CN217137930U

CN217137930U - Lifting assembly, sweeping assembly and sweeping robot

Info

Publication number: CN217137930U
Application number: CN202220742369.XU
Authority: CN
Inventors: 魏年勇; 王永超; 李达; 陈景超
Original assignee: Shenzhen Barnes & Noble Robot Co ltd
Current assignee: Shenzhen Barnes & Noble Robot Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-09
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to a mechanical field of sweeping the floor, especially a lifting unit, sweep and drag the subassembly and sweep the floor robot, the robot of sweeping the floor includes foretell lifting unit and drags the subassembly of sweeping, when meetting ground articles such as carpets, the first motor cooperation lift steel wire of accessible rises the bottom plate and sweep the tray, makes it keep the interval with ground, conveniently sweeps the robot walking of sweeping the floor, can drive simultaneously through the second motor and sweep tray and round brush simultaneous working, a plurality of motion work units are unified to be provided power by a motor, sparingly sweep robot inner space and cost greatly.

Description

Lifting assembly, sweeping assembly and sweeping robot

Technical Field

The application relates to the field of sweeping machinery, in particular to a lifting assembly, a sweeping and mopping assembly and a sweeping robot.

Background

With the wide application of the sweeping robot in the life of people, the existing sweeping machine is provided with the mopping device at the bottom, so that the floor can be cleaned while the sweeping robot walks. Due to the mopping device, when the sweeper encounters an object with large plane resistance, such as a carpet, laid on the ground, the sweeper is difficult to move smoothly from the upper surface of the sweeper, and on the other hand, the mopping device can wet the carpet and the like, so that the original structure of the carpet can be damaged due to high power, and the service life of the carpet can be influenced.

The existing sweeper movement working unit is powered by a single motor, so that different motors are configured in different action modes, a plurality of motors occupy a large amount of space, the dead weight is increased, the control is complex, and the cost is high.

Disclosure of Invention

In view of the above, the present application is proposed in order to provide a lifting assembly, a sweeping assembly and a sweeping robot that overcome or at least partially solve the above problems.

The utility model provides a lifting unit locates between the roof and the bottom plate of machine of sweeping the floor, the bottom plate bottom surface is rotated and is equipped with the tray that sweeps that is used for clean ground, lifting unit includes the lift steel wire, and locates the first motor and the direction wheelset of roof bottom surface, the one end of lift steel wire with the bottom plate is connected, the other end is around the warp the rail surface of direction wheelset with the power take off end of first motor is connected.

Preferably, a section of the lifting steel wire between the bottom plate and the guide wheel set is vertical to the ground.

Preferably, the bottom plate is provided with a guide pillar, and the top plate is provided with a guide sleeve matched with the guide pillar.

Preferably, the end of the guide pillar is provided with a limiting column through a screw connection, a stepped hole is formed in the guide sleeve, a limiting ring corresponding to the stepped surface of the stepped hole is arranged on the outer wall of the limiting column, a spring abutted against the top plate is arranged in the limiting column, and the limiting ring is abutted against the stepped surface through the acting force of the spring.

Preferably, the external electricity of first motor is connected with first travel switch and second travel switch, the top surface of bottom plate corresponds first travel switch is equipped with the trigger lever that goes upward, corresponds second travel switch is equipped with down the trigger lever, works as when the bottom plate goes upward, it touches to go upward the trigger lever first travel switch makes first motor shuts down, or, works as when the bottom plate is down, it touches to go down the trigger lever second travel switch makes first motor shuts down.

Preferably, the descending trigger rod is in an L shape, and the distance between the descending trigger rod and the second travel switch is equal to the distance between the ascending trigger rod and the first travel switch.

Preferably, a worm gear reducer is built in the first motor.

