CN115104945B

CN115104945B - Cleaning device

Info

Publication number: CN115104945B
Application number: CN202210608658.5A
Authority: CN
Inventors: 范苏湘; 杨文博; 冯勇兵
Original assignee: Dreame Technology Suzhou Co ltd
Current assignee: Dreame Technology Suzhou Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2023-06-27
Anticipated expiration: 2040-12-28
Also published as: CN112603193A; CN112603193B; CN115104945A

Abstract

The present invention provides a cleaning device including: a main body portion; a dust cup movably mounted on the main body; the dust cup is provided with an outer cylinder and an inner cylinder, and a primary dust area is formed between the outer cylinder and the inner cylinder; the filter is arranged in the dust cup; the annular piece is slidably sleeved on the filter and comprises a dust scraping part, and the dust scraping part is in contact with the filter; the air inlet pipeline is arranged on the main body part, and the outer wall of the air inlet pipeline is clung to the inner cylinder; wherein the dust cup has a first position and a second position relative to the air inlet pipe; when the dust cup is in the first position, the dust cup is locked on the main body part; when the dust cup is in the second position, the dust cup is in a detachable position; when the dust cup moves from the first position to the second position, the dust scraping part scrapes the filter to scrape dust to the first-stage dust area, the inner cylinder is clung to the outer wall of the air inlet pipeline and moves, and the inner cylinder and the air inlet pipeline are provided with overlapping parts so as to prevent dust in the first-stage dust area from entering the air inlet pipeline.

Description

Cleaning device

The present application is a divisional application of the invention patent application with the application number 20201584327. X, which is entitled "ejection assembly for cleaning device and cleaning device" of the invention of 12/28/2020.

Technical Field

The invention relates to the technical field of cleaning devices, in particular to a cleaning device.

Background

Conventional cleaners utilize a motor to create a negative air pressure within a sealed housing that draws in dust-laden air under pressure differential. In a common hand-held cleaner, the dust collection cylinder or the dust cup needs to be opened manually, and dust is extremely easy to fly in the opening process. Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The invention aims to provide a cleaning device which solves the defects in the background art.

The invention aims at realizing the following technical scheme:

a cleaning device, comprising: a main body portion; a dust cup movably mounted on the main body; the dust cup is provided with an outer cylinder and an inner cylinder, and a primary dust area is formed between the outer cylinder and the inner cylinder; the filter is arranged in the dust cup; the annular piece is slidably sleeved on the filter and comprises a dust scraping part, and the dust scraping part is in contact with the filter; the air inlet pipeline is arranged on the main body part, and the outer wall of the air inlet pipeline is clung to the inner cylinder; wherein the dust cup has a first position and a second position relative to the air inlet pipe; when the dust cup is in the first position, the dust cup is locked on the main body part; when the dust cup is in the second position, the dust cup is in a detachable position; when the dust cup moves from the first position to the second position, the dust scraping part scrapes the filter to scrape dust to the first-stage dust area, the inner cylinder is clung to the outer wall of the air inlet pipeline and moves, and the inner cylinder and the air inlet pipeline are provided with overlapping parts so as to prevent dust in the first-stage dust area from entering the air inlet pipeline.

In an embodiment of the application, the ring piece still includes first ring support, linking bridge and second ring support, and linking bridge connects first ring support and second ring support, and first ring support cover is located on the air inlet duct to contradict the inner tube, and second ring support cover is located on the filter to contradict the urceolus.

In an embodiment of the present application, a first sealing member is disposed on the first annular support, a side surface of the first sealing member abuts against the inner cylinder, and a bottom surface of the first sealing member abuts against an outer wall of the air inlet pipe.

In an embodiment of the application, a third sealing element is arranged on the second annular support, the third sealing element is arranged adjacent to the ash scraping part, and the periphery of the third sealing element abuts against the inner wall of the outer cylinder and the outer wall of the filter.

In an embodiment of the present application, the ash scraping portion is in a slant plate shape, one end is mounted on the second annular support, and the other end abuts against the filter.

In an embodiment of the present application, the ring member further includes a collision portion, and the collision portion protrudes out of the second ring support and collides with an outer edge of the outer cylinder.

In an embodiment of the application, the ring member further comprises a guide post and an elastic member, wherein the guide post extends along the movement direction of the dust cup; the elastic piece is sleeved on the periphery of the guide post and is in a compressed state and used for providing acting force for the dust cup to move from the first position to the second position.

