Range hood

Abstract

The utility model discloses a range hood. The range hood comprises a rack, a smoke collecting assembly and an opening and closing piece. The smoke collecting assembly is installed on the rack and comprises a smoke collecting body and a lifting body, and the lifting body is movably installed on the smoke collecting body. The opening and closing piece is movably installed on the smoke collecting body. Wherein a main air inlet can be defined by the lifting main body and the smoke collecting main body, an auxiliary air inlet is further formed in the smoke collecting main body, the opening and closing piece and the auxiliary air inlet are arranged correspondingly, the main air inlet and the auxiliary air inlet face the same direction, and the opening and closing piece and the lifting main body are in transmission connection through a transmission mechanism. In this way, motion control can be optimized when the range hood is turned on and turned off.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a range hood. BACKGROUND

[0002] The range hood can remove the gas such as oil fume rising. With the continuous development of range hood technology, there is a higher and higher requirement for the smoke exhaust effect of the range hood. In the related technology, a single range hood takes in air through a single air inlet, the air inlet mode is single, and the effect of removing oil fume is poor. The way of setting multiple air inlets can optimize the smoke exhaust of the range hood, but multiple air inlets will make the movement control of the range hood in the process of opening and closing multiple air inlets complex. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a range hood, which can optimize the movement control when the range hood is opened and closed.

[0004] Embodiments of the present application provide a range hood. The range hood comprises a rack, a smoke collecting assembly and an opening and closing piece. The smoke collecting assembly is installed on the rack, and the smoke collecting assembly comprises a smoke collecting main body and a lifting main body, the lifting main body being movably installed on the smoke collecting main body. The opening and closing piece is movably installed on the smoke collecting main body. The lifting main body can form a main air inlet together with the smoke collecting main body, the smoke collecting main body is further provided with an auxiliary air inlet, the opening and closing piece is provided correspondingly to the auxiliary air inlet, the main air inlet and the auxiliary air inlet are oriented in the same direction, and the opening and closing piece is in transmission connection with the lifting main body through a transmission mechanism.

[0005] Optionally, the range hood has an open state and a closed state;

[0006] When the range hood is in the open state, the lifting main body moves away from the smoke collecting main body to open the main air inlet, and the opening and closing piece moves away from the auxiliary air inlet to open the auxiliary air inlet;

[0007] When the range hood is in the closed state, the lifting main body moves towards the smoke collecting main body to close the main air inlet, and the opening and closing piece moves towards the auxiliary air inlet to close the auxiliary air inlet.

[0008] Optionally, the transmission mechanism comprises a sliding block, a connecting rod mechanism and a pushing piece; the sliding block is fixedly connected with the lifting main body, slidably connected with the smoke collecting main body, and hingedly connected with the connecting rod mechanism; the pushing piece is fixedly connected with the opening and closing piece, and hingedly connected with the connecting rod mechanism; and the opening and closing piece is hingedly connected with the smoke collecting main body.

[0009] Optionally, the transmission mechanism has a first state and a second state, the range hood is in the open state when the transmission mechanism is in the first state, and the range hood is in the closed state when the transmission mechanism is in the second state; and the transmission mechanism can be switched between the first state and the second state through the movement of the opening and closing piece or the lifting main body.

[0010] Optionally, the range hood has a front side and a rear side, the main air inlet and the auxiliary air inlet both face the front side; when the range hood is in the open state, the smoke collection body is arranged between the machine frame and the lifting body, and the main air inlet is farther away from the machine frame than the auxiliary air inlet.

[0011] Optionally, the sliding block comprises a sliding part and an extension part fixedly connected, the sliding part is in sliding connection with the smoke collection body, and in the direction towards the machine frame, the extension part extends from the sliding part to the direction close to the front side.

[0012] Optionally, in the case that the transmission mechanism is in the first state and the second state, in the direction towards the machine frame, the connecting rod mechanism extends from the sliding block to the rear side.

[0013] Optionally, at least in the case that the transmission mechanism is in the first state, in the direction towards the machine frame, the pushing piece extends from the connecting rod mechanism to the front side.

[0014] Optionally, the sliding block and the connecting rod mechanism are arranged in the smoke collection body, the smoke collection body is provided with an opening, and the pushing piece is connected with the opening and closing piece outside the smoke collection body through the opening.

[0015] Optionally, the range hood further comprises a driving device, the driving device is fixedly connected with the smoke collection body and is in driving connection with the lifting body.

[0016] Optionally, the transmission mechanism further comprises a limiting piece, the limiting piece is fixedly arranged opposite to the lifting body and is in sliding connection with the smoke collection body.

[0017] In the process that the transmission mechanism is moved from the first state to the second state, the limiting piece is in abutment with the pushing piece, and in the process that the transmission mechanism is moved from the second state to the first state, the limiting piece is separated from the pushing piece.

[0018] Optionally, the pushing piece has a clamping part, the pushing piece is selectively clamped with the smoke collection body through the clamping part, and at least part of the pushing piece is located outside the smoke collection body in the case that the pushing piece is clamped with the smoke collection body.

