CN217271066U - A wiper mechanism, belt cleaning device and range hood for range hood - Google Patents

Abstract

The utility model discloses a wiper mechanism, belt cleaning device and range hood for range hood, a wiper mechanism for range hood, be used for driving the actuating mechanism of cleaning medium supply pipe motion and transmit the drive bracket of cleaning medium supply pipe with actuating mechanism output including cleaning medium supply pipe, nozzle, the nozzle is used for receiving the cleaning medium that the cleaning medium supply pipe supplied with and sprays to treat cleaning object, its characterized in that: the transmission bracket comprises a bracket base, a track is formed on the bracket base in a concave manner, the cleaning medium supply pipe penetrates through the track, and the shape of the track is matched with that of the cleaning medium supply pipe; the transmission bracket also comprises a pressing part which presses the cleaning medium supply pipe in the track so as to be fixed with the bracket base.

Description

A wiper mechanism, belt cleaning device and range hood for range hood

Technical Field

The utility model relates to a cleaning equipment, especially a belt cleaning device, fan belt cleaning device and range hood for range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, and is accelerated by the fan, collected by the volute and guided to be discharged outdoors.

With the continuous progress of the self-cleaning technology of the range hood, steam cleaning or water cleaning is widely applied to the field of self-cleaning of the range hood, and the basic principle is that a steam generator generates steam or water pumped by a water pump, the steam or water is conveyed to a nozzle at the tail end of a spray pipe, the steam or water is quickly sprayed out of the nozzle to act on the surface of a target object, and oil stains are softened and peeled by means of chemical effects, hot melting, impact force and the like.

Because the fixed nozzle cleaning range and the cleaning effect are limited, in order to improve the cleaning effect, the chinese patent with application number 202111284408.2 of the present applicant proposes a cleaning structure, so that the cleaning medium supply pipe makes an arc motion, thereby being capable of realizing comprehensive cleaning and adapting to the limitation of the installation space of the fan, but the cleaning medium trajectory sprayed by the nozzles on the cleaning medium supply pipe still needs to be further improved in control accuracy.

In addition, the heating module for heating the cleaning medium is usually disposed at a position far away from the nozzle, such as on an air outlet plate at the top of the fan frame, and the pipeline of the hot water is long, which easily causes heat loss, resulting in a reduction in cleaning effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first technical problem that will solve is to prior art's current situation, provides a wiper mechanism for range hood, can improve the accuracy of wasing the orbit.

The utility model aims to solve the second technical problem that a cleaning device who uses the above-mentioned wiper mechanism who is used for range hood is provided.

The utility model aims to solve the third technical problem that a fan belt cleaning device who uses the belt cleaning device who has above-mentioned a range hood is provided.

The fourth technical problem to be solved of the present invention is to provide a range hood with the above-mentioned cleaning mechanism.

The utility model provides a technical scheme that above-mentioned first technical problem adopted is: a cleaning mechanism for a range hood comprises a cleaning medium supply pipe, a nozzle and a transmission bracket, wherein the nozzle is used for driving the cleaning medium supply pipe to move, the transmission bracket is used for transmitting the output of the driving mechanism to the cleaning medium supply pipe, the nozzle is used for receiving the cleaning medium supplied by the cleaning medium supply pipe and spraying the cleaning medium to an object to be cleaned, and the cleaning mechanism is characterized in that: the transmission bracket comprises a bracket base, a track is formed on the bracket base in a concave manner, the cleaning medium supply pipe penetrates through the track, and the shape of the track is matched with that of the cleaning medium supply pipe; the transmission bracket also comprises a pressing component which presses the cleaning medium supply pipe in the track so as to be fixed with the bracket base.

According to the utility model discloses an aspect, compress tightly the part and be the support upper cover, the support upper cover lid closes in track department and compresses tightly the cleaning medium supply pipe, the shape and the cleaning medium supply pipe adaptation that support upper cover and cleaning medium supply pipe correspond the position.

According to the utility model discloses an aspect, for the fixed of support base and support upper cover to and be convenient for spacing to the cleaning medium supply pipe in each dimension, have on the support base to the convex first buckle of support upper cover direction, cover on the support and seted up the bayonet socket, first buckle makes support base and support upper cover chucking with the bayonet socket block, support base and support upper cover are still fixed through first fastener.

