A range hood

Abstract

The present invention provides a range hood, comprising: a volute and a wind wheel, and also comprising: a power device, comprising a driving body and an executive member, the executive member reciprocates relative to the driving body, and the driving body is fixedly connected to the side plate of the volute; a transmission mechanism, comprising a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the executive member, and the other end is hinged to the second connecting rod; a cleaning mechanism, comprising a cleaning part that can at least contact the inner side or outer side of the wind wheel, and the cleaning mechanism is connected to the second connecting rod; a receiving structure, which is rotatably arranged on the side plate, and the second connecting rod is connected to the receiving structure. The degree of freedom of the executive member and the transmission mechanism on the parallel surface of the side plate is 1, the movement trajectory of the second connecting rod is fixed, the cleaning mechanism arranged on the second connecting rod can be away from or contact the wind wheel, and the cleaning mechanism can clean the inner and outer sides of the wind wheel, the cleaning options are more, the cleaning is more comprehensive, and the defect of the range hood having many residual stains after self-cleaning is overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a range hood. Background Art

[0002] As people's living standards improve, the requirements for kitchen appliances also increase. Range hoods have become one of the indispensable kitchen appliances. High air volume can no longer meet people's requirements. The self-cleaning function of range hoods has become an important reference indicator for consumers to purchase range hoods.

[0003] At present, the commonly used self-cleaning technologies on the market are mainly divided into two types: steam cleaning and thermal oil removal. Steam cleaning mainly uses a water pump to pump water into the steam engine, and then the steam engine nozzle flushes the inside of the range hood to achieve self-cleaning; thermal oil removal mainly heats the volute or impeller and other components to the melting point of the oil, so that the oil melts and flows out of the range hood to achieve self-cleaning.

[0004] Recently, there is a new immersion washing method, as mentioned in patent document No. [CN208831345U], which is to put the impeller into a water storage box for immersion and flushing. This method prolongs the reaction time between detergent and oil through immersion, and has better cleaning effect than the above steam washing and thermal oil washing. However, on the one hand, flushing is random, and there is uncertainty as to whether the oil is flushed away. On the other hand, the oil in the cleaning water will partially remain on the impeller and adhere to the impeller after drying, making it impossible to achieve complete cleaning. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the range hood in the prior art that there are many residual stains after self-cleaning, thereby providing a range hood.

[0006] The present invention provides a range hood, comprising: a volute and a wind wheel, characterized in that it also comprises:

[0007] A power device, comprising a driving body and an actuating member, wherein the actuating member reciprocates relative to the driving body, and the driving body is fixedly connected to the volute side plate;

[0008] The transmission mechanism comprises a first connecting rod and a second connecting rod, wherein one end of the first connecting rod is rotatably connected to the actuator, and the other end of the first connecting rod is hinged to the second connecting rod;

[0009] A cleaning mechanism, comprising a cleaning portion capable of at least contacting the inner side surface or the outer side surface of the impeller, wherein the cleaning mechanism is connected to the second connecting rod;

[0010] The supporting structure is rotatably arranged on the side plate, and the second connecting rod is connected to the supporting structure.

[0011] The receiving structure includes: a fixing seat fixedly connected to the side plate;

[0012] The rotating ring comprises a rotating shaft and a ring sleeve, wherein the rotating shaft is rotatably connected to a fixed seat, and the second connecting rod of the transmission mechanism passes through the ring sleeve and is fixed to the ring sleeve.

[0013] The second connecting rod has a bent portion bent toward the wind wheel, and the bent portion is fixedly connected to the cleaning mechanism.

[0014] The cleaning part comprises: at least two supporting rods, and the bending part is connected to the supporting rods;

[0015] The cylindrical brush head is fixedly connected to the support rod accordingly.

[0016] Connecting rods are provided at the ends of the two supporting rods. The supporting rods are arranged parallel to the central axis of the wind wheel and are respectively arranged on the inner and outer sides of the wind wheel.

[0017] A gap is arranged between the volute and the wind wheel, and the connecting rod is arranged on both inner and outer sides of the wind wheel through the gap.

[0018] The bending part is a flexible part.

[0019] The power device is an electric push rod, the driving body is a push rod housing of the electric push rod, and the executing component is a screw rod of the electric push rod.

