CN106859499B

CN106859499B - Dust collector

Info

Publication number: CN106859499B
Application number: CN201710233592.5A
Authority: CN
Inventors: 桑树华; 郜元刚
Original assignee: Suzhou Alton Electrical and Mechanical Industry Co Ltd
Current assignee: Suzhou Alton Electrical and Mechanical Industry Co Ltd
Priority date: 2017-04-11
Filing date: 2017-04-11
Publication date: 2023-11-14
Anticipated expiration: 2037-04-11
Also published as: CN106859499A

Abstract

The dust collector comprises a dust barrel and a filter support at least partially positioned in the dust barrel, wherein the lower part of the filter support is provided with a bottom plate and a middle column which integrally extends downwards from the bottom plate, and further, the filter support is also provided with a through hole which is communicated with the upper side of the bottom plate and penetrates through the middle column. The center column is perforated, so that liquid/accumulated water on the upper side of the bottom plate can be discharged through the through holes of the center column, and the upper side of the bottom plate can be kept dry and comfortable.

Description

Dust collector

[ field of technology ]

The invention relates to a dust collector, in particular to a filter bracket structure of the dust collector.

[ background Art ]

The dust collector is a common household cleaning device and has the function of separating dust and chips from air, the dust collector can be roughly divided into a dry dust collector and a wet dust collector, even the dry dust collector is likely to suck liquid/moisture in daily work, the liquid/moisture is likely to be sucked into the dust collector to form more accumulated water or a certain accumulated water layer on the upper side of a bottom plate of a filter bracket, the accumulated water can generate some negative effects, for example, when a filter is replaced, a filter device is inclined, the accumulated water is likely to flow out from a filter paper or a sponge filter layer of a filter cartridge, and the use experience of a user is reduced; the upper side of the base plate is not easy to keep drier, resulting in reduced user comfort.

[ invention ]

The invention aims to solve the problem of providing a dust collector for inhibiting water accumulation on the upper side of a bottom plate of a filter bracket.

In order to solve the technical problems, the invention adopts the following technical scheme: the dust collector comprises a dust barrel and a filter support at least partially positioned in the dust barrel, wherein the lower part of the filter support is provided with a bottom plate and a middle column which integrally extends downwards from the bottom plate, and further, the filter support is also provided with a through hole which is communicated with the upper side of the bottom plate and penetrates through the middle column.

The middle column is perforated, so that liquid/accumulated water on the upper side of the bottom plate can be discharged through the through holes of the middle column, and the upper side of the bottom plate can be kept dry and comfortable.

Further, the dust collector also comprises a filter cylinder sleeved on the outer side of the filter support and an end cap connected with the filter cylinder, wherein the end cap is positioned on the lower side of the bottom plate and provided with a through end hole, and the center column penetrates through the end hole.

Further, the dust collector also comprises a cover body which is arranged at the lower side of the end cap and is assembled on the end cap, and the through hole is used for communicating the upper side of the bottom plate with the inside of the cover body.

Further, the cleaner also comprises a cover body arranged at the lower side of the end cap and assembled with the end cap, and the center column enters the cover body through an end hole of the end cap.

Further, the through hole penetrates downwards from the upper surface of the bottom plate to the lower side of the lower end of the center pillar.

Further, a concave area is formed on the upper side of the bottom plate, and the upper end of the through hole is located in the concave area.

Further, the filter support comprises a plurality of longitudinal ribs and a plurality of rib plates which are circumferentially arranged at intervals, the lower ends of the longitudinal ribs are integrally connected to the bottom plate, the rib plates extend upwards from the bottom plate and are connected with adjacent longitudinal ribs, and the lower end parts of the longitudinal ribs, the rib plates and the bottom plate are surrounded to form the concave area.

Further, the longitudinal ribs comprise longitudinal first ribs and longitudinal second ribs which are intersected, and the rib plates are connected with the adjacent longitudinal second ribs.

Further, the filter support comprises a plurality of longitudinal ribs which are circumferentially arranged at intervals, the longitudinal ribs comprise longitudinal first ribs and longitudinal second ribs which are intersected, the plurality of longitudinal ribs at least comprise two groups of longitudinal ribs, the longitudinal ribs of each group of longitudinal ribs are adjacent in sequence, and the longitudinal first ribs of each group of longitudinal ribs are parallel.

Further, the cross section of the longitudinal second ribs of the longitudinal ribs is arc-shaped extending along the circumferential direction of the filter support and is on the same circumference.

Further, a float is provided in the filter holder at an upper side of the bottom plate, the filter holder includes a support rib position protruding upward from an upper surface of the bottom plate, and the float is supported at the support rib position to be spaced apart from the upper surface of the bottom plate.

Further, the filter support comprises a plurality of longitudinal ribs which are circumferentially arranged at intervals, and the support rib positions respectively extend radially inwards from the corresponding longitudinal ribs.

