CN112128816A - Range hood with hinged driving device - Google Patents

Abstract

The application discloses drive arrangement articulated lampblack absorber, open and close including casing, the upset that is equipped with the air intake turn over board, and the drive turn over the drive arrangement of board upset, drive arrangement's one end articulates through first articulated shaft in the casing, the other end articulates through the second articulated shaft turn over on the board, the lampblack absorber is equipped with the swinging boom, the upper end of swinging boom pass through the third articulated shaft with the casing is articulated, the lower extreme of swinging boom with the top fixed connection who turns over the board, the both ends that turn over the board are equipped with and hold together the cigarette wing, turn over the board drive hold together the cigarette wing with enclose between the air intake and hold together the cigarette space. The utility model provides a lampblack absorber, through setting up the cigarette wing and effectively prevented the oil smoke at the in-process that rises to escape and the diffusion to the both ends of holding together the cigarette board, effectively gathers together the oil smoke, prevents that excessive cigarette, running cigarette phenomenon from appearing, effectively promotes user experience.

Description

Range hood with hinged driving device

Technical Field

The invention relates to the technical field of kitchen household appliances, in particular to a range hood with a hinged driving device.

Background

The cooking process of the Chinese traditional food culture comprises frying, baking and the like, a large amount of oil smoke is generated in the process of making food, the oil smoke not only seriously pollutes the environment of a kitchen, but also causes great harm to the body and serious harm to the body of a kitchen operator for a long time, even can suffer from cancers, and therefore, the range hood is widely applied to the kitchen and is an electric appliance for completely sucking and cooking the oil smoke and the like generated in the household kitchen.

Because the air inlet arranged on the shell of the range hood adopts an open design, the upward movement process of the oil smoke is easy to escape from the open to the space of a kitchen, the existing range hood comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood is named as a smoke inlet positioned above a kitchen range and directly sucks the smoke from the top; the side-suction type smoke machine is characterized in that the smoke inlet is positioned at one side of the stove, side air inlet is adopted to realize oil smoke separation, and the negative pressure area of the smoke inlet is close to the oil smoke generation area and is not easy to touch the head, which is the advantage of the side-suction type smoke machine relative to the top-suction type smoke machine. But this kind of side-draught range hood's smoke inlet generally all sets up one and turns over the board, the switching of opening and shutting control smoke inlet through turning over the board, only turn over the mode of board like this, turn over the board and open the back, turn over the left and right sides of board and advance and do not have between the mouth and shelter from, the oil smoke rises the in-process easily to both sides escape and diffusion rising, the appearance is discharged fume, the excessive cigarette phenomenon, can cause the diffusion of oil smoke, be unfavorable for gathering together and exhausting of oil smoke, lead to the lampblack absorber efficiency lower, lampblack absorber effect and user experience are relatively poor.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the range hood with the hinged driving device, which can effectively prevent oil smoke from escaping and diffusing to two sides in the rising process, effectively collect the oil smoke, prevent the phenomena of smoke overflow and blasthole, has better oil smoke absorption effect, can also avoid scraping and noise generation between smoke collecting fins and a shell, ensure that the smoke collecting plate is smoothly turned over to open and close an air inlet, and improve the use experience of a user.

In order to solve the technical problems, the invention adopts the following technical scheme:

a range hood with a hinged driving device comprises a shell provided with an air inlet, a turning plate for turning on and off the air inlet, and a driving device for driving the turning plate to turn over, it is characterized in that one end of the driving device is hinged in the shell through a first hinged shaft, the other end of the driving device is hinged on the turning plate through a second hinged shaft, the range hood is provided with a rotating arm, the upper end of the rotating arm is hinged with the shell through a third hinged shaft, the lower end of the rotating arm is fixedly connected with the top of the turning plate, the third hinge shaft is positioned outside the straight line where the first hinge shaft and the second hinge shaft are positioned, the driving device is driven in a telescopic way in the connecting direction of the first articulated shaft and the second articulated shaft, the turning plate rotates around the third hinge shaft to be opened, the two ends of the turning plate are provided with cigarette collecting fins, and the turning plate drives the cigarette collecting fins and the air inlet to form a cigarette collecting space.

