CN116114457A

CN116114457A - Mowing tractor

Info

Publication number: CN116114457A
Application number: CN202210998191.XA
Authority: CN
Inventors: 李立; 许海深; 魏添方
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2021-11-12
Filing date: 2022-08-19
Publication date: 2023-05-16

Abstract

The invention discloses a mowing tractor, comprising: a seat for seating a user, the seat comprising a seat cushion and a backrest; a frame supporting the seat; a cutting assembly including a mowing element for mowing, the cutting assembly mounted to the frame; the walking assembly is used for driving the mowing tractor to walk on a plane; the power supply assembly is used for supplying power to the cutting assembly and the walking assembly; a front cover member located at a front portion of the mowing tractor for covering the power supply assembly; the vertical distance from the seat cushion of the mowing tractor to the plane of the mowing tractor is less than 73cm.

Description

Mowing tractor

Technical Field

The present application relates to a garden tool, for example to a mowing tractor.

Background

Riding mower is widely used as a garden tool in the field of mowing lawns, vegetation and the like. Compared with a hand-push mower, the mower and the tractor are more labor-saving in use and higher in mowing efficiency. In the market, the mowing tractor generally adopts diesel oil as energy supply, so that not only is noise and environment pollution caused, but also vulnerable parts in a fuel system need to be replaced frequently, thereby increasing maintenance cost. In addition, because the volume of the fuel engine is larger, the mowing tractor on the market is generally provided with a higher front covering piece, so that the front dead zone is larger; in addition, because of the heavy weight of the fuel engine, commercial mowers often have heavy front wheel loads, and therefore are laborious and inflexible to steer.

Disclosure of Invention

To solve the above-mentioned problem, the present application discloses a mowing tractor, comprising: a seat for seating a user, the seat comprising a seat cushion and a backrest; a frame supporting the seat; a cutting assembly including a mowing element for mowing, the cutting assembly mounted to the frame; the walking assembly is used for driving the mowing tractor to walk on a plane; the power supply assembly is used for supplying power to the cutting assembly and the walking assembly; a front cover member located at a front portion of the mowing tractor for covering the power supply assembly; the vertical distance from the seat cushion of the mowing tractor to the plane of the mowing tractor is less than 73cm.

In one embodiment, the center of gravity of the mowing tractor is lower than the seat cushion in the up-down direction.

In one embodiment, the power supply assembly includes a built-in cell module or at least one battery pack.

In an embodiment, the walking assembly comprises at least a first walking wheel, and the height difference between the highest point of the built-in battery module or the battery pack which is farthest from the seat and the center point of the first walking wheel is less than or equal to 45cm.

In one embodiment, the vertical distance between the highest point of the built-in cell module or the built-in cell module furthest from the seat or the battery pack in the built-in cell module or the at least one battery pack and the plane is less than or equal to 63cm.

In one embodiment, the vertical distance between the plane of the frame and the plane is greater than or equal to 35cm and less than or equal to 37cm.

In one embodiment, the difference in height between the seat cushion and the frame is less than or equal to 40cm.

In one embodiment, the difference in height between the lowest point of the steering wheel and the seat cushion is 24cm or more.

In one embodiment, the built-in cell module is disposed behind at least one battery pack.

In an embodiment, the power supply assembly further includes a battery management circuit board disposed above the built-in battery cell module.

The utility model discloses a mowing tractor, focus is lower, and the front shroud also can be made lower, and when the user takes on the seat, the blind area is little, and the visibility is better.

Drawings

FIG. 1 is a perspective view of a mowing tractor according to one embodiment of the present application;

FIG. 2 is a side view of the mowing tractor of FIG. 1;

FIG. 3 is a bottom view of the mowing tractor of FIG. 1;

FIG. 4 is a side view of the mowing tractor of FIG. 1 with a grass collection system installed;

FIG. 5 is a perspective view of the front cover of the mowing tractor of FIG. 1 when open;

FIG. 6 is a side view of the front cover of the mowing tractor of FIG. 1 with the front cover open;

FIG. 7A is a schematic diagram of a power supply assembly of one embodiment of the present application;

FIG. 7B is a schematic diagram of a power supply assembly of another embodiment of the present application;

FIG. 7C is a schematic diagram of a power supply assembly of another embodiment of the present application;

FIG. 8A is a perspective view of a front cover of a mowing tractor of another embodiment of the present application open;

FIG. 8B is a perspective view of a front cover of a mowing tractor of another embodiment of the present application open;

FIG. 8C is a perspective view of a front cover of a mowing tractor of another embodiment of the present application open;

FIG. 9A is a schematic diagram of a power assembly and storage space of one embodiment of the present application;

FIG. 9B is a schematic view of a power assembly and storage space according to another embodiment of the present application;

FIG. 9C is a schematic view of a power assembly and storage space according to another embodiment of the present application;

FIG. 9D is a schematic view of a power assembly and storage space according to another embodiment of the present application;

FIG. 9E is a schematic view of a power assembly and storage space according to another embodiment of the present application;

FIG. 9F is a schematic view of a power assembly and storage space according to another embodiment of the present application;

FIG. 10 is a perspective view of a portion of the structure of the mowing tractor of FIG. 1;

FIG. 11 is a perspective view of a control panel of the mowing tractor of FIG. 1;

FIG. 12 is a perspective view of the mowing tractor of FIG. 1 with the pedal removed;

FIG. 13 is a system schematic of a mowing tractor according to one embodiment of the present application;

FIG. 14 is a perspective view of a steering assembly of the mowing tractor of FIG. 1;

FIG. 15 is a bottom view of the steering assembly of FIG. 14;

FIG. 16A is a front view of the support bar and bracket of the steering assembly of FIG. 14;

FIG. 16B is a cross-sectional view of the support rod and bracket of the steering assembly of FIG. 14;

FIG. 17A is a perspective view of a cutterhead elevation assembly of one embodiment of the present application;

fig. 17B is a perspective view of a cutterhead elevation assembly of another embodiment of the present application;

FIG. 18 is a side view of the structure of FIG. 17A;

FIG. 19 is a front view of a seat support of an embodiment of the present application;

FIG. 20 is a perspective view of a portion of the structure of the mowing tractor of FIG. 1;

FIG. 21 is a perspective view of the grass collection system and cutting assembly of the mowing tractor of FIG. 4;

FIG. 22 is a side view of the structure of FIG. 21;

FIG. 23 is a perspective view of a mounting assembly of one embodiment of the present application;

fig. 24 is a perspective view of a sunshade assembly according to an embodiment of the present application.

Detailed Description

As shown in fig. 1, the riding mowing apparatus of the present disclosure is a mowing tractor 100, the mowing tractor 100 being operable by a user riding thereon to cut lawns, other vegetation, and the like.

In the present specification, the front, rear, left, right, upper and lower directions are described as the directions shown in fig. 1. Specifically, when the user sits on the mowing tractor 100 on the ground, the direction in which the user faces is defined as the front, the direction in which the user faces away is defined as the rear, the direction in which the user is left is the left, the direction in which the user is right is the right, the direction in which the user approaches the ground is the lower, and the direction in which the user is away from the ground is the upper.

As shown in fig. 1 to 4, the mowing tractor 100 includes: cutting assembly 10, carriage 91, seat 92, housing system 20, walk assembly 93, power assembly 96, illumination system 40, and operator assembly 50. Wherein frame 91 and housing system 20 comprise a main body 100a of mower 100, main body 100a is configured to mount cutting assembly 10, seat 92, power assembly 96, and illumination system 40, and traveling assembly 93 is configured to support main body 100a. The mowing tractor 100 provides power to the cutting assembly 10, the walk assembly 93, the lighting system 40, and the like through a power assembly. In this embodiment, the power component of the mowing tractor 100 is a power component 96, and the power component 96 provides electrical power to the various components of the mowing tractor 100, such that the mowing tractor 100 may be used as a power tool. Compared with the fuel-type mowing tractor 100, the electric mowing tractor 100 is more environment-friendly and saves more energy.

The cutting assembly 10 is used for outputting power to realize the function of the mowing tractor 100, the cutting assembly 10 is used as a power output piece, the host 100a supports the power output piece, and the cutting assembly 10 comprises: cutterhead 11, mowing member 12 and first motor 13. The mowing element 12 is adapted to cut vegetation when rotated at high speed, e.g. the mowing element 12 is a blade for cutting grass on a lawn, the cutterhead 11 encloses a mowing space 121 formed for receiving at least part of the mowing element 12, i.e. the mowing element 12 is at least partially received in the cutterhead 11, and the first motor 13 is adapted to drive the mowing element 12 in rotation. As shown in fig. 3, the cutting assembly 10 is disposed below the carriage 91. In an embodiment, the number of mowing elements 12 may be 2, the number of first motors 13 2, and correspondingly, two first motors 13 respectively drive mowing elements 12. In an embodiment, the number of mowing elements 12 may be 3, the number of first motors 13 is 3, and accordingly, three first motors 13 drive mowing elements 12 respectively. The mowing element 12 is positioned in a mowing space 121 formed around the cutterhead 11. The mowing space 121 is open downwards, so that the mowing element 12 can perform a cutting operation on vegetation located below the mowing space 121. As shown in fig. 4, the mowing tractor 100 may further include a grass collection system 30, i.e., a user may selectively install the grass collection system 30, the grass collection system 30 for collecting grass clippings cut by the cutting assembly 10. Grass collection system 30 includes a grass collection basket assembly 31, and grass collection basket assembly 31 is removably mounted behind seat 92. The seat 92 includes a seat cushion 921 for seating a user, and a backrest 922 for supporting the back of the user. Thus, it can also be said that the grass collection basket assembly 31 is mounted behind the backrest 922.

8A-8C, the cutting assembly 10 may also be removed from the mower tractor 100, at which time the mower tractor 100 may be coupled to other work attachments, such as a snow shovel assembly. The snow shoveling assembly includes a snow shovel and a snow shovel angle adjustment, and the snow shoveling assembly may be suspended to the frame 91. At this time, strictly speaking, the mowing tractor 100 is not just a riding type mowing apparatus, but a riding type vehicle, and may perform different works according to the different work accessories connected. In one embodiment, the mowing tractor 100 is provided with at least one work attachment interface, such as a hitch, threads, holes, slots, etc., which may be formed in or secured to the frame 91 due to the high load carrying capacity of the frame 91. Different working accessory interfaces are used to match different working accessories, and the same working accessory interface can also match different working accessories.