Further, the longitudinal ribs include intersecting longitudinal first ribs and longitudinal second ribs, and the support ribs extend radially inward from and parallel to the longitudinal first ribs of the corresponding longitudinal ribs, respectively.

Further, the outer peripheral surface of the center column is provided with threads, the end cap is provided with a plurality of clamping pieces for propping against the center column, the clamping pieces are provided with ribs, and in the process that the cover body rotates around the center column along a rotating direction, the cover body pushes each clamping piece to move towards the center column so that the ribs of the clamping pieces are embedded into the threads of the center column.

Further, the center pillar is provided with a threaded portion, the threads are located on the outer peripheral surface of the threaded portion, and in the process that the cover body rotates around the center pillar along the rotation direction, the cover body pushes each clamping piece to move towards the threaded portion, so that the clamping pieces are pressed against the threads of the threaded portion to clamp the threaded portion.

Further, the center post includes a cylindrical shoulder having a radial dimension greater than the threaded portion, the threaded portion extending downwardly from a lower end of the shoulder.

Further, the end cap is provided with a chute and a retaining wall positioned at one end of the chute, the cover body is further provided with a protruding block, the protruding block can rotate along the chute in the process of rotating around the center column along the rotating direction, and when the protruding block further screws the cover body after rotating to the retaining wall along the chute, the protruding block can push against the retaining wall to drive the end cap and the clamping piece to rotate, so that the rib is driven to rotate and climb along the threads.

Further, the end cap is integrally provided with a plurality of first side walls positioned at the outer side of the end cap and a plurality of baffles extending from the corresponding first side walls, each clamping piece integrally extends from the corresponding first side wall, the first side walls and the baffles form the groove wall of the chute, the baffles are used for stopping the protruding blocks to prevent the cover body from being separated from the end cap, and the protruding blocks are upwards propped against the protruding blocks in the process of climbing along the threads by the ribs.

Further, the cover body is provided with a plurality of pushing parts for pushing each clamping piece, one side of the pushing part facing the center column is provided with a first blocking rib, and the clamping pieces upwards push the first blocking ribs positioned on the upper side of the clamping pieces in the climbing process of the ribs along the threads.

Further, the end cap is further provided with an opening communicated with the chute, the blocking wall and the opening are positioned at opposite ends of the chute, the protruding block is limited to rotate between the blocking wall and the opening, and the protruding block can be installed into the opening along the direction parallel to the axis and then rotate around the axis to enter the chute.

Further, the end cap is provided with a plurality of clamping members for pressing the center column, the cover body is provided with a plurality of pressing portions for pressing the clamping members, the clamping members are provided with cam surfaces deviating from the center column, and each pressing portion slides along the cam surface of the corresponding clamping member and presses the cam surface to push the corresponding clamping member to move toward the center column in the rotating process of the cover body around the center column along the rotating direction.

These features and advantages of the present invention will be disclosed in detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a perspective view of a vacuum cleaner of the present invention;

FIG. 2 is a schematic view in partial cross-section of FIG. 1;

FIG. 3 is a perspective view of the filter and tray of the vacuum cleaner of the present invention;

FIG. 4 is a perspective view of FIG. 3 with the cover removed;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is an angled perspective of the end cap;

FIG. 7 is another perspective view of the end cap;

FIG. 8 is a perspective view of the cover at an angle;

FIG. 9 is a top view of the cover;

FIG. 10 is another perspective view of the cover;

FIG. 11 is a perspective view of a filter holder;

FIG. 12 is a longitudinal cross-sectional view taken at an angle to FIG. 3 (with the cross-section taken parallel to axis B and the center post in an undamped state);

FIG. 13 is a longitudinal cross-sectional view taken at an angle to FIG. 3 (with the cross-section taken parallel to axis B and the center post in a clamped condition);

FIG. 14 is a longitudinal cross-sectional view of the other angle of FIG. 3 (the cross-section being parallel to axis B and the center post being clamped);

FIG. 15 is a transverse cross-sectional view taken at an angle to FIG. 3 (with the cross-section taken perpendicular to axis B and the center post in an undamped condition);

fig. 16 is a transverse cross-sectional view of the other angle of fig. 3 (section perpendicular to axis B and center post in clamped condition).

[ detailed description ] of the invention

The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.

In the present invention, "up", "down", "side", "inside" and "outside" are descriptions of the relative positions of the respective objects in the icon, but these words are not used to limit components, compositions, areas, etc.; for the number, several are just examples, and may be set as needed.

Referring to fig. 1 to 16, the cleaner includes a dust bucket 1, a head 2, a filter 3, and a float 93. The dust barrel 1 is provided with an air inlet 10, and the bottom of the dust barrel 1 is provided with four casters 11. The machine head 2 is arranged at the upper end of the dust barrel 1 and is provided with a motor (not shown), an impeller (not shown) and an air outlet 20. The filter device 3 is accommodated in the dust barrel 1, and the filter device 3 is in fluid communication between the air inlet 10 and the impeller for filtering dust. When the dust collector works, the motor drives the impeller to generate negative pressure so that air flow mixed with dust flows into the dust barrel 1 from the air inlet 10, flows into the machine head 2 after being filtered by the filtering device 3, and is discharged out of the dust collector through the air outlet 20.