[0019] Optionally, the smoke collection body comprises a rear plate and a front plate arranged at intervals and a plurality of side plates connecting the front plate and the rear plate, the auxiliary air inlet is arranged on the side of the front plate away from the lifting body, and the lifting body can be accommodated between the front plate and the rear plate.

[0020] The front plate, the side plate and the rear plate surround the smoke collection body to form a rectangular parallelepiped shape.

[0021] And / or, the range hood has a mounting surface parallel to the rear plate and the front plate, and the distance between each part of the front plate and the mounting surface is equal.

[0022] The beneficial effects of the present application are: Different from the prior art, by setting the lifting main body and the smoke collecting main body in cooperation, the main air inlet can be formed. The main air inlet can supply most of the gas to enter, and then be removed through the rack. The lifting main body can open or close the main air inlet through movement, and at the same time can improve the aesthetic degree of the range hood. By setting the auxiliary air inlet on the smoke collecting main body, the gas that does not enter the main air inlet can be sucked in. By setting the opening and closing piece, the auxiliary air inlet can be opened or closed. And in the case that the opening and closing piece is opened, the opening and closing piece can also play the effect of guiding the flow of smoke, and more gas flow is guided to the auxiliary air inlet. By setting the auxiliary air inlet and the main air inlet in the same direction, the structure of the range hood can be simplified, and the influence of the structure of the range hood on the cooking process is reduced. Further, by setting the lifting main body and the opening and closing piece in transmission connection through the transmission piece, the movement of the lifting main body and the opening and closing piece can be linked, so that the process of opening and closing the main air inlet by the lifting main body and the process of opening and closing the auxiliary air inlet by the opening and closing piece are matched, and the motion control of the range hood is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of an embodiment of the range hood of the present application;

[0024] Figure 2 is a structural schematic diagram of the range hood shown in the figure; Figure 1

[0025] Figure 3 is a structural schematic diagram of the range hood shown in the figure; Figure 1

[0026] Figure 4 Figure 2 is an internal structural schematic diagram of the smoke collecting assembly shown in the figure;

[0027] Figure 5 is a partial sectional view of an embodiment of the smoke collecting assembly in the range hood shown in the figure in the open state; Figure 1

[0028] Figure 6 is a partial sectional view of an embodiment of the smoke collecting assembly in the range hood shown in the figure in the closed state; Figure 1

[0029] Figure 7 is a partial structural schematic diagram of the smoke collecting assembly from another angle; Figure 5

[0030] Figure 8 is a partial structural schematic diagram of the smoke collecting assembly from another angle; Figure 6

[0031] Figure 9 Figure 1 ​​​​​​​​Partial sectional view of another embodiment of the smoke collecting assembly in the smoke machine shown in the open state;

[0032] Figure 10 is Figure 1 Partial sectional view of another embodiment of the smoke collecting assembly in the smoke machine shown in the closed state;

[0033] Figure 11 is Figure 9 Partial structural schematic view of the smoke collecting assembly from another angle;

[0034] Figure 12 is Figure 10 Partial structural schematic view of the smoke collecting assembly from another angle;

[0035] Figure 13 is Figure 1 Schematic view of the smoke collecting assembly when the pushing member is not assembled with the opening and closing member;

[0036] Figure 14 is Figure 13 Structural schematic view of the smoke collecting assembly from another angle;

[0037] Figure 15 is Figure 13 Structural schematic view of the pushing member. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] In combination with Figure 1 The present application provides a smoke machine 1. The smoke machine 1 comprises a frame 10, a smoke collecting assembly 20 and an opening and closing member 30. The smoke machine 1 can be installed on a wall or the like installation position through the frame 10. The smoke machine 1 has an installation surface, for example, in the case where the smoke machine 1 is installed on a wall, the surface of the wall is the installation surface of the smoke machine 1. The frame 10 is provided with an air outlet (not shown in the figure), which can be connected with an external flue through a pipeline. The frame 10 is further provided with a volute, and the volute is provided with a centrifugal fan. The volute can be in communication with the inside of the smoke collecting assembly 20, and the convection generated by the rotation of the centrifugal fan can drive the gas in the smoke collecting assembly 20 to the air outlet for discharge.

[0040] In combination with Figure 2 and Figure 3The smoke collecting assembly 20 is installed on the rack 10, and the smoke collecting assembly 20 is capable of collecting smoke and then discharging the smoke through the rack 10. The smoke collecting assembly 20 comprises a smoke collecting body 21 and a lifting body 22, and the lifting body 22 is movably installed on the smoke collecting body 21. The lifting body 22 is capable of forming a main air inlet 201 together with the smoke collecting body 21. An opening and closing member 30 is movably installed on the smoke collecting body 21. The smoke collecting body 21 is further provided with a secondary air inlet 211, and the opening and closing member 30 is movably installed on the smoke collecting body 21 and is correspondingly arranged with the secondary air inlet 211. The lifting body 22 is movable relative to the smoke collecting body 21, so as to open or close the main air inlet 201. The opening and closing member 30 is movable relative to the smoke collecting body 21, so as to open or close the secondary air inlet 211. The main air inlet 201 and the secondary air inlet 211 can be matched with each other, and respectively suck smoke at different positions, so as to improve the smoke suction effect of the range hood 1. The lifting body 22 is movable to close the main air inlet 201, and the opening and closing member 30 is movable to close the secondary air inlet 211, so as to further improve the appearance of the range hood 1 in the closed state. The range hood 1 has an open state and a closed state. In the open state, the main air inlet 201 and the secondary air inlet 211 are open. In the closed state, the main air inlet 201 and the secondary air inlet 211 are closed.