Frame 91 extends substantially in a front-to-rear direction, and cutting assembly 10, housing system 20, walking assembly 93, power assembly 96, grass collection system 30, and illumination system 40 are all mounted to frame 91, frame 91 being adapted to support a main frame 100a portion of overall mower tractor 100. The walking assembly 93 is for supporting the frame 91 so that the mowing tractor 100 can walk on the ground, and the walking assembly 93 includes a first walking assembly 931 and a second walking assembly 932. In the present embodiment, the first traveling assembly 931, i.e., the front traveling assembly, includes two first traveling wheels (front wheels), i.e., zuo Di traveling wheels 931L and right first traveling wheels 931R, and the second traveling assembly 932, i.e., the rear traveling assembly, includes two second traveling wheels (rear wheels), i.e., left second traveling wheels 932L and right second traveling wheels 932R. Wherein the radius of the second travelling wheel is larger than that of the first travelling wheel. Zuo Di a running wheel 931L and a right first running wheel 931R are connected by a front axle 934; the left second road wheel 932L and the right second road wheel 932R are connected by a rear axle. The traveling assembly 93 further includes a second motor 933 for driving the second traveling assembly 932. In one embodiment, the rear axle further includes a differential that causes the left second road wheel 932L and the right second road wheel 932R to rotate at different rates driven by the second motor 933 when the mower tractor 100 turns or travels over uneven terrain.

Referring to fig. 14 and 15, the frame 91 includes: longitudinal and transverse members, in some embodiments, the frame 91 includes two longitudinal members, a first longitudinal member 911 and a second longitudinal member 912, respectively, and the frame 91 further includes two transverse members, a first transverse member 913 and a second transverse member 914, respectively. The first side member 911 is provided on the left side of the seat 92, and the second side member 912 is provided on the right side of the seat 92. The first longitudinal beam 911 extends along a first straight line 1b, the second longitudinal beam 912 extends along a second straight line 1c, and both the first straight line 1b and the second straight line 1c are parallel to the bisecting plane 1d of the mowing tractor 100. In the present embodiment, the extending directions of the first side member 911 and the second side member 912 are parallel to each other. In the present embodiment, a plane passing through the first straight line 1b and the second straight line 1c, that is, a plane 1g on which the frame 91 is located is defined as a reference plane of the mowing tractor 100, and when the mowing tractor 100 travels on the ground, that is, a plane 1f, the reference plane 1g and the plane 1f are parallel to each other. Specifically, since the frame 91 itself has a certain thickness, the plane 1g of the frame 91 referred to herein refers to the plane in which the upper edge of the frame 91 is located. The first beam 913 is provided on the front side of the seat 92, and the first beam 913 is substantially located at the front end of the mowing tractor 100, so that the first beam 913 also serves as a front bumper protecting the front end of the mowing tractor 100 from damage. In one embodiment, the first beam 913 is formed with a recess to at least partially receive the front axle 934. The front axle 934 may also be secured to the front axle 934 by fastening devices such as bolts. The first beam 913 and the second beam 914 are substantially positioned at the rear end of the mowing tractor 100 such that the second beam 914 also acts as a rear bumper protecting the rear end of the mowing tractor 100 from damage. At least part of the first beam 913 and the second beam 914 extends along a transverse straight line 1e, and the transverse straight line 1e extends in the left-right direction. In the present embodiment, the extending directions of the first beam 913 and the second beam 914 are parallel to each other, and the transverse straight line 1e is perpendicular to the first straight line 1b and the second straight line 1 c. In the present embodiment, the height of the frame 91 is low, thereby lowering the center of gravity of the entire mowing tractor 100, so that the mowing tractor 100 runs smoothly. In one embodiment, the vertical distance H5 between the plane 1g of the frame 91 and the plane 1f of the mowing tractor 100 is greater than or equal to 35cm and less than or equal to 37cm.

The housing system 20 includes: a left cover 21, a right cover 22 and a front cover 23. The front cover 23 is provided on the front of the mowing tractor 100, and is the front face of the mowing tractor 100. The front cover 23 covers to form a front receiving chamber 231. In one embodiment, as shown in fig. 5, the front cover 23 includes an upper cover 232 and a rail 233 that are formed separately, and the upper cover 232 and the rail 233 together form a front accommodating chamber 231 after being assembled above the frame 91; in another embodiment, the front cover 23 is an integrally formed half-pack structure that forms the front receiving chamber 231 when assembled above the frame 91. The front cover 23 is preferably a metal member so that, on the one hand, heat dissipation from the power supply assembly 96 is facilitated and, on the other hand, strength of the front chassis is increased; of course, the front cover 23 may also be made of a plastic material, saving costs, and the specific structure and materials of the front cover 23 are not limited by the present application. The left cover 21 is disposed on the left side of the seat 92, and the right cover 22 is disposed on the right side of the seat 92. In one embodiment, the left cover 21 at least partially covers Zuo Di the second road wheel 932L and the right cover 22 at least partially covers the right second road wheel 932R. The left cover 21 and the right cover 22 may be two separately formed parts or may be one integrally formed part, i.e. the left cover 21 and the right cover 22 are integrally connected to form a cover which as a whole at least partially covers the second traveling assembly 932. The specific structure and materials of the left and right covers 21 and 22 are not limited by the present application.

In one embodiment, the illumination system 40 includes: a front lighting assembly 42, a left lighting assembly 43, a right lighting assembly 44. In one embodiment, the illumination system 40 further comprises: a rear lighting assembly. The left lighting assembly 43 is disposed on the left side of the seat 92, the right lighting assembly 44 is disposed on the right side of the seat 92, and the rear lighting assembly is disposed on the rear side of the seat 92. Specifically, front lighting assembly 42 is mounted to front cover 23, front lighting assembly 42 including front illumination lamp 421; a left lighting assembly 43 is mounted to the left cover 21, the left lighting assembly 43 including a left illumination lamp; a right illumination assembly 44 is mounted to the right cover 22, the right illumination assembly 44 comprising a right illumination lamp. In this way, the front lighting assembly 42 may illuminate the area in front of the mowing tractor 100. The left and

right illumination assemblies

43, 44 may act as the marker lights of the mowing tractor 100, thereby facilitating the viewing of the contour of the mowing tractor 100 by other persons around.

The power supply assembly 96 is configured to provide power to the cutting assembly 10, the walking assembly 93, the lighting system 40, etc., wherein the first motor 13, the second motor 933, and the lighting system 40 each function as electrical devices contained by the mowing tractor 100 that are capable of converting electrical energy into other forms of energy. As shown in fig. 5-8, the power supply assembly 96 includes at least one battery pack for storing electrical energy. The power supply assembly 96 is provided at the front of the mowing tractor 100, covered by the front cover 23. The power supply assembly 96 includes a battery compartment housing 961, the battery compartment housing 961 includes a first battery compartment 162 for mounting a first battery pack 161, the power supply assembly 96 may include the first battery compartment 162, and the number of the first battery compartments 162 may be plural. In one embodiment, the power assembly 96 includes 6 first battery compartments 162, and the power assembly 96 may house 6 first battery packs 161. Compared with the fuel engine and the fuel tank, even the 6 first battery packs 161 are relatively lighter in weight, so that the load of the first traveling assembly 931 at the front part is lighter than the load of the second traveling assembly 932 at the rear part, so that the weight of the mowing tractor 100 is backwards moved, the steering force required during steering is reduced, the user can operate more easily, meanwhile, the positive pressure of the second traveling assembly at the rear part to the ground is relatively larger, the ground grabbing force of the second traveling assembly of the mowing tractor 100 is increased, and the mowing tractor 100 can climb a slope more easily. In one embodiment, the load ratio of first traveling assembly 931 and second traveling assembly 932 is 1.2 or less; in one embodiment, the load ratio of the first traveling assembly 931 and the second traveling assembly 932 is 1 or less; in one embodiment, the load ratio of first traveling assembly 931 and second traveling assembly 932 is equal to or less than 0.8. The center of gravity G of the mowing tractor 100 is located forward of the line connecting the center points of the left second road wheel 932L and the right second road wheel 932R in the front-rear direction.

Referring to fig. 6 and 8B, each first battery pack 161 may be respectively and correspondingly mounted to each first battery compartment 162. The first battery compartment 162 may be formed with a first groove 162a, and the first battery pack 161 may be detachably inserted into the first groove 162a along the extension direction 1a of the first groove 162a and withdrawn from the first groove 162a along the extension direction 1a of the first groove 162 a. In an embodiment, the upper cover 232 of the front cover 23 has an open state and a closed state, and the first recess 162a is opened when the upper cover 232 is in the open state, when the user can insert the first battery pack 161 into the first recess 162 a; when the upper cover 232 is in the closed state, the first recess 162a is closed, so that the first battery pack 161 positioned in the battery compartment housing 961 can be protected to some extent.

It will be appreciated that the 6 first battery compartments 162 may also be formed from a single larger battery compartment, i.e., the power assembly 96 includes only one battery compartment, with a plurality of first battery packs 161 each mounted into the one battery compartment. Alternatively, the power supply assembly 96 may include only one first battery compartment 162, and correspondingly, the power supply assembly 96 may also include only one first battery pack 161. That is, the number of the first battery compartments 162 and the number of the first battery packs 161 are not particularly limited, and the correspondence relationship between the first battery compartments 162 and the first battery packs 161 is not limited to one-to-one correspondence relationship. The plurality of first battery packs 161 are arranged in a regular shape, for example, symmetrically distributed about the center plane 1d of the mowing tractor 100. The first battery pack 161 has a height direction along which the extension direction 1a of the first recess 162a is inserted, and also has a length direction perpendicular to the height direction and a width direction, and the size of the first battery pack 161 in the length direction is also larger than the size thereof in the width direction. In the present embodiment, when the first battery pack 161 is inserted into the first recess 162a, the length direction of the first battery pack 161 extends in the left-right direction of the mowing tractor 100. In this way, when the user needs to install or remove the first battery pack 161, the user's wrist does not need to be twisted, improving the comfort of operation.

