CN220009330U

CN220009330U - Autonomous working apparatus and tire thereof

Info

Publication number: CN220009330U
Application number: CN202321018982.8U
Authority: CN
Inventors: 刘亚南; 金俊杰
Original assignee: Zhejiang Baima Technology Co ltd
Current assignee: Zhejiang Baima Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-04-27
Publication date: 2023-11-14
Anticipated expiration: 2033-04-27
Also published as: CN220123451U; CN219938964U; CN219938963U; CN219938962U; CN220140192U; CN219893860U; CN220044195U

Abstract

The utility model discloses autonomous working equipment and a tire, wherein the tread of the tire is provided with at least one first convex group and at least two second convex groups, and the first convex group comprises at least one first bulge; at least two second protruding groups are arranged at intervals along the circumferential direction of the tire, at least one first protruding group is arranged between at least two adjacent second protruding groups, each second protruding group comprises at least two second protrusions and a connecting table arranged between the two adjacent second protrusions, and the radial size of the connecting table is smaller than that of the second protrusions. The connecting table forms a concave area relative to the two second bulges, so that the contact area between the second convex groups and the bottom surface is increased, and the grip of the tire is enhanced.

Description

Autonomous working apparatus and tire thereof

Technical Field

The utility model relates to the field of outdoor operation equipment, in particular to autonomous operation equipment and a tire thereof.

Background

Autonomous working devices, such as lawnmowers with a primary function of mowing the lawn, may save the user from complex and confusing labor and are becoming increasingly popular with users. The autonomous working device can automatically move in a preset working area and automatically execute a working task. In order to enable the autonomous operation device to complete automatic work more reliably and safely and provide better service for users, manufacturers continuously upgrade performance for the autonomous operation device, including configuring various functional modules for the autonomous operation device.

The autonomous operation equipment comprises a top cover, a chassis and a moving mechanism, wherein the moving mechanism is used for driving the chassis to move along the direction of a walking path and generally comprises wheels, a motor for driving the wheels to walk and the like. The chassis is connected to a moving mechanism for carrying equipment for operating a work, such as a cutterhead or a motor for cutting lawns or the like. The top cap covers the top on chassis, on the one hand can protect the chassis not receive the damage, on the other hand can also play pleasing to the eye effect.

In the prior art, the tire is insufficient to generate enough ground grabbing force in the walking process of the moving mechanism, so that the self-operating equipment is unstable in action, and the ground grabbing force of the tire needs to be enhanced to ensure the stable operation of the self-operating equipment.

Disclosure of Invention

The utility model aims to provide an autonomous working device and a tire thereof, wherein the tire has strong ground grabbing force and can enable the autonomous working device to be stable in shape.

To solve the above technical problems, embodiments of the present utility model provide a tire, a tread of which is provided with:

at least one first lobe set comprising at least one first lobe; and

at least two protruding group of second, at least two protruding group of second is followed the circumference interval arrangement of tire is equipped with at least one between the protruding group of at least two adjacent second the protruding group of first, the protruding group of second includes:

at least two second bulges which are arranged at intervals; and

and the radial dimension of the connecting table is smaller than that of the second protrusions.

In one embodiment, the radial dimension of the second protrusion is H1, the radial dimension of the connecting table is H2, and the ratio of H2 to H1 is in the range of 0.5 to 0.8.

In one embodiment, the ratio of H2 to H1 ranges from 0.6 to 0.7.

In one embodiment, the tread of the tire has a width dimension W0 in the axial direction;

each first convex group comprises two first bulges which are arranged at intervals along the axial direction, the center distance is W1, and the ratio of W1 to W0 is in the range of 0.6-0.8.

In one embodiment, the ratio of W1 to W0 ranges from 0.7 to 0.75.

In one embodiment, the second convex group includes two second protrusions and the connection platform between the two second protrusions, the two second protrusions are arranged along the axial direction, the connection platform is located at the center of the tire along the axial direction, the center distance between the two second protrusions is W2, and the ratio of W2 to W0 is in the range of 0.2-0.5.

In one embodiment, the ratio of W2 to W0 ranges from 0.3 to 0.4.

In one embodiment, the first raised tread and/or the second raised tread are each provided with a groove, the depth of the grooves in the radial direction ranging from 0.2mm to 0.8mm.

