Walking device

Abstract

The utility model provides a walking device, and relates to the field of agricultural machinery equipment, the bottom of a machine body is provided with a cutting mechanism used for mowing, wheels are installed on the machine body through axles, and the machine body, the axles and the wheels are encircled to form a vertically through channel. A plurality of stop dogs are arranged on the outer surface of the side wall forming the machine body in a protruding mode, the stop dogs protrude out of the outer surface of the machine body, the tail ends of the stop dogs are closer to the wheels and the axles, gaps between the axles and the outer surface of the machine body and between the wheels and the outer surface of the machine body are smaller, and hands cannot stretch into the gaps easily. The hands of the user are prevented from stretching into the channel to touch the cutting mechanism below the machine body, and the damage to the user is avoided; the stop blocks are arranged on the outer surface of the side wall of the machine body to reduce the gap size, the size of the machine body is not increased additionally, and the protection effect is achieved under the condition that it is guaranteed that the size of the machine body is not increased too much.

Description

Technical Field

[0001] The utility model relates to the field of garden machinery and equipment, and further relates to a walking device. Background Art

[0002] A lawn mower is a mechanical device used to trim lawns and grass, significantly improving lawn maintenance efficiency. There are various types of lawn mowers, primarily classified by drive type, including traditional fuel-powered and electric mowers. Based on usage, they include push mowers, riding mowers, and robotic mowers.

[0003] A robotic lawn mower is an automated device that can be programmed to automatically mow the lawn at a specific time. They typically use boundaries to define the mowing area and automatically return to a charging station after completing their task. Robotic lawn mowers are increasingly popular due to their compact size, lightweight design, and automated operation.

[0004] For lawn mowers whose wheels are not covered by the body and are exposed, the user's hand can pass through the channel between the wheel, axle and the body and touch the blade at the bottom of the body, causing the user to be cut by the blade. Utility Model Content

[0005] The core of this utility model is to provide a walking device. By setting a block on the outer surface of the body, the size of the upper and lower through-channels formed by the body, axle and wheel are reduced, thereby preventing the user's hand from contacting the cutting mechanism and being injured. The specific scheme is as follows:

[0006] A walking device comprises a body, an axle, and wheels, wherein a cutting mechanism for mowing grass is provided at the bottom of the body;

[0007] The wheels are mounted on the machine body via the axles, and the machine body, the axles, and the wheels together form a vertically penetrating passage;

[0008] At least one stopper is protruding from the outer surface of the body, and the stopper is located in the channel to form an obstacle in the channel.

[0009] Optionally, the stopper is a vertically arranged plate-like structure, and a plurality of the stoppers are distributed side by side.

[0010] Optionally, the stoppers are plate-like structures arranged transversely, and the stoppers are arranged in at least one row transversely; the plate-like structures forming one row are a whole or several independent split structures.

[0011] Optionally, the stopper protrudes from the outer surface of the body and extends in a direction toward the wheel and the axle; in the axial direction along the axle, the closer the stopper is to the wheel, the shorter the protrusion from the outer surface of the body. Optionally, each stopper is a wedge-shaped plate with a larger base thickness and a smaller end thickness.

[0012] Optionally, each of the stoppers is a narrowed structure with a large width at the root and a small width at the end; and the outer edge of the stopper is a smooth curve.

[0013] Optionally, the stoppers are distributed near the lower area of the machine body.

[0014] Optionally, a shock absorber is provided between the axle and the body, and a connection position between the axle and the shock absorber is located on a side of the axle close to the block.

[0015] Optionally, the body includes a first part with a larger width and a second part with a smaller width, the axle is installed on the second part, the wheels are arranged on the left and right sides of the second part, and the first part, the second part, the axle and the wheels together form the channel; the stop block is protruding on the front side wall of the second part.

[0016] Optionally, the extension directions of the blocks are parallel to each other.