Referring to fig. 3 to 16, the filter device 3 includes a filter holder 4, a filter tube 92 fitted around the filter holder 4, an end cap 6 connected to one end of the filter tube 92, a cover 7 attached to the outside of the end cap 6, a seal ring 8, an end ring 90, and a tray 91. The filter holder 4 is at least partially located within the dust bin 1. The cover 7 is located on the underside of the end cap 6. The end ring 90 and the end cap 6 are located at opposite ends of the filter cartridge 92, the end ring 90 is connected to the upper end of the filter cartridge 92, the end ring 90 is made of flexible material, and is sealed on the periphery of the lower end of the tray 91, and the tray 91 is locked on the lower end face of the machine head 2. The end cap 6 has a through-going end hole 60, the filter holder 4 is provided with a center post 40, a bottom plate 41, longitudinal ribs 42, circumferential ribs 43, through holes 44, rib plates 45, support rib positions 46, the through holes 44 and the bottom plate 41 are located in the lower part of the filter holder 4, and the center post 40 enters the cover 7 through the end hole 60 of the end cap 6. The through hole 44 is communicated with the upper side of the bottom plate 41 and penetrates through the middle column 40, the through hole 44 is communicated with the upper side of the bottom plate 41 and the inside of the cover body 7, so that at least part of liquid/accumulated water sucked into the cleaner to the upper side of the bottom plate 41 flows into the cover body 7 through the through hole 44, the accumulated water is reduced, the float 93 is also conveniently and normally floated, and the float 93 is prevented from being stuck to the bottom plate 41. The filter holder 4 is integrally formed in a cage shape, the circumferential ribs 43 are integrally formed with and cross the longitudinal ribs 42, and the center pillar 40 integrally extends from the center of the bottom plate 41. The outer side of the filter cartridge 92 defines spaced ridges 920 or pleats and is provided with dust filtering apertures. The center post 40 passes through the end hole 60, and the center post 40 integrally extends downward from the bottom plate 41. The end cap 6 is provided with a plurality of clamping members 61 for pressing the center post 40, and the cover 7 pushes each clamping member 61 to move toward the center post 40 during the rotation of the cover 7 around the center post 40 along the rotation direction a so that the center post 40 is clamped by the clamping members 61. During the rotation of the cover 7 against the rotation direction a, each of the clamps 61 moves in a direction away from the center pillar 40 to release the clamp of the center pillar 40. The number of the holders 61 in the present embodiment is two, but is merely an example, and the number is not limited thereto, and may be set as needed.

The through hole 44 penetrates from the upper surface 410 of the bottom plate 41 downward to the lower side of the lower end of the center pillar 40. The bottom plate 41 is formed at an upper side thereof with a recessed area 411, and an upper end of the through hole 44 is located at the recessed area 411. The bottom plate 41 may be flat or concave. The longitudinal ribs 42 are circumferentially arranged at intervals, the lower ends of the longitudinal ribs 42 are integrally connected with the bottom plate 41, the rib plates 45 extend upwards from the bottom plate 41 and are connected with adjacent longitudinal ribs 42, and the lower ends of the longitudinal ribs 42, the rib plates 45 and the bottom plate 41 are enclosed to form a concave area 411. The annular circumferential ribs 43 are arranged at intervals up and down, and the longitudinal ribs 42 intersect with the circumferential ribs 43 to form a lattice 46 through which air flows. The concave area 411 of the present embodiment is shallower, the concave area 411 is easy to accumulate water, the accumulated water in the concave area 411 can be timely discharged through the through hole 44, and the depth and shape of the concave area 411 are not limited by the present embodiment. The longitudinal ribs 42 include intersecting longitudinal first ribs 420 and longitudinal second ribs 421, with the web 45 connecting adjacent longitudinal second ribs 421. The plurality of longitudinal ribs 42 comprises at least two sets of longitudinal ribs 42, each longitudinal rib 42 of each set of longitudinal ribs 42 being adjacent in turn (adjacent in turn: longitudinal rib 42-1 being adjacent to adjacent longitudinal rib 42-2, longitudinal rib 42-2 being adjacent to adjacent longitudinal rib 42-3), each longitudinal first rib 420-1, 420-2, 420-3 of each set of longitudinal ribs 42 being parallel. The cross section of each longitudinal second rib 421 of the plurality of longitudinal ribs 42 is in the form of an arc extending along the circumference of the filter holder 4 and on the same circumference (cross section, i.e. a section perpendicular to the axis B). The float 93 is located in the filter holder 4 at the upper side of the bottom plate 41, the support rib 46 protrudes upward from the upper surface 410 of the bottom plate 41, and the float 93 is supported by the support rib 46 to be spaced apart from the upper surface 410 of the bottom plate 41, so that the float 93 does not come into contact with the upper surface 410 of the bottom plate 41, and the float 93 easily floats naturally when the liquid level rises. When the liquid level rises to a certain height, the float 93 rising to a predetermined height can block the air inlet between the head 2 and the filter holder 4, and inhibit the liquid from being sucked into the head 2. The support rib locations 46 each extend radially inward from the corresponding longitudinal rib 42. The support rib locations 46 each extend radially inward from a longitudinal first rib 420 of the corresponding longitudinal rib 42 and parallel to the longitudinal first rib 420 of the corresponding longitudinal rib 42.