In one embodiment, the first projection tapers in axial dimension from the tread of the tire to the outside and the second projection tapers in axial dimension from the tread of the tire to the outside.

The utility model also relates to an autonomous working apparatus comprising a tyre as described above.

The tread of the tire is provided with the first convex groups and the second convex groups, wherein the connecting table of the second convex groups forms a concave area relative to the two second bulges, so that the contact area between the second convex groups and the bottom surface is increased, and the grip of the tire is enhanced.

Drawings

Fig. 1 is a perspective view of an autonomous working apparatus of an embodiment of the present utility model.

Fig. 2 is a perspective view of the tire of the embodiment of fig. 1.

Fig. 3 is a side view of the tire of the embodiment of fig. 2.

FIG. 4 is a cross-sectional view of the tire of the embodiment of FIG. 3 taken along line A-A.

FIG. 5 is a cross-sectional view of the tire of the embodiment of FIG. 3 taken along line B-B.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present utility model. However, the technical solutions claimed in the claims of the present utility model can be realized without these technical details and various changes and modifications based on the following embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

The following detailed description of various embodiments of the present utility model will be provided in connection with the accompanying drawings to provide a clearer understanding of the objects, features and advantages of the present utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present utility model, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

The present utility model relates to a tire 1, which tire 1 can be applied to various autonomous working apparatuses 100, such as a robot that can autonomously move within a preset area and perform a specific work, typically an intelligent sweeper or cleaner that performs a cleaning work, or an intelligent mower that performs a mowing work, or the like. An autonomous working apparatus 100 and a tire 1 thereof according to an embodiment of the present utility model are described in detail below with reference to the accompanying drawings.

The tyre 1 is annular and the tread 11 of the tyre 1 is provided with at least one first set 12 and at least two second sets 13. In the embodiment shown in fig. 2, the tread 11 is provided with a plurality of first convex groups 12 and a plurality of second convex groups 13, and the plurality of first convex groups 12 and the plurality of second convex groups 13 are alternately arranged at uniform intervals in the circumferential direction of the tread 11. It should be understood that the plurality of first convex groups 12 and the plurality of second convex groups 13 may be arranged at intervals in other manners, for example, one or more second convex groups 13 are arranged between two first convex groups 12, or two or more first convex groups 12 are arranged between two second convex groups 13, and the arrangement manner of the first convex groups 12 and the second convex groups 13 is not limited in the present utility model.

Furthermore, in other embodiments, only one first cam group 12 and a plurality of second cam groups 13 may be provided, and the first cam group 12 may be located between any two adjacent second cam groups 13. In other embodiments, the tread 11 may be provided with a plurality of first convex groups 12 and two second convex groups 13, between which two second convex groups 13 one first convex group 12 may be provided, and the remaining first convex groups 12 may be arranged as desired. The present utility model is not limited to the number of the first cam groups 12 and the specific arrangement of the first cam groups 12 and the second cam groups 13.

In the embodiment shown in fig. 2, the plurality of first protrusion groups 12 are arranged at regular intervals in the circumferential direction of the tread 11, and each of the first protrusion groups 12 includes two first protrusions 121, and the two first protrusions 121 are arranged at intervals in the axial direction and near the circumferential edges of the tread 11 in the axial direction, respectively. Two first lugs 121 are each formed by the tread 11 extending radially away from the tire 1. It should be understood that, in other embodiments, the connection line between the two first protrusions 121 of the first protrusion set 12 may also be at a preset angle with respect to the axial direction, and the preset angle may be between 1 ° -30 ° or between 0 ° -90 °, i.e. the two first protrusions 121 need not be aligned along the axial direction, and the arrangement of the two first protrusions 121 is not limited.

The second convex groups 13 are also uniformly spaced along the circumferential direction of the tread 11 and are alternately spaced from the first convex groups 12 in the circumferential direction, i.e., one first convex group 12 is disposed between two adjacent second convex groups 13, and one second convex group 13 is disposed between two adjacent first convex groups 12. It should be understood that the manner in which the plurality of second convex groups 13 and the plurality of first convex groups 12 are alternately arranged is not strictly limited, as long as stable operation of the autonomous working apparatus 100 is facilitated.