In one embodiment of the application, the annular member is cylindrical and extends along the movement direction of the dust cup, and comprises a guide post and an elastic member; the elastic piece is sleeved on the periphery of the guide post and is in a compressed state and used for providing acting force for the dust cup to move from the first position to the second position; wherein, the guide pillar is hidden in the annular piece inside.

In one embodiment of the present application, the length of the spring that can be ejected is smaller than the length of the inner cylinder.

In one embodiment of the present application, the dust cup further comprises a locking mechanism, and the dust cup is mounted to the main body portion through the locking mechanism.

In an embodiment of the application, the dust cup further comprises a limiting mechanism, wherein the limiting mechanism is arranged on the dust cup and used for limiting the distance of the dust cup moving relative to the main body part so as to prevent the dust cup from automatically falling off.

Compared with the prior art, the invention has the following beneficial effects: according to the cleaning device provided by the invention, the inner cylinder of the dust cup and the air inlet pipeline are provided with the non-overlapped part, so that the primary dust area in the dust cup is always in a sealed state, dust flying is reduced or avoided, and the user experience and dust collection effect are affected.

Drawings

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

FIG. 2 is a cross-sectional view of the cleaning device of the first embodiment of the present invention in a second position;

FIG. 3 is a disassembled view of the ejection assembly of the first embodiment of the present invention;

FIG. 4 is another exploded view of the ejection assembly of the first embodiment of the present invention;

FIG. 5 is a cross-sectional view of the ejection assembly of the first embodiment of the present invention when not ejected;

FIG. 6 is a cross-sectional view of the ejection assembly of the first embodiment of the present invention after ejection;

FIG. 7 is a schematic view of a cleaning apparatus according to a second embodiment of the present invention;

FIG. 8 is a cross-sectional view of a cleaning device according to a second embodiment of the present invention;

FIG. 9 is a cross-sectional view of a cleaning device according to a second embodiment of the present invention;

fig. 10 is an exploded view of an ejection assembly of a second embodiment of the present invention.

Reference numerals: 10. a main body portion; 11. an elastic member; 20. a dust cup; 200. a primary dust zone; 21. an outer cylinder; 22. an inner cylinder; 211. an overlapping portion; 23. an end wall; 30. a filter; 300. a secondary dust zone; 31. an air intake duct; 32. rotating the pipe; 41. a locking mechanism; 42. a limiting mechanism; 50. a ring member; 501. a first annular bracket; 502. a connecting bracket; 503. a second annular bracket; 504. a guide post; 511. a first seal; 512. a second seal; 52. a third seal; 53. a dust scraping part; 54. an abutting portion.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a device for practicing the invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below. It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Embodiment one:

referring to fig. 1-6, an ejection assembly for a cleaning device includes an elastic member 11, a ring member 50.

The elastic member 11 is mounted on the main body 10 of the cleaning device; the elastic member 11 is a compression spring, and the elastic member 11 is in a compressed state when the dust cup 20 is mounted on the main body 10. The ring 50 is provided with a guide post 504, and the elastic member 11 is extendable in the axial direction of the guide post 504 to eject the ring 50. The dirt cup 20 interferes with the ring 50 and after release of the resilient member 11 the ejector ring 50 moves and pushes the abutting dirt cup 20 to eject to the removable position. The ring 50 is provided with a dust scraping part 53, and the elastic part 11 ejects the dust cup 20 and the dust scraping part 53 can automatically scrape dust.

The cleaning device includes a main body 10, an air intake duct 31, a rotary duct 32, and a filter 30 that filters dust gas. The dirt cup 20, the air inlet duct 31, the rotary duct 32 and the filter 30 are on the same axis. The dust cup 20 is attached to the main body 10 by a lock mechanism 41, and a cyclone device, a motor, and the like are mounted in the main body 10.

The air intake duct 31 is on the same axis as the main body 10, and dust is introduced from the air intake duct 31. Integrally formed or fixedly connected with the air inlet pipe 31 is a rotary pipe 32, preferably, the inside of the rotary pipe 32 is a spiral pipe. The air intake duct 31 guides dust air to the rotation duct 32 for rotation.