[0020] The technical solution of the present invention has the following advantages:

[0021] 1. The present invention provides a range hood, comprising: a volute and a wind wheel, and also comprising: a power device, comprising a driving body and an executive member, the executive member reciprocates relative to the driving body, and the driving body is fixedly connected to the side plate of the volute; a transmission mechanism, comprising a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the executive member, and the other end is hinged to the second connecting rod; a cleaning mechanism, comprising a cleaning part that can at least contact the inner side or outer side of the wind wheel, and the cleaning mechanism is connected to the second connecting rod; a receiving structure, which is rotatably arranged on the side plate, and the second connecting rod is connected to the receiving structure. The degree of freedom of the executive member, the transmission mechanism and the cleaning mechanism on the parallel surface of the side plate is 1, so when the executive member reciprocates, the second connecting rod moves in a fixed track, and the cleaning mechanism arranged on the second connecting rod has a cleaning state in contact with the side of the wind wheel and a standby state away from the wind wheel. The cleaning mechanism can clean the inner and outer sides of the wind wheel simultaneously or separately, and the cleaning options are more, and the cleaning is more comprehensive, which effectively overcomes the defect that there are many residual stains after the range hood is self-cleaned.

[0022] 2. The range hood provided by the present invention has a receiving structure comprising: a fixed seat, fixedly connected to the side plate; a rotating ring, comprising a rotating shaft and a ring sleeve, wherein the rotating shaft is rotatably connected to the fixed seat, and the second connecting rod of the transmission mechanism passes through the ring sleeve and is fixed to the ring sleeve. Since the fixed seat is fixed to the side plate of the volute, and the second connecting rod is fixed to the ring sleeve, and can be rotated with the fixed seat as the rotation center through the rotating shaft, each position on the second connecting rod will move along a fixed trajectory with the fixed seat as the center of the circle, so that the cleaning mechanism on the second connecting rod can move along a fixed trajectory, so that the cleaning state in contact with the wind wheel and the standby state away from the wind wheel can be achieved by controlling the second connecting rod.

[0023] 3. The range hood provided by the present invention has a connecting rod at the end of the support rod, and the support rod is arranged parallel to the central axis of the wind wheel and is respectively arranged on the inner and outer sides of the wind wheel. The support rod and the cylindrical brush head arranged on the support rod are arranged on both the inner and outer sides of the wind wheel, so that the inner and outer sides of the wind wheel can be cleaned in the cleaning state, which improves the cleaning range and effect, and the support rod is connected by the connecting rod, so that the inner and outer sides of the wind wheel can be cleaned at the same time, making cleaning more convenient and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A three-dimensional schematic diagram of a range hood provided in a first embodiment of the present invention;

[0026] Figure 2 A three-dimensional schematic diagram of a smoke extractor without a volute provided in a first embodiment of the present invention;

[0027] Figure 3 for Figure 1 A three-dimensional schematic diagram of the power device, cleaning mechanism and transmission mechanism of the range hood shown;

[0028] Description of reference numerals:

[0029] 1-power device; 2-cleaning mechanism; 3-transmission mechanism; 4-supporting structure; 5-volute; 6-wind wheel; 11-driving body; 12-executing member; 21-cleaning part; 211-support rod; 212-cylindrical brush head; 22-connecting rod; 31-first connecting rod; 32-second connecting rod; 321-bending part; 41-fixed seat; 42-rotating shaft; 43-ring sleeve; 51-side plate. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1 - Figure 3 The present invention provides a range hood, comprising: a volute 5 and an impeller 6, and also comprising: a power device 1, comprising a driving body 11 and an executive member 12, the executive member 12 reciprocates relative to the driving body 11, and the driving body 11 is fixedly connected to the side plate 51 of the volute 5; a transmission mechanism 3, comprising a first connecting rod 31 and a second connecting rod 32, one end of the first connecting rod 31 is rotatably connected to the executive member 12, and the other end is hinged to the second connecting rod 32; a cleaning mechanism 2, comprising a cleaning portion 21 that can at least contact the inner side or outer side of the impeller 6, and the cleaning mechanism 2 is connected to the second connecting rod 32; a receiving structure 4, which is rotatably arranged on the side plate 51, and the second connecting rod 32 is connected to the receiving structure 4.

