Reinforced chassis and autonomous mobile equipment

Abstract

The utility model discloses a reinforced chassis and autonomous mobile equipment, and relates to the technical field of autonomous mobile equipment. The reinforced chassis comprises a chassis body, the chassis body is provided with a first rotating shaft mounting part and a second rotating shaft mounting part, and the first rotating shaft mounting part is located on the first side of the chassis body in the first direction and used for inserting a rotating shaft of a first wheel; the second rotating shaft mounting part is located on the second side of the chassis body in the first direction and used for inserting a rotating shaft of a second wheel; the first reinforcing rib assembly is located on the first side of the chassis body and is connected with the chassis body and the first rotating shaft mounting part; the second reinforcing rib assembly is located on the second side of the chassis body, the second reinforcing rib assembly is connected with the chassis body and the second rotating shaft installation part, and due to the fact that the corresponding reinforcing rib assemblies are arranged on the rotating shaft installation parts on the two sides of the chassis body respectively to reinforce the connection state of the rotating shaft installation parts and the chassis body, the reinforced chassis is high in impact resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of autonomous mobile devices, and more specifically, to a reinforced chassis. In addition, the utility model also relates to an autonomous mobile device including the above-mentioned reinforced chassis. Background Art

[0002] A lawn mower is a mechanical tool for cutting and trimming weeds and processing and leveling green lawns. Generally, a lawn mower is provided with a cutter head at the bottom of the machine driven by a motor, and the cutter head rotates to perform cutting or trimming work. In order to facilitate movement and improve operation efficiency, a wheel set is arranged on the machine chassis to lift the machine chassis to a preset height, so that there is a certain height between the cutter head and the ground, enabling the lawn mower to perform mowing operations while moving forward.

[0003] The wheel set needs to bear the entire weight of the lawn mower. However, the operation site of the lawn mower is not always a flat grassland. It has been found in practice that when one side of the wheels of the lawn mower rolls over obstacles such as stones or slopes during the pushing operation, the corresponding wheel axle of the wheel will cause an instantaneous high-intensity impact force on the chassis, which is likely to damage it.

[0004] In summary, how to avoid damage to the chassis caused by impact is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model

[0005] In view of this, an object of the utility model is to provide a reinforced chassis with strong impact resistance.

[0006] Another object of the utility model is to provide an autonomous mobile device including the above-mentioned reinforced chassis.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A reinforced chassis and an autonomous mobile device, comprising:

[0009] A chassis body having a first rotating shaft mounting portion and a second rotating shaft mounting portion. The first rotating shaft mounting portion is located on the first side of the chassis body along a first direction and is used for inserting the rotating shaft of a first wheel; the second rotating shaft mounting portion is located on the second side of the chassis body along the first direction and is used for inserting the rotating shaft of a second wheel;

[0010] A first reinforcing rib assembly located on the first side of the chassis body, and the first reinforcing rib assembly connects the first side of the chassis body and the first rotating shaft mounting portion;

[0011] A second reinforcing rib assembly located on the second side of the chassis body, and the second reinforcing rib assembly connects the second side of the chassis body and the second rotating shaft mounting portion.

[0012] Preferably, it further includes a third reinforcing rib assembly disposed on the bottom surface of the chassis body;

[0013] The first end of the third reinforcing rib assembly is connected to the second rotating shaft mounting portion;

[0014] The second end of the third reinforcing rib assembly is connected to the first rotating shaft mounting portion.

[0015] Preferably, the first reinforcing rib assembly is a grid-like structure; and / or the second reinforcing rib assembly is a grid-like structure; and / or the third reinforcing rib assembly is a grid-like structure.

[0016] Preferably, the first rotating shaft mounting portion and the second rotating shaft mounting portion are symmetric about the longitudinal symmetry plane, and the first direction is perpendicular to the longitudinal symmetry plane; the first reinforcing rib assembly and the second reinforcing rib assembly are symmetrically arranged about the longitudinal symmetry plane, and the third reinforcing rib assembly is symmetrically arranged about the longitudinal symmetry plane.

