CN115349792A

CN115349792A - A walking module and cleaner for cleaner

Info

Publication number: CN115349792A
Application number: CN202210903918.1A
Authority: CN
Inventors: 高捷; 郑军妹; 汤文斌; 张旭东; 曹斌
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-18
Anticipated expiration: 2042-07-29
Also published as: CN115349792B

Abstract

A walking module for a cleaning machine comprises a shell, a walking wheel, a driving mechanism and a transmission part, wherein the walking wheel is provided with an inner circumferential wall which is positioned on the inner side of an outer circumferential wall and is coaxially arranged with the outer circumferential wall, and the inner circumferential wall is provided with a limiting groove; the transmission part can be constrained in a cavity surrounded by the inner peripheral wall of the travelling wheel in a way of rotating back and forth around the axis, and is provided with a limiting part which is opposite to the inner peripheral wall of the travelling wheel and can extend into the limiting groove; meanwhile, the transmission piece is connected with the power output end of the driving mechanism, so that the torque of the power output end of the driving mechanism can be transmitted to the travelling wheels through the limiting part and the limiting groove to drive the travelling wheels to rotate along with the transmission piece; the limiting portion is arranged to be capable of bending and deforming to be separated from the constraint of the limiting groove in a state that a difference in rotational speed is generated between the traveling wheel and the transmission member. The application also discloses a cleaning machine with the walking module. Compared with the prior art, the service life of the driving mechanism can be prolonged.

Description

A walking module and cleaner for cleaner

Technical Field

The invention belongs to the technical field of household washing and cleaning, and particularly relates to a walking module for a cleaning machine and the cleaning machine.

Background

The structure disclosed in the patent application for invention with application number CN202011564244.4, namely, a brush head module and a cleaning machine for a cleaning machine (application publication number CN 114680711A) and utility model patent with application number CN202122940606.1, a floor brush module and a cleaning machine for a cleaning machine (publication number CN 216776857U), of the conventional cleaning machine mostly comprises a floor brush module with a casing, a brush piece and a wheel structure, wherein the bottom wall of the casing is provided with a suction inlet, and the brush piece can be rotatably arranged at the suction inlet. The wheel structure can be constrained on the shell in a front-back rotating manner and is driven by a driving mechanism such as a motor and the like, so that the shell is driven to move back and forth.

However, in actual use, the following situations exist: 1. the speed of the user pushing the cleaning machine to advance is greater than the rotating speed of the wheel structure, and at the moment, the driving machine forms extra resistance; 2. as the user drags back and forth across the soiled area, the drive mechanism is forced to reverse or come to rest, which not only creates additional drag, but can also lead to burn out of the drive mechanism.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a walking module for a cleaning machine to improve the service life of a driving mechanism, aiming at the current state of the prior art.

The second technical problem to be solved by the invention is to provide a cleaning machine with the walking module.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a walking module for a cleaning machine, comprising:

a housing;

the travelling wheel takes the advancing direction of the cleaning machine as the front side, the travelling wheel can be constrained on the shell in a way of rotating back and forth around an axis extending in the left-right direction of the travelling wheel, and at least part of the peripheral wall of the travelling wheel is positioned below the bottom wall of the shell, so that the travelling wheel can drive the shell to move back and forth;

the driving mechanism is arranged on the shell and is used for driving the travelling wheels to rotate;

the method is characterized in that:

the travelling wheel is also provided with an inner peripheral wall which is positioned on the inner side of the outer peripheral wall and is arranged coaxially with the outer peripheral wall, and the inner peripheral wall is provided with a limiting groove;

the walking module also comprises:

the transmission part can be constrained in a cavity surrounded by the inner peripheral wall of the travelling wheel in a way of rotating back and forth around the axis, and is provided with a limiting part which is opposite to the inner peripheral wall of the travelling wheel and can extend into the limiting groove; meanwhile, the transmission piece is connected with the power output end of the driving mechanism, so that the torque of the power output end of the driving mechanism can be transmitted to the travelling wheels through the limiting part and the limiting groove to drive the travelling wheels to rotate along with the transmission piece;

and, under the state that produces the rotational speed difference between driving wheel and the driving medium, the spacing portion is arranged to can take place bending deformation and break away from the restraint of spacing groove.

Preferably, the limiting parts are at least two and are arranged at intervals along the circumferential direction of the inner circumferential wall of the traveling wheel, and the limiting grooves are at least two and are arranged along the circumferential direction of the inner circumferential wall of the traveling wheel, so that the limiting parts can be simultaneously inserted into the corresponding limiting grooves.