It should be noted that, in order to ensure stable forward movement of the self-service working apparatus, the height dimension of the second protrusions 131 in the plurality of second protrusion groups 13 along the radial direction should be as consistent as possible with the height dimension of the plurality of first protrusions 121 along the radial direction.

Each of the second protrusion groups 13 includes a plurality of second protrusions 131 and a plurality of connecting lands 132, the plurality of second protrusions 131 being respectively arranged at intervals in the axial direction, each second protrusion 131 being respectively formed by an outer surface of the tread 11 extending radially away from the tire 1. The plurality of connection stages 132 are also arranged at intervals in the axial direction, and each connection stage 132 is located between two adjacent second protrusions 131. The connecting station 132 is likewise formed by the tread 11 extending radially away from the tyre 1. The connecting land 132 has a smaller radial dimension than the second protrusions 131, so that the tread of the connecting land 132 is recessed inward with respect to the two second protrusions 131, and the connecting land 132 and the second protrusions 131 form a rugged state. In the running process of the tire 1, the contact area and friction force between the tire 1 and the ground can be increased, so that the grip of the tire 1 is enhanced.

It should be understood that, in other embodiments, the connection line between the two second protrusions 131 of the second protrusion set 13 may also be at a preset angle with respect to the axial direction, and the preset angle may be between 1 ° -30 ° or between 0 ° -90 °, i.e. the two first protrusions 121 need not be aligned along the axial direction, and the arrangement manner of the two second protrusions 131 is not limited.

In the embodiment shown in fig. 2 and 3, each second protrusion group 13 includes two second protrusions 131 and one connecting land 132, the connecting land 132 being located at a middle position in the axial direction of the tread 11, and the two second protrusions 131 being located at both sides of the connecting land 132 in the axial direction. The two second protrusions 131 and the connecting table 132 located therebetween are integrally formed, each of which is formed by extending the table in the radial direction. It should be appreciated that in other embodiments, each second protrusion set 13 may also include a plurality of second protrusions 131 and a plurality of connection lands 132 located between two adjacent second protrusions 131, for example, three or four second protrusions 131 may be provided, and each connection land 132 is located between two adjacent second protrusions 131 without limiting the specific number of second protrusions 131 or connection lands 132.

Further, two second protrusions 131 in each second protrusion group 13 are located closer to the axial center position of the tread 11 than two first protrusions 121 in each first protrusion group 12, and two second protrusions 131 are located closer to both sides of the tread 11 in the axial direction. Specifically, as shown in fig. 3, the width dimension of the tread of the tire 1 in the axial direction is defined as W0, the two first protrusions 121 of each first protrusion group 12 are respectively adjacent to both sides of the tire 1 in the axial direction, and the center-to-center distance of the two first protrusions 121 is W1, and the ratio of W1 to W0 is preferably in the range of 0.6 to 0.8, optionally but not limited to 0.6, 0.7, 0.8, etc. More preferably, the ratio of W1 to W0 ranges from 0.7 to 0.75, and optionally includes, but is not limited to, 0.71, 0.72, 0.73, 0.74, or 0.75, etc.

Further, the center-to-center distance of the two second protrusions 131 in each second protrusion group 13 in the axial direction is W2, and the ratio of W2 to W0 ranges from 0.2 to 0.5, and may optionally include, but not limited to, 0.2, 0.3, 0.4, 0.5, and the like. More preferably, the ratio of W1 to W0 ranges from 0.3 to 0.4, and optionally includes, but is not limited to, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.39, 0.4, and the like.

In addition, the height dimension of the two second protrusions 131 in the radial direction is defined as H1, the height dimension of the connection stage 132 in the radial direction is defined as H2, and the ratio of H2 to H1 is preferably in the range of 0.5 to 0.8, and may optionally include, but is not limited to, 0.5, 0.6, 0.7, 0.8, etc. More preferably, the ratio of H2 to H1 ranges from 0.6 to 0.7, and may optionally include, but is not limited to, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.7, etc.

