CN218884058U - Smoke collecting hood assembly and range hood - Google Patents

Abstract

The utility model relates to a kitchen appliance technical field especially relates to a collection petticoat pipe subassembly and range hood. The smoke collecting hood assembly comprises an upper baffle, a smoke collecting plate and a lower baffle, the smoke collecting plate and the upper baffle are connected through a connecting rod assembly, and the lower baffle and the upper baffle are connected through a linkage assembly; the exhaust fume collecting hood assembly has a closed state and an open state, and the upper end of the lower baffle is always abutted against the inner wall of the upper baffle in the process of switching the exhaust fume collecting hood assembly from the closed state to the open state. Thereby the sealing performance between the upper baffle and the lower baffle is ensured, and further the sealing performance of the range hood is ensured.

Description

Smoke collecting hood assembly and range hood

Technical Field

The utility model relates to a kitchen appliance technical field especially relates to a collection petticoat pipe subassembly and range hood.

Background

The range hood is an electrical appliance widely used in kitchens and is used for exhausting oil smoke generated in the cooking process of a stove. The range hood has a smoke collecting hood assembly, the smoke collecting hood assembly is used for opening and closing an exhaust inlet of the range hood, the smoke collecting hood assembly generally comprises a plurality of baffles, and the plurality of baffles are linked to realize opening and closing. In the prior art, a gap inevitably exists between the baffle plates, so that the sealing performance of the range hood cannot be ensured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collection petticoat pipe subassembly and range hood can guarantee range hood's closure.

To achieve the purpose, the utility model adopts the following technical proposal:

a smoke collecting hood assembly comprises an upper baffle, a smoke collecting plate and a lower baffle, wherein the smoke collecting plate is connected with the upper baffle through a connecting rod assembly, and the lower baffle is connected with the upper baffle through a linkage assembly;

the exhaust fume collecting hood assembly is in a closed state and an open state, the exhaust fume collecting hood assembly is switched to the open state in the process, and the upper end of the lower baffle is always abutted to the inner wall of the upper baffle.

Optionally, when the fume collecting hood assembly is in the closed state, an upper portion of the lower baffle overlaps a lower portion of the upper baffle.

Optionally, when the fume collecting hood assembly is in the open state, an upper end of the lower baffle abuts a lower end of the upper baffle.

Optionally, the upper end of overhead gage has the pivot of going up, the lower extreme of baffle has down the pivot down, works as collection petticoat pipe subassembly is in during the open mode, the overhead gage with hold together the cigarette board and wind go up the pivot and open, just hold together the opening angle of cigarette board and be greater than the opening angle of overhead gage, the baffle winds down the pivot is opened, hold together the cigarette board with form down between the baffle and hold together the cigarette district.

Optionally, the linkage assembly comprises a sliding rail and a linkage support, the sliding rail is arranged on the upper baffle, one end of the linkage support is slidably connected to the sliding rail, and the other end of the linkage support is hinged to the lower baffle.

Optionally, the connecting rod assembly comprises a first fixing support, a first connecting rod a, a first connecting rod b, a second fixing support, a second connecting rod a and a second connecting rod b, the first fixing support and the second fixing support are fixed to the upper baffle and the smoke collecting plate respectively, one end of the first connecting rod a is hinged to the first fixing support, the other end of the first connecting rod a is hinged to one end of the first connecting rod b, and the other end of the first connecting rod b is hinged to the second fixing support; one end of the second connecting rod a is hinged with the second fixed support, the other end of the second connecting rod a is hinged with one end of the second connecting rod b, the other end of the second connecting rod b is hinged with the first fixed support, and the first connecting rod b is hinged with the second connecting rod b.

Optionally, a through hole penetrating along the thickness direction of the second connecting rod b is formed in the second connecting rod b, the first connecting rod b is crossed and arranged in the through hole, and the second connecting rod b is hinged to the first connecting rod b at the crossed position.

