Range hood

Abstract

The utility model discloses a range hood. The range hood comprises a rack, a smoke collecting assembly, an opening and closing piece and a pushing piece. The smoke collecting assembly is mounted on the rack and comprises a smoke collecting main body; an auxiliary air inlet is formed in the smoke collecting main body. The opening and closing piece is movably mounted on the smoke collecting main body; the opening and closing piece corresponds to the auxiliary air inlet. The pushing piece is connected with the opening and closing piece and used for driving the opening and closing piece to be opened or closed. Wherein at least one side of the pushing part is provided with a buckling part, the pushing part is selectively clamped with the smoke collecting main body through the buckling part, and under the condition that the pushing part is clamped with the smoke collecting main body, at least part of the pushing part is located outside the smoke collecting main body. In this way, the range hood can be conveniently assembled.

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 oil fume and gas generated in the cooking process. In the related art, the range hood drives the opening or closing of parts through various transmission mechanisms or connecting rod mechanisms. The transmission mechanism or connecting rod mechanism needs to be connected to the corresponding parts. However, during the assembly of the range hood, the transmission mechanism or connecting rod mechanism is easy to fall into the range hood, which brings difficulties to the assembly. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a range hood, which can facilitate the assembly of the range hood.

[0004] Embodiments of the present application provide a range hood. The range hood comprises a rack, a smoke collecting assembly, an opening and closing piece, and a pushing piece. The smoke collecting assembly is installed on the rack, and the smoke collecting assembly comprises a smoke collecting main body. The smoke collecting main body is provided with an auxiliary air inlet. The opening and closing piece is movably installed on the smoke collecting main body, and the opening and closing piece is arranged corresponding to the auxiliary air inlet. The pushing piece is connected with the opening and closing piece, and is used for driving the opening and closing piece to open or close. At least one side of the pushing piece is provided with a buckle part, the pushing piece is selectively buckled with the smoke collecting main body through the buckle part, and at least part of the pushing piece is located outside the smoke collecting main body when the pushing piece is buckled with the smoke collecting main body.

[0005] Optionally, the smoke collecting main body is provided with a buckling part for cooperating with the buckle part; and the pushing piece cooperates with the buckling part at least when the opening and closing piece is separated from the smoke collecting main body, so as to limit the pushing piece from entering the inside of the smoke collecting main body.

[0006] Optionally, the buckle part is arranged on the side of the pushing piece close to the relative rotation axis between the opening and closing piece and the smoke collecting main body, and at least part of the side of the pushing piece away from the relative rotation axis between the opening and closing piece and the smoke collecting main body is arranged in an arc shape.

[0007] Optionally, the smoke collecting main body is provided with an opening for the pushing piece to pass through, and the smoke collecting main body is provided with a buckling part corresponding to the end of the opening close to the relative rotation axis between the opening and closing piece and the smoke collecting main body.

[0008] Optionally, the opening comprises a first part and a second part which are in communication with each other, the first part is used for the movement of the pushing piece, and the second part is arranged corresponding to the buckling part arranged on the smoke collecting main body, and the second part is used for the buckle part to pass through.

[0009] Optionally, the buckle part is arranged on at least one side of the pushing piece in the direction of the relative rotation axis between the opening and closing piece and the smoke collecting main body.

[0010] Optionally, the smoke collection assembly further comprises a lifting main body movably mounted to the smoke collection main body, and the lifting main body is capable of forming the main air inlet together with the smoke collection main body.

[0011] Optionally, the main air inlet and the auxiliary air inlet are oriented in the same direction.

[0012] The smoke collection main 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 formed on a side of the front plate away from the lifting main body, and the lifting main body can be accommodated between the front plate and the rear plate.

[0013] The front plate, the side plates and the rear plate surround the smoke collection main body to form a cuboid shape.

[0014] And / or, the range hood has a mounting plane parallel to the rear plate and the front plate, and the distances from the front plate to the mounting plane are equal.

[0015] Optionally, the lifting main body is drivingly connected to the opening and closing piece through a transmission mechanism, the transmission mechanism comprises a sliding block, a connecting rod mechanism and a pushing piece; the sliding block is fixedly connected to the lifting main body and slidably connected to the smoke collection main body, and is hingedly connected to the connecting rod mechanism; the pushing piece is fixedly connected to the opening and closing piece and hingedly connected to the connecting rod mechanism; and the opening and closing piece is hingedly connected to the smoke collection main body.