When the cover 7 rotates, the cover rotates about an axis B passing through the end hole 60 and the center post 40 of the cover 7, and in this embodiment, the axis B is the center line of the center post 40 and also the center line of the filter cartridge 92. The cover 7 is provided with a plurality of pushing parts 70, the pushing parts 70 are in one-to-one correspondence with the clamping pieces 61, and each pushing part 70 rotates along with the cover 7 in the rotating process of the cover 7. When the cover 7 is in a first position (see fig. 16, in which the middle post 40 is clamped, the protrusions 72 are stopped by the blocking walls 55), the pushing portions 70 push the corresponding clamping members 61 toward the middle post 40 to clamp the middle post 40, and the cover 7 rotates from the first position around the middle post 40 to a second position (see fig. 15, in which the middle post 40 is unclamped, the protrusions 72 are located at the openings 54), and the pushing portions 70 rotate along with the cover 7 and the clamping members 61 move away from the middle post 40 to unclamp the middle post 40. The center post 40 is perpendicular to the end cap 6, the end cap 6 has a disk shape, and the through hole 44 is located at the center of the end cap 6.

During the rotation of the cover 7 around the center post 40 along the rotation direction a, each pushing portion 70 rotates along with the cover 7, and pushes the corresponding clamping member 61 to move toward the center post 40 so that the plurality of clamping members 61 clamp the center post 40. The clamping member 61 is provided with a cam surface 62 facing away from the center post 40, and each abutment 70 slides along the cam surface 62 of the corresponding clamping member 61 and abuts against the cam surface 62 to push the corresponding clamping member 61 toward the center post 40 during rotation of the cover 7 about the center post 40 in the rotation direction a. During the rotation of the cover 7 along the rotation direction a, the pushing portion 70 slides sequentially over any first area and any second area on the cam surface 62; when the cover 7 is in any position between the first position and the second position, the vertical distance of the second region from the axis B is greater than the vertical distance of the first region from the axis B. Each pushing portion 70 abuts against a third area of the cam surface 62 of the corresponding clamping member 61 when the cover 7 is in the first position, each pushing portion 70 abuts against a fourth area of the cam surface 62 of the corresponding clamping member 61 when the cover 7 is in the second position, and a vertical distance between the third area and the axis B of the cover 7 is greater than a vertical distance between the fourth area and the axis B when the cover 7 is in any position between the first position and the second position. The area of the cam surface 62 over which the abutment 70 slides comprises a line area lying on a plane perpendicular to the axis B, i.e. the line area is the intersection of said plane with the area of the cam surface 62 over which the abutment 70 slides; when the cover 7 is at the first position, the vertical distance from the point where the pushing part 70 slides first along the rotation direction a to the axis B is smaller than the vertical distance from the point where the pushing part 70 slides later to the axis B; when the cover 7 is at the second position, the vertical distance from the point on the line area where the pushing part 70 slides first along the rotation direction a to the axis B is smaller than the vertical distance from the point on the line area where the pushing part 70 slides later to the axis B; when the cover 7 is at any position between the first position and the second position, the vertical distance from the point on the line area where the pushing portion 70 slides first along the rotation direction a to the axis B is smaller than the vertical distance from the point on the line area where the pushing portion 70 slides later to the axis B.

The outer circumferential surface of the center post 40 is provided with threads 400, the clamping pieces 61 are provided with ribs 610 corresponding to the threads 400 of the center post 40, and when the cover 7 rotates around the center post 40 along the rotation direction a, the cover 7 pushes each clamping piece 61 to move towards the center post 40 so that the plurality of clamping pieces 61 clamp the center post 40 and the ribs 610 are embedded into the threads 400 of the center post 40. The threads 400 are double-ended threads and comprise a first thread 401 and a second thread 402 which can be overlapped with the first thread 401 after rotating 180 degrees around the axis of the middle column 40, the number of the clamping pieces 61 is two, and the rib 610 of one clamping piece 61 can be overlapped with the rib 610 of the other clamping piece 61 after rotating 180 degrees around the middle column 40; one of the clamping members 61 can be overlapped with the other clamping member 61 after rotating 180 degrees around the center post 40, and after the two clamping members 61 clamp the center post 40, the rib 610 of one clamping member 61 is correspondingly embedded into the first thread 401, and the rib 610 of the other clamping member 61 is correspondingly embedded into the second thread 402. The center post 40 includes a threaded portion 403 and a shoulder 404, and the thread 400 is located on the outer peripheral surface of the threaded portion 403.

