CN216221316U - Dust collector with filter self-cleaning function - Google Patents

Abstract

The utility model belongs to the technical field of cleaning equipment, and discloses a dust collector with a filter self-cleaning function. The dust collector with the filter self-cleaning function comprises a machine shell, a filter and a knocking mechanism. The knocking mechanism comprises a wind power driving assembly and a knocking piece, the wind power driving assembly can be selectively communicated with the air inlet, and the wind power driving assembly can drive the knocking piece to knock the filter or the machine shell under the driving of air flow so as to enable the filter to vibrate. The knocking mechanism can be selectively communicated with the air inlet, so that a user can selectively start the self-cleaning function according to needs, the dust collector is prevented from always performing self-cleaning on the filter in the working process, the noise generated when the dust collector works is reduced, and the use experience of the user is improved.

Description

Dust collector with filter self-cleaning function

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a dust collector with a filter self-cleaning function.

Background

The vacuum cleaner is a device which uses a fan to generate negative pressure to generate suction force so as to suck dust on a floor, a carpet or other positions. The dust collector is internally provided with a filter which is used for filtering impurities such as dust, hair and the like carried in the airflow. The filter is generally made of filter HEPA, and when the dust collector is used, a lot of dust and sundries are easily accumulated in the folds on the outer surface of the filter HEPA, so that the filtering effect of the filter HEPA is influenced.

In order to realize self-cleaning of the filter, an impeller and a scraper blade are arranged in part of the dust collector, the impeller can be driven by airflow to rotate when the dust collector works, and the scraper blade is driven to bypass the filter to rotate and scratch the surface of the filter, so that impurities such as dust, gravel and the like accumulated on the surface of the filter are scraped. Although the self-cleaning function of the filter can be realized, the self-cleaning function is started simultaneously with the starting of the dust collector, and a user cannot select the self-cleaning world as required, so that the noise is high during the working of the dust collector, and the use experience is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dust collector with a filter self-cleaning function, which can solve the problem that the existing filter is inflexible in self-cleaning starting time and causes high noise when the dust collector works.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a cleaner having a filter self-cleaning function, comprising:

the dust collector comprises a machine shell, a dust collecting cavity is formed in the machine shell, an air inlet and an air outlet are formed in the machine shell, and the air inlet is communicated with the dust collecting cavity;

the filter is arranged in the dust collecting cavity;

the knocking mechanism is arranged in the shell and comprises a wind power driving assembly and a knocking piece, the wind power driving assembly can be selectively communicated with the air inlet, and the wind power driving assembly is configured to drive the knocking piece to knock the filter or the shell under the drive of air flow so as to enable the filter to vibrate.

Wherein the cleaner having a filter self-cleaning function further comprises:

and one end of the dust collection pipe is connected with the air inlet, and the other end of the dust collection pipe can be detachably connected with the wind power driving assembly.

The shell is provided with a communicating opening, the communicating opening is connected with the wind power driving assembly, and the other end of the dust collection pipe can be inserted into the communicating opening.

Wherein the wind driven assembly includes an inlet connected to the communication port, the inlet selectively communicating with the communication port.

Wherein an opening and closing assembly is disposed within the inlet, the opening and closing assembly being configured to selectively open or close the inlet.

Wherein the wind power drive assembly comprises:

the air inlet is formed in the shell, an impeller cavity is formed in the shell, an inlet and an outlet which are communicated with the impeller cavity are formed in the shell, and the inlet can be selectively communicated with the air inlet;

the impeller is rotatably arranged in the shell;

and the transmission structure is connected with a rotating shaft of the impeller, and the transmission structure drives the knocking piece to knock the filter or the machine shell.

Wherein the impeller comprises:

the wheel body and the rotating shaft are coaxially arranged and fixed;

the blades are connected with the wheel body and are arranged at intervals along the circumferential direction of the wheel body;

the blade is positioned between the two side baffles and is respectively connected with the two side baffles.

Wherein, transmission structure includes:

the driving gear is connected with the rotating shaft;

a driven gear set engaged with the drive gear;

the cam is connected with the driven gear set and can be intermittently abutted against the knocking piece to push the knocking piece to move.