The range hood comprises a box body and the smoke collecting hood assembly of any one of the previous schemes, wherein the upper end of an upper baffle is hinged with the upper end of the box body, and the lower end of a lower baffle is hinged with the lower end of the box body.

The utility model has the advantages that:

the utility model provides a collection petticoat pipe subassembly, collection petticoat pipe subassembly is switching to the in-process of open mode by closed state, the upper end of lower baffle all the time with the inner wall butt of last baffle to guaranteed the leakproofness between last baffle and the lower baffle, and then guaranteed range hood's leakproofness.

Drawings

Fig. 1 is a first schematic structural diagram of a range hood provided in an embodiment of the present invention in a closed state;

fig. 2 is a first schematic structural diagram of the range hood provided by the embodiment of the present invention in an open state;

fig. 3 is a second schematic structural diagram of the range hood provided by the embodiment of the present invention in a closed state;

fig. 4 is a second schematic structural diagram of the range hood according to the embodiment of the present invention in an open state;

fig. 5 is a schematic structural view of a linkage assembly, an upper baffle and a lower baffle in accordance with an embodiment of the present invention when not opened;

fig. 6 is a schematic structural view of the linkage assembly, the upper baffle and the lower baffle when opened according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a linkage assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a slide rail according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a reinforcing rib structure according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a side plate and an inclined plate according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a drive member and a link assembly according to an embodiment of the present invention;

fig. 12 is a first schematic structural view of a connecting rod assembly according to an embodiment of the present invention;

fig. 13 is a second schematic structural view of a connecting rod assembly according to an embodiment of the present invention;

fig. 14 is a third schematic structural view of a connecting rod assembly according to an embodiment of the present invention;

fig. 15 is a fourth schematic structural view of a connecting rod assembly according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of another view angle of the range hood according to the embodiment of the present invention in the closed state;

fig. 17 is a sectional view of the range hood provided by the embodiment of the present invention;

fig. 18 is a schematic structural view of an oil cup according to an embodiment of the present invention;

fig. 19 is a partial enlarged view at B in fig. 18;

fig. 20 is a partial enlarged view at a in fig. 17.

In the figure:

10. a box body; 11. an inclined plate;

20. a fume collecting hood assembly; 21. an upper baffle plate; 211. an upper rotating shaft; 212. a side plate; 22. a cigarette collecting plate; 23. a lower baffle plate; 231. a lower rotating shaft; 232. avoiding holes; 24. an oil screen;

30. a linkage assembly; 31. a slide rail; 311. a fixed mount; 312. a ball support; 3121. a first limit boss; 313. a ball bearing; 314. a slider; 3141. a second limit boss; 32. a linkage bracket; 321. a flat plate portion; 322. an arc-shaped frame; 33. a linkage pin;

40. a connecting rod assembly; 41. a first fixed bracket; 411. a first mounting hole; 412. a first hinge shaft; 413. a second hinge shaft; 414. a first limit surface; 415. a second limiting surface; 42. a second fixed bracket; 421. a second mounting hole; 422. a third hinge shaft; 423. a fourth hinge shaft; 43. a first link a; 44. a first link b; 45. a second link a; 46. a second link b; 461. a fifth hinge shaft; 462. a sixth hinge shaft;

50. a drive member;

60. an oil cup; 61. an oil cup body; 62. a buckle assembly; 621. a button; 622. a first return spring; 623. a first drive lever; 624. a second transmission rod; 625. buckling; 6251. a hook portion; 626. a second return spring;

70. an impeller;

80. an oil collecting tray;

