaust fume collecting hood 1 under the action of the drive mechanism Smoke deflector 2, smoke deflector 2 include be located at the left and right sides two the first smoke deflectors 21 and be located at two the first smoke deflectors The second smoke deflector 22 between 21, the second smoke deflector 22 and two the first smoke deflectors 21 are in same plane in the off state, And gradually tilt backwards from top to bottom, and cover in the front side of 11 place plane of air inlet, such smoke deflector 2 is in off position Under can also be used as the panel of range hood.And between smoke deflector 2 has centainly between exhaust fume collecting hood 1 in the lateral direction Away from the spacing is not less than 3mm, to prevent smoke deflector 2 from generating interference between exhaust fume collecting hood 1 when moving.

When opening air inlet 11, two piece of first smoke deflector 21 first around the horizontal axis deflection of upper part to lead The first air inlet 24 is formed between the lower part of cigarette plate 21 and exhaust fume collecting hood 1, the second smoke deflector 22, the second smoke deflector 22 is around its underpart Horizontal axis deflection is to form the second air inlet between the top of the second smoke deflector 22 and exhaust fume collecting hood 1, the first smoke deflector 21 23。

First air inlet 24 can be driven the deflection of the first smoke deflector 21 by the driving mechanism and be formed, the second air inlet 23 can be driven by the driving mechanism deflection of the second smoke deflector 22 and be formed.That is the first smoke deflector 21 and the second smoke deflector 22 It is deflected respectively by driving mechanism driving or the first smoke deflector 21 is as active plate, the second smoke deflector 22 leads cigarette as with first The follower plate or the second smoke deflector 22 that plate 21 links are used as active plate, and the first smoke deflector 21 links as with the second smoke deflector 22 Follower plate.

As illustrated in figures 3-6, matching to be provided between the top of exhaust fume collecting hood 1 and the top of the first smoke deflector 21 turns the two First connection component of dynamic connection, matching, which is provided with, between the lower part of exhaust fume collecting hood 1 and the lower part of the second smoke deflector 22 turns the two Second connection component of dynamic connection, to realize that two piece of first smoke deflector 21 is deflected around the horizontal axis of upper part, second is led Horizontal axis of the cigarette plate 22 around its underpart deflects.

Wherein the first connection component includes first support 12 and the first connector 211, and the left and right sides of exhaust fume collecting hood 1 is equipped with First support 12, the first connector 211 is set to the back of the first smoke deflector 21 and the upper side edge of neighbouring first smoke deflector 21 is arranged, The trunnion axis 121 of the first support 12 of first connector 211 and respective side is rotatablely connected.

Wherein the second connection component includes second support 13 and the second connector 221, and second support 13 is set to exhaust fume collecting hood 1 On, the second connector 221 is set to the back of the second smoke deflector 22 and the lower side of neighbouring second smoke deflector 22 is arranged, the second connection Part 221 and the trunnion axis of second support 13 131 are rotatablely connected.

As shown in Fig. 5~7, in the present embodiment, the first smoke deflector 21 is used as active plate, and the second smoke deflector 22 is as with first The follower plate that smoke deflector 21 links.Driving mechanism includes driving device 3 and is arranged in the of the second smoke deflector 22 and its linkage Linkage mechanism 4 between one smoke deflector 21, wherein driving device 3 includes motor 31 and is used for what 31 output end of motor was connect The transmission mechanism deflected before and after the first smoke deflector 21 is driven, the power output end of transmission mechanism is connected with the first smoke deflector 21.Collection The back fixation of petticoat pipe 1 is equipped with a fixed frame 39, and motor 31 is set on the fixed frame 39.

Wherein transmission mechanism includes screw rod 32, connector 33 and push rod 34, and screw rod 32 is driven by motor 31 and along front and back To extension, connector 33 is threadedly connected on screw rod 32, and push rod 34 extends along the longitudinal direction, and the first end and connection of push rod 34 Part 33 is connected, and second end is provided with across fixed frame 39 and the first smoke deflector 21 so that the two rotation connection and to the The guide frame of one smoke deflector 21 guiding.

Wherein guide frame includes link block 35, the first guide groove 36, the first installation part 37, the first sliding shoe 38, link block 35 are set to the second end of push rod 34, and the first guide groove 36 is set on link block 35 and first guide groove 36 vertically extends, the One installation part 37 is set to the back of the first smoke deflector 21 and is rotatablely connected with the first end of the first sliding shoe 38, the first sliding shoe 38 Second end be slidably plugged in the first guide groove 36.

Wherein linkage mechanism 4 includes the second guide groove 41, the second installation part 42 and the second sliding shoe 43, and the second guide groove 41 is set In on link block 35, and the extending direction of second guide groove 41 is parallel with the extending direction of the first guide groove 36, the second installation part 42 Set on the second smoke deflector 22 back and be rotatablely connected with the first end of the second sliding shoe 43, the second end of the second sliding shoe 43 is sliding It is dynamic to be inserted in the second guide groove 41, and the first installation part 37 and the second installation part 42 are respectively adjacent to the first smoke deflector 21 and second and lead The adjacent two sides setting of cigarette plate 22.In addition, along the first smoke deflector 21 or the extending direction up and down of the second smoke deflector 22, the first peace Piece installing 37 and the second installation part 42 are set between the first connector 211 and the second connector 221.

