CN113827137B - Rolling brush mechanism and floor sweeping machine - Google Patents
Rolling brush mechanism and floor sweeping machine Download PDFInfo
- Publication number
- CN113827137B CN113827137B CN202010589915.6A CN202010589915A CN113827137B CN 113827137 B CN113827137 B CN 113827137B CN 202010589915 A CN202010589915 A CN 202010589915A CN 113827137 B CN113827137 B CN 113827137B
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- rack structure
- roller
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- rack
- rolling brush
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- 238000005096 rolling process Methods 0.000 title claims abstract description 83
- 230000007246 mechanism Effects 0.000 title claims abstract description 70
- 238000010408 sweeping Methods 0.000 title abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 20
- 241001417527 Pempheridae Species 0.000 claims abstract description 18
- 230000005489 elastic deformation Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 10
- 210000004209 hair Anatomy 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/24—Floor-sweeping machines, motor-driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4041—Roll shaped surface treating tools
Landscapes
- Brushes (AREA)
Abstract
The invention discloses a rolling brush mechanism and a sweeper, wherein the rolling brush mechanism comprises a rolling brush main body, a rack structure, a cam assembly and an elastic piece; the rolling brush main body is provided with a cavity and a gap communicated with the cavity; at least part of the rack structure is arranged in the cavity and is provided with a plurality of saw teeth arranged along a first direction, and the first direction is parallel to the length extension direction of the rolling brush main body; the cam component is arranged in the cavity; when the rack structure moves from the first position to the second position along the first direction, the rack structure can elastically deform the elastic piece under the action of the cam component; the rack structure can move from the second position to the first position under the action of elastic deformation force of the elastic piece so as to cut windings on the rolling brush main body; when the rack structure is positioned at the second position, at least part of the saw teeth are convexly arranged in the gap. Above-mentioned round brush mechanism and machine of sweeping floor need not manual clearance of user and can cut the winding thing of winding on the round brush main part, guarantees the normal work of round brush mechanism.
Description
Technical Field
The invention relates to the technical field of cleaning equipment, in particular to a rolling brush mechanism and a sweeper.
Background
The floor sweeper is generally provided with a rolling brush for cleaning the ground, and when the rolling brush rotates, the rolling brush can collect the ground sundries and suck the ground sundries into a garbage storage box on the floor sweeper, so that the ground is cleaned. However, when the floor sweeping machine cleans the floor, hair on the floor can be wound on the rolling brush, and the problems of clamping the rolling brush and the like are easy to occur. This increases the motor load and affects the motor life, or the cleaning effect. When there is a lot of hair on the roller brush, it is often necessary for a person to perform the treatment manually.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a rolling brush mechanism and a sweeper.
According to a first aspect of the present invention, there is provided a roller brush mechanism for a sweeper, the roller brush mechanism comprising:
The rolling brush main body is provided with a cavity and a gap communicated with the cavity;
the rack structure is at least partially arranged in the cavity and is provided with a plurality of saw teeth arranged along a first direction, and the first direction is parallel to the length extension direction of the rolling brush main body;
The cam component is arranged in the cavity and can be in transmission connection with the rack structure;
the two ends of the elastic piece are respectively abutted against the rolling brush main body and the rack structure;
When the rack structure moves from a first position to a second position along the first direction, the rack structure can elastically deform the elastic piece under the action of the cam component; the rack structure can move from the second position to the first position under the action of elastic deformation force of the elastic piece so as to cut windings on the rolling brush main body; when the rack structure is positioned at the second position, at least part of the saw teeth are convexly arranged in the gap.
In the rolling brush mechanism, the rolling brush mechanism further comprises a rolling brush central shaft, and the rolling brush main body comprises a rod body sleeved on the rolling brush central shaft.
In the roller brush mechanism of the present invention, the cam assembly includes: the cam is arranged on the central shaft of the rolling brush; the roller can be in transmission connection with the cam, and the roller is arranged on the rack structure.
