CN216754345U - Filter is from cleaning device and dust catcher - Google Patents

Abstract

The utility model relates to a filter self-cleaning device and a dust collector. The filter self-cleaning apparatus comprises: a housing; the power source is connected with the shell; the cam is connected with the power source, and the power source is used for driving the cam to rotate; the knocking piece comprises a contact part and a knocking part, the contact part is in contact with the peripheral surface of the cam, and the knocking part is used for knocking a knocking object connected with the filter; the elastic piece is connected with the knocking piece; in a first state, the knocking piece is abutted by the cam and moves towards the direction far away from the knocking object; in the second state, the knocking piece moves towards the knocking object under the driving of the self gravity and the resilience force of the elastic piece. The self-cleaning device of the filter can effectively remove dust and sundries attached to the filter element, so that the filtering effect of the filter is better.

Description

Filter is from cleaning device and dust catcher

Technical Field

The utility model relates to the technical field of dust collectors, in particular to a filter self-cleaning device and a dust collector.

Background

Along with the continuous development of science and technology, the dust catcher begins to walk into our life, uses the dust catcher to clean and can alleviate the clean burden of manpower, improves clean efficiency, and clean effect is also better, and based on this, the dust catcher becomes the indispensable appurtenance when people clean gradually. Generally, when a vacuum cleaner is operated, a suction force is generated in the dust collecting box by generating a negative pressure, so that air mixed with dust and impurities is sucked, and when the air flows through the filter, the filter filters the dust and the impurities mixed in the air and collects the dust and the impurities in the dust collecting box. After long-term use, more dust and sundries can be accumulated on the filter element of the filter, and the filtering effect is influenced, so that a plurality of existing dust collectors are provided with a self-cleaning device for removing the dust, sundries and other substances attached to the filter element. However, the existing self-cleaning devices generally have poor cleaning effect, and cannot effectively remove dust and impurities attached to the filter element.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a self-cleaning device of a filter, which has a good self-cleaning effect, and can effectively remove dust and impurities attached to a filter element, so that the filtering effect of the filter is better.

A filter self-cleaning apparatus comprising:

a housing;

the power source is connected with the shell;

the cam is connected with the power source, and the power source is used for driving the cam to rotate;

the knocking piece comprises a contact part and a knocking part, the contact part is in contact with the peripheral surface of the cam, and the knocking part is used for knocking a knocking object connected with the filter;

the elastic piece is connected with the knocking piece;

in a first state, the knocking piece is abutted by the cam and moves towards a direction far away from the knocking object; in the second state, the knocking piece moves towards the knocking object under the driving of the self gravity and the resilience force of the elastic piece.

In one embodiment, the knocking direction of the knocking piece is the gravity direction of the knocking piece.

In one embodiment, the power source comprises a motor connected to the cam; or, the power supply includes the piece of taking out gas and rotates the piece, rotate the piece with the cam is connected, the piece of taking out gas is used for applying the negative pressure, with pneumatic drive rotate the piece and rotate.

In one embodiment, the knocking member comprises a baffle plate, the filter self-cleaning device further comprises a reduction gear set, the reduction gear set at least comprises a first gear, a second gear and a third gear, the first gear is coaxially connected with the second gear, the second gear is meshed with the third gear, the third gear is coaxially connected with the cam, the power output by the power source is transmitted through the first gear, the second gear and the third gear at least in sequence, the first gear is located between the third gear and the housing in the axial direction of the reduction gear set, and the cam is located between the third gear and the baffle plate.

In one embodiment, the filter self-cleaning device further comprises a sleeve with a hollow interior, a step surface is formed in the sleeve, a boss is arranged on the knocking piece, the knocking piece penetrates through the sleeve, the elastic piece is sleeved on the knocking piece, one end of the elastic piece abuts against the step surface, and the other end of the elastic piece abuts against the boss.

In one embodiment, one of the inner wall of the sleeve and the knocking piece is provided with a limiting groove extending along the moving direction of the knocking piece, and the other one of the inner wall of the sleeve and the knocking piece is provided with a convex limiting rib, and when the knocking piece moves, the limiting rib slides along the limiting groove.

In one embodiment, a wear-resistant sleeve is sleeved on the knocking part and detachably connected with the knocking part.

In one embodiment, the circumferential surface of the cam includes a first region and a second region, and a gap is formed between the first region and the second region along a radial direction of the cam.

In one embodiment, the filter self-cleaning apparatus further comprises a clutch assembly for driving the plexor member away from the cam.

In one embodiment, the clutch assembly comprises a clutch piece, and in a pause state, the clutch piece elastically abuts against the knocking piece so as to separate the knocking piece from the cam; under the working state, the clutch part is separated from the knocking part, and the knocking part is contacted with the cam.