Taking the example in which the power supply assembly 96 includes 6 first battery packs 161 in the present embodiment, according to the side view of fig. 7A, the 6 first battery packs 161 are arranged in three rows in the front-rear direction, each row including two first battery packs 161 arranged in the left-right direction. The length of the first battery pack 161 in the left-right direction is also greater than the width thereof in the front-rear direction. In this way, two first battery packs 161 are arranged in the left-right direction, and three first battery packs 161 are arranged in the front-rear direction, and the orientation of a single first battery pack 161 is set such that its length in the left-right direction is also longer than its length in the front-rear direction, so that it is possible to avoid that the lengths of these 6 first battery packs 161 in the front-rear direction are excessively long to increase the size of the entire mowing tractor 100 in the front-rear direction, and also to avoid that the sizes of these 6 first battery packs 161 in the left-right direction are excessively small to effectively utilize the space occupied by the mowing tractor 100 in the left-right direction, thereby making the arrangement of the power supply assembly 96 more reasonable and saving the arrangement space. Since the vertical height of the highest point of the first battery pack 161 is much smaller than that of the engine when it is placed in the direction 1a, the vertical height of the front part of the front cover 23 of the mowing tractor 100 of the present application is lower than that of the conventional fuel-type mowing tractor, and the front dead zone is smaller when the user sits on the mowing tractor 100. Also, the center of gravity G of the mowing tractor 100 is lowered, and in the present embodiment, the center of gravity G of the mowing tractor 100 is lower than the seat cushion 921 in the up-down direction.

In another embodiment, 6 first battery packs 161 are arranged stepwise in the front-rear direction, and according to the side view of fig. 7B, 6 first battery packs 161 are arranged in two rows, the front row including two first battery packs 161 arranged in the left-right direction, the rear row including four stacked first battery packs 161, more specifically, the rear row including upper and lower layers, the lower layer including two first battery packs 161 arranged in the left-right direction, and the upper layer including two first battery packs 161 arranged in the left-right direction. This arrangement further shortens the length of the 6 first battery packs 161 in the front-rear direction, and at the same time, since there is still only one layer of two first battery packs 161 arranged in the left-right direction in the front row, the height of the front portion of the power supply assembly 96 is low, and therefore the vertical height of the front portion of the front cover is low, and the front dead zone is small when the user sits on the mowing tractor. On this basis, since there are only two rows of the first battery packs 161 in the front-rear direction, the first battery packs 161 may be laid down as shown in fig. 7C, thereby further reducing the height of the power supply assembly 96. As shown in fig. 6, in an embodiment, a height difference H1 between a highest point of the battery packs farthest from the seat 92 in the first battery pack 161 and a center point of the first traveling wheel is 50cm or less; in one embodiment, the difference in height H1 between the highest point of the battery pack farthest from the seat 92 in the first battery pack 161 and the center point of the first traveling wheel is 45cm or less; in one embodiment, the height difference H1 between the highest point of the battery pack farthest from the seat 92 in the first battery pack 161 and the center point of the first traveling wheel is 44cm or less. Also, since the frame of the mowing tractor 100 is low, the vertical distance between the first battery pack 161 and the plane of the mowing tractor 100 is small. In one embodiment, the vertical distance H2 between the highest point of the battery pack farthest from the seat 92 in the first battery pack 161 and the plane 1f on which the mowing tractor 100 is located is less than or equal to 63cm; in one embodiment, the vertical distance H2 between the highest point of the battery pack farthest from the seat 92 in the first battery pack 161 and the plane 1f on which the mowing tractor 100 is located is less than or equal to 62cm.

In addition to including only the first battery pack 161, the power supply assembly 96 may be configured as a combination of a built-in battery module 163 and an externally inserted battery pack, which may be the first battery pack 161 or may be another detachable battery pack. As shown in fig. 8A-8C, in one embodiment, the power assembly 96 includes two first battery packs 161 and a row of built-in battery modules 163. In another embodiment, the power supply assembly 96 includes two first battery packs 161 and two rows of built-in battery modules 163. Compared to a removable plug-in battery pack, the built-in battery module 163 is lower in cost and more compact in construction, providing more sufficient energy storage for the mower tractor 100 while saving space and cost. Meanwhile, the detachable plug-in battery packs with a certain number are combined, and the flexibility of the power supply assembly 96 is also considered, for example, a user can only take the first battery pack 161 away for charging without starting the whole mowing tractor 100 to a charging station, and when the user is inconvenient or has no time to charge the built-in battery pack 163 of the mowing tractor 100, the user can directly insert the first battery pack 161 to meet the mowing requirement in a short time. In an embodiment, the first battery pack 161 may be mounted to the first battery compartment 162, and the first battery compartment 162 is disposed in front of the built-in battery module 163, such that when the user installs or removes the first battery pack 161, it is not necessary to operate over the built-in battery module 163, thereby facilitating the user's installation or removal of the first battery pack 161.

The power supply assembly 96 further includes a battery management system (BMS, battery Management System), which is implemented by the battery management circuit board 964, in particular. Since the first battery pack 161 of the external plug-in type is generally integrated with the BMS itself, the battery management circuit board 964 in the present embodiment is mainly used to manage the charging process of the built-in battery module 163 and the coordinated discharging of the first battery pack 161 and the built-in battery module 163. As shown in fig. 8A, the battery management circuit board 964 is disposed behind the built-in cell module 163, closer to the built-in cell module 163, and the bus bar path is shorter, but the provision of the battery management circuit board 964 behind the built-in cell module 163 is disadvantageous for heat dissipation of the battery management circuit board 964. As shown in fig. 8B, the battery management circuit board 964 is disposed in front of the first battery pack 161, that is, the battery management circuit board 964 is located at the forefront of the accommodation chamber covered by the front cover 23. Meanwhile, the front part of the front cover is provided with a vent, so that when the mowing tractor 100 runs forwards, the battery management circuit board 964 blows against the wind, and the heat dissipation effect is good; but at this time, the battery management circuit board 964 is far from the built-in battery module 163, and the routing path is long. As shown in fig. 8C, the battery management circuit board 964 is disposed above the built-in battery cell module 163, that is, the battery management circuit board 964 is located at an upper portion of the accommodation chamber covered by the front cover 23. Meanwhile, the top of the front cover is provided with a vent, so that when the mowing tractor 100 runs forwards, the battery management circuit board 964 blows against the wind, and the heat dissipation effect is good; and the battery management circuit board 964 is closer to the built-in cell module 163, and the bus line path is shorter; but to some extent affects the storage space above the built-in cell module 163.

In addition to housing the power supply assembly 96, the front cover 23 covers the front housing cavity 231 formed with a surplus of storage space 234 to provide a certain storage function. The front cover 23 includes an upper cover 232, the upper cover 232 having an open position and a closed position. When the upper cover 232 is in the open position, the storage space is accessible to a user. The storage space can be used for storing small tools, gloves, sun-shading caps, clothes and the like according to the requirements of users, so that convenience is brought to the users and the comfort level of mowing work is improved. As shown in fig. 9A, the power supply assembly 96 includes a row of first battery packs 161 and a row of built-in battery modules 163, wherein the first battery packs 161 are located in front of the built-in battery modules 163, the battery management circuit board 964 is disposed behind the built-in battery modules 163, the first battery packs 161 and the built-in battery modules 163 are disposed in front and middle portions of the front receiving cavity 231, and at this time, the rear and upper portions of the built-in battery modules 163 are disposed as the storage space 234a. As shown in fig. 9B, the power supply assembly 96 includes a row of first battery packs 161 and a row of built-in battery modules 163, wherein the first battery packs 161 are located in front of the built-in battery modules 163 with a space therebetween, that is, the first battery packs 161 are disposed in front of the front receiving cavities 231, the built-in battery modules 163 are disposed in rear of the front receiving cavities 231, and at this time, the spaces above the built-in battery modules 163 and between the first battery packs 161 and the built-in battery modules 163 are set as the storage spaces 234B. As shown in fig. 9C, the power supply assembly 96 includes a row of the first battery pack 161 and a row of the built-in battery modules 163, wherein the first battery pack 161 is located in front of the built-in battery modules 163, the first battery pack 161 and the built-in battery modules 163 are disposed at the middle and rear of the front receiving cavity 231, and at this time, the front of the first battery pack 161 and the upper side of the built-in battery modules 163 are disposed as the storage space 234C, and optionally, the storage space 234C may be divided into two parts, or, there may be two independent storage spaces. As shown in fig. 9D, the power supply assembly 96 includes a row of first battery packs 161 and two rows of built-in battery modules 163, wherein the first battery packs 161 are located in front of the built-in battery modules 163, the first battery packs 161 and the built-in battery modules 163 are disposed at the front, middle and rear portions of the front receiving cavity 231, and at this time, the upper portions of the two rows of built-in battery modules 163 are provided as the storage space 234D. Of course, the power supply assembly 96 is not limited to the combination of the first battery pack 161 and the built-in battery module 163, and the power supply assembly 96 may have only the first battery pack 161 or only the built-in battery module 163. As shown in fig. 9E, the power supply assembly 96 includes three rows of first battery packs 161, the three rows of first battery packs 161 being disposed at the front, middle and rear portions of the front receiving chamber 231, respectively, and at this time, the upper side of the first battery pack 161 is provided as the storage space 234E. As shown in fig. 9F, the power supply assembly 96 includes three rows of built-in cell modules 163, the built-in cell modules 163 are respectively disposed at the front, middle and rear portions of the front receiving cavity 231, and the battery management circuit board 964 is disposed at the rear of the built-in cell modules 163, and at this time, the upper side of the built-in cell modules 163 is set as the storage space 234F. To avoid interference of the received items with the power supply assembly 96, for example, with the first battery pack 161 or the built-in battery module 163, the battery management circuit board 964, the storage space 234 may be partitioned by a partition member, which may be a plastic member, the shape of which depends on the specific form of the storage space 234, and which will not be described in detail herein. The upper cover 232 of the front cover 23 may be movably and rotatably connected with the front cover 23 by means of a rail, a hinge, or the like, which will not be described in detail herein. The upper cover 232 of the front cover 23 may be opened according to the configuration of the storage space, and the specific shape and size of the upper cover 232 are not limited in the present application.

Referring to fig. 10-14, the operating assembly 50 of the mowing tractor 100 includes a control panel 52, a steering wheel assembly 56, and a pedal assembly 59. In one embodiment, pedal assembly 59 includes an accelerator pedal and a brake pedal. The control panel 52 and the steering wheel assembly 56 are disposed between the seat 92 and the front cover 23. In this embodiment, steering wheel assembly 56 includes a steering wheel 561 and a support bar 562. The steering wheel 561 may be operated by a user to control the traveling direction of the mowing tractor 100, the support bar 562 connects the steering wheel 561 and the steering assembly 60, and the support bar 562 transmits a moment of the user turning the steering wheel 561 to the steering assembly 60 to control the first traveling assembly to change direction. The control panel 52 is connected to the front cover 23, and the control panel 52 includes a display screen 51 and a plurality of operating members 55, so that a user can conveniently see the display state on the display screen 51 while operating the plurality of operating members 55, and the ergonomic design is more satisfied. The display screen 51 is used for displaying status information of the mowing tractor 100; the plurality of operating members 55 may be operated by a user to control the walking assembly and the cutting assembly, and the plurality of operating members 55 may include switches, keys, gears, etc.; the plurality of operating members 55 may be configured in different shapes and sizes so that a user may operate different operating members 55 without viewing them.