[0016] Optionally, the range hood further comprises a driving device drivingly connected to the lifting main body; the driving device drives the opening and closing piece to move through the lifting main body and the transmission mechanism.

[0017] The beneficial effects of the present application are as follows: Different from the prior art, the main air inlet is formed by the cooperation of the lifting main body and the smoke collection main body. The main air inlet can be used for the entry of most of the gas, which is then removed through the rack. The lifting main body can open or close the main air inlet, and can improve the appearance of the range hood. The auxiliary air inlet formed in the smoke collection main body can be used for the suction of the gas that does not enter the main air inlet. The opening and closing piece can be used for opening or closing the auxiliary air inlet. When the opening and closing piece is opened, the opening and closing piece can also be used for guiding the flow of smoke to the auxiliary air inlet. The pushing piece can be used for pushing the opening and closing piece to open or close. Further, the buckle part provided on at least one side of the pushing piece can be buckled on the main body of the range hood before the pushing piece and the opening and closing piece are mounted, so as to reduce the possibility of the pushing piece falling into the smoke collection main body and facilitate the assembly of the pushing piece and the opening and closing piece. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of an embodiment of the range hood of the present application;

[0019] Figure 2 is Figure 1 a structural schematic view of the smoke collection assembly of the range hood shown in FIG. 4 when opened;

[0020] Figure 3 is Figure 1 is a structural schematic view of the smoke collecting assembly of the smoke machine in the closed condition;

[0021] Figure 4 is Figure 2 is a structural schematic view of the smoke collecting assembly from another angle;

[0022] Figure 5 is Figure 1 is a partial sectional view of an embodiment of the smoke collecting assembly in the smoke machine in the opened condition;

[0023] Figure 6 is Figure 1 is a partial sectional view of an embodiment of the smoke collecting assembly in the smoke machine in the closed condition;

[0024] Figure 7 is Figure 5 is a structural schematic view of the smoke collecting assembly from another angle;

[0025] Figure 8 is Figure 6 is a structural schematic view of the smoke collecting assembly from another angle;

[0026] Figure 9 is Figure 1 is a partial sectional view of another embodiment of the smoke collecting assembly in the smoke machine in the opened condition;

[0027] Figure 10 is Figure 1 is a partial sectional view of another embodiment of the smoke collecting assembly in the smoke machine in the closed condition;

[0028] Figure 11 is Figure 9 is a structural schematic view of the smoke collecting assembly from another angle;

[0029] Figure 12 is Figure 10 is a structural schematic view of the smoke collecting assembly from another angle;

[0030] Figure 13 is Figure 1 is a schematic view of the smoke collecting assembly when the pushing member is not assembled with the opening and closing member;

[0031] Figure 14 is Figure 13 is a structural schematic view of the smoke collecting assembly from another angle;

[0032] Figure 15 is Figure 13 is a structural schematic view of the pushing member. DETAILED DESCRIPTION

[0033] With reference to the drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0034] In combination Figure 1 , the present application provides a range hood 1. The range hood 1 comprises a frame 10, a smoke collecting assembly 20 and an opening and closing member 30. The range hood 1 can be installed on a wall or the like installation position through the frame 10. The range hood 1 has an installation surface, for example, in the case where the range hood 1 is installed on a wall, the surface of the wall is the installation surface of the range hood 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. A volute is further arranged in the frame 10, and a centrifugal fan wheel is arranged in the volute. 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 wheel can drive the gas in the smoke collecting assembly 20 to be discharged through the air outlet.