Preferably, the number of the limiting parts is less than that of the limiting grooves, the limiting parts and the limiting grooves are arranged at equal intervals along the circumferential direction of the inner circumferential wall of the traveling wheel, and the spacing distance between every two adjacent limiting grooves is less than that between every two adjacent limiting parts.

In the above solution, preferably, the transmission part includes a transmission column extending in the left-right direction and arranged coaxially with the traveling wheel, and a gap is formed between a circumferential surface of the transmission column and an inner circumferential wall of the traveling wheel; the transmission part further comprises a deformable scraping piece, the root of the scraping piece is constrained to the transmission column, and the head of the scraping piece is used as the limiting part to penetrate through the gap and extend into the limiting groove. The existence in clearance makes transmission post and walking wheel rotate respectively and each other not influence, and breaks away from the spacing groove after the head deformation of the doctor-bar of being convenient for.

In order to facilitate the loading and unloading of the scraping blade, preferably, the thickness of the root of the scraping blade is greater than that of the head, the peripheral surface of the transmission column is provided with a slot, the slot penetrates through the end surface of the transmission column, so that the root of the scraping blade can be inserted into the slot along the left-right direction, and the notch of the slot is arranged to allow only the head of the scraping blade to pass through. So, remove the installation that the doctor-bar can realize the doctor-bar through removing about, dismantle the change, and the doctor-bar can retrain the slot more steadily during the use.

Further, the limiting groove is a strip-shaped groove extending along the left-right direction, the length direction of the scraping blade extends along the left-right direction, and the head and the root are located in the width direction of the scraping blade.

In each of the above schemes, preferably, the traveling wheels have at least two and are disposed at the left and right sides of the housing, and the number of the transmission members matches the number of the traveling wheels and are disposed in the cavities of the respective traveling wheels.

Preferably, the driving mechanism is a motor, and the number of the motors is matched with the number of the transmission members and is arranged corresponding to each transmission member. In addition, one motor can also be provided with at least two output shafts, and each output shaft drives the corresponding transmission part to rotate. Or one motor drives each transmission part to rotate through the transmission parts.

The technical scheme adopted by the invention for solving the second technical problem is as follows: a cleaning machine with the walking module is provided.

Preferably, the electric vehicle further comprises a brush which can be rotationally constrained to the shell and is arranged at a distance in tandem with the road wheels.

Compared with the prior art, the invention has the advantages that: the limiting groove is formed in the inner peripheral wall of the travelling wheel, the transmission part connected with the power output end of the driving mechanism is additionally arranged, and the limiting part on the transmission part can extend into the limiting groove or deform to be separated from the limiting groove; and the walking wheels basically cannot influence the normal operation of the driving mechanism, and the service life of the driving mechanism is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a walking module according to an embodiment of the present invention;

FIG. 2 is a partial structural diagram of a walking module according to an embodiment of the present invention (a part of the top wall of the housing is omitted);

FIG. 3 is an exploded perspective view of a walking module according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a traveling wheel and a transmission member according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

fig. 6 is a schematic structural diagram of a cleaning machine according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 6, a walking module for a cleaning machine and a preferred embodiment of the cleaning machine of the present invention include a housing 1, a walking wheel 2, a driving mechanism 3 and a transmission member 4.

The travelling wheels 2 are arranged on the left side and the right side of the rear part of the machine shell 1, and the travelling wheels 2 are constrained on the machine shell in a way of rotating back and forth around an axis 20 extending in the left-right direction of the travelling wheels. At least part of the outer peripheral wall 2a of each traveling wheel 2 is located below the bottom wall of the housing 1, so that the housing 1 can be moved forward and backward. Each travelling wheel 2 still has the internal perisporium 2b that is located the periphery wall 2a inboard, arranges with periphery wall 2a coaxial line 20, and this internal perisporium 2b is equipped with spacing groove 21, and spacing groove 21 has a plurality ofly and equally spaced arrangement along the circumference of periphery wall 2b within travelling wheel 2, and each spacing groove 21 is the bar groove that extends along left and right directions to a plurality of spacing groove are whole to be the tooth's socket form.

The driving mechanism 3 is a motor, the number of the motors is matched with the number of the walking wheels 2, and each motor is installed on the casing 1 and used for driving the corresponding walking wheels 2 to rotate.