The rotary duct 32 is provided with an inner wall and an outer wall, the inner wall is spiral, an external air flow enters the spiral duct formed by the inner wall, the outer periphery of the inner wall is integrally formed with the outer wall, and a region between the inner wall and the outer wall is a secondary dust region 300. The rotating duct formed by the inner wall is directly connected to the outer circumference of the filter 30. The secondary dust zone 300 is for storing fine dust separated by the cyclone separating apparatus, and an opening (not shown) of the secondary dust zone 300 is provided on an outer wall thereof.

The filter 30 is a ring-shaped filter structure, and is a filter 30 for filtering dust. The annular filter 30 is sleeved outside the rotary pipeline 32, the rotary pipeline 32 is provided with a first outlet, the filter 30 is provided with a second outlet, the second outlet is larger than the first outlet, the filter 30 is provided with a filtering hole, the first outlet is opposite to the second outlet, dust air passing through the rotary pipeline 32 enters the periphery of the filter 30 from the first outlet after rotating through the rotary pipeline 32, large-particle dust enters the primary dust area 200 of the dust cup 20 after being filtered through the filtering hole of the filter 30, and air carrying fine particles enters the cyclone separation device in the main body 10.

Preferably, the filter 30 is flush with the edge of the rotary duct 32 with a partition therebetween, and dust gas at the periphery of the filter 30 is filtered by the filter 30, and then enters the cyclone separation device in the main body 10 through the space between the filter 30 and the rotary duct 32, and the separated fine dust enters the secondary dust zone 300.

Referring to fig. 2 to 6, one end of the elastic member 11 is mounted on the body portion 10 and the other end abuts against the ring member 50. The dirt cup 20 is ejected from the first position to the second position by ejection of the resilient member 11. In this embodiment, referring to fig. 5, in a first position, fig. 6 is a second position, with the ring 50 abutting the inner barrel 22 of the dirt cup 20. In the first position of the dirt cup 20, the resilient member 11 is in a compressed state such that the ring 50 is always in a tendency to move forward. When the locking mechanism 41 is unlocked, the ring 50 moves along the air inlet duct 31 under the action of the elastic member 11, against the dirt cup 20 from the first position to the second position.

The ejector assembly of the cleaning device further comprises a locking mechanism 41, by means of which locking mechanism 41 the dirt cup 20 is locked in the first position, and when the dirt cup 20 is disengaged from the locking mechanism 41 the resilient member 11 is released and the dirt cup 20 is ejected by the resilient member 11 into the second position. The locking mechanism 41 is a hook structure or a magnetic attraction member. The first position is a position where the dust cup 20 is locked by the locking mechanism 41, and the second position is a position where the dust cup 20 can be detached from the air intake duct 31, i.e., a detachable position.

The ejector assembly further includes a dirt cup 20, the dirt cup 20 including an outer barrel 21 and an inner barrel 22, a primary dirt region 200 being defined between the outer barrel 21 and the inner barrel 22. The ring 50 abuts against the outer 21 or inner 22 barrel of the dirt cup 20. In this embodiment, the ring 50 abuts the inner barrel 22 of the dirt cup 20.

The dirt cup 20 also has an end wall 23. The end wall 23 smoothly connects the outer cylinder 21 and the inner cylinder 22 so that a primary dust zone 200 is formed between the outer cylinder 21 and the inner cylinder 22. In other embodiments, the end wall 23 may not be included, and the outer cylinder 21 may be bent to form the inner cylinder 22 with the primary dust region 200 therebetween.

The dust cup 20 is movable relative to the air inlet duct 31, the air inlet duct 31 being integral with the swivel duct 32, the swivel duct 32 being mounted on the main body 10. The dirt cup 20 is ejected from a first position to a second position relative to the air intake duct 31. The first position is a position where the dust cup 20 is locked to the main body 10 by the lock mechanism 41, and the cleaning device is in a usable state in the first position. The second position is the furthest distance the dirt cup 20 is ejected relative to the air inlet duct 31, and the second position is a position in which the dirt cup 20 is removable from the air inlet duct 31.

The inner cylinder 22 of the dirt cup 20 and the air inlet duct 31 have an overlap 211 during the movement of the first and second positions and the movement of the first position to the second position, so that dust in the dirt cup 20 is reduced or prevented from entering the air inlet duct 31 during the movement and removal of the dirt cup 20.