According to the self-cleaning device for the filter, the contact part of the knocking piece is in contact with the peripheral surface of the cam, the cam can rotate under the driving of the power source, and when the cam rotates, the contact part can correspondingly move, so that the position of the knocking part is changed. In the first state, in the rotation process of the cam, the knocking piece is propped by the cam and moves towards the direction far away from the knocking object to prepare for knocking; in the second state, when the cam rotates, the self gravity of the knocking piece and the resilience force of the elastic piece jointly drive the knocking piece to move towards the knocking object, so that the knocking object is knocked. When the knocking object is knocked, the filter connected with the knocking object vibrates along with the knocking object, and dust and impurities attached to a filter element of the filter can be separated in the vibration process, so that the filter is cleaned. Because the piece motion of knocking is beaten in the common drive of knocking self gravity and elastic component resilience force for power when knocking is more sufficient, and the speed of knocking is bigger, and the dynamics of knocking in the object of knocking is also bigger, and the vibration range of knocking object and filter production is great, and dust and debris on attaching to filter element are changeed in breaking away from, and clean effect can be better.

The utility model also provides a dust collector which comprises the filter self-cleaning device, the dust collector comprises a partition plate, the partition plate and at least one part of a shell of the dust collector form a dust collecting box for collecting dust, the filter is arranged on one side of the partition plate and is positioned in the dust collecting box, the filter self-cleaning device is arranged on the other side of the partition plate, and the knocking object is the partition plate.

In one embodiment, the vacuum cleaner comprises a suction pipe and a suction connection head, the suction pipe being connected to the suction connection head in a plug-in manner, and the suction pipe being rotatable relative to the suction connection head.

In one embodiment, the dust collector comprises a limiting part, and when the suction pipe rotates to the storage position, the limiting part is matched with the suction pipe joint to limit the rotation of the suction pipe.

According to the dust collector, the filter self-cleaning device is applied, so that the filtering effect of the filter is better.

Drawings

FIG. 1 is a schematic view of a self-cleaning apparatus for a filter according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the housing of the self-cleaning apparatus of FIG. 1;

FIG. 3 is an exploded view of the self-cleaning apparatus of the filter of FIG. 1;

FIG. 4 is a schematic view of a part of the self-cleaning apparatus of a filter according to another embodiment of the present invention (the housing is omitted);

FIG. 5 is an exploded view of the self-cleaning apparatus of the filter of FIG. 4;

FIG. 6 is a schematic view of a partition and a self-cleaning device of a cleaner according to an embodiment of the present invention;

FIG. 7 is a schematic view of the partition, filter and filter self-cleaning device of the vacuum cleaner of FIG. 6;

FIG. 8 is a schematic view of the suction fitting of the vacuum cleaner of FIG. 6;

FIGURE 9 is a diagrammatic illustration of the construction of the suction tube of the vacuum cleaner of FIGURE 6;

FIG. 10 is a schematic view of the overall structure of the vacuum cleaner in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of the position of the plexor member in the direction of the force of the plexor member and in the direction of the force of the plexor member in an embodiment of the present invention.

Reference numerals:

the air conditioner comprises a shell 110, an upper shell 111, a limit plate 1111, a locking part 1113, a side plate 1112, a lower shell 112, a partition plate 120, an air outlet cover 130, a suction pipe joint 140, a first protrusion 141, a suction pipe 150 and a second protrusion 151;

filter 200, filter cartridge 210, filter cartridge top cap 220, filter cartridge bottom cap 230;

the fan comprises a first case 310, an air inlet 311, an air outlet 312, a first sleeve 320, a first limit groove 321, a step surface 322, a fan 330, a first fan blade 331, a second fan blade 332, a rotating shaft 333, a reduction gear set 340, a fourth gear 341, a first gear 342, a second gear 343, a third gear 344, a first cam 350, a first area 351, a second area 352, a notch 353, a first knocking piece 360, a first contact part 361, a first knocking part 362, a boss 363, a baffle 364, a first limit rib 365, a wear-resistant sleeve 366 and a first spring 370;

the second filter self-cleaning device 400, the second housing 410, the second sleeve 420, the motor 430, the timing belt 441, the driving pulley 442, the driven pulley 443, the worm 444, the turbine 445, the second cam 450, the second knocking member 460, the second contact portion 461, the second knocking portion 462, the second spring 470, the clutch member 481, the second limit rib 4811, the abutting portion 4812, the third spring 482, the clutch sleeve 483, and the second limit groove 4831.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "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 the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, 5 and 7, a self-cleaning device for a filter according to an embodiment of the present invention includes a housing, a power source, a cam, a knocking member, and an elastic member, wherein the power source is connected to the housing to mount the power source, the cam is connected to the power source, and the cam is driven by the power source to rotate. The piece of strikeing includes contact site and the portion of strikeing, and contact site and the global contact of cam because the radial dimension that the cam is global is different, and when the cam rotated, the position that can drive the contact site changed, and the position of whole piece of strikeing also changes correspondingly. The striking part in the striking member is used to strike the object of striking, which is a member connected to the filter 200. The elastic piece is connected with the knocking piece, and in the first state, the knocking piece is propped against the cam and moves towards the direction far away from the knocking object to prepare for knocking. Under the second state, the piece of strikeing is driven down towards the object motion of strikeing jointly at self gravity and elastic component resilience force to strike the object, can produce the vibration when strikeing the object and strikeing, will vibrate along with it with the filter 200 of strikeing the object and being connected, the vibration in-process, the dust and debris that attach to on the filter core 210 of filter 200 will break away from, thereby realize the cleanness to filter 200. Because the piece motion is strikeed in order to strike to the common drive of a knocking part self gravity and elastic component resilience force, can make the power when strikeing more sufficient, and the speed of strikeing is bigger, and the dynamics of strikeing in the object of strikeing is also bigger, and the vibration range of strikeing object and filter 200 production is great, and dust and debris on the filter core 210 of attached to filter 200 change in breaking away from filter core 210, and clean effect can be better.

