Anti-winding device, driving assembly and wheel assembly

Abstract

The utility model provides an anti-winding device. The anti-winding device comprises a base and a driving seat, the base comprises a base surface, a through hole and a first matching part, the through hole is located in the center of the base surface, and a transmission shaft can penetrate through the through hole, so that the transmission shaft can freely rotate in the through hole; the first matching part is arranged on the surface of the base at least around the through hole; the driving seat comprises a driving seat surface, a connecting hole and a second matching part, and the connecting hole is located in the center of the driving seat surface and configured to be capable of being connected with the tail end of the transmission shaft; the second matching part is arranged on the surface of the driving seat at least around the connecting hole; the base and the driving seat can be coaxially assembled, so that the first matching part and the second matching part are matched with each other, a closed space is formed between the surface of the base and the surface of the driving seat, and at least one part of the transmission shaft is closed by the closed space. The utility model further provides a driving assembly and a wheel assembly.

Description

Technical Field

[0001] The present disclosure relates to an anti-winding device, a driving assembly and a wheel assembly. Background Art

[0002] With the continuous advancement of computer and artificial intelligence technology, smart lawn mowers similar to smart robots have begun to slowly enter people's lives. Compared with traditional lawn mowers, smart lawn mowers can automatically recharge, automatically avoid rain, automatically walk, prevent collisions, and automatically complete the work of mowing the lawn, etc., without excessive human operation and control.

[0003] Since the smart lawn mower works in an outdoor environment, it is easy for ropes, grass clippings and other filaments to be entangled on the grass. The drive wheel and the machine body rotate relative to each other and are fixed to the output shaft through a connector (flange, etc.). When the filaments are entangled in the connection between the drive wheel and the output shaft, it will cause the machine power consumption to increase at the least, and in serious cases, it will cause the machine to be unable to move normally.

[0004] Some of the existing smart lawn mowers do not have anti-winding devices. Although some smart lawn mowers are designed with anti-winding structures, part of the enclosure is set on the driving wheel and is designed on the outside. When the driving wheel rotates, there is still a risk of entanglement of filaments.

[0005] Therefore, it is necessary to design an anti-entanglement structure to avoid or reduce the entanglement of the filaments at the driving wheel and reduce the failure rate of the intelligent lawn mower. Utility Model Content

[0006] In order to solve one of the above technical problems, the present disclosure provides an anti-winding device, a driving assembly and a wheel assembly.

[0007] According to one aspect of the present disclosure, there is provided an anti-winding device, which includes a base and a driving seat;

[0008] The base comprises:

[0009] Base surface;

[0010] a through hole, the through hole being located at the center of the surface of the base and configured for the transmission shaft to pass through, so that the transmission shaft can freely rotate in the through hole; and

[0011] a first matching portion, the first matching portion being arranged on the surface of the base at least around the through hole;

[0012] The drive seat comprises:

[0013] Drive seat surface;

[0014] a connecting hole, the connecting hole being located at the center of the surface of the driving seat and configured to be able to connect to the end of the transmission shaft; and

[0015] a second matching portion, the second matching portion being arranged on the surface of the driving seat at least around the connecting hole;

[0016] The base and the drive seat can be coaxially assembled so that the first mating portion and the second mating portion cooperate with each other to form a closed space between the base surface and the drive seat surface, and at least a portion of the transmission shaft is enclosed by the closed space.

[0017] According to the anti-winding device of at least one embodiment of the present disclosure, the base further includes a third matching portion, and the third matching portion is arranged on the surface of the base at least around the first matching portion.

[0018] According to the anti-winding device of at least one embodiment of the present disclosure, the first matching portion includes a first baffle extending outward from the base surface.

[0019] According to the anti-winding device of at least one embodiment of the present disclosure, the second mating portion includes a first groove extending inwardly from the surface of the driving seat, and the first groove is mated with the first baffle.

[0020] According to the anti-winding device of at least one embodiment of the present disclosure, the first baffle is embedded in the first groove in a clearance fit manner to form a closed space between the base surface and the drive seat surface.

