Plane reciprocating swing structure and sweeping robot

Abstract

A plane reciprocating swing structure comprises a first gear, a transmission assembly, a first transmission piece, a limiting structure and a swing assembly. The first gear is driven to rotate, an annular groove is formed in the first end face of the first gear, and the center of the annular groove and the center of the first gear are eccentrically arranged. The transmission assembly is provided with a driven column and a first transmission part, the driven column is movably inserted into the annular groove and matched with the side wall of the annular groove in an abutting and pushing mode, the first transmission part is connected with the first transmission part, the first transmission part is provided with a rack, and the rack is matched with the limiting structure in a rotation stopping mode and can move in the length direction of the rack; the swing assembly is provided with a rotating shaft fixed relative to the swing assembly and a second gear fixed to the rotating shaft, and the second gear is meshed with the rack. The utility model further provides a sweeping robot using the plane reciprocating swing structure. Compared with the prior art, plane reciprocating swing can be achieved, and a corresponding sweeping robot can sweep corners.

Description

Technical Field

[0001] The utility model belongs to the technical field of planar reciprocating swing structures, and in particular relates to a planar reciprocating swing structure and a sweeping robot using the planar reciprocating swing structure. Background Art

[0002] Sweeping robots can automatically clean the floor, which makes people's lives more convenient. However, during the cleaning process, most sweeping robots are equipped with side brushes of fixed length, which usually cannot cover the corners or edge areas, resulting in the inability to effectively remove dust and debris in the area, reducing the cleaning efficiency. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a planar reciprocating swing structure.

[0004] To achieve the above objectives, the utility model discloses a planar reciprocating swing structure, comprising a first gear, a transmission assembly, a first transmission member, a limiting structure and a swing assembly;

[0005] The first gear is driven to rotate, and a first end surface thereof is provided with an annular groove, and the center of the annular groove is eccentrically arranged with the center of the first gear;

[0006] The transmission assembly comprises a driven column and a first transmission part, wherein the driven column is movably inserted into the annular groove and push-fits with the side wall of the annular groove, and the first transmission part is connected with the first transmission member, and a rack is provided on the first transmission member, and the rack is engaged with the limiting structure and can move along its length direction;

[0007] The swing assembly is provided with a rotating shaft fixed relatively thereto and a second gear fixed on the rotating shaft, and the second gear is meshed with the rack.

[0008] Preferably, the annular groove is a cam groove or a circular ring groove.

[0009] Preferably, the transmission assembly includes a rocker arm and a second transmission member, the rocker arm is provided with the driven column and the strip groove, the first end face located in the annular groove is provided with a limiting shaft, the strip groove is sleeved on the strip groove and can move relative to the limiting shaft, one end of the second transmission member is connected to the rocker arm, and the other end is the first transmission part.

[0010] Preferably, a buffer structure for energy absorption and deformation is provided on the second transmission member at a position between the two ends thereof.

[0011] Preferably, the buffer structure is spiral-shaped.

[0012] Preferably, the strip-shaped groove runs through the rocker rod.

[0013] Preferably, it further comprises a housing, wherein the first gear, the transmission assembly, the first transmission member, the limiting structure and the swing assembly are installed in the housing;

[0014] A mounting groove is provided in the housing, the rack and the second gear are mounted in the mounting groove, and the rack is pressed against the side wall of the mounting groove to achieve the anti-rotation fit and movement.

[0015] Preferably, the end of the first transmission member away from the transmission assembly is an annular mounting portion, the contour of the mounting portion is adapted to the mounting groove, and the mounting portion is slidably disposed in the mounting groove, and the inner side wall of the mounting portion is provided with the rack.

[0016] Preferably, the teeth of the second gear are distributed at a first angle along its circumference to form an incomplete gear.

[0017] The utility model also provides a sweeping robot using the planar reciprocating swing mechanism.

[0018] A sweeping robot comprises a planar reciprocating swinging structure and a side brush. The planar reciprocating swinging structure is any one of the planar reciprocating swinging structures described above, and the side brush is connected to the swinging assembly.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The planar reciprocating swing structure of the utility model is configured by eccentrically setting an annular groove on the end face of the gear. When the first gear rotates, the side wall of the annular groove acts on the driven column to drive the transmission assembly to move, and then drives the first transmission member to move; because the rack of the first transmission member is engaged with the limit structure to stop rotation, the rack can move along its length direction, and at this time the first transmission member can only move forward and backward along the length direction of the rack; driven by the forward and backward movement of the rack, the second gear rotates forward and backward, so that the second gear drives the swing assembly to swing back and forth through the rotating shaft. The swing of the swing assembly is achieved through the eccentric setting of the annular groove, the limit cooperation between the first transmission member and the limit structure, and the transmission of the transmission assembly, and the structure is simple and compact.