The cross-sectional shape of the first protrusion 121 in the axial direction is substantially triangular, and the cross-sectional dimension of the first protrusion in the axial direction gradually decreases from the tread 11 in the radial direction away from the tire 1, and the tread of the first protrusion 121 is provided with a groove 122, the groove 122 is formed by radially recessing the tread of the first protrusion 121, and the groove 122 can further enhance the contact area of the first protrusion 121 with the ground, thereby enhancing the grip of the tire 1. It should be understood that in other embodiments, the cross-sectional shape of the first protrusion 121 along the axial direction may be configured in other shapes, such as a circle, an ellipse, a regular quadrangle, a rectangle, etc., and may be configured as a point-like or a line-like tip.

The second protrusion 131 is similar in shape to the first protrusion 121, the cross-sectional dimension in the axial direction gradually decreases from the tread 11 in the radial direction away from the tire 1, and the tread of the second protrusion 131 is also provided with a groove 133, and the groove 133 of the second protrusion 131 also enhances the contact area of the second protrusion 131 with the ground, thereby enhancing the grip of the tire 1. It should be understood that in other embodiments, the cross-sectional shape of the second protrusion 131 along the axial direction may be different from the cross-sectional shape of the first protrusion 121 along the axial direction, and the cross-sectional shape of the second protrusion 131 along the axial direction may be configured in other shapes, such as a circle, an ellipse, a regular quadrangle, a rectangle, etc., and may be configured as a point-like or a line-like tip.

Further, in order to make the inner wall of the groove 122 or 133 more sufficiently contact the ground, it is necessary to limit the depth H3 of the groove 122 or 133 in the radial direction, and the depth H3 of the groove 122 or 133 in the radial direction is preferably in the range of 0.2mm to 0.8mm, optionally including but not limited to 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, and the like. It should be understood that the grooves 122 may be formed only in the tread of the first protrusion 121 or the grooves 133 may be formed only in the tread of the second protrusion 131, or the grooves 122 and 133 may be formed in the tread of a part of the first protrusion 121 and a part of the second protrusion 131, as desired.

Furthermore, in the lateral direction of the tread 11, the two first protrusions 121 of the first protrusion group 12 are symmetrical with respect to the central axis A1 of the tread 11, and the two second protrusions 131 of the second protrusion group 13 are also symmetrical with respect to the central axis A1 of the tread 11. Also in the circumferential direction of the tread 11, the pitches of the adjacent two first convex groups 12 and second convex groups 13 are equal, i.e., the plurality of first convex groups 12 and the plurality of second convex groups 13 are alternately arranged at uniform intervals.

The tread 11 of the tyre 1 of the present utility model is provided with the first convex group 12 and the second convex group 13, wherein the connecting table 132 of the second convex group 13 forms a concave area relative to the two second protrusions 131, thereby increasing the contact area of the second convex group 13 and the bottom surface and enhancing the grip of the tyre 1.

While the preferred embodiments of the present utility model have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A tire, characterized in that the tread of the tire is provided with:

at least one first lobe set comprising at least one first lobe; and

at least two second bulges which are arranged at intervals; and

2. Tyre according to claim 1, characterized in that said second projection has a radial dimension H1 and said connecting station has a radial dimension H2, the ratio of H2 to H1 ranging from 0.5 to 0.8.

3. Tyre according to claim 2, characterized in that the ratio of H2 to H1 ranges from 0.6 to 0.7.

4. The tire of claim 1, wherein the tire tread has a width dimension W0 in the axial direction;

5. The tire of claim 4 wherein the ratio of W1 to W0 ranges from 0.7 to 0.75.

6. The tire of claim 4 wherein said second lobe set includes two of said second lobes and said land located between said two of said second lobes, said two of said second lobes being axially aligned, said land being axially centered on said tire, the center-to-center spacing of said two of said second lobes being in the range of 0.2 to 0.5 for the ratio of W2 to W0.

7. Tyre according to claim 6, characterized in that the ratio of W2 and W0 ranges from 0.3 to 0.4.

8. Tyre according to claim 1, characterized in that said first raised tread and/or said second raised tread are each provided with grooves having a depth in the radial direction ranging from 0.2mm to 0.8mm.

9. The tire of claim 1, wherein the first projection tapers in axial dimension from the tread of the tire to the outside and the second projection tapers in axial dimension from the tread of the tire to the outside.

10. Autonomous working apparatus comprising a tyre as claimed in any one of claims 1 to 9.