The number of the transmission pieces 4 is matched with that of the travelling wheels 2, and the transmission pieces can be constrained in a cavity surrounded by the inner peripheral walls 2b of the travelling wheels 2 corresponding to the transmission pieces around the axis 20 in a front-back rotating manner, and are provided with limiting parts 41 which are opposite to the inner peripheral walls 2b of the travelling wheels 2 and can extend into the limiting grooves 21; meanwhile, the transmission piece 4 is connected with the power output end 31 of the driving mechanism 3, so that the torque of the power output end 31 of the driving mechanism 3 can be transmitted to the walking wheel 2 through the limiting part 41 and the limiting groove 21 to drive the walking wheel 2 to rotate along with the transmission piece 4; the stopper 41 is disposed so as to be able to be bent and deformed to be out of the restraint of the stopper groove 21 in a state where a difference in rotational speed is generated between the travel wheel 2 and the transmission member 4.

In this embodiment, at least two (six in this embodiment) of the limiting portions 41 in each transmission member 4 are arranged at equal intervals along the circumferential direction of the inner circumferential wall 2b of the traveling wheel 2, the number of the limiting portions 41 is less than that of the limiting grooves 21, and the interval distance between two adjacent limiting portions 41 is greater than that between two adjacent limiting grooves 21, so that each limiting portion 41 can be inserted into the corresponding limiting groove 21 at the same time.

In particular, each transmission member 4 is structured as follows: the walking wheel driving mechanism comprises a transmission column 4a which extends along the left-right direction and is arranged coaxially with a

walking wheel

2 and 20, and the center of the transmission column 4a is connected with the output end of a corresponding motor, so that the transmission column can rotate around the axis 20 under the driving of the motor. A gap 40 is formed between the peripheral surface of the transmission column 4a and the inner peripheral wall 2b of the travelling wheel 2; the transmission member 4 further includes a plurality of deformable scraping pieces 4b, the length direction of each scraping piece 4b extends along the left-right direction, the root of each scraping piece in the width direction is constrained to the transmission post 4a, and the head of each scraping piece in the width direction as the limiting part 41 penetrates through the gap 40 and extends into the limiting groove 21. Meanwhile, the thickness of the root of each wiper blade 4b is greater than that of the head, the circumferential surface of the transmission post 4a is provided with a slot 42, the slot 42 penetrates the end surface of the transmission post 4a, so that the root of the wiper blade 4b can be inserted into the slot 42 along the left-right direction, and the notch 420 of the slot 42 is arranged to allow only the head of the wiper blade 4b to pass through. Therefore, the scraping sheets can only move along the left and right directions under the action of external force and cannot move along the radial direction of the transmission column, so that the positions of the scraping sheets relative to the limiting grooves are fixed, and the stable work of the scraping sheets is ensured.

Meanwhile, in the embodiment, in order to enable the scraping blades 4b to more stably drive the travelling wheels 2 to rotate, the width direction of each scraping blade 4b extends along the radial direction of the transmission column 4 a; the limiting groove 21 on the inner peripheral wall 2b of the travelling wheel 2 is provided with a first groove wall 211 and a second groove wall 212 which are oppositely arranged along the circumferential direction, under the state that the head part of the scraping piece 4b is restrained in the limiting groove 21, the first groove wall 211 is attached to the surface of the scraping piece 4b, so that the scraping piece 4b can drive the travelling wheel 2 to rotate, and the second groove wall 212 and the first groove wall 211 are arranged in an acute angle, so that the head part of the scraping piece 4b can be bent and deformed to be separated from the restraint of the limiting groove 21.

As shown in fig. 6, the cleaning machine of the present embodiment is a floor-cleaning machine, which has the above-mentioned traveling module, and the front part of the housing 1 of the traveling module is provided with a rotatable brush 5 for cleaning the surface to be cleaned. The specific structure of the brush 5 and the assembly manner with the casing 1 can refer to the prior art, and are not described herein. Meanwhile, the cleaning machine of the embodiment further comprises a sewage tank located above the walking module, a fan located above the sewage tank, and the like, the sewage tank, the fan, and the like are all in the prior art, and the connection structure and the position between the sewage tank and the walking module can refer to the prior art respectively, which is not described herein.

Directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "bottom," and the like, used in the description and claims of the present application to describe various example structural portions and elements of the present application are used herein for convenience of description only and are to be determined based on the example orientations shown in the figures. Because the embodiments disclosed herein may be arranged in different orientations, these directional terms are used for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to directions opposite or consistent with the direction of gravity.