[0021] The sweeping robot using the above-mentioned planar reciprocating swing mechanism can effectively clean corners or edge areas, thereby improving the sweeping and cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the planar reciprocating swing structure of Example 1;

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the planar reciprocating swinging structure after removing part of the outer shell;

[0024] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the mid-plane reciprocating swing structure;

[0025] Figure 4 for Figure 2 A schematic diagram of the three-dimensional structure of the middle housing, the transmission assembly, and the first transmission member;

[0026] Figure 5 for Figure 4 Schematic diagram of the decomposition structure of the medium structure;

[0027] First gear 1; annular groove 11; limiting shaft 12;

[0028] Transmission assembly 2; swing rod 21; driven column 211; strip groove 212; second transmission member 22; first transmission part 221; buffer structure 222;

[0029] First transmission member 3; mounting portion 31; rack 32;

[0030] Swing assembly 4; rotating shaft 41; second gear 42;

[0031] Housing 5; mounting groove 51. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] A planar reciprocating swing structure, see Figure 1-Figure 5 , including a first gear 1, a transmission assembly 2, a first transmission member 3, a limiting structure and a swing assembly 4. The first gear 1 is driven to rotate. In this embodiment, the first gear 1 is driven to rotate by a motor and a gear set. The first end surface of the first gear 1 is provided with an annular groove 11, and the center of the annular groove 11 is eccentrically arranged with the center of the first gear 1.

[0034] The transmission assembly 2 has a driven column 211 and a first transmission part 221. The driven column 211 is movably inserted into the annular groove 11 and pushes against the side wall of the annular groove 11. The push-pull fit means that during the rotation of the first gear 1, the side wall of the annular groove 11 abuts against the driven column 211, and at the same time, the driven column 211 is pushed under the action of the side wall of the annular groove 11, thereby driving the transmission assembly 2 to move. The first transmission part 221 is connected to the first transmission member 3, so that the transmission assembly 2 can drive the first transmission member 3 to move. The first transmission member 3 is provided with a rack 32, which is engaged with the limiting structure and can move along its length direction. Therefore, the movement of the first transmission member 3 is a linear movement, and the movement direction is along its length direction. The swing assembly 4 is provided with a rotating shaft 41 fixed relatively to it and a second gear 42 fixed on the rotating shaft 41. The second gear 42 is meshed with the rack 32, so that the swing assembly 4 can swing under the action of the rack 32 through the second gear 42.

[0035] When the above planar reciprocating swing structure is used, when the first gear 1 rotates, the side wall of the eccentrically arranged annular groove 11 acts on the driven column 211 to drive the transmission component 2 to move, and the transmission component 2 drives the first transmission member 3 to move; because the rack 32 of the first transmission member 3 is engaged with the limiting structure to stop rotation, the rack 32 can move along its length direction. At this time, the first transmission member 3 can only move forward and backward along the length direction of the rack 32 under the combined action of the annular groove 11, the transmission component 2 and the limiting structure. Driven by the forward and backward movement of the rack 32, the second gear 42 rotates forward and backward, so that the second gear 42 drives the swing component 4 to swing back and forth through the rotating shaft 41. The above swinging of the swing component 4 is achieved through the eccentric setting of the annular groove 11, the limiting cooperation between the first transmission member 3 and the limiting structure, and the transmission of the transmission component 2, and the structure is simple and compact.

[0036] In this embodiment, the annular groove 11 is a cam groove or a circular ring groove, preferably a cam groove.

[0037] In this embodiment, the transmission assembly 2 includes a swing rod 21 and a second transmission member 22. The swing rod 21 is provided with the above-mentioned passive column 211 and strip groove 212. The first end face located in the annular groove 11 of the first gear 1 is provided with a limit shaft 12. The strip groove 212 is sleeved on the strip groove 212 and can move relative to the limit shaft 12. One end of the second transmission member 22 is connected to the swing rod 21, and the other end is a first transmission part 221. After the above swing rod 21 is installed on the first gear 1, after the first transmission member 3 acts on the swing rod 21 through the second transmission member 22, the movement of the swing rod 21 along the tangential direction is limited, so that it can only do the aforementioned forward and backward movement. Among them, the swing rod 21 cooperates with the annular groove 11 and the limit shaft 12 on the first gear 1 through the passive column 211 and the strip groove 212, which not only realizes the transmission, but also ensures the smoothness of the transmission process, reduces the jamming, and improves the use effect.

[0038] Among them, a buffer structure 222 for energy absorption and deformation is provided on the second transmission member 22 at a position between its two ends. Preferably, the buffer structure 222 is spiral, so that it not only provides buffering for the tangential direction of the rocker arm 21, making the transmission between the first gear 1 and the rocker arm 21 smoother, but also provides buffering for the first transmission member 3 along the front and rear directions, alleviates the problem of sticking, and improves the transmission effect.

[0039] The strip groove 212 passes through the rocker rod 21, which facilitates installation and improves the installation effect.