[0035] In combination Figure 2 and Figure 3 , the smoke collecting assembly 20 is installed on the frame 10, and the smoke collecting assembly 20 can collect flue gas and then discharge it through the frame 10. The smoke collecting assembly 20 comprises a smoke collecting main body 21 and a lifting main body 22, and the lifting main body 22 is movably installed on the smoke collecting main body 21. The lifting main body 22 can form a main air inlet 201 together with the smoke collecting main body 21. The opening and closing member 30 is movably installed on the smoke collecting main body 21. The smoke collecting main body 21 is further provided with an auxiliary air inlet 211, and the opening and closing member 30 is movably installed on the smoke collecting main body 21 and is arranged correspondingly to the auxiliary air inlet 211. The lifting main body 22 moves relative to the smoke collecting main body 21 to open or close the main air inlet 201. The opening and closing member 30 can move relative to the smoke collecting main body 21 to open or close the auxiliary air inlet 211. The main air inlet 201 and the auxiliary air inlet 211 can cooperate to respectively suck flue gas from different positions, so as to improve the oil fume suction effect of the range hood 1. The lifting main body 22 can further improve the aesthetic degree of the range hood 1 in the closed state by moving to close the main air inlet 201, and the opening and closing member 30 can further improve the aesthetic degree of the range hood 1 in the closed state by moving to close the auxiliary air inlet 211. The range hood 1 has an open state and a closed state. In the open state, the main air inlet 201 and the auxiliary air inlet 211 are open. In the closed state, the main air inlet 201 and the auxiliary air inlet 211 are closed.

[0036] In some embodiments, in combination Figure 2For example, the main air inlet 201 and the auxiliary air inlet 211 can both be directed away from the installation surface (e.g. a wall) of the range hood 1 to suck in the flue gas. The range hood 1 can be arranged to suck in the flue gas from the side of the cooking appliance, thereby leaving out the space above the cooking appliance. In this way, the main air inlet 201 and the auxiliary air inlet 211 are not too far away from the cooking appliance, thereby reducing the possibility of reducing the flue gas suction effect.

[0037] In some embodiments, the main air inlet 201 and the auxiliary air inlet 211 can be arranged to be directed away from the rack 10, thereby leaving out the space on the side of the installation surface of the range hood 1. Alternatively, the planes on which the main air inlet 201 and the auxiliary air inlet 211 are arranged can be arranged to be inclined 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, thereby reducing the safety hazard caused by the small cooking space.

[0038] In some embodiments, the range hood 1 has a front side and a rear side, and the rear side of the range hood 1 can be in abutment with the wall surface or the installation surface, and the main air inlet 201 and the auxiliary air inlet 211 are both directed towards the front side. When the range hood 1 is in the open state, the smoke collecting body 21 is arranged between the rack 10 and the lifting body 22, and the main air inlet 201 is farther away from the rack 10 than the auxiliary air inlet 211. In this way, the main air inlet 201 is closer to the cooking appliance, thereby quickly sucking in most of the flue gas. The auxiliary air inlet 211 is farther away from the cooking appliance than the main air inlet 201, thereby sucking in the flue gas that is not completely sucked in by the main air inlet 201. In this way, the flue gas generated during cooking can be sucked in in a zoned manner, thereby improving the flue gas suction effect of the range hood 1.

[0039] In some embodiments, when the range hood 1 is in the open state, the lifting body 22 moves away from the smoke collecting 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 the closed state, the lifting body 22 moves towards the smoke collecting body 21 to close the main air inlet 201, and the opening and closing member 30 moves towards the auxiliary air inlet 211 to close the auxiliary air inlet 211.

[0040] In some embodiments, the smoke collecting body 21 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, and the auxiliary air inlet 211 is arranged on the 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.

[0041] The front plate, the side plate and the back plate surround the main smoke collecting body 21 to form a cuboid shape. The thickness of the side plate in the direction between the front plate and the back plate is maintained at a preset value. The range hood 1 has a mounting surface parallel to the back 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 main smoke collecting body 21 has a uniform thickness, thereby reducing the occupation of the cooking space by the main smoke collecting body 21. Optionally, the thickness of the rack 10 in the direction away from the mounting surface is greater than the thickness of the main smoke collecting body 21 in the direction away from the mounting surface. Optionally, the distance between the front plate and the back plate is maintained at a preset value. It should be noted that the front plate, the back plate or the side plate may be subjected to sheet metal processing during manufacturing for the purpose of strength and assembly, and some protrusions or depressions may be generated, and the aforementioned distance measurement can take the plane where the part with the largest area of the plate is located as the reference.