As shown in fig. 11, the plurality of operating members 55 include key holes 554. When a key is inserted into the key hole 554, the mowing tractor 100 can be started, and when no key is inserted into the key hole 554, the mowing tractor 100 is powered off and cannot be started. In one embodiment, the switch located in the keyway 554 is activated when the key is inserted into the keyway 554, i.e., the switch located in the keyway 554 is activated when the key is inserted into the keyway 554 without turning the key, thereby facilitating user operation. In one embodiment, a safety cover is further connected to the keyhole 554, and is movably connected to the keyhole 554, wherein when the key 551 is not inserted into the keyhole 554, the safety cover closes the keyhole 554, thereby preventing moisture, dust, etc. from entering the keyhole 554, and when the key 551 is inserted into the keyhole 554, the safety cover is pressed downward to open the keyhole 554. A key hole 554 is formed in the control panel 52, and the safety cover may be rotatably coupled to the control panel 52 by a torsion spring. The plurality of operating members 55 further include an actuation key 552, and when the actuation key 552 is activated, the mowing tractor 100 enters a standby state, in which a user can cause the mowing tractor 100 to enter a walk state, a mowing state, or the like by operating the other operating members 55. The plurality of operating members 55 further include a first push rod 553, the first push rod 553 having at least a first position and a second position, when the first push rod 553 is disposed in the first position, the mowing tractor 100 is in a forward state; when the push rod is disposed in the second position, the mowing tractor 100 is in a retracted state. When the mowing tractor 100 is in the forward state, a user may control the forward speed of the mowing tractor 100 through the pedal assembly 59; when the mowing tractor 100 is in the reverse state, a user may control the reverse speed of the mowing tractor 100 through the pedal assembly 59. The plurality of operating members 55 further include a PTO switch 555, the PTO switch 555 having a first position and a second position, the mowing element being rotated when the PTO switch 555 is disposed in the first position; when PTO switch 555 is set in the second position, the mowing element is stopped. Wherein PTO switch 555 is in a first position when lifted and PTO switch 555 is in a second position when depressed. When the user finds an emergency, the mowing element can be suddenly stopped by only shooting the PTO switch 555, and the operation is quick and convenient. The plurality of operating members 55 further include a cruise control button 556, and when the cruise control button 556 is activated, the mower tractor 100 receives a cruise control command from a user and determines whether to enter the cruise control mode according to the current state. In one embodiment, from a user perspective, the plurality of operating members 55 are distributed beneath the display screen 51.

The display screen 51 includes a display interface 510 for displaying the operating state of the mowing tractor 100, and the display interface 510 is understood as a display area directly observed by a user. Different status information may be displayed on the display interface 510 as desired. The running speed of the traveling assembly 93, the rotational speed of the mowing member 12, the energy efficiency state of the mowing tractor 100, the remaining power information of the power assembly 96, the warning information, the malfunction information, the remaining operation time of the power assembly 96, and the like may be displayed on the display interface 510. The display 51 also includes a plurality of keys, e.g., a first key 511 and a second key 512, arranged around the display interface 510 for operation by a user to adjust the travel speed and blade speed of the mower tractor 100, respectively. In one embodiment, the first button 511 is operable by a user to vary the maximum travel speed of the mower tractor 100, and when the user steps on the pedal assembly 59 to the maximum position, the mower tractor 100 walks at the maximum travel speed set by the first button 511. The second key 512 is operable by a user to change the rotational speed of the mowing element of the mowing tractor 100. The first key 511 and the second key 512 may be disposed at left and right sides of the display interface 510, respectively. A third button 513 is further disposed around the display interface 510, and is used for being operated by a user to control the lighting function of the mowing tractor 100, for example, when the user operates the third button 513 in the first operation mode, the lighting system 40 turns on a part of the lighting lamp; when the user operates the third key 513 using the second operation mode, the illumination system 40 turns on all illumination lamps. In this embodiment, a fourth button 514 is further disposed around the display interface 510, and the fourth button 514 is operable by a user to enable the mowing tractor 100 to enter different driving modes, such as a sport mode, a standard mode and a control mode, so that the user can select different driving modes according to personal preference, thereby improving the user experience of the mowing tractor 100. At this time, information of different driving modes of the mowing tractor 100 may also be displayed on the display interface 510. The fourth button 514 may also be operated by a user in a different manner of operation to perform other configurations of the mowing tractor 100, such as long pressing the fourth button 514 to switch driving modes, short pressing the fourth button 514 to enter a setup menu. The third button 513 and the fourth button 514 may be disposed at the lower side of the display interface 510.

As shown in fig. 2, the display screen 51 extends in an inclined plane 1h obliquely intersecting the plane 1g of the vehicle frame 91, and the display interface 510 extends in the same plane as the display screen 51. An included angle formed by the inclined plane 1h extending from the display screen 51 and the plane 1g of the frame 91 in an inclined intersecting manner is more than or equal to 20 degrees and less than or equal to 45 degrees; or, an included angle formed by the inclined plane 1h extending from the display screen 51 and the plane 1g of the frame 91 obliquely intersects with each other is 25 degrees or more and 40 degrees or less. In this way, the display screen 51 is extended obliquely upward, thereby facilitating the user's viewing of the status information on the display screen 51 while sitting on the seat 92, without the user having to look at the status information with his or her low head. In the present embodiment, the inclined plane 1j in which the steering wheel 561 extends is substantially parallel to the inclined plane 1i in which the control panel 52 extends. The included angle formed by the intersection of the inclined plane 1h extending from the display screen 51 and the plane 1g of the frame 91 is larger than the included angle formed by the intersection of the inclined plane 1i extending from the control panel 52 and the plane 1g of the frame 91, and similarly, the included angle formed by the intersection of the inclined plane 1h extending from the display screen 51 and the plane 1g of the frame 91 is larger than the included angle formed by the intersection of the inclined plane 1j extending from the steering wheel 561 and the plane 1g of the frame 91. An included angle formed by the inclined plane 1i extending from the control panel 52 and the plane 1g of the frame 91 in an inclined intersecting manner is more than or equal to 5 degrees and less than or equal to 35 degrees; alternatively, the inclined plane 1i extending from the control panel 52 and the plane 1g of the frame 91 intersect at an angle of 10 degrees or more and 30 degrees or less. Similarly, the inclined plane 1j extending from the steering wheel 561 and the plane 1g of the frame 91 form an angle of 5 degrees or more and 35 degrees or less; alternatively, the inclined plane 1j extending from the steering wheel 561 and the plane 1g of the frame 91 form an angle of 10 degrees or more and 30 degrees or less. Meanwhile, in order to facilitate the user to hold the steering wheel 561 at a comfortable angle while riding on the seat 92, the difference in height between the lowest point of the steering wheel 561 and the seat cushion 921 should not be too small, and in one embodiment, the difference in height H3 between the lowest point of the steering wheel 561 and the seat cushion 921 is 24cm or more; in one embodiment, the height difference H3 between the lowest point of the steering wheel 561 and the seat cushion 921 is 26cm or more.

The status information on the display interface 510 can be conveniently viewed by a user, and the size of the display interface 510 is understood to be the display area that is exposed to be viewable by the user. As shown in fig. 11, in the present embodiment, the display interface 510 is substantially rectangular, and the dimension of the display interface 510 in the length direction, that is, the length L2 is greater than or equal to 10 cm and less than or equal to 15 cm, and the dimension of the display interface 510 in the width direction, that is, the width L3 is greater than or equal to 6 cm and less than or equal to 10 cm, so that the dimension of the display interface 510 is large enough to display status information that more users want to understand. The area of the display interface 510 is 60 square centimeters or more and 150 square centimeters or less. The positional relationship of the display interface 510 and the steering wheel assembly 56 is shown in fig. 11, with the support rod 562 passing through the control panel 52, and more specifically, the support rod 562 passing through the control panel 52 from a lower portion of the display interface 510. When a user sits on the seat 92 and looks at the display interface 510, his line of sight passes through the steering wheel 561. Accordingly, the steering wheel 561 is provided with a large-area opening to facilitate the user to completely observe the display interface 510 from the opening. Preferably, since the support bar 562 passes under the display interface 510 and the support bar 562 supports the steering wheel 561 from the center of the steering wheel 561, the large-area opening is provided at the upper half of the steering wheel 561 toward which the display interface 510 is provided. Further, considering the distance between the inclined plane 1h where the display screen 51 extends and the inclined plane 1j where the steering wheel extends and the aspect ratio of the display interface 510 in combination, when the length L2 of the display interface 510 is equal to or greater than one-fourth of the diameter L1 of the steering wheel 561 and equal to or less than two-thirds of the diameter L1 of the steering wheel 561, the user can easily observe the entire display interface 510 from the opening of the steering wheel 561, and the size of the display interface 510 is sufficiently large. For a non-circular steering wheel, the diameter L1 of the steering wheel 561 refers to the maximum length of the steering wheel 561 in the left-right direction of the mowing tractor 100. In one embodiment, the length of display interface 510 is approximately equal to one-half the diameter L1 of steering wheel 561. In one embodiment, the ratio of the perimeter of the display interface 510 to the perimeter of the steering wheel 561 is greater than or equal to one-fourth and less than or equal to one-half. In one embodiment, the ratio of the perimeter of the display interface 510 to the perimeter of the steering wheel 561 is greater than or equal to one third and less than or equal to one half.

The mowing tractor 100 further includes a signal circuit board 951, the signal circuit board 951 is configured to receive status information of the mowing tractor 100 and transmit the status information to a display circuit board 953 of the display screen 51, and the signal circuit board 951 is also configured to receive switching signals of various operating elements and keys on the control panel 52 and transmit the switching signals to the main control circuit board 952. The signal circuit board 951 is mounted on the back surface of the control panel 52. That is, the front surface of the control panel 52 is provided with a display screen and a plurality of operating members, and in addition, a support rod 562 of a steering wheel passes through the control panel 52, the steering wheel also protrudes from the front surface of the control panel 52, and the steering wheel is parallel to the display screen; the back surface of the control panel 52 is provided with a signal circuit board 951. Therefore, the signal circuit board 951 is disposed on the upper portion of the entire mower 100, close to the display screen 51 and the respective operating members 55, and is economical and simple in wiring. This location is convenient to repair and the signal circuit board 951 can be removed for repair and replacement by turning up the control panel 52. In addition, since the signal circuit board 951 is located at the upper part of the whole machine, the part will not be soaked in water during normal use, and water inlet failure of the signal circuit board 951 is avoided. In addition, by separating the signal circuit board 951 from the control circuit board 952 of strong current, it is advantageous to avoid interference of strong and weak electric signals.

