CN215016733U - Cleaning head and dust collector - Google Patents

Abstract

The utility model provides a cleaning head, including casing and brush-holder stud, the cavity is injectd to the casing, the brush-holder stud sets up at least partially in the cavity be equipped with first scraper blade in the casing, first scraper blade along the length direction of brush-holder stud extends, first scraper blade is used for doing will adhere to when the brush-holder stud rotates debris on the brush-holder stud are scraped or are scraped the pine, first scraper blade package rubbing board body, the plate body has the lower limb, the lower limb is the arc form that sinks gradually from the centre to both ends, the plate body along the lower limb has been arranged a plurality of effects the claw of scraping of brush-holder stud, a plurality of claws along scraper blade length direction interval sets up. The utility model discloses scrape the tiny rubbish that is stained with on the brush-holder stud more easily and fall or scrape the pine.

Description

Cleaning head and dust collector

Technical Field

The utility model relates to a hand-held type dust catcher technical field especially relates to a cleaning head and dust catcher.

Background

A cleaner head for a vacuum cleaner comprises a brush bar located within a housing. The brush rod is driven by the motor to rotate relative to the shell to clean the surface to be cleaned and enter the cavity of the shell, and then sundries in the cleaning head are sucked away by the connected negative pressure device. Some sundries with strong adhesive force can be adhered to the brush rod and cannot be sucked away, so that a scraping plate needs to be arranged in the shell, the brush rod rotates relative to the scraping plate, and the scraping plate scrapes or loosens the sundries adhered to the brush rod so as to be convenient for being sucked away through the negative pressure device. However, the conventional scraper is smooth, and it is difficult to scrape or loosen stubborn impurities adhered to the brush bar, but the impurities are more and more adhered to the brush bar.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve one of the technical problems in the related art to a certain extent, it is necessary to provide a cleaner head and a vacuum cleaner, in which a scraper blade can more easily scrape or loosen fine garbage stuck on a brush rod and can gather the fine garbage to a middle portion.

The utility model provides a cleaning head, including casing and brush-holder stud, the cavity is injectd to the casing, the brush-holder stud sets up at least partially in the cavity be equipped with first scraper blade in the casing, first scraper blade along the length direction of brush-holder stud extends, first scraper blade is used for doing will adhere to when the brush-holder stud rotates debris on the brush-holder stud are scraped or are scraped the pine, first scraper blade package rubbing board body, the plate body has the lower limb, the lower limb is the arc form that sinks gradually from the centre to both ends, the plate body along the lower limb has been arranged a plurality of effects the claw of scraping of brush-holder stud, a plurality of claws along scraper blade length direction interval sets up.

Further, the scraping claws extend downward beyond the lower edge, and the scraping claws form claw portions at lower end portions thereof.

Further, the plate body has a surface adjacent to the brush bar, the surface extending substantially along the outer surface of the brush bar, and the scraping claws are circumferentially extending bars on the convex surface.

Further, the scraping claw is used for extending into the brush rod.

Furthermore, a second scraper is arranged in the shell and used for scraping and brushing the brush rod for the second time, the second scraper is located above the first scraper and extends along the length direction of the brush rod, and a sundries channel opening is formed between the first scraper and the second scraper.

Further, the second scraping plate scrapes the brush rod for the second time through a scraping edge formed by the lower edge.

Further, the scraping edge is linear extending along the longitudinal direction of the brush bar.

The utility model provides a dust collector, the dust collector has adopted the cleaning head.

It is visible through above scheme, the utility model discloses following beneficial effect has: the utility model discloses the first scraper blade package rubbing board body that sets up in the casing, the plate body has the lower limb, and the lower limb is for the arc form that sinks gradually to both ends from the middle to the plate body is arranged the scraping claw of a plurality of effects brush-bars along the lower limb, and a plurality of scraping claws set up along scraper blade length direction interval, with this, scrape or scrape the pine to be stained with tiny rubbish glutinous on the brush-bar more easily, and the lower limb of arc form can gather together rubbish to the middle part.

Drawings

Fig. 1 is a schematic structural view of the cleaning head of the present invention.

Figure 2 is a partial cross-sectional view of a cleaning head of the present invention.

Fig. 3 is a cross-sectional view of the brush rod taken out.

Fig. 4 is an assembly diagram of the present invention.

Fig. 5 is a schematic structural view of the brush bar of the present invention.

Fig. 6 is an enlarged view of fig. 3 at a.

Fig. 7 is a partial cross-sectional view at a-a of fig. 2.