[0042] In some embodiments, the range hood 1 has a first direction, a second direction and a third direction which are orthogonal to each other. The direction between the rack 10 and the main smoke collecting body 21 is the second direction, the direction towards 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 main smoke collecting 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 surface, and the first direction can be the horizontal direction.

[0043] During the opening process of the range hood 1, the lifting body 22 and the opening and closing member 30 need to be moved to open the main air inlet 201 and the auxiliary air inlet 211. During the closing process of the range hood 1, the lifting body 22 and the opening and closing member 30 need to be moved 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 member 30 and the lifting 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 body 22 and the opening and closing member 30.

[0044] In combination Figure 4 In order to solve the above technical problems, in the range hood 1 provided by the embodiments of the present application, the opening and closing member 30 and the lifting body 22 are drivingly connected through the transmission mechanism 40. In this way, one of the opening and closing member 30 and the lifting body 22 can be driven by one driving device 70 to simultaneously drive the movement of the lifting body 22 and the opening and closing member 30. Moreover, the movement of the lifting body 22 and the opening and closing member 30 has good synchronization, and the main air inlet 201 and the auxiliary air inlet 211 can be opened or closed at the same time. Through the above-mentioned manner, the movement control of the range hood 1 can be optimized.

[0045] In some embodiments, the smoke machine 1 comprises a driving device 70, which is drivingly connected with the lifting body 22. The driving device 70 drives the opening and closing piece 30 to move through the lifting body 22 and the transmission mechanism 40. In other words, during the process of opening and closing, the lifting body 22 is the driving part, and the opening and closing piece 30 is the driven part. Since the lifting body 22 has a larger volume relative to the opening and closing piece 30, the lifting body 22 needs a larger driving force to move compared with the opening and closing piece 30. The driving device 70 is directly drivingly connected with the lifting body 22, which can make the lifting body 22 have sufficient driving force to move. The driving force required by the opening and closing piece 30 is smaller than that required by the lifting body 22, and there is also energy loss in the transmission process of the transmission mechanism 40. Therefore, by setting the lifting 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, and the movement control of the smoke machine 1 is further optimized.

[0046] In combination Figures 4 to 8 In some embodiments, the transmission mechanism 40 comprises a sliding block 41, a connecting rod mechanism 42, and a pushing piece 43. The sliding block 41 is fixedly connected with the lifting body 22, and is slidingly connected with the smoke collecting body 21, and is hingedly connected with the connecting rod mechanism 42. The lifting body 22 is slidingly connected with the smoke collecting body 21. The pushing piece 43 is fixedly connected with the opening and closing piece 30, and is hingedly connected with the connecting rod mechanism 42. The opening and closing piece 30 is hingedly connected with the smoke collecting body 21. In this way, during the lifting process of the lifting body 22, the connecting rod mechanism 42 and the pushing piece 43 are driven to move, thereby driving the opening and closing piece 30 to rotate.

[0047] In some embodiments, the direction of the rotation axis of the opening and closing piece 30 relative to the smoke collecting body 21, the direction of the rotation axis of the pushing piece 43 relative to the connecting rod mechanism 42, and the direction of the rotation axis of the sliding block 41 and the connecting rod mechanism 42 are parallel to the first direction. In this way, the movement of each component of the transmission mechanism 40 can occupy less space in the first direction, so as to reduce the influence on the inside of the smoke collecting body 21, reduce the influence of the transmission mechanism 40 on the airflow, and reduce the possibility of noise generated by the interaction between the transmission mechanism 40 and the airflow.

[0048] 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 smoke machine 1 is in an open state. When the transmission mechanism 40 is in the second state, the smoke machine 1 is in a closed state. The transmission mechanism 40 can be switched between the first state and the second state through the movement of the opening and closing piece 30 or the lifting body 22.

[0049] In some embodiments, the angle between the link mechanism 42 and the second direction is smaller when the transmission mechanism 40 is in the first state than when the transmission mechanism 40 is in the second state.

[0050] In some embodiments, the slider 41 includes a sliding portion 411 fixedly connected and a extending portion 412, the sliding portion 411 is slidingly connected with the smoke collection body 21, and the extending portion 412 is inclinedly extended from the sliding portion 411 to the direction close to the front side in the direction towards the rack 10. In this way, the extending portion 412 can have sufficient length to be connected with the link mechanism 42 in the case that the space in the smoke collection body 21 is limited.