The mowing tractor 100 further includes: and a control circuit board 952. The control circuit board 952 is used to control the cutting assembly 10 and the traveling assembly 93. For the cutting assembly 10, the control circuit board 952 can control the operation of the first motor 13. For the traveling assembly 93, the control circuit board 952 can control the operation of the second motor 933. In the present embodiment, as shown in fig. 12, a control circuit board 952 is mounted to a vehicle frame 91. In the front-rear direction, a control circuit board 952 is provided between the seat 92 and the power supply assembly 96, and further, the control circuit board 952 is provided between the seat 92 and the support rod 562. In one embodiment, the control circuit board 952 is disposed below the service cover 25 of the mower tractor 100, i.e., where the user steps on his foot while riding on the seat 92. In the up-down direction, the control circuit board 952 is provided between the maintenance cover 25 and the cutterhead 11. In the left-right direction, the control circuit board 952 is disposed between two stringers, that is, between the first stringer 911 and the second stringer 912. The layout can save space and facilitate wiring, so that the whole structure is more compact, and the heat dissipation and the later maintenance of the control circuit board 952 are facilitated.

The pedal assembly 59 is located in front of the control circuit board 952, the second motor 933 is located behind the control circuit board 952, and the first motor 13 is located below the control circuit board 952, so that the distances between the main control circuit board 952 and the pedal assembly 59, the second motor 933 and the first motor 13 are relatively short, thereby saving and simplifying wiring. As shown in fig. 13, the main control circuit board 952 includes a cutting control module 9521 and a traveling control module 9522, the cutting control module 9521 is electrically connected to the first motor 13 through a wire, the traveling control module 9522 is electrically connected to the pedal assembly 59 and the second motor 933 through a wire, and the cutting control module 9521 and the traveling control module 9522 are also electrically connected to the signal circuit board 951 to receive electronic signals sent from the respective operation members 55 and keys on the control panel 52. Since both the upper and lower sides of the control circuit board 952 are in communication with air, when the mowing tractor 100 travels, the head-on wind blows over and under the control circuit board 952, taking away the heat of the control circuit board 952. In one embodiment, the master circuit board 952 may be encapsulated in a master box to protect the circuit elements for waterproof and dustproof effects. When maintenance is needed, the control circuit board 952 can be maintained or replaced by only disassembling the pedal and opening the main control box, so that the operation is convenient. In addition, since the control circuit board 952 is located above the cutterhead 11, this part will not be soaked in water during normal use, so that water inlet failure of the control circuit board 952 is avoided. In one embodiment, the center of gravity G of the mowing tractor is located between the control circuit board 952 and the seat 92 in the front-rear direction.

In the present embodiment, the steering assembly 60 of the mowing tractor 100 steers the first running assembly 931, that is, the steering assembly 60 is capable of steering the left first running wheel 931L and the right first running wheel 931R. As shown in fig. 14 and 15, the steering assembly 60 is disposed mainly rearward of the first traveling assembly 931. The first travel assembly 931 is located at least partially in front of the power assembly 96 in the front-to-rear direction of the mowing tractor 100, thereby protecting the power assembly 96. Specifically, the Zuo Di running wheel 931L and the right first running wheel 931R are located at least partially in front of the first battery pack 161 in the front-rear direction of the mowing tractor 100. The support bar 562 connects the steering wheel 561 and the steering assembly 60, and transmits a steering force applied to the steering wheel 561 by a user from the steering wheel 561 to the steering assembly 60. One end of the support rod 562 connected to the steering wheel 561 is fixedly provided with a gear 601, and the center of the steering wheel 561 includes a gear ring (not shown) engaged with the gear, and when the user rotates the steering wheel 561, the gear ring of the steering wheel 561 drives the gear 601 of the support rod 562 to rotate synchronously. Referring to fig. 15, the steering assembly 60 includes a steering gear plate 61 and a steering tie rod 62 that are linked with the steering gear plate, and in this embodiment, the steering gear plate 61 and the steering tie rod 62 are disposed below a vehicle frame 91. The turning gear disc 61 may be a sector gear disc, the sector includes two straight sides and an arc side 613, and a row of teeth is formed on the arc side 613 of the sector. The two straight sides include a first straight side 611 and a second straight side 612, the steering tie rod 62 includes a first tie rod 621 and a second tie rod 622, the first tie rod 621 is connected at the intersection of the first straight side 611 and the curved side 613, and the second tie rod 622 is connected at the intersection of the second straight side 612 and the curved side 613. In one embodiment, the steering fluted disc 61 is connected to the first pull rod 621 and the second pull rod 622 through ball shafts, respectively. The first tie rod 621 is connected to the knuckle 631L of the Zuo Di running wheel 931L by a ball axle, and the second tie rod 622 is connected to the knuckle 631R of the right first running wheel 931R by a ball axle. The ball axle allows a certain degree of freedom while linking the connecting parts, so that the turning operation is smoother. In the present embodiment, the knuckle 631L of the Zuo Di running wheel 931L and the knuckle 631R of the right first running wheel 931R are located below the front axle 934 in the up-down direction. The end of the support rod 562 connected to the steering assembly 60 is also fixedly provided with a gear 602, which gear 602 rotates in synchronism with the support rod 562 and thus with the steering wheel 561. The gear 602 meshes with a row of teeth of the arcuate edge 613 of the steering fluted disc 61. When the support rod 562 rotates, the gear 602 drives the steering gear 61 to rotate, and when the steering gear 61 rotates, the first pull rod 621 and the second pull rod 622 are driven. Further, the first tie rod 621 rotates the knuckle 631L of the Zuo Di running wheel 931L, and the second tie rod 622 rotates the knuckle 631R of the right first running wheel 931R. The knuckle is fixedly connected with the kingpin of the first traveling wheel, and controls the direction of the kingpin, thereby driving the first traveling assembly 931 to turn. Wherein, the knuckle 631L of the Zuo Di running wheel 931L is fixedly connected with the left kingpin 632L; knuckle 631R of right first running wheel 931R is fixedly coupled to right kingpin 632R. For example, when steering wheel 561 rotates counterclockwise, support bar 562 rotates counterclockwise therewith, gear 602 rotates counterclockwise causing steering gear disc 61 engaged therewith to rotate clockwise, so first pull rod 62 pushes knuckle 631L of one row of Zuo Di running wheels 931L outward, and second pull rod 622 pulls knuckle 631R of the right first running wheel 931R inward causing both left first running wheel 931L and right first running wheel 931R to deflect leftward, thereby driving mower 100 to turn leftward.

The mowing tractor 100 has a bisecting plane 1d, and the bisecting plane 1d extends in the front-rear direction. The steering assembly 60 is symmetrical about the bisecting plane 1d, and specifically, the first tie rod 621 and the second tie rod 622 are symmetrical pieces to each other, and the steering gear plate 61 itself is symmetrical about the bisecting plane 1 d. Therefore, the maximum steering angle of the Zuo Di traveling wheel 931L to the left is equal to the maximum steering angle of the right first traveling wheel 931R to the right; the maximum steering angle to the right of the Zuo Di running wheel 931L is equal to the maximum steering angle to the left of the right first running wheel 931R. Of course, the maximum steering angle of the Zuo Di row of the running wheels 931L to the left is greater than the maximum steering angle of the Zuo Di row of the running wheels 931L to the right, and the maximum steering angle of the right first row of the running wheels 931R to the right is greater than the maximum steering angle of the right first row of the running wheels 931R to the left. That is, the maximum steering angles of the Zuo Di row of running wheels 931L and the right first row of running wheels 931R are the same, and the maximum steering angle of the first row of running wheels to the outside of the mowing tractor 100 is greater than the maximum steering angle of the first row of running wheels to the inside of the mowing tractor 100. In one embodiment, the maximum steering angle of the first running wheel to the outside of the mowing tractor 100 is 60 ° or more; in one embodiment, the maximum steering angle of the first running wheel to the outside of the mowing tractor 100 is 65 ° or more; that is, the Zuo Di running wheels 931L have a maximum steering angle of 65 ° or more to the left and the right first running wheels 931R have a maximum steering angle of 65 ° or more to the right. In one embodiment, the maximum steering angle of the first travel assembly 931 to the inside of the mowing tractor 100 is 50 ° or more; in one embodiment, the maximum steering angle of the first travel assembly 931 to the inside of the mowing tractor 100 is 55 ° or more; that is, the Zuo Di traveling wheel 931L has a maximum steering angle to the right of 55 ° or more, and the right first traveling wheel 931R has a maximum steering angle to the left of 55 ° or more. At this time, the left turning minimum radius and the right turning minimum radius of the mowing tractor 100 are equal, and the turning minimum radius of the mowing tractor 100 is 90cm or less.

As shown in fig. 14 and 16A and 16B, the mowing tractor 100 further includes a support bracket 65 for supporting a support bar 562. The support frame 65 includes support legs 651, and the support legs 651 are fixed to the frame 91 by common members such as bolts. The supporting frame 65 limits and supports the supporting rod 562 at the middle part of the supporting rod 562, so that the rigidity and stability of the supporting rod 562 are improved, and the coaxiality of the gear 601 and the gear 602 is improved. In one embodiment, the vertical distance H7 between the supporting point of the supporting rod 562 of the supporting frame 65 and the plane 1g of the frame 91 is greater than or equal to 10cm and less than or equal to 35cm. In one embodiment, the vertical distance H7 between the supporting point of the supporting rod 562 of the supporting frame 65 and the plane 1g of the frame 91 is greater than or equal to 15cm and less than or equal to 30cm. In one embodiment, the vertical distance H7 from the support point of the support rod 562 by the support frame 65 to the plane 1g of the frame 91 is equal to 20cm. The support rods 562 and the support frame 65 are rotatably connected through the bearings 64, so that the rotation of the support rods 562 is smoother, and the steering force required by steering is reduced. In order to enhance the rigidity of the support frame 65, auxiliary support feet 652 and cross members 653 may be provided, wherein the two ends of the auxiliary support feet 652 are respectively connected to the support feet 651 and the longitudinal members of the frame 91, and the auxiliary support feet 652 are substantially parallel to the support bars 562; the cross beam 653 is erected between the two supporting legs 651 to play a reinforcing role. In the present embodiment, since the two-stage transmission mechanism of gear transmission and link transmission is adopted, a transmission ratio of 4 to 6, that is, a ratio of a rotation angle of the steering wheel 561 to a rotation angle of the first running wheel to the outside of the mowing tractor 100 is 4:1 to 6: 1. In one embodiment, the ratio of the rotation angle of the steering wheel 561 to the rotation angle of the first running wheel to the outside of the mowing tractor 100 is 4.7; in one embodiment, the ratio of the rotational angle of the steering wheel 561 to the rotational angle of the first running wheel to the outside of the mowing tractor 100 is 5.2.