[0041] In some embodiments, in combination Figure 2 The main air inlet 201 and the secondary air inlet 211 are oriented towards the same direction. For example, the main air inlet 201 and the secondary air inlet 211 can both be oriented towards the installation surface (for example, a wall) away from the range hood 1 to suck smoke. The range hood 1 can be arranged on the side of the cooktop to suck oil fume, so as to leave out the space above the cooktop. In this way, the main air inlet 201 and the secondary air inlet 211 are not too far away from the cooktop, so as to reduce the possibility of reducing the smoke suction effect.

[0042] In some other embodiments, the main air inlet 201 and the secondary air inlet 211 can also be arranged in the direction away from the rack 10, so as to leave out the space on the side close to the installation surface of the range hood 1. Alternatively, the planes where the main air inlet 201 and the secondary air inlet 211 are located can also be arranged at an angle relative to the installation surface of the range hood 1. In this way, the range hood 1 can reduce the restriction on the cooking space caused by the arrangement of the range hood 1, and reduce the safety hazards caused by the too small cooking space.

[0043] In some embodiments, the range hood 1 has a front side and a back side, the back side of the range hood 1 can abut against a wall or a mounting surface, and the main air inlet 201 and the auxiliary air inlet 211 both face the front side. When the range hood 1 is in an open state, the smoke collection body 21 is arranged between the machine frame 10 and the lifting body 22, and the main air inlet 201 is farther away from the machine frame 10 than the auxiliary air inlet 211. In this way, the main air inlet 201 is closer to the cooking appliance and can quickly suck most of the cooking oil fume. The auxiliary air inlet 211 is farther away from the cooking appliance than the main air inlet 201, and can suck the cooking oil fume that cannot be completely sucked by the main air inlet 201. In this way, the cooking oil fume generated during cooking can be sucked in a zoned manner, and the smoke suction effect of the range hood 1 is improved.

[0044] In some embodiments, when the range hood 1 is in an open state, the lifting body 22 moves away from the smoke collection body 21 to open the main air inlet 201, and the opening and closing member 30 moves away from the auxiliary air inlet 211 to open the auxiliary air inlet 211. When the range hood 1 is in a closed state, the lifting body 22 moves close to the smoke collection body 21 to close the main air inlet 201, and the opening and closing member 30 moves close to the auxiliary air inlet 211 to close the auxiliary air inlet 211.

[0045] In some embodiments, the smoke collection body 21 includes a rear plate, a front plate arranged at intervals, and a plurality of side plates connecting the front plate and the rear plate, and the auxiliary air inlet 211 is arranged on a side of the front plate away from the lifting body 22, and the lifting body 22 can be accommodated between the front plate and the rear plate.

[0046] In some embodiments, the front plate, the side plates, and the rear plate surround the smoke collection body 21 to form a rectangular parallelepiped shape. The thickness of the side plates in the interval direction between the front plate and the rear plate is maintained at a predetermined value. And / or the range hood 1 has a mounting surface parallel to the rear plate and the front plate, and the distance between each part of the front plate and the mounting surface is equal. In other words, the smoke collection body 21 of the present application has a uniform thickness, thereby reducing the occupation of the cooking space by the smoke collection body 21. Optionally, the thickness of the machine frame 10 in the direction away from the mounting surface is greater than the thickness of the smoke collection body 21 in the direction away from the mounting surface. Optionally, the distance between the front plate and the rear plate is maintained at a predetermined value. It should be noted that the front plate, the rear plate, or the side plate may, in consideration of strength and assembly during manufacturing, be subjected to sheet metal processing, resulting in some protrusions or depressions, and the aforementioned distance measurement can take the plane where the largest area of the plate material is located as the reference.

[0047] In some embodiments, the range hood 1 has a first direction, a second direction, and a third direction that are orthogonal to each other. The interval direction between the machine frame 10 and the smoke collection body 21 is the second direction, the direction in which the main air inlet 201 and the auxiliary air inlet 211 face is the third direction, and the rotation axis of the opening and closing member 30 relative to the smoke collection body 21 is the first direction. In the case where the range hood 1 is installed, the second direction can be the direction of gravity, the third direction can be the direction away from the wall, and the first direction can be the horizontal direction.

[0048] The opening process of the range hood 1 needs the movable lifting main body 22 and the opening and closing piece 30 to open the main air inlet 201 and the auxiliary air inlet 211. The closing process of the range hood 1 needs the movable lifting main body 22 and the opening and closing piece 30 to close the main air inlet 201 and the auxiliary air inlet 211. Due to the limited space inside the range hood 1, driving the opening and closing piece 30 and the lifting main body 22 to move by different driving devices not only occupies a large amount of space, but also has great difficulty in synchronizing the movement of the lifting main body 22 and the opening and closing piece 30.