[0035] The degree of freedom of the actuator 12, the transmission mechanism 3 and the cleaning mechanism 2 on the parallel plane of the side plate 51 is 1, so when the actuator 12 reciprocates, the second connecting rod 32 moves in a fixed track, and the cleaning mechanism 2 arranged on the second connecting rod 32 has a cleaning state in contact with the side of the wind wheel 6 and a standby state away from the wind wheel 6. The cleaning mechanism 2 can clean the inner and outer sides of the wind wheel 6 simultaneously or separately, with more cleaning options and more comprehensive cleaning, which effectively overcomes the defect of a large amount of residual stains after the range hood is self-cleaned.

[0036] The receiving structure 4 includes: a fixed seat 41, which is fixedly connected to the side plate 51 of the volute 5; a rotating ring, which includes a rotating shaft 42 and a ring sleeve 43, the rotating shaft 42 is rotatably connected to the fixed seat 41, and the second connecting rod 32 of the transmission mechanism 3 passes through the ring sleeve 43 and is fixed to the ring sleeve 43.

[0037] As a convertible embodiment, the ring sleeve 43 can rotate relative to the rotating shaft 42, and the rotating shaft 42 is fixedly connected to the second connecting rod 32. As other convertible embodiments, the ring sleeve 43 may not be provided, and the second connecting rod 32 is fixedly connected to the rotating shaft 42.

[0038] Since the fixed seat 41 is fixed to the side plate 51 of the volute 5, and the second connecting rod 32 is fixed to the ring sleeve 43, and can be rotated with the fixed seat 41 as the rotation center through the rotating shaft 42, each position on the second connecting rod 32 will move along a fixed trajectory with the fixed seat 41 as the center of the circle, so that the cleaning mechanism 2 on the second connecting rod 32 can move along a fixed trajectory, so that the cleaning state in contact with the wind wheel 6 and the standby state away from the wind wheel 6 can be achieved by controlling the second connecting rod 32.

[0039] The second connecting rod 32 has a bent portion 321 bent toward the wind wheel 6, and the bent portion 321 is fixedly connected to the cleaning mechanism 2. The arrangement of the bent portion 321 connects and fixes the transmission mechanism 3 on the side plate 51 of the volute 5 with the cleaning mechanism 2 disposed inside the volute 5, and the hinge on the side plate 51 of the volute 5 moves so that the power device 1 can control the activity of the cleaning device.

[0040] The cleaning part 21 includes two support rods 211, and the bending part 321 is connected to the support rods 211; the cylindrical brush head 212 is fixedly connected to the support rods 211. In this embodiment, the brush head is a sponge. As a convertible embodiment, the cleaning part 21 can be provided with one support rod 211 or multiple support rods 211, and the support rods 211 can be arranged on the inner side or the outer side of the wind wheel 6 as required. As other convertible embodiments, the brush head can be of different shapes, such as spherical or rectangular, etc., and can also be of different materials, such as a wire brush or a hair brush.

[0041] The two support rods 211 are arranged parallel to the central axis of the wind wheel 6 and are arranged on the inner and outer sides of the wind wheel 6 respectively. The axial length of the cylindrical brush head 212 is greater than the axial length of the wind wheel 6. The parallel support rods 211 can ensure that when the cleaning part 21 moves toward the wind wheel 6, the two cylindrical brush heads 212 are fully in contact with the wind wheel 6, preventing some brush heads from not contacting the wind wheel 6, so that the wind wheel 6 is completely cleaned. As a convertible embodiment, the support rods 211 and the central axis of the wind wheel 6 may also be non-parallel.

[0042] The support rod 211 and the cylindrical brush head 212 arranged on the support rod 211 are arranged on both the inner and outer sides of the wind wheel 6, so that the inner and outer sides of the wind wheel 6 can be cleaned in the cleaning state, thereby improving the cleaning range and effect. The support rod 211 is connected by the connecting rod 22, so that the inside and outside of the wind wheel 6 can be cleaned at the same time, making cleaning more convenient and easy.

[0043] A gap is provided between the volute 5 and the wind wheel 6 , and the connecting rod 22 is provided on both inner and outer sides of the wind wheel 6 through the gap.

[0044] The bending part 321 is a flexible part. The setting of the flexible part can reduce the vibration caused by the interference between the wind wheel 6 and the cylindrical brush head 212 during the cleaning process, avoid the hinge disengagement or loosening of the fixed structure caused by the transmission mechanism 3 and the power device 1 under vibration conditions, and improve the service life of the device. As a convertible embodiment, the bending part 321 can also be a rigid part.