A sweeping and mopping assembly comprises a bottom plate, a second motor, a first speed reducer, a second speed reducer, a sweeping and mopping plate and a rolling brush, wherein the second motor, the first speed reducer and the second speed reducer are arranged on the top surface of the bottom plate, the sweeping and mopping plate is arranged on the bottom surface of the bottom plate, a first output shaft and a second output shaft are coaxially arranged on the left and right sides of the second motor in an extending manner, the first speed reducer is connected with the first output shaft, the second speed reducer is connected with the second output shaft, the output shaft of the first speed reducer and the output shaft of the second speed reducer penetrate through the bottom plate and are respectively connected with the sweeping and mopping plate, two sides of the rolling brush are fixedly arranged at the horizontal outside of the bottom plate, a first transmission fluted disc is arranged at one end part of a rotating shaft of the rolling brush corresponding to the second output shaft, the second output shaft extends to the outside of the second speed reducer and is provided with a second transmission fluted disc, and a transmission belt is wound between the first transmission fluted disc and the second transmission fluted disc.

Preferably, the diameter of the first driving toothed disc is greater than the diameter of the second driving toothed disc.

A sweeping robot comprises the lifting assembly and the sweeping and mopping assembly.

The application has the following advantages: the lifting unit that the robot that sweeps floor included in this application is when meetting ground articles such as carpet, and the first motor cooperation lift steel wire of accessible rises the bottom plate and sweeps the tray, makes it keep the interval with ground, conveniently sweeps floor the robot walking, and on the other hand, the subassembly of sweeping that includes can drive simultaneously through the second motor and sweep tray and round brush simultaneous working, and a plurality of motion work units are unified to be provided power by a motor, sparingly sweep floor robot inner space and cost greatly.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a sweeping robot in an embodiment of the present application;

fig. 2 is a schematic top view of a sweeping robot in an embodiment of the present application;

fig. 3 is a schematic view of an internal structure of a cleaning robot in an embodiment of the present application;

fig. 4 is a schematic power structure diagram of a lifting assembly of a sweeping robot in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a travel switch of a sweeping robot in an embodiment of the present application;

FIG. 6 is a cross-sectional view A-A of FIG. 2;

in the figure, 1, a top plate; 2. a base plate; 3. sweeping the tray; 11. lifting steel wires; 12. a first motor; 13. a guide wheel set; 21. a guide post; 22. a guide sleeve; 23. a limiting column; 24. a limiting ring; 25. a spring; 31. a first travel switch; 32. a second travel switch; 33. an upward trigger lever; 34. a downward trigger lever; 41. a second motor; 42. a first speed reducer; 43. a second speed reducer; 44. rolling and brushing; 45. a first transmission fluted disc; 46. a second transmission fluted disc; 47. a transmission belt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference is made to fig. 1-6.

The utility model provides a lifting unit locates and sweeps floor between robot's roof 1 and bottom plate 2, and bottom plate 2 rotates and is equipped with the tray 3 that sweeps that is used for clean ground, and the machine of sweeping floor is when walking, simultaneous control sweep tray 3 and rotate in order to clean ground.

In the forward process of the sweeper, when the sweeper is detected to run on an object with high plane resistance, such as a carpet, the sweeper tray 3 needs to be lifted to keep a certain interval with the floor carpet and the like. Above-mentioned lifting unit includes lifting steel wire 11, and locates the first motor 12 and the direction wheelset 13 of 1 bottom surfaces of roof, lifting steel wire 11's one end with bottom plate 2 is connected, the other end around the warp the rail surface of direction wheelset 13 with the power take off of first motor 12 is connected.

Through above-mentioned lift steel wire 11, and locate the first motor 12 and the direction wheelset 13 of 1 bottom surface of roof, lift steel wire 11's one end with bottom plate 2 is connected, the other end is around the warp the rail surface of direction wheelset 13 with the power take off end of first motor 12 is connected, and first motor 12 pulls lift steel wire 11, under the guide effect of leading wheel, bottom plate 2 upwards rises and drives and sweep tray 3 and keep away from ground, avoids sweeping tray 3 and rotates and cause the damage to the carpet to and the influence robot that sweeps floor gos forward.

The above-mentioned lifting assembly will be further explained below.

In one embodiment, a section of the lifting steel wire 11 between the bottom plate 2 and the guide wheel set 13 is perpendicular to the ground.