The driven gear set comprises at least two driven gears which are meshed in sequence, the driven gear at one end is meshed with the driving gear, and the driven gear at the other end is coaxially arranged with and connected with the cam.

Wherein, be provided with the limiting plate on the piece of strikeing, the cam is located between limiting plate and the casing.

Wherein the knocking mechanism further comprises an elastic piece, the elastic piece is connected with or abutted against the shell and the knocking piece, and the elastic piece is configured to provide at least part of driving force for the knocking piece to knock the filter or the machine shell.

The dust collector with the filter self-cleaning function further comprises a fan, the fan is arranged in the machine shell, and the fan is configured to drive airflow to sequentially pass through the air inlet, the dust collecting cavity, the filter and the air outlet.

The shell comprises a dust collecting box, a partition plate and an upper cover, the upper cover is connected with the dust collecting box, the partition plate is arranged between the dust collecting box and the upper cover, a dust collecting cavity is formed between the partition plate and the dust collecting box, the filter is fixedly connected to the bottom of the partition plate, the knocking mechanism is arranged on the partition plate and located between the upper cover and the partition plate, the knocking mechanism is configured to knock the partition plate, and the partition plate and the filter form a resonance state after being knocked.

The utility model has the beneficial effects that:

in the dust collector with the filter self-cleaning function, the knocking mechanism is driven by wind power to knock, so that the filter can vibrate to achieve the self-cleaning effect, and the knocking mechanism can be selectively communicated with the air inlet, so that a user can select to start the self-cleaning function according to needs, the dust collector is prevented from being self-cleaned all the time in the working process, the noise of the dust collector during working is reduced, and the use experience of the user is improved.

Drawings

FIG. 1 is a schematic view of a knocking mechanism coupled to a suction pipe of a vacuum cleaner having a self-cleaning function of a filter according to the present invention;

FIG. 2 is a schematic view of the striking mechanism provided by the present invention from one perspective;

FIG. 3 is a schematic structural view of a striking mechanism provided by the present invention from another perspective;

FIG. 4 is a front view of the plexor member of the present invention as it is driven down and up by the wind power assembly;

FIG. 5 is a front view of a plexor member of the present invention as it is struck;

FIG. 6 is a schematic structural view of a plexor member provided by the present invention;

FIG. 7 is a schematic structural view of an impeller provided by the present invention;

FIG. 8 is an axial cross-sectional view of a striking mechanism provided by the present invention.

In the figure:

1. a dust collection pipe; 2. a knocking mechanism; 21. a plexor member; 211. a rod body; 2111. a rib; 212. a knocking head; 213. a limiting part; 213a, a top stopper; 213b, a bottom stopper; 214. an abutting portion; 215. a limiting plate; 22. a wind driven assembly; 221. a housing; 2211. an end cap; 2212. a bottom case; 2213. a communicating pipe; 2214. an inlet; 2215. an outlet; 2216. a guide sleeve; 222. an impeller; 2221. a rotating shaft; 2222. a wheel body; 2223. a blade; 2224. a side dam; 223. a transmission structure; 2231. a driving gear; 2232. a first driven gear; 2233. a second driven gear; 2234. a cam; 23. an elastic member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a dust collector with a filter self-cleaning function, which comprises a machine shell, a filter and a fan. A dust collecting cavity is formed in the machine shell, and the filter is arranged in the dust collecting cavity. The shell is provided with an air inlet and an air outlet, and the air inlet is communicated with the dust collection cavity. The fan sets up in the casing for drive air current flows according to predetermineeing the orbit, so that the outside air current of casing gets into the collection dirt intracavity through the air intake, and the air current that gets into the collection dirt intracavity filters through the filter, and the impurity of filtering is piled up in the collection dirt intracavity, and the air current after the filtration is discharged through the air outlet.

Specifically, the filter sets up in the air outlet department of dust collecting chamber, and the outer wall of filter is provided with filters the entry, and the top of filter is provided with the filtration export, the entry and the filtration export intercommunication of fan. The air flow entering the dust collecting cavity enters the filtering channel in the filter through the filtering inlet, enters the fan through the filtering outlet and is discharged through the fan outlet on the fan.