90. a gravity sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 20, an embodiment of the present invention provides a range hood, which includes a box 10, a smoke collecting hood assembly 20, a connecting rod assembly 40, a linkage assembly 30 and a driving member 50, wherein an air suction opening is arranged at the front side of the box 10; the smoke collecting hood assembly 20 is used for opening and closing the air suction opening, the smoke collecting hood assembly 20 comprises an upper baffle plate 21, a smoke collecting plate 22 and a lower baffle plate 23, the upper end of the upper baffle plate 21 is hinged with the upper end of the box body 10 through an upper rotating shaft 211, the smoke collecting plate 22 is connected with the upper baffle plate 21 through a connecting rod assembly 40, the lower end of the lower baffle plate 23 is hinged with the lower end of the box body 10 through a lower rotating shaft 231, the lower baffle plate 23 is connected with the upper baffle plate 21 through a linkage assembly 30, and an oil screen 24 is arranged on the lower baffle plate 23; the driving part 50 is in driving connection with one of the connecting rod assemblies 40, the driving part 50 can drive the upper baffle 21 and the smoke collecting plate 22 to rotate through the connecting rod assemblies 40, and the upper baffle 21 can drive the lower baffle 23 to rotate through the linkage assembly 30. The driving piece 50 can drive the smoke collecting hood assembly 20 to switch between a closed state and an open state, referring to fig. 1 and 3, when the smoke collecting hood assembly 20 is in the closed state, the upper baffle 21, the smoke collecting plate 22 and the lower baffle 23 are all in a vertical state, the upper baffle 21 and the smoke collecting plate 22 are arranged side by side in the vertical direction, and the lower baffle 23 is located on the inner sides of the upper baffle 21 and the smoke collecting plate 22; referring to fig. 2 and 4, when the smoke collecting cover assembly 20 is in an open state, the upper baffle plate 21 and the smoke collecting plate 22 rotate around the upper rotating shaft 211 to open, and the opening angle of the smoke collecting plate 22 is greater than the opening angle of the upper baffle plate 21 (as can be seen from fig. 4, the included angle between the upper baffle plate 21 and the vertical direction is α, and the included angle between the smoke collecting plate 22 and the upper baffle plate 21 is δ), the lower baffle plate 23 rotates around the lower rotating shaft 231 to open by an angle β, and a smoke collecting area is formed between the smoke collecting plate 22 and the lower baffle plate 23. In the present embodiment, the driving member 50 is an electric push rod.

The range hood provided by the embodiment of the utility model adopts the single driving piece 50, combines the connecting rod assembly 40 and the linkage assembly 30, realizes the opening and closing movement of the fume collecting hood assembly 20, and has lower cost; and collection petticoat pipe subassembly 20 is when open mode, and the opening angle that holds together cigarette board 22 is greater than the opening angle of overhead gage 21, and lower baffle 23 also can rotate and open certain angle, so hold together the area of cigarette district by holding together cigarette board 22 and baffle 23 down and be bigger, hold together cigarette effectually, and because the opening angle of overhead gage 21 is less, so can not reduce suction under the sheltering from of overhead gage 21.

Further, with continued reference to fig. 3 and 4, when the smoke collecting hood assembly 20 is in the closed state, the upper portion of the lower baffle 23 overlaps with the lower portion of the upper baffle 21, the upper end of the lower baffle 23 is always in abutment with the inner wall of the upper baffle 21 during switching of the smoke collecting hood assembly 20 from the closed state to the open state, and when the smoke collecting hood assembly 20 is in the open state, the upper end of the lower baffle 23 is in abutment with the lower end of the upper baffle 21. Therefore, the upper baffle plate 21 and the lower baffle plate 23 are always kept in butt joint, and the sealing performance of the smoke collecting hood assembly 20 is ensured.