As described above, the knocking object is a component connected to the filter 200. Note that the tapping object may be directly or indirectly connected to the filter 200. In addition, a direction in which the plexor member moves toward the plexor object is defined as a direction of tapping.

Referring to FIG. 10, in some embodiments, the resilience of the elastic member, along with a partial component of the weight of the plexor member, drives the plexor member toward the plexor object to perform the plexor. Specifically, the knocking direction of the knocking piece and the gravity direction of the knocking piece form an acute angle, and at the moment, the resilience force of the elastic piece and the component force of the gravity of the knocking piece in the knocking direction drive the knocking piece to move towards a knocking object so as to knock. It can be understood that the smaller the included angle between the knocking direction of the knocking piece and the gravity direction of the knocking piece is, namely the closer the knocking direction is to the gravity direction, the larger the component force of the gravity in the knocking direction is, and the more sufficient the knocking power can be provided. Preferably, in some embodiments, the knocking direction of the knocking piece is the gravity direction of the knocking piece, that is, an included angle between the knocking direction of the knocking piece and the gravity direction of the knocking piece is 0, the knocking piece performs knocking along the gravity direction of the knocking piece, the knocking piece moves upwards in the first state, and the knocking piece moves downwards in the second state. So, the resilience force of elastic component to and strike the whole gravity of piece and drive together and strike the piece and strike the object motion towards knocking the object and strike, it is bigger to strike power, strikes speed faster, strikes the dynamics bigger, strikes the vibration range that object and filter 200 produced bigger, and clean effect is better.

In some embodiments, the power source includes an air extractor and a rotatable member, the rotatable member being coupled to the cam, the air extractor being configured to apply a negative pressure to drive the rotatable member in a pneumatically driven manner. When the rotating piece rotates, the cam rotates synchronously with the rotating piece, so that the knocking piece contacted with the cam is driven to move.

Specifically, referring to fig. 1 to 3, in some embodiments, the first housing 310 is provided with an air inlet 311 and an air outlet 312, the rotating component is a fan 330, the fan 330 is installed in the first housing 310, and the first cam 350 is connected to the fan 330. The air-extracting component can be a vacuum pump or a suction power device, for example, when the air-extracting component is a vacuum pump, the vacuum pump is connected to the air outlet 312, when the vacuum pump operates, air will enter from the air inlet 311, flow through the fan 330 and be exhausted from the air outlet 312, and when the air flow passes through the fan 330, the air flow will drive the fan 330 to rotate. Specifically, after entering from the air inlet 311, the airflow flows to the air outlet 312 along a gap between the outer peripheral surface of the fan 330 and the inner side wall of the first housing 310, and in this process, the airflow stirs the fan 330 to rotate. The central position of the fan 330 is fixedly connected with a rotating shaft 333, and when the fan 330 rotates, power is output from the rotating shaft 333 to drive the first cam 350 to rotate. The air inlet 311 and the air outlet 312 may be notches disposed on the first housing 310, or may be pipes connected to the first housing 310. For example, in the embodiment shown in the drawings, the air inlet 311 is a pipe connected to the first housing 310, and the air outlet 312 is a notch formed on a side wall of the first housing 310, and preferably, the pipe is a hose to improve flexibility of an installation position thereof. Preferably, the fan 330 includes a first blade 331 and a second blade 332, both of which are squirrel cage fans, which are overlapped and fixedly connected along a rotating shaft 333. The closed type fan is formed by combining the double-squirrel-cage fans, so that the wind collecting capacity is stronger, and the wind energy can be converted more efficiently.

Referring to fig. 1 to 3, in the embodiment shown in the figures, the first contact portion 361 and the first striking portion 362 are respectively located at two ends of the first striking member 360. The direction from first contact 361 to first striker 362 is the direction of the striking of first striker 360. Of course, in other embodiments, the first contact portion 361 may not be disposed at the end of the first striker 360, for example, the first contact portion 361 may extend outward from the peripheral surface of the first striker 360, and the first contact portion 361 is located at the center of the first striker 360 in the axial direction thereof; alternatively, first contact portion 361 is located at a position along one-third of the axial length of first striker 360.

In some embodiments, the filter self-cleaning apparatus further comprises a drive assembly, and the power source drives the cam to rotate through the drive assembly. Specifically, when the fan 330 rotates, the power is output from the rotating shaft 333 to the transmission component, and then the power is output to the first cam 350, and the transmission component drives the first cam 350 to rotate. The transmission assembly can adopt transmission structures such as gear transmission, chain transmission, belt transmission and the like.