The turning plate and the smoke collecting fins at two ends of the turning plate of the range hood form a smoke collecting space, so that when the range hood works, oil smoke is collected in the smoke collecting space and then is sucked into the smoke collecting cavity. Wherein, use drive arrangement to control the switching that turns over the board and then adjust the area that opens and shuts that gathers up the cigarette space to, drive arrangement's one end is through first articulated shaft mobilizable installation in the casing of lampblack absorber, and the other end passes through the second articulated shaft and turns over mobilizable being connected of board, makes drive arrangement in the casing like this and the fixed angle of turning over the board all adjustable, makes drive arrangement can move more nimble when the board is turned over in the promotion. The shell is connected with the turning plate through the rotating arm, one end of the rotating arm is rotatably connected to the upper portion of the shell through the third hinge shaft, the other end of the rotating arm is fixedly connected with the turning plate, the opening and closing angle of the baffle is controlled through the driving device, meanwhile, the baffle is connected with the whole shell in the opening process through the rotating arm, and the turning plate can be opened in a rotating mode around the third hinge shaft. Like this, use drive arrangement and swinging boom cooperation to push away and turn over the board and form with the cigarette wing of holding together at both ends and hold together the cigarette space, prevent that the oil smoke from escaping and diffusing in rising in-process looks both sides, effectively gathering together the oil smoke, user experience is better.

Further, the casing is equipped with the fixing base, set up on the fixing base the third hinge shaft, the upper end of swinging boom be equipped with third hinge shaft complex rotatory hole, the third hinge shaft passes rotatory hole makes the swinging boom rotatable with the fixing base links to each other.

The third hinge axle passes rotatory hole for rotatable the connecting on the fixing base of casing of swinging boom, simultaneously, the setting of fixing base can improve the installation stability of swinging boom, causes the damage to the casing when avoiding swinging boom direct mount to rotate on the casing.

The fixing base includes the engaging lug that two intervals set up about, the third hinge passes rotatory hole is established on the engaging lug.

The rotating arm is fixedly matched with the third hinge shaft and clamped between the two connecting lugs, the mounting position of the rotating arm is limited, and the position of the cigarette holding fin in the opening and closing process is indirectly limited.

Furthermore, drive arrangement includes frame, driver and telescopic link, the driver fixed connection in the frame, the telescopic link in flexible drive on the driver, the one end of frame is passed through first articulated shaft articulates in the casing roof, second articulated shaft with third articulated shaft is less than in the horizontal direction first articulated shaft.

The frame is rotatable through first articulated shaft and casing roof fixed connection for drive arrangement and the contained angle that the roof of casing formed are adjustable, have increased drive arrangement's flexibility. And the telescopic link can stretch out and draw back and then promote the angle that opens and shuts that turns over the board control and turn over under the drive of driver, and second articulated shaft and third articulated shaft all lie in the below of first articulated shaft on the horizontal direction, and drive arrangement is the trend of downward sloping like this, and the board is turned over in the more convenient drive.

Furthermore, the third hinge shaft is located above a connecting line of the first hinge shaft and the second hinge shaft, the turning plate has an opening state and a closing state, and in the opening state and the closing state, an included angle between the connecting line of the first hinge shaft and the second hinge shaft and the connecting line of the first hinge shaft and the third hinge shaft is equal.

The third articulated shaft is located the setting of the top of first articulated shaft and second articulated shaft line, lets the one end of swinging boom link to each other with the upper end that turns over the board, and the other end links to each other with the upper end of casing, has guaranteed that the swinging boom is located the casing and has turned over the upper end of board, and, the setting that the line of first articulated shaft and second articulated shaft equals with the line contained angle of first articulated shaft and third articulated shaft, makes under open mode and closed mode, the atress direction of second articulated shaft is the same, and then has guaranteed drive arrangement's life.

Furthermore, the cigarette gathering fin comprises a cigarette gathering plate and a connecting plate which are integrally bent and formed, the connecting plate is fixedly connected to the back side of the turning plate, the lower end of the rotating arm is fixedly connected to the cigarette gathering plate, and the second hinge shaft is hinged to the connecting plate.

The smoke gathering plate is used for enclosing and blocking oil smoke on two sides, the gathering effect of the oil smoke is achieved, the connecting plate is used for fixing the smoke gathering fins on the turning plate to achieve the fixing effect, the smoke gathering fins and the turning plate are formed in a split mode, the smoke gathering fins and the turning plate are connected and fixed through the later connecting plate and the turning plate, and therefore the problem that machining difficulty is large when the smoke gathering plates are integrally formed is solved. Meanwhile, the rotating arm is fixed on the cigarette collecting plate, a third hinge shaft hinged to the other end of the rotating arm is indirectly connected with the cigarette collecting plate, a second hinge shaft hinged to the driving device is arranged on the connecting plate, when the cigarette collecting fins are in an opening and closing state, the driving device directly drives the turning plate through the second hinge shaft, and the rotating arm drives the whole cigarette collecting fins to turn over by taking the third hinge shaft as a shaft.