As the filter is used for a longer time, impurities are easily accumulated on the surface of the filter, thereby affecting the filtering effect. In order to solve the above problem, the vacuum cleaner in this embodiment further includes a knocking mechanism 2, the knocking mechanism 2 is disposed in the housing, and the knocking mechanism 2 can vibrate the filter to shake off impurities on the surface of the filter, thereby implementing a self-cleaning function.

Specifically, the cabinet includes a dust box, a partition plate, and an upper cover. The upper cover is connected with the dust collecting box, the partition plate is arranged between the dust collecting box and the upper cover, and a dust collecting cavity is formed between the partition plate and the dust collecting box. The filter is fixedly connected with the bottom surface of the clapboard, namely the surface of the clapboard facing the dust collection cavity. Fan and knocking mechanism 2 all set up the top surface at the baffle, and lie in between baffle and the upper cover, and knocking mechanism 2 can strike the baffle, and the baffle is strikeed the back and is formed resonance state with the filter. In the embodiment, the knocking mechanism 2 drives the filter to vibrate by knocking the partition plate, so that enough installation space can be provided for a structure (such as a fan) matched with the filter, and the space between the upper cover and the partition plate is reasonably utilized; and the knocking mechanism 2 does not directly knock the filter, so that the filter can be prevented from being damaged, and the fault rate of the dust collector is reduced.

In some embodiments, the knocking mechanism 2 may directly knock the filter, and the specific knocking position may be set according to the actual spatial layout, as long as the filter can be vibrated to achieve self-cleaning.

In order to avoid increasing the operation cost of the dust collector by the knocking mechanism 2, in the embodiment, as shown in fig. 1, the knocking mechanism 2 includes a wind power driving assembly 22 and a knocking member 21, the wind power driving assembly 22 can be selectively communicated with the air inlet, and the wind power driving assembly 22 can drive the knocking member 21 to knock the partition plate under the driving of the air flow, so that the filter vibrates, and the cleaning of the filter is further realized. In the embodiment, the knocking mechanism 2 is driven by wind power, so that the operation cost of the dust collector can be reduced without additionally using energy for driving. When the filter needs to be cleaned, the air inlet is communicated with the wind power driving assembly 22, so that the self-cleaning function of the filter is started, the dust collector is prevented from always cleaning the filter in the working process, the noise generated when the dust collector works is reduced, and the use experience of a user is improved.

In order to realize the selective communication between the air inlet and the wind power driving component 22, the dust collector with the self-cleaning function of the filter also comprises a dust collection pipe 1, one end of the dust collection pipe 1 is connected with the air inlet, and the other end of the dust collection pipe can be detachably connected with the wind power driving component 22. When the dust collector needs to perform dust collection operation, the other end of the dust collection pipe 1 is separated from the wind power driving assembly 22, and the other end of the dust collection pipe 1 is used as a dust collection port to perform a dust collection function. Alternatively, the other end of the dust suction pipe 1 may be connected to a floor brush mechanism or other dust suction head during a dust suction operation, so as to improve a dust suction effect. When the filter needs to be cleaned, the other end of the dust collection pipe 1 is connected with the wind power driving assembly 22, and the fan drives the airflow to flow, so that the wind power driving assembly 22 drives the knocking piece 21 to knock under the driving of the airflow, and the filter is vibrated to realize cleaning.

Alternatively, the fan may be rotated forward or backward as desired. When the fan rotates forwards, airflow can enter the air inlet, the dust collection cavity, the filter and the air outlet from the outside of the dust collector in sequence, so that the other end of the dust collection pipe 1 performs dust collection operation; when the fan rotates reversely, airflow enters the dust collection cavity through the fan, then enters the dust collection pipe 1 through the air inlet and is discharged through the dust collection pipe 1, so that the other end of the dust collection pipe 1 can perform blowing operation.

In order to facilitate the communication between the other end of the dust suction pipe 1 and the wind power driving assembly 22, the casing is provided with a communication port, the communication port is connected with the wind power driving assembly 22, and the other end of the dust suction pipe 1 can be inserted into the communication port as required, so that the air inlet is communicated with the wind power driving assembly 22.