[0049] In combination Figure 4 In order to improve the above technical problems, the range hood 1 provided by the embodiment of the present application is driven and connected by the transmission mechanism 40. In this way, one of the opening and closing piece 30 and the lifting main body 22 can be driven by one driving device 70 to drive the movement of the lifting main body 22 and the opening and closing piece 30. And the movement of the lifting main body 22 and the opening and closing piece 30 also has good synchronization, which can open or close the main air inlet 201 and the auxiliary air inlet 211 at the same time. Through the above-mentioned manner, the movement control of the range hood 1 can be optimized.

[0050] In some embodiments, the range hood 1 includes a driving device 70, which is drivingly connected with the lifting main body 22. The driving device 70 drives the opening and closing piece 30 to move through the lifting main body 22 and the transmission mechanism 40. In other words, during the opening and closing process of the range hood 1, the lifting main body 22 is the driving part and the opening and closing piece 30 is the driven part. Since the lifting main body 22 has a larger volume than the opening and closing piece 30, the lifting main body 22 needs a larger driving force than the opening and closing piece 30. The driving device 70 is directly drivingly connected with the lifting main body 22, which can make the lifting main body 22 have enough driving force to move. The driving force required by the opening and closing piece 30 is smaller than that required by the lifting main body 22, and there is also energy loss in the transmission process of the transmission mechanism 40. Therefore, by setting the lifting main body 22 as the driving part and the opening and closing piece 30 as the driven part, the driving force required by the movement between the components can be matched with the driving device 70 and the transmission mechanism 40, further optimizing the movement control of the range hood 1.

[0051] In combination Figures 4 to 8 In some embodiments, the transmission mechanism 40 includes a sliding block 41, a connecting rod mechanism 42 and a pushing piece 43. The sliding block 41 is fixedly connected with the lifting main body 22, slidingly connected with the smoke collection main body 21, and hingedly connected with the connecting rod mechanism 42. The lifting main body 22 is slidingly connected with the smoke collection main body 21. The pushing piece 43 is fixedly connected with the opening and closing piece 30 and hingedly connected with the connecting rod mechanism 42. The opening and closing piece 30 is hingedly connected with the smoke collection main body 21. In this way, during the lifting process of the lifting main body 22, the connecting rod mechanism 42 and the pushing piece 43 are driven to drive the opening and closing piece 30 to rotate.

[0052] In some embodiments, the direction of the rotation axis of the opening and closing member 30 relative to the rotation of the smoke collection main body 21, the direction of the rotation axis of the pushing member 43 relative to the rotation of the linkage mechanism 42, and the direction of the rotation axis of the sliding block 41 relative to the rotation of the linkage mechanism 42 are parallel to the first direction. In this way, the movement of the components of the transmission mechanism 40 can occupy less space in the first direction, reducing the impact on the interior of the smoke collection main body 21 and reducing the impact of the transmission mechanism 40 on the airflow and the possibility of noise generated by the interaction of the transmission mechanism 40 with the airflow.

[0053] In some embodiments, the transmission mechanism 40 has a first state and a second state. When the transmission mechanism 40 is in the first state, the extractor 1 is in an open state. When the transmission mechanism 40 is in the second state, the extractor 1 is in a closed state. The transmission mechanism 40 can be switched between the first state and the second state by the movement of the opening and closing member 30 or the lifting main body 22.

[0054] In some embodiments, when the transmission mechanism 40 is in the first state, the angle between the linkage mechanism 42 and the second direction is smaller than the angle between the linkage mechanism 42 and the second direction when the transmission mechanism 40 is in the second state.

[0055] In some embodiments, the sliding block 41 includes a sliding portion 411 and an extension portion 412 fixedly connected. The sliding portion 411 is slidingly connected to the smoke collection main body 21, and the extension portion 412 extends obliquely from the sliding portion 411 towards the front side in the direction towards the rack 10. In this way, the extension portion 412 can have sufficient length to connect to the linkage mechanism 42 even if the space in the smoke collection main body 21 is limited.

[0056] In some embodiments, the linkage mechanism 42 extends from the sliding block 41 towards the rear side in the direction towards the rack 10 when the transmission mechanism 40 is in the first state and the second state. In this way, the linkage mechanism 42 can have sufficient length to connect to the linkage mechanism 42 even if the space in the smoke collection main body 21 is limited.

[0057] In some embodiments, the pushing member 43 extends obliquely from the linkage mechanism 42 towards the front side in the direction towards the rack 10 at least when the transmission mechanism 40 is in the first state. Alternatively, the pushing member 43 extends obliquely from the linkage mechanism 42 towards the front side in the direction towards the rack 10 when the transmission mechanism 40 is in the second state. In this way, the pushing member 43 can be accommodated in the smoke collection main body 21, reducing the problem of incomplete closure of the opening and closing member 30 due to the inability to accommodate the pushing member 43.

