Rotary mop external expansion mechanism of sweeper

Abstract

The utility model relates to the technical field of sweeping robots, and discloses a rotary mop external expansion mechanism of a sweeper, which comprises a bottom plate, a fixed mop component, a movable mop component, a mopping component, a driving component and a torsion spring, the mopping component is arranged at the top end of the bottom plate, the driving component is arranged on one side adjacent to the mopping component, and the torsion spring is arranged on the bottom plate. The torsional spring is arranged between the mopping assembly and the driving assembly. According to the rotary mop external expansion mechanism of the sweeper, the worm is driven by the driving motor to rotate, so that the helical teeth rotate synchronously, the linkage gear and the meshing gear are matched with each other, so that the cam rotates, the pressure on the shell for driving the movable mop assembly is released, and the movable mop assembly swings outwards under the tension action of the torsion spring, so that the rotary mop assembly is expanded. After wall cleaning is completed, the driving motor rotates reversely, the shell is pressed by the cam, the shell is dragged to be recycled towards the bottom plate, the movable mop assembly is prevented from colliding with other objects when the sweeping robot moves, and therefore cleaning operation of the robot is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robot technology, and in particular to the rotating mop expansion mechanism of a sweeping robot. Background Technology

[0002] Robotic vacuum cleaners are modern electronic products that clean floors by moving around, thus reducing the amount of work users need to do in their homes and freeing up manpower.

[0003] However, traditional robotic vacuum cleaners use a fixed mop. As the robot moves, some corners may collide with the extended mop, affecting its normal movement and cleaning performance. Utility Model Content

[0004] The main purpose of this utility model is to provide a rotating mop extension mechanism for a sweeping robot, which aims to solve the technical problem in the prior art where the mop is only installed in a fixed position, and the mop extending outside the sweeping robot body will collide with external objects when the sweeping robot moves, thus affecting the movement of the sweeping robot.

[0005] To achieve the above objectives, the first aspect of this utility model proposes a rotating mop expansion mechanism for a sweeper, applied to the base plate, comprising:

[0006] A fixed mop assembly and a movable mop assembly are provided at the bottom end of the base plate;

[0007] A mopping assembly, which is disposed at the top of the base plate, is used to drive the rotation of the movable mop assembly;

[0008] A drive assembly is disposed on one side adjacent to the mopping assembly, and the drive assembly is used for moving the mopping assembly;

[0009] A torsion spring is disposed between the mopping assembly and the drive assembly, and the torsion spring is used to push the mopping assembly.

[0010] Furthermore, a guide groove is provided at the top of the base plate, and a connecting post for connecting with the mopping assembly is fixedly connected to the top of the movable mop assembly. The connecting post is interlocked with the guide groove.

[0011] Furthermore, the mopping assembly includes:

[0012] A housing, which is disposed at the top of the base plate;

[0013] A drive shaft is located at the bottom end of the housing and is used to drive the rotation of the connecting column.

[0014] Furthermore, the top of the connecting column is provided with a plug-in groove, and the drive shaft is inserted and connected to the plug-in groove.

[0015] Furthermore, a first round rod is fixedly connected to the top of the base plate, and a slot is provided at the bottom of the housing, with the first round rod inserted into the slot.

[0016] Furthermore, the driving component includes:

[0017] A cam, wherein the cam is disposed on one side of the outer wall of the housing;

[0018] A meshing gear, the top end of which is fixedly connected to the bottom end of a cam, and a second round rod for mounting the meshing gear is fixedly connected to the top end of the base plate;

[0019] A driving component is disposed on one side of the meshing gear, and the driving component is used to drive the rotation of the meshing gear.

[0020] Furthermore, the driving element includes:

[0021] A drive motor is disposed on one side of the cam;

[0022] The worm gear is sleeved on the outer wall of the output end of the drive motor;

[0023] A linkage component is disposed between the worm gear and the meshing gear.