In order to conveniently limit the connecting position of the cleaning medium supply pipe and the external conduit, a guide ring is further arranged on one side, away from the upper cover of the bracket, of the bracket base of the transmission bracket, and one end, away from the nozzle, of the cleaning medium supply pipe penetrates through the bracket base and the guide ring.

According to the utility model discloses a in another aspect, for the fixed of support base and support upper cover, support base and support upper cover are fixed through the mode of butt joint.

According to the utility model discloses a according to another aspect, for the fixed of support base and support upper cover, the one end and the actuating mechanism of transmission support are connected, the one end adjacent department of keeping away from with actuating mechanism of transmission support sets up above-mentioned track, one in support base and the support upper cover is formed with the convex first buckle of direction of keeping away from orbital direction keeping away from the one end of being connected with actuating mechanism, another block in first buckle and support base and the support upper cover.

According to the utility model discloses a further aspect, for the installation and the spacing of support base and support upper cover, first buckle is the Z style of calligraphy.

According to another aspect of the utility model, the hold-down part is the screw, the screw from the transmission support outside pass the support base with the adjacent wall of track and penetrate in the track to with the pipe wall outside butt of cleaning medium supply pipe.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: a belt cleaning device for range hood, its characterized in that: the cleaning device is applied with the cleaning mechanism.

In order to facilitate installation of the cleaning mechanism, the cleaning device comprises a mounting bracket fixed with an object to be cleaned, and the cleaning mechanism is installed on the object to be cleaned through the mounting bracket.

In order to install the driving mechanism conveniently and complete the installation of the cleaning mechanism, the driving mechanism is fixed on the installation support through the driving mechanism fixing plate, and the driving mechanism fixing plate is connected with the installation support in a clamping mode.

In order to limit and guide the movement of the cleaning medium supply pipe, the cleaning mechanism further comprises a support bracket, the support bracket is fixed with the mounting bracket, and the cleaning medium supply pipe is supported on the support bracket and can move relative to the support bracket.

In order to limit the movement of the cleaning medium supply pipe conveniently, a limit convex hull capable of contacting with the transmission bracket is arranged on one side, facing the cleaning medium supply pipe, of the driving mechanism fixing plate.

In order to reduce the heat loss of the cleaning medium, the cleaning device also comprises a heating module for heating the cleaning medium, the cleaning medium supply pipe is communicated with the heating module through a conduit, and the heating module is installed on the installation support.

Preferably, in order to facilitate installation of the heating module, the driving mechanism is fixed on the mounting bracket through the driving mechanism fixing plate, and the heating module is provided with a second buckle which is clamped with the driving mechanism fixing plate.

The utility model provides a technical scheme that above-mentioned third technical problem adopted does: the utility model provides a fan belt cleaning device for range hood, includes the fan system who treats the cleaning object, its characterized in that: the cleaning device for the range hood as described above is applied.

Preferably, in order to cover the axial direction of the impeller for omnibearing cleaning, the fan system comprises a volute and the impeller arranged in the volute, the volute comprises two cover plates arranged at intervals and a ring wall positioned between the two cover plates, and a nozzle of the cleaning mechanism can enter the volute from the ring wall.

The utility model provides a technical scheme that above-mentioned fourth technical problem adopted does: a range hood, its characterized in that: the cleaning mechanism for the range hood as described above is applied.

Compared with the prior art, the utility model has the advantages of: by the structure of the transmission bracket, the connection between the cleaning medium supply pipe and the transmission bracket is stable, and the installation is convenient, so that the accuracy of the track of the cleaning medium sprayed out of the cleaning medium supply pipe can be improved; the heating module is arranged on the driving mechanism fixing plate, the distance between the hot water outlet end and the nozzle is shorter, the heat loss is small, and the heating module is installed in an inserting manner through the buckle structure, so that the heating module is more convenient to disassemble; by arranging the limiting convex hulls and the supporting bracket, the operation of the cleaning medium supply pipe can be more reliable.