[0058] In summary, since the space inside the smoke collection main body 21 in the third direction is limited, and the lifting main body 22 and the opening and closing member 30 are at a certain distance in the second direction, each component of the transmission mechanism 40 needs to have sufficient length, and the length of each component of the transmission mechanism 40 in the third direction cannot exceed the smoke collection main body 21. Based on this situation, each component of the transmission mechanism 40 can be arranged to extend obliquely relative to the second direction, which can enable the transmission mechanism 40 to drive connect the opening and closing member 30 and the lifting main body 22 in a limited space, and does not affect the accommodation of the pushing member 43 when the opening and closing member 30 is closed.

[0059] In some embodiments, the sliding block 41 and the connecting rod mechanism 42 are arranged in the smoke collection main body 21, and the smoke collection main body 21 is provided with an opening 212 (combined with Figure 13 The pushing member 43 is connected with the opening and closing member 30 outside the smoke collection main body 21 through the opening 212.

[0060] Combined with Figures 9 to 12 In some embodiments, the smoke machine 1 further comprises a limiting member 50, which is arranged relative to the lifting main body 22 and movably cooperates with the smoke collection main body 21. The smoke machine 1 further comprises a pushing member 43 capable of pushing the opening and closing member 30 to close or open. During the closing process of the smoke machine 1, the limiting member 50 can abut against the pushing member 43 to close the opening and closing member 30.

[0061] Specifically, in the present embodiment, the lifting main body 22 can be drivingly connected with the opening and closing member 30 through the transmission mechanism 40, or the lifting main body 22 can be not connected with the opening and closing member 30. The lifting main body 22 and the opening and closing member 30 can also be driven to open and close separately through respective driving mechanisms, or the lifting main body 22 and the opening and closing member 30 can be manually opened or closed, which is not limited here. During the closing process of the smoke machine 1, the limiting member 50 can abut against the pushing member 43, so that during the closing process of the smoke machine 1, the limiting member 50 can promote the closing of the opening and closing member 30, to increase the synchronization degree of the closing of the lifting main body 22 and the closing of the opening and closing member 30 during the closing process of the smoke machine 1, and reduce the possibility of the opening and closing member 30 not being closed in place.

[0062] Combined with the foregoing embodiments, the lifting main body 22 and the opening and closing member 30 can be drivingly connected through the transmission mechanism 40. During the process that the transmission mechanism 40 moves from the first state to the second state, the limiting member 50 abuts against the pushing member 43, and during the process that the transmission mechanism 40 moves from the second state to the first state, the limiting member 50 is separated from the pushing member 43.

[0063] Specifically, although the lifting body 22 and the opening and closing member 30 are drivenly connected through the transmission mechanism 40, the activities of the lifting body 22 and the opening and closing member 30 are already linked. However, in the actual transmission process, when the range hood 1 is closed, each component in the transmission mechanism 40 will be subjected to more compressive stress due to the change in angle. Each component may have the problem of insufficient rigidity or stability, that is, the transmission mechanism 40 is more prone to deformation during the closing process of the range hood 1. If the transmission mechanism 40 is deformed, it may cause the lifting body 22 to form to be unable to be completely transmitted to the opening and closing member 30 through the transmission mechanism 40, and the lifting body 22 may move to the end of the stroke, but the opening and closing member 30 does not move to the end of the stroke (that is, the opening and closing member 30 does not close to the position).

[0064] In order to improve this situation, the embodiment of the present application can set the abutting mode of the limiting member 50 and the pushing member 43 to improve the closing condition of the opening and closing member 30. The limiting member 50 is different from the transmission mechanism 40, and the length of the limiting member 50 can be set to be shorter, for example, it can be a limiting block or a limiting protrusion, and the limiting member 50 has sufficient rigidity and stability. The limiting member 50 can directly abut against the pushing member 43 to promote the closing of the opening and closing member 30, and at least improve the technical problem of the opening and closing member 30 not closing to the position caused by the deformation of the connecting rod mechanism 42.

[0065] Further, in the case that the range hood 1 is closed, the pushing member 43 can limit the limiting member 50. The activity of the opening and closing member 30 in the direction towards the auxiliary air inlet 211 is limited by the smoke collecting body 21, and the activity of the limiting member 50 towards the rack 10 can be limited by the pushing member 43. The activity of the opening and closing member 30 in the direction away from the auxiliary air inlet 211 is limited by the limiting member 50 and the pushing member 43.

[0066] On the one hand, the activity of the opening and closing member 30 in the direction towards the auxiliary air inlet 211 is limited by the smoke collecting body 21, so that the pushing member 43 cannot rotate further towards the rack 10, and the activity of the limiting member 50 towards the rack 10 can be limited by the pushing member 43. After the activity of the limiting member 50 towards the rack 10 is limited by the pushing member 43, a limiting force can be generated, and the limiting force can be transmitted to the driving device 70 through the sliding block 41 and the lifting body 22, so that the driving device 70 can determine that the closing of the range hood 1 is in place by sensing the limiting force, and then the driving device 70 is closed. On the other hand, after the driving device 70 is closed, the activity of the lifting body 22 can be limited, thereby at least limiting the limiting member 50 away from the pushing member 43. In this case, the activity of the opening and closing member 30 away from the auxiliary air inlet 211 can be limited by the pushing member 43 and the limiting member 50, and the opening of the opening and closing member 30 in this case can be avoided.