In the first position, the inner barrel 22 is wrapped around the air intake duct 31. During the movement of the dirt cup 20 from the first position to the second position, the inner cylinder 22 moves against the outer wall of the air inlet duct 31. In the second position, the inner barrel 22 and the air intake duct 31 have an overlap 211 such that in the second position dust in the primary dust zone is reduced or prevented from entering the air intake duct 31 from the primary dust zone 200. The overlapping portion 211 gradually shortens from the first position to the second position.

Referring to fig. 3, the ring 50 includes a first ring bracket 501, a connecting bracket 502, a second ring bracket 503, and a guide post 504, where the connecting bracket 502 connects the first ring bracket 501 and the second ring bracket 503, and the first ring bracket 501 abuts against the inner cylinder 22 of the dust cup 20. The first ring bracket 501 and the second ring bracket 503 may be integrally formed with the connecting bracket 502 and the guide post 504 for accommodating the elastic member 11.

The ring 50 is sleeved on the filter 30, in this embodiment, referring to fig. 2-6, the ash scraping part 53 is located on the second ring support 503, and is ejected together with the ring 50, the ash scraping part 53 collides with the filter 30, and the ash scraping part 53 scrapes the filter 30 by ejecting the ring 50, so that large particles adsorbed on the filter holes are scraped to the primary dust area 200 in the dust cup 20. Preferably, the ash scraping portion 53 is in a slant plate shape, one end of which is mounted on the second ring-shaped bracket 503, and the other end of which abuts against the filter 30.

The first annular bracket 501 is provided with a first sealing element 511, and the first sealing element 511 abuts against the inner cylinder 22 of the dust cup 20. The first annular bracket 501 also has a second seal 512 mounted thereon. One side surface of the first sealing member 511 abuts against the inner cylinder 22 of the dust cup 20, the bottom surface of the first sealing member 511 abuts against the outer wall of the air inlet pipeline 31, when the annular member 50 is not ejected, the second sealing member 512 is located between the primary dust area 200 and the secondary dust area 300, specifically located at the edge of the flush of the filter 30 and the rotary pipeline 32, the upper top and the lower top abut against the edge of the flush of the filter 30 and the rotary pipeline 32 respectively, and the opening of the secondary dust area 300, which is arranged on the rotary pipeline 32 and faces the filter 30, is isolated from the primary dust area 200.

The second ring-shaped bracket 503 is provided with a third sealing element 52, and the periphery of the third sealing element 52 abuts against the outer cylinder 21 of the dust cup 20. Specifically, during movement or ejection of the dirt cup 20 from the first position to the second position relative to the air intake duct 31, the first seal 511 abuts against the edge of the inner barrel 22 of the dirt cup 20 and the outer wall of the air intake duct 31, isolating the dirt cup 20 from outside air and the dirt cup 20 from the air intake duct 31; the second sealing member 512 is located between the primary dust region 200 and the secondary dust region 300, forming a blocking structure of the primary dust region 200 and the secondary dust region 300; the third seal 52 abuts against the inner wall of the outer cylinder 21 of the dirt cup 20 and the outer wall of the filter 30, isolating outside air from entering the dirt cup 20.

When the ring 50 is pushed or ejected, the ring 50 moves together with the first sealing member 511 to push the dust cup 20 to move along the air inlet pipe 31, and the first sealing member 511 always seals a gap between the outer wall of the inner cylinder 22 and the outer wall of the air inlet pipe 31 under the action of pushing force or ejection force.

In this embodiment, the annular member 50 abuts against the inner cylinder 22 of the dust cup 20, the ejectable length of the elastic member 11 is smaller than that of the inner cylinder 22, and after the elastic member 11 ejects the dust cup 20, the inner cylinder of the dust cup 20 overlaps with the air inlet pipe 31 of the cleaning device. That is, there is always an overlapping portion 211 and a first sealing member 511 is provided at the overlapping portion 211, so that the first sealing member 511 always seals the gap between the outer wall of the inner cylinder 22 and the outer wall of the air inlet duct 31 during, after and during the ejection of the dust cup 20, so as to prevent fine dust from flying from the primary dust area 200 into the air inlet duct 31, and the third sealing member 52 reduces or prevents fine dust from flying in the primary dust area 200. The first sealing element 511, the second sealing element 512 and the third sealing element 52 are soft sealing elements, and the minimum inner diameter of the first sealing element 511 is smaller than the maximum inner diameter of the air inlet pipeline 31, so that the first sealing element 511 can abut against the outer wall of the air inlet pipeline 31 to seal a gap between the dust cup 20 and the air inlet pipeline 31 in the moving process of the dust cup 20; the maximum outer diameter of the second seal 512 is slightly greater than the distance between the filter 30 and the rotating conduit 32, enabling the second seal 512 to be tightly sealed therebetween; the minimum inner diameter of the third seal 52 is smaller than the maximum inner diameter of the filter 30 such that the third seal 52 abuts the outer wall of the filter 30.