[0051] In some embodiments, the link mechanism 42 is extended from the slider 41 to 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 link mechanism 42 can have sufficient length to be connected with the link mechanism 42 in the case that the space in the smoke collection body 21 is limited.

[0052] In some embodiments, the pushing member 43 is inclinedly extended from the link mechanism 42 to the front side in the direction towards the rack 10 at least when the transmission mechanism 40 is in the first state. Optionally, the pushing member 43 is inclinedly extended from the link mechanism 42 to the front side in the direction towards the rack 10 when the transmission mechanism 40 is in the second state. In the above way, the pushing member 43 can be accommodated in the smoke collection body 21 to reduce the problem of incomplete closure of the opening and closing member 30 due to the inability to accommodate the pushing member 43.

[0053] In summary, since the space in the third direction inside the smoke collection body 21 is limited, and the lifting body 22 and the opening and closing member 30 have a certain distance in the second direction. Therefore, 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 body 21. Based on this situation, each component of the transmission mechanism 40 can be arranged to be inclinedly extended relative to the second direction, which can enable the transmission mechanism 40 to drive connect the opening and closing member 30 and the lifting 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.

[0054] In some embodiments, the slider 41 and the link mechanism 42 are arranged in the smoke collection body 21, the smoke collection body 21 is provided with an opening 212 (in combination with Figure 13 The pushing member 43 is connected with the opening and closing member 30 outside the smoke collection body 21 through the opening 212.

[0055] In combination with Figures 9 to 12In some embodiments, the smoke machine 1 further comprises a limiting member 50, which is fixed relative to the lifting body 22 and movably connected with the smoke collecting 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.

[0056] Specifically, in the present embodiment, the lifting body 22 can be drivingly connected with the opening and closing member 30 through the transmission mechanism 40, or the lifting body 22 can be not connected with the opening and closing member 30. The lifting body 22 and the opening and closing member 30 can be separately driven to open and close through respective driving mechanisms, or the lifting body 22 and the opening and closing member 30 can be manually opened or closed, which is not limited herein. During the closing process of the smoke machine 1, the limiting member 50 can abut against the pushing member 43, so that the limiting member 50 can promote the closing of the opening and closing member 30 during the closing process of the smoke machine 1, thereby increasing the synchronization degree of the closing of the lifting body 22 and the closing of the opening and closing member 30 during the closing process of the smoke machine 1, and reducing the possibility of the opening and closing member 30 not being closed in place.

[0057] In combination with the foregoing embodiments, the lifting 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 is moved from the first state to the second state, the limiting member 50 abuts against the pushing member 43. During the process that the transmission mechanism 40 is moved from the second state to the first state, the limiting member 50 is separated from the pushing member 43.

[0058] Specifically, although the lifting body 22 and the opening and closing member 30 are drivingly connected through the transmission mechanism 40, the lifting body 22 and the opening and closing member 30 can be linked. However, during the actual transmission, when the smoke machine 1 is closed, each component in the transmission mechanism 40 can be subjected to more compressive stress due to the change in angle. Each component can have a problem of insufficient rigidity or stability, that is, the transmission mechanism 40 is more likely to deform during the closing process of the smoke machine 1. If the transmission mechanism 40 deforms, the closing of the opening and closing member 30 can not be completely transmitted to the opening and closing member 30 through the transmission mechanism 40, and the lifting body 22 can move to the end of the stroke, but the opening and closing member 30 can not move to the end of the stroke (that is, the opening and closing member 30 can not be closed in place).

[0059] To improve this situation, the present embodiment can set the abutment mode of the limiting member 50 and the pushing member 43 to improve the closing 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 relatively short, for example, the limiting member 50 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 the technical problem of the opening and closing member 30 not being closed in place caused by the deformation of the connecting rod mechanism 42 is improved.