Fig. 8 is a schematic structural view of the air duct of the present invention.

Fig. 9 is a schematic structural view of the outer tube of the present invention.

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that 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. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 3, fig. 1 shows the structure of the cleaning head 100, and fig. 2 shows the sectional structure of the cleaning head 100. The cleaner head 100 comprises a housing 110 and a brush bar 120 connected to the housing 110, the housing 110 is connected to an adapter 200, and the adapter 200 is perpendicular to an axial center O of the brush bar 120 when viewed from the front, and is connected to a connecting rod (not shown) through the adapter 200, and the connecting rod is connected to a negative pressure device (not shown) to form a cleaner.

The housing 110 defines a cavity 111 and the brush bar 120 is at least partially received within the cavity 111. The casing 110 is provided with a first side plate 11 and a second side plate 12 at two ends of the cavity 111, the casing 110 is provided with a top plate 13 above the cavity 111, the casing 110 is provided with a rear side part 14 behind the cavity 111, the top plate 13, the rear side part 14, the first side plate 11 and the second side plate 12 jointly define an opening 112 of the cavity 111, and the brush bar 120 is exposed through the opening 112. The first side plate 11 and the second side plate 12 may be formed integrally with the rear side portion 14.

A roller 15 is further provided at a position of the bottom surface of the rear side portion 14, the roller 15 is partially accommodated in the housing 110 and the lower portion protrudes out of the bottom surface of the housing 110, and the roller 15 slightly suspends the housing 110 so that the housing 110 has a slight gap with the surface to be cleaned.

Referring to fig. 4, the brush bar 120 has a first end 41 and a second end 42, the brush bar 120 is disposed transversely along the axial center O, the first end 41 is connected to the first side plate 11, the second end 42 is connected to the second side plate 12, the lower end of the brush bar 120 and the bottom surface of the rear portion 14 form the debris inlet 16, and the brush bar 120 and the rear portion 14 together define the debris collecting chamber 17. The rear portion 14 is provided with a debris outlet 141, and the debris outlet 141 communicates with the debris collection chamber 17. In the process that the brush rod 120 rotates around the rotation axis O, sundries attached to the surface to be cleaned can be swept into the sundries collecting cavity 17, the negative pressure device generates negative pressure, so that the sundries in the sundries collecting cavity 17 enter the negative pressure device from the sundries outlet 141, dirty air is filtered through the negative pressure device, and the filtered air is discharged from an air outlet of the negative pressure device.

Referring to fig. 5, the brush bar 120 includes an outer cylinder 21 and a flexible brush layer 22 disposed on the outer circumference of the outer cylinder 21, and the flexible brush layer 22 is used to sweep or adhere foreign matters attached to a surface to be cleaned. The brush bar 120 is driven to rotate relative to the housing 110 by the motor 23. The motor 23 is at least partially disposed within the outer barrel 21. in the present embodiment, the motor 23 is completely disposed within the outer barrel 21. The motor 23 includes a stator 231 and a rotor 232, the rotor 232 is connected to the outer cylinder 21 for driving the outer cylinder 21 to rotate, and the stator 231 is fixed relative to the housing 110, so that when the cleaner head 100 is in operation, the stator 231 is fixed relative to the housing 110, and the rotor 232 rotates the brush bar 120. The motor 23 can be an external rotor motor 23.

The first end 211 of the outer cylinder 21 is rotatably connected to the first side plate 11. A shaft connector 30 is fixed on the first side plate 11, and the shaft connector 30 is inserted into the first end 41 of the brush stick 120 to realize the rotary connection of the brush stick 120 and the first side plate 11.

The second end 212 of the outer tub 21 is provided with an electrical connector 24, the electrical connector 24 comprising a housing 241 and an electrical connection point 242 mounted through the housing 241, the housing 241 being an end shell which is rotatably connected with the second end 212 of the outer tub 21 by a bearing 25. The electrical connector 24 is electrically connected with the motor 23, the electrical connector 24 is used for electrically connecting with another electrical connector 123 on the second side plate 12, and the other electrical connector 123 can be electrically connected with a negative pressure device, so that an external power supply and/or a control signal are input to the motor 23 through the electrical connector 24 to enable the motor 23 to work or be controlled.