Further, in some embodiments, the transmission assembly includes a reduction gear set 340, which is decelerated by the reduction gear set 340 to increase output torque and output power. The first knocking member 360 includes a blocking plate 364, the reduction gear set 340 includes at least a first gear 342, a second gear 343, and a third gear 344, the first gear 342 is coaxially connected to the second gear 343, the second gear 343 is engaged with the third gear 344, the third gear 344 is coaxially connected to the first cam 350, the power output from the power source is sequentially transmitted through at least the first gear 342, the second gear 343, and the third gear 344, and in the axial direction of the reduction gear set 340, the first gear 342 is located between the third gear 344 and the first housing 310, and the first cam 350 is located between the third gear 344 and the blocking plate 364. Since the first cam 350 is located between the third gear 344 and the baffle 364, the baffle 364 can limit the first cam 350 and the third gear 344 in the axial direction of the reduction gear set 340, so as to prevent the first cam 350 and the third gear 344 from coming out in the axial direction. Meanwhile, since the first gear 342 is located between the third gear 344 and the first housing 310, the third gear 344 can limit the first gear 342 and the second gear 343 along the axial direction of the reduction gear set 340, so as to prevent the first gear 342 and the second gear 343 from coming off along the axial direction thereof.

Specifically, the reduction gear set 340 further includes a fourth gear 341, and the fourth gear 341 is coaxially connected to the rotating shaft 333 of the fan 330 and can rotate synchronously with the rotating shaft 333. The fourth gear 341 is engaged with the first gear 342, the first gear 342 is coaxially connected with the second gear 343, the second gear 343 is engaged with the third gear 344, the third gear 344 is coaxially connected with the first cam 350, and power output when the fan 330 rotates is sequentially transmitted to the first cam 350 through the fourth gear 341, the first gear 342, the second gear 343, and the third gear 344. The first gear 342 has a larger diameter than the fourth gear 341 to achieve one-stage reduction, and the third gear 344 has a larger diameter than the second gear 343 to achieve two-stage reduction. Of course, the number of gears may be increased or decreased, for example, gears may be added to achieve three-stage reduction.

In some embodiments, when the gears are increased or decreased, the positions of the gears can be arranged in the manner described above to limit the positions. For example, two gears may be added between the third gear 344 and the first cam 350, and a fifth gear and a sixth gear are added, the fifth gear is coaxially connected with the third gear 344, the sixth gear is meshed with the fifth gear, and the first cam 350 is coaxially connected with the sixth gear. The sixth gear may be mounted at an end of the third gear 344, such that the third gear 344 is located between the sixth gear and the first gear 342, so as to limit the third gear 344 and the fifth gear along their own axial directions.

In some embodiments, the elastic member is a first spring 370, the filter self-cleaning device further includes a first sleeve 320 having a hollow interior, a step surface 322 is formed inside the first sleeve 320, a boss 363 is disposed on the first knocking member 360, the first knocking member 360 penetrates through the first sleeve 320, the first spring 370 is sleeved on the first knocking member 360, and one end of the first spring 370 abuts against the step surface 322 and the other end abuts against the boss 363. Specifically, the first sleeve 320 is connected to the first housing 310, and the two may be integrally formed as a single body. In the first state, the first striking member 360 is ejected by the first cam 350 in a direction away from the striking object, at this time, the first spring 370 is compressed, and when the first cam 350 rotates to a predetermined position and enters the second state, the resilient force of the first spring 370 and the gravity of the first striking member 360 drive the first striking member 360 to move in a reverse direction, and striking is performed. In other embodiments, the first spring 370 may not be disposed on the first knocking member 360, for example, one end of the first spring 370 is fixedly connected to the first knocking member 360, and the other end is fixed to a fixed component such as the first housing 310, and in the first state, when the first knocking member 360 is ejected by the first cam 350 in a direction away from the knocking object, the first spring 370 may be stretched.

In some embodiments, the inner wall of the first sleeve 320 is provided with a first limiting groove 321 extending along the moving direction of the first knocking member 360, the first knocking member 360 is provided with a protruding first limiting rib 365, and when the first knocking member 360 moves, the first limiting rib 365 slides along the first limiting groove 321. Thus, the first limiting rib 365 can be limited so as to prevent the first knocking piece 360 from rotating circumferentially. Of course, the positions of the first limiting groove 321 and the first limiting rib 365 can be interchanged, that is, the first limiting rib 365 is disposed on the inner wall of the first sleeve 320, and the first limiting groove 321 is disposed on the first knocking member 360.

In some embodiments, a wear sleeve 366 is sleeved on the first striking portion 362, and the wear sleeve 366 is detachably connected with the first striking portion 362. Specifically, wear-resisting cover 366 can select for use the metal material that density is great, and not only wearability is better, can also increase the dynamics of beating because of the great weight of self, further strengthens clean effect. The aforementioned boss 363 is located on the wear sleeve 366 near the end of the first spring 370 that projects radially outward on itself to form the boss 363. Of course, boss 363 may also be formed to protrude outwardly from the body portion of first plexor member 360. Wear sleeve 366 and first striker portion 362 may be secured by a snap fit connection or threaded fasteners such as screws. When wear sleeve 366 becomes worn more, it can be removed for replacement.

