Swing mechanism of sweeper

Abstract

The utility model discloses a swing mechanism of a sweeper, which comprises a central column (100), a fan-shaped movable plate (200) rotationally arranged on the central column (100), a torsion spring (300) sleeved on the central column (100), a rotating piece (500) matched with the fan-shaped movable plate (200) and a driving motor (400) for driving the rotating piece (500) to rotate, wherein a free end of the torsion spring (300) is fixed on the fan-shaped movable plate (200). The driving motor drives the rotating piece connected with the sweeping device, so that the sweeping device extends out of the edge or the outer part of the sweeper to sweep areas close to wall surfaces, table legs and the like, and the sweeping width and the sweeping effect are improved; when the sweeper cannot avoid an obstacle due to problems of the sweeper or the angle and visual angle of the sensor, the fan-shaped movable plate, the driving motor and the rotating piece rotate under the action of external force when the sweeping device is in contact with the obstacle, and the sweeping device or the sweeper is prevented from being damaged or damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of household intelligent cleaning appliances, in particular to a swing mechanism of a sweeping machine. Background Art

[0002] As people's living standards continue to improve, the application of smart home appliances is becoming more and more extensive, and has a very broad market prospect. A sweeper, also known as an automatic sweeper, smart vacuum cleaner, robot vacuum cleaner, etc., is a type of smart home appliance that can automatically clean the floor in the room with a certain degree of artificial intelligence. Generally, it uses brushing and vacuuming to absorb the debris on the ground into its own garbage collection box, thereby completing the function of floor cleaning.

[0003] At present, a sweeping machine mainly includes a main frame, a walking device, a sensing device and a cleaning device. When the size of this sweeping robot is certain, its cleaning width is low, resulting in low cleaning efficiency and poor cleaning effect along the edges, especially close to walls and table corners. In addition, since the number of sensing devices installed on the sweeping machine is small, the sensing range of the sweeping machine is limited. When encountering some obstacles, the sensor may not be able to control the sweeping machine's cleaning device to turn and avoid the obstacle due to problems with the sensor's angle of view or the sweeping machine's own problems. If the sweeping machine cannot avoid the obstacle, it will directly come into hard contact with the obstacle, causing damage to the sweeping machine.

[0004] Therefore, the prior art needs to be improved and enhanced. Utility Model Content

[0005] The utility model is to overcome the deficiencies in the above situation and aims to provide a technical solution that can solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0007] A sweeping machine swing mechanism includes a center column, a fan-shaped movable plate rotatably mounted on the center column, a torsion spring sleeved on the center column, a rotating member matched with the fan-shaped movable plate, and a driving motor driving the rotating member to rotate, wherein a free end of the torsion spring is fixed on the fan-shaped movable plate.

[0008] As a further optimization of the present invention, the central column is arranged on a bottom plate, and the bottom plate has a fan-shaped activity space, and the fan-shaped activity plate can swing in the fan-shaped activity space.

[0009] As a further optimization of the utility model, a first positioning column is provided on the fan-shaped movable plate, a free end of the torsion spring is fixed on the first positioning column, and a second positioning column is provided on the bottom plate, and the other free end of the torsion spring is fixed on the second positioning column.

[0010] As a further optimization of the utility model, the rotating member includes a rotating axis, a first gear mounted on the rotating axis, and a second gear mounted on the rotating axis, wherein the first gear cooperates with the driving motor, and the second gear cooperates with the fan-shaped movable plate.

[0011] As a further optimization of the utility model, a worm is mounted on the output shaft of the driving motor, and the worm is meshed with the first gear.

[0012] As a further optimization of the utility model, a sector-shaped rack is provided on the surface of the sector-shaped movable plate facing the drive motor at the sector-shaped edge, and the sector-shaped rack is meshed with the second gear.

[0013] As a further optimization of the present invention, the second gear is fixedly mounted on the rotating axis, and the first gear is movably mounted on the rotating axis, wherein a plurality of ratchets are arranged at intervals on the same circumference of the end face of the second gear facing the first gear, and the ratchet has two side faces, one of which is a straight stop face for locking, and the other side is an inclined face for sliding, and a plurality of grooves matching the ratchets are arranged on the end face of the first gear facing the second gear.

[0014] As a further optimization of the utility model, the driving motor and the rotating member are mounted on a housing, and the housing is rotatably mounted on the central column.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Due to the adoption of the above-mentioned structural design, that is, the driving motor drives the rotating part connected to the cleaning device, so that the cleaning device extends out of the edge or outside of the sweeper to clean areas close to walls, table legs, etc., thereby improving the cleaning width and cleaning effect; when the sweeper cannot avoid obstacles due to its own problems or sensor angle problems, the cleaning device contacts the obstacle and is acted upon by external force, and the fan-shaped movable plate, the driving motor and the rotating part rotate to prevent the cleaning device or the sweeper from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a schematic diagram of the first state structure of an embodiment of the utility model;

[0018] Attached Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model after removing the housing;

[0019] Attached Figure 3 This is a schematic diagram of the exploded structure of the rotating member of the embodiment of the utility model;

[0020] Attached Figure 4This is a schematic diagram of the second state structure of an embodiment of the utility model.