In the rolling brush mechanism, when the rod body rotates around the central shaft of the rolling brush, the rack structure and the roller wheel rotate along with the rod body.
In the rolling brush mechanism, when the roller rotates within a first preset angle range, the roller is matched with the cam to drive the rack structure to move from the first position to the second position, and the rack structure can enable the elastic piece to elastically deform under the action of the cam component.
In the rolling brush mechanism, when the roller rotates within a second preset angle range, the rack structure can move from the second position to the first position under the action of elastic deformation force of the elastic piece, and the roller is separated from the cam.
In the roll brush mechanism of the present invention, the rack structure includes: the cam component is arranged on the rack fixing piece; the saw rack is arranged on the rack fixing piece; the saw teeth are arranged on the saw rack.
In the rolling brush mechanism, the rack fixing piece is provided with the positioning groove, the rolling brush main body is provided with the positioning column matched with the positioning groove, and the size of the positioning groove along the first direction is larger than that of the positioning column along the first direction.
In the rolling brush mechanism, the rolling brush main body comprises a rod body, and the cavity and the gap are arranged on the rod body; the rod body is provided with a first free end and a second free end, and the first free end and the second free end are arranged at intervals along the circumferential direction so as to form the gap; the first free end is provided with a plurality of first tooth parts arranged along a first direction, the second free end is provided with a plurality of second tooth parts arranged along the first direction, and the first tooth parts and the second tooth parts are spaced and oppositely arranged.
According to a second aspect of the present invention, there is provided a floor sweeper comprising a roller brush driving mechanism and any of the roller brush mechanisms described above; the rolling brush mechanism is connected with the rolling brush driving mechanism and is used for driving the rolling brush mechanism to rotate.
Compared with the prior art, the embodiment of the invention has the beneficial effects that: the rack structure can move between the first position and the second position through the cam component and the elastic piece, so that windings such as lines, hairs and the like which are wound or piled on the rolling brush main body are cut off, winding of the windings is reduced or prevented, the windings are piled on the rolling brush main body, the rolling brush main body is easy to clamp, manual cleaning of a user is not needed, and normal work of the rolling brush mechanism is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a sweeper according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a rolling brush mechanism according to an embodiment of the present invention;
FIG. 3 is an exploded view of a roller brush mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of a part of a rolling brush mechanism according to an embodiment of the present invention, in which a roller is tangent to a cam;
FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at A;
FIG. 6 is an enlarged partial schematic view of FIG. 4 at B;
FIG. 7 is a schematic view of a part of a rolling brush mechanism according to an embodiment of the present invention, wherein a roller is separated from a cam;
FIG. 8 is a schematic view of a part of a rolling brush mechanism according to an embodiment of the present invention, wherein the brush body and the outer sleeve part are not shown;
FIG. 9 is a schematic view of a part of a rolling brush mechanism at another angle according to an embodiment of the present invention, wherein the brush body and the outer sleeve portion are not shown;
FIG. 10 is a schematic view of a cam according to an embodiment of the present invention;
fig. 11 is a schematic structural view of a rack structure according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a rack fixing member according to an embodiment of the present invention.
In the figure: 1000. a sweeper;
10. a rolling brush mechanism;
100. A rolling brush main body; 110. a cavity; 120. a slit; 130. a rod body; 131. a jacket portion; 132. an inner sleeve portion; 1321. a first sub-section; 1322. a second sub-section; 140. a brush body; 150. a first tooth portion; 160. a second tooth portion; 170. positioning columns;
200. A rack structure; 210. saw teeth; 220. a rack fixing member; 221. a positioning groove; 222. a avoidance part; 223. an abutting portion; 230. a saw rack;
300. A cam assembly; 310. a cam; 311. a cam section; 312. a screw portion; 320. a roller; 330. a roller shaft;
400. An elastic member; 500. a central shaft of the rolling brush; 610. a first bearing; 620. a second bearing;
20. A housing; 201. an opening.
Detailed Description
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, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Referring to fig. 1, an embodiment of the present invention provides a sweeper 1000, wherein the sweeper 1000 includes a rolling brush mechanism 10 and a rolling brush driving mechanism (not shown). The rolling brush driving mechanism is connected with the rolling brush mechanism 10 and is used for driving the rolling brush mechanism 10 to rotate.