Referring to fig. 5 to 7, the linkage assembly 30 includes a slide rail 31 and a linkage bracket 32, the slide rail 31 is disposed on the upper baffle 21, one end of the linkage bracket 32 is slidably connected to the slide rail 31, and the other end of the linkage bracket 32 is hinged to the lower baffle 23 through a linkage pin 33. The upper baffle 21 can drive the lower baffle 23 to rotate through the linkage assembly 30. When the upper baffle 21 rotates around the upper rotating shaft 211 hinged with the box body 10 to be opened, the linkage bracket 32 slides downwards along the slide rail 31 under the action of the pulling force of the lower baffle 23, so that the lower baffle 23 rotates around the lower rotating shaft 231 hinged with the box body 10 to be opened along with the upper baffle 21; when the upper baffle 21 is rotated and closed around the upper rotating shaft 211 hinged with the box body 10, the linkage bracket 32 slides upwards along the slide rail 31 under the pushing force of the lower baffle 23, so that the lower baffle 23 is rotated and closed around the lower rotating shaft 231 hinged with the box body 10 along with the upper baffle 21.

In this embodiment, preferably, referring to fig. 8, the slide rail 31 includes a fixed frame 311, a ball support 312, a ball 313 and a slider 314, the ball 313 is disposed on the ball support 312, the ball support 312 can slide relative to the fixed frame 311, the slider 314 can slide relative to the ball support 312, and the linking support 32 is connected to the slider 314. Through the above-mentioned structural arrangement of the slide rail 31, the ball support 312 and the fixed frame 311 and the ball support 312 and the slider 314 slide in a dotted line contact manner, and the friction is small. The fixing frame 311 includes a bottom plate and enclosing plates disposed around the bottom plate, the ball support 312 is in sliding contact with the two enclosing plates distributed along the length direction of the bottom plate through a ball 313, and the two enclosing plates along the width direction of the bottom plate limit the sliding of the ball support 312. In addition, the upper end surface of the ball support 312 is provided with two first limit bosses 3121 at intervals along the sliding direction thereof, the lower end surface of the slider 314 is provided with two second limit bosses 3141 at intervals along the sliding direction thereof, and the two first limit bosses 3121 correspond to the two second limit bosses 3141 one to one so as to limit the movement of the slider 314 in two directions. In the sliding process of the slider 314, when the second limit boss 3141 abuts against the first limit boss 3121, the sliding of the slider 314 is stopped.

The side plates 212 are vertically connected to two sides of the top baffle 21, and generally, the thickness of the side plates 212 is relatively thin, so that the side plates 212 are easily deformed, and in this embodiment, a reinforcing rib structure is added between the top baffle 21 and the side plates 212 to enhance the strength of the side plates 212. In this embodiment, referring to fig. 9, the reinforcing rib structure is composed of two slide rails 31 and a linking bracket 32, the two slide rails 31 are respectively disposed on the upper baffle 21 and the side plate 212, and the linking bracket 32 is simultaneously slidably connected to the two slide rails 31. The two slide rails 31 and the linkage support 32 form a reinforcing rib structure, so that the strength of the upper baffle plate 21 and the side plate 212 can be enhanced, and the problem that the verticality and the stability of the upper baffle plate 21 are difficult to ensure due to the thinness of the side plate 212 is effectively solved; and the reinforcing rib structure is arranged by relying on the linkage assembly 30, other structures do not need to be additionally arranged, and the structure is simple. Optionally, the linkage bracket 32 includes an L-shaped bracket and an arc-shaped bracket 322, the L-shaped bracket includes two flat plate portions 321 vertically connected, the two flat plate portions 321 are respectively connected with the two slide rails 31 in a one-to-one correspondence manner, one end of the arc-shaped bracket 322 is connected to the L-shaped bracket, and the other end of the arc-shaped bracket 322 is hinged to the lower baffle 23 through a linkage pin 33. Preferably, a reinforcing plate is further connected between the two flat plate portions 321 to increase the structural strength of the L-shaped frame. In this embodiment, the number of the reinforcing plates is two, and the two reinforcing plates are respectively located at both ends of the flat plate portion 321. Of course, the rib configuration is exemplary only and not intended to be limiting.