[0021] The numbers in the figure are:

[0022] 100-center column, 200-fan-shaped movable plate, 300-torsion spring, 400-drive motor, 500-rotating part, 600-housing;

[0023] 101- bottom plate;

[0024] 1011- fan-shaped activity space, 1012- second positioning column;

[0025] 201-first positioning column, 202-sector-shaped rack;

[0026] 501-rotation axis, 502-first gear, 503-second gear;

[0027] 401-worm;

[0028] 5031-pawl;

[0029] 5021-groove. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] To facilitate understanding of this embodiment, a sweeper swing mechanism disclosed in the embodiment of the utility model is first introduced in detail.

[0032] Example:

[0033] like Figure 1-4As shown, the present application discloses a sweeping machine swing mechanism, comprising a central column 100, a fan-shaped movable plate 200 rotatably mounted on the central column 100, a torsion spring 300 mounted on the central column 100, a rotating member 500 matched with the fan-shaped movable plate 200, and a driving motor 400 for driving the rotating member 500 to rotate. Specifically, the central column 100 is arranged on a bottom plate 101, which is a fan-shaped bottom plate fixed to the main structure of the sweeping machine. 01 has a fan-shaped movable space 1011, and the fan-shaped movable plate 200 can swing in the fan-shaped movable space 1011; a first positioning column 201 is arranged on the fan-shaped movable plate 200, and a free end of the torsion spring 300 is fixed on the first positioning column 201; a second positioning column 1012 is arranged on the bottom plate 101, and the other free end of the torsion spring 300 is fixed on the second positioning column 1012; a cleaning device, such as a sweeping brush, a mop, etc., is connected to the bottom of the rotating member 500.

[0034] Since the driving motor 400 is arranged horizontally, the driving motor 400 cooperates with the fan-shaped movable plate 200 through the rotating member 500. Specifically, the rotating member 500 includes a rotating axis 501, a first gear 502 mounted on the rotating axis 501, and a second gear 503 mounted on the rotating axis. A worm 401 is mounted on the output shaft of the driving motor 400, and the worm 401 is meshed with the first gear 502. A fan-shaped rack 202 is arranged on the surface of the fan-shaped movable plate 200 facing the driving motor 400 at the fan-shaped edge, and the fan-shaped rack 202 is meshed with the second gear 503.

[0035] Through the above-mentioned structural design, when the present application is cleaning areas close to two walls, table legs, etc., when the drive motor 400 is controlled to rotate forward, the drive rotating part 500 is driven to rotate, and the drive motor 400 and the rotating part 500 are rotated from the right side to the left side along the fan-shaped rack 202, so that the cleaning device extends out of the edge or outside of the sweeper for cleaning, which not only increases the cleaning width, but also improves the cleaning effect; when the drive motor 400 is controlled to rotate reversely, the drive rotating part 500 is driven to rotate, and the rotating part 500 is rotated from the left side to the right side along the fan-shaped rack 202; that is, by controlling the drive motor 400, the drive motor 400 and the rotating part 500 can be moved or stopped at any position within a predetermined range.

[0036] When the sweeper is unable to avoid an obstacle due to its own problems, such as program problems or sensor angle problems, the cleaning device is subjected to external force when in contact with the obstacle. When the external force is greater than the tension of the torsion spring 300, the fan-shaped movable plate 200, the drive motor 400 and the rotating part 500 rotate and retract into the sweeper to prevent the cleaning device or the sweeper from being damaged.

[0037] like Figure 1 and Figure 4 As shown, at this time, the driving motor 400 and the rotating member 500 are in the initial position. During operation, when the driving motor 400 is controlled to rotate forward, the driving rotating member 500 is rotated, and the driving motor 400 and the rotating member 500 rotate from the right side to the left side along the fan-shaped rack 202. During this process, the tension of the torsion spring 300 is greater than the reverse force generated when the rotating member 500 moves to the left side; when the cleaning device is subjected to an external force to the right, and the external force is greater than the tension of the torsion spring 300, the fan-shaped movable plate 200, the driving motor 400 and the rotating member 500 swing to the right; when the external force disappears, the fan-shaped movable plate 200, the driving motor 400 and the rotating member 500 will swing to the left side under the action of the torsion spring 300.