[0045] The power device 1 is an electric push rod, the driving body 11 is a push rod housing of the electric push rod, and the actuator 12 is a screw rod of the electric push rod. As a convertible embodiment, the power device 1 can be a hydraulic cylinder or a pneumatic cylinder.

[0046] The working process of the range hood is as follows: when the impeller 6 enters the self-cleaning state, the power device 1 is started, the linearly moving executive component 12 extends out of the driving body 11 to push the first connecting rod 31 to rotate, the first connecting rod 31 drives the second connecting rod 32 hinged thereto to rotate with the supporting structure 4 as the axis, and the rotation of the second connecting rod 32 drives the cleaning mechanism 2 to move from a standby state away from the impeller 6 to a cleaning state interfering with the impeller 6; the range hood performs a self-cleaning procedure, such as steam washing or soaking washing, and at the same time drives the impeller 6 to rotate forward and reverse, and moves relative to the cleaning mechanism 2, and the cleaning part of the cleaning mechanism 2 wipes and cleans the inner and outer sides of the impeller 6; after the cleaning structure, the executive component 12 retracts the driving body 11, and the first connecting rod 31 drives the second connecting rod 32 to rotate, so that the cleaning mechanism 2 is reset to the standby state away from the impeller 6.

[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A range hood, comprising: The volute (5) and the wind wheel (6) are characterized by further comprising: A power device (1) comprises a driving body (11) and an actuating member (12), wherein the actuating member (12) reciprocates relative to the driving body (11), and the driving body (11) is fixedly connected to a side plate (51) of the volute (5); A transmission mechanism (3) comprising a first connecting rod (31) and a second connecting rod (32), wherein one end of the first connecting rod (31) is rotatably connected to the actuator (12), and the other end is hinged to the second connecting rod (32); A cleaning mechanism (2) comprising a cleaning portion (21) capable of contacting at least the inner side surface and the outer side surface of the wind wheel (6), the cleaning mechanism (2) being connected to the second connecting rod (32); A receiving structure (4) is rotatably arranged on the side plate (51), and the second connecting rod (32) is connected to the receiving structure (4); The power device (1) and the receiving structure (4) are both located outside the volute (5); When the wind wheel (6) enters the self-cleaning state, the power device (1) is started, the linearly moving execution member (12) extends out of the driving body (11) to push the first connecting rod (31) to rotate, the first connecting rod (31) drives the second connecting rod (32) hinged thereto to rotate about the supporting structure (4), and the rotation of the second connecting rod (32) drives the cleaning mechanism (2) to move from a standby state away from the wind wheel (6) to a cleaning state interfering with the wind wheel (6); After cleaning is completed, the execution component (12) retracts the driving body (11), and the first connecting rod (31) drives the second connecting rod (32) to rotate, so that the cleaning mechanism (2) is reset to a standby state away from the wind wheel (6).

2. The range hood according to claim 1, characterized in that: The receiving structure (4) comprises: A fixing seat (41) fixedly connected to the side plate (51); The rotating ring comprises a rotating shaft (42) and a ring sleeve (43); the rotating shaft (42) is rotatably connected to a fixed seat (41); the second connecting rod (32) of the transmission mechanism (3) passes through the ring sleeve (43) and is fixed to the ring sleeve (43).

3. The range hood according to any one of claims 1-2, characterized in that: The second connecting rod (32) has a bent portion (321) bent towards the wind wheel (6), and the bent portion (321) is fixedly connected to the cleaning mechanism (2).

4. The range hood according to claim 3, characterized in that: The cleaning unit (21) comprises: At least two support rods (211), the bent portion (321) being connected to the support rods (211); The cylindrical brush head (212) is correspondingly fixedly connected to the support rod (211).

5. The range hood according to claim 4, characterized in that: Connecting rods (22) are provided at the ends of the two support rods (211); the support rods (211) are arranged parallel to the central axis of the wind wheel (6) and are respectively arranged on the inner and outer sides of the wind wheel (6).

6. The range hood according to claim 4, characterized in that: A gap is provided between the volute (5) and the wind wheel (6), and the connecting rod (22) is provided on both inner and outer sides of the wind wheel (6) through the gap.

7. The range hood according to claim 6, characterized in that: The bending portion (321) is a flexible part.

8. The range hood according to claim 1, characterized in that: The power device (1) is an electric push rod, the driving body (11) is a push rod housing of the electric push rod, and the actuator (12) is a screw rod of the electric push rod.

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