Preferably, the cleaning device further comprises a stop mechanism 42. The limiting mechanism 42 is arranged on the dust cup 20, a protruding part protrudes from the limiting mechanism 42 in a direction away from the dust cup 20, and a chute is arranged below the main body part 10. The limiting mechanism 42 can slide in the chute below the main body 10, when the main body 10 moves to the first position, the protruding part on the limiting mechanism 42 falls into the clamping groove in the chute, and when the dust cup 20 is separated from the locking of the locking mechanism 41, the protruding part of the limiting mechanism 42 is separated from the clamping groove and slides to the second position along the chute. When the dust cup 20 is at the second position, the end part of the chute limits the protruding part, so as to limit the automatic falling-off of the dust cup 20. That is, when the dust cup 20 is at the second position, the dust cup 20 is limited by the limiting mechanism 42 to prevent the dust cup 20 from automatically falling off.

When the cleaning device is used, the dust cup 20 is fastened on the main body part 10 through the locking mechanism 41, the dust cup 20 is in the tendency of being ejected under the compression action of the elastic piece 11, the air inlet pipeline 31 of the cleaning device guides the air carrying dust outside to the rotary pipeline 32 to rotate and then to enter the periphery of the filter 30, after being filtered by the filter 30, the large-particle dust is remained in the primary dust area 200, and the air carrying fine particles enters the cyclone separation device in the main body part 10.

When the cleaning device is cleaned, the locking of the locking mechanism 41 is released, the elastic piece 11 ejects the annular piece 50, and the first annular support 501 of the annular piece 50 abuts against the inner barrel 22, so that the dust cup 20 is ejected from the first position to the second position, and the dust scraping part on the second annular support 503 is clung to the filter 30 to scrape dust to the primary dust area 200. In the second position, the overlapping portion 211 still exists between the inner cylinder 22 and the air inlet pipe 31, and the first sealing member 511 seals the gap existing between the overlapping portion 211, so that dust in the primary dust area 200 is reduced or prevented from entering the air inlet pipe 31, and dust is effectively prevented from being raised. The limiting mechanism 42 is manually pressed, so that the limiting mechanism 42 is slightly deformed, the limit of the chute to the protruding part is relieved, the dust cup 20 is disassembled, garbage is dumped, and dust can not be raised in the whole process.

The ejection assembly provided by the invention pushes the dust cup 20 to move while ejecting the annular piece, so that the dust cup 20 is ejected for a certain distance, the dust cup 20 is convenient to detach, and automatic dust scraping can be realized while the dust cup 20 is ejected; the structural design of the annular piece 50 is ingenious, and the ejection and ash scraping of the dust cup 20 are realized under the condition that the diameter of the cleaning device is not increased; the sealing element is arranged on the annular element 50, so that the primary dust area in the dust cup is always in a sealing state in the ejection process of the dust cup, and dust flying is reduced or avoided, and the user experience and dust collection effect are affected.

Embodiment two:

referring to fig. 7-10, an ejection assembly for a cleaning device includes an elastic member 11, a ring member 50, and a dirt cup 20.

The elastic member 11 is mounted on the main body 10 of the cleaning device; the elastic member 11 is a compression spring, and the elastic member 11 is in a compressed state when the dust cup 20 is mounted on the main body 10. The inside of the ring 50 is provided with a guide post 504, and the elastic member 11 is extendable in the axial direction of the guide post 504 to eject the ring 50. The dirt cup 20 interferes with the ring 50, ejecting the ring 50 after the resilient member 11 is released moves and pushes the abutting dirt cup 20 to the detachable position. . The ring 50 is provided with a dust scraping part 53, and the elastic part 11 ejects the dust cup 20 and the dust scraping part 53 can automatically scrape dust.