So when push rod 34 pushes link block 35 forward, the first sliding shoe 38 is along 36 upward sliding of the first guide groove to reality The front and back deflection of existing first smoke deflector 21, at this time the first smoke deflector 21 in the on-state where plane relatively in the off state Place plane tilts backwards from top to bottom；When push rod 34 pulls back link block 35, then the motion process of the first smoke deflector 21 On the contrary.And because driving mechanism is set between the first connection component and the second connection component (i.e. the first installation part 37 and the second peace Piece installing 42 is set between the first connector 211 and the second connector 221), therefore the first sliding shoe 38 and the second sliding shoe 43 The direction of motion is always on the contrary, when to realize that the first smoke deflector 21 is deflected towards first support 12, and the second smoke deflector 22 is towards the The deflection of two brackets 13.

The deflection angle of first smoke deflector 21 and the second smoke deflector 22 is preferably as follows: the first smoke deflector 21 is in the on-state With respect to the first smoke deflector 21, place plane has angle to place plane in the off state, which is 8 °~12 °, preferably 10°；With respect to the first smoke deflector 21, place plane has place plane second smoke deflector 22 in the off state in the on-state Angle, the angle are 8 °~12 °, preferably 10 °.If fan performance can suffer oppression, and air quantity is less than normal, noise because angle is less than 8 ° It is excessive.If angle is greater than 12 °, rectification effect is deteriorated, and the second smoke deflector 22 is too greatly inclined, and influences diversion effect, and first leads cigarette Plate 21 is easy to interfere with exhaust fume collecting hood 1, also unsightly.

From the foregoing, it will be observed that the front and back deflection under the action of the drive mechanism of the first smoke deflector 21 and the second smoke deflector 22, thus the Between the top and exhaust fume collecting hood 1 of two smoke deflectors 22, the top of the second smoke deflector 22 lead cigarette with adjacent first in the lateral direction The second air inlet 23 is respectively formed between plate 21, second air inlet 23 is close from blower, and wind-force is powerful, can rapidly smoke；First leads The lower part of cigarette plate 21 is in the lateral direction between the second adjacent smoke deflector 22, the lower part of the first smoke deflector 21 and exhaust fume collecting hood 1 Between be respectively formed the first air inlet 24, which prevents oil smoke from spreading.

As shown in Figure 1, 2, in terms of the side-looking direction of range hood (user oriented direction is main view direction), three pieces are led cigarette Plate forms cross structure, and when oil smoke is in lower part, the second smoke deflector 22 mainly plays water conservancy diversion, and cigarette is quickly introduced first Air inlet 24, at oil smoke ascension to top, the first smoke deflector 21 mainly plays water conservancy diversion, and oil smoke is imported the second air inlet 23, the structure that such mutual conductance is mutually inhaled greatly promotes smoking effect.

In addition, as shown in Fig. 4,8, the vertical range d1 and first support 12 of second end of the first support 12 away from push rod 34 The ratio of vertical range d2 away from second support 13 is same as the vertical range d3 and collection of second end of the second support 13 away from push rod 34 The ratio of vertical range d4 of the upper side edge of petticoat pipe 1 away from second support 13, so makes the first smoke deflector 21 and the second smoke deflector 22 Deflection angle it is as identical as possible.And the distance D1 of upper side edge of first connector 211 away from the first smoke deflector 21 and first connects The ratio between the distance D2 of lower side of fitting 211 away from the first smoke deflector 21 is 3:7~1:1, preferably 5:7.If ratio is less than 3:7, After the deflection of first smoke deflector 21, the too small openings of 21 top two sides of the first smoke deflector smoking are unfavorable for smoking effect；If ratio Greater than 1:1,21 lower opening amplitude of the first smoke deflector is too small, and as auxiliary smoking port, effect is unobvious.

In addition, the width of the first smoke deflector 21 in the lateral direction accounts for the second smoke deflector 22 width in the lateral direction 0.5~0.8.When 21 width of the first smoke deflector 50% less than 22 width of the second smoke deflector, the second smoke deflector 22 is wide, oil suction When smoke machine works, the second air inlet 23 is remote with a distance from blower, and negative pressure value is lower.Cigarette is led when 21 width of the first smoke deflector is greater than second 22 width of plate 80% when, when range hood works, the deflection of the first smoke deflector 21 can block air inlet 11 on exhaust fume collecting hood 1, wind Machine performance cannot be released completely, influence maximum quantity of wind, increase noise.

As shown in Fig. 1~5, the central part of the second smoke deflector 22 is recessed backward forms concave portion 25, and concave portion 25 has Positioned at the left side wall 251 of the left and right sides, right side wall 252 and the roof 253 for connecting left side wall 251 and right side wall 252, and it is left Side wall 251 is tilted to the right from front to back, and right side wall 252 is tilted to the left from front to back, the folder between left side wall 251 and roof 253 Angle is 7 °, and the angle between right side wall 252 and roof 253 is 7 °.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.