The electric connector 24 is fixed with the stator 231 through the sleeve 26, so that the electric connector 24 and the stator 231 are relatively fixed, the gravity center of the motor 23 is approximately located at the axial center of the outer cylinder 21, the gravity center position of the brush bar 120 generally changes along with the change of the position of the motor 23, and when the gravity center of the motor 23 is approximately located at the axial center of the outer cylinder 21, the gravity center of the brush bar 120 is approximately located at the axial center, therefore, in the process of pushing the cleaning head 100 to move along the surface to be cleaned by a user, the pushing force is intersected with the gravity center of the brush bar 120, the cleaning head 100 is not easy to deflect to one end, and the labor is saved. Of course, the electrical connector 24 may be directly fixed to the stator 231 without considering the effect of the center of gravity.

Referring to fig. 6, the second side plate 12 has a slot 121, the slot 121 faces the opening 112 of the cavity 111, the brush rod 120 is inserted into the cavity 111 from the opening 112, the first end 41 of the brush rod 120 is obliquely inserted into the shaft connector 30, and the electrical connector 24 at the second end 42 is placed in the slot 121, so that the electrical connector 24 is electrically connected to another electrical connector 123 on the second side plate 12. A pressing plate 31 is connected to the second side plate 12, the pressing plate 31 is used for pressing and fixing the electrical connector 24 in the slot 121, and a user can open the pressing plate 31 to take the brush bar 120 out of the cavity 111 for cleaning or maintenance. It will be appreciated that the first end of the brush bar 120 may likewise be pressed against another pressure plate 31 provided on the first side plate 11, such that the first end of the brush bar 120 is rotatably connected to the first side plate 11.

In the present embodiment, one end of the pressing plate 31 is hinged to the second side plate 12 so that the pressing plate 31 rotates to press the electric connector 24 into the slot 121 by the pressing plate 31 or release the pressing state of the electric connector 24 by the pressing plate 31. The second side plate 12 is provided with a movable buckle 32 (fig. 1), the movable buckle 32 is used for fastening or releasing the other end of the pressure plate 31, when the pressure plate 31 is in a fastened state, the electrical connector 24 is pressed in the slot 121, and when the pressure plate 31 is in a released state, the electrical connector 24 is released from the pressed state.

Referring to fig. 7, the movable button 32 is provided with a first magnetic body 51, the pressing plate 31 is provided with a second magnetic body 52 corresponding to the first magnetic body 51, the same poles of the first magnetic body 51 and the second magnetic body 52 are opposite, and after the movable button 32 releases the pressing plate, the first magnetic body 51 and the second magnetic body 52 repel each other to bounce the pressing plate. It is understood that the first magnetic body 51 may also be provided on the second side plate 12.

The movable button 32 extends out of the outer side of the second side plate 12 for pressing by the user. The movable buckle 32 includes a sliding portion 321 and a hook portion 322, the sliding direction of the sliding portion 321 is parallel to the second side plate 12, and the user presses the movable buckle 32 on the outer side surface of the second side plate 12 along the outer side surface. The pressing plate 31 has a slide groove 301, a latch 302 is formed on a side wall of the slide groove 301, and the hook 322 is inserted into the slide groove 301 and moves in the slide groove 301, so that the hook 322 is engaged with or disengaged from the latch 302. The first magnetic body 51 is disposed on the hook portion 322, and the second magnetic body 52 is disposed on the bottom surface of the slide groove 301. The movable buckle 32 is connected with a pre-tightening spring 33, and the pre-tightening spring 33 provides pre-tightening force for the movable buckle 32, so that the movable buckle 32 keeps the other end of the pressing plate 31 in a fastening state.

It will be appreciated that in other embodiments, a slot may also be provided in the first side plate 11, the slot may be substantially semi-circular in shape, and another pressing plate may also be provided on the first side plate 11, and the first end of the brush bar 120 may be inserted into the slot of the first side plate 11 and pressed by the other pressing plate provided on the first side plate 11, such that the first end of the brush bar 120 is rotatably connected to the first side plate 11.

It is understood that, in other embodiments, the motor 23 may not be disposed in the outer barrel 21, but disposed in the housing 100, the motor 23 drives the brush rod 120 to rotate integrally through the gear, both ends of the brush rod 120 are rotatably connected to the housing, at this time, the slot 121 disposed on the second side plate 12 may be modified into a semicircular shape, the second end of the brush rod 120 is inserted into the slot 121 on the second side plate 12, the pressing plate 31 presses the end of the brush rod 120, so that the second end of the brush rod 120 is rotatably connected to the second side plate 12, and the pressing plate 31 is opened to take out the brush rod 120.