[0024] Furthermore, the linkage component includes:

[0025] Helical teeth, which mesh with the worm gear;

[0026] The linkage gear has its bottom end fixedly connected to the top end of the helical tooth, and the linkage gear meshes with the meshing gear.

[0027] Furthermore, the top ends of the helical gear and the linkage gear are respectively provided with circular grooves, and the first circular rod is inserted into the inside of the circular grooves.

[0028] Furthermore, the torsion spring is sleeved on the outer wall of the first round rod, and one end of the torsion spring is fixedly connected to the outer wall of the housing.

[0029] Beneficial effects:

[0030] This utility model discloses a rotary mop expansion mechanism for a sweeping robot. When the sweeping robot is cleaning along a wall, the drive motor drives the worm gear to rotate, causing the helical gear to rotate synchronously. Through the interaction between the linkage gear and the meshing gear, the cam rotates, releasing the pressure on the housing of the movable mop assembly. Under the tension of the torsion spring, the housing allows the movable mop assembly to swing outward. After the wall is cleaned, the drive motor reverses, causing the cam to press against the housing and drag it back to the base plate. This prevents the movable mop assembly from colliding with other objects while the sweeping robot is moving, thus facilitating the robot's cleaning operation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the retracted state of the mop of this utility model;

[0033] Figure 3 This is a schematic diagram of the mop in the unfolded state of this utility model;

[0034] Figure 4 This is a three-dimensional structural diagram of the mopping component and drive component of this utility model;

[0035] Figure 5 This is a schematic diagram of the overall exploded structure of this utility model.

[0036] in:

[0037] 1-Base plate; 2-Fixed mop assembly; 3-Moving mop assembly; 4-Mopping assembly; 401-Housing; 402-Drive shaft; 5-Drive assembly; 501-Drive motor; 502-Worm gear; 503-Helical gear; 504-Linkage gear; 505-Meshing gear; 506-Cam; 6-Connecting column; 7-First round rod; 8-Torsion spring; 9-Second round rod.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Reference Figure 1-5 An embodiment of the present invention provides a rotating mop expansion mechanism for a sweeper, applied to the base plate 1, comprising:

[0044] Fixed mop assembly 2 and movable mop assembly 3 are disposed at the bottom end of base plate 1;

[0045] Mopping assembly 4 is located at the top of the base plate 1 and is used to drive the rotation of the movable mop assembly 3.

[0046] Drive component 5 is located on one side adjacent to mopping component 4 and is used to move mopping component 4.

[0047] Torsion spring 8 is disposed between mopping assembly 4 and drive assembly 5, and is used to push mopping assembly 4.

[0048] The top of the base plate 1 is provided with a guide groove, and the top of the movable mop assembly 3 is fixedly connected with a connecting post 6 for connecting with the mopping assembly 4. The connecting post 6 is interlocked with the guide groove.

[0049] Furthermore, both the fixed mop assembly 2 and the movable mop assembly 3 are composed of a mop and a mounting frame. The mop is attached to the bottom of the mounting frame, similar to the cleaning turntable principle of existing robotic vacuum cleaners. The guide groove is an arc-shaped groove, and a through hole is provided at the top of the base plate 1 for installing the fixed mop assembly 2. The position of the fixed mop assembly 2 does not change, but it rotates to perform cleaning operations. The movable mop assembly 3 swings outward during cleaning, which is beneficial for cleaning corners. The connecting column 6 is heat-fused to the top of the mounting frame of the movable mop assembly 3. The guide groove restricts the movement of the connecting column 6 along the guide groove. When the movable mop assembly 3 is not extended outward, the movable mop assembly 3 and the fixed mop assembly 2 form a "bow-shaped" mopping state.

[0050] Mopping component 4 includes:

[0051] Housing 401, housing 401 is disposed at the top of base plate 1;

[0052] The drive shaft 402 is located at the bottom of the housing 401 and is used to drive the rotation of the connecting column 6.

[0053] The top of the connecting column 6 is provided with a plug-in slot, and the drive shaft 402 is inserted into the plug-in slot.