[0067] In some embodiments, the limiting piece 50 is mounted on the sliding block 41, and the limiting piece 50 comprises a fixing part 51 and a limiting part 52. The fixing part 51 is fixedly connected with the sliding block 41, and the limiting part 52 is arranged in a spaced manner with the sliding block 41. The normal projection of the fixing part 51 falls completely within the surface of the sliding block 41. In this way, the protrusion of the fixing part 51 relative to the sliding block 41 can be reduced, thereby reducing the influence of the arrangement of the fixing part 51 on the internal structure of the smoke collecting main body 21, reducing the influence of the fixing part 51 on the smoke exhaust, and reducing the generation of vortex and noise. The limiting part 52 is arranged in a spaced manner with the sliding block 41, which can provide space for the articulation of the sliding block 41 and the connecting rod mechanism 42, and facilitate the corresponding of the limiting part 52 and the pushing piece 43, and facilitate the abutment of the limiting part 52 and the pushing piece 43.

[0068] In some embodiments, the limiting piece 50 is arranged on one side of the sliding block 41 in the first direction. The pushing piece 43 comprises a connecting part 431 and a pushing part 432 connected with each other. The connecting part 431 is articulated with the connecting rod mechanism 42, and the pushing part 432 is fixedly connected with the opening and closing piece 30. The pushing part 432 is located on one side of the connecting part 431 in the first direction, at least part of the limiting piece 50 and the pushing part 432 are located on the same side of the connecting rod mechanism 42, and the limiting piece 50 can abut against the pushing part 432 during the closing process of the smoke machine 1. In the above manner, the pushing part 432 and the limiting part 52 can be biased to the same side compared with the connecting rod mechanism 42, the position of the pushing part 432 and the position of the limiting part 52 can be matched, and the mutual interference between the movement process of the connecting rod mechanism 42 and the abutment process of the limiting piece 50 and the pushing piece 43 can be reduced. Further, the limiting piece 50 can be arranged on the side of the sliding block 41 away from the middle part of the smoke collecting main body 21 in the first direction, and the pushing part 432 can be arranged on the side of the connecting part 431 away from the middle part of the smoke collecting main body 21 in the first direction. In this way, the limiting part 52 and the pushing part 432 can be arranged on the outer side compared with the smoke collecting main body 21, so as to reduce the influence of the arrangement of the limiting part 52 and the pushing part 432 on the airflow movement in the smoke collecting main body 21.

[0069] In some embodiments, the slider 41, the limiting piece 50 and the linkage 42 are arranged in the smoke collection main body 21, the smoke collection main body 21 is provided with an opening 212, the pushing piece 43 passes through the opening 212 and is connected with the opening and closing piece 30 outside the smoke collection main body 21. The part of the pushing piece 43 for abutting against the limiting piece 50 is located at the end of the pushing piece 43 close to the opening and closing piece 30, and the part of the pushing piece 43 for abutting against the limiting piece 50 is located in the smoke collection main body 21 when the smoke machine 1 is closed. Further improvement is made to the abutting position, which can further reduce the problem of incomplete closing of the opening and closing piece 30 caused by deformation of the limiting piece 50 and the pushing piece 43 during abutting. Specifically, the part of the pushing piece 43 for abutting against the limiting piece 50 is located at the end of the pushing piece 43 close to the opening and closing piece 30, so that the force arm distance between the pushing piece 43 and the limiting piece 50 is short during abutting of the limiting piece 50 and the pushing piece 43, and the torque generated is small, so that the pushing piece 43 is not easy to deform.

[0070] In some embodiments, the pushing piece 43 comprises a connecting part 431 and a pushing part 432 connected with each other, the connecting part 431 is hinged with the linkage 42, and the pushing part 432 is fixedly connected with the opening and closing piece 30. The side of the pushing part 432 close to the limiting piece 50 comprises an arc segment 4321 and an abutting segment 4322 connected with each other (in combination with Figure 14 and 15 ), the arc segment 4321 is located at the side of the abutting segment 4322 away from the opening and closing piece 30, and the abutting segment 4322 is used for abutting against the limiting piece 50. The opening and closing piece 30 is rotationally connected with the smoke collection main body 21, but the pushing piece 43 is fixedly connected with the opening and closing piece 30, and the pushing piece 43 is also rotationally connected with the smoke collection main body 21. In order to reduce the interference between the pushing piece 43 and the smoke collection main body 21, the side of the pushing part 432 close to the limiting piece 50 can be provided with the arc segment 4321, the arc segment 4321 can cooperate with the rotation of the pushing piece 43, so that the distance between the pushing piece 43 and the smoke collection main body 21 has a small change during the movement of the pushing piece 43, thereby reducing the interference.

[0071] Optionally, the center of the arc segment 4321 is located at the rotation axis of the relative rotation between the opening and closing piece 30 and the smoke collection main body 21. Further in order to facilitate the abutting of the limiting piece 50 and the pushing piece 43, the part of the pushing piece 43 close to the opening and closing piece 30 is provided with the abutting segment 4322, so as to facilitate the abutting of the limiting piece 50 and the pushing piece 43. Optionally, the abutting segment 4322 is a straight line segment, the abutting segment 4322 has an abutting plane, and can form a plane abutting with the limiting piece 50.