Furthermore, the casing is including being located the mounting panel of the left and right sides of air intake, be equipped with the confession on the mounting panel hold together the cigarette wing with the hole of dodging that the swinging boom runs through, turn over the board closure during the air intake, turn over the board and lean on the mounting panel, drive arrangement still includes the locating part, hold together the cigarette board with it is spacing in the locating part slides.

Furthermore, the limiting part is installed on the inner side of the mounting plate, the limiting part comprises two limiting plates which are arranged at left and right intervals, and the bottom of the cigarette collecting plate is clamped between the two limiting plates.

When the smoke collecting fin closes the air inlet, the turning plate is attached to the mounting plate, and the mounting plate is provided with a avoiding hole for the penetration of the smoke collecting fin and the rotating arm. Such design can make and hold together the cigarette board and close the cigarette wing and accomodate in the casing with the swinging boom when the air intake. The cigarette gathering plate realizes the left and right limiting in the opening and closing process of the cigarette gathering fin through sliding limiting in the limiting part, and the smoothness of the motion of the cigarette gathering plate is guaranteed.

Furthermore, at least one of the limiting plates is provided with a convex hull arranged towards the other limiting plate, the convex hull is hemispherical, and the cigarette collecting plate is provided with an arc convex rib matched with the convex hull for limiting.

Therefore, the friction force of the cigarette gathering plate in the offset process is reduced while the left offset and the right offset of the cigarette gathering plate are prevented, and the fluency of the turning action of the cigarette gathering plate is improved.

Furthermore, the locating part is an arc-shaped guide rail arranged on the side wall of the shell, an arc-shaped guide groove is formed in the arc-shaped guide rail, an inserting piece is connected to the bottom of the cigarette gathering plate, and the inserting piece is inserted into the guide groove and slides along the guide groove to be limited.

Through the slip of inserted sheet in the guide way, prevent to hold together the skew of cigarette board, also guaranteed simultaneously to hold together the cigarette board can keep the equal clearance with the arc guide way in the motion process, effectively avoid taking place to interfere the friction, make the motion of turning over the board steady more reliable, user experience is better.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a perspective view of a range hood according to the present invention;

FIG. 2 is a schematic structural diagram of a range hood according to an embodiment of the present invention;

FIG. 3 is a schematic structural view illustrating a closed cigarette collecting plate according to an embodiment of the present invention;

FIG. 4 is a schematic structural view illustrating opening of a cigarette collecting plate according to an embodiment of the present invention;

FIG. 5 is a partial perspective view of a range hood according to an embodiment of the present invention;

FIG. 6 is an exploded view of a range hood according to an embodiment of the present invention;

FIG. 7 is a right side cross-sectional view of a range hood in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a part of the structure of a range hood according to an embodiment of the present invention;

fig. 9 is an assembly view of the cigarette gathering fin, the turning plate, the limiting member and the rotating arm in the first embodiment of the invention;

fig. 10 is an exploded view of the smoke collecting fin, the turning plate, the limiting member and the rotating arm according to the first embodiment of the present invention;

FIG. 11 is a schematic structural view of the internal part of a range hood in the second embodiment of the present invention;

FIG. 12 is an exploded view of the range hood in the second embodiment of the present invention;

FIG. 13 is a schematic structural view illustrating opening of a smoke gathering fin in the second embodiment of the present invention;

fig. 14 is a schematic structural view of a closed smoke gathering fin in the second embodiment of the present invention;

fig. 15 is a schematic structural view illustrating a limiting member and a smoke collecting plate in a limiting fit manner according to a second embodiment of the present invention;

FIG. 16 is a schematic structural view of the cooperation between the smoke collecting fin and the guide rail in the third embodiment of the present invention;

fig. 17 is a schematic structural view of a smoke gathering fin in the fourth embodiment of the present invention.