[0054] Furthermore, a motor is installed inside the housing 401 to drive the drive shaft 402 to rotate. The cross-section of the insertion slot and the connecting post 6 is a regular polygon. Thus, the drive shaft 402 is connected to the insertion slot, thereby driving the rotation of the drive shaft 402 and the rotation of the connecting post 6, thereby realizing the rotation of the movable mop assembly 3 to perform cleaning operations.

[0055] The top of the base plate 1 is fixedly connected to the first round rod 7, and the bottom of the housing 401 is provided with a slot, through which the first round rod 7 is inserted and connected.

[0056] Driver component 5 includes:

[0057] Cam 506, cam 506 is disposed on one side of the outer wall of housing 401;

[0058] The meshing gear 505 has its top end fixedly connected to the bottom end of the cam 506, and the top end of the base plate 1 is fixedly connected to a second round rod 9 for mounting the meshing gear 505.

[0059] A driving component is located on one side of the meshing gear 505 and is used to drive the rotation of the meshing gear 505.

[0060] The driving components include:

[0061] Drive motor 501 is located on one side of cam 506;

[0062] Worm 502 is sleeved on the outer wall of the output end of drive motor 501;

[0063] The linkage component is located between the worm gear 502 and the meshing gear 505.

[0064] The linkage components include:

[0065] Helical gear 503 meshes with worm 502;

[0066] The bottom end of the linkage gear 504 and the top end of the helical gear 503 are fixedly connected to the linkage gear 504, and the linkage gear 504 meshes with the meshing gear 505.

[0067] The top ends of the helical gear 503 and the linkage gear 504 are respectively provided with circular grooves, and the first circular rod 7 is inserted into the inside of the circular grooves.

[0068] The torsion spring 8 is sleeved on the outer wall of the first round rod 7, and one end of the torsion spring 8 is fixedly connected to the outer wall of the housing 401.

[0069] Furthermore, the drive motor 501 is electrically connected to the control power supply. The worm gear 502 is fixedly sleeved on the outer wall of the output shaft of the drive motor 501. The worm gear 502 meshes with the helical gear 503. The meshing principle of the worm gear 502 and the helical gear 503 is the same as that of the existing worm gear meshing. The helical gear 503 is fixedly connected to the contact part of the linkage gear 504. The meshing gear 505 meshes with the linkage gear 504. The contact part of the meshing gear 505 is fixedly connected to the contact part of the cam 506. The second round rod 9 is fixedly connected to the top of the base plate 1. A circular through groove is opened at the top of the meshing gear 505. The second round rod 9 is inserted into the circular through groove. The torsion spring 8 is installed in the housing 401 and Between the helical teeth 503, one end of the housing 401 has a limiting groove for inserting the first round rod. The top of the limiting groove is threadedly connected to the top of the first round rod 7 by a bolt, limiting the vertical displacement of the housing 401, allowing only rotation. The vertical cross-section of the housing 401 is an inverted L-shape, so the top of the housing 401 near the cam 506 will restrict the top of the cam 506, preventing the cam 506 and the meshing gear 505 from moving out of the second round rod 9. When the cleaning robot is mopping in a "bow-shaped" pattern, the cam 506 presses against the housing 401 inside the sweeper. When the cleaning robot is in the "mopping along the wall" state, the movable mop assembly 3 moves to the outside of the sweeper. When the cleaning robot is mopping along the wall, there is a gap between the right side of the robot and the right wall. At this time, the cam 506 rotates, releasing the pressure on the housing 401. Under the tension of the torsion spring 8, the housing 401 moves outward, causing the movable mop assembly 3 to swing outward and cover the gap between the robot and the wall. After the robot finishes mopping along the wall, the drive motor 501 rotates, driving the worm gear 502 to rotate. The worm gear 502 drives the helical gear 503, which in turn drives the linkage gear 504. The linkage gear 504 drives the meshing gear 505, which in turn drives the cam 506 to rotate. The cam 506 overcomes the tension of the torsion spring 8, pushing the housing 401 and the drive motor 501 to rotate. The moving shaft 402 drives the movable mop assembly 3 to move inward until the movable mop assembly 3 moves to the designated position. At this time, the drive motor 501 stops working. Since the output shaft of the drive motor 501 is equipped with a worm gear 502, after the cam 506 stops rotating, the tension of the torsion spring 8 forces the movable mop assembly 3 to move outward. The movable mop assembly 3 pushes the cam 506 to rotate in the opposite direction. Since the rotational force of the cam 506 is transmitted from the worm gear 502, and the worm gear 502 has a reverse transmission self-locking function, the cam 506 cannot rotate in the opposite direction. The cam 506 overcomes the tension of the torsion spring 8 and resists the rotation of the housing 401, so that the movable mop assembly 3 remains stationary, achieving a "bow-shaped" mopping state.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A sweeper's rotating mop extension mechanism, characterized in that, Applied to the base plate (1), including: A fixed mop assembly (2) and a movable mop assembly (3) are provided at the bottom end of the base plate (1); A mopping assembly (4) is disposed at the top of the base plate (1) and is used to drive the rotation of the movable mop assembly (3). A drive assembly (5) is disposed on one side adjacent to the mopping assembly (4), and the drive assembly (5) is used for moving the mopping assembly (4); A torsion spring (8) is disposed between the mopping assembly (4) and the drive assembly (5), and the torsion spring (8) is used to push the mopping assembly (4).