As shown in fig. 2 and 3, the wind drive assembly 22 includes a housing 221, an impeller 222, and a transmission structure 223. An impeller cavity is formed in the shell 221, an inlet 2214 and an outlet 2215 which are communicated with the impeller cavity are formed in the shell 221, and the inlet 2214 can be communicated with the air inlet through the communicating port and the dust suction pipe 1. The impeller 222 is rotatably disposed in the housing 221, and the transmission structure 223 is communicated with the rotating shaft 2221 of the impeller 222 and can drive the knocking member 21 to perform a knocking action. When the dust suction pipe 1 is communicated with the inlet 2214 on the casing 221 through the communication port, the airflow enters the impeller cavity through the dust suction pipe 1, the communication port and the inlet 2214, and pushes the impeller 222 to rotate relative to the casing 221. After the impeller 222 rotates, the transmission structure 223 is driven by the rotating shaft 2221 to drive the knocking member 21 to perform a knocking action. The impeller 222 is matched with air flow to realize wind power driving, and the wind power driving device is simple in structure and low in cost.

When the filter does not need to be cleaned, in order to prevent impurities such as dust outside the vacuum cleaner from entering the housing 221 through the communication port and the inlet 2214 and affecting the service life of the wind power driving assembly 22, optionally, an opening and closing assembly is disposed in the inlet 2214, and the opening and closing assembly can selectively open or close the inlet 2214. When the filter needs to be cleaned, the opening and closing assembly opens the inlet 2214, so that the dust suction pipe 1 can be communicated with the inlet 2214; when cleaning of the filter is not required, the opening and closing assembly closes the inlet 2214 to block foreign substances from entering the housing 221, thereby functioning to protect the wind driving assembly 22.

Alternatively, the opening and closing assembly may be an on-off valve, which may be a manual on-off valve or an electric on-off valve, and the inlet 2214 is opened or closed through the on-off valve, which is simple to operate.

Specifically, the housing 221 includes an end cap 2211, a bottom case 2212, and a communication pipe 2213. An axial end of the bottom housing 2212 is open, the end cap 2211 is fastened to the open end of the bottom housing 2212, an outlet 2215 is disposed on the outer circumferential surface of the bottom housing 2212, the communication pipe 2213 is communicated with the outer circumferential surface of the bottom housing 2212, and the communication pipe 2213 is configured as an inlet 2214. The communicating tube 2213 is opposite to the communicating opening on the casing, and the dust collecting tube 1 is inserted into the communicating tube 2213 through the communicating opening to realize the communication between the air inlet and the wind power driving assembly 22.

Optionally, the end cap 2211 and the bottom housing 2212 may be fixed by screws to facilitate disassembly and assembly.

Optionally, dust absorption pipe 1 can be connected with communicating pipe 2213 joint or threaded connection to make things convenient for dust absorption pipe 1 and the dismouting of communicating pipe 2213, and be favorable to improving the stability when dust absorption pipe 1 is connected with communicating pipe 2213.

Further, the communicating tube 2213 is arranged opposite to the outlet 2215, so that after the airflow enters the housing 221, the impeller 222 can be pushed to rotate 180 degrees and then discharged from the outlet 2215, the driving force of the airflow on the impeller 222 is improved, and the transmission structure 223 can smoothly drive the knocking piece 21 to knock.

Further, the plexor member 21 is perpendicular to the partition, as shown in fig. 1, with the length direction of the plexor member 21 being the vertical direction. The lower end of the plexor member 21 is used to beat the partition, and the cams 2234 can intermittently push the plexor member 21 upward. When cam 2234 abuts plexor member 21, cam 2234 can push plexor member 21 upward so that the bottom end of plexor member 21 is raised. When cam 2234 continues to rotate away from plexor member 21, which is no longer pushed by cam 2234, will fall under its own weight, thereby knocking against the partition. Each revolution of cam 2234 causes one stroke of strike member 21 to be completed, i.e., one stroke. By arranging the plexor member 21 vertically and arranging the cam 2234 to push the plexor member 21 upward, the plexor member 21 can be made to perform a falling motion under its own weight, i.e., the plexor member 21 does not require a driving force for its falling.

In some embodiments, the top end of the rapper 21 is used to rapper the partition, i.e. the rapper 21 rappers the partition during the upward movement and detaches from the partition during the fall, also making it possible to vibrate the filter.

