WO2019237988A1

WO2019237988A1 - Sweeper and rolling hair-cutting apparatus thereof

Info

Publication number: WO2019237988A1
Application number: PCT/CN2019/090249
Authority: WO
Inventors: 赵冰
Original assignee: 安克创新科技股份有限公司
Priority date: 2018-06-13
Filing date: 2019-06-06
Publication date: 2019-12-19
Also published as: CN209252729U

Abstract

A sweeper (10) and a rolling hair-cutting apparatus (20) thereof. The rolling hair-cutting apparatus (20) comprises: a cutter blade set (22), a base frame (23), a stepping motor (24), an eccentric motor (25), and a slide block (26); the cutter blade set (22) comprises: at least one cutter blade, wherein the cutter blade is provided thereon with an eccentric hole (224); and the base frame (23) is provided thereon with: a first accommodating groove (231) used to accommodate the stepping motor (24), and a second accommodating groove (234) used to accommodate the eccentric motor (25), the second accommodating groove (234) being provided thereon with a through hole (2341). The slide block (26) is fixed to a surface of the cutter blade set (22) that faces the stepping motor (24) and corresponds to the position of the stepping motor (24); the slide block (26) may be slidingly fixed on a driving rod (241) of the stepping motor; the cutter blade set (22) is mounted on a surface of the base frame (23); and a driving rod (251) of the eccentric motor (25) penetrates from the through hole (2341) of the second accommodating groove (234) and extends into the eccentric hole (224) of the cutter blade set (22). The present invention may automatically shear rolled-up wound fur without requiring manual cleaning by a user, use thereof being more convenient.

Description

Floor sweeper and its rolling brush cutting device

[Technical Field]

The present application relates to a sweeper, and in particular, to a sweeper and a rolling brush cutting device thereof.

【Background technique】

Currently, sweeping robots have been widely used in homes. Generally, the sweeping robot adopts a circular body, and a square opening is provided on the bottom surface of the circular body. The square opening is connected with a suction air duct, and a horizontally rotating hair roller is provided on the square opening. A horizontally rotating hair roller brush provides better cleaning results.

However, after being used for a period of time, the hair roller brush may entangle hair or animal hair, preventing the hair roller brush from rotating, or even being unable to rotate. Therefore, manual cleaning is required, which causes inconvenience to use.

[Summary of the Invention]

The technical problem to be solved in the present application is to provide a sweeper capable of automatically cleaning the hair wound on the roller brush of the sweeper and a roller brush cutting device thereof.

To solve the above technical problems, this application provides the following technical solutions:

In one aspect, a roller brush hair cutting group device is provided, including: a base frame, at least one blade, and a driving component. At least one blade is movably disposed on the base frame, and at least one blade has a knife edge. The driving component is arranged on the base frame, and is used for driving at least one blade to move in the vertical direction of the extension of the knife edge, and for driving at least one blade to reciprocate along the extension of the knife edge.

In another aspect, a roller brush hair cutting device is provided, which includes: a blade set, a base frame, a stepper motor, an eccentric motor, and a slider; the blade set includes: at least one blade; an eccentric hole is provided on the blade; Provided are: a first receiving slot for receiving a stepper motor; a second receiving slot for receiving an eccentric motor; the second receiving slot is provided with a through hole; the stepping motor is fixed to the first receiving slot In the slot; the slider is fixed on the side of the blade group facing the stepper motor and corresponds to the position of the stepper motor; the slider is slidably fixed on the drive rod of the stepper motor; the blade is assembled on the surface of the base frame; the eccentric motor The driving rod of the eccentric motor is fixed to the second accommodating slot, penetrates the through hole of the second accommodating slot, and extends into the eccentric hole of the blade group.

On the other hand, a sweeper is provided. The bottom of the sweeper is provided with an air vent communicating with the air duct, and a roller brush is fixed at the air vent, and further includes: any one of the roller brushes fixed above the air vent. Device; the bristles of the roller brush can be rotated to a position corresponding to the blade edge of the blade set of the roller brush cutting device, and contact the blade edge.

The beneficial effect of the present application is that the blade set of the roller brush cutting device is driven by a stepping motor and an eccentric motor to cut off the hair entangled on the roller brush without the user manually cleaning the hair on the roller brush, thereby sweeping the floor. The roller brush of the machine does not roll poorly due to tangled hair, which will affect the cleaning effect, and also makes it more convenient for users.