[0017] The utility model provides a walking device, wherein a cutting mechanism for mowing grass is arranged at the bottom of a machine body, and wheels are mounted on the machine body through axles, and the machine body, axles and wheels together form a channel that runs through from top to bottom. In order to prevent a human hand from reaching downwards into the cutting mechanism through the channel, at least one stopper is protrudingly provided on the outer surface of a side wall of the machine body. Since the stopper protrudes outwards from the outer surface of the machine body, the end of the stopper is closer to the wheel and the axle than the machine body, and the gap formed by the end of the stopper and the wheel and the axle is smaller, making it more difficult for a human hand to reach into the gap, thereby preventing a user's hand from reaching into the channel and then touching the cutting mechanism below the machine body, causing injury to the user; the stopper is provided on the outer surface of the side wall of the machine body to reduce the gap size, without additionally increasing the size of the machine body itself, thereby achieving a protective effect while ensuring that the size of the machine body does not increase too much. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1This is an axonometric diagram of an embodiment of the walking device of the present utility model;

[0020] Figure 2 This is a top view of an embodiment of the walking device of the utility model;

[0021] Figure 3 A side view of an embodiment of a machine body;

[0022] Figure 4 for Figure 3 A partial enlarged view of the middle dotted circle.

[0023] The diagram includes:

[0024] Body 1, axle 2, wheel 3, stopper 4, shock absorber 5. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the walking device of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] The front, back, left, right, up and down directions in this utility model are for the whole vehicle. Figure 1 、 Figure 2 As shown, the X-axis direction is the left and right direction of the vehicle, the Y-axis direction is the front and back direction of the vehicle, and the Z-axis direction is the up and down direction of the vehicle. The normal forward movement direction of the vehicle is the front (Y-axis), and the side close to the ground is the bottom (Z-axis).

[0027] The utility model provides a walking device, such as Figure 1 As shown, the lawn mower comprises a body 1, axles 2, wheels 3, a cutting mechanism, and other components. The body 1 is the main structure of the entire lawn mower, primarily comprising a chassis and a top cover. All other related components are mounted on the body 1. The axle 2 is mounted on the body 1, and the wheels 3 are mounted on the axle 2. The wheels 3 can move on the ground, enabling the body 1 to move forward, backward, and turn. The cutting mechanism for mowing grass is located at the bottom of the body 1. The cutting mechanism is mounted on the chassis of the body 1 and is used to trim the grass below. The wheels 3 move on the ground while the cutting mechanism trims the grass.

[0028] The wheels 3 are mounted on the body 1 through the axle 2. The body 1, axle 2 and wheels 3 together form a vertically penetrating channel. Figure 2As shown, the dotted area A represents the space enclosed by the body 1, axle 2, and wheel 3. This space allows a hand to be inserted, which poses a risk of contact between the hand and the cutting mechanism below the body 1. To prevent injury from a hand inserted downward, at least one stopper 4 is provided protruding from the outer surface of the side wall of the body 1. The stopper 4 is located within the passage and forms an obstacle within the passage. The stopper 4 is located on the vertical side wall of the body 1, protruding outward from the side wall of the body 1 and extending toward the axle 2 and wheel 3. The distance between the end of the stopper 4 and the axle 2 and wheel 3 is smaller than the distance between the outer surface of the body 1 and the axle 2 and wheel 3 at the corresponding position. The stopper 4 reduces the gap size between the axle 2 and the outer surface of the body 1, and between the wheel 3 and the outer surface of the body 1.

[0029] A stopper is provided on the protruding side wall of the body 1, and the lateral dimension of the vertically penetrating passage formed by the body 1, the axle 2 and the wheel 3 is smaller. The size of the stopper 4 is set reasonably so that the space left is insufficient for a human hand to enter. Even if a human hand is forced into the gap, the fingers cannot bend and are insufficient to contact the cutting mechanism below the body 1.

[0030] The walking device provided by this utility model prevents a user's hand from reaching down through the passageway and potentially touching the cutting mechanism below the body 1, thus preventing injury to the user. The lawn mower only incorporates a block 4 on the outer sidewall of the body 1 to reduce the clearance, eliminating the need to increase the size of the body 1 itself. This provides a protective effect while ensuring the body size is not excessively increased. The block 4 also prevents tubular objects standing on the ground from becoming lodged in the vertically extending passageway, potentially affecting the mower's movement.

[0031] By setting a stopper 4 on the body 1, the edge of the body 1 is expanded outward. Since the stopper 4 extends outward, the distance from the cutting mechanism to the end of the stopper 4 is greater than the distance from the cutting mechanism to the outer surface of the body 1, thereby increasing the spacing distance of the hand. Even if the hand is extended into the gap from top to bottom, it is less likely to contact the cutting mechanism.

[0032] It should be noted that the gap between the front wheel and the body is protected in this utility model. Figure 2 As shown, a stopper is provided on the rear side of the front wheel, and the stopper protrudes toward the front; the outer shell above the body blocks the front position of the rear wheel, and the hand cannot be extended downward from in front of the rear wheel, so there is no need to provide a stopper structure at the rear wheel.