In some embodiments, the cam 2234 may drive the plexor member 21 to move in a direction that is at an angle to the vertical, such as where the plexor member 21 is tilted with respect to the vertical or where the plexor member 21 is horizontally disposed, and the cam 2234 drives the plexor member 21 to move to achieve tapping. In this case, a reset member is connected to the striking member 21, and the reset member drives the striking member 21 to move in a direction opposite to the direction in which the cam 2234 drives the striking member 21, so as to perform the reciprocating movement of the striking member 21.

To avoid that the airflow affects the gearing 223, the gearing 223 is arranged outside the housing 221. The shaft 2221 of the impeller 222 extends beyond the end cap 2211 to mate with the drive structure 223.

As shown in fig. 3, the transmission structure 223 includes a driving gear 2231, a driven gear set, and a cam 2234. The driving gear 2231 is coaxially disposed and fixed with the rotating shaft 2221, and the driving gear 2231 is engaged with the driven gear set. Cam 2234 is connected to a driven gear set. When the impeller 222 is driven by the airflow to rotate, the impeller 222 drives the driving gear 2231 to rotate through the rotating shaft 2221. The driving gear 2231 is engaged with the driven gear set to rotate the cam 2234, so that the cam 2234 intermittently abuts against the striker 21 to push the striker 21 to move, thereby performing a striking operation. In this embodiment, the knocking member 21 is intermittently pushed to move by the gear transmission in cooperation with the cam 2234, so that the filter is self-cleaned.

Further, the transmission ratio of the transmission structure 223 is less than 1, so that the rotating speed of the cam 2234 is less than that of the rotating shaft 2221, and thus the knocking piece 21 can knock with less frequency, which is beneficial to reducing the noise when the filter is self-cleaned; the transmission ratio of the transmission structure 223 is less than 1, so that the output torque of the cam 2234 is greater than that of the rotating shaft 2221, the pushing force of the cam 2234 on the knocking piece 21 is increased, and knocking action is easier to perform.

In order to make the transmission ratio of the transmission structure 223 smaller than 1, the diameter of the driving gear 2231 is smaller than that of the driven gear in the driven gear set, so as to realize speed reduction and torque increase transmission. Specifically, the driven gear set includes two driven gears, one of which is engaged with the driving gear 2231, and the other of which is disposed coaxially with and connected to the cam 2234. By providing two driven gears, a two-stage reduction transmission can be achieved to further increase the output torque.

In some embodiments, more than two driven gears may be provided to achieve multi-stage reduction. The number and size of the driven gears can be set according to actual requirements.

To reduce the space occupied by the driven gear set, the driven gear not connected to the cam 2234 is a stepped gear. The tower gear comprises two gear parts which are coaxially and fixedly connected, and the two gear parts have different diameters. The gear portion with a larger diameter is in meshing transmission with the driving gear 2231 on the front side of the transmission or the driven gear on the previous stage, and the gear portion with a smaller diameter is in meshing transmission with the driven gear on the rear side of the transmission, so that speed reduction transmission is realized on the basis that a smaller space is occupied along the radial direction of the driving gear 2231.

For convenience of description, the two driven gears in the present embodiment are a first driven gear 2232 and a second driven gear 2233, respectively. The first driven gear 2232 is in meshing transmission with the driving gear 2231 and the second driven gear 2233, and the second driven gear 2233 is coaxially disposed with the cam 2234 and fixed. In this embodiment, the first driven gear 2232 is a stepped gear, which includes a small diameter gear portion and a large diameter gear portion that are coaxially disposed, the large diameter gear portion is in meshing transmission with the driving gear 2231, and the small diameter gear portion is in meshing transmission with the second driven gear 2233, so that a transmission ratio between the driving gear 2231 and the first driven gear 2232 is less than 1, and a transmission ratio between the first driven gear 2232 and the second driven gear 2233 is less than 1.

Further, when the second driven gear 2233 is engaged with the small-diameter gear portion, a partial end face of the second driven gear 2233 is engaged with the end face of the large-diameter gear portion, and the end face on one side in the axial direction of the second driven gear 2233 is engaged with the end cover 2211, so that the axial positioning of the first driven gear 2232 can be realized, the improvement of the positioning accuracy of the driven gear set is facilitated, and the transmission stability of the transmission structure 223 is improved.