[0017] Preferably, both the first reinforcing rib assembly and the second reinforcing rib assembly include a first reinforcing rib extending in the second direction and a second reinforcing rib extending in the third direction;

[0018] Any two of the second direction, the third direction, and the first direction are perpendicular to each other.

[0019] Preferably, the third reinforcing rib assembly includes a third reinforcing rib extending in the first direction and a fourth reinforcing rib extending in the second direction.

[0020] Preferably, it further includes a bottom cover covering the outside of the third reinforcing rib assembly.

[0021] Preferably, the top of the chassis body has a mounting plate, and the mounting plate protrudes from the chassis body in the first direction;

[0022] The second ends of the first reinforcing rib assembly and the second reinforcing rib assembly are both connected to the bottom surface of the mounting plate.

[0023] Preferably, the length of the first reinforcing rib assembly in the advancing direction of the chassis body is greater than the maximum outer diameter of the first rotating shaft mounting portion;

[0024] The length of the second reinforcing rib assembly in the advancing direction of the chassis body is greater than the maximum outer diameter of the second rotating shaft mounting portion.

[0025] An autonomous mobile device includes the reinforced chassis provided in any one of the above.

[0026] The reinforced chassis provided by the present utility model, the chassis body is the main structure of the chassis for installing a cutter head, a transmission system, a first wheel and a second wheel, etc., and a first rotating shaft installation part is installed on the first side of the chassis body to insert the rotating shaft connected to the first wheel. Similarly, a second rotating shaft installation part is provided on the second side of the chassis body to insert the rotating shaft connected to the second wheel.

[0027] The beneficial effect is that there is a first reinforcing rib assembly on the first side of the chassis body, and the first reinforcing rib assembly connects the first side of the chassis body and the first rotating shaft installation part; similarly, there is a second reinforcing rib assembly on the second side of the chassis body, and the second reinforcing rib assembly connects the second side of the chassis body and the second rotating shaft installation part. The impact generated by the ground on the first wheel and the second wheel will be transmitted to the chassis body, the first reinforcing rib assembly and the second reinforcing rib assembly. Since corresponding reinforcing rib assemblies are respectively provided for the rotating shaft installation parts on both sides of the chassis body to strengthen the connection state between the rotating shaft installation part and the chassis body, compared with the related art, the impact resistance of this reinforced chassis is stronger. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0029] Figure 1 It is the first partial schematic diagram of the specific embodiment provided by the present utility model;

[0030] Figure 2 It is the second partial schematic diagram of the specific embodiment provided by the present utility model;

[0031] Figure 3 It is the bottom view of the specific embodiment provided by the present utility model;

[0032] Figure 4 It is the third partial schematic diagram of the specific embodiment provided by the present utility model;

[0033] Figure 5 It is the fourth partial schematic diagram of the specific embodiment provided by the present utility model.

[0034] Reference Signs:

[0035] 1 - chassis body; 11 - mounting plate; 2 - first rotating shaft installation part; 3 - second rotating shaft installation part; 4 - first reinforcing rib assembly; 41 - first reinforcing rib; 42 - second reinforcing rib; 5 - third reinforcing rib assembly; 51 - third reinforcing rib; 52 - fourth reinforcing rib; 6 - bottom cover;

[0036] X - The first direction; Y - The second direction; Z - The third direction. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] The core of the present invention is to provide a reinforced chassis with strong anti - impact ability. Another core of the present invention is to provide an autonomous mobile device including the above - mentioned reinforced chassis.