The cleaning device includes a main body 10, an air inlet duct 31 for introducing external dust gas, and a filter 30 for filtering the dust gas. The dirt cup 20, the air inlet duct 31 and the filter 30 are on the same axis. The air intake duct 31 guides the external dust gas to the periphery of the filter 10, and the dust cup 20 is attached to the main body 10 by a lock mechanism 41, and a cyclone device, a motor, and the like are installed in the main body 10. A hollow interlayer is formed between the air inlet pipeline 31 and the filter 30 and is communicated with a channel for sucking air flow by the motor; the filter 30 is provided with a filter hole, and the sucked air is primarily filtered through the filter hole to filter the impurities of large particles.

Referring to fig. 7 to 10, the elastic member 11 has one end mounted on the body portion 10 and the other end seated in the guide post 504 in the ring 50 to abut against the ring 50. The dirt cup 20 is ejected from the first position to the second position by ejection of the resilient member 11. The ring 50 abuts the outer cylinder 21 of the dirt cup 20. In the first position of the dirt cup 20, the resilient member 11 is in a compressed state such that the ring 50 is always in a tendency to move forward. When the locking mechanism 41 is unlocked, the ring 50 moves along the air inlet duct 31 under the action of the elastic member 11, against the dirt cup 20 from the first position to the second position.

The dirt cup 20 includes an outer cylinder 21 and an inner cylinder 22, with a primary dirt region 200 formed between the outer cylinder 21 and the inner cylinder 22. The ring 50 abuts against the outer 21 or inner 22 barrel of the dirt cup 20. In this embodiment, the ring 50 abuts against the outer cylinder 21 of the dirt cup 20.

Specifically, referring to fig. 8-10, the ring 50 is cylindrical, and the guide post 504 is hidden inside the ring 50, so as not to increase the diameter of the whole cleaning device, which is suitable for a very small cleaning device. The cylindrical ring member 50 is sleeved on the periphery of the filter 30, the ash scraping portion 53 is located on the inner ring of the ring member 50, the ash scraping portion 53 is in contact with the filter 30, and the ash scraping portion 53 scrapes the filter 30 by sliding the cylindrical ring member 50, so that large particles adsorbed in the filter holes are scraped into the dust cup 20.

The ring 50 is provided with a collision part 54, the collision part 54 protrudes out of the ring 50, and the collision part 54 collides with the edge of the outer cylinder of the dust cup 20. Preferably, to save space, a cylindrical ring 50 is located inside the housing of the main body 10. After the dust cup 20 releases the locking mechanism, the elastic member in a compressed state ejects the annular member 50, and the annular member 50 moves along the air inlet pipe 31 under the action of the elastic member 11, and the abutting portion 54 abuts against the outer cylinder 21 of the dust cup 20 to move so as to facilitate the removal of the dust cup 20. In this process, the ash scraping part 53 provided on the ring member 50 scrapes the outer wall of the filter 30, thereby scraping large particles adsorbed to the filter hole into the dust cup 20.

In addition, the length of the inner cylinder 22 is not smaller than the distance that the elastic element 11 pushes the ash scraping part 53 to move, namely, the ejectable length of the elastic element 11 is smaller than the length of the inner cylinder 22, and after the elastic element 11 ejects the dust cup 20, an overlapping part exists between the inner cylinder of the dust cup 20 and the air inlet pipeline 31 of the cleaning device. After the elastic member 11 pushes the ash scraping portion 53 together with the dust cup 20, the inner cylinder 22 still fits with the air inlet pipe 31, so as to prevent the scraped dust from leaking out of the gap at the bottom of the dust cup 20.

When the cleaning device is used, the dust cup 20 is fastened on the main body part 10 through the locking mechanism 41, the dust cup 20 is in the tendency of being ejected under the compression action of the elastic piece 11, the air inlet pipeline 31 of the cleaning device guides the air carrying dust outside to the periphery of the filter 30, after the air is filtered by the filter 30, the large-particle dust enters the primary dust area 200, and the air carrying fine particles enters the cyclone separation device in the main body part 10.

When the cleaning device is cleaned, the locking of the locking mechanism 41 is released, the elastic piece 11 ejects the annular piece 50, the abutting part 54 of the annular piece 50 abuts against the outer cylinder 21, so that the dust cup 20 is ejected, and meanwhile, the ejected dust scraping part 53 is tightly attached to the filter 30 to scrape dust to the primary dust area 200.