The roller brush drive mechanism may be any suitable drive structure, such as a motor or the like.
Specifically, the sweeper 1000 further includes a housing 20, and the roller brush driving mechanism and the roller brush mechanism 10 are mounted on the housing 20. More specifically, the housing 20 is provided with an opening 201, and the brush body 140 of the rolling brush mechanism 10 can protrude from the opening 201 so as to perform cleaning work on the floor.
Referring to fig. 2 to 9, in some embodiments, the roller brush mechanism 10 includes a roller brush body 100, a rack structure 200, a cam assembly 300, and an elastic member 400. The roll brush body 100 has a cavity 110 and a slit 120 communicating with the cavity 110. The cam assembly 300 and at least a portion of the rack structure 200 are disposed within the cavity 110. The rack structure 200 has a plurality of serrations 210 arranged along a first direction. The first direction is parallel to the length extending direction of the roll brush body 100. The cam assembly 300 is disposed within the cavity 110 and is capable of driving connection with the rack structure 200. Both ends of the elastic member 400 are respectively abutted against the rolling brush body 100 and the rack structure 200.
When the rack structure 200 moves from the first position to the second position in the first direction, the rack structure 200 can elastically deform the elastic member 400 under the action of the cam assembly 300. The rack structure 200 can be moved from the second position to the first position by the elastic deformation force of the elastic member 400 to cut the windings on the roll brush body 100. When the rack structure 200 is in the second position, at least a portion of the saw teeth 210 protrude from the slit 120.
In the rolling brush mechanism 10 in the above embodiment, since the cam assembly 300 and the elastic member 400 can be respectively matched with the transmission of the rack structure 200, the rack structure 200 can move between the first position and the second position along the first direction, so as to cut off the windings such as lines, hairs and the like wound or piled on the rolling brush main body 100, reduce or prevent the windings from being wound or piled on the rolling brush main body 100, and easily seize the rolling brush main body 100, without manual cleaning by a user, and ensure the normal operation or continuous operation of the rolling brush mechanism 10. In addition, since the rack structure 200 can timely cut off the windings wound on the rolling brush main body 100, the phenomenon that the rolling brush driving mechanism (such as a motor) is damaged or the rolling brush driving mechanism (such as a motor) exceeds a load due to the fact that the rolling brush driving mechanism 1000 alarms or is prevented from being blocked by hair when the rolling brush main body 100 runs can be prevented, and therefore the service life of the rolling brush driving mechanism or the rolling brush 1000 is prolonged.
It will be appreciated that when the rack structure 200 is in the second position, at least a portion of the serrations 210 protrude from the slot 120. In this way, on the one hand, it is possible to avoid that the saw teeth 210 are blocked by the roll brush body 100 or the stick body 130 to make it difficult to cut hair normally; on the other hand, at least part of the saw teeth 210 protruding from the slit 120 can also limit the movement of the rack structure 200 in the circumferential direction of the rolling brush body 100 or the bar 130.
It can be appreciated that the first position is an initial position of the rack structure 200 relative to the roll brush body 100, as shown in fig. 7. The second location is different from the first location, and the second location may include a plurality. For example, the first position is one of the extreme positions of the rack structure 200; the second position may be another extreme position of the rack structure 200 with respect to the roll brush body 100, as shown in fig. 4. The second position may also be any suitable position between the first position and the other extreme position.