Drawings

Fig. 1 is a schematic view of a fan cleaning apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic view of a hidden water tank and a pipeline thereof of a fan cleaning device according to a first embodiment of the present invention;

FIG. 3 is a schematic view of the bracket of the hidden washer mechanism of FIG. 2;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

fig. 5 is a schematic view of a cleaning mechanism, a heating module and a mounting structure of the fan cleaning apparatus according to the first embodiment of the present invention;

FIG. 6 is a schematic view of the cleaning mechanism and the duct of the fan cleaning apparatus according to the first embodiment of the present invention;

FIG. 7 is a schematic view of a bracket of a cleaning mechanism of a blower cleaning device according to a first embodiment of the present invention

Fig. 8 is a schematic view of a bracket of a cleaning mechanism of the fan cleaning apparatus according to the first embodiment of the present invention;

fig. 9 is a schematic view of a cleaning medium supply pipe, a nozzle and a transmission bracket of a cleaning mechanism of a fan cleaning device according to a second embodiment of the present invention;

fig. 10 is a schematic view of a cleaning medium supply pipe, a nozzle and a transmission bracket of a cleaning mechanism of a fan cleaning device according to a third embodiment of the present invention;

fig. 11 is a schematic view of a cleaning medium supply pipe, a nozzle and a transmission bracket of a cleaning mechanism of a fan cleaning device according to a fourth embodiment of the present invention;

fig. 12 is a schematic view of a cleaning medium supply pipe, a nozzle, and a transmission bracket of a cleaning mechanism of a fan cleaning device according to a fifth embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 to 4, a fan cleaning device for a range hood includes a fan system 1 and a cleaning device, where the fan system 1 is a centrifugal fan and is applied to the range hood in this embodiment, alternatively, the fan system 1 may also be applied to any other occasions requiring such a power device.

The fan system 1 includes a volute 11 and an impeller 12 disposed in the volute 11, the volute 11 includes two cover plates 111 arranged at intervals and an annular wall 112 located between the two cover plates 111, and an air inlet 113 is opened on the cover plate 111. The structure of the fan system 1 is the same as that of the prior art, and is not described herein again.

The cleaning device is arranged on the outer side of the volute casing 11 and comprises a cleaning mechanism, a mounting bracket 22, a water tank 23, a water pump 24 and a heating module 25. The water tank 23 is used for storing a cleaning medium, and the cleaning medium can be water or liquid such as cleaning agent. The water pump 24 is used to pump the cleaning medium in the water tank 23 into the heating module 25, so that the cleaning medium can be heated to form hot water or steam. The cleaning mechanism is in fluid communication with the heating module 25 via conduit 26 so that heated cleaning medium output by the heating module 25 can be sprayed into the volute 11.

In this embodiment, to ensure that the impeller 12 is cleaned in the largest range, the cleaning mechanism is disposed on the annular wall 112 of the volute casing 11 through the mounting bracket 22, a relief hole (not shown) is formed in the annular wall 112, a blocking device 114 is disposed at the relief hole, the blocking device 114 may be an elastic silicone valve plate, and the like, and in an operating state, the cleaning mechanism may push the blocking device 114 away from the outside of the volute casing 11, and at least partially enter the volute casing 11 through the relief hole, so as to clean the impeller 12. When the cleaning is completed and the cleaning mechanism exits the volute 11, the plugging device 114 can automatically restore the plugging state.

In addition, the cleaning device can be used for cleaning the fan system 1, and can also be used for cleaning other components of the range hood, an inner cavity (an object to be cleaned) and the like.

Referring to fig. 5 to 8, the cleaning mechanism includes a cleaning medium supply pipe 211, a nozzle 212, a driving mechanism 213, and a transmission bracket 214, wherein the cleaning medium supply pipe 211 is made of metal, and the cleaning medium supply pipe 211 has a circular cross section and is generally arc-shaped. A cleaning medium supply pipe 211 passes through the driving bracket 214, and has one end connected to and in fluid communication with the guide pipe 26 and the other end provided with the above-mentioned nozzle 212.