[0060] Further, in the case that the smoke machine 1 is closed, the pushing piece 43 can be limited by the limiting piece 50. The movement of the opening and closing piece 30 towards the auxiliary air inlet 211 is limited by the smoke collecting body 21, and the movement of the limiting piece 50 towards the rack 10 can be limited by the pushing piece 43. The movement of the opening and closing piece 30 away from the auxiliary air inlet 211 is limited by the limiting piece 50 and the pushing piece 43.

[0061] On the one hand, the movement of the opening and closing piece 30 towards the auxiliary air inlet 211 being limited by the smoke collecting body 21 can make the pushing piece 43 unable to rotate further towards the rack 10, and the movement of the limiting piece 50 towards the rack 10 can be limited by the pushing piece 43. After the movement of the limiting piece 50 towards the rack 10 is limited by the pushing piece 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 smoke machine 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 movement of the lifting body 22 can be limited, thereby at least limiting the limiting piece 50 away from the pushing piece 43. In this case, the movement of the opening and closing piece 30 away from the auxiliary air inlet 211 can be limited by the pushing piece 43 and the limiting piece 50, and the opening and closing piece 30 can be prevented from being opened in this case.

[0062] In some embodiments, the limiting piece 50 is installed on the sliding block 41, and the limiting piece 50 includes a fixed part 51 and a limiting part 52. The fixed 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 orthographic projection of the fixed part 51 falls completely within the surface of the sliding block 41. In this way, the protrusion of the fixed part 51 relative to the sliding block 41 can be reduced, thereby reducing the influence of the arrangement of the fixed part 51 on the internal structure of the smoke collecting body 21, reducing the influence of the fixed 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 on the one hand provide space for the hinge connection of the sliding block 41 and the connecting rod mechanism 42, and on the other hand facilitate the correspondence of the limiting part 52 and the pushing piece 43, and facilitate the abutment of the limiting part 52 and the pushing piece 43.

[0063] In some embodiments, the limiting piece 50 is arranged at one side of the sliding block 41 in the first direction. The pushing piece 43 comprises a connecting portion 431 and a pushing portion 432 connected with each other. The connecting portion 431 is hinged with the linkage 42, and the pushing portion 432 is fixedly connected with the opening and closing piece 30. The pushing portion 432 is located at one side of the connecting portion 431 in the first direction, at least part of the limiting piece 50 and the pushing portion 432 are located at the same side of the linkage 42, and the limiting piece 50 can abut against the pushing portion 432 during the process of closing the smoke machine 1. In the above manner, the pushing portion 432 and the limiting portion 52 can be biased to the same side compared with the linkage 42, the position of the pushing portion 432 and the position of the limiting portion 52 can be matched, and the interference between the movement process of the linkage 42 and the abutting process of the limiting piece 50 and the pushing piece 43 can be reduced. Further, the limiting piece 50 can be arranged at 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 portion 432 can be arranged at the side of the connecting portion 431 away from the middle part of the smoke collecting main body 21 in the first direction. In this way, the limiting portion 52 and the pushing portion 432 can be arranged at the outer side compared with the smoke collecting main body 21, so as to reduce the influence of the arrangement of the limiting portion 52 and the pushing portion 432 on the airflow movement in the smoke collecting main body 21.

[0064] In some embodiments, the sliding block 41, the limiting piece 50 and the linkage 42 are arranged in the smoke collecting main body 21, the smoke collecting main body 21 is provided with an opening 212, and the pushing piece 43 passes through the opening 212 to be connected with the opening and closing piece 30 outside the smoke collecting 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 collecting main body 21 in the case of closing the smoke machine 1. Further improvement is made to the abutting position, so as to further reduce the problem of incomplete closing of the opening and closing piece 30 caused by deformation of the limiting piece 50 during the abutting process of the limiting piece 50 and the pushing piece 43. 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 the abutting process of the limiting piece 50 and the pushing piece 43, and the torque generated is small, so that the pushing piece 43 is not prone to deformation.