As previously mentioned, the rotation of the first cam 350 causes the first striker 360 in contact therewith to move, as is well known to those skilled in the art, due to the different radial dimensions of the peripheral surface of the first cam 350. Preferably, in some embodiments, the circumferential surface of the first cam 350 includes a first region 351 and a second region 352, a gap 353 is formed between the first region 351 and the second region 352 along the radial direction of the first cam 350, a radial dimension of the gap 353 is abrupt, the radial dimension of the first region 351 is smaller, and the radial dimension of the second region 352 is larger. Compared with the cam with the smooth transition of the outer peripheral surface, obviously, the cam with the abrupt change of the radial dimension is more favorable for increasing the knocking force. In the first state, the area of the first cam 350 in contact with the first contact portion 361 gradually transitions from the first area 351 to the second area 352, and in the process, as the radial dimension of the area of the first cam 350 in contact with the first contact portion 361 gradually increases, the first contact portion 361 is gradually ejected away from the knocking object in preparation for the knocking. In the second state, since the gap 353 is formed between the first region 351 and the second region 352, the first region 351 and the second region 352 have a larger size difference in the radial direction, the region in contact with the first contact portion 361 is suddenly changed from the second region 352 to the first region 351, the sudden change enables the first knocking member 360 to suddenly move towards the knocking object under the driving of the self gravity and the resilience force of the first spring 370, the movement speed is high, and a violent knocking can be formed.

Referring to fig. 4-5, in other embodiments, the power source may be a motor drive in addition to the pneumatic drive of the previous embodiments. Specifically, the power source includes a motor 430, the motor 430 is connected to the second cam 450, and the second cam 450 is driven to rotate by the power output from the motor 430, so as to drive the second knocking member 460 to move.

Further, in some embodiments, the motor 430 drives the cam to rotate via a transmission assembly. Specifically, the transmission assembly includes a synchronous belt 441, a driving pulley 442, a driven pulley 443, a worm 444 and a worm 445, an output shaft of the motor 430 is connected to the driving pulley 442, the driving pulley 442 can rotate synchronously with the motor 430, the synchronous belt 441 is sleeved on the driving pulley 442 and the driven pulley 443, the driven pulley 443 can rotate synchronously with the driving pulley 442, and the synchronous belt structure is a deceleration synchronous belt. The driven pulley 443 is coaxially connected with the worm 444, the worm 444 is meshed with the worm wheel 445, the second cam 450 is coaxially connected with the worm wheel 445, and when the worm 444 rotates synchronously with the driven pulley 443, the worm wheel 445 is driven to rotate, and then the second cam 450 is driven to rotate, so that power output is achieved. Of course, in this embodiment, the transmission assembly may also adopt the structure in the embodiment shown in fig. 1 to 3, and similarly, the transmission assembly in each embodiment shown in fig. 1 to 3 may also adopt the structure in this embodiment.

The second cam 450 has the same structure as the first cam 350, the second sleeve 420 has a structure and an arrangement similar to those of the first sleeve 320, the second plexor member 460 has a structure and an arrangement similar to those of the first plexor member 360, and the connection structure and the movement relationship between the second plexor member 460 and the second cam 450 are similar to those between the first plexor member 360 and the first cam 350. In the present embodiment, the elastic member is the second spring 470, and the second spring 470 has a structure, an arrangement position, and the like similar to those of the first spring 370. These same or similar parts will not be described in detail herein.

In this embodiment, the motor 430 may be the motor of the whole cleaner, i.e. the motor not only realizes self-cleaning of the filter, but also drives the suction part of the cleaner to work, so as to realize suction cleaning. In some embodiments, a small motor, separate from the motor of the cleaner body, may be provided to drive the self-cleaning of the filter, so that the self-cleaning of the filter can be started or stopped simply by turning on or off the separate switch associated with the small motor.

In other embodiments, a clutch assembly may be provided to disengage the second plexor member 460 from the second cam 450, thereby stopping the self-cleaning of the filter. Specifically, if the second knocking member 460 is separated from the second cam 450, the second knocking member 460 does not move any more when the second cam 450 rotates, and knocking cannot be performed.

Specifically, in some embodiments, the clutch assembly includes a clutch 481, and in a pause state, the clutch 481 elastically abuts against the second striking member 460 to separate the second striking member 460 from the second cam 450, and at this time, even if the second cam 450 rotates, the second striking member 460 does not move and strike a striking object; in the operating state, the clutch 481 is disengaged from the second striker member 460, and the second striker member 460 is lowered by gravity into contact with the second cam 450, at which time the second striker member 460 can be properly slammed for cleaning in the manner described above.