Since the front wheel load of the mowing tractor 100 is small, that is, the load ratio of the first traveling assembly 931 and the second traveling assembly 932 is 1 or less, the steering force required for steering is small, and the user can easily operate the steering wheel to achieve steering. In one embodiment, a primary gear transmission, similar to a speed reducer, may be added to maximize the overall gear ratio, thereby further reducing the steering effort required for steering. In addition, the kingpin offset, which is the distance from the intersection of the extension line of the kingpin and the ground to the tire ground contact center, also affects the steering force required for steering. When the mower 100 is turned, the first running wheel is rotated about its kingpin. The resistance moment of the ground surface to steering is proportional to the size of the offset distance of the master pin. The smaller the kingpin offset, the smaller the steering resistance moment. Therefore, the small kingpin offset may reduce steering forces and impacts on the steering assembly 60. In the present embodiment, the kingpin offset distance is equal to 5cm, that is, the distance between the intersection point of the extension line of the kingpin of the Zuo Di traveling wheel 931L and the plane 1f on which the mowing tractor 100 is located and the intersection point of the Zuo Di traveling wheel 931L and the plane 1f on which the mowing tractor 100 is located is equal to 5cm; the distance between the intersection point of the extension line of the kingpin of the right first running wheel 931R and the plane 1f on which the mowing tractor 100 is located and the intersection point of the right first running wheel 931R and the plane 1f on which the mowing tractor 100 is located is equal to 5cm.

In one embodiment, steering assembly 60 further includes a linkage mechanism for driving second traveling assembly 932 to steer in synchronization with first traveling assembly 931. In one embodiment, the steering assembly 60 further includes an electric power steering device mounted to the support bar 562. The electric power steering apparatus includes a torque sensor, a controller, and a power motor. With the steering wheel 561 as an input end, the torque sensor converts the input torque into a voltage signal with linear change, the controller controls the power-assisted motor to rotate accordingly to provide steering power, and a speed reducing mechanism such as a worm gear and the like can be adopted to convert the rotation of the output shaft of the power-assisted motor into the rotation of the support rod 562. The electric power steering apparatus further includes an electromagnetic clutch that is disconnected to ensure safety when the power assist motor system fails. In one embodiment, the assist motor may also act on the steering fluted disc 61.

The seat 92 is mounted to the frame 91, the seat 92 being for seating by a user, the frame 91 carrying the seat 92. The seat 92 is secured to the frame by a seat support 94, and in particular, the seat support 94 includes a first metal tube 941 and a second metal tube 942. As shown in fig. 19, the first metal tube 941 and the second metal tube 942 are identical in shape and are arc-shaped metal tubes of inverted saddle shape, and a concave portion 943 in the middle and a rising edge 944 at both ends are formed, and in this embodiment, the first metal tube 941 and the second metal tube 942 are identical two members, and the first metal tube 941 and the second metal tube 942 are symmetrical about the bisecting plane 1 d. The first and

second metal tubes

941 and 942 are arranged in tandem parallel in a position below the seat 92. The concave portions 943 of the first metal tube 941 and the second metal tube 942 are fixedly connected to the frame 91 by fixing members, for example, two points of the concave portion 943 of the first metal tube 941 are respectively fixed to the first longitudinal beam 911 and the second longitudinal beam 912 by fixing members, which may be universal members such as bolts, and the specific structure of the fixing members is not limited in this application. Because the pipe diameters of the first metal pipe 941 and the second metal pipe 942 are smaller, and the cushion 921 of the seat 92 is erected on the concave portion 943 of the first metal pipe 941 and the second metal pipe 942, the seat 92 can be installed lower, the gravity center G of the whole mower is lowered, and the stability of the mower-tractor 100 is improved. As shown in fig. 2, in one embodiment, the vertical distance H4 of the seat cushion 921 to the plane 1g of the frame 91 is 40cm or less; in one embodiment, the vertical distance H4 of the seat cushion 921 to the plane 1g of the frame 91 is 37cm or less. In one embodiment, the vertical distance H6 of the seat cushion 921 to the plane 1f of the mowing tractor 100 is less than 73cm.

Rising edges 944 at both ends of the first metal tube 941 and the second metal tube 942 extend to the left and right sides of the mowing tractor 100, respectively. As shown in fig. 18, both ends of the second metal tube 942 positioned at the rear are positioned above the left and right

second road wheels

932L and 932R, respectively. Thus, as shown in fig. 2, the seat 92 is disposed above the second travel assembly 932. As shown in fig. 20, the left and right covers 21 and 22 are mounted to the seat support 94, or, in other words, the left and right covers 21 and 22 are supported by the seat support 94. It is noted that the support referred to herein includes both direct support and indirect support, with the assembly mounted on the seat support 94, supporting the left 21 and right 22 covers, or supporting covers that at least partially cover the second travel assembly 932, are within the scope of the present application.

The left cover 21 is provided with a first magazine 211 for storing objects. Specifically, the first storage box 211 may be provided in a shape for placing a cup, which is convenient for a user to place the cup. The first storage box 211 may also be rectangular, so as to facilitate the placement of sundries such as mobile phones. The first pod 211 may also be provided with a cover to prevent dust, clippings, etc. from entering the first pod 211.

As shown in fig. 17A, 17B and 18, the mowing tractor 100 further includes a cutterhead elevation assembly 70 for adjusting the height of the cutterhead 11 relative to the frame 91. Cutterhead elevation assembly 70 includes: gear assembly 71 and linkage assembly 72, gear assembly 71 includes adjustment member 711 and locating part 712, adjustment member 711 is used for the user to operate, and locating part 712 includes a plurality of gears for limiting adjustment member 711 in the gear of predetermineeing, and linkage assembly 72 connects gear assembly 71 and blade disc 11. Wherein the shift position assembly 71 is at least partially supported by the seat support 94. Specifically, both ends of the stopper 712 are fixed to the same side ends of the rising edges 944 of the first metal tube 941 and the second metal tube 942, respectively, that is, the stopper 712 spans the rising edges 944 of the first metal tube 941 and the second metal tube 942. In the present embodiment, both ends of the stopper 712 are fixed to right ends of the rising edges 944 of the first metal tube 941 and the second metal tube 942, respectively, by fixing members such as bolts. The right cover 22 is formed with a slot to allow the adjustment member 711 to be exposed and moved. When the user operates the adjusting member 711, the adjusting member 711 can move to different preset gear positions relative to the limiting member 712, and the linkage assembly 72 is driven by the adjusting member 711 to drive the cutter head 11 to change in height, so that the mowing tractor 100 has different cutting heights.

As shown in fig. 17B, the regulating member 711 includes: the adjustment knob 7111, the gear portion 7112, and the bent portion 7113. The adjustment member 711 passes through the right cover, the adjustment handle 7111 extends upward, the adjustment handle 7111 is used for user operation, the gear portion 7112 cooperates with the limiting member 712 such that the gear portion 7112 stays at the preset gear, and the bending portion 7113 bends the adjustment handle 7111 toward the main machine 100a to bring the linkage assembly 72 closer to the main machine 100a in the left-right direction with respect to the adjustment handle 7111. That is, the bent portion 7113 self-adjusts the bending of the handle 7111 toward the seat 92 such that the linkage assembly 72 is closer to the seat 92 in the left-right direction with respect to the adjustment handle 7111. An adjustment handle 7111 is provided above the right cover 22 so that the user can adjust the height of the cutterhead by sitting on the seat 92 without getting off. Also, because the bent portion 7113 is bent in the left-right direction toward the seat 92, the adjustment handle 7111 is allowed to be further away from the seat 92 than in the case where there is no bent portion 7113, so that when the user sits on the seat 92, there is enough urging space for pulling the adjustment handle 7111 by the hand and arm, without being so constricted. At the same time, the size of the adjustment handle 7111 can be increased as much as possible, so that the comfort of the user operating the adjustment handle 7111 is not reduced. For example, the length of the adjustment handle 7111 is 8 cm or more and 15 cm or less, such that the size of the adjustment handle 7111 is substantially the same as the width of the palm of the user, or the size of the adjustment handle 7111 is larger than the width of the palm of the user, thereby facilitating the grip of the user, for example.

When the user moves the adjustment member 711 to a different preset gear position relative to the limiting member 712, the adjustment member 711 drives the rotation connection member 726 of the linkage assembly 72 to rotate. The linkage assembly 72 further includes a linkage rod 721, a first mount 722, a second mount 723, and a first drive assembly 724 and a second drive assembly 725. Wherein, the first fixing member 722 is fixedly connected with the side wall 113 of the cutterhead 11, and the second fixing member 723 is fixedly connected with the top wall 112 of the cutterhead 11; alternatively, the first fixing member 722 is fixedly coupled to the top wall 112 of the cutterhead 11, and the second fixing member 723 is fixedly coupled to the side wall 113 of the cutterhead 11. One end of the second transmission assembly 725 is suspended on the second longitudinal beam 912, and the other end is fixedly connected with the rotary connecting piece 726; the second fixing member 723 is fixedly connected to the second transmission assembly 725, and when the second transmission assembly 725 moves, that is, the rotary connector 726 rotates, the height of the second fixing member 723 changes, thereby driving the height of the cutterhead 11 to change. One end of the first transmission component 724 is hung on the first longitudinal beam 911, and the other end is fixedly connected with the linkage rod 721; the first fixing member 722 is fixedly connected with the first transmission assembly 724, and when the first transmission assembly 724 moves, that is, the link lever 721 rotates, the height of the first fixing member 722 changes, so that the height of the cutterhead 11 is changed. In one embodiment, the first transmission assembly 724 and the second transmission assembly 725 are link mechanisms, wherein the first transmission assembly 724 may include a first spring 7241 for buffering vibration of the cutterhead 11 when the mowing tractor 100 is running and working; the second drive assembly 725 may include a second spring 7251 for dampening vibrations of the cutterhead 11 during travel and operation of the mowing tractor 100.