Reference numerals:

1. the cigarette case comprises a case body, 100, an air inlet, 102, a mounting plate, 1021, an avoiding hole, 2, a turning plate, 3, a driving device, 301, a frame, 302, a driver, 303, a telescopic rod, 304a, an arc-shaped guide rail, 304a1, an arc-shaped guide groove, 304b, a limiting piece, 304b1, a limiting plate, 304b2, a convex bag, 4, a first hinge shaft, 5, a second hinge shaft, 6, a third hinge shaft, 7, a rotating arm, 701, a rotating hole, 8, a cigarette collecting fin, 801, a cigarette collecting plate, 802, a connecting plate, 803, an arc-shaped convex rib, 9, a fixing seat, 901, a connecting lug, 10, an inserting piece, c, an included angle between a connecting line of the first hinge shaft and the second hinge shaft and a connecting line of the first hinge shaft and the third hinge shaft, 11, a cigarette fin guide rail, 12, a sliding rail, 13, a clamping part, 14, a first side plate, 15, a second side plate, 16, a guide.

Detailed Description

The invention provides a range hood with a hinged driving device, which comprises a shell 1 provided with an air inlet 100, a turning plate 2 for turning on and off the air inlet 100 and a driving device 3 for driving the turning plate 2 to turn over, wherein one end of the driving device 3 is hinged in the shell 1 through a first hinged shaft 4, the other end of the driving device 3 is connected on the turning plate 2 through a second hinged shaft 5, the range hood is provided with a rotating arm 7, the upper end of the rotating arm 7 is hinged with the shell 1 through a third hinged shaft 6, the lower end of the rotating arm 7 is fixedly connected with the top of the turning plate 2, the third hinged shaft 6 is positioned outside a straight line where the first hinged shaft 4 and the second hinged shaft 5 are positioned, the driving device 3 is driven in a telescopic way in the connecting direction of the first hinged shaft 4 and the second hinged shaft 5, the turning plate 2 is opened in a rotating way around the third hinged shaft 6, two ends of the turning plate 2 are provided with smoke collecting fins 8, and the turning plate 2 drives the smoke collecting fins 8 and the air inlet 100 to form a smoke collecting space.

In the invention, the turning plate 2 of the range hood and the smoke collecting fins 8 positioned at two ends of the turning plate 2 form a smoke collecting space, so that when the range hood works, oil smoke is collected in the smoke collecting space and then is sucked into the smoke collecting cavity. Wherein, use drive arrangement 3 to control the switching that turns over board 2 and then adjust the area that opens and shuts of gathering together the cigarette space, and, the mobilizable casing 1 of installing at the lampblack absorber of first articulated shaft 4 is passed through to drive arrangement 3's one end, make drive arrangement installation angle in the casing adjustable like this, and simultaneously, drive arrangement 3's the other end passes through second articulated shaft 5 and turns over board 2 mobilizable being connected, drive arrangement's the other end like this and the fixed angle of turning over the board also adjustable, make drive arrangement can move more in a flexible way when the board is turned over in the promotion. Turn over between the board 2 and be connected through swinging boom 7 at casing 1, the rotatable even upper portion at casing 1 of third articulated shaft 6 is passed through to swinging boom 7's one end, the other end with turn over board 2 fixed connection, through the angle that opens and shuts of drive arrangement control baffle, simultaneously, the baffle has then been guaranteed in the setting of swinging boom opening process with whole casing be connected to make to turn over the board and can open in order to rotate around third articulated shaft. Like this, use drive arrangement and swinging boom cooperation to push away and turn over the board and form with the cigarette wing of holding together at both ends and hold together the cigarette space, prevent that the oil smoke from escaping and diffusing in rising in-process looks both sides, effectively gathering together the oil smoke, user experience is better.

The first embodiment,

As shown in fig. 1 to 10, the range hood in this embodiment is a side-suction range hood, and includes a housing 1 having an air inlet 100, a turning plate 2 for turning on and off the air inlet 100, and a driving device 3 for driving the turning plate 2 to turn over, one end of the driving device 3 is hinged in the housing 1 through a first hinge shaft 4, the other end is connected to the turning plate 2 through a second hinge shaft 5, the range hood is provided with a rotating arm 7, the upper end of the rotating arm 7 is hinged to the housing 1 through a third hinge shaft 6, the lower end of the rotating arm 7 is fixedly connected to the top of the turning plate 2, the third hinge shaft 6 is located outside a straight line where the first hinge shaft 4 and the second hinge shaft 5 are located, the driving device 3 drives the turning plate 2 to rotate and open around the third hinge shaft 6 in a telescopic manner in a connection direction of the first hinge shaft 4 and the second hinge shaft 5, two ends of the turning plate 2 are provided with smoke collecting fins 8, and the turning plate 2 drives the smoke collecting fins 8 and the air inlet 100 to form a smoke collecting space.