The cleaning medium supply pipe 211 and the nozzle 212 may be integrated or separated. In view of the high temperature and high pressure characteristic inside the cleaning medium supply pipe 211 when the fluid passes through the cleaning medium supply pipe 211, it is preferable that the cleaning medium supply pipe 211 is made of metal such as an aluminum pipe, a copper pipe, or a stainless steel profile pipe. And folding into a corresponding shape through a bending process.

The drive mechanism 213, which is preferably a stepper motor in this embodiment, is secured to the mounting bracket 22 by a drive mechanism securing plate 2131. The mounting bracket 22 may be in the form of a semi-open box, such as a U-shape in this embodiment, and two arms of the U-shape may be respectively fixed to the cover plate 111 of the volute casing 11. The drive mechanism mount plate 2131 is positioned between the two arms of the U and may be positioned above the mounting bracket 22 in the installed state, as shown in fig. 2. The cleaning medium supply pipe 211 is drivingly connected to the drive mechanism 213 via a transmission bracket 214. The driving mechanism 213 drives the cleaning medium supply pipe 211 to perform an oscillating motion.

The driving mechanism fixing plate 2131 may be a flat plate extending between the two cover plates 111 of the volute casing 11, and two ends of the driving mechanism fixing plate 2131 close to the cover plates 111 and the mounting bracket 22 may be fixed by the structure of the snap-in slot 221 (similar to a card and a slot).

The transmission bracket 214 may also be made of metal, and in this embodiment, the transmission bracket includes a bracket base 2141 and a bracket upper cover 2142, wherein the bracket base 2141 has a first buckle 2143 protruding toward the bracket upper cover 2142, the bracket upper cover 2142 has a bayonet 2144, and the first buckle 2143 and the bayonet 2144 can be buckled with each other, thereby fastening the bracket base 2141 and the bracket upper cover 2142. The bracket base 2141 and the bracket upper cover 2142 are further secured by a first fastener 2145, which may be preferably a screw 2145. The frame base 2141 is recessed to form a track 2146, the cleaning medium supply tube 211 passes through the track 2146, and the shape of the track 2146 is matched with that of the cleaning medium supply tube 211, which is also circular arc. The upper bracket cover 2142 covers the track 2146 and tightly presses the cleaning medium supply pipe 211 as a pressing part, and the shape of the position of the upper bracket cover 2142 corresponding to the cleaning medium supply pipe 211 is matched with that of the cleaning medium supply pipe 211 and is recessed towards the direction far away from the cleaning medium supply pipe 211, so that the cleaning medium supply pipe 211 is limited in three mutually perpendicular directions, and the accuracy of a cleaning track is ensured. As shown in fig. 6, the first latch 2143 and the latch 2144 are engaged to limit the position in the left-right and front-rear directions, and the bracket upper cover 2142 and the rail 2146 are limited in the up-down direction.

The end of the transmission bracket 214 far from the cleaning medium supply pipe 211 is provided with a shaft hole 2147 for the output shaft of the driving mechanism 213 to pass through, i.e. the rail 2146 is disposed adjacent to the end of the transmission bracket 214 far from the shaft hole 2147. During installation, the transmission bracket 214 is sleeved on the output shaft of the driving mechanism 213, and then the second fastening member 2132, such as a screw, is threaded, so as to ensure the reliability of the connection between the transmission bracket 214 and the output shaft of the driving mechanism 23.

The side of the bracket base 2141 of the transmission bracket 214 away from the bracket upper cover 2142 is further provided with a guide ring 2148, and the cleaning medium supply pipe 211 can pass through the bracket base 2141 and the guide ring 2148 to be connected with the conduit 26.

The cleaning mechanism further includes a support bracket 215 fixed to the driving mechanism fixing plate 2131 by means of screws or welding and located on a side of the driving mechanism fixing plate 2131 facing the volute 11, the cleaning medium supply pipe 211 being supported on the support bracket 215 to be movable relative to the support bracket 215, the support bracket 215 preventing the cleaning medium supply pipe 211 from shaking when moving. The driving mechanism fixing plate 2131 is provided with a limiting convex hull 2133 on one side facing the cleaning mechanism supply pipe 211, and when the cleaning medium supply pipe 211 moves towards the interior of the volute 11 and moves to the innermost position, the transmission bracket 214 can be contacted with the limiting convex hull 2133, so that the end point positioning is realized. When the cleaning medium supply pipe 211 moves to the position outside the mouth toward the scroll casing 11, the support bracket 215 limits the position of the cleaning medium supply pipe 211.