During rotation of the cover 7 around the center post 40 in the rotation direction a, each pushing portion 70 follows the cover 7 to rotate, and each pushing portion 70 slides along the cam surface 62 of the corresponding clip 61 and pushes the cam surface 62 to push the corresponding clip 61 to move toward the center post 40. The cam surface 62 causes the clamping member 61 to function like a cam. During the rotation of the cover 7 around the center post 40 along the rotation direction a, the cover 7 pushes each clamping member 61 to move toward the threaded portion 403, so that the plurality of clamping members 61 press against the threads 400 of the threaded portion 403 to clamp the threaded portion 403. The shoulder 404 has a cylindrical shape having a radial dimension larger than that of the screw portion 403, and the screw portion 403 extends downward from the lower end of the shoulder 404.

The clamping member 61 is a cantilevered arm integrally connected to the end cap 6 and is curved in a direction perpendicular to the axis B. The clamps 61 include an elastic portion 63 integrally extended from the end cap 6 and a clamping portion 64 further extended from the elastic portion 63, and each clamp 61 clamps the center pillar 40 by the clamping portion 64 provided. During the rotation of the cover 7 against the rotation direction a, each of the clamping portions 64 moves in a direction away from the center pillar 40 by the elastic force of the corresponding elastic portion 63, thereby releasing the clamping of the center pillar 40. The cam surface 62 is provided at the holding portion 64, and the pushing portion 70 pushes the holding portion 64 to move toward the center post 40 by deformation of the elastic portion 63. The clamping portion 64 is further provided with a concave surface 65 facing away from the cam surface 62 and a deformation opening 66, and when each clamping member 61 clamps the center pillar 40, the concave surface 65 is pressed against the center pillar 40, and the concave surface 65 is preferably arc-shaped to conform to the contour of the center pillar 40. The clamping portion 64 has an arc shape protruding in a direction away from the axis B. The deformation opening 66 is located between the cam surface 62 and the concave surface 65 to reduce deformation of the clamping portion 64 during molding. The clamping portion 64 is part of a cam, having a cam-like effect, and during rotation of the cover 7 in the direction of rotation a, the pushing portion 70 presses the clamping member 61 against the center post 40 or the axis B more and more, so that the clamping member 61 gets closer to the center post 40 and eventually clamps the center post 40, and the cam surface 62 gets farther from the axis B the closer to the free end of the clamping member 61.

The clamps 61 are further provided with a third guide slope 68 guiding the insertion of the center post 40 between the clamps 61, the third guide slope 68 being inclined with respect to the axis B. The third guiding inclined surface 68 is located on the upper side of the clamping member 61 and is provided at the corresponding clamping portion 64. The end cap 6 is provided with a recessed area 50 recessed upward from the lower side thereof, an end plate 51 corresponding to the recessed area 50, a plurality of first side walls 52, a baffle 53 bent and extended from each of the first side walls 52, an opening 54, a baffle wall 55, a plurality of second side walls 56, and a first annular rib 590. The bottom plate 41 is spaced opposite the end plate 51. The first side wall 52 extends downwards from the end plate 51 and is in a circular arc shape; the second side wall 56 extends downwards from the end plate 51 and is in a circular arc shape; the first side wall 52 and the second side wall 56 are arranged around the periphery of the middle column 40, and the inner diameter of the second side wall 56 is larger than the outer diameter of the first side wall 52; a baffle wall 55 is connected between the end plate 51 and the baffle 53, and the baffle wall 55 is vertically and integrally connected to the end plate 51. The first side wall 52, the second side wall 56, the baffle 53, the opening 54, the baffle wall 55, and the first annular rib 590 are located in the recessed area 50, the outer diameter of the cover 7 is smaller than the inner diameter of the recessed area 50, and the cover 7 is located or partially located in the recessed area 50. The end plate 51 is provided with a plurality of through openings 570 corresponding to the baffles 53 and penetrating the end plate 51 at the periphery of the first side wall 52, sliding grooves 571 are formed between the through openings 570 and the baffles 53 at intervals and positioned at the periphery of the first side wall 52, or sliding grooves 571 are formed between the end plate 51 and the baffles 53 at intervals and positioned at the periphery of the first side wall 52, and the first side wall 52 and the baffles 53 form groove walls of the sliding grooves 571. The projection of the baffle 53 along the axis B is covered by the projection of the corresponding through hole 570 along the axis B, and since the baffle 53 is positioned in the concave area 50, the baffle 53 is difficult to be demolded during molding, the through hole 570 is convenient to be demolded along the axis B during molding the baffle 53, so that the baffle 53 is easy to be molded; the baffle 53 is provided with a first guide inclined surface 530 for guiding the protruding block 72 into the opening 54 and a second guide inclined surface (not shown) for guiding the protruding block 72 out of the opening 54, wherein the first guide inclined surface 530 is positioned at the lower side of the second guide inclined surface and is splayed with the second guide inclined surface; the protrusion 72 is limited in the opening 54 after entering the opening 54, and the circumferential dimension of the opening 54 is smaller than the circumferential dimension of the protrusion 72; when the cover 7 is detached from the end cap 6, a certain external force needs to be applied, and the projection 72 can prop the opening 54 a certain distance under the guidance of the second guiding inclined plane so as to separate from the opening 54. In this embodiment, the protrusion 72 can be snapped into the opening 54 along the axis B during assembly, so that the opening 54 has a certain retention force on the protrusion 72, which is beneficial for the cover 7 to be retained on the end cap 6 when the protrusion 72 is at the position of the opening 54; the protrusions 72 are provided at both sides thereof with sixth guide slopes 720 for guiding the protrusions 72 into the openings 54, respectively. The baffle 53 and the clamping piece 61 are positioned on two opposite sides of the first side wall 52; the baffle 53 extends radially outwardly from each of the first side walls 52. The chute 571 extends in a circumferential direction around the axis B, the chute 571 being arcuate and the baffle 53 being perpendicular to the axis B.