The cigarette gathering fin 8 in the embodiment is hinged to the shell 1 through the rotating arm 7, and the turning plate 2 is controlled by the driving device 3, so that the opening and closing area of the cigarette gathering space is adjusted by opening and closing the air inlet 100 through turning. And, drive arrangement 3 is installed in the casing 1 of lampblack absorber through mobilizable connection of one end and first articulated shaft 4, and the other end is fixed on turning over board 2 with mobilizable connection of second articulated shaft 5, makes drive arrangement's installation angle in the casing and fixes the installation angle adjustable on turning over the board like this, lets drive arrangement can move more in a flexible way when turning over the board to the promotion. Be connected through swinging boom 7 between casing 1 and the board 2 that turns over, the rotatable connection in the upper portion of casing 1 of one end through third articulated shaft 6 of swinging boom 7, the other end with turn over board 2 fixed connection, the setting of swinging boom has then guaranteed the baffle and is being connected with whole casing at the opening in-process, can let turn over the board and open in order to rotate around third articulated shaft. Like this, use drive arrangement and swinging boom cooperation to push away and turn over the board and form with the cigarette wing of holding together at both ends and hold together the cigarette space, prevent that the oil smoke from escaping and diffusing in rising in-process looks both sides, effectively gathering together the oil smoke, user experience is better.

As shown in fig. 8-10, the cigarette gathering fin 8 in this embodiment includes a cigarette gathering plate 801 and a connecting plate 802 that are integrally formed by bending, the connecting plate 802 is fixedly mounted on the back side of the turning plate 8 by means of screw connection or adhesion, the lower end of the rotating arm 7 is fixedly connected to the cigarette gathering fin 8, and the second hinge shaft 5 is hinged to the connecting plate 802, so that the hinge connection between the driving device and the turning plate is realized. Preferably, the connecting plate 802 and the rotating arm 7 are both located on the inner side of the smoke gathering plate 801, so that when the smoke gathering plate 8 is turned over to open the air inlet 100, the connecting plate 802 and the rotating arm 7 are exposed, and the overall appearance of the range hood is improved.

The smoke gathering plate is used for enclosing and blocking oil smoke on two sides, the gathering effect of the oil smoke is achieved, the connecting plate is used for fixing the smoke gathering fins on the turning plate to achieve the fixing effect, the smoke gathering fins and the turning plate are formed in a split mode, the smoke gathering fins and the turning plate are connected and fixed through the later connecting plate and the turning plate, and therefore the problem that machining difficulty is large when the smoke gathering plates are integrally formed is solved. Meanwhile, the rotating arm is fixed on the cigarette collecting plate, a third hinge shaft hinged to the other end of the rotating arm is indirectly connected with the cigarette collecting plate, a second hinge shaft hinged to the driving device is arranged on the connecting plate, when the cigarette collecting fins are overturned, the driving device directly drives the turning plate through the second hinge shaft, and the rotating arm drives the whole cigarette collecting fins to overturn by taking the third hinge shaft connected with the cigarette collecting plates at the two ends as a shaft.

In this embodiment, casing 1 is equipped with fixing base 9, and fixing base 9 passes through the position that the mounting screw is located cigarette gathering plate 8 top at casing 1's antetheca, sets up third hinge shaft 6 on fixing base 9, and the upper end of swinging boom 7 is equipped with third hinge shaft 6 complex rotatory hole 701, and third hinge shaft 6 passes rotatory hole 701 for swinging boom 7 is rotatable to link to each other with fixing base 9, and the upper end that has realized the swinging boom is articulated with the casing. Simultaneously, the setting of fixing base can improve the installation stability of swinging boom, avoids the condition that causes the damage to the casing when the swinging boom direct mount rotates on the casing.

As shown in fig. 5-8, the fixing base 9 includes two left and right connection lugs 901 spaced apart from each other, and the third hinge shaft 6 is disposed on the connection lugs 901 through the rotation hole 701. In this embodiment, the cigarette gathering plate 801 is fixedly matched with the third hinge shaft 6 and clamped between the two connecting lugs, so that the mounting position of the third hinge shaft is limited, and the position of the cigarette gathering fin in the opening and closing process is indirectly limited.