[0065] In some embodiments, the pushing piece 43 comprises a connecting portion 431 and a pushing portion 432 connected with each other. The connecting portion 431 is hinged with the linkage 42, and the pushing portion 432 is fixedly connected with the opening and closing piece 30. The side of the pushing portion 432 facing the limiting piece 50 comprises an arc-shaped segment 4321 and an abutting segment 4322 connected with each other (combined with the description of the abutting segment 4322) Figure 14 and 15The arc-shaped section 4321 is located on the side of the abutting section 4322 away from the opening and closing member 30, and the abutting section 4322 is used to abut against the limiting member 50. The opening and closing member 30 is rotationally connected to the smoke collection main body 21, but the pushing member 43 is fixedly connected to the opening and closing member 30, and the pushing member 43 is also rotationally connected to the smoke collection main body 21. In order to reduce the interference between the pushing member 43 and the smoke collection main body 21, the pushing member 43 can be provided with the arc-shaped section 4321 on the side facing the limiting member 50, and the arc-shaped section 4321 can cooperate with the rotation of the pushing member 43, so that the distance between the pushing member 43 and the smoke collection main body 21 has a smaller change during the movement, thereby reducing the interference.

[0066] Optionally, the center of the arc-shaped section 4321 is located at the rotation axis of the opening and closing member 30 and the smoke collection main body 21. Further, in order to facilitate the abutment between the limiting member 50 and the pushing member 43, the part of the pushing member 43 close to the opening and closing member 30 is provided with the abutting section 4322, so as to facilitate the abutment between the limiting member 50 and the pushing member 43. Optionally, the abutting section 4322 is a straight section, the abutting section 4322 has an abutting plane, and can form a plane abutment with the limiting member 50.

[0067] In combination Figures 13 to 15 In some embodiments, the range hood 1 comprises a pushing member 43. The pushing member 43 can push the opening and closing member 30 to open or close. The pushing member 43 can be drivingly connected to the opening and closing member 30 through the connecting rod mechanism 42 and the sliding block 41, for example, in the above-mentioned embodiments. The pushing member 43 can also be drivingly connected to the opening and closing member 30 through a separate driving mechanism. The pushing member 43 can also be dampingly matched with the smoke collection main body 21, which is not limited here. At least one side of the pushing member 43 is provided with a buckle portion 60, and the pushing member 43 is selectively buckled with the smoke collection main body 21 through the buckle portion 60. When the pushing member 43 is buckled with the smoke collection main body 21, at least part of the pushing member 43 is located outside the smoke collection main body 21.

[0068] Specifically, during the assembly of the range hood 1, the pushing member 43 and the opening and closing member 30 need to be fixedly assembled. However, before the pushing member 43 and the opening and closing member 30 are assembled, the pushing member 43 is easy to fall into the inside of the smoke collection main body 21 due to the lack of limitation of the opening and closing member 30, which brings inconvenience to the assembly work. One side of the pushing member 43 is provided with the buckle portion 60, so that the pushing member 43 can be buckled on the smoke collection main body 21 before the assembly of the pushing member 43 and the opening and closing member 30 is completed, thereby avoiding the pushing member 43 from falling into the inside of the smoke collection main body 21. After the assembly of the pushing member 43 and the opening and closing member 30 is completed, the buckle portion 60 can be unbuckled with the smoke collection main body 21, and the pushing member 43 can normally drive the opening and closing member 30 to open or close.

[0069] In some embodiments, the smoke collecting body 21 is provided with a clamping portion for cooperating with the buckle portion 60. The pusher 43 cooperates with the clamping portion at least when the opening and closing member 30 is separated from the smoke collecting body 21, so as to limit the pusher 43 from entering the interior of the smoke collecting body 21. The clamping portion can be a clamping groove, a clamping hole or a clamping hook, which is not limited herein.

[0070] In some embodiments, the buckle portion 60 is arranged on the side of the pusher 43 close to the relative rotation axis of the opening and closing member 30 and the smoke collecting body 21. The opening and closing member 30 is rotationally connected with the smoke collecting 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 body 21. During rotation, the arrangement of the buckle portion 60 is prone to interfering with the smoke collecting 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 relative rotation axis of the opening and closing member 30 and the smoke collecting body 21. Since the stroke of the side of the pusher 43 close to the relative rotation axis of the opening and closing member 30 and the smoke collecting body 21 is relatively short during rotation, through the foregoing manner, the buckle portion 60 has a relatively small movement during the movement of the pusher 43, and the possibility of interference with the smoke collecting body 21 is reduced. Furthermore, at least part of the side of the pusher 43 away from the relative rotation axis of the opening and closing member 30 and the smoke collecting body 21 is arranged in an arc shape. In this way, the possibility of interference between the pusher 43 and the smoke collecting 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 relative rotation axis of the opening and closing member 30 and the smoke collecting body 21.