The clamping member 61 extends from the first side wall 52, the first side wall 52 is circular arc-shaped, and the elastic portion 63 of the clamping member 61 is integrally connected to the first side wall 52. The outer edge of the second sidewall 56 is on the same circumference as the outer edge of the baffle 53 (i.e., the outer diameters of the two are equal). The first side walls 52 and the second side walls 56 are staggered, the baffles 53 and the second side walls 56 are staggered, the openings 54 are formed between one ends of the second side walls 56 and one ends of the baffles 53, the baffle walls 55 are provided with first side edges 551 facing away from the center post 40 and second side edges 550 located between the first side edges 551 and the center post 40, the first side walls 52 extend from the second side edges 550 against the rotating direction a, and the second side walls 56 extend from the first side edges 551 along the rotating direction a. The retaining wall 55 and the opening 54 are located at opposite ends of the chute 571, and the projection 72 is limited to rotation between the retaining wall 55 and the opening 54, thereby limiting the rotation angle of the cover 7 relative to the end cap 6. The baffle wall 55 and the opening 54 are located at opposite ends of the baffle 53. The second side wall 56 is provided with a fifth guiding inclined plane 560 for guiding the protrusion 72 into the opening 54, the fifth guiding inclined plane 560 and the first guiding inclined plane 530 are located at opposite sides of the opening 54, and the fifth guiding inclined plane 560 and the second guiding inclined plane are located at opposite sides of the opening 54.

The cover 7 is provided with a cover plate 73, an annular peripheral wall 71 integrally connected to the outer periphery of the cover plate 73, and a plurality of the aforementioned projections 72 extending radially inward from the peripheral wall 71. The lug 72 can be inserted into the opening 54 along the direction parallel to the axis B and then rotated around the axis B to enter the chute 571 when the cover 7 is mounted; when the lug 72 is positioned in the sliding groove 571, the baffle 53 is abutted against the lug 72 and positioned between the lug 72 and the cover plate 73; the upper end edge of the peripheral wall 71 is formed with an annular flange 710 extending radially outwardly, the flange 710 is provided with an annular groove 711 recessed in a direction away from the end plate 51, the end hole 60, each first side wall 52, each through hole 570 are located in a region surrounded by a first annular rib 590, and the first annular rib 590 enters the annular groove 711 and presses the seal ring 8 located in the annular groove 711 in a direction away from the end plate 51. A first annular rib 590 may also be provided on the cover 7 and correspondingly, an annular groove 711 is provided on the end cap 6. The end hole 60 is irregularly shaped, and the projection of the clamping piece 61 along the axis B is covered by the projection of the clamping piece 61 along the axis B, so that the clamping piece 61 is in the concave area 50, and the clamping piece 61 is difficult to be demolded during molding, so that the end hole 60 is provided for the middle column 40 to pass through, and the baffle 53 is easy to mold due to the effect of facilitating the demolding during molding of the clamping piece 61. In the process of rotating the cover 7 around the center post 40 along the rotation direction a, the protruding block 72 can rotate along the sliding groove 571 along the cover 7, when the protruding block 72 rotates along the sliding groove 571 to the baffle wall 55 and then further screws the cover 7, the protruding block 72 can push the baffle wall 55 to drive the end cap 6 and the clamping piece 61 to rotate, the rib 610 is driven to rotate to climb along the thread 400, and in the process of climbing the rib 610 along the thread 400, the cover 7 moves up along the sliding groove 571, and the baffle 53 pushes the protruding block 72 upwards.