[Brief Description of the Drawings]

FIG. 1 is a bottom view of a specific embodiment of a sweeper of the present application.

FIG. 2 is an enlarged schematic view of a roller brush hair cutting device and a roller brush according to a specific embodiment of a sweeper of the present application.

FIG. 3 is an exploded perspective view of a specific embodiment of a roller brush hair cutting device according to the present application.

FIG. 4 is a schematic exploded perspective view of another embodiment of a roller brush hair cutting device according to the present application in an exploded perspective.

FIG. 5 is a bottom view of the blade when the blade of FIG. 4 is retracted.

6 is a bottom view of the blade when the blade of FIG. 4 is extended.

FIG. 7 is a schematic perspective view of FIG. 6 cut along line A-A (the cover is not shown).

Fig. 8 is a sectional view taken along line B-B in Fig. 6.

FIG. 9 is an enlarged schematic view of a portion C in FIG. 8.

【detailed description】

In order to make the purpose, technical solution, and advantages of the present application clearer, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure of this application.

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 application belongs. The terminology used herein in the specification of the present application is only for the purpose of describing specific embodiments, and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1, a bottom view of a specific embodiment of a sweeper of the present application. The bottom of the sweeper 10 is provided with a vent 12 communicating with the air duct, and a roller brush 14 and a roller brush hair cutting device 20 are fixed at the vent 12. The roller brush hair cutting device 20 includes a blade having a knife edge 222. The knife edge 222 is the side provided with serrations on the blade.

Please continue to refer to FIG. 2, the bristles 141 of the roller brush 14 can be rotated to a position corresponding to the knife edge 222 and contact the knife edge 222.

Please refer to FIG. 3 and FIG. 4, which are three-dimensional exploded schematic diagrams of a specific embodiment of a rolling brush hair cutting device of the present application. The roller brush hair cutting device 20 includes a blade set 22, a base frame 23, a stepping motor 24, an eccentric motor 25, and a slider 26. The optimization may further include a cover plate 21. The blade edge 222 is the side where the blades in the blade group 22 have serrations.

The blade set 22 includes at least one blade. The blade is provided with an eccentric hole 224. Optimized, the blade may further include at least one limiting hole 221, and the limiting hole 221 is provided with an avoiding position in the cutting edge direction of the blade group 22. Optimized, the blade set 22 includes at least two

blades

22a and 22b that are placed on top of each other. The

blades

22a and 22b are further provided with a zigzag-shaped knife edge 222.

The base frame 23 is provided with a first receiving slot 231 for receiving the stepping motor 24 and a second receiving slot 234 for receiving the eccentric motor 25. A through hole 2341 is defined in the second receiving slot 234. The optimization may further include a limiting post 233 corresponding to the limiting hole 221 of the blade group 22, and the avoidance position of the limiting hole 221 allows the limiting group 233 to There is room for movement in the limit hole.

Please refer to FIG. 5 to FIG. 7 together. During assembly, the stepping motor 24 is fixed in the first receiving slot 231. The slider 26 is fixed to the side of the blade group 22 facing the stepping motor 24 and corresponds to the position of the stepping motor 24. The eccentric motor 25 is fixed to the second accommodating slot 234, and the driving rod 251 of the eccentric motor 25 passes through the through hole 2341 of the second accommodating slot 234. The slider 26, the stepping motor 24, and the specific fixing manner of the stepping motor 24 can be implemented by those skilled in the art according to the existing technology, and there are various existing fixing manners, such as screws, rivets, or snap devices And so on, so it will not be repeated in this application.

The slider 26 is slidably fixed on the driving rod of the stepping motor 24. Specifically, a screw hole 261 may be formed in the slider 26 to form a nut, and the outer surface of the driving rod 241 is provided with a thread. Then, the thread of the driving 241 is matched with the screw hole 261 in the slider 26. When the driving rod 241 rotates, the slider 26 can be driven to move along the axial direction of the driving rod 241 of the stepping motor 24. Those skilled in the art can also find more specific implementation manners in the prior art for this specific fixing manner, and details are not described herein.

The blade set 22 is mounted on the surface of the base frame 23. The driving rod 251 of the eccentric motor 25 penetrates through the through hole 2341 of the second receiving slot 234 and extends into the eccentric hole 224 of the blade set 22.