In order to improve the axial positioning accuracy of the second driven gear 2233 and the cam 2234, as shown in fig. 4, the limiting plate 215 is configured on the knocking element 21, the cam 2234 and the second driven gear 2233 are both located between the limiting plate 215 and the end cover 2211, and through the cooperation between the limiting plate 215 and the end cover 2211, the axial positioning of the cam 2234 and the second transmission gear can be realized, which is beneficial to improving the positioning accuracy of the driven gear set and improving the transmission stability of the transmission structure 223.

In this embodiment, the striking member 21 further includes a rod 211 and an abutting portion 214. The abutting portion 214 is provided on the top of the rod body 211, and the cam 2234 can abut against the bottom surface of the abutting portion 214 to push the striker 21 to move upward. The limiting plate 215 extends downward from the bottom end of the abutting part 214, and at least a part of the cam 2234 is always located in the space surrounded by the limiting plate 215, the abutting part 214 and the end cap 2211, so as to ensure that the cam 2234 can smoothly abut against the bottom surface of the abutting part 214 during each rotation.

In order to avoid the integral scrapping of the knocking part 21 due to knocking abrasion, the bottom of the rod body 211 is detachably connected with a knocking head 212, and the knocking head 212 is used for knocking the partition plate. The knocking head 212 performs knocking action and is easy to wear. When the knocking head 212 cannot be used due to abrasion, only the knocking head 212 can be replaced, so that the rest part of the knocking piece 21 can still be used continuously, and the maintenance cost is reduced.

Further, the material of the striking head 212 may be made of a stronger material. Compared with the method of selecting the overall material of the knocking member 21 with a material with better strength, the present embodiment can reduce the production cost of the knocking member 21 by upgrading only the material of the knocking head 212. In addition, the material with better strength is generally higher in density, and on the basis of not changing the size of the knocking piece 21, the whole weight of the knocking piece 21 can be reduced by only upgrading the material of the knocking head 212, so that the weight of the dust collector is reduced, the dust collector is lighter and is convenient for a user to use.

In this embodiment, the rod 211 is made of a plastic material, and the striking head 212 is made of a metal material. The rod body 211 is made of plastic material, so that the weight is light and the cost is low. The knocking head 212 made of metal material has good strength, is not easy to deform and wear, and has long service life.

Alternatively, the striking head 212 may be connected to the rod 211 by a fastener such as a screw or a pin, so as to facilitate the detachment of the striking head 212.

In order to avoid the deviation of the moving direction of the knocking member 21 from affecting the knocking effect, the end cap 2211 is further provided with a guide sleeve 2216, and the rod body 211 is slidably arranged in the guide sleeve 2216. Can provide the guide effect for body of rod 211 through uide bushing 2216 to it is accurate to guarantee body of rod 211 direction of motion, avoids body of rod 211 to block.

In order to avoid the rod 211 from being separated from the guide sleeve 2216, as shown in fig. 5, the knocking member 21 further includes two spacing portions 213 disposed at an interval, the guide sleeve 2216 is located between the two spacing portions 213, and the spacing portions 213 can abut against the end surface of the guide sleeve 2216. Specifically, two spacing portions 213 are top spacing portion 213a and bottom spacing portion 213b respectively, and top spacing portion 213a sets up at the top of body of rod 211, is constructed with bottom spacing portion 213b on the head 212 of knocking, and top spacing portion 213a and bottom spacing portion 213b all follow the radial protrusion in the outer peripheral face of body of rod 211 to can with the terminal surface butt of uide bushing 2216, thereby restrict the member and break away from with uide bushing 2216.

In order to ensure that the knocking member 21 can provide enough knocking force for the partition after falling, the knocking mechanism 2 further comprises an elastic member 23, two ends of the elastic member 23 are respectively connected with or abutted to the shell 221 and the knocking member 21, and the elastic member 23 can drive the knocking member 21 to move downwards so as to provide at least part of driving force for the knocking member 21 to knock the partition. By providing the elastic member 23, the striking force of the striking member 21 can be increased to improve the cleaning effect of the filter.