Referring to fig. 2 and 3, in some embodiments, the roll brush body 100 includes a wand 130 and a brush body 140. The cavity 110 and the slit 120 are provided on the rod 130. The brush body 140 is disposed on the rod body 130. It can be appreciated that when the rack structure 200 is located at the second position, the top ends of the saw teeth 210 are lower than the top ends of the brush body 140, so that the saw teeth 210 do not contact the ground after the brush body 140 is deformed during cleaning, and the rack structure 200 is prevented from scratching the ground.
In some embodiments, brush body 140 is typically made of a plastic material that is easily deformable for ease of cleaning. The bar 130 is made of a rigid material, so that the bar 130 can be easily deformed during rotation, and the brush 140 can be fully contacted with the ground. Illustratively, the brush body 140 may be bristles. The bristles are arranged in a spiral or linear shape on the shaft 130. In other embodiments, the brush body 140 may be a brush sheet, such as a flexible brush sheet of rubber. Of course, the brush body 140 may be a combination of bristles and a brush sheet, which is not limited herein.
In some embodiments, the first direction is parallel to the axial direction of the shaft 130. In other embodiments, the first direction is the X direction in fig. 4.
In some embodiments, the second direction is the Y direction as in fig. 4. In other embodiments, the second direction may be any other suitable direction as long as it is different from the first direction. For example, the second direction may be disposed at an acute angle to the X direction in fig. 4, etc.
Referring to fig. 2-9, in some embodiments, the rod 130 has a first free end and a second free end, and the first free end and the second free end are circumferentially spaced apart to form the gap 120. The first free end is provided with a plurality of first teeth 150 arranged along a first direction, the second free end is provided with a plurality of second teeth 160 arranged along the first direction, and the first teeth 150 are spaced from and oppositely arranged with the second teeth 160.
Illustratively, the serrations 210 are disposed between the first tooth 150 and the second tooth 160. The first and second teeth 150 and 160 remain stationary with respect to the roll brush body 100, i.e., the first and second teeth 150 and 160 do not move arbitrarily in the first direction. In this way, the saw teeth 210 reciprocate in the first direction relative to the first teeth 150 and the second teeth 160, and a scissor structure can be formed between the saw teeth 210 and the first teeth 150, between the saw teeth 210 and the second teeth 160, and between the three, and the scissor structure can cut the wound object. In addition, the first tooth portion 150 and the second tooth portion 160 can also make the winding be tensioned or pulled tightly, so that the winding is more easily cut off by the saw teeth 210 of the rack structure 200, and the efficiency of cleaning the winding is further improved.
The number of the saw teeth 210, the first tooth portion 150 and the second tooth portion 160 of the rack structure 200 can be set according to practical requirements, and the larger the number of the saw teeth 210, the first tooth portion 150 and the second tooth portion 160 is, the more facilitating to cut the winding material rapidly.
In some embodiments, the rod 130 may also be formed by assembling at least two structures separately. In other embodiments, the rod 130 may be a unitary structure that forms the slit 120 for allowing the serrations 210 of the rack structure 200 to be exposed from the cavity 110, which is not limited herein.
Referring to fig. 3-9, in some embodiments, the rod 130 includes an outer sleeve portion 131 and an inner sleeve portion 132. The outer sleeve portion 131 is fixedly sleeved outside the inner sleeve portion 132. Thus, the outer sleeve portion 131 and the inner sleeve portion 132 can be made of different materials to meet the respective functional requirements. For example, the inner sleeve portion 132 is made of a rigid material, such as a metal material or a plastic material which is not easily deformed; the outer sheath 131 may be formed of a material that is easily deformable, such as nylon material, together with the brush body 140, so as to facilitate the manufacture of the brush body 140.