[0072] In combination with Figures 13 to 15In some embodiments, the smoke machine 1 comprises a pushing member 43. The pushing member 43 is capable of pushing the opening and closing member 30 to open or close. The pushing member 43 can be drivingly connected with the lifting body 22 through the connecting rod mechanism 42 and the sliding block 41 in the aforementioned embodiments. The pushing member 43 can also be drivingly connected with the opening and closing member 30 through a separate driving mechanism. The pushing member 43 can also be dampingly fitted with the smoke collecting body 21, which is not specifically limited herein. At least one side of the pushing member 43 is provided with a buckling part 60, and the pushing member 43 is selectively buckled with the smoke collecting body 21 through the buckling part 60. When the pushing member 43 is buckled with the smoke collecting body 21, at least part of the pushing member 43 is located outside the smoke collecting body 21.

[0073] Specifically, the smoke machine 1 needs to be fixed and assembled with the pushing member 43 and the opening and closing member 30 during assembly. However, before the pushing member 43 and the opening and closing member 30 are assembled, the pushing member 43 is prone to fall into the inside of the smoke collecting body 21 due to the lack of limiting by the opening and closing member 30, which brings inconvenience to the assembly work. One side of the pushing member 43 is provided with the buckling part 60, which can make the pushing member 43 buckled on the smoke collecting body 21 before the assembly of the pushing member 43 and the opening and closing member 30 is completed, so as to avoid the pushing member 43 from falling into the inside of the smoke collecting body 21. After the assembly of the pushing member 43 and the opening and closing member 30 is completed, the buckling of the buckling part 60 with the smoke collecting body 21 can be cancelled, and the pushing member 43 can normally drive the opening and closing member 30 to open or close.

[0074] In some embodiments, the smoke collecting body 21 is provided with a buckling part for cooperating with the buckling part 60. The pushing member 43 is at least cooperated with the buckling part when the opening and closing member 30 is separated from the pushing member 43, so as to limit the pushing member 43 from entering the inside of the smoke collecting body 21. The buckling part can be a buckling groove, a buckling hole or a buckling hook, which is not specifically limited herein.

[0075] In some embodiments, the buckle portion 60 is arranged on the side of the pusher 43 close to the rotation axis of the opening and closing member 30 and the smoke collecting main body 21. The opening and closing member 30 is rotationally connected with the smoke collecting main body 21, and the pusher 43 is fixedly connected with the opening and closing member 30, so the pusher 43 is also rotationally connected with the smoke collecting main body 21. During rotation, the arrangement of the buckle portion 60 is prone to interfere with the smoke collecting main body 21. In order to solve this technical problem, the buckle portion 60 can be arranged on the side of the pusher 43 close to the rotation axis of the opening and closing member 30 and the smoke collecting main body 21. Since the stroke of the side of the pusher 43 close to the rotation axis of the opening and closing member 30 and the smoke collecting main body 21 is short during rotation, through the foregoing manner, the buckle portion 60 has a small movement during the movement of the pusher 43, and the possibility of interference with the smoke collecting main body 21 is reduced. Furthermore, at least part of the side of the pusher 43 away from the rotation axis of the opening and closing member 30 and the smoke collecting main body 21 is arranged in an arc shape. In this way, the possibility of interference between the pusher 43 and the smoke collecting main body 21 can be further reduced. In other embodiments, the buckle portion 60 is arranged on at least one side of the pusher 43 in the direction of the rotation axis of the opening and closing member 30 and the smoke collecting main body 21.

[0076] In some embodiments, the smoke collecting main body 21 is provided with an opening 212 for the pusher 43 to pass through, and a clamping portion is arranged on the portion of the smoke collecting main body 21 corresponding to the end of the opening 212 close to the rotation axis of the opening and closing member 30 and the smoke collecting main body 21. Since the pusher 43 is connected with the lifting main body 22 through the connecting rod mechanism 42 and the sliding block 41, even if the pusher 43 is not assembled with the opening and closing member 30, the part of the smoke collecting main body 21 that can be pulled out by the pusher 43 is limited. Through the foregoing manner, the position at which the pusher 43 is clamped can be close to the position of the pusher 43 after the opening and closing member 30 is assembled and opened, so as to solve the problem that the part of the pusher 43 that can move is small. On this basis, since the position of the pusher 43 before and after assembly with the opening and closing member 30 is similar, the assembly of the opening and closing member 30 and the pusher 43 can also be performed when the pusher 43 is clamped on the smoke collecting main body 21, which can further facilitate the assembly of the pusher 43 and the opening and closing member 30.