Specifically, in some embodiments, clutch 481 is disposed parallel to second plexor member 460. The clutch 481 includes a supporting portion 4812, and the supporting portion 4812 can be located at an end of the clutch 481, but other positions are also possible. A clutch sleeve 483 is attached to the second housing 410, the clutch sleeve 483 has a hollow interior, the clutch member 481 penetrates the clutch sleeve 483, and the abutting portion 4812 contacts the second knocking member 460. The clutch 481 is sleeved with a third spring 482, and the third spring 482 is in a compressed state. Similar to the first sleeve 320, a step surface is also disposed inside the clutch sleeve 483, one end of the third spring 482 elastically abuts against the step surface disposed inside the clutch sleeve 483, and the other end elastically abuts against the abutting portion 4812, so that the abutting portion 4812 elastically abuts against the second knocking member 460. Specifically, the abutting portion 4812 elastically abuts against the second contact portion 461, but may also abut against other positions on the second knocking element 460. Preferably, the resilience of the third spring 482 is greater than the sum of the resilience of the second spring 470 and the weight of the second striking member 460, so that the resilience of the third spring 482 will drive the abutting portion 4812 to eject the second striking member 460 away from the striking object, and the second striking member 460 will be separated from the second cam 450, thereby placing the self-cleaning device in a pause state. When the clutch 481 is pressed in the knocking direction, the third spring 482 is further compressed, so that the abutting portion 4812 is separated from the second contact portion 461, and the second contact portion 461 is again brought into contact with the second cam 450 by the resilient force of the second spring 470, thereby putting the filter self-cleaning apparatus into operation. Preferably, a locker such as a latch may be provided, and when the clutch 481 is pressed to a predetermined position, the clutch 481 may be locked to a current position by the locker, so that the clutch 481 does not need to be pressed all the time. Any locking structure suitable for the prior art may be adopted, and details are not described here. It should be noted that clutch 481 should be depressed so as not to impede the tapping action of second plexor member 460, i.e., so as not to impact clutch 481 during tapping of second plexor member 460 toward a tapped object.

In other embodiments, third spring 482 may not be provided, clutch 481 may itself be resilient, clutch 481 may be in a compressed state, and clutch 481 may itself be resilient more than the sum of the resiliency of first spring 370 and the weight of first plexor 360. The resilient force of the clutch 481 drives the abutting portion 4812 to eject the second knocking member 460 away from the knocking object, so that the second knocking member 460 is separated from the second cam 450, and the filter self-cleaning apparatus is in a pause state. When the clutch 481 is pressed in the knocking direction, the clutch 481 is further compressed, and the abutting portion 4812 is separated from the second contact portion 461, and the second contact portion 461 is again brought into contact with the second cam 450 by the resilient force of the second spring 470, so that the filter self-cleaning device is in an operating state.

In some embodiments, similar to the arrangement of the first limiting rib 365 and the first limiting groove 321, the clutch sleeve 483 is also provided with a second limiting groove 4831 extending along its axial direction, and the circumferential surface of the clutch 481 is provided with a second limiting rib 4811, so that when the clutch 481 moves, the second limiting rib 4811 slides along the second limiting groove 4831. Thus, the second limiting rib 4811 can be limited to prevent the clutch 481 from rotating in the circumferential direction. Of course, the positions of the first limiting rib 365 and the first limiting groove 321 can be interchanged.

It should be noted that the clutch assembly described above can also be applied to the embodiments shown in fig. 1 to 3.

Referring to fig. 6 and 7, in some embodiments, the vacuum cleaner includes the filter self-cleaning apparatus of any one of the above embodiments, which has the advantages of any one of the above embodiments. Fig. 6 and 7 show a second filter self-cleaning device 400 of the embodiment of fig. 4 and 5, which may be replaced by the filter self-cleaning device of each of the embodiments shown in fig. 1 to 3.

In some embodiments, the vacuum cleaner comprises a partition 120, the partition 120 and at least a portion of the housing 110 of the vacuum cleaner form a dust collection box for collecting dust, the filter 200 is mounted on one side of the partition 120 and the filter 200 is located in the dust collection box, the filter self-cleaning device is mounted on the other side of the partition 120, and the object of the impact is the partition 120. Specifically, the partition 120 and the housing 110 located therebelow form a dust box, i.e., the dust box is located below the partition 120, the filter 200 is installed below the partition 120, and the second filter self-cleaning device 400 is installed above the partition 120. When the partition 120 is knocked, the filter 200 mounted on the partition 120 is vibrated together with the partition 120, thereby achieving cleaning of the filter 200. When the knocking object is the partition plate 120, the area of the partition plate 120 is large, and the knocking object can be used in any area, so that the flexibility of the installation position of the self-cleaning device of the filter is high, the self-cleaning device can be installed in a cavity in the dust collector, the internal space of the dust collector is better utilized, and the structure of the dust collector is more compact and the size of the dust collector is smaller to a certain extent. Specifically, the filter 200 includes a cartridge top cap 220 and a cartridge bottom cap 230, the cartridge 210 is mounted between the cartridge top cap 220 and the cartridge bottom cap 230, and the cartridge top cap 220 is mounted to the partition 120. The partition plate 120 is fixedly connected with the housing 110, the air outlet cover 130 is connected to the partition plate 120, the air outlet cover 130 is communicated with an inner cavity of the filter element 210, the partition plate 120 is further connected with a suction pipe 150, and the suction pipe 150 is communicated with the dust collection box. When the vacuum cleaner is in operation, the external air flow carrying the dust and the impurities enters the dust collecting box from the suction pipe 150, when reaching the filter element 210, the filter element 210 filters the dust and the impurities to make the dust and the impurities fall into the dust collecting box, and the filtered air flow passes through the filter element 210, reaches the inner cavity from the outside of the filter element 210 and is discharged from the air outlet cover 130. The housing of the filter self-cleaning apparatus is fixedly connected to the partition 120, for example, in each of the embodiments shown in fig. 4 and 5, the second housing 410 is fixed to the air outlet cover 130 fixedly connected to the partition 120, and the motor 430 is also mounted to the air outlet cover 130.