[0021] According to the anti-winding device of at least one embodiment of the present disclosure, the first matching portion includes a second groove extending inwardly from the base surface.

[0022] According to the anti-winding device of at least one embodiment of the present disclosure, the second matching portion includes a second baffle extending outward from the surface of the driving seat.

[0023] According to the anti-winding device of at least one embodiment of the present disclosure, the second baffle is embedded in the second groove in a clearance fit manner to form a closed space between the base surface and the drive seat surface.

[0024] According to the anti-winding device of at least one embodiment of the present disclosure, the third matching part includes a third baffle extending outward from the base surface, and the length of the third baffle extending outward from the base surface is greater than or equal to the length of the first matching part extending outward from the base surface.

[0025] According to the anti-winding device of at least one embodiment of the present disclosure, the driving seat also includes a seat body and an end opposite to the seat body, the seat body is used to cooperate with the component to be driven, and the end is used to be fixedly connected to the component to be driven.

[0026] According to another aspect of the present disclosure, a drive assembly is provided, which includes the above-mentioned anti-winding device.

[0027] According to at least one embodiment of the present disclosure, the drive assembly further includes:

[0028] a housing; and

[0029] A transmission shaft, the transmission shaft is connected to the rotor of the drive assembly and is used to transmit the torque of the rotor outward; and at least a portion of the transmission shaft extends outward from the housing;

[0030] Wherein, the base is detachably fixed to the shell; and the driving seat is detachably fixed to the transmission shaft.

[0031] According to another aspect of the present disclosure, a wheel assembly is provided, which includes the above-mentioned drive assembly.

[0032] The wheel assembly according to at least one embodiment of the present disclosure further includes:

[0033] Wheel body;

[0034] A rubber wheel, the rubber wheel being formed on the radially outer side of the wheel body;

[0035] Wherein, the driving assembly can drive the wheel body to rotate.

[0036] According to the wheel assembly of at least one embodiment of the present disclosure, the wheel body includes an axial inner surface, and a gap is provided between the third mating portion of the drive assembly and the axial inner surface.

[0037] According to the wheel assembly of at least one embodiment of the present disclosure, the axial inner surface includes a receiving groove, and the receiving groove is used to receive the driving seat.

[0038] According to the wheel assembly of at least one embodiment of the present disclosure, the axial inner surface includes a fourth matching portion, and the fourth matching portion and the third matching portion cooperate with each other to form a closed area between the base and the axial inner surface, and the closed space is located in the closed area.

[0039] According to the wheel assembly of at least one embodiment of the present disclosure, the fourth mating portion includes a fourth baffle extending outward from the axial inner surface, and the fourth baffle is located on the inner side of the third mating portion of the base and is arranged around the accommodating groove.

[0040] According to the wheel assembly of at least one embodiment of the present disclosure, the fourth matching portion includes a second groove extending inwardly from the axial inner surface, and a gap is provided between a distal end of the third matching portion of the base and a bottom surface of the second groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0042] Figure 1 It is a schematic structural diagram of an anti-winding device according to one embodiment of the present disclosure.

[0043] Figure 2 It is a schematic structural diagram of a base according to an embodiment of the present disclosure.

[0044] Figure 3 It is a schematic structural diagram of a driving seat according to an embodiment of the present disclosure.

[0045] Figure 4 It is a schematic cross-sectional structural diagram of an anti-winding device according to one embodiment of the present disclosure.

[0046] Figure 5 is a schematic structural diagram of a drive assembly according to one embodiment of the present disclosure.

[0047] Figure 6 It is a schematic structural diagram of a wheel assembly according to one embodiment of the present disclosure.

[0048] Figure 7 It is a schematic cross-sectional structural diagram of a wheel assembly according to one embodiment of the present disclosure.