In the present embodiment, preferably, referring to fig. 10, an inclined plate 11 is provided in the box body 10, the inclined plate 11 is provided opposite to the side plate 212, an included angle between the inclined plate 11 and the side plate 212 is θ, and a distance between the inclined plate 11 and the side plate 212 gradually decreases along the opening direction of the upper flap 21. Through the arrangement, a minimum safety clearance can be always kept between the side plate 212 and the box body 10.

Generally, the interval between the cigarette collecting plate 22 and the upper baffle 21 is at least set to be equal to the thickness of the cigarette collecting plate 22, so as to avoid that the cigarette collecting plate 22 does not interfere with the upper baffle 21 in the process of overturning relative to the upper baffle 21. However, in the present embodiment, the link assembly 40 is configured to enable the smoke collecting plate 22 to perform a combined movement of rotation and translation relative to the upper baffle 21, that is, the smoke collecting plate 22 can also translate in a direction away from the upper baffle 21 in addition to being able to turn relative to the upper baffle 21, so that a gap between the upper baffle 21 and the smoke collecting plate 22 can be made small enough, and interference between the smoke collecting plate 22 and the upper baffle 21 can also be avoided. Generally, the thickness of the smoke collecting plate 22 is 4mm, in this embodiment, when the smoke collecting cover assembly 20 is in a closed state, the interval between the lower end of the upper baffle 21 and the upper end of the smoke collecting plate 22 can be less than 4mm, and even can be gapless.

Specifically, referring to fig. 11 and 12, the link assembly 40 includes a first fixing bracket 41, a first link a43, a first link b44, a second fixing bracket 42, a second link a45, and a second link b46, the first fixing bracket 41 and the second fixing bracket 42 are respectively fixed to the upper barrier 21 and the smoke collection plate 22, one end of the first link a43 is hinged to the first fixing bracket 41 through a first hinge shaft 412, the other end of the first link a43 is hinged to one end of the first link b44, the other end of the first link b44 is hinged to the second fixing bracket 42 through a third hinge shaft 422, one end of the second link a45 is hinged to the second fixing bracket 42 through a fourth hinge 423, the other end of the second link a45 is hinged to one end of the second link b46, the other end of the second link b46 is hinged to the first fixing bracket 41 through a second hinge shaft 413, and the first link b44 is hinged to the second link b46 through a fifth hinge shaft 461. The driving end of the driving member 50 is hinged to the second link b46 through a sixth hinge shaft 462. In this embodiment, the lower baffle 23 is provided with an avoiding hole 232, and the avoiding hole 232 is used for avoiding the second fixing bracket 42 and a rod connected to the second fixing bracket 42.

Referring to fig. 13 to 15, the link assembly 40 forms two double rocker mechanisms, namely, a first double rocker mechanism (refer to fig. 13) illustrated by a line L1, a line L2, and a line L3, and a second double rocker mechanism (refer to fig. 14) illustrated by a line L4, a line L5, and a line L6. As shown in fig. 15, the driving member 50 drives the second link b46, which corresponds to the portion represented by the straight line L5 driving the second double rocker mechanism, and at this time, the portions represented by the straight lines L4 and L6 swing as the driven portion, so as to drive the fourth hinge shaft 423 of the second fixing bracket 42 to turn around the second hinge shaft 413 of the first fixing bracket 41; meanwhile, the second connecting rod b46 can drive the first connecting rod b44 to translate, that is, the portion represented by the straight line L2 translates, and further the portions represented by the straight lines L1 and L3 swing, so as to drive the third hinge shaft 422 of the second fixing bracket 42 to turn around the first hinge shaft 412 of the first fixing bracket 41; in addition, since the portions represented by the straight lines L2 and L3 are actually the first connecting rods b44, the first connecting rods b44 perform a combined turning and translation motion, so that the second fixing brackets 42 perform a combined turning and translation motion, and the second fixing brackets 42 are disposed on the cigarette collecting plate 22, so that the cigarette collecting plate 22 can perform a combined turning and translation motion relative to the upper baffle 21.