The heating module 25 is provided with a second clip 251, and the second clip 251 is engageable with the driving mechanism fixing plate 2131.

When the volute casing is installed, the supporting bracket 215 is firstly installed on the installation bracket 22, and then the installation bracket 22 is fixed on the volute casing 11 by welding or screws; then, the driving mechanism 213 is mounted on the driving mechanism fixing plate 2131, the transmission bracket 214 is mounted on the output shaft of the driving mechanism 213, and then fastening is performed by the second fastening piece 2132; thereafter, the daughter card slot of the driving mechanism fixing plate 2131 is engaged with the mother card slot of the mounting bracket 22, the second hook 251 of the heating module 25 is engaged with the driving mechanism fixing plate 2131, and the driving mechanism fixing plate 2131 and the heating module 25 are fixed by a fastening member such as a screw.

Example two

Referring to fig. 9, the present embodiment is different from the first embodiment in that the rack base 2141 'and the rack upper cover 2142' are fixed by means of snap-fitting, so that the cleaning mechanism supply pipe 211 is pressed and fixed.

EXAMPLE III

Referring to fig. 10, the difference between the present embodiment and the second embodiment is that the first latch 2143' is located at an end away from the shaft hole 2147 and protrudes in a direction away from the rail 2146, which can be disposed on the bracket base 2141 "or the bracket upper cover 2142". The stand base 2141 "and the stand upper cover 2142" are relatively rotatable. When the second fastener 2132 is placed, the end with the shaft hole 2147 can be raised.

Example four

Referring to fig. 11, in the present embodiment, the difference from the third embodiment is that the first latch 2143 ″ is zigzag, so that the first latch 2143 ″ is relatively easy to mount and fasten when being buckled, and the positioning effect on the left and right in the mounting process as shown in fig. 11 is relatively good.

EXAMPLE five

Referring to fig. 12, in the present embodiment, the difference from the first embodiment is that the bracket upper cover 2142 is not provided, but the screw 2149 is used as a pressing component, and the screw 2149 passes through the wall of the bracket base 2141 'adjacent to the rail 2146 from the outside of the transmission bracket 214' and penetrates into the rail 2146, so as to abut against the outside of the pipe wall of the cleaning medium supply pipe 211, and the cleaning medium supply pipe 211 is pressed against the transmission bracket 214 'to realize the positioning and fastening with the transmission bracket 214'.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (18)

1. A cleaning mechanism for a range hood, which comprises a cleaning medium supply pipe (211), a driving mechanism (213) of a nozzle (212) for driving the cleaning medium supply pipe (211) to move, and a transmission bracket (214) for transmitting the output of the driving mechanism (213) to the cleaning medium supply pipe (211), wherein the nozzle (212) is used for receiving the cleaning medium supplied by the cleaning medium supply pipe (211) and spraying the cleaning medium to an object to be cleaned, and is characterized in that: the transmission bracket (214) comprises a bracket base (2141; 2141 '), a track (2146) is formed on the bracket base (2141; 2141') in a concave manner, the cleaning medium supply pipe (211) penetrates through the track (2146), and the shape of the track (2146) is matched with that of the cleaning medium supply pipe (211); the transmission bracket (214) also comprises a pressing part which presses the cleaning medium supply pipe (211) in the track (2146) so as to be fixed with the bracket base (2141; 2141').

2. The cleaning mechanism for a range hood according to claim 1, wherein: the pressing part is a support upper cover (2142; 2142 '), the support upper cover (2142; 2142 ') covers the track (2146) to press the cleaning medium supply pipe (211), and the shape of the support upper cover (2142; 2142 ') corresponding to the cleaning medium supply pipe (211) is matched with the cleaning medium supply pipe (211).

3. The cleaning mechanism for a range hood according to claim 2, wherein: the improved bracket is characterized in that a first buckle (2143) protruding towards the direction of the bracket upper cover (2142) is arranged on the bracket base (2141), a bayonet (2144) is arranged on the bracket upper cover (2142), the first buckle (2143) is clamped with the bayonet (2144) to clamp the bracket base (2141) and the bracket upper cover (2142), and the bracket base (2141) and the bracket upper cover (2142) are fixed through a first fastener (2145).