It will be appreciated that in some embodiments, the outer sleeve portion 131 and the inner sleeve portion 132 may each comprise two separate portions that are mounted opposite and spaced apart to form the gap 120 described above. Illustratively, the inner sleeve portion 132 includes a first sub-portion 1321 and a second sub-portion 1322. The first sub-portion 1321 may be coupled to the second sub-portion 1322 by a snap fit connection, a screw lock connection, or the like. The first and second sub-portions 1321 and 1322 form a gap that cooperates with a slot (not shown) of the outer sleeve portion 131 to form the slit 120. In other embodiments, the inner sleeve portion 132 may be integrally formed with a gap. The outer sleeve portion 131 may be integrally formed and have a slit, and the slit of the outer sleeve portion 131 corresponds to the slit of the inner sleeve portion 132 to form the slit 120, which is not limited herein.
The outer sleeve portion 131 may be fixedly connected to the inner sleeve portion 132 by any suitable fixing means, such as adhesive bonding or thermal compression.
Illustratively, the outer sleeve portion 131 and the inner sleeve portion 132 each extend in a first direction.
In some embodiments, when the rack structure 200 is located at the first position, at least a portion of the saw teeth 210 protrudes from the gap 120, and the first tooth portion 150 and/or the second tooth portion 160 can circumferentially shield the saw teeth 210, so as to avoid the problem that the saw teeth 210 are exposed to the roller brush main body 100 and injure a child or a user when the sweeper 1000 is not in use, and improve the safety of the sweeper 1000.
In some embodiments, when the rack structure 200 is located at the second position, at least part of the saw teeth 210 protrudes from the gap 120, and the saw teeth 210 are offset from the first tooth portion 150, so that at least one of the saw teeth 210, the first tooth portion 150, and the second tooth portion 160 can cut the winding when the rolling brush mechanism 10 works.
In some embodiments, the cam assembly 300 and the resilient member 400 are capable of reciprocating the rack structure 200 in a first direction between a first position and a second position. Illustratively, the rack gear 200 can continuously reciprocate in a straight line in the first direction by the cam assembly 300 and the elastic member 400, and thus, a wire, hair, etc. wound around the roll brush body 100 can be cut.
In some embodiments, the resilient member 400 is a compression spring. The rack structure 200 is capable of compressing the compression spring under the action of the cam assembly 300 during movement of the rack structure 200 from the first position to the second position, thereby elastically deforming the compression spring. When the rack structure 200 moves to the second position, the cam assembly 300 is not in driving connection with the rack structure 200, and thus the rack structure 200 does not further compress the compression spring, and the rack structure 200 returns to the first position from the second position under the elastic deformation force of the compression spring.
In some embodiments, the resilient member 400 is an extension spring. The rack structure 200 is capable of stretching the extension spring under the action of the cam assembly 300 during movement of the rack structure 200 from the first position to the second position, thereby elastically deforming the extension spring. When the rack structure 200 moves to the second position, the cam assembly 300 is not in driving connection with the rack structure 200, and thus the rack structure 200 does not further stretch the tension spring, and the rack structure 200 returns to the first position from the second position under the elastic deformation force of the tension spring.
Illustratively, when the rack structure 200 is in the first position, the distance between the upper end surface of the saw tooth 210 and the roller brush central shaft 500 is h1, and the distance between the left end surface of the rack mount 220 and the left end surface of the first sub-portion 1321 in fig. 7 is d1. When the rack structure 200 is located at the second position, a distance between the upper end surface of the saw tooth 210 and the upper end surface of the roller brush central shaft 500 is h2, and a distance between the left end surface of the rack mount 220 and the left end surface of the first sub portion 1321 in fig. 4 is d2. Wherein h2 is substantially the same as h1 and d2 is greater than d1.
In some embodiments, the roll brush mechanism 10 further includes a roll brush center shaft 500. The rod 130 is sleeved on the rolling brush central shaft 500. Specifically, the rod 130 is sleeved outside the roller brush central shaft 500. Illustratively, the rolling brush mechanism 10 further includes a first bearing 610 and a second bearing 620. The inner sleeve portion 132 of the wand 130 is drivingly connected to the roller brush central shaft 500 by a first bearing 610 and a second bearing 620. In some embodiments, the first bearing 610 and the second bearing 620 are disposed at both ends of the roller brush center shaft 500, respectively.