In this embodiment, with reference to fig. 13 to fig. 15, a first limiting surface 414 and a second limiting surface 415 are respectively disposed on two sides of the first connecting rod a43 of the first fixing bracket 41, and the first limiting surface 414 and the second limiting surface 415 are respectively used for limiting an angle of the first connecting rod a43 rotating towards two sides, so as to limit a turning angle of the cigarette collecting plate 22. The connecting rod assembly 40 is provided with the limiting surface, so that a limiting mechanism does not need to be additionally arranged, the structure is simplified, and the cost is saved; and the problems of large friction and dead points during connection limit caused by additionally arranging a limit mechanism are also avoided. Of course, the positions of the first limiting surface 414 and the second limiting surface 415 are not limited to this, and the first limiting surface 414 and the second limiting surface 415 may be respectively disposed on two sides of the second connecting rod b46 of the first fixing bracket 41, and at this time, the first limiting surface 414 and the second limiting surface 415 are respectively used for limiting the angle of the second connecting rod b46 rotating towards two sides; or the second fixing bracket 42 is provided with a first limiting surface 414 and a second limiting surface 415 on two sides of the first connecting rod b44, and at this time, the first limiting surface 414 and the second limiting surface 415 are used for limiting the angle of the first connecting rod b44 rotating towards two sides; or the second fixing bracket 42 is provided with a first limiting surface 414 and a second limiting surface 415 on two sides of the second connecting rod a45, and at this time, the first limiting surface 414 and the second limiting surface 415 are used for limiting the angle of the second connecting rod a45 rotating towards two sides; or one side of any one of the first connecting rod a43, the first connecting rod b44, the second connecting rod a45 or the second connecting rod b46 may be provided with a first limiting surface 414, and the other side of the other one may be provided with a second limiting surface 415, which may meet the requirements, and may be specifically set as required.

Preferably, referring to fig. 12, the second link b46 is provided with a through hole penetrating along the thickness direction thereof, the first link b44 is crosswise arranged in the through hole, and the second link b46 is hinged with the first link b44 at the intersection. In addition, one ends of the first link a43 and the second link b46 hinged to the first fixing bracket 41 are interposed between both side walls of the first fixing bracket 41, and one ends of the second link a45 and the first link b44 hinged to the second fixing bracket 42 are interposed between both side walls of the second fixing bracket 42. Through the arrangement, the structure of the connecting rod assembly 40 is more compact, the shaking in the movement is reduced, and the stability and the reliability of the whole connecting rod assembly 40 are guaranteed.

In addition, the link assembly 40 can be used as a single module, the first fixing bracket 41 is provided with a first mounting hole 411, the second fixing bracket 42 is provided with a second mounting hole 421, and the first mounting hole 411 and the second mounting hole 421 are arranged so that the link assembly 40 module can be matched with a corresponding mounting hole arranged on the mounting panel, in this embodiment, the first fixing bracket 41 is mounted on the upper baffle 21 through the first mounting hole 411, and the second fixing bracket 42 is mounted on the smoke collecting plate 22 through the second mounting hole 421. Through the arrangement, simplification and reliability of installation and production can be realized.

Referring to fig. 16 and 17, the embodiment of the present invention provides a range hood further including an oil cup 60, the lower end of the box 10 is provided with an oil cup groove, the oil cup 60 is detachably mounted in the oil cup groove, and the lower end face of the oil cup 60 is flush with the lower end face of the box 10, the impeller 70 collects the oil stain thrown away by centrifugation and flows out from the bottom oil dripping hole under the action of gravity, and after being concentrated by the oil collecting tray 80 below, the oil stain flows out from the oil collecting hole at the bottom of the oil collecting tray, and enters the oil cup 60 for storage. Through the arrangement, the hidden installation of the oil cup 60 is realized, so that the appearance of the range hood is more attractive.