[0049] The specific reference numerals in the figure are:

[0050] 100 base

[0051] 101 base surface

[0052] 102 through hole

[0053] 103 first matching part

[0054] 104 third matching part

[0055] 200 drive seat

[0056] 201 drive seat surface

[0057] 202 connection hole

[0058] 203 second matching part

[0059] 204 seat body

[0060] 205 end

[0061] 300 drive components

[0062] 301 Shell

[0063] 302 drive shaft

[0064] 400 wheel assembly

[0065] 401 wheel body

[0066] 402 rubber wheel

[0067] 403 axial inner surface

[0068] 404 fourth matching part. DETAILED DESCRIPTION

[0069] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0070] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0071] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged in addition without departing from the technical concept of the present disclosure.

[0072] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0073] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0074] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0075] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0076] Figure 1 It is a schematic structural diagram of an anti-winding device according to one embodiment of the present disclosure. Figure 2 It is a schematic structural diagram of a base according to an embodiment of the present disclosure. Figure 3 It is a schematic structural diagram of a driving seat according to an embodiment of the present disclosure. Figure 4It is a schematic cross-sectional structural diagram of an anti-winding device according to one embodiment of the present disclosure.

[0077] like Figures 1 to 4 As shown, the anti-winding device of the present disclosure includes components such as a base 100 and a driving seat 200 .

[0078] like Figure 2 As shown, the base 100 includes: a base surface 101, a through hole 102 and a first matching portion 103. The base surface 101 may be a surface of the base 100 close to the drive seat 200, and a through hole is provided at the center of the base surface 101. The through hole 102 is configured to allow a transmission shaft 302 of a drive device to pass through, so that the transmission shaft 302 can rotate freely in the through hole 102. In the present disclosure, the cross section of the transmission shaft 302 may be circular, square or other shapes, and the present disclosure is not limited thereto. The first matching portion 103 is provided on the base surface 101 at least around the through hole 102.

[0079] The drive seat 200 includes: a drive seat surface 201, a connection hole 202 and a second matching portion 203. The drive seat surface 201 may be the surface of the drive seat 200 close to the base 100. A connection hole 202 is provided at the center of the drive seat surface 201, and the connection hole 202 is configured to be connected to the end of the transmission shaft 302 in an interference fit manner, so that the transmission shaft 302 has a transmission connection relationship with the drive seat 200. In particular, when the transmission shaft 302 is a square or other non-circular shape, the connection hole 202 may have substantially the same shape as the transmission shaft 302. In the present disclosure, the second matching portion 203 is provided on the drive seat surface 201 at least around the connection hole 202.

[0080] The base 100 and the drive seat 200 can be coaxially assembled so that the first mating portion 103 and the second mating portion 203 cooperate with each other to form a closed space between the base surface 101 and the drive seat surface 201, and at least a portion of the transmission shaft 302 is enclosed by the closed space.

[0081] Therefore, compared with the structure in the prior art, by setting the first matching part 103 and the second matching part 203 on the outside of the transmission shaft 302, when the driving wheel rotates, the anti-entanglement structure is in a relatively static state, so the filaments on the grass will not be entangled in the connection between the driving wheel and the output shaft, thereby reducing the failure rate of the smart lawn mower.

[0082] The base 100 further includes a third matching portion 104 , which is disposed on the base surface 101 at least around the first matching portion 103 .

[0083] In the present disclosure, one of the first matching portion 103 and the second matching portion 203 is formed as a baffle or a groove, and the other is formed as a groove or a baffle; specifically, Figure 2 As shown, the first matching portion 103 includes a first baffle extending outward from the base surface 101; the second matching portion 203 includes a first groove extending inward from the drive seat surface 201, and the first groove matches the first baffle.

[0084] More specifically, the first baffle is embedded in the first groove in a clearance fit manner to form a closed space between the base surface 101 and the drive seat surface 201 .

[0085] Regarding the clearance fit, specifically: the end of the first baffle forms a first gap with the bottom surface of the first groove, so that when the base 100 and the drive seat 200 rotate relative to each other, the fit between the first baffle and the first groove will not affect the relative rotation. The end of the first baffle forms a second gap with the outer side surface of the first groove, and the end of the first baffle forms a third gap with the inner side surface of the first groove, and the second gap is smaller than the third gap.