[0071] In some embodiments, the smoke collecting body 21 is provided with an opening 212 for the pusher 43 to pass through, and the smoke collecting body 21 is provided with a clamping portion corresponding to the end of the opening 212 close to the relative rotation axis of the opening and closing member 30 and the smoke collecting body 21. Since the pusher 43 can be connected with the lifting 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 pusher 43 that can be pulled out of the smoke collecting body 21 is limited. Through the foregoing manner, the position where the pusher 43 is clamped can be close to the position of the pusher 43 when the opening and closing member 30 is opened after assembly, so as to solve the problem that the part of the pusher 43 that can move is limited. 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 be performed when the pusher 43 is clamped in the smoke collecting body 21, which can further facilitate the assembly of the pusher 43 and the opening and closing member 30.

[0072] 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.

[0073] 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 extractor hood comprises: a rack; a smoke collecting assembly mounted on the rack, the smoke collecting assembly comprising a smoke collecting body, and a secondary air inlet arranged on the smoke collecting body; an opening and closing member movably mounted on the smoke collecting body, the opening and closing member being arranged in correspondence with the secondary air inlet; a pushing member connected with the opening and closing member, used for driving the opening and closing member to open or close; wherein at least one side of the pushing member is provided with a buckle part, the pushing member is selectively buckled with the smoke collecting body through the buckle part, and when the pushing member is buckled with the smoke collecting body, at least part of the pushing member is located outside the smoke collecting body.

2. The extractor hood according to claim 1, wherein: the smoke collecting body is provided with a buckling part for cooperating with the buckle part; and the pushing member at least cooperates with the buckling part when the opening and closing member is separated from the smoke collecting body, so as to limit the pushing member from entering the inside of the smoke collecting body.

3. The extractor hood according to claim 2, wherein: the buckle part is arranged on the side of the pushing member close to the relative rotation axis between the opening and closing member and the smoke collecting body, and at least part of the side of the pushing member away from the relative rotation axis between the opening and closing member and the smoke collecting body is arranged in an arc shape.

4. The extractor hood according to claim 3, wherein: the smoke collecting body is provided with an opening for the pushing member to pass through, and the smoke collecting body is provided with the buckling part corresponding to the end of the opening close to the relative rotation axis between the opening and closing member and the smoke collecting body.

5. The extractor hood according to claim 4, wherein: the opening comprises a first part and a second part in communication with each other, the first part is used for the movement of the pushing member, and the second part is arranged in correspondence with the buckling part arranged on the smoke collecting body, and the second part is used for the buckle part to pass through.

6. The extractor hood according to claim 1, wherein: in the direction of the relative rotation axis between the opening and closing member and the smoke collecting body, the buckle part is arranged on at least one side of the pushing member.

7. The extractor hood according to claim 1, wherein: the smoke collecting assembly further comprises a lifting body movably mounted on the smoke collecting body, and the lifting body can form a main air inlet together with the smoke collecting body.

8. The extractor hood according to claim 7, wherein: the main air inlet and the secondary air inlet are oriented in the same direction; the smoke collecting body comprises a rear plate, a front plate and a plurality of side plates connected between the front plate and the rear plate, the secondary 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 are arranged to form a rectangular shape of the smoke collecting body; and / or, the extractor hood has a mounting plane parallel to the rear plate and the front plate, and the distances between the front plate and the mounting plane are equal.

9. The extractor hood according to claim 7, wherein: The lifting main body and the opening and closing piece are drivingly connected through a transmission mechanism, the transmission mechanism comprises a sliding block, a connecting rod mechanism and the pushing piece; the sliding block is fixedly connected with the lifting main body, slidingly 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; the opening and closing piece is hingedly connected with the smoke collecting main body.

10. The smoke machine of claim 8, wherein: The smoke machine further comprises a driving device, the driving device is drivingly connected with the lifting main body; the driving device drives the opening and closing piece to move through the lifting main body and the transmission mechanism.

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