In some embodiments, the first bearing 610 and the second bearing 620 are sliding bearings. The roll brush central shaft 500 remains stationary as the wand 130 rotates. When the outer rings of the first and second bearings 610 and 620 rotate, the inner rings of the first and second bearings 610 and 620 do not rotate.
Referring to fig. 3 to 7, and 10, the cam assembly 300 includes a cam 310 and a roller 320. The cam 310 is provided on the roller brush central shaft 500. The roller 320 can be in driving connection with the cam 310. The roller 320 is disposed on the rack structure 200.
In some embodiments, the rack structure 200 and the roller 320 follow the rotation of the wand 130 as the wand 130 rotates about the roller brush central axis 500. Specifically, when the rod 130 rotates around the axial direction of the rod 130 or the central axis 500 of the roller brush, the rack structure 200 provided on the rod 130 also rotates along with the rod 130, and thus the cam 310 provided on the rack structure 200 also rotates along with the rod 130.
In some embodiments, when the roller 320 rotates within the first predetermined angle range, the roller 320 cooperates with the cam 310 to drive the rack structure 200 to move from the first position to the second position, and the rack structure 200 can elastically deform the elastic member 400 under the action of the cam assembly 300.
For example, when the roller 320 rotates around the axial direction of the rod 130 or the rolling brush central axis 500 by a first preset angle range, the cam 310 is in driving connection with the roller 320, the roller 320 can drive the rack structure 200 to move from the first position to the second position along the first direction under the action of the cam 310, and the rack structure 200 can apply a force to the elastic member 400 to elastically deform the elastic member 400.
In some embodiments, when the roller 320 rotates around the axial direction of the rod 130 or the central axis 500 of the roller brush within the second preset angle range, the roller 320 is separated from the cam 310, and the rack structure 200 can move from the second position to the first position under the elastic deformation force of the elastic member 400.
Illustratively, when the cam 310 is drivingly connected to the roller 320, the cam 310 is tangential to the roller 320. When the cam 310 is disengaged from the roller 320, the cam 310 is not in contact with the roller 320.
It will be appreciated that the first preset angle range and the second preset angle range may be designed according to actual requirements, and are not limited herein. For example, the first predetermined angle range is 0 ° -90 °, i.e., the cam 310 rotates from 0 ° to 90 ° in a predetermined rotation direction about the axial direction of the shaft 130 or the roll brush center axis 500. The second preset angle range is 90 deg. -180 deg., i.e., the cam 310 rotates from 90 deg. to 180 deg. about the axial direction of the shaft 130 or the roll brush central axis 500 in the preset rotational direction.
In some embodiments, the axial direction of the roller 320 is parallel to the second direction. The second direction is different from the first direction.
In some embodiments, the axial direction of the cam 310 is parallel to the second direction.
Illustratively, the second direction is a direction perpendicular to the first direction.
Illustratively, the second direction is the Y direction in fig. 4.
Referring to fig. 10, in some embodiments, the cam 310 includes a cam portion 311 and a screw portion 312 connected to the cam portion 311. Screw holes are provided on the roller brush central shaft 500. The screw hole is screw-engaged with the screw portion 312, thereby fixing the cam 310 to the roll brush center shaft 500. The cam portion 311 can be in driving engagement with the roller 320. Illustratively, the cam portion 311 has a larger profile than the screw portion 312.
In some embodiments, the number of cam assemblies 300 may be designed according to practical needs, such as one, two, three or more, without limitation. Illustratively, the number of cam assemblies 300 is plural, and the plural cam assemblies 300 are arranged at intervals along the axial direction of the roll brush center shaft 500.
Referring to fig. 3-7, and 11, in some embodiments, the rack structure 200 includes a rack mount 220 and a saw tooth bar 230. At least a portion of cam assembly 300 is disposed on rack mount 220. The saw rack 230 is provided on the rack mount 220. The saw teeth 210 are provided on the saw rack 230.