Claims (16)

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 being deflected under driving mechanism driving with respect to exhaust fume collecting hood (1) and opening and closing air inlet (11), the smoke deflector (2) It is gradually tilted backwards from top to bottom under air inlet (11) closed state, the smoke deflector (2) includes being located at the left and right sides Two piece of first smoke deflector (21) and the second smoke deflector (22) for being located between two piece of first smoke deflector (21)；

It is characterized by: two pieces of first smoke deflectors (21) are around the horizontal axis deflection of upper part in the first smoke deflector (21) it is formed the first air inlet (24) between lower part and exhaust fume collecting hood (1), the second smoke deflector (22), second smoke deflector (22) Around its underpart horizontal axis deflection to the second smoke deflector (22) top and exhaust fume collecting hood (1), the first smoke deflector (21) it Between form the second air inlet (23).

2. range hood according to claim 1, it is characterised in that: first air inlet (24) is by the driving machine Structure drives the first smoke deflector (21) deflection and is formed.

3. range hood according to claim 2, it is characterised in that: second air inlet (23) is by the driving machine Structure drives the second smoke deflector (22) deflection and is formed.

4. range hood according to claim 1, it is characterised in that: the top of the exhaust fume collecting hood (1) and the first smoke deflector (21) matching is provided with the first connection component for both making to be rotatablely connected between top, the lower part of the exhaust fume collecting hood (1) and the Matching is provided with the second connection component for being rotatablely connected the two between the lower part of two smoke deflectors (22).

5. range hood according to claim 4, it is characterised in that: first connection component includes first support (12) It with the first connector (211), is equipped with the first support (12) at left and right sides of the exhaust fume collecting hood (1), first connection Part (211) is set to the back of the first smoke deflector (21) and the upper side edge of neighbouring first smoke deflector (21) is arranged, first connection The rotation connection of the first support (12) of part (211) and respective side, and first connector (211) is around the water of first support (12) Flat axis (121) rotation.

6. range hood according to claim 4, it is characterised in that: second connection component includes second support (13) With the second connector (221), the second support (13) is set on exhaust fume collecting hood (1), and second connector (221) is set to second The lower side of the back of smoke deflector (22) and neighbouring second smoke deflector (22) is arranged, second connector (221) and second Frame (13) rotation connection, and trunnion axis (131) of second connector (221) around second support (13) rotates.

7. range hood according to claim 4, it is characterised in that: the driving mechanism is located at the first connection component and Between two connection components, which includes driving device (3) and setting the of the second smoke deflector (22) and its linkage Linkage mechanism (4) between one smoke deflector (21), the driving device (3) are connected with first smoke deflector (21) driving.

8. 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 first smoke deflector (21) front and back to deflect being connect with motor (31) output end, the transmission mechanism Power output end is connected with the first smoke deflector (21).

9. range hood according to claim 8, it is characterised in that: the transmission mechanism includes screw rod (32), connector (33) it is driven and is extended along the longitudinal direction, connector (33) screw thread by motor (31) with push rod (34), the screw rod (32) It is connected on screw rod (32), the push rod (34) extends along the longitudinal direction, and first end is connected with connector (33), second end It is provided between the first smoke deflector (21) so that the two is rotatablely connected and to the guide frame of the first smoke deflector (21) guiding.

10. range hood according to claim 9, it is characterised in that: the guide frame includes link block (35), first Guide groove (36), the first installation part (37), the first sliding shoe (38), the link block (35) are set to the second end of push rod (34), institute The first guide groove (36) are stated on link block (35) and first guide groove (36) vertically extends, first installation part (37) it is set to the back of the first smoke deflector (21) and is rotatablely connected with the first end of the first sliding shoe (38), first sliding shoe (38) second end is slidably plugged in the first guide groove (36).

11. range hood according to claim 10, it is characterised in that: the linkage mechanism (4) includes the second guide groove (41), the second installation part (42) and the second sliding shoe (43), second guide groove (41) be set to link block (35) on, and this second The extending direction of guide groove (41) is parallel with the extending direction of the first guide groove (36), and second installation part (42) is set to second and leads cigarette The back of plate (22) is simultaneously rotatablely connected with the first end of the second sliding shoe (43), the second end sliding of the second sliding shoe (43) Be inserted in the second guide groove (41), and the first installation part (37) and the second installation part (42) be respectively adjacent to the first smoke deflector (21) and The adjacent two sides setting of second smoke deflector (22).

12. range hood according to claim 1, it is characterised in that: second smoke deflector (22) and two described One smoke deflector (21) is in same plane in the off state, and covers in the front side of plane where air inlet (11).

13. 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).

14. range hood according to claim 1, it is characterised in that: the central part of second smoke deflector (22) to Recess is formed concave portion (25) afterwards, 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.

15. range hood according to claim 14, it is characterised in that: between the left side wall (251) and roof (253) Angle be 5 °~10 °, the angle between the right side wall (252) and roof (253) is 5 °~10 °.

16. 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.