In this embodiment, the driving device 3 includes a frame 301, a driver 302 and a telescopic rod 303, the driver 302 is fixedly connected to the frame 301, the telescopic rod 303 is driven to extend and retract on the driver 302, one end of the frame 301 is hinged to the top wall of the housing 1 through a first hinge shaft 4, and the second hinge shaft 5 and the third hinge shaft 6 are lower than the first hinge shaft 4 in the horizontal direction. Like this, frame 301 is rotatable through first articulated shaft 4 and casing 1 roof fixed connection for the contained angle that drive arrangement 3 and casing 1 roof formed is adjustable, has increased drive arrangement's flexibility. And telescopic link 303 can stretch out and draw back and then promote to turn over the angle that opens and shuts of board 2 control turning over under the drive of driver 302, and second articulated shaft 5 and third articulated shaft 6 all are located the below of first articulated shaft 1 on the horizontal direction, and drive arrangement is the trend of downward sloping like this, and the board is turned over in the more convenient drive.

As shown in fig. 3 and 4, the third hinge shaft 6 is located above the connection line between the first hinge shaft 4 and the second hinge shaft 5, so that one end of the rotating arm is connected to the upper end of the turning plate, and the other end of the rotating arm is connected to the upper end of the housing, thereby ensuring that the rotating arm is located at the upper ends of the housing and the turning plate. The turning plate 2 has an opening state and a closing state, and in the opening state and the closing state, the included angle between the connecting line of the first hinge shaft 4 and the second hinge shaft 5 and the connecting line of the first hinge shaft 4 and the third hinge shaft 6 is equal, namely, the degree of the angle c is the same in the opening state and the closing state of the turning plate. By means of the arrangement, the stress direction of the second hinge shaft is the same in the opening state and the closing state, and the service life of the driving device is further guaranteed.

As shown in fig. 1, 2 and 3, the range hood further includes a mounting plate 102 installed at the left and right sides of the air inlet 100, a avoiding hole 1021 for the smoke collecting fin 8 to penetrate through is formed in the mounting plate, when the air inlet 100 is closed by the turning plate 2, the turning plate 2 is attached to the mounting plate 100, and the driving device 3 further includes a limiting member, so that the smoke collecting fin 8 slides and is limited in the limiting member.

When the smoke collecting fin 8 closes the air inlet 100, the turning plate 2 is attached to the mounting plate 102, and the smoke collecting fin and the rotating arm can be accommodated in the shell by the design. The cigarette gathering plate realizes the left and right limiting in the opening and closing process of the cigarette gathering fin through sliding limiting in the limiting part, and the smoothness of the motion of the cigarette gathering plate is guaranteed.

In this embodiment, the limiting member is an arc-shaped guide rail 304a installed on the side wall of the housing 1, an arc-shaped guide groove 304a1 is provided on the arc-shaped guide rail 304a, and the inserting sheet 10 is connected to the bottom of the cigarette collecting plate 801, and is inserted into the guide groove 304a1 through the inserting sheet 10 and slides along the guide groove 304a1 for limiting. Like this, through the slip of inserted sheet in the guide way, prevent to hold together the skew of cigarette board, it is spacing to leading to the motion of turning over the board for the casing, has also guaranteed simultaneously to hold together the cigarette board can keep the equidistant clearance with the arc guide way in the motion process, effectively avoids taking place the interference friction, makes the motion of turning over the board more steady reliable, and user experience is better.

The inserting piece 10 is located at the end part of the smoke collecting plate 801 far away from the turning plate 2, the maximum opening area of the turning plate 2 can be guaranteed, a smoke collecting space can be larger, the smoke collecting effect is better, and the oil smoke suction efficiency is improved.

Example II,

As shown in fig. 11 to 15, compared with the first embodiment, the difference of the present embodiment is that the limiting member 304b in the present embodiment is installed inside the mounting plate 102 by a screw, the limiting member 304b is disposed near the bottom end of the avoiding hole 1021 of the internal smoke collecting plate 801, the limiting member 304b includes two limiting plates 304b1 disposed at left and right intervals, and the bottom of the smoke collecting plate 801 is slidably clamped between the two limiting plates 304b 1. The left and right limiting of the cigarette gathering plate 801 can be realized through the two limiting plates 304b1, the friction force received by the cigarette gathering plate 801 in the overturning process can be reduced, and therefore the motion smoothness of the cigarette gathering plate is guaranteed.