[0038] As a preferred method of this embodiment, Figure 3 As shown, the second gear 503 is fixedly mounted on the rotating axis 501, and the first gear 502 is movably mounted on the rotating axis 501, wherein a plurality of ratchet pawls 5031 are arranged at intervals on the same circumference of the end face of the second gear 503 facing the first gear 502, and the ratchet 5031 has two side faces, one of which is a straight stop face for locking, and the other side is an inclined face for sliding, and a plurality of grooves 5021 matching the ratchet pawls are arranged on the end face of the first gear 502 facing the second gear 503. Through the above-mentioned structural design, the driving motor 400 drives the first gear 502 when rotating forward, and one side of the groove 5021 of the first gear 502 is subjected to force acting on the straight stop surface of the pawl 5031 of the second gear 503. Under the action of the straight stop surface of the pawl 5031, the first gear 502 drives the second gear 503 to move along the fan-shaped rack 202; the driving motor 400 drives the first gear 502 when rotating reversely, and the other side of the groove 5021 of the first gear 502 is subjected to force acting on the inclined surface of the second gear 503. Although the other side of the groove 5021 of the first gear 502 cooperates with the inclined surface of the second gear 503, the torque output by the driving motor 400 still cannot slide the first gear 502 off the second gear 503, that is, the driving motor 400 can still drive the first gear 502 when rotating reversely. However, when the cleaning device is subjected to an external force to the left and the force is greater than a certain value, the first gear 502 and the second gear 503 slip due to the disengagement of the inclined surface of the second gear 503, causing the drive motor 400 and the rotating part 500 to move to the left with the external force, and stop moving when the external force disappears, thereby protecting the drive motor 400.

[0039] In a specific implementation, the driving motor 400 and the rotating member 500 are installed on a housing 600 , and the housing 600 is rotatably installed on the central column 100 , that is, the driving motor 400 and the rotating member 500 move together when the rotating member 500 is subjected to an external force.

[0040] In summary, the utility model solves the deficiencies in the prior art through the above-mentioned structural design, and has the characteristics of reasonable design, good cleaning effect, high safety, etc.

[0041] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A sweeping machine swing mechanism, characterized in that: The invention comprises a central column (100), a fan-shaped movable plate (200) rotatably mounted on the central column (100), a torsion spring (300) sleeved on the central column (100), a rotating member (500) matched with the fan-shaped movable plate (200), and a driving motor (400) driving the rotating member (500) to rotate, wherein a free end of the torsion spring (300) is fixed on the fan-shaped movable plate (200).

2. The sweeper swing mechanism according to claim 1, characterized in that: The central column (100) is arranged on a bottom plate (101), and the bottom plate (101) has a fan-shaped activity space (1011). The fan-shaped activity plate (200) can swing in the fan-shaped activity space (1011).

3. The sweeping machine swing mechanism according to claim 2, characterized in that: A first positioning column (201) is arranged on the fan-shaped movable plate (200), a free end of the torsion spring (300) is fixed on the first positioning column (201), a second positioning column (1012) is arranged on the bottom plate (101), and the other free end of the torsion spring is fixed on the second positioning column (1012).

4. The sweeping machine swing mechanism according to claim 1, characterized in that: The rotating member (500) includes a rotating shaft (501), a first gear (502) mounted on the rotating shaft (501), and a second gear (503) mounted on the rotating shaft (501), wherein the first gear (502) cooperates with the driving motor (400), and the second gear (503) cooperates with the fan-shaped movable plate (200).

5. The sweeping machine swing mechanism according to claim 4, characterized in that: A worm (401) is mounted on the output shaft of the driving motor (400), and the worm (401) is meshed with the first gear (502).

6. The sweeping machine swing mechanism according to claim 4, characterized in that: A sector-shaped rack (202) is provided on the surface of the sector-shaped movable plate (200) facing the driving motor (400) at the sector-shaped edge, and the sector-shaped rack (202) is meshed with the second gear (503).

7. The sweeping machine swing mechanism according to claim 4, characterized in that: The second gear (503) is fixedly mounted on the rotating shaft (501), and the first gear (502) is movably mounted on the rotating shaft (501), wherein a plurality of ratchet pawls (5031) are arranged at intervals on the same circumference of the end surface of the second gear (503) facing the first gear (502), and the ratchet pawls (5031) have two side surfaces, one of which is a straight stop surface for locking, and the other side is an inclined surface for sliding, and a plurality of grooves (5032) matching the ratchet pawls (5031) are arranged on the end surface of the first gear (502) facing the second gear (503).

8. The sweeping machine swing mechanism according to any one of claims 1 to 7, characterized in that: The driving motor (400) and the rotating member (500) are mounted on a housing (600), and the housing (600) is rotatably mounted on the central column (100).

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