In this embodiment, the elastic member 23 is a spring to reduce the cost of the striking mechanism 2, and when the cam 2234 pushes the striking member 21 upward, the spring is compressed as shown in fig. 4; when the cam 2234 is separated from the plexor member 21, as shown in fig. 5, the plexor member 21 falls down by its own weight and the elastic force of the spring to perform the plexor. The spring cover is established outside body of rod 211 and at least a part is located uide bushing 2216, uide bushing 2216 can play the guide effect for the deformation of spring, avoids the spring crooked at the deformation in-process to avoid the spring to the relative moving direction slope of member of the elastic force direction that the member was applyed to the member, in order to avoid the member card to pause.

Further, the spring is sleeved outside the rod body 211 and is positioned inside the guide sleeve 2216. The top end of the spring is abutted or connected with the guide sleeve 2216, and the bottom end of the spring is abutted or connected with the bottom limiting part 213. When cam 2234 pushes plexor member 21 upward, the spring is compressed as shown in FIG. 4; when the cam 2234 is separated from the plexor member 21, as shown in fig. 5, the plexor member 21 falls down by its own weight and the elastic force of the spring to perform the plexor.

To prevent the rod from rotating relative to the guide sleeve 2216 and thereby affecting the engagement of the abutment 214 with the cam 2234, a rib 2111 is provided on the rod 211, the rib 2111 extending along the length of the rod, as shown in fig. 6. Correspondingly, the inner wall of the guide sleeve 2216 is provided with grooves which mate with the ribs 2111. When the rod is mated with the guide sleeve 2216, the rib 2111 extends into the groove, and as the rod moves relative to the guide sleeve 2216, the rib 2111 can slide within the groove. By providing the rib 2111 and the groove, the rotation of the rod 211 relative to the guide sleeve 2216 can be limited, thereby ensuring that the abutment 214 on the striking element 21 can engage with the cam 2234.

In some embodiments, ribs 2111 may be provided on the inner wall of the guide sleeve 2216, and correspondingly, grooves may be provided on the rod, which may also limit the rotation of the rod relative to the guide sleeve 2216.

To better convert wind energy into mechanical energy, as shown in fig. 7 and 8, the impeller 222 includes a wheel body 2222, a rotating shaft 2221, a plurality of blades 2223, and two annular side guards 2224. The wheel body 2222 and the rotating shaft 2221 are coaxially disposed and fixed, and the rotating shaft 2221 is rotatably disposed in the housing 221, and has one end extending out of the housing 221 to be connected to the transmission gear. The plurality of blades 2223 are connected to the outer circumferential surface of the wheel body 2222, and are spaced apart from each other. Two annular side shields 2224 are respectively disposed on the end surfaces of the two sides of the wheel body 2222, and the blade 2223 is located between the two side shields 2224 and is connected to the two side shields 2224. By providing the two side baffles 2224, the two adjacent blades 2223 are respectively matched with the outer peripheral surfaces of the two side baffles 2224 and the wheel body 2222 to form an air collecting cavity with an opening on one side, and the air flow entering the casing 221 can be collected by the air collecting cavity to improve the air collecting capacity of the impeller 222, so that the wind energy can be efficiently converted into mechanical energy.

When the dust collector with the filter self-cleaning function needs to collect dust, the other end of the dust collection pipe is separated from the communicating opening on the shell, so that the dust can enter the dust collection pipe from the other end of the dust collection pipe and enter the integrated cavity through the air inlet. After the airflow carrying dust is filtered by the filter, impurities are accumulated in the integrated cavity, and the filtered airflow is discharged through the air outlet, so that dust collection operation is realized; when the filter of the dust collector needs to be cleaned, the other end of the dust collection pipe is connected with the casing and communicated with the communication port, the fan drives the airflow in the casing 221 in the wind power driving assembly 22 to flow after being started, and the airflow drives the impeller 222 to rotate so as to drive the knocking piece 21 to perform knocking action through the transmission structure 223, so that the cleaning of the filter is realized.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A vacuum cleaner having a filter self-cleaning function, comprising:

the dust collector comprises a machine shell, a dust collecting cavity is formed in the machine shell, an air inlet and an air outlet are formed in the machine shell, and the air inlet is communicated with the dust collecting cavity;

the filter is arranged in the dust collecting cavity;

the filter comprises a shell, and is characterized by comprising a knocking mechanism (2), wherein the knocking mechanism (2) is arranged in the shell, the knocking mechanism (2) comprises a wind power driving assembly (22) and a knocking piece (21), the wind power driving assembly (22) can be selectively communicated with an air inlet, and the wind power driving assembly (22) is configured to be capable of driving the knocking piece (21) to knock the filter or the shell under the drive of air flow so that the filter vibrates.