In order to further reduce the friction force applied to the cigarette gathering plate 801 during the turning process and improve the smoothness of the turning action of the cigarette gathering plate 801, the limiting plate 304b1 in this embodiment has a convex hull 304b2 arranged toward the other limiting plate 304b1, the convex hull 304b2 is hemispherical, the bottom of the cigarette gathering plate is slidably clamped between the two convex hulls 304b2, preferably, the bottom of the cigarette gathering plate 801 is partially arched outwards to form an arc-shaped convex rib 802, and the arc-shaped convex rib 802 is slidably clamped between the two convex hulls 304b 2.

It can be understood that the bottom both sides of holding together the cigarette board all are equipped with the protruding muscle of arc that forms, and the cross section of the protruding muscle of arc is semi-circular, and the protruding muscle of arc offsets with the limiting plate, so the design, the bottom slip clamp that also can realize the arc presss from both sides between two limiting plates.

EXAMPLE III

As shown in fig. 16, compared with the first embodiment, the difference of the present embodiment is that the side wall of the housing 1 in the present embodiment is provided with a smoke collecting fin guide rail 11, the smoke collecting fin 8 slides in the smoke collecting fin guide rail 11 in a translation manner, and the smoke collecting fin 8 is connected to the turning plate 2 in a sliding manner, so that the turning plate 2 and the smoke collecting fin 8 enclose a smoke collecting space after being opened in place. When the turning plate 2 is in a closed state, the end face of the cigarette collecting fin 8 is far away from or does not contact with the turning plate 2 and can be completely contained in the shell 1, so that when the cigarette making machine is not used, the cigarette collecting fin is not in contact with the turning plate, and the cigarette collecting fin is prevented from being abutted against the turning plate for a long time to damage the turning plate; when the turning plate 2 is opened in place, the edge is attached to the inner side of the turning plate 3 after the turning plate 3 is opened in place, so that no gap exists between the turning plate 2 and the smoke collecting plate 8 as far as possible, and the gathering and the exhausting of the oil smoke are facilitated.

Wherein, hold together cigarette wing guide rail 11 and can the level set up in the casing also can slope and set up downwards to turning over the inboard of board 2 and being equipped with slide rail 12, holding together 8 front ends of cigarette board and being equipped with joint portion 9, joint portion 9 swing joint is in slide rail 12, and like this holding together the in-process of cigarette board translation, the inside slide that slides in joint portion 9 cigarette slide rail 12.

Example four

As shown in fig. 17, compared with the first embodiment, the difference of the first embodiment is that the smoke collecting fin includes two side plates hinged to the housing 1 in Tongzhou, the side plates include a first side plate 14 and a second side plate 15, the first side plate 14 is fixedly connected to the turning plate 2, the second side plate 15 is connected to the housing 1, the first side plate 14 is connected to the second side plate 15 in a matching manner through a sliding mechanism, and when the driving mechanism drives the smoke collecting fin to open and close the air inlet, the smoke collecting fin is unfolded outside the housing 1 or folded inside the housing 1 through the sliding mechanism.

It is understood that the number of side plates may be any number greater than two.

The sliding mechanism is a guide post 16 arranged on the first side plate 14 and a side plate guide groove 17 arranged on the second side plate 15, the guide post 16 is clamped in the side plate guide groove 17 to slide, and when the turning plate 2 opens or closes the air inlet 100, the guide post 16 slides from one end of the side plate guide groove 17 to the other end. An elastic member (not shown) is further disposed between the second side plate and the housing, when the air inlet 100 is opened, the first side plate 14 pulls the second side plate 15 to turn outwards from the housing 1 and stretches the elastic member, and when the air inlet is closed, the second side plate 15 is accommodated in the housing 1 under the pulling force of the elastic member.