[0039] Please refer to Figure 1 , the present invention provides a reinforced chassis, including a chassis body 1, a first reinforcing rib assembly 4 and a second reinforcing rib assembly. Among them, the chassis body 1 has a first rotating shaft installation part 2 and a second rotating shaft installation part. The first rotating shaft installation part 2 is located on the first side of the chassis body 1 along the first direction and is used for inserting the rotating shaft of the first wheel; the second rotating shaft installation part is located on the second side of the chassis body 1 along the first direction and is used for inserting the rotating shaft of the second wheel;

[0040] The first reinforcing rib assembly 4 is located on the first side of the chassis body 1, and the first reinforcing rib assembly 4 connects the first side of the chassis body 1 and the first rotating shaft installation part 2;

[0041] The second reinforcing rib assembly is located on the second side of the chassis body 1, and the second reinforcing rib assembly connects the second side of the chassis body 1 and the second rotating shaft installation part 3.

[0042] In a specific embodiment, the first reinforcing rib assembly 4 is located on the first side of the chassis body 1. The inner side surface of the first reinforcing rib assembly 4 is attached and fixedly connected to the side surface of the first side of the chassis body 1, and the first end of the first reinforcing rib assembly 4 is connected to the first rotating shaft installation part 2; the second reinforcing rib assembly is located on the second side of the chassis body 1. The inner side surface of the second reinforcing rib assembly is attached and fixedly connected to the side surface of the second side of the chassis body 1, and the first end of the second reinforcing rib assembly is connected to the second rotating shaft installation part 3.

[0043] The chassis body 1 is the main structure of the chassis for installing a cutter head, a transmission system, the first wheel and the second wheel, etc. As Figure 1 and Figure 4 shown, the first rotating shaft installation part 2 is installed on the left side of the chassis body 1 to insert the rotating shaft connected to the first wheel. Similarly, the second rotating shaft installation part 3 is provided on the right side of the chassis body 1 to insert the rotating shaft connected to the second wheel.

[0044] On the left side of the chassis body 1, there is a first reinforcing rib assembly 4. The first reinforcing rib assembly 4 is connected to the left side surface of the chassis body 1 and the first rotating shaft mounting portion 2 located on the left side. In a specific embodiment, the right side surface of the first reinforcing rib assembly 4 is attached to and fixedly connected to the left side surface of the chassis body 1, and the lower end of the first reinforcing rib assembly 4 is connected to the portion of the first rotating shaft mounting portion 2 that protrudes leftward from the chassis body 1. Similarly, on the right side of the chassis body 1, there is a second reinforcing rib assembly. The second reinforcing rib assembly is connected to the right side surface of the chassis body 1 and the second rotating shaft mounting portion 3 located on the right side. In a specific embodiment, the left side surface of the second reinforcing rib assembly is attached to and fixedly connected to the right side surface of the chassis body 1, and the lower end of the second reinforcing rib assembly is connected to the portion of the second rotating shaft mounting portion 3 that protrudes rightward from the chassis body 1. The impact generated by the ground on the first wheel and the second wheel will be transmitted to the chassis body 1, the first reinforcing rib assembly 4, and / or the second reinforcing rib assembly. Compared with the related art, the impact resistance of this chassis is relatively strong.

[0045] Based on the above embodiment, it further includes a third reinforcing rib assembly 5 disposed on the bottom surface of the chassis body 1. The first end of the third reinforcing rib assembly 5 is connected to the second rotating shaft mounting portion 3. The second end of the third reinforcing rib assembly 5 is connected to the first rotating shaft mounting portion 2.

[0046] Optionally, the top surface of the third reinforcing rib assembly 5 is attached to and fixedly connected to the bottom surface of the chassis body 1.

[0047] As Figure 2 and Figure 5 shown, on the bottom surface of the rear end of the chassis body 1, there is a third reinforcing rib assembly 5. In a specific solution, the upper side surface of the third reinforcing rib assembly 5 is attached to and fixedly connected to the bottom surface of the chassis body 1. The right end of the third reinforcing rib assembly 5 is connected to the left end of the second rotating shaft mounting portion 3, and the left end of the third reinforcing rib assembly 5 is connected to the right end of the first rotating shaft mounting portion 2, strengthening the connection strength between the second rotating shaft mounting portion 3, the first rotating shaft mounting portion 2, and the chassis body 1. The impact resistance of this chassis is further improved, and the anti-fracture ability of this chassis is relatively strong.