2. The sweeper's rotating mop expansion mechanism according to claim 1, characterized in that, The top of the base plate (1) is provided with a guide groove, and the top of the movable mop assembly (3) is fixedly connected with a connecting post (6) for connecting with the mopping assembly (4), and the connecting post (6) is interlocked with the guide groove.

3. The sweeper's rotating mop expansion mechanism according to claim 2, characterized in that, The mopping assembly (4) includes: A housing (401) is disposed at the top of a base plate (1); A drive shaft (402) is provided at the bottom of the housing (401) and is used to drive the rotation of the connecting column (6).

4. The sweeper's rotating mop expansion mechanism according to claim 3, characterized in that, The top of the connecting column (6) is provided with a plug-in groove, and the drive shaft (402) is inserted into the plug-in groove.

5. The sweeper's rotating mop expansion mechanism according to claim 3, characterized in that, The top of the base plate (1) is fixedly connected to a first round rod (7), and the bottom of the housing (401) is provided with a slot, and the first round rod (7) is inserted into the slot.

6. The sweeper's rotating mop expansion mechanism according to claim 5, characterized in that, The driving component (5) includes: A cam (506) is disposed on one side of the outer wall of the housing (401); The meshing gear (505) has its top end fixedly connected to the bottom end of the cam (506), and the top end of the base plate (1) is fixedly connected to a second round rod (9) for mounting the meshing gear (505). A driving component is disposed on one side of the meshing gear (505) and is used to drive the rotation of the meshing gear (505).

7. The sweeper's rotating mop expansion mechanism according to claim 6, characterized in that, The driving component includes: A drive motor (501) is disposed on one side of the cam (506); A worm gear (502) is sleeved on the outer wall of the output end of the drive motor (501); A linkage component is disposed between the worm (502) and the meshing gear (505).

8. The sweeper's rotating mop expansion mechanism according to claim 7, characterized in that, The linkage component includes: Helical teeth (503) mesh with the worm (502); The linkage gear (504) has its bottom end fixedly connected to the top end of the helical tooth (503), and the linkage gear (504) meshes with the meshing gear (505).

9. The sweeper's rotating mop expansion mechanism according to claim 8, characterized in that, The top ends of the helical gear (503) and the linkage gear (504) are respectively provided with circular grooves, and the first circular rod (7) is inserted into the inside of the circular grooves.

10. The sweeper's rotating mop expansion mechanism according to claim 5, characterized in that, The torsion spring (8) is sleeved on the outer wall of the first round rod (7), and one end of the torsion spring (8) is fixedly connected to the outer wall of the housing (401).

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