[0033] On the basis of the above scheme, the present invention provides a specific setting form of the stopper 4, combined with Figure 1 、 Figure 3 、 Figure 4As shown, the block 4 is a plate-like structure arranged vertically, and several blocks 4 are distributed side by side. The vertical referred to here means that the block 4 as a whole has a tendency to extend vertically. The block 4 can be a vertical flat plate or a vertical curved plate. It is not required that the entire plate surface is vertical. For the convenience of processing, the block 4 is usually set as a flat plate with a certain thickness. Multiple blocks 4 are arranged in a horizontally spaced manner to form a protective area along the surface of the body 1, reducing the gap for the hand to enter in this area. In order to provide sufficient protection, the horizontal spacing between two adjacent blocks 4 should be less than the width of a single finger, which can prevent the finger from extending downward from between the two blocks 4 and the finger from contacting the bottom surface of the body 1.

[0034] The present invention provides another specific setting form of the block 4. The block 4 is a plate-like structure arranged horizontally. The horizontal here refers to the tendency of the block 4 to extend horizontally as a whole. The block 4 can be a horizontal flat plate or a horizontal curved plate, and the entire plate surface is not required to be horizontally straight. The block 4 is arranged in at least one row along the horizontal direction, and the plate-like structure formed in one row is a whole or several independent split structures. That is, a row of block 4 can be a complete continuous plate surface, or it can be composed of several narrow plates arranged at intervals. The intervals between the narrow plates should be smaller than the width of a single finger, which can prevent the finger from extending downward from between the two block 4 and the finger from contacting the bottom surface of the body 1. For the block 4 extending horizontally, at least one row should be set. In order to improve the protection effect, it is best to set more than two rows.

[0035] On the basis of any of the above schemes, the stopper 4 protrudes from the outer surface of the body 1, and the stopper 4 extends in the direction toward the wheel 3 and the axle 2. The length of the stopper 4 protruding outward along the axial direction of the axle is not completely equal. In the axial direction along the axle 2, the distributed stoppers 4 have size differences. The closer the stopper 4 is to the wheel 3, the shorter the length protruding from the outer surface of the body 1. Relatively speaking, the length close to the wheel is shorter, and the length close to the axle is longer; the length of the stopper 4 protruding from the outer surface of the body 1 (the distance protruding from the outer surface of the body 1, Figure 2 L) is positively correlated with the gap size at its location, combined with Figure 2 As shown, the lengths of the blocks 4 protruding toward the axle 2 and the wheel 3 are not all equal (there may be some blocks 4 with equal lengths), and the radial size of the wheel 3 is larger than the radial size of the axle 2. Therefore, the block 4 protruding directly toward the wheel 3 is smaller, and the block 4 protruding directly toward the axle 2 is larger. That is, a small gap only requires a smaller block, and a large gap requires a larger block, so that the gap forms an effective barrier, and the block 4 should be prevented from interfering with the normal operation of the wheel 3.

[0036] Combine Figure 1 As shown, each stopper 4 is the root thickness ( Figure 2The stopper 4 is a wedge-shaped plate with a large middle T and a small thickness at the end. The position where the stopper 4 is connected to the body 1 is the root, and the edge away from the body 1 is the end. The thickness of the stopper 4 gradually decreases from the connection with the body 1 to the direction away from the body, which can prevent the stopper 4 from breaking at the root and improve the service life of the stopper.

[0037] The stopper 4 and the body 1 are integrally formed by an injection molding process. The stopper 4 is formed into a thin sheet. The thickness of the stopper 4 is close to the thickness of the outer shell of the body 1, which makes the success rate of the injection molding process higher.

[0038] Each stopper 4 is the root width ( Figure 3 W) large, narrow structure with small end width; combined Figure 3 、 Figure 4 As shown, for the vertically extending stopper 4, the width is the vertical height dimension, and the width gradually narrows from the root to the end to ensure the structural strength of the root. The outer edge of the stopper 4 is a smooth curve to avoid sharp edges and corners that may scratch the hands.

[0039] The block 4 is distributed in the area near the bottom of the body 1, combined with Figure 3 、 Figure 4 As shown, the main part of the stopper 4 is located below the transverse centerline of the side wall of the body 1, and the lower edge of the stopper 4 is roughly flush with the lower edge of the body 1. The lower edge of the stopper 4 extends roughly laterally and has a large protruding length, forming a sufficient spacing effect below.