[0048] It should be noted that the types of the first reinforcing rib assembly 4, the second reinforcing rib assembly, and the third reinforcing rib assembly 5 are not limited, as long as the above functions can be achieved. For example, as Figure 4 shown, both the first reinforcing rib assembly 4 and the second reinforcing rib assembly include a plurality of second reinforcing ribs 42 extending along the Z direction and parallel to each other. As Figure 5 shown, the third reinforcing rib assembly 5 includes a plurality of third reinforcing ribs 51 extending along the X direction and parallel to each other.

[0049] Based on the above embodiments, the first reinforcing rib assembly 4 is a grid structure; and / or the second reinforcing rib assembly is a grid structure; and / or the third reinforcing rib assembly 5 is a grid structure, as Figure 1 and Figure 2 shown. With such a setting, it is beneficial to further improve the impact resistance of the reinforced chassis.

[0050] Furthermore, the first reinforcing rib assembly 4, the second reinforcing rib assembly, the third reinforcing rib assembly 5 and the chassis body 1 are integrally molded injection parts. Preferably, the ratio of the thickness of several reinforcing ribs in the first reinforcing rib assembly 4, the second reinforcing rib assembly, and the third reinforcing rib assembly 5 to the wall thickness of the chassis body 1 is 1:1 or close to 1:1, which is beneficial to the injection success rate of the integrally molded injection part. In some specific embodiments, the ratio of the first reinforcing rib 41 and the second reinforcing rib 42 of the first reinforcing rib assembly 4, the first reinforcing rib 41 and the second reinforcing rib 42 of the second reinforcing rib assembly, and the third reinforcing rib 51 and the fourth reinforcing rib 52 of the third reinforcing rib assembly 5 to the wall thickness of the chassis body 1 is 1:1 or close to 1:1, which is beneficial to the injection success rate of the integrally molded injection part.

[0051] Based on the above embodiments, the first rotating shaft mounting portion 2 and the second rotating shaft mounting portion 3 are symmetric about the longitudinal symmetry plane, and the first direction is perpendicular to the longitudinal symmetry plane; the first reinforcing rib assembly 4 and the second reinforcing rib assembly are symmetrically arranged about the longitudinal symmetry plane, and the third reinforcing rib assembly 5 is symmetrically arranged about the longitudinal symmetry plane.

[0052] It should be noted that the chassis body 1 is usually a symmetric structure, symmetric about the longitudinal plane along the forward direction. The above first reinforcing rib assembly 4 and the second reinforcing rib assembly are symmetrically arranged about the chassis body 1, and further, they are symmetrically arranged about the longitudinal symmetry plane of the chassis body 1, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown. With such a setting, it is beneficial to ensure the stability of the reinforced chassis and reduce the manufacturing difficulty.

[0053] Based on the above embodiments, as Figure 1 shown, both the first reinforcing rib assembly 4 and the second reinforcing rib assembly include a first reinforcing rib 41 extending in the Y direction and a second reinforcing rib 42 extending in the Z direction to ensure the impact resistance and tensile strength of the reinforced chassis.

[0054] Based on the above embodiments, as Figure 2 shown, the third reinforcing rib assembly 5 includes a third reinforcing rib 51 extending in the X direction and a fourth reinforcing rib 52 extending in the Y direction.

[0055] It should be noted that the types of the first reinforcing rib assembly 4, the second reinforcing rib 42, and the third reinforcing rib assembly 5 are not limited. For example, a grid structure, a cross-shaped structure, etc. are acceptable as long as the performance requirements are met.

[0056] It should also be noted that the types of the first reinforcing rib 41, the second reinforcing rib 42, the third reinforcing rib 51, and the fourth reinforcing rib 52 are not limited. For example, a rectangular sheet, a trapezoidal sheet, etc. are acceptable as long as the performance requirements are met.