The cigarette collecting fin comprises a plurality of side plates which are coaxially hinged on a shell, and two adjacent side plates are matched through a sliding mechanism, so when a driving mechanism drives the cigarette collecting plate to open an air inlet, the side plates are sequentially unfolded outside the shell through the sliding mechanism and are similar to folding fan opening, the size of the unfolded cigarette collecting fin is about the sum of the sizes of all the side plates, when the driving mechanism drives the cigarette collecting plate to close the air inlet, the side plates are sequentially folded and accommodated in the shell through the sliding mechanism and are similar to folding fan folding, the size of the cigarette collecting fin is equivalent to the size of one side plate, namely the size of the shell can be set to be used for accommodating one side plate, and if the opening angle is fixed, the size of each side plate is correspondingly reduced along with the increase of the number of the side plates, and the size of the corresponding shell is also reduced. Therefore, compared with the prior art that the smoke gathering fin only comprises one side plate with a larger size, the smoke gathering fin structure can greatly reduce the size of the shell under the condition that the opening angle of the smoke gathering plate can be increased, and further reduces the occupied space, the manufacturing cost and the transportation cost of the range hood.

While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. A range hood with a hinged driving device comprises a shell provided with an air inlet, a turning plate for turning on and off the air inlet, and a driving device for driving the turning plate to turn over, it is characterized in that one end of the driving device is hinged in the shell through a first hinged shaft, the other end of the driving device is hinged on the turning plate through a second hinged shaft, the range hood is provided with a rotating arm, the upper end of the rotating arm is hinged with the shell through a third hinged shaft, the lower end of the rotating arm is fixedly connected with the top of the turning plate, the third hinge shaft is positioned outside the straight line where the first hinge shaft and the second hinge shaft are positioned, the driving device is driven in a telescopic way in the connecting line direction of the first articulated shaft and the second articulated shaft, the turning plate rotates around the third hinge shaft to be opened, the two ends of the turning plate are provided with cigarette collecting fins, and the turning plate drives the cigarette collecting fins and the air inlet to form a cigarette collecting space.

2. A range hood as claimed in claim 1, wherein the housing is provided with a fixing seat, the fixing seat is provided with the third hinge shaft, the upper end of the rotary arm is provided with a rotary hole matched with the third hinge shaft, and the third hinge shaft penetrates through the rotary hole, so that the rotary arm is rotatably connected with the fixing seat.

3. A range hood as claimed in claim 2, wherein the fixing base comprises a left connecting lug and a right connecting lug which are arranged at intervals, and the third hinge shaft penetrates through the rotary hole to be arranged on the connecting lugs.

4. The range hood according to claim 1, wherein the driving device comprises a frame, a driver and a telescopic rod, the driver is fixedly connected to the frame, the telescopic rod is driven to extend and retract on the driver, one end of the frame is hinged to the top wall of the shell through the first hinge shaft, and the second hinge shaft and the third hinge shaft are lower than the first hinge shaft in the horizontal direction.

5. A range hood as claimed in claim 4, wherein the third hinge shaft is located above a connecting line of the first hinge shaft and the second hinge shaft, the flap has an open state and a closed state, and in the open state and the closed state, an included angle between the connecting line of the first hinge shaft and the second hinge shaft and the connecting line of the first hinge shaft and the third hinge shaft is equal.

6. A range hood as claimed in any one of claims 1 to 5, wherein the smoke collecting fin comprises a smoke collecting plate and a connecting plate which are integrally bent, the connecting plate is fixedly connected to the back side of the turning plate, the lower end of the rotating arm is fixedly connected to the smoke collecting plate, and the second hinge shaft is hinged to the connecting plate.

7. The range hood according to claim 6, wherein the housing includes mounting plates located on left and right sides of the air inlet, a dodging hole for the smoke gathering fin and the rotary arm to penetrate is formed in the mounting plates, the turning plate closes the air inlet, the turning plate is attached to the mounting plates, the driving device further includes a limiting part, and the smoke gathering plate slides in the limiting part for limiting.

8. A range hood as claimed in claim 7, wherein the limiting member is mounted inside the mounting plate, the limiting member comprises two limiting plates arranged at left and right intervals, and the bottom of the smoke collecting plate is clamped between the two limiting plates.

9. A range hood as claimed in claim 8, wherein at least one of the limiting plates has a convex hull facing another limiting plate, the convex hull is hemispherical, and the smoke collecting plate is provided with an arc convex rib which is matched with the convex hull for limiting.

10. A range hood as claimed in claim 7, wherein the limiting member is an arc-shaped guide rail mounted on the side wall of the housing, an arc-shaped guide groove is formed in the arc-shaped guide rail, and an insertion sheet is connected to the bottom of the smoke collecting plate and inserted into the guide groove and slides along the guide groove for limiting.

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