4. The cleaning mechanism for a range hood according to claim 3, wherein: and a guide ring (2148) is further arranged on one side, away from the support upper cover (2142), of the support base (2141) of the transmission support (214), and one end, away from the nozzle (212), of the cleaning medium supply pipe (211) penetrates through the support base (2141) and the guide ring (2148).

5. The cleaning mechanism for a range hood according to claim 2, wherein: the bracket base (2141 ') and the bracket upper cover (2142') are fixed in a buckling manner.

6. The cleaning mechanism for a range hood according to claim 2, wherein: one end of the transmission bracket (214) is connected with the driving mechanism (213), the track (2146) is arranged at the position, close to the end, far away from the driving mechanism (213), of the transmission bracket (214), one end, far away from the end, connected with the driving mechanism (213), of one of the bracket base (2141 ') and the bracket upper cover (2142') is provided with a first buckle (2143 '; 2143') protruding towards the direction far away from the track (2146), and the first buckle (2143 '; 2143') is buckled with the other one of the bracket base (2141 ') and the bracket upper cover (2142').

7. The cleaning mechanism for a range hood according to claim 6, wherein: the first buckle (2143') is Z-shaped.

8. The cleaning mechanism for a range hood according to claim 2, wherein: the pressing part is a screw (2149), and the screw (2149) penetrates through the wall of the bracket base (2141) adjacent to the rail (2146) from the outside of the transmission bracket (214) and penetrates into the rail (2146), so as to be abutted against the outer side of the pipe wall of the cleaning medium supply pipe (211).

9. A belt cleaning device for range hood, its characterized in that: the cleaning device is applied with the cleaning mechanism as claimed in any one of claims 1-8.

10. The cleaning device for a range hood according to claim 9, wherein: the cleaning device comprises a mounting bracket (22) fixed with an object to be cleaned, and the cleaning mechanism is mounted on the object to be cleaned through the mounting bracket (22).

11. The cleaning device for a range hood according to claim 10, wherein: the driving mechanism (213) is fixed on the mounting bracket (22) through a driving mechanism fixing plate (2131), and the driving mechanism fixing plate (2131) is connected with the mounting bracket (22) in a clamping mode.

12. The cleaning device for a range hood according to claim 10, wherein: the cleaning mechanism further comprises a supporting bracket (215), the supporting bracket (215) is fixed with the mounting bracket (22), and the cleaning medium supply pipe (211) is supported on the supporting bracket (215) and can move relative to the supporting bracket (215).

13. The cleaning device for a range hood according to claim 11, wherein: and a limiting convex hull (2133) which can be contacted with the transmission bracket (214) is arranged on one side of the driving mechanism fixing plate (2131) facing the cleaning medium supply pipe (211).

14. The cleaning device for a range hood according to claim 10, wherein: the cleaning device further comprises a heating module (25) for heating the cleaning medium, the cleaning medium supply pipe (211) being in fluid communication with the heating module (25) via a conduit (26), the heating module (25) being mounted on the mounting bracket (22).

15. The cleaning device for a range hood according to claim 14, wherein: the driving mechanism (213) is fixed on the mounting bracket (22) through a driving mechanism fixing plate (2131), the heating module (25) is provided with a second buckle (251), and the second buckle (251) is clamped with the driving mechanism fixing plate (2131).

16. The utility model provides a fan belt cleaning device for range hood, includes as waiting to wash fan system (1) of object, its characterized in that: a cleaning device for a range hood as claimed in any one of claims 9 to 15.

17. The fan cleaning device for a range hood according to claim 16, wherein: the fan system (1) comprises a volute (11) and an impeller (12) arranged in the volute (11), the volute (11) comprises two cover plates (111) arranged at intervals and a ring wall (112) located between the two cover plates (111), and a nozzle (212) of the cleaning mechanism can enter the volute (11) from the ring wall (112).

18. A range hood, its characterized in that: the cleaning mechanism for the range hood as claimed in any one of claims 1 to 8 is applied.

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