[0077] In combination Figure 13In some embodiments, the opening 212 includes a first portion 2121 and a second portion 2122 which are in communication with each other, and the first portion 2121 is used for the movement of the push member 43. The first portion 2121 of the opening 212 can be used for the movement of the push member 43 before and after the assembly of the push member 43 and the opening and closing member 30. The second portion 2122 is arranged in correspondence with the clamping portion arranged on the smoke collection main body 21, and the second portion 2122 is used for the passage of the buckling portion 60. The second portion 2122 of the opening 212 can correspond to the side plate or the rear plate of the smoke collection main body 21, and before the assembly of the push member 43 and the opening and closing member 30, the buckling portion 60 can be clamped with the clamping portion through the second portion 2122 of the opening 212. After the assembly of the push member 43 and the opening and closing member 30, the second portion 2122 of the opening 212 is no longer matched with the buckling portion 60. In other words, the second portion 2122 of the opening 212 can expose the clamping portion, which can facilitate the clamping of the buckling portion 60 with the clamping portion, and can also facilitate the unclamping of the buckling portion 60 with the clamping portion.

[0078] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A range hood, characterized by, The smoke machine comprises: a rack; a smoke collecting assembly mounted on the rack, the smoke collecting assembly comprising a smoke collecting body and a lifting body, the lifting body being movably mounted on the smoke collecting body; an opening and closing member movably mounted on the smoke collecting body; wherein the lifting body and the smoke collecting body form a main air inlet, the smoke collecting body is further provided with an auxiliary air inlet, the opening and closing member is provided corresponding to the auxiliary air inlet, the main air inlet and the auxiliary air inlet are in the same direction, and the opening and closing member and the lifting body are connected through a transmission mechanism.

2. The smoke machine according to claim 1, wherein: the smoke machine has an open state and a closed state; when the smoke machine is in the open state, the lifting body moves away from the smoke collecting body to open the main air inlet, and the opening and closing member moves away from the auxiliary air inlet to open the auxiliary air inlet; when the smoke machine is in the closed state, the lifting body moves towards the smoke collecting body to close the main air inlet, and the opening and closing member moves towards the auxiliary air inlet to close the auxiliary air inlet.

3. The smoke machine according to claim 1 or 2, wherein: the transmission mechanism comprises a sliding block, a connecting rod mechanism and a pushing member; the sliding block is fixedly connected with the lifting body, slidably connected with the smoke collecting body, and hingedly connected with the connecting rod mechanism; the pushing member is fixedly connected with the opening and closing member, and hingedly connected with the connecting rod mechanism; and the opening and closing member is hingedly connected with the smoke collecting body.

4. The smoke machine according to claim 3, wherein: the transmission mechanism has a first state and a second state, when the transmission mechanism is in the first state, the smoke machine is in the open state, and when the transmission mechanism is in the second state, the smoke machine is in the closed state; and the transmission mechanism can be switched between the first state and the second state through the movement of the opening and closing member or the lifting body.

5. The smoke machine according to claim 4, wherein: the smoke machine has a front side and a back side, the main air inlet and the auxiliary air inlet are both directed to the front side; when the smoke machine is in the open state, the smoke collecting body is arranged between the rack and the lifting body, and the main air inlet is farther away from the rack than the auxiliary air inlet.

6. The smoke machine according to claim 5, wherein: the sliding block comprises a sliding part and an extension part fixedly connected, the sliding part is slidably connected with the smoke collecting body, and the extension part is inclinedly extended from the sliding part towards the front side in a direction towards the rack.

7. The smoke machine according to claim 5, wherein: in the first state and the second state of the transmission mechanism, the connecting rod mechanism is extended from the sliding block towards the back side in a direction towards the rack.

8. The smoke machine according to claim 5, wherein: at least in the first state of the transmission mechanism, the pushing member is extended from the connecting rod mechanism towards the front side in a direction towards the rack.

9. The smoke machine according to claim 3, wherein: The slider and the linkage mechanism are arranged in the smoke collecting body, the smoke collecting body is provided with an opening, the pusher passes through the opening and is connected with an opening and closing member outside the smoke collecting body.

10. The extractor hood according to claim 1 or 2, characterized in that: The extractor hood further comprises a driving device fixed to the smoke collecting body and drivingly connected with the lifting body.

11. The extractor hood according to claim 4, characterized in that: The transmission mechanism further comprises a limiting member fixedly arranged opposite to the lifting body and slidingly connected with the smoke collecting body. During the process that the transmission mechanism is moved from the first state to the second state, the limiting member abuts against the pusher, and during the process that the transmission mechanism is moved from the second state to the first state, the limiting member is separated from the pusher.

12. The extractor hood according to claim 4, characterized in that: The pusher has a buckle portion, the pusher is selectively buckled with the smoke collecting body through the buckle portion, and at least part of the pusher is located outside the smoke collecting body when the pusher is buckled with the smoke collecting body.

13. The extractor hood according to claim 1, characterized in that: The smoke collecting body comprises a rear plate and a front plate arranged at intervals and a plurality of side plates connecting the front plate and the rear plate, the auxiliary air inlet is arranged on the side of the front plate away from the lifting body, and the lifting body can be accommodated between the front plate and the rear plate; The front plate, the side plates and the rear plate surround the smoke collecting body to form a cuboid shape; And / or, the extractor hood has a mounting surface parallel to the rear plate and the front plate, and distances between each part of the front plate and the mounting surface are equal.

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