2. The cleaner having a filter self-cleaning function according to claim 1, further comprising:

the dust collection device comprises a dust collection pipe (1), wherein one end of the dust collection pipe (1) is connected with the air inlet, and the other end of the dust collection pipe (1) can be detachably connected with the wind power driving component (22).

3. The vacuum cleaner with filter self-cleaning function as claimed in claim 2, wherein the housing is provided with a communication port connected with the wind power driving assembly (22), and the other end of the suction pipe (1) is inserted into the communication port;

optionally, the wind driven assembly (22) comprises an inlet (2214) connected to the communication port, the inlet (2214) being selectively in communication with the communication port;

optionally, an opening and closing assembly is disposed within the inlet (2214) and is configured to selectively open or close the inlet (2214).

4. Vacuum cleaner with filter self-cleaning function according to any of claims 1-3, characterized in that the wind driven assembly (22) comprises:

a housing (221), wherein an impeller cavity is formed in the housing (221), an inlet (2214) and an outlet (2215) which are communicated with the impeller cavity are arranged on the housing (221), and the inlet (2214) can be selectively communicated with the air inlet;

an impeller (222) rotatably disposed in the housing (221);

and the transmission structure (223) is connected with a rotating shaft (2221) of the impeller (222), and the transmission structure (223) drives the knocking piece (21) to knock the filter or the machine shell.

5. The vacuum cleaner with filter self-cleaning function as claimed in claim 4, wherein the impeller (222) includes:

the wheel body (2222) and the rotating shaft (2221) are coaxially arranged and fixed;

a plurality of blades (2223) that are connected to the wheel body (2222) and are provided at intervals in the circumferential direction of the wheel body (2222);

the two annular side baffles (2224) are respectively arranged on the end surfaces of the two sides of the wheel body (2222), and the blade (2223) is positioned between the two side baffles (2224) and is respectively connected with the two side baffles (2224).

6. Vacuum cleaner with filter self-cleaning function according to claim 4, characterized in that said transmission structure (223) comprises:

the driving gear (2231), the said driving gear (2231) is connected with said spindle (2221);

a driven gear set meshed with the drive gear (2231);

a cam (2234) connected to the driven gear set, the cam (2234) being intermittently abuttable against the plexor member (21) to urge movement of the plexor member (21).

7. The vacuum cleaner with filter self-cleaning function as claimed in claim 6, wherein the driven gear set comprises at least two sequentially engaged driven gears, the driven gear of one end of the driven gear set is engaged with the driving gear (2231), and the driven gear of the other end is coaxially disposed and connected with the cam (2234);

optionally, a limit plate (215) is arranged on the knocking piece (21), and the cam (2234) is located between the limit plate (215) and the housing (221).

8. The vacuum cleaner with filter self-cleaning function as claimed in claim 4, wherein the knocking mechanism (2) further comprises an elastic member (23), the elastic member (23) is connected with or abutted against the housing (221) and the knocking member (21), and the elastic member (23) is configured to provide at least a part of driving force for the knocking member (21) to knock the filter or the housing.

9. The vacuum cleaner with filter self-cleaning function of any one of claims 1 to 3, further comprising a blower disposed within the housing, the blower configured to drive an airflow through the intake vent, the dust collection chamber, the filter, and the outtake vent in sequence.

10. The vacuum cleaner with the filter self-cleaning function as claimed in any one of claims 1 to 3, wherein the housing comprises a dust collecting box, a partition plate and an upper cover, the upper cover is connected with the dust collecting box, the partition plate is arranged between the dust collecting box and the upper cover, the dust collecting cavity is formed between the partition plate and the dust collecting box, the filter is fixedly connected with the bottom of the partition plate, the knocking mechanism (2) is arranged on the partition plate and positioned between the upper cover and the partition plate, the knocking mechanism (2) is configured to knock the partition plate, and the partition plate forms a resonance state with the filter after being knocked.

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