The ejection assembly provided by the invention pushes the dust cup 20 to move while ejecting the annular piece, so that the dust cup 20 is ejected for a certain distance, the dust cup 20 is convenient to detach, and the dust scraping part 53 is tightly attached to the filter 30 to scrape dust to the first-stage dust area 200 while the dust cup 20 is ejected, so that automatic dust scraping is realized; and the structural design of the annular piece 50 is ingenious, and the ejection and ash scraping of the dust cup 20 are realized under the condition that the diameter of the cleaning device is not increased. And in the process of ejecting the dust cup 20 by the elastic piece 11, an overlapping part exists between the inner cylinder 22 of the dust cup 20 and the air inlet pipeline 31, and the primary dust area 200 in the dust cup is always in a sealed state, so that dust flying is reduced or avoided, and the user experience and dust collection effect are affected.

In addition, the invention also provides a cleaning device, which comprises the ejection assembly of the cleaning device in the first embodiment or the second embodiment.

The foregoing is merely one specific embodiment of the invention, and any modifications made in light of the above teachings are intended to fall within the scope of the invention.

Claims

1. A cleaning device, comprising:

a main body portion;

a dust cup movably mounted on the main body portion; the dust cup is provided with an outer cylinder and an inner cylinder, and a primary dust area is formed between the outer cylinder and the inner cylinder;

the filter is arranged in the dust cup;

the annular piece is sleeved on the filter in a sliding way and comprises a dust scraping part, and the dust scraping part is in contact with the filter; and

an air inlet pipe which is arranged on the main body part, and the outer wall of the air inlet pipe is tightly attached to the inner cylinder;

wherein the dust cup has a first position and a second position relative to the air inlet duct; when the dust cup is in the first position, the dust cup is locked on the main body part; when the dust cup is in the second position, the dust cup is in a detachable position;

when the dust cup moves from the first position to the second position, the dust scraping part scrapes the filter to scrape dust to the primary dust area, the inner cylinder is tightly attached to the outer wall of the air inlet pipeline and is provided with an overlapping part with the air inlet pipeline, so that dust in the primary dust area is prevented from entering the air inlet pipeline.

2. The cleaning device of claim 1, wherein the ring further comprises a first ring support, a connecting support and a second ring support, the connecting support connects the first ring support and the second ring support, the first ring support is sleeved on the air inlet pipe and abuts against the inner cylinder, and the second ring support is sleeved on the filter and abuts against the outer cylinder.

3. The cleaning device of claim 2, wherein a first seal is provided on the first annular bracket, a side of the first seal abuts the inner barrel, and a bottom surface of the first seal abuts an outer wall of the air intake duct.

4. The cleaning device according to claim 2, wherein a third seal member is provided on the second annular bracket, the third seal member being provided adjacent to the ash scraping portion, and an outer periphery of the third seal member abutting against an inner wall of the outer cylinder and an outer wall of the filter.

5. The cleaning apparatus of claim 4, wherein the ash scraping portion is in a slant plate shape, one end is mounted on the second ring-shaped support, and the other end abuts against the filter.

6. The cleaning device of claim 2, wherein the ring further comprises an interference portion protruding from the second ring support and interfering with an outer edge of the outer tub.

7. The cleaning apparatus of claim 2, wherein the ring further comprises a guide post and a resilient member, the guide post extending along a direction of movement of the dirt cup; the elastic piece is sleeved on the periphery of the guide post and is in a compressed state and used for providing acting force for the dust cup to move from the first position to the second position.

8. The cleaning apparatus of claim 1, wherein the ring member is cylindrical and extends in the direction of movement of the dirt cup, and comprises a guide post and an elastic member; the elastic piece is sleeved on the periphery of the guide post and is in a compressed state and used for providing acting force for the dust cup to move from the first position to the second position;

wherein, the guide pillar is hidden in the annular part is inside.

9. A cleaning device according to claim 7 or claim 8, wherein the length of the spring which can be ejected is less than the length of the inner barrel.

10. The cleaning device of claim 1, further comprising a locking mechanism by which the dirt cup is mounted to the main body portion.

11. The cleaning apparatus of claim 1, further comprising a limiting mechanism mounted to the dirt cup for limiting the distance the dirt cup moves relative to the main body portion to avoid automatic removal of the dirt cup.