In other embodiments, the striking target can be other components, such as the cartridge top cap 220, and the striking position can be the top surface of the cartridge top cap 220, as well as other components that are directly or indirectly coupled to the filter 200.

Referring to fig. 8 to 10, preferably, in some embodiments, a suction pipe connector 140 is connected to the partition 120, a suction pipe 150 is inserted into the suction pipe connector 140, and the suction pipe 150 can rotate relative to the suction pipe connector 140. The suction duct 150 can be rotated as required to better align it with the area to be cleaned when the cleaner is in operation.

Further, in some embodiments, the suction pipe 150 further includes a limiting structure, and when the suction pipe 150 rotates to the storage position, the limiting structure can limit the suction pipe 150. When the dust collector does not work, the suction pipe 150 can be rotated to the containing position and limited, so that the dust collector cannot rotate randomly and is easier to contain.

In some embodiments, the limiting structure may be a hook disposed on the housing 110, and the suction pipe 150 is provided with a hanging portion, and when the suction pipe 150 rotates to the storage position, the hanging portion may hang on the hook to limit the suction pipe 150. Alternatively, in some embodiments, the limiting structure may be a clamping member disposed on the housing 110, and when the suction tube 150 rotates to the accommodating position, the suction tube 150 may be clamped with the clamping member to limit the suction tube 150.

Alternatively, in some embodiments, the vacuum cleaner is provided with a position-limiting part, and when the suction pipe 150 rotates to the storage position, the position-limiting part cooperates with the suction pipe connector 140 to limit the rotation of the suction pipe 150, that is, the position-limiting part and the suction pipe connector 140 together form a position-limiting structure. Specifically, the position-limiting part may be a part of the housing 110, or may be another part on the cleaner. For example, the limiting portion may be a limiting plate 1111 on the housing 110, and when the suction pipe 150 rotates clockwise to reach the storage position shown in fig. 10 under the angle shown in fig. 10, the limiting plate 1111 blocks the left side of the suction pipe 150, so that the suction pipe 150 cannot rotate clockwise, and the suction connector 140 limits the right side of the suction pipe 150, so that the suction pipe 150 cannot rotate rightwards in the opposite direction to leave the storage position. Specifically, the suction pipe 150 is inserted into the suction pipe connector 140, the inner side wall of the suction pipe connector 140 is provided with a first protrusion 141, the outer side wall of the suction pipe 150 is provided with a second protrusion 151, when the suction pipe 150 is gradually rotated toward the storage position, the second protrusion 151 gradually approaches the first protrusion 141, and when the suction pipe is rotated to a position close to the storage position, the force for rotating the suction pipe 150 is increased, so that the second protrusion 151 and the first protrusion 141 are pressed against each other to be deformed and still keep rotating relatively until the second protrusion 151 passes over the first protrusion 141, that is, the second protrusion reaches the storage position. At this time, the left side of the suction pipe 150 is blocked and limited by the limiting plate 1111, and the first protrusion 141 blocks the second protrusion 151 to limit the right side of the suction pipe 150, thereby preventing the suction pipe 150 from freely rotating. When the vacuum cleaner is working, the suction pipe 150 is rotated reversely with a large force, so that the suction pipe 150 can rotate freely after the second protrusion 151 passes over the first protrusion 141 reversely. In the embodiment shown in the drawings, the limiting plate 1111 and the adjacent side plate 1112 block and limit the suction pipe 150, so that the suction pipe 150 can only rotate freely within a range of 90 °, and in fact, the rotation range is limited by the included angle between the limiting plate 1111 and the adjacent side plate 1112, and if the included angle between the limiting plate 1111 and the adjacent side plate 1112 is larger, the suction pipe can rotate within a larger range. For example, the angle between the limiting plate 1111 and the adjacent side plate 1112 is 180 degrees, i.e. the outer surface of the limiting plate 1111 and the outer surface of the side plate 1112 are coplanar, so that the suction pipe 150 can rotate freely within 180 degrees.