[0086] On the other hand, the first mating portion 103 includes a second groove extending inward from the base surface 101; the second mating portion 203 includes a second baffle extending outward from the drive seat surface 201; the second baffle is embedded in the second groove in a clearance fit manner to form a closed space between the base surface 101 and the drive seat surface 201.

[0087] Similarly, regarding the clearance fit, specifically: the end of the second baffle plate forms a first gap with the bottom surface of the second groove, so that when the base 100 and the drive seat 200 rotate relative to each other, the fit between the second baffle plate and the second groove will not affect the relative rotation. The end of the second baffle plate forms a second gap with the outer side surface of the second groove, and the end of the second baffle plate forms a third gap with the inner side surface of the second groove, and the second gap is smaller than the third gap.

[0088] like Figure 2 As shown, the third mating portion 104 includes a third baffle extending outward from the base surface 101, and the length of the third baffle extending outward from the base surface 101 is greater than or equal to the length of the first mating portion 103 extending outward from the base surface 101. Accordingly, the third mating portion 104 can at least cover a portion of the drive seat 200.

[0089] The driving seat 200 further includes a seat body 204 and an end 205 opposite to the seat body 204 . The seat body 204 is used to cooperate with the component to be driven, and the end 205 is used to be fixedly connected to the component to be driven.

[0090] Figure 5 is a schematic structural diagram of a drive assembly 300 according to an embodiment of the present disclosure.

[0091] like Figure 5 As shown, the drive assembly 300 of the present disclosure may include the above-mentioned anti-winding device. Preferably, the drive assembly 300 of the present disclosure may also include a housing 301 and a transmission shaft 302. The transmission shaft 302 is connected to the rotor of the drive assembly 300 for transmitting the torque of the rotor outward; and at least part of the transmission shaft 302 extends outward from the housing 301, so that the drive assembly 300 is formed as a motor.

[0092] Correspondingly, the base 100 is detachably fixed to the housing 301 ; the driving seat 200 is detachably fixed to the transmission shaft 302 .

[0093] Figure 6 is a schematic structural diagram of a wheel assembly 400 according to an embodiment of the present disclosure. Figure 7 It is a schematic cross-sectional structural diagram of a wheel assembly according to one embodiment of the present disclosure.

[0094] like Figure 6 and Figure 7 As shown, the wheel assembly 400 can include the above-mentioned driving assembly 300. More preferably, the wheel assembly 400 can also include a wheel body 401 and a rubber wheel 402; the driving assembly 300 can drive the wheel body 401 to rotate; the rubber wheel 402 is formed on the radial outer side of the wheel body 401, thereby forming the wheel assembly of the autonomous lawn mower robot (i.e., smart lawn mower) disclosed in the present invention.

[0095] The wheel body 401 includes an axial inner surface 403 , and a gap is provided between the third matching portion 104 of the driving assembly 300 and the axial inner surface 403 . The setting of the gap prevents the base 100 from interfering with the rotation of the wheel body 401 .

[0096] In the present disclosure, the axial inner surface 403 includes a receiving groove, and the receiving groove is used to receive the drive seat 200. Specifically, the seat body 204 of the drive seat 200 can be disposed in the receiving groove, and the drive seat 200 can rotate together with the wheel body 401.

[0097] The axial inner surface 403 includes a fourth matching portion 404 . The fourth matching portion 404 and the third matching portion 104 match each other to form a closed area between the base 100 and the axial inner surface 403 . The closed space is located in the closed area.

[0098] That is to say, by setting the fourth matching portion 404, a closed area can be added outside the first matching portion 103, and the closed area has a larger diameter or size, so that the wheel assembly of the present disclosure has a better anti-winding effect.

[0099] The fourth matching portion 404 includes a fourth baffle extending outward from the axial inner surface 403 . The fourth baffle is located inside the third matching portion 104 (third baffle) of the base 100 and is disposed around the receiving groove.

[0100] In the present disclosure, the fourth matching portion 404 may also include a second groove extending inward from the axial inner surface 403, and there is a gap between the end of the third matching portion 104 (third baffle) of the base 100 and the bottom surface of the second groove, so that the base 100 will not affect the rotation of the wheel body 401.