With continued reference to fig. 5, the first end 211 and the second end 212 of the outer barrel 21 are each provided with a vent 40, the vent 40 at the first end 211 is disposed on the outer shell 241 of the electrical connector 24, and the vent 40 at the second end 212 is disposed on the other end shell 201.

The ventilation ports 40 are formed with an air flow passage 130 therebetween in the outer cylinder 21, and the air flow passage 130 is formed transversely in the outer cylinder 21. The motor 23 is disposed in the airflow passage 130, and the rotor 232 is connected with fan blades 233. While the rotor 232 rotates the outer cylinder 21 about the rotation axis, the fan blades 233 also rotate with the rotor 232, thereby disturbing the air to form an air flow, which flows in the air flow passage 130 through the ventilation openings 40, so that the heat dissipated by the motor 23 located in the air flow passage 130 during operation can flow out of the brush bar 120 with the air flow.

The first side plate 11 is provided with a first vent 101 at a position corresponding to the vent 40 at the first end, the second side plate 12 is provided with a second vent 102 at a position corresponding to the electrical connector 24, and air outside the housing 110 passes through the first vent 101 and the second vent 102 and enters or exits the aligned vent 40, so that the air outside the housing 110 flows into or exits the vent 130.

The motor 23 may have an air inlet 251 and an air outlet 252, and an air flow can enter the motor 23 from the air inlet 251 and flow out of the motor 23 from the air outlet 252, so that heat inside the motor 23 is rapidly dissipated to achieve a cooling effect of the motor 23, and a gap between the stator 231 and the rotor 232 can be used as the air outlet 252. The motor 23 may be hermetically connected to the air flow passage 130 such that air completely enters the inside of the motor 23 from the air inlet 251 and flows out from the air outlet 252. In other embodiments, the sleeve 26 may be perforated with air to facilitate air flow through the stator 231.

The motor 23 includes an air duct 234 hermetically connected to the outside of the rotor 232, the air duct 234 surrounds the periphery of the rotor 232, the air duct 234 is connected to the outer barrel 21, a first end of the air duct 234 extends to the first end 211 of the outer barrel 21 and is hermetically connected to the outer barrel 21, the fan blades 233 are disposed in the air duct 234, the air duct 234 and the sleeve 26 form the airflow channel 130, the air inlet 251 and the air outlet 252 are oppositely disposed, the air inlet 251 may be disposed on an end surface of the first end of the motor 23, and the air outlet 252 may be disposed on an end surface of the second end of the motor 23.

A control board 27 is mounted in the sleeve 26, the control board 27 being electrically connected to the motor 23 and to the electrical connection points, so that the air flow also cools the control board 27.

As shown in fig. 8 and 9, the outer side of the air duct 234 is provided with two sets of ribs 230, the two sets of ribs 230 are oppositely arranged and spirally extend around the axis of the air duct 234, the inner side of the outer cylinder 21 is correspondingly provided with another two sets of ribs 240, and the two sets of ribs 240 are oppositely arranged and spirally extend around the axis of the outer cylinder 21.

Each set of ribs 230 on the outer side of air duct 234 includes first ribs 202 and second ribs 204, first ribs 202 and second ribs 204 spirally extend around the axis of air duct 234 at intervals, and first ribs 202 and second ribs 204 are inclined radially outward and in opposite directions.

Each set of ribs 240 on the inner side of the outer cylinder 21 includes a third rib 206 and a fourth rib 208, the third rib 206 and the fourth rib 208 spirally extend around the axis of the outer cylinder 21 at intervals, and the third rib 206 and the fourth rib 208 are inclined radially outwards and in opposite directions. The first rib 202 and the third rib 206 are inclined in the same direction, and the second rib 204 and the fourth rib 208 are inclined in the same direction.

Specifically, optionally, first rib 202 and second rib 204 are inclined radially inward in an opposing manner, and third rib 206 and fourth rib 208 are inclined radially outward in an opposing manner.

The air pipe 234 is inserted into the outer barrel 21 from the end of the outer barrel 21 along the third rib 206 and the fourth rib 208 in a spiral manner, the first rib 202 and the second rib 204 are positioned between the third rib 206 and the fourth rib 208, the first rib 202 is matched with the third rib 206, and the second rib 204 is matched with the fourth rib 208 to enable the air pipe 234 and the outer barrel 21 to be clamped and fixed.