The link 721 is fixedly coupled to the rotary link 726 for synchronous rotation, and in one embodiment, the rotary link 726 rotates about the axis of the link 721. In this way, when the rotating connecting member 726 drives the second transmission assembly 725 to move, the linkage rod 721 also drives the first transmission assembly 724 to move, so that the first fixing member 722 and the second fixing member 723 apply force to the top wall 112 and the side wall 113 of the cutterhead 11 simultaneously, the height of the cutterhead 11 is more easily adjusted, and the stability of the connection between the cutterhead height adjusting assembly 70 and the cutterhead 11 is improved. In this embodiment, the link lever 721 is rotatably mounted to the first longitudinal beam 911 and the second longitudinal beam 912. In order to reduce the operating force required by the user to raise the height of the cutterhead 11, a booster spring may also be provided, which at least partially counteracts the weight of the cutterhead 11. In one embodiment, referring to fig. 17A, a tension spring 727 is coupled to the link 721, one end of the tension spring 727 is coupled to the boss arm 7211 of the link 721, and the other end of the tension spring 727 is coupled to the seat support, specifically, to the second metal tube 942. When the user operates the regulating member 711, the tension spring 727 is contracted, and the link lever 721 is rotated by the boss arm 7211, thereby reducing the operation force required when the user lifts the height of the cutterhead 11. In another embodiment, referring to fig. 17B, a biasing spring is provided on the link 721, specifically, the biasing spring includes a first torsion spring 7281 and a second torsion spring 7282. Wherein, first torsional spring 7281 and second torsional spring 7282 are respectively overlapped at the both ends of gangbar 721, and the both ends of first torsional spring 7281 are respectively with first longeron 911 and first drive assembly 724 articulates, and the both ends of second torsional spring 7282 are respectively with second longeron 912 and rotation connecting piece 726 articulates. When the user operates the adjustment member 711, the biasing force of the first torsion spring 7281 moves the first transmission assembly 724, thereby changing the height of the first fixing member 722; at the same time, the biasing force of the second torsion spring 7282 rotates the rotary link 726, thereby driving the second transmission assembly 725 to move, thereby changing the height of the second fixing member 723, thus reducing the operation force required by the user to raise the height of the cutterhead 11. The power assisting device has a compact power assisting structure, and can save a larger installation space.

The cutterhead 11 is connected to the grass collecting system 30 through the grass collecting barrel 32, a flip 115 is also connected to the side surface of the cutterhead 11, and the flip 115 has a first position and a second position. When the flap 115 is in the first position, the mowing tractor 100 is in a grass discharge mode, in which grass clippings cut by the cutting assembly 10 can be discharged through the flap 115 to the right of the mowing tractor 100. When the flap 115 is in the second position, the cutterhead 11 may be connected to the grass collection system 30 via the grass collection cartridge 32 while the mowing tractor 100 is in the grass collection mode so that grass clippings cut by the cutting assembly 10 may be discharged through the flap 115 to the grass basket. In the present embodiment, the adjusting member 711 and the limiting member 712 are disposed on the right side of the seat 92 under the support of the seat support member, the adjusting member 711 penetrates through the right cover member, and the adjusting handle 7111 extends upward, so that the gear assembly 71 is avoided from the flip 115 in the front-rear direction and the up-down direction, and the interference of the cutterhead height adjusting assembly 70 on the movement of the flip 115 is avoided.

As shown in fig. 21 and 22, grass collection system 30 includes a grass collection basket assembly 31, a grass collection cartridge 32, and a mounting assembly 33. The grass collecting basket assembly 31 is arranged at the rear side of the seat 92, the grass collecting basket assembly 31 is used for collecting grass scraps cut by the cutting assembly 10, the grass collecting barrel 32 is used for connecting the cutter head 11 and the grass collecting basket assembly 31, and the mounting assembly 33 is used for mounting the grass collecting basket assembly 31 on the frame 91. As shown in fig. 21 to 22, the grass collecting basket assembly 31 includes: a grass basket body 311 and a grass basket cover 312, the grass basket body 311 surrounds a grass collecting space for accommodating grass clippings, and the grass basket cover 312 covers an opening of the grass basket body 311 which is opened upward. The grass basket cover 312 and the grass basket body 311 may be connected together by a clamping structure.

The grass catcher 32 is formed with a channel 321 extending along an extension line 1k, the extension line 1k being substantially curved, that is, the channel 321 extending substantially along a curve, so that smoothly guided clippings move from the cutterhead 11 into the grass basket body 311. The grass collecting barrel 32 comprises a first end face 322 and a second end face 323 which are arranged at two ends of the extension line 1k, the first end face 322 of the grass collecting barrel 32 is connected with the cutter head 11 so that the mowing space 121 and the channel 321 are communicated, and the second end face 323 of the grass collecting barrel 32 is connected with the grass collecting basket assembly 31 so that the channel 321 is communicated with the grass collecting space in the grass collecting basket assembly 31. In one embodiment, a distance D1 between a center point of first end surface 322 and grass collection basket assembly 31 in a fore-aft direction of mower tractor 100 is less than or equal to 130cm; in one embodiment, a distance D1 between a center point of first end surface 322 and grass collection basket assembly 31 in a fore-aft direction of mower tractor 100 is less than or equal to 110cm. Meanwhile, in order to make the grass scraps smoothly transferred from the lower part of the cutter head 11 to the grass basket main body 311 through the channel 321, the raising angle of the grass collecting barrel 32 should not be too large, in an embodiment, an included angle α between a line connecting the center point of the first end face 322 and the center point of the second end face 323 and a plane 1g of the frame 91 is greater than or equal to 20 ° and less than or equal to 35 °; in one embodiment, the angle α between the line connecting the center point of the first end face 322 and the center point of the second end 323 and the plane 1g of the frame 91 is equal to 30 °. While guaranteeing low distance and inclination, in order to make grass bits get into grass collection section of thick bamboo 32 smoothly from blade disc 11, do not influence the entering speed of end grass bits, grass collection section of thick bamboo 32 connects the one end of blade disc 11 and is formed with a smooth triangle area 327, and like this, the straight line is advanced and need not to turn when grass bits get into grass collection section of thick bamboo 32. Meanwhile, the flattened triangular area 327 promotes the lowest point of the grass collecting barrel 32, and reduces the collision between the grass collecting barrel 32 and the sundries on the ground. It should be understood that triangular region 327 is intended to mean that the flattened portion presents a generally triangular shape, and in fact, the three sides of region 327 are not necessarily straight lines. In one embodiment, the triangular region 327 has an area of 26 square centimeters or more and 31 square centimeters or less.

The grass collecting barrel 32 further comprises an observation portion 324 for a user to observe to judge whether the grass collecting basket assembly 31 is full of grass, the observation portion 324 surrounds the extension line 1k, that is, the extension line 1k passes through the observation portion 324, the observation portion 324 surrounds the extension line 1k, that is, the observation portion 324 is an annular window, so that the user can conveniently judge whether the grass collecting basket assembly 31 is full of grass when sitting on the seat 92, and can conveniently observe to judge whether the grass collecting basket assembly 31 is full of grass when sitting on the right side of the mowing tractor 100. The length of the annular window in the direction of the extension line 1k is 50 mm or more and 150 mm or less, so that the size of the annular window is large enough, thereby facilitating the observation of a user. The viewing portion 324 is made of a see-through material, and a user can determine whether the grass collecting basket assembly 31 is full of grass by directly viewing whether the grass collecting barrel 32 is full of grass. As shown in fig. 4, the viewing portion 324 is disposed on the right side of the seat 92, and the grass catcher 32 extends from the right side of the cutterhead 11 to the right side of the grass catcher basket assembly 31. The observation portion 324 is also provided on the front side of the backrest 922 such that when the user sits on the seat 92, the observation portion 324 is provided in front of the right of the user, so that the user can see the observation portion 324 with the afterlight while driving the mowing tractor 100 without having to look back, avoiding affecting the driving safety.

In some embodiments, as shown in fig. 21 and 22, grass collection cartridge 32 includes: the first connecting section 325 and the second connecting section 326, the first connecting section 325 is connected with the grass-collecting basket assembly 31, the second connecting section 326 is connected with the cutterhead 11, the first connecting section 325 and the second connecting section 326 can be made of the same material, the observation portion 324 is arranged between the first connecting section 325 and the second connecting section 326 and connects the first connecting section 325 and the second connecting section 326, and the observation portion 324 can be made of another material different from the first connecting section 325. Dividing the grass collection canister 32 into the first connecting section 325 and the second connecting section also facilitates storage and transportation and reduces costs.

The grass basket body 311 is provided at the back of the seat, and the grass basket body 311 protrudes rearward from the seat 92 in the front-rear direction along the mowing tractor 100. In this way, the grass basket body 311 can protect the seat 92 and the user, thereby making the structure of the mowing tractor 100 more reliable and the service life longer. The grass basket main body 311 protrudes at least partially backwards from the rear bumper in the front-rear direction of the mowing tractor 100, so that on one hand, when the mowing tractor 100 collides with an obstacle in the backward walking process, the grass basket collecting device can play a certain role in buffering, thereby achieving the aim of protecting the seat; on the other hand, the grass catcher basket device protrudes rearward from the rear bumper and also moves the center of gravity of the entire mowing tractor 100 rearward, thereby improving the stability of the mowing tractor 100. In addition, the grass basket body 311 protrudes from the seat back 922 in the left-right direction of the mowing tractor 100, so that the grass basket body 311 is not too narrow and too small to meet the grass collecting demand.

In one embodiment, as shown in fig. 20, the grass basket body 311 includes: the first and second

grass basket portions

3112 and 3113, the first grass basket portion 3112 surrounds the first chamber, the second grass basket portion 3113 surrounds the second chamber, the first and second

grass basket portions

3112 and 3113 are symmetrically disposed about a plane, a distance between the plane and the first longitudinal beam 911 is smaller than a distance between the plane and the second longitudinal beam 912, that is, the plane is not disposed at an intermediate position of the first and second

longitudinal beams

911 and 912, such that the grass basket body 311 protrudes leftward from the frame 91. Such a design allows enough space on the right side of mower tractor 100 to position grass collection canister 32, thereby allowing grass collection canister 32 to be connected from the right side of grass collection basket assembly 31 to grass basket cap 312. In another embodiment, the grass basket body 311 includes only one large chamber that is also positioned offset to the left of the mower tractor 100 such that the grass basket body 311 protrudes to the left from the frame 91 such that there is sufficient space to place the grass catcher 32 to the right of the mower tractor 100. Generally, the grass basket body 311 does not protrude from the left and right

second road wheels

932L, 932R in the left-right direction along the mowing tractor 100 for overall size and flexibility, safety considerations.