In this embodiment, the oil cup 60 is preferably connected with the oil cup groove by a snap, so that the oil cup 60 can be conveniently disassembled and assembled. Specifically, referring to fig. 18 to 20, the oil cup 60 includes an oil cup body 61 and two sets of buckle assemblies 62, the oil cup body 61 is provided with mounting grooves along both sides of its own length direction, the two sets of buckle assemblies 62 are arranged in two mounting grooves in a one-to-one correspondence manner, two clamping grooves corresponding to the buckle assemblies 62 are arranged in the oil cup grooves, and the buckle assemblies 62 can be clamped with the clamping grooves. Or the positions of the buckle assembly 62 and the clamping groove can be exchanged, that is, the buckle assembly 62 is arranged in the oil cup groove, and the clamping groove is arranged on the oil cup body 61.

More specifically, the snap assembly 62 includes a snap 625, a transmission rod set, a button 621, a first return spring 622 and a second return spring 626, a through hole is provided on a groove wall of the mounting groove, and a hook portion 6251 of the snap 625 can extend and retract through the through hole and can be snapped with the slot when the hook portion 6251 extends; the button 621 is connected with the buckle through the transmission rod group, and the hook portion 6251 of the buckle 625 can be controlled to retract from the through hole by pressing the button 621; the first return spring 622 is used for controlling the button 621 to return, and the second return spring 626 is used for controlling the buckle 625 to return. When installing oil cup 60, at first both hands press down the button 621 of both sides respectively, button 621 passes through the driving lever group drive buckle 625's latch portion 6251 withdrawal, first reset spring 622 and second reset spring 626 are compressed simultaneously, then put into the oil cup groove with oil cup 60, and loosen the pressing to button 621, button 621 resets under first reset spring 622's effect, buckle 625 resets under the effect of second reset spring 626, promptly the latch portion 6251 of buckle 625 resets to the state of stretching out by the via hole, latch portion 6251 is fixed with the draw-in groove joint this moment. When the oil cup 60 needs to be cleaned, the two hands respectively press the buttons 621 on the two sides to detach the oil cup 60.

In this embodiment, the transmission lever set preferably includes a first transmission lever 623 and a second transmission lever 624, the first transmission lever 623 is L-shaped, one end of the first transmission lever 623 is connected to the button 621, the other end of the first transmission lever 623 has a first wedge surface, one end of the second transmission lever 624 is connected to the buckle, the other end of the second transmission lever 624 has a second wedge surface, and the first wedge surface and the second wedge surface are in sliding fit. When pressing button 621, button 621 upward movement compresses first reset spring 622, promotes first wedge face upward movement simultaneously, because of first wedge face and second wedge face are the inclined plane contact, so the second wedge face can backward movement to drive buckle 625 rearward movement compresses second reset spring 626 simultaneously.

In this embodiment, preferably, a first positioning portion is disposed in the mounting groove, the first driving rod 623 is slidably disposed through the first positioning portion, and the first return spring 622 is sleeved on the first driving rod 623 and located between the button 621 and the first positioning portion. A second positioning portion is further disposed in the mounting groove, the buckle 625 is slidably disposed through the second positioning portion, and the second return spring 626 is sleeved on the buckle 625 and is located between the second positioning portion and the hook portion 6251.

Further, the embodiment of the utility model provides a range hood still includes oil mass detection device, and oil mass detection device is used for detecting the collection oil volume in the oil cup body 61, and oil mass detection device and alarm device communication are connected. When the collected oil weight in the oil cup 60 reaches a set value, the oil amount detection device controls the alarm device to give an alarm through the electric control signal so as to prompt a user to clean the oil cup 60, so that the oil cup 60 is cleaned in time, and the overflow of oil is avoided.