[0057] Based on the above embodiments, it further includes a bottom cover 6 covering the outside of the third reinforcing rib assembly 5. As Figure 3 shown, the bottom cover 6 is installed on the chassis body 1, and the two can be connected by rivets or screws, etc., so as to shield the third reinforcing rib assembly 5 located on the bottom surface of the chassis body 1 through the bottom cover 6, which is beneficial to protecting the third reinforcing rib assembly 5 and preventing the third reinforcing rib assembly 5 from being damaged due to external impacts.

[0058] It should be noted that the type of the bottom cover 6 is not limited as long as the above functions can be achieved. For example, the bottom cover 6 can adopt a rectangular thin shell structure, and the third reinforcing rib assembly 5 is inserted into its inner cavity through the top opening of the bottom cover 6, or the bottom cover 6 can adopt an arched structure, etc.

[0059] Based on the above embodiments, the top of the chassis body 1 has a mounting plate 11, and the mounting plate 11 protrudes from the chassis body 1 along the first direction; the second ends of the first reinforcing rib assembly 4 and the second reinforcing rib assembly are both connected to the bottom surface of the mounting plate 11. That is to say, the second end of the first reinforcing rib assembly 4 is connected to the bottom surface of the left end of the mounting plate 11 along the first direction, and the second end of the second reinforcing rib assembly is connected to the bottom surface of the right end of the mounting plate 11 along the first direction.

[0060] As Figure 1 and Figure 4 shown, there is a mounting plate 11 above the chassis body 1. The left part structure of the mounting plate 11 protrudes from the chassis body 1 towards the left. The lower end of the first reinforcing rib 41 is connected to the first rotating shaft mounting part 2 located on the left side of the chassis body 1, and the upper end is connected to the above-mentioned left part of the mounting plate 11. Similarly, the right part structure of the mounting plate 11 protrudes from the chassis body 1 towards the right. The lower end of the second reinforcing rib 42 is connected to the second rotating shaft mounting part 3 located on the right side of the chassis body 1, and the upper end is connected to the above-mentioned right part of the mounting plate 11, so as to further ensure the anti-impact performance of the autonomous mobile device using this reinforced chassis.

[0061] Based on the above embodiments, the length of the first reinforcing rib assembly 4 along the advancing direction of the chassis body 1 is greater than the maximum outer diameter of the first rotating shaft mounting part 2; the length of the second reinforcing rib assembly along the advancing direction of the chassis body 1 is greater than the maximum outer diameter of the second rotating shaft mounting part 3.

[0062] In the forward direction, that is, in the radial direction of the first rotating shaft mounting portion 2, the entire part is covered by the first reinforcing rib assembly 4, and in the radial direction of the second rotating shaft mounting portion 3, the entire part is covered by the second reinforcing rib assembly, so as to form a sufficiently stable connection between the first rotating shaft mounting portion 2, the second rotating shaft mounting portion 3 and the chassis body (1).

[0063] On the basis of the above embodiment, the mounting plate 11 is provided with a first detector and a second detector. The first detector is located on the left side of the rear end of the chassis body 1 along the X direction, and the second detector is located on the right side of the rear end of the chassis body 1 along the X direction to detect the height position of the mounting plate 11. With such a setting, the working state of the reinforced chassis can be judged through the detection result.

[0064] The detection ends of the first detector and the second detector face the ground or the central position of the first wheel, etc., so as to detect the height position of the corresponding side of the mounting plate 11 in real time, and thereby the working states of the chassis body 1, the first reinforcing rib assembly 4, the second reinforcing rib assembly and the third reinforcing rib assembly 5 can be judged.

[0065] It should be noted that the types of the first detector and the second detector are not limited. For example, height sensors, displacement sensors, etc. are acceptable as long as they can achieve the above functions.