The grass basket cap 312 includes: a rotation part 3123 and a fixing part 3124, the rotation part 3123 is rotatably connected with the mounting assembly 33, and the fixing part 3124 is fixedly connected with the mounting assembly 33. When the rotation part 3123 is opened by the user, the grass basket main body 311 is opened upward so that the user can more directly observe the grass clippings inside the first grass basket part 3112 and the second grass basket part 3113. As shown in fig. 21 and 22, the fixing portion 3124 of the grass basket cover 312 is further formed with a grass collecting barrel receiving opening 3121 into which the grass collecting barrel 32 is inserted, and an annular rubber ring 3122 is further provided at the connection between the grass collecting barrel receiving opening 3121 and the grass collecting barrel, and after the grass collecting barrel 32 extends into the grass collecting barrel receiving opening 3121, the rubber ring 3122 surrounds the grass collecting barrel 32, thereby achieving a better vibration reduction effect. The fixing portion 3124 of the grass basket cover 312 protrudes from the grass basket body 311, and further, the grass collecting barrel receiving opening 3121 protrudes from the grass basket body 311 and is inclined forward and downward, so that the grass collecting barrel 32 can be smoothly connected to the grass collecting basket assembly 31, and the grass collecting efficiency is improved. In one embodiment, the included angle beta between the connection surface of the grass-collecting barrel receiving port 3121 and the grass-collecting barrel 32 and the plane 1g of the frame 91 is greater than or equal to 50 ° and less than or equal to 70 °; in one embodiment, the angle β between the connection surface of the grass-collecting cylinder receiving port 3121 and the grass-collecting cylinder 32 and the plane 1g of the frame 91 is equal to 60 °.

As shown in fig. 23, the mounting assembly 33 includes: mount 331 and connecting rod assembly 334, in one embodiment, mount 331 includes a first mount 332 and a second mount 333, and first mount 332 and second mount 333 are symmetrical. The first mount 332 is mounted to the first longitudinal beam 911, the second mount 333 is mounted to the second longitudinal beam 912, the first mount 332 is further formed with a first mounting hole 3321, the second mount 333 is further formed with a second mounting hole 3331, and the link assembly 334 includes a first link lever 3341 detachably inserted into the first mounting hole 3321 and a second link lever 3342 detachably inserted into the second mounting hole 3331. The tie rod assembly 334 further includes: an intermediate lever 3343, the intermediate lever 3343 being disposed between the first and

second connection levers

3341 and 3342 to connect the first and

second connection levers

3341 and 3342. The first and second connection bars 3341 and 3342 are independent of each other and correspond to the first and second mounting

holes

3321 and 3331, respectively, so that the entire grass collecting system 30 is more easily installed. Thus, when installing the grass collecting basket assembly 31, the first connecting rod 3341 can be inserted into the first mounting hole 3321, the second connecting rod 3342 can be inserted into the second mounting hole 3331, and then both the first connecting rod 3341 and the second connecting rod 3342 are connected through the middle rod 3343, so that the fixed connection of the first connecting rod 3341 and the second connecting rod 3342 is realized, the connecting rod assembly 334 can be stably installed to the frame 91, and finally the fixing part 3124 of the grass collecting basket cover 312 is connected to the connecting rod assembly 334, so that the grass collecting basket assembly 31 can be installed to the frame 91 through a simple operation.

The first connecting rod 3341 extends along a straight line, the second connecting rod 3342 also extends along a direction parallel to the extending direction of the first connecting rod 3341, and in this embodiment, both the first connecting rod 3341 and the second connecting rod 3342 extend along a vertical straight line 1n, the vertical straight line 1n is parallel to the bisecting plane 1d, and the vertical straight line 1n is also perpendicular to the transverse straight line 1e. The intermediate lever 3343 has a U-shape, and the intermediate lever 3343 includes: a left connecting portion 3344, a right connecting portion 3345, and an intermediate portion 3346, wherein the left connecting portion 3344 is connected to the first connecting rod 3341, the right connecting portion 3345 is connected to the second connecting rod 3342, and the intermediate portion 3346 connects the left connecting portion 3344 and the right connecting portion 3345. In one embodiment, the left side connection portion 3344 is connected to the first connection rod 3341 by a screw; the right side connection portion 3345 is connected to the second connection bar 3342 by a screw. In this way, the intermediate rod 3343 can serve the purpose of connecting the first connecting rod 3341 and the second connecting rod 3342, so that the first connecting rod 3341 and the second connecting rod 3342 are relatively fixed in the direction of the transverse straight line 1e, and on the other hand, the intermediate rod 3343 can also serve the function of reinforcing the mounting assembly 33, so that the problem of insufficient strength of the first connecting rod 3341 and the second connecting rod 3342 is avoided.

The first mount 332 includes: a first coupling portion 3324, a first mounting post 3322, and a first extension portion 3323; the second mount 333 includes a second coupling portion 3334, a second mounting post 3332, and a second extension portion 3333. The first mounting post 3322 forms the first mounting hole 3321 described above; the second mounting post 3332 forms the second mounting hole 3331 described above. The first engaging portion 3324 is caught on the first longitudinal beam 911, and in one embodiment, the first engaging portion 3324 is pressed against the first longitudinal beam 911 using a long screw. The second engaging portion 3334 is snapped onto the second longitudinal member 912, and in one embodiment, a long screw is used to compress the second engaging portion 3334 onto the second longitudinal member 912. The first extension portion 3323 extends from the first coupling portion 3324 in a direction away from the first side member 911, for example, to the left and rear sides of the mowing tractor 100, and in one embodiment, the first extension portion 3323 is a 90-degree bent metal pipe. The second extension portion 3333 extends from the second coupling portion 3334 in a direction away from the second side member 912, for example, to the right and rear sides of the mowing tractor 100, and in one embodiment, the second extension portion 3333 is a 90-degree bent metal pipe. The first and second mounting

seats

332 and 333 extend to both sides and the rear side of the mowing tractor 100, which is advantageous in increasing the mounting space, facilitating the mounting operation, and widening the distance between the left and right support structures, thereby increasing the stability. The first coupling portion 3324, the first mounting post 3322, and the first extension portion 3323 are welded as one body, and the second coupling portion 3334, the second mounting post 3332, and the second extension portion 3333 are welded as one body. The connection of the first mounting post 3322 and the first extension portion 3323 may be formed with a reinforcing rib, and the connection of the second mounting post 3332 and the second extension portion 3333 may be formed with a reinforcing rib. In this way, the strength of the first mount 332 and the second mount 333 can be improved. In this way, the first mount 332 and the second mount 333 bear the weight of the grass collection system 30 at the rear side of the seat 92, and the stress distribution borne by the first mount 332 and the second mount 333 is relatively uniform, thereby improving the service life of the mowing tractor 100.

In the present embodiment, the first mount 332 and the second mount 333 are simple in structure, and the first mount 332 and the second mount 333 are symmetrical members. The first mounting seat forms a first mounting hole 3321 and the second mounting seat forms a second mounting hole 3331, the first mounting hole 3321 and the second mounting hole 3331 allowing the grass collection system 30 to be mounted to the frame 91. The first mount 332 and the second mount 333 are highly versatile and can be applied to the sunshade assembly 35 shown in fig. 24. The sunshade assembly 35 includes a sunshade assembly 351 and a mounting assembly 352 for mounting the sunshade assembly 351 to the mowing tractor 100. The sunshade assembly 351 includes: sunshade cover 3511. The mounting assembly 352 includes: a support seat 3521 and a connecting rod assembly, the support seat 3521 being used for supporting the sunshade cover 3511, the connecting rod assembly comprising a first connecting rod 3522, a second connecting rod 3523 and an intermediate rod 3524. The support 3521 is connected to the connecting rod assembly, and the first connecting rod 3522 and the second connecting rod 3523 form a detachable connection that enables mutual detachment. In some embodiments, the intermediate rod 3524 forms a detachable connection with the first and second connecting

rods

3522, 3523, respectively. The first and

second connection rods

3522 and 3523 are inserted into the first and second mounting

holes

3321 and 3331, respectively, to thereby mount the sunshade assembly 351 to the frame 91.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A mowing tractor comprising:

a seat for seating a user, the seat comprising a seat cushion and a backrest;

a frame for supporting the seat;

a cutting assembly including a mowing element for mowing, the cutting assembly mounted to the frame;

the walking assembly is used for driving the mowing tractor to walk on a plane;

the power supply assembly is used for supplying power to the cutting assembly and the walking assembly;

a front cover positioned in front of the mowing tractor for covering the power assembly;

The seat cushion is characterized in that the vertical distance from the seat cushion to the plane is less than 73cm.

2. The mowing tractor of claim 1, wherein a center of gravity of the mowing tractor is lower than the seat cushion in an up-down direction.

3. The mowing tractor of claim 1, wherein the power assembly comprises a built-in battery module or at least one battery pack.

4. A mowing tractor as in claim 3, wherein the travelling assembly comprises at least a first travelling wheel, and wherein a height difference between a highest point of the built-in battery cell or battery pack furthest from the seat and a center point of the first travelling wheel is less than or equal to 45cm.

5. A mowing tractor according to claim 3, wherein a vertical distance of a highest point of the built-in cell module or the battery pack furthest from the seat in the built-in cell module or the at least one battery pack from the plane is 63cm or less.

6. The mowing tractor of claim 1, wherein a perpendicular distance of a plane of the frame from the plane is greater than or equal to 35cm and less than or equal to 37cm.

7. The mowing tractor of claim 1, wherein a height difference between the seat cushion and the frame is 40cm or less.

8. The mowing tractor of claim 1, wherein a difference in height between a lowest point of the steering wheel and the seat cushion is 24cm or more.

9. The mowing tractor of claim 3, wherein the built-in battery module is disposed behind the at least one battery pack.

10. The mowing tractor of claim 9, wherein the power assembly further comprises a battery management circuit board disposed above the built-in battery module.