In this embodiment, referring to fig. 20, the oil amount detecting device is a gravity sensor 90, the gravity sensor 90 is disposed in the slot, when the hook portion 6251 is engaged with the slot, the hook portion 6251 can be supported by the gravity sensor 90, and when the gravity sensor 90 detects that the weight of the oil cup 60 reaches a set weight, it indicates that the oil amount is full, and the oil cup 60 needs to be cleaned. Or the oil mass detection device can also be for including buoyancy ball and sensor, and buoyancy ball sets up in oil cup body 61, and the sensor is used for detecting the height of buoyancy ball, and when the sensor detected that buoyancy ball reached and set for the height, then it was full to explain the oil mass, needs clear up oil cup 60.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. The smoke collecting hood assembly is characterized by comprising an upper baffle (21), a smoke collecting plate (22) and a lower baffle (23), wherein the smoke collecting plate (22) is connected with the upper baffle (21) through a connecting rod assembly (40), and the lower baffle (23) is connected with the upper baffle (21) through a linkage assembly (30);

the exhaust fume collecting hood assembly is in a closed state and an open state, and in the process that the exhaust fume collecting hood assembly is switched from the closed state to the open state, the upper end of the lower baffle (23) is always abutted against the inner wall of the upper baffle (21).

2. A smoke collecting hood assembly according to claim 1, wherein an upper portion of said lower baffle (23) overlaps a lower portion of said upper baffle (21) when said smoke collecting hood assembly is in said closed state.

3. A smoke collecting hood assembly according to claim 1, characterized in that an upper end of the lower baffle (23) abuts against a lower end of the upper baffle (21) when the smoke collecting hood assembly is in the open state.

4. The fume collecting hood assembly according to claim 1, wherein an upper rotating shaft (211) is arranged at the upper end of the upper baffle plate (21), a lower rotating shaft (231) is arranged at the lower end of the lower baffle plate (23), when the fume collecting hood assembly is in the open state, the upper baffle plate (21) and the fume collecting plate (22) are opened around the upper rotating shaft (211), the opening angle of the fume collecting plate (22) is larger than that of the upper baffle plate (21), the lower baffle plate (23) is opened around the lower rotating shaft (231), and a fume collecting area is formed between the fume collecting plate (22) and the lower baffle plate (23).

5. The fume collecting hood assembly according to claim 1, wherein the linkage assembly (30) comprises a slide rail (31) and a linkage bracket (32), the slide rail (31) is arranged on the upper baffle plate (21), one end of the linkage bracket (32) is slidably connected to the slide rail (31), and the other end of the linkage bracket (32) is hinged to the lower baffle plate (23).

6. A fume collecting hood assembly according to claim 1, wherein the connecting rod assembly (40) comprises a first fixing bracket (41), a first connecting rod a (43), a first connecting rod b (44), a second fixing bracket (42), a second connecting rod a (45) and a second connecting rod b (46), the first fixing bracket (41) and the second fixing bracket (42) are respectively fixed on the upper baffle plate (21) and the fume collecting plate (22), one end of the first connecting rod a (43) is hinged with the first fixing bracket (41), the other end of the first connecting rod a (43) is hinged with one end of the first connecting rod b (44), and the other end of the first connecting rod b (44) is hinged with the second fixing bracket (42); one end of the second connecting rod a (45) is hinged with the second fixed bracket (42), the other end of the second connecting rod a (45) is hinged with one end of the second connecting rod b (46), the other end of the second connecting rod b (46) is hinged with the first fixed bracket (41), and the first connecting rod b (44) is hinged with the second connecting rod b (46).

7. A fume collecting hood assembly according to claim 6, wherein the second connecting rod b (46) is provided with a through hole penetrating along the thickness direction, the first connecting rod b (44) is crosswise arranged in the through hole, and the second connecting rod b (46) is hinged with the first connecting rod b (44) at the crossing position.

8. A range hood, characterized by comprising a box body (10) and the smoke collecting hood assembly according to any one of claims 1 to 7, wherein the upper end of the upper baffle (21) is hinged with the upper end of the box body (10), and the lower end of the lower baffle (23) is hinged with the lower end of the box body (10).

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