Illustratively, the roller 320 is disposed on the rack mount 220.
In some embodiments, the saw rack 230 and the rack mount 220 may be injection molded or may be fixedly attached by a snap fit, screw connection, or the like. Illustratively, the saw tooth bar 230 is made of a metal material, the rack mount 220 is made of a plastic material, and the two are connected by injection molding to reduce the cost of the roller brush mechanism 10.
In some embodiments, cam assembly 300 further includes a roller shaft 330, roller shaft 330 being coupled to rack mount 220. The roller 320 is sleeved outside the roller shaft 330. It will be appreciated that the roller shaft 330 may be secured to the rack mount 220 by a screw connection, an interference fit connection, an adhesive connection, a plug-in fit, or the like.
In some embodiments, the axis of the roller shaft 330 is parallel to the second direction. In other embodiments, the axis of the roller brush shaft is parallel to the axis of the wand 130.
In some embodiments, the roller brush mechanism 10 cleans the floor in a rotating fashion when the sweeper 1000 is in operation. In some embodiments, the roll brush body 100 and the rack structure 200 of the roll brush mechanism 10 collectively rotate about the axial direction of the roll brush body 100. Illustratively, the rack structure 200 is positioned on the wand 130 by way of the locating slots 221 and the locating posts 170, and the rack structure 200 and the roller brush body 100 are capable of rotating synchronously with respect to the axial direction of the wand 130 while achieving both a rotational sweeping function and a wrap severing function.
Referring to fig. 3 to 7, and fig. 11 and 12, in some embodiments, the rack fixing member 220 is provided with a positioning slot 221, and the rolling brush main body 100 is provided with a positioning post 170 matching with the positioning slot 221, where a dimension of the positioning slot 221 along the first direction is greater than a dimension of the positioning post 170 along the first direction. Thus, the positioning groove 221 and the positioning post 170 can position the rack fixing member 220 in the inner sleeve 132. Further, since the size of the positioning groove 221 in the first direction is greater than the size of the positioning post 170 in the first direction, the positioning post 170 can move in the length direction of the positioning groove 221, i.e., in the first direction, so that the rack structure 200 moves in the first direction between the first position and the first position to provide a movement space.
In other embodiments, the positioning post 170 may be disposed on the rack fixing member 220, and the positioning groove 221 matched with the positioning post 170 may be disposed on the rolling brush main body 100, so that the rack structure 200 is positioned on the rod body 130 by means of the positioning groove 221 and the positioning post 170.
Referring to fig. 11 and 12, in some embodiments, a avoidance portion 222 is further provided on the rack fixing member 220 for avoiding the cam 310 and/or the roller 320. Illustratively, the avoidance portion 222 is a groove structure or a notch structure.
In some embodiments, an abutment 223 is provided at one end of the rack mount 220 for abutting against one end of the elastic member 400.
Illustratively, the rack fixing member 220 cooperates with the inner sleeve portion 132 to form a limiting hole through which the elastic member 400 passes to abut against the abutment portion 223. The limiting hole can limit the movement of the elastic member 400 in the radial direction of the limiting hole.
In some embodiments, the resilient member 400 is in a natural state when the rack structure 200 is in the first position.