It should be noted that the guide wheel set 13 at least includes another guide wheel, and the lifting steel wire 11 is sequentially wound around the plurality of guide wheels.

In an embodiment, a guide post 21 is disposed on the bottom plate 2, and a guide sleeve 22 adapted to the guide post 21 is disposed on the top plate 1. The four corners of the bottom plate 2 are respectively provided with guide posts 21, and the four corners of the top plate 1 are respectively provided with a guide sleeve 22 corresponding to each guide post 21, so that the bottom plate 2 can move up and down in parallel relative to the top plate 1 through the cooperation of the guide posts 21 and the guide sleeves 22.

In an embodiment, a limit post 23 is connected to an end of the guide post 21 by a screw, a stepped hole is formed in the guide sleeve 22, a limit ring 24 corresponding to a stepped surface of the stepped hole is formed on an outer wall of the limit post 23, a spring 25 abutting against the top plate 1 is formed in the limit post 23, and the limit ring 24 abuts against the stepped surface by an acting force of the spring 25.

Understandably, the traction force of the first motor 12 is greater than the elastic resistance of the spring 25, and under the elastic force action of the spring 25, one end of the spring 25 abuts against the inside of the limit column 23, and the other end abuts against the top plate 1, so that the limit ring 24 abuts against the stepped surface; when the stop ring 24 abuts against the step surface, the guide post 21 further moves downward, so that the bottom plate 2 and the mopping plate 3 are closer to the ground.

In an embodiment, a first travel switch 31 and a second travel switch 32 are electrically connected to an external portion of the first motor 12, an upward trigger bar 33 is disposed on the top surface of the base plate 2 corresponding to the first travel switch 31, and a downward trigger bar 34 is disposed corresponding to the second travel switch 32, when the base plate 2 moves upward, the upward trigger bar 33 touches the first travel switch 31 to stop the first motor 12, or when the base plate 2 moves downward, the downward trigger bar 34 touches the second travel switch 32 to stop the first motor 12.

It should be noted that, the first travel switch 31 and the second travel switch 32 are respectively electrically connected with a controller in the robot of the sweeper, and when the first travel switch 31 and the second travel switch 32 are triggered, the floor 2 and the sweeping tray 3 can be controlled to be stopped in time when ascending and descending.

In one embodiment, the downward trigger lever 34 is "L" shaped, and the distance between the downward trigger lever 34 and the second travel switch 32 is equal to the distance between the upward trigger lever 33 and the first travel switch 31, so that the upward and downward triggers the travel switches by the same distance as the bottom plate 2.

In an embodiment, a worm gear reducer is built in the first motor 12.

As also shown in fig. 3.

The utility model provides a sweep and drag subassembly, the clean work that main user dragged, swept ground when sweeping the robot and go forward mainly includes bottom plate 2, second motor 41, first speed reducer 42, second speed reducer 43, sweeps tray 3 and round brush 44, second motor 41 first speed reducer 42 with second speed reducer 43 locates on the 2 top surfaces of bottom plate, sweep tray 3 locates the bottom surface of bottom plate 2, second motor 41 controls coaxial extension and is equipped with first output shaft and second output shaft, first speed reducer 42 with first output shaft connection second speed reducer 43 with the second output shaft connection, the output shaft of first speed reducer 42 with the output shaft of second speed reducer 43 passes bottom plate 2 is connected with respectively sweep tray 3, the both sides of round brush 44 set firmly in bottom plate 2 level outside, the pivot of round brush 44 corresponds the tip of second output shaft is equipped with first transmission fluted disc 45, the second output shaft extends to the outside of the second speed reducer 43 and is provided with a second transmission fluted disc 46, and a transmission belt 47 is wound between the first transmission fluted disc 45 and the second transmission fluted disc 46.