As shown in fig. 10, the housing 110 includes an upper shell 111 and a lower shell 112, a partition 120 is disposed therebetween, and both the upper shell 111 and the lower shell 112 are fixedly connected to the partition 120. The filter is located inside the lower case 112, the filter self-cleaning device is installed inside the upper case 111, and the suction pipe connector 140 is also installed inside the upper case 111. The suction pipe 150 extends from the suction pipe joint 140 to above the upper shell 111, the top surface of the upper shell 111 is provided with a concave area matched with the shape of the suction pipe 150, the suction pipe 150 can be accommodated in the concave area, and the limit plate 1111 and the adjacent side plate 1112 belong to a part of the upper shell 111. Preferably, the upper shell 111 is further provided with a locking portion 1113, and after the suction pipe 150 is received in the recessed area, the end portion of the suction pipe 150 can be locked into the locking portion 1113, so as to limit the free end of the suction pipe 150. The locking part 1113 is U-shaped, the end of the suction tube 150 can be inserted into the U-shaped opening of the locking part 1113 and clasped by the locking part 1113, and when the suction tube 150 needs to be taken down, the suction tube 150 only needs to be pulled by a larger force to be separated from the clasping of the suction tube 150.

Of course, in some embodiments, no limiting structure may be provided to allow for 360 ° unimpeded rotation of the suction tube 150. For example, the upper housing 111 may be lowered to a height below the suction duct 150 such that the suction duct 150 rotates without being blocked by any of the components in the upper housing 111.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. A filter self-cleaning apparatus, comprising:

a housing;

the power source is connected with the shell;

the cam is connected with the power source, and the power source is used for driving the cam to rotate;

a striking piece including a contact portion contacting a circumferential surface of the cam and a striking portion for striking a striking object connected to the filter (200);

the elastic piece is connected with the knocking piece;

in a first state, the knocking piece is abutted by the cam and moves towards a direction far away from the knocking object; in the second state, the knocking piece moves towards the knocking object under the driving of the self gravity and the resilience force of the elastic piece.

2. The filter self-cleaning apparatus of claim 1, wherein the direction of the stroke of the plexor member is the direction of gravity of the plexor member.

3. The self-cleaning apparatus of claim 1, wherein the power source comprises a motor (430), the motor (430) being connected to the cam; or, the power supply includes the piece of taking out gas and rotates the piece, rotate the piece with the cam is connected, the piece of taking out gas is used for applying the negative pressure, with pneumatic drive rotate the piece and rotate.

4. Self-cleaning device according to claim 1, wherein said rapper comprises a baffle (364), the filter self-cleaning device further comprises a reduction gear set (340), the reduction gear set (340) at least comprises a first gear (342), a second gear (343) and a third gear (344), the first gear (342) is coaxially connected with the second gear (343), the second gear (343) is meshed with the third gear (344), the third gear (344) is coaxially connected with the cam, the power output by the power source is transmitted with the third gear (344) at least through the first gear (342), the second gear (343) in sequence, the first gear (342) is located between the third gear (344) and the housing in an axial direction of the reduction gear set (340), the cam is located between the third gear (344) and the baffle (364).

5. The self-cleaning device of claim 1, further comprising a hollow sleeve, wherein a step surface (322) is formed inside the sleeve, a boss (363) is disposed on the striking member, the striking member passes through the sleeve, the elastic member is sleeved on the striking member, and one end of the elastic member abuts against the step surface (322) and the other end abuts against the boss (363).

6. The self-cleaning apparatus as claimed in claim 5, wherein one of the inner wall of the sleeve and the striking member is provided with a limiting groove extending in a moving direction of the striking member, and the other is provided with a protruding limiting rib, and the limiting rib slides along the limiting groove when the striking member moves.

7. Self-cleaning device according to claim 1, wherein a wear sleeve (366) is sleeved on the knocking portion, and the wear sleeve (366) is detachably connected with the knocking portion.

8. Self-cleaning device for filters according to claim 1, characterised in that the circumferential surface of the cam comprises a first zone (351) and a second zone (352), a gap (353) being formed between the first zone (351) and the second zone (352) in the radial direction of the cam.

9. The filter self-cleaning apparatus of claim 1, further comprising a clutch assembly for driving the plexor member away from the cam.

10. The filter self-cleaning apparatus of claim 9, wherein the clutch assembly includes a clutch member (481), and in a pause state, the clutch member (481) elastically abuts against the plexor member to separate the plexor member from the cam; in the operating state, the clutch member (481) is disengaged from the striker, which is in contact with the cam.

11. Vacuum cleaner, comprising a filter self-cleaning device according to any of claims 1 to 10, the vacuum cleaner comprising a partition (120), the partition (120) forming with at least a part of the housing of the vacuum cleaner a dust collecting box for collecting dust, the filter (200) being mounted on one side of the partition (120) and the filter (200) being located within the dust collecting box, the filter self-cleaning device being mounted on the other side of the partition (120), the tapping object being the partition (120).

12. Vacuum cleaner according to claim 11, characterized in that it comprises a suction tube (150) and a suction pipe connection (140), said suction tube (150) being plugged into said suction pipe connection (140), said suction tube (150) being rotatable relative to said suction pipe connection (140).

13. The vacuum cleaner of claim 12, comprising a limit stop that cooperates with the suction tube adapter (140) to limit rotation of the suction tube (150) when the suction tube (150) is rotated to the stowed position.

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