[0101] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0102] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0103] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. An anti-winding device, characterized in that: Including a base and a driving seat; The base comprises: Base surface; a through hole, the through hole being located at the center of the surface of the base and configured for the transmission shaft to pass through, so that the transmission shaft can freely rotate in the through hole; and a first matching portion, the first matching portion being arranged on the surface of the base at least around the through hole; The drive seat comprises: Drive seat surface; a connecting hole, the connecting hole being located at the center of the surface of the driving seat and configured to be able to connect to the end of the transmission shaft; and a second matching portion, the second matching portion being arranged on the surface of the driving seat at least around the connecting hole; The base and the drive seat can be coaxially assembled so that the first mating portion and the second mating portion cooperate with each other to form a closed space between the base surface and the drive seat surface, and at least a portion of the transmission shaft is enclosed by the closed space.

2. The anti-winding device according to claim 1, characterized in that: The base further includes a third matching portion, which is disposed on the surface of the base at least around the first matching portion.

3. The anti-winding device according to claim 1, characterized in that: The first mating portion includes a first stopper extending outwardly from the base surface.

4. The anti-winding device according to claim 3, characterized in that: The second matching portion includes a first groove extending inwardly from the surface of the driving seat, and the first groove matches with the first baffle.

5. The anti-winding device according to claim 4, characterized in that: The first baffle is embedded in the first groove in a clearance fit manner to form a closed space between the base surface and the drive seat surface.

6. The anti-winding device according to claim 1, characterized in that: The first mating portion includes a second groove extending inwardly from the base surface.

7. The anti-winding device according to claim 6, characterized in that: The second mating portion includes a second stopper extending outwardly from the driving seat surface.

8. The anti-winding device according to claim 7, characterized in that: The second baffle is embedded in the second groove in a clearance fit manner to form a closed space between the base surface and the drive seat surface.

9. The anti-winding device according to claim 2, characterized in that: The third matching portion includes a third stopper extending outward from the base surface, and a length of the third stopper extending outward from the base surface is greater than or equal to a length of the first matching portion extending outward from the base surface.

10. The anti-winding device according to claim 1, characterized in that: The driving seat also includes a seat body and a terminal end opposite to the seat body, the seat body is used to cooperate with the component to be driven, and the terminal end is used to be fixedly connected to the component to be driven.

11. A drive assembly, characterized in that: The invention comprises the anti-winding device according to any one of claims 1 to 10.

12. The drive assembly according to claim 11, characterized in that Also includes: case; as well as A transmission shaft, the transmission shaft is connected to the rotor of the driving assembly and is used to transmit the torque of the rotor outward; and at least a portion of the transmission shaft extends outwardly from the housing; Wherein, the base is detachably fixed to the shell; and the driving seat is detachably fixed to the transmission shaft.

13. A wheel assembly, characterized in that: Comprising the drive assembly according to claim 11 or 12.

14. The wheel assembly according to claim 13, characterized in that Also includes: Wheel body; A rubber wheel, the rubber wheel being formed on the radially outer side of the wheel body; Wherein, the driving assembly can drive the wheel body to rotate.

15. The wheel assembly according to claim 14, characterized in that The wheel body comprises an axial inner surface, and a gap is provided between the third matching portion of the driving assembly and the axial inner surface.

16. The wheel assembly according to claim 15, characterized in that The axial inner surface includes a receiving groove, and the receiving groove is used to receive the driving seat.

17. The wheel assembly according to claim 16, characterized in that The axial inner surface includes a fourth matching portion, and the fourth matching portion and the third matching portion match each other to form a closed area between the base and the axial inner surface, and the closed space is located in the closed area.

18. The wheel assembly according to claim 17, characterized in that The fourth matching portion includes a fourth baffle extending outward from the axial inner surface. The fourth baffle is located on the inner side of the third matching portion of the base and is arranged around the accommodating groove.

19. The wheel assembly according to claim 17, characterized in that The fourth matching portion includes a second groove extending inwardly from the axial inner surface, and a gap is provided between a terminal end of the third matching portion of the base and a bottom surface of the second groove.

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