Referring back to fig. 2 and 3, a first scraper 310 is provided in the housing 110, the first scraper 310 being disposed in the debris collecting chamber 17, the first scraper 310 extending along the length of the brush bar 120. The first scraper 310 includes a plate body 311, and the plate body 311 is connected to the housing 110 through a connection plate 340. The plate body 311 has a lower edge 3111, and the lower edge 3111 is in an arc shape gradually sinking from the middle to both end portions, that is, the middle of the lower edge is higher, and both end portions are closer to the bottom surface. The plate body 311 is provided with a plurality of scrapers 312 along the lower edge, and a plurality of scrapers 312 are arranged along scraper blade length direction interval, and in the flexible brush layer 22 can be stretched into to the scrapers 312, when the brush stick 120 rotated, will adhere to the debris on the brush stick 120 through the scrapers 312 and scrape off or scrape loose, and lower edge 3111 can gather together debris to centre department and aim at debris export 141, and the debris after gathering together more directly enters into vacuum device from debris export 141.

The scraping claw 312 extends downward and beyond the lower edge 3111, and the scraping claw 312 forms a claw portion at a lower end thereof, and foreign objects attached to the scraping claw 312 are prevented from being blocked by the plate body 311 and can be directly sucked to leave the scraping claw 312 into the foreign object outlet 141.

The plate body 311 extends substantially along the outer surface of the brush bar 120, the plate body 311 has a surface 3112 adjacent to the brush bar 120, the surface 3112 likewise extends substantially along the outer surface of the brush bar 120, the strip convexly formed on the surface 3112 and extending along the circumferential direction forms a scraping claw 312, and the longer scraping claw 312 and the flexible brush layer 22 have increased distance in the circumferential direction to scrape off or loosen the impurities on the brush bar 120 more powerfully.

The second scraper 320 is arranged in the shell 110, and the second plate 320 is arranged in the sundries collecting cavity 17. The second plate 311 is disposed above the first plate 311, and the second scraper 320 extends along the length direction of the brush bar 120, and is used for scraping the flexible brush layer 22 on the brush bar 120 for the second time. The brush bar 120 is rotated counterclockwise as shown in fig. 2, such that the first squeegee blade 310 scrapes the flexible brush layer 22, and then rotated to the position of the second squeegee blade 320, and then the second squeegee blade 320 scrapes the brush.

The second scraper blade 320 is spaced apart from the first scraper blade 310, a sundries passage opening 330 is formed between the second scraper blade 310 and the first scraper blade 320, and sundries scraped off by the second scraper blade 320 enter the sundries collecting cavity 17 from the sundries passage opening 330 and then enter the negative pressure device from the sundries outlet 141. The connection plates 340 to which the first scraper 310 is connected are spaced apart to form the debris passage opening 330.

The second scraper 320 is preferably integrally formed with the housing 110, and the second scraper 320 extends obliquely forward and downward from the housing 110, and has a scraping edge formed at a lower edge thereof, the scraping edge contacting the flexible brush layer 22 with the brush bar 120 in a smooth manner, and the scraping edge being a straight line extending in a longitudinal direction of the brush bar 120, so as to more smoothly scrape off fine garbage scraped loose by the first scraper 310.

Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the present invention.

Claims (8)

1. A cleaning head comprises a shell and a brush rod, wherein the shell defines a cavity, the brush rod is at least partially arranged in the cavity, a first scraping plate is arranged in the shell and extends along the length direction of the brush rod, and the first scraping plate is used for scraping sundries attached to the brush rod down or loose when the brush rod rotates.

2. A cleaning head according to claim 1, wherein the scraping fingers extend downwardly and over the lower edge, the scraping fingers forming fingers at their lower ends.

3. The cleaner head of claim 1, wherein the plate body has a surface adjacent the brush bar that extends substantially along an outer surface of the brush bar, and the squeegees are circumferentially extending strips on the raised surface.

4. A cleaner head according to any of claims 1 to 3, wherein the wiper blade is adapted to extend into the brush bar.

5. The cleaner head according to claim 1, wherein a second scraper is provided in the housing, the second scraper is configured to scrape the brush bar for a second time, the second scraper is located above the first scraper and extends along a length direction of the brush bar, and a foreign material passage opening is formed between the first scraper and the second scraper.

6. The cleaning head of claim 5, wherein the second squeegee blade is configured to scrape the brush bar a second time by a scraping edge formed by the lower edge.

7. The cleaner head of claim 6, wherein the scraping edge is linear extending along a length of the brush bar.

8. A vacuum cleaner, characterised in that it incorporates a cleaner head as claimed in any one of claims 1 to 7.

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