[0066] In addition to the above reinforced chassis, the present utility model also provides an autonomous mobile device including the reinforced chassis disclosed in the above embodiment. For the structures of other parts of the autonomous mobile device, reference can be made to the prior art and will not be elaborated herein.

[0067] In some specific embodiments, the autonomous mobile device may specifically be a lawn mower, a tractor, etc.

[0068] It should be noted that the relational terms such as "first" and "second" described above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0069] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the various embodiments can be referred to each other.

[0070] The above has introduced in detail the enhanced chassis and the autonomous mobile device provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. A reinforced chassis, characterized in that: include: The chassis body (1) comprises a first rotating shaft mounting portion (2) and a second rotating shaft mounting portion (3), wherein the first rotating shaft mounting portion (2) is located on a first side of the chassis body (1) along a first direction and is used for inserting a rotating shaft of a first wheel; and the second rotating shaft mounting portion (3) is located on a second side of the chassis body (1) along the first direction and is used for inserting a rotating shaft of a second wheel. A first reinforcing rib assembly (4) is located on a first side of the chassis body (1), the first reinforcing rib assembly (4) connecting the first side of the chassis body (1) and the first rotating shaft mounting portion (2); A second reinforcing rib assembly is located on the second side of the chassis body (1), and the second reinforcing rib assembly connects the second side of the chassis body (1) and the second rotating shaft mounting portion (3).

2. The reinforced chassis according to claim 1, characterized in that: It also includes a third reinforcing rib assembly (5) arranged on the bottom surface of the chassis body (1); The first end of the third reinforcing rib assembly (5) is connected to the second rotating shaft mounting portion (3); The second end of the third reinforcing rib assembly (5) is connected to the first rotating shaft mounting portion (2).

3. The reinforced chassis according to claim 2, characterized in that: The first reinforcing rib assembly (4) is a grid-like structure; and / or the second reinforcing rib assembly is a grid-like structure; and / or the third reinforcing rib assembly (5) is a grid-like structure.

4. The reinforced chassis according to claim 3, characterized in that: The first rotating shaft mounting portion (2) and the second rotating shaft mounting portion (3) are symmetrical about a longitudinal symmetry plane, and the first direction is perpendicular to the longitudinal symmetry plane; The first reinforcing rib assembly (4) and the second reinforcing rib assembly are symmetrically arranged with respect to the longitudinal symmetry plane, and the third reinforcing rib assembly (5) is symmetrically arranged with respect to the longitudinal symmetry plane.

5. The reinforced chassis according to claim 4, characterized in that: The first reinforcing rib assembly (4) and the second reinforcing rib assembly both comprise a first reinforcing rib (41) extending along the second direction and a second reinforcing rib (42) extending along the third direction; Any two of the second direction, the third direction and the first direction are perpendicular to each other.

6. The reinforced chassis according to claim 5, characterized in that: The third reinforcing rib assembly (5) comprises a third reinforcing rib (51) extending along the first direction and a fourth reinforcing rib (52) extending along the second direction.

7. The reinforced chassis according to claim 3, characterized in that: It also includes a bottom cover (6) which is arranged on the outside of the third reinforcing rib assembly (5).

8. The reinforced chassis according to any one of claims 1 to 7, characterized in that: The top of the chassis body (1) is provided with a mounting plate (11), and the mounting plate (11) protrudes from the chassis body (1) along the first direction; The second end of the first reinforcing rib assembly (4) and the second end of the second reinforcing rib assembly are both connected to the bottom surface of the mounting plate (11).

9. The reinforced chassis according to claim 8, characterized in that: The length of the first reinforcing rib assembly (4) along the forward direction of the chassis body (1) is greater than the maximum outer diameter of the first rotating shaft mounting portion (2); The length of the second reinforcing rib assembly along the forward direction of the chassis body (1) is greater than the maximum outer diameter of the second rotating shaft mounting portion (3).

10. An autonomous mobile device, characterized in that: The invention comprises a reinforced chassis as described in any one of claims 1 to 8 above.

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