Extend first output shaft and second output shaft about through the output shaft with second motor 41, each output shaft all is equipped with a speed reducer, and the output shaft of each speed reducer passes bottom plate 2 and is connected with respectively and sweeps tray 3, sweeps tray 3 and cleans ground through two of second motor 41 simultaneous drive. On the other hand, the second output shaft continues to extend and is sleeved with a second transmission fluted disc 46, the second transmission fluted disc 46 is connected with the first transmission fluted disc coaxially mounted on the roller brush through a transmission belt 47, that is, when the second motor 41 is started, the second motor can drive the roller brush 44 to rotate. Therefore, the second motor 41 can drive the sweeping tray 3 and the rolling brush 44 to work simultaneously, the plurality of moving working units are powered by one motor, and the internal space and the cost of the sweeping robot are greatly saved.

In one embodiment, the diameter of the first drive sprocket 45 is greater than the diameter of the second drive sprocket 46.

The application also provides a sweeping robot, which comprises the lifting assembly and the sweeping and mopping assembly mentioned in all the embodiments.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The lifting assembly, the sweeping assembly and the sweeping robot provided by the application are introduced in detail, specific examples are applied in the description to explain the principle and the implementation mode of the application, and the description of the embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. The utility model provides a lifting unit, its characterized in that locates between the roof and the bottom plate of the robot of sweeping the floor, the bottom plate bottom surface is rotated and is equipped with the tray that sweeps that is used for clean ground, lifting unit includes the lift steel wire, and locates the first motor and the direction wheelset of roof bottom surface, the one end of lift steel wire with the bottom plate is connected, the other end is around the warp the rail surface of direction wheelset with the power take off end of first motor is connected.

2. The lift assembly of claim 1, wherein a section of the lift wire between the base plate and the guide wheel assembly is perpendicular to the ground.

3. The lifting assembly as recited in claim 1, wherein the bottom plate has guide posts thereon, and the top plate has guide sleeves adapted to the guide posts.

4. The lifting assembly as claimed in claim 3, wherein the guide post has a limiting post at its end connected with a screw, the guide sleeve has a stepped hole therein, the limiting post has a limiting ring at its outer wall corresponding to the stepped surface of the stepped hole, the limiting post has a spring in contact with the top plate, and the spring is acted to urge the limiting ring to contact the stepped surface.

5. The lifting assembly as recited in claim 1, wherein the first motor is electrically connected to a first travel switch and a second travel switch, the top surface of the base plate is provided with an upward trigger rod corresponding to the first travel switch and a downward trigger rod corresponding to the second travel switch, and when the base plate moves upward, the upward trigger rod touches the first travel switch to stop the first motor, or when the base plate moves downward, the downward trigger rod touches the second travel switch to stop the first motor.

6. The lift assembly of claim 5, wherein the down link trigger lever is "L" shaped, and the distance between the down link trigger lever and the second travel switch is the same as the distance between the up link trigger lever and the first travel switch.

7. The lift assembly of claim 1, wherein a worm gear reducer is incorporated into the first motor.

8. A sweeping and mopping assembly is characterized by comprising a bottom plate, a second motor, a first speed reducer, a second speed reducer, a sweeping and mopping plate and a rolling brush, wherein the second motor, the first speed reducer and the second speed reducer are arranged on the top surface of the bottom plate, the sweeping and mopping plate is arranged on the bottom surface of the bottom plate, a first output shaft and a second output shaft are coaxially arranged on the left and right sides of the second motor in an extending mode, the first speed reducer is connected with the first output shaft, the second speed reducer is connected with the second output shaft, the output shaft of the first speed reducer and the output shaft of the second speed reducer penetrate through the bottom plate and are respectively connected with the sweeping and mopping plate, two sides of the rolling brush are fixedly arranged on the horizontal outer portion of the bottom plate, a first transmission fluted disc is arranged at one end portion, corresponding to the second output shaft, of the rolling brush, of the second output shaft extends to the outer portion of the second speed reducer and is provided with a second transmission fluted disc, and a transmission belt is wound between the first transmission fluted disc and the second transmission fluted disc.

9. The mop assembly of claim 8, wherein the first drive sprocket has a diameter greater than a diameter of the second drive sprocket.

10. A sweeping robot comprising a lifting assembly as claimed in any one of claims 1 to 7 and a sweeping assembly as claimed in any one of claims 8 to 9.