Claims

1. A walking module for a cleaning machine, comprising:

a housing (1);

the travelling wheel (2) takes the advancing direction of the cleaning machine as the front side, the travelling wheel (2) can be constrained on the machine shell (1) in a front-and-back rotating way around an axis (20) extending in the left-and-right direction of the travelling wheel, and at least part of the outer peripheral wall (2 a) of the travelling wheel (2) is positioned below the bottom wall of the machine shell (1), so that the machine shell (1) can be driven to move back and forth;

the driving mechanism (3) is arranged on the machine shell (1) and is used for driving the travelling wheels (2) to rotate;

the method is characterized in that:

the travelling wheel (2) is also provided with an inner peripheral wall (2 b) which is positioned on the inner side of the outer peripheral wall (2 a) and is arranged coaxially (20) with the outer peripheral wall (2 a), and the inner peripheral wall (2 b) is provided with a limiting groove (21);

the walking module also comprises:

the transmission piece (4) can be constrained in a cavity surrounded by the inner peripheral wall (2 b) of the walking wheel (2) in a way of rotating back and forth around the axis (20), and is provided with a limiting part (41) which is opposite to the inner peripheral wall (2 b) of the walking wheel (2) and can extend into the limiting groove (21); meanwhile, the transmission piece (4) is connected with the power output end (31) of the driving mechanism (3), so that the torque of the power output end (31) of the driving mechanism (3) can be transmitted to the walking wheel (2) through the limiting part (41) and the limiting groove (21) to drive the walking wheel (2) to rotate along with the transmission piece (4);

and the stopper portion (41) is arranged so as to be able to be bent out of the restraint of the stopper groove (21) in a state where a rotational speed difference is generated between the travel wheel (2) and the transmission member (4).

2. The walking module of claim 1, wherein: the limiting parts (41) are at least two and are arranged at intervals along the circumferential direction of the inner circumferential wall (2 b) of the travelling wheel (2), and the limiting grooves (21) are at least two and are arranged along the circumferential direction of the inner circumferential wall (2 b) of the travelling wheel (2) so that the limiting parts (41) can be simultaneously inserted into the corresponding limiting grooves (21).

3. The walking module of claim 2, wherein: the number of the limiting parts (41) is less than that of the limiting grooves (21), the limiting parts (41) and the limiting grooves (21) are arranged at equal intervals along the circumferential direction of the inner circumferential wall (2 b) of the traveling wheel (2), and the spacing distance between every two adjacent limiting grooves (21) is less than that between every two adjacent limiting parts (41).

4. The walking module of claim 1, wherein: the transmission part (4) comprises a transmission column (4 a) which extends along the left-right direction and is arranged coaxially (20) with the travelling wheel (2), and a gap (40) is formed between the peripheral surface of the transmission column (4 a) and the inner peripheral wall (2 b) of the travelling wheel (2); the transmission part (4) further comprises a deformable scraping piece (4 b), the root of the scraping piece (4 b) is constrained to the transmission column (4 a), and the head of the scraping piece (4 b) is used as the limiting part (41) to penetrate through the gap (40) and extend into the limiting groove (21).

5. The walking module of claim 4, wherein: the thickness of the root of the scraping piece (4 b) is larger than that of the head, a slot (42) is formed in the peripheral surface of the transmission column (4 a), the slot (42) penetrates through the end face of the transmission column (4 a), so that the root of the scraping piece (4 b) can be inserted into the slot (42) in the left-right direction, and a notch (420) of the slot (42) is arranged to enable the head of the scraping piece (4 b) to penetrate through.

6. The walking module of claim 4, wherein: the limiting groove (21) is a strip-shaped groove extending along the left-right direction, the length direction of the scraping blade (4 b) extends along the left-right direction, and the head and the root are located in the width direction of the scraping blade (4 b).

7. A walking module according to any one of claims 1-6, characterized in that: the walking wheels (2) are provided with at least two walking wheels and arranged at the left side and the right side of the casing (1), and the number of the transmission parts (4) is matched with that of the walking wheels (2) and arranged in the cavities of the walking wheels (2) corresponding to the transmission parts.

8. The walking module of claim 7, wherein: the driving mechanism (3) is a motor, and the number of the motors is matched with that of the transmission pieces (4) and is arranged corresponding to the respective transmission pieces (4).

9. A cleaning machine having a walking module as claimed in any one of claims 1 to 8.

10. The cleaning machine of claim 9, wherein: the electric vehicle also comprises a brush piece (5) which can be rotationally constrained in the machine shell (1) and is arranged at intervals in tandem with the travelling wheels (2).