As can be appreciated, under the combined action of the cam assembly 300 and the elastic member 400, the rack fixing member 220 can drive the saw rack 230 to move between the first position and the second position along the first direction, so as to cut off the windings such as lines, hairs and the like wound or piled on the rolling brush main body 100, reduce or prevent the windings from being wound or piled on the rolling brush main body 100 and easily blocking the rolling brush main body 100, eliminate the need of manual cleaning by a user, ensure the normal operation of the rolling brush mechanism 10, and prolong the service life of the rolling brush driving mechanism of the sweeper 1000.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The above disclosure provides many different embodiments, or examples, for implementing different structures of the invention. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (9)
1. A roll brush mechanism for a sweeper, the roll brush mechanism comprising:
the rolling brush main body is provided with a cavity and a gap communicated with the cavity, and comprises a rod body, wherein the rod body is provided with a first tooth part and a second tooth part which are arranged at intervals;
the rack structure is at least partially arranged in the cavity and is provided with a plurality of saw teeth arranged along a first direction, and the saw teeth are arranged between the first tooth part and the second tooth part; the first direction is parallel to the length extension direction of the rolling brush main body;
The cam component is arranged in the cavity and can be in transmission connection with the rack structure; the cam assembly comprises a cam, a roller and a roller shaft, the cam is arranged on a roller brush central shaft of the roller brush mechanism, the roller can be in transmission connection with the cam, the roller is arranged on the rack structure, the roller shaft is connected with a rack fixing piece of the rack structure, and the roller is sleeved outside the roller shaft;
the two ends of the elastic piece are respectively abutted against the rolling brush main body and the rack structure;
When the rack structure moves from a first position to a second position along the first direction, the rack structure can elastically deform the elastic piece under the action of the cam component; the rack structure can move from the second position to the first position under the action of elastic deformation force of the elastic piece so as to cut windings on the rolling brush main body; when the rack structure is positioned at the second position, at least part of the saw teeth are convexly arranged in the gap.
2. The roll brush mechanism of claim 1, wherein the roll brush body comprises a rod body sleeved on the roll brush central shaft.
3. The roll brush mechanism according to claim 2, wherein the rack structure and the roller follow the rotation of the bar when the bar rotates about the roll brush center axis, the axial direction of the roller being parallel to a second direction, the second direction being different from the first direction.
4. The roll brush mechanism of claim 2, wherein when the roller rotates within a first predetermined angular range, the roller cooperates with the cam to move the rack structure from the first position to the second position, the rack structure being capable of elastically deforming the resilient member under the action of the cam assembly.
5. The roll brush mechanism according to claim 3, wherein the rack structure is movable from the second position to the first position under the elastic deformation force of the elastic member when the roller rotates within a second predetermined angular range, the roller being disengaged from the cam.
6. The roll brush mechanism of claim 1, wherein the rack structure comprises:
the cam component is arranged on the rack fixing piece;
The saw rack is arranged on the rack fixing piece; the saw teeth are arranged on the saw rack.
7. The roll brush mechanism according to claim 6, wherein the rack fixing member is provided with a positioning groove, the roll brush main body is provided with a positioning column matched with the positioning groove, and the size of the positioning groove along the first direction is larger than that of the positioning column along the first direction.
8. The roll brush mechanism of claim 1, wherein the cavity and the gap are provided on the wand; the rod body is provided with a first free end and a second free end, and the first free end and the second free end are arranged at intervals along the circumferential direction so as to form the gap; the first free end is provided with a plurality of first tooth parts arranged along a first direction, the second free end is provided with a plurality of second tooth parts arranged along the first direction, and the first tooth parts and the second tooth parts are spaced and oppositely arranged.
9. A sweeper, comprising:
a roller brush driving mechanism; and
The roll brush mechanism of any one of claims 1-8, coupled to the roll brush drive mechanism, for driving the roll brush mechanism in rotation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589915.6A CN113827137B (en) | 2020-06-24 | 2020-06-24 | Rolling brush mechanism and floor sweeping machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010589915.6A CN113827137B (en) | 2020-06-24 | 2020-06-24 | Rolling brush mechanism and floor sweeping machine |
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| CN113827137A CN113827137A (en) | 2021-12-24 |
| CN113827137B true CN113827137B (en) | 2024-05-24 |
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| CN212591926U (en) * | 2020-06-24 | 2021-02-26 | 云米互联科技(广东)有限公司 | Rolling brush mechanism and sweeper |
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| CN105982615A (en) * | 2016-04-29 | 2016-10-05 | 宁波富佳实业有限公司 | Rolling brush assembly |
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| CN113827137A (en) | 2021-12-24 |
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