[0040] In this embodiment, the planar reciprocating swing structure further includes a housing 5, and the above-mentioned first gear 1, transmission assembly 2, first transmission member 3, limiting structure and swing assembly 4 are installed in the housing 5. A mounting groove 51 (i.e., the above-mentioned limiting structure) is provided in the housing 5, and the mounting groove 51 is provided with a through hole for the rotation shaft 41 to pass through, and the rack 32 and the second gear 42 are installed in the mounting groove 51, and the rack 32 is close to the side wall of the mounting groove 51 to achieve anti-rotation fit and movement.

[0041] Specifically, the end of the first transmission member 3 away from the transmission assembly 2 is an annular mounting portion 31, the profile of the mounting portion 31 is adapted to the mounting groove 51, and the mounting portion 31 is slidably arranged in the mounting groove 51, which can improve the assembly stability of the mounting portion 31 and the first transmission member 3. The inner side wall of the mounting portion 31 is provided with the above-mentioned rack 32, and the second gear 42 is located in the mounting portion 31. The overall structure is compact, which is conducive to reducing the volume, thereby reducing the volume of the planar swing mechanism.

[0042] Among them, the teeth of the second gear 42 are distributed at a first angle along its circumference to form an incomplete gear. This greatly reduces the structural volume on the basis of realizing the transmission between the first transmission member 3 and the second gear 42, which is beneficial to reducing the volume of the planar swing mechanism and has strong practicality.

[0043] Example 2

[0044] A sweeping robot comprises a planar reciprocating swinging structure and a side brush. The planar reciprocating swinging structure is the planar reciprocating swinging structure of embodiment 1, and the side brush is connected to the swinging component 4.

[0045] During normal use of the sweeping robot, the swing assembly 4 is located below the shell 5, which is the normal position of the sweeping robot during cleaning. When cleaning corners and the side brush cannot clean, the first gear 1 rotates under the action of the motor, thereby driving the first transmission member 3 to move forward and backward along the length direction of the rack 32 through the rocker arm 21 and the second transmission member 22. The rack 32 on the first transmission member 3 moves forward and backward to drive the second gear 42 to rotate forward and reverse, thereby driving the swing assembly 4 to rotate forward and reverse. At this time, the side brush on the swing assembly 4 can turn to the outside, thereby cleaning corners.

[0046] Among them, a structure capable of driving the side brush to rotate is provided in the swing assembly 4, which is the prior art and will not be described in detail here.

[0047] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A planar reciprocating swing structure, characterized in that: It includes a first gear, a transmission assembly, a first transmission member, a limiting structure and a swing assembly; The first gear is driven to rotate, and a first end surface thereof is provided with an annular groove, and the center of the annular groove is eccentrically arranged with the center of the first gear; The transmission assembly comprises a driven column and a first transmission part, wherein the driven column is movably inserted into the annular groove and push-fits with the side wall of the annular groove, and the first transmission part is connected with the first transmission member, and a rack is provided on the first transmission member, and the rack is engaged with the limiting structure and can move along its length direction; The swing assembly is provided with a rotating shaft fixed relatively thereto and a second gear fixed on the rotating shaft, and the second gear is meshed with the rack.

2. The planar reciprocating swing structure according to claim 1, characterized in that: The annular groove is a cam groove or a circular ring groove.

3. The planar reciprocating swing structure according to claim 1, characterized in that: The transmission assembly includes a rocker arm and a second transmission member, the rocker arm is provided with the driven column and the strip groove, the first end face located in the annular groove is provided with a limiting shaft, the strip groove is sleeved on the strip groove and can move relative to the limiting shaft, one end of the second transmission member is connected to the rocker arm, and the other end is the first transmission part.

4. The planar reciprocating swing structure according to claim 3, characterized in that: A buffer structure for energy absorption and deformation is provided on the second transmission member at a position between the two ends thereof.

5. The planar reciprocating swing structure according to claim 4, characterized in that: The buffer structure is in a spiral shape.

6. The planar reciprocating swing structure according to claim 3, characterized in that: The strip-shaped groove passes through the rocker rod.

7. The planar reciprocating swing structure according to claim 1, characterized in that: It also includes a housing, in which the first gear, the transmission assembly, the first transmission member, the limiting structure and the swing assembly are installed; A mounting groove is provided in the housing, the rack and the second gear are mounted in the mounting groove, and the rack is pressed against the side wall of the mounting groove to achieve the anti-rotation fit and movement.

8. The planar reciprocating swing structure according to claim 7, characterized in that: The end of the first transmission member away from the transmission assembly is an annular mounting portion, the contour of the mounting portion is adapted to the mounting groove, and the mounting portion is slidably disposed in the mounting groove. The inner side wall of the mounting portion is provided with the rack.

9. The planar reciprocating swing structure according to claim 8, characterized in that: The teeth of the second gear are distributed along its circumference at a first angle to form an incomplete gear.

10. A sweeping robot, characterized in that: It comprises a planar reciprocating oscillating structure and a side brush, wherein the planar reciprocating oscillating structure is the planar reciprocating oscillating structure according to any one of claims 1 to 9, and the side brush is connected to the oscillating component.

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