Optimized, the limiting post 233 of the base frame 23 passes through the limiting hole 221 of the blade group 22. The cooperation of the limiting hole 221 and the limiting post 233 can ensure that the expansion range of the blade group 22 driven by the stepping motor 24 is maintained within a preset or reasonable range.

Optimally, the cover plate 21 is fixed to the base frame 23 and is disposed on the outer surface of the blade set 22 (not shown in FIG. 7). The cover plate 21 can play a role of preventing the blade set 22 from being turned upside down, and can also play a role of dust prevention.

Please continue to refer to FIG. 8 and FIG. 9. During operation, the blade set 22 is driven by the stepping motor 24 to perform a telescopic movement in a direction perpendicular to the knife edge 222; and driven by the eccentric motor 25 along the parallel to the knife edge 222. Reciprocate in the direction. Specifically, as shown in FIG. 5 and FIG. 6, the stepping motor 24 pushes the blade group 22 in a direction perpendicular to the knife edge, that is, the x direction, and the limit post 233 slides in the limit hole 221 until it reaches the limit hole. One end of 221. At this time, the blade group 22 is in an extended state as shown in FIG. 6. After the eccentric motor 25 starts to work, the blade set 22 is driven by the eccentric motor 25 to reciprocate in the direction of the knife edge 222, that is, the y direction, so as to cut off the fibrous substances such as hair on the knife edge 222.

Optimized, when the blade set 22 includes two

blades

22a, 22b with a sawtooth blade edge, the

blades

22a, 22b are reciprocated in the direction of the blade edge 222 by the eccentric motor 25, and move in a staggered manner. The zigzag blade edges 222 of 22b form a scissors shape with each other. When hairs are wound around the bristles 141 of the roller brush 12, the hair protruding into the blade edges 222 is cut.

When the operation is stopped, the stepping motor 24 retracts the blade group 22, and the limiting post 233 slides in the limiting hole 221 until it reaches the other end of the limiting hole 221. At this time, as shown in FIG. 5, the blade group 22 is in a retracted state, that is, when the roller brush cutting device 20 is not used, the cutting edge of the blade group 22 is hidden.

Therefore, in the specific embodiment of using the new sweeper, the roller brush cutting device 20 can cut the hair wound on the roller brush 12 by itself, without the user manually cleaning the hair on the roller brush, so that the roller brush of the sweeper It will not affect the cleaning effect because the hair is tangled, and it will also be more convenient for users.

The above specific embodiments illustrate but do not limit the present application, and those skilled in the art can design multiple alternative examples within the scope of the claims. Those skilled in the art should be aware that appropriate adjustments, modifications, etc. can be made to specific implementation schemes without departing from the scope of the present application as defined by the appended claims. Therefore, any modifications and changes made in accordance with the spirit and principles of the present application are within the scope of the present application as defined by the appended claims.

Claims

A roller brush hair cutting group device, comprising:

Base frame

At least one blade, the at least one blade is movably disposed on the base frame, and the at least one blade has a knife edge;

A driving component provided on the base frame for driving the at least one blade to move in a vertical direction in which the blade edge extends, and for driving the at least one blade to extend along the blade edge Direction to reciprocate.
The roller brush hair cutting device according to claim 1, wherein:

The driving assembly includes a stepper motor and an eccentric motor, wherein the stepper motor is disposed on the base frame and is connected to the at least one blade for driving the at least one blade in a vertical direction along an extension direction of the knife edge. To move, the eccentric motor is disposed on the base frame and is connected to the at least one blade, and the connection position of the eccentric motor and the at least one blade is set away from the rotation axis of the eccentric motor for driving the at least A blade reciprocates in the direction of extension of the knife edge.
The roller brush hair cutting device according to claim 2, wherein:

The at least one blade is provided with an eccentric hole, and a driving rod of the eccentric motor is penetrated through the eccentric hole, so that the eccentric motor can drive the at least one blade to perform eccentric motion.
The roller brush hair cutting device according to claim 3, wherein:

The number of the at least one blade is at least two, and the axes of the eccentric holes of the at least two blades do not coincide, so that at least two of the eccentric holes of the blade and the rotation axis of the driving rod of the eccentric motor The distance is different.
The roller brush hair cutting device according to claim 3, wherein:

The roller brush hair cutting device further has a slider, the slider is fixed to the at least one blade and is disposed corresponding to the stepping motor, and the slider is movably connected with a driving rod of the stepping motor.
The roller brush hair cutting device according to claim 5, wherein:

The slider is provided with a screw hole, and the outer surface of the drive rod of the stepper motor is provided with a thread; the thread of the drive rod of the stepper motor is matched with the screw hole of the slider so that the drive rod of the stepper motor The at least one blade is driven toward or away from the stepping motor in a vertical direction of an extension direction of the knife edge.
The roller brush hair cutting device according to claim 6, wherein:

The at least one blade is movably disposed on one side of the base frame, and one side of the base frame is protrudingly provided with a limiting post. The at least one blade further defines a limiting hole, and the limiting hole is located at the position. The knife edge extends in a direction perpendicular to the extension direction, the limit post is penetrated in the limit hole, and the limit post can move relative to the limit hole in the limit hole, To limit the at least one blade.
The roller brush hair cutting device according to claim 7, characterized in that:

The limiting hole is provided with an avoidance position in an extending direction of the knife edge, so that the eccentric motor can drive the at least one blade to perform eccentric motion.
The roller brush hair cutting device according to claim 3, wherein:

The knife edge is provided in a zigzag shape, and the sawtooth arrangement direction of the knife edge is the same as the extension direction of the knife edge.
The roller brush hair cutting device according to claim 1, wherein:

The base frame is provided with a first accommodating slot and a second accommodating slot. The first accommodating slot is used for accommodating the stepping motor, and the second accommodating slot is used for accommodating the eccentric motor. A rotation axis of the stepping motor in the first accommodation slot is perpendicular to a rotation axis of the eccentric motor in the second accommodation slot.
The roller brush hair cutting device according to claim 1, wherein:

The roller brush hair cutting device further includes a cover plate, which is fixed to the base frame and is disposed on a side of the at least one blade opposite to the base frame.
A roller brush hair cutting device, characterized in that the roller brush hair cutting device includes: a blade set, a base frame, a stepper motor, an eccentric motor, and a slider;

The blade set includes: at least one blade; the blade is provided with an eccentric hole;

The base frame is provided with a first receiving slot for receiving the stepping motor, and a second receiving slot for receiving the eccentric motor. The second receiving slot is provided with a passage. hole;

The stepping motor is fixed in the first receiving slot;

The slider is fixed on the side of the blade group facing the stepping motor and corresponds to the position of the stepping motor; the slider is slidably fixed on the driving rod of the stepping motor;

The blade is assembled on the base frame;

The eccentric motor is fixed to the second accommodating slot, and the driving rod of the eccentric motor penetrates through the through hole of the second accommodating slot and extends into the eccentric hole of the blade group.
The roller brush hair cutting device according to claim 12, wherein the blade group is driven by the stepping motor to perform a telescopic movement in a direction perpendicular to the cutting edge of the blade.
The roller brush hair cutting device according to claim 12, characterized in that the blade group is reciprocated in a direction parallel to the cutting edge of the blade under the driving of an eccentric motor.
The roller brush hair cutting device according to claim 12, wherein a screw hole is provided in the slider, and a thread is provided on the outer surface of the driving rod of the stepper motor; The screw holes of the slider cooperate to slideably fix the slider to a driving rod of the driving motor.
The roller brush hair cutting device according to claim 12, wherein the blade group further comprises: at least one limit hole; and the base frame is further provided with a limit hole corresponding to the blade group. Limit post

The limiting post of the base frame is penetrated in the limiting hole of the blade group, and the limiting hole has an empty space in the direction of the cutting edge of the blade.
The roller brush hair cutting device according to claim 12, wherein the blade set comprises: at least two of the blades placed on top of each other;

The edge of the blade is jagged;

The at least two blades are alternately moved with each other in a direction parallel to the cutting edge of the blade under the driving of the eccentric motor.
The roller brush cutting device according to claim 12, wherein the roller brush cutting device further comprises: a cover plate;

The cover plate is fixed to the base frame and covered on an outer surface of the blade set.
A sweeping machine, the bottom of the sweeping machine is provided with a ventilation opening communicating with the air duct, and a rolling brush is fixed at the ventilation opening, characterized in that the sweeping machine further comprises one fixed to the ventilation opening, as claimed in claim 1 Or the roller brush hair cutting device according to 12;

The bristles of the roller brush can be rotated to a position corresponding to the blade edge of the blade group of the roller brush cutting device, and contact the blade edge.