[0040] Combine Figure 1 As shown, the wheels 3 are mounted to the body 1 via the axle 2. A shock absorber 5 is disposed between the axle 2 and the body 1. The shock absorber 5 is used to bear the weight of the body 1 and transfer the weight to the axle 2, thereby reducing vibrations generated during travel. The upper end of the shock absorber 5 is mounted to the body 1, and the lower end is mounted to the axle 2. The connection between the axle 2 and the shock absorber 5 is located on the side of the axle 2 near the block 4. For the front wheels, the mounting base of the shock absorber 5 is located on the rear side of the axle 2. The mounting base protrudes a certain distance rearward in the horizontal direction, occupying a portion of the space previously used for the clearance, thereby further narrowing the lateral spacing of the channel.

[0041] Combine Figure 1 、 Figure 2As shown, in the lawn mower of the present invention, the body 1 includes a first part with a large width and a second part with a small width. The axle 2 is installed on the second part, and the wheels 3 are arranged on the left and right sides of the second part. The first part is located at the rear of the body, and the second part is located at the front of the body 1. The shape of the entire body 1 is generally in the shape of a "convex" character. The partial side walls of the first part, the partial side walls of the second part, the axle 2 and the wheels 3 together form the above-mentioned channel. The wheels 3 are arranged on the left and right sides of the front width where the width is small. The part with a smaller front width is the nose section. The two front wheels are respectively arranged on the left and right sides of the nose section, and the outer edges of the two wheels are roughly flush with the width of the rear width. The stopper 4 is protrudingly arranged on the front side wall of the first part of the body 1. The front side wall of the first part in the figure is two roughly vertical inclined surfaces. The stopper 4 is distributed on this inclined surface, and the stopper 4 protrudes toward the front side.

[0042] The extension directions of the various blocks 4 are parallel to each other, forming an array distribution. The specific length, width and thickness of each block 4 can be different, but the extension trend of the surface remains parallel, which is convenient for mold processing and molding.

[0043] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A walking device, characterized in that: It comprises a body (1), an axle (2), and wheels (3); a cutting mechanism for mowing grass is provided at the bottom of the body (1); The wheel (3) is mounted on the body (1) via the axle (2), and the body (1), the axle (2), and the wheel (3) together form a vertically penetrating passage; At least one stopper (4) is protruding from the outer surface of the body (1), and the stopper (4) is located in the channel to form an obstacle in the channel.

2. The walking device according to claim 1, characterized in that: The stopper (4) is a plate-shaped structure arranged vertically, and a plurality of the stoppers (4) are distributed side by side.

3. The walking device according to claim 1, characterized in that: The stoppers (4) are plate-like structures arranged transversely, and the stoppers (4) are arranged in at least one row transversely; the plate-like structures forming one row are a whole or a plurality of independent split structures.

4. The walking device according to any one of claims 1 to 3, characterized in that: The stopper (4) protrudes from the outer surface of the body (1) and extends in a direction toward the wheel (3) and the axle (2); in the axial direction along the axle (2), the closer the stopper (4) is to the wheel (3), the shorter the length of the stopper (4) protruding from the outer surface of the body (1).

5. The walking device according to any one of claims 1 to 3, characterized in that: Each of the stoppers (4) is a wedge-shaped plate with a thicker root portion and a thinner end portion.

6. The walking device according to any one of claims 1 to 3, characterized in that: Each of the stoppers (4) is a narrowed structure with a large width at the root and a small width at the end; the outer edge of the stopper (4) is a smooth curve.

7. The walking device according to any one of claims 1 to 3, characterized in that: The stoppers (4) are distributed near the lower area of the machine body (1).

8. The walking device according to any one of claims 1 to 3, characterized in that: A shock absorber (5) is provided between the axle (2) and the machine body (1), and the connection position between the axle (2) and the shock absorber (5) is located on a side of the axle (2) close to the stopper (4).

9. The walking device according to any one of claims 1 to 3, characterized in that: The body (1) comprises a first portion with a large width and a second portion with a small width, the axle (2) is mounted on the second portion, the wheels (3) are arranged on the left and right sides of the second portion, and the first portion, the second portion, the axle (2) and the wheels (3) together form the channel; the stopper (4) is protrudingly arranged on the front side wall of the second portion.

10. The walking device according to any one of claims 1 to 3, characterized in that: The extension directions of the respective stoppers (4) are parallel to each other.

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