The peripheral wall 71 and the cover plate 73 form a housing chamber, the pushing portion 70 is housed in the housing chamber and integrally extends upward from the cover plate 73, and the projection 72 is housed in the housing chamber and integrally extends from the peripheral wall 71. The abutment 70 extends in a direction parallel to the axis B and the projection 72 extends in a direction perpendicular to the axis B. The shutter 53, the first side wall 52, the second side wall 56, and the holder 61 are accommodated in the accommodating chamber. The cover 7 is further provided with a plurality of reinforcing ribs 76, the reinforcing ribs 76 are connected between the cover 73 and the pushing portion 70, and the reinforcing ribs 76 are also connected between the peripheral wall 71 and the pushing portion 70.

The side of the pushing portion 70 facing the center post 40 is provided with a first blocking rib 700, the pushing portion 70 is provided with a pushing surface 701 for pushing the cam surface 62, the pushing surface 701 is a curved surface matched with the cam surface 62, the first blocking rib 700 protrudes from the pushing surface 701, the pushing surface 701 can be in a circular arc shape or a non-circular arc shape, and the pushing surface 701 is preferably: the closer the pressing surface 701 is to the elastic portion 63 of the corresponding clip 61, the closer to the axis B. During the ascent of the rib 610 along the thread 400, the clamping member 61 pushes up against the first rib 700 located at the upper side thereof.

The cover 7 is further provided with a second rib 702 located at the lower side of the clip 61, the clip 61 being abutted up and down against the second rib 702 or having an up-down gap, the clip 61 overlapping with a projected portion of the second rib 702 along the axis B when the clip 61 is in a state of clamping the center pillar 40 and/or when the projection 72 is located in the opening 54, whereby the second rib 702 abuts against the clip 61 to suppress downward deflection of the clip 61. The clearance between the second rib 702 and the clamping member 61 along the axis B is 0mm-3mm, preferably 0.5mm or 1mm. The second ribs 702 are connected between the pushing portions 70. The second rib 702 integrally extends from the cover 73 along the direction parallel to the axis B, and is connected between the pushing portions 70. The screw portion 403 enters the space surrounded by the second rib 702.

The end cap 6 is also provided with a number of guides 74 and a second annular rib 75. The guide 74 is located inside the end cap 6 and is disposed at the periphery of the end hole 60, and the guide 74 is provided with a fourth guide slope 740 for guiding the insertion of the center post 40 into the end hole 60. The end hole 60 and each guide piece 74 are located within the range defined by the second annular rib 75, each guide piece 74 is integrally connected with the second annular rib 75, the projection of the first side wall 52 along the axis B is covered by the projection of the second annular rib 75 along the axis B, the through hole 570 is also located at the periphery of the second annular rib 75, and the second annular rib 75 is in a circular ring shape.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that the present invention includes but is not limited to the accompanying drawings and the description of the above specific embodiment. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.

Claims

1. The dust collector comprises a dust barrel and a filter bracket at least partially positioned in the dust barrel, wherein the lower part of the filter bracket is provided with a bottom plate and a middle column which integrally extends downwards from the bottom plate, and the dust collector is characterized in that: the filter bracket is also provided with a through hole which is communicated with the upper side of the bottom plate and penetrates through the middle column; the dust collector also comprises a filter cylinder sleeved outside the filter bracket, an end cap connected to the filter cylinder, and a cover body positioned at the lower side of the end cap and assembled on the end cap, wherein the end cap is positioned at the lower side of the bottom plate and provided with a through end hole, the center column penetrates through the end hole, and the through hole is used for communicating the upper side of the bottom plate with the inside of the cover body; the cleaner also includes an end ring positioned at opposite ends of the filter cartridge from the end ring and the end cap.

2. A vacuum cleaner as claimed in claim 1, wherein: the end ring is connected to the upper end of cartridge filter, and the end ring adopts flexible material.

3. A vacuum cleaner as claimed in claim 1, wherein: the outer side of the filter cartridge forms ridges or folds arranged alternately and is provided with pores for filtering dust.

4. A vacuum cleaner as claimed in claim 1, wherein: the center post enters the cover body through the end hole of the end cap.

5. A vacuum cleaner as claimed in claim 1, wherein: the through hole penetrates downwards from the upper surface of the bottom plate to the lower side of the lower end of the center column.

6. A vacuum cleaner as claimed in claim 1, wherein: the upper side of the bottom plate is provided with a concave area, and the upper end of the through hole is positioned in the concave area.

7. A vacuum cleaner as claimed in claim 6, wherein: the filter support comprises a plurality of longitudinal ribs and a plurality of rib plates which are circumferentially arranged at intervals, the lower ends of the longitudinal ribs are integrally connected with the bottom plate, the rib plates extend upwards from the bottom plate and are connected with adjacent longitudinal ribs, and the lower end parts of the longitudinal ribs, the rib plates and the bottom plate are enclosed to form the concave area.

8. A vacuum cleaner as claimed in claim 7, wherein: the longitudinal ribs comprise longitudinal first ribs and longitudinal second ribs which are intersected, and the rib plates are connected with the adjacent longitudinal second ribs.

9. A vacuum cleaner as claimed in claim 1, wherein: the filter support comprises a plurality of longitudinal ribs which are circumferentially arranged at intervals, the longitudinal ribs comprise longitudinal first ribs and longitudinal second ribs which are intersected, the longitudinal ribs at least comprise two groups of longitudinal ribs, the longitudinal ribs of each group of longitudinal ribs are adjacent in sequence, and the longitudinal first ribs of each group of longitudinal ribs are parallel.

10. A vacuum cleaner as claimed in claim 9, wherein: the cross section of the longitudinal second ribs of the longitudinal ribs is arc-shaped extending along the circumferential direction of the filter support and is on the same circumference.

11. A vacuum cleaner as claimed in claim 1, wherein: the filter support comprises a support rib position protruding upwards from the upper surface of the bottom plate, and the floats are supported on the support rib position and are spaced from the upper surface of the bottom plate.

12. A vacuum cleaner as claimed in claim 11, wherein: the filter support comprises a plurality of longitudinal ribs which are circumferentially arranged at intervals, and the support rib positions extend inwards from the corresponding longitudinal ribs in a radial direction.

13. A vacuum cleaner as claimed in claim 12, wherein: the longitudinal ribs comprise longitudinal first ribs and longitudinal second ribs which are intersected, and the supporting ribs respectively extend radially inwards from the longitudinal first ribs of the corresponding longitudinal ribs and are parallel to the longitudinal first ribs of the corresponding longitudinal ribs.

14. A vacuum cleaner as claimed in claim 1, wherein: the outer peripheral surface of center pillar is equipped with the screw thread, the end cap is equipped with a plurality of holders that are used for supporting the pressure center pillar, and the holder is equipped with the rib, the lid is along a direction of rotation around the center pillar in-process, the lid promotes each holder to the center pillar removal and makes the screw thread of the embedding center pillar of rib of a plurality of holders.

15. A vacuum cleaner as claimed in claim 14, wherein: the center column is provided with a thread part, the thread is positioned on the outer peripheral surface of the thread part, and the cover body pushes each clamping piece to move towards the thread part in the rotating process of the cover body around the center column along the rotating direction, so that the clamping pieces are propped against the thread of the thread part to clamp the thread part.

16. A vacuum cleaner as claimed in claim 15, wherein: the center post includes a cylindrical shoulder having a radial dimension greater than the threaded portion extending downwardly from a lower end of the shoulder.

17. A vacuum cleaner as claimed in claim 14, wherein: the end cap is provided with a chute and a retaining wall positioned at one end of the chute, the cover body is further provided with a protruding block, the protruding block can rotate along the chute in the process of rotating around the center column along the rotating direction, and when the protruding block further screws the cover body after rotating to the retaining wall along the chute, the protruding block can push against the retaining wall to drive the end cap and the clamping piece to rotate, so that the rib is driven to rotate and climb along the threads.

18. A vacuum cleaner as claimed in claim 17, wherein: the end cap is integrative to be equipped with a plurality of first lateral walls that are located its outside, a plurality of baffles that extend from corresponding first lateral wall, and each holder is integrative to extend from corresponding first lateral wall, and first lateral wall and baffle constitute the cell wall of spout, the baffle is used for stopping the lug in order to prevent that the lid from breaking away from the end cap, the rib is along the screw thread in-process of climbing, the baffle upwards supports and pushes away the lug.

19. A vacuum cleaner as claimed in claim 17, wherein: the cover body is provided with a plurality of pushing parts for pushing each clamping piece, one side of the pushing part facing the center column is provided with a first blocking rib, and the clamping pieces upwards push the first blocking ribs positioned on the upper side of the clamping pieces in the climbing process of the ribs along the threads.

20. A vacuum cleaner as claimed in claim 17, wherein: the end cap is also provided with an opening communicated with the chute, the retaining wall and the opening are positioned at the opposite ends of the chute, the lug is limited to rotate between the retaining wall and the opening, and the lug can be installed into the opening along the direction of the parallel axis and then rotate around the axis to enter the chute.

21. A vacuum cleaner as claimed in claim 14, wherein: the end cap is provided with a plurality of clamping pieces for propping against the center column, the cover body is provided with a plurality of propping parts for propping against the clamping pieces, the clamping pieces are provided with cam surfaces deviating from the center column, and each propping part slides along the cam surfaces of the corresponding clamping pieces and props against the cam surfaces to push the corresponding clamping pieces to move toward the center column in the rotating process of the cover body around the center column along the rotating direction.