Riding lawn mowing equipment

Abstract

The present invention discloses a riding lawn mowing device, comprising: a seat for a user to sit on, the seat comprising a seat cushion and a backrest; a frame supporting the seat; a walking assembly for driving the riding lawn mowing device to move; a cutting assembly comprising a blade disc and a mowing element for mowing grass, the mowing element being at least partially accommodated in the blade disc, and the cutting assembly being mounted to the frame; a grass collecting basket assembly for collecting grass clippings cut by the cutting assembly, the grass collecting basket assembly being detachably mounted behind the backrest of the seat; a grass collecting barrel, the grass collecting barrel connecting the grass collecting basket assembly and the blade disc; the grass collecting barrel comprising a first end face and a second end face, the first end face being connected to the blade disc, the second end face being connected to the grass collecting basket assembly, the angle between a line connecting a center point of the first end face and a center point of the second end face and the plane of the frame being greater than or equal to 20° and less than or equal to 35°, and the distance between the center point of the first end face and the grass collecting basket assembly in the front-to-rear direction of the riding lawn mowing device being less than or equal to 130 cm.

Description

Technical Field

[0001] The present application relates to a garden tool, for example, to a riding lawn mowing device. Background Art

[0002] As a garden tool, riding lawn mowers are widely used in fields such as mowing lawns and vegetation. Compared with push lawn mowers, lawn mower tractors are more labor-saving and more efficient in mowing. On the market, lawn mower tractors usually use diesel as their energy supply, which is not only noisy and pollutes the environment, but also requires frequent replacement of wearing parts in the fuel system, resulting in increased maintenance costs. In addition, due to the large size of fuel engines, lawn mower tractors on the market usually have higher front covers, resulting in larger blind spots in front; in addition, due to the large weight of fuel engines, lawn mower tractors on the market usually have heavier front wheel loads, making steering difficult and inflexible. Summary of the Invention

[0003] In order to solve the above problems, the present application discloses a riding lawn mowing device, including: a seat for a user to sit on, the seat including a seat cushion and a backrest; a frame supporting the seat; a walking assembly for driving the riding lawn mowing device to move; a cutting assembly including a blade disc and a mowing element for mowing grass, the mowing element is at least partially accommodated in the blade disc, and the cutting assembly is mounted to the frame; a grass collecting basket assembly for collecting grass clippings cut by the cutting assembly, the grass collecting basket assembly is detachably mounted behind the backrest of the seat; a grass collecting barrel, the grass collecting barrel connecting the grass collecting basket assembly and the blade disc; the grass collecting barrel includes a first end face and a second end face, the first end face is connected to the blade disc, and the second end face is connected to the grass collecting basket assembly, the angle between the line connecting the center point of the first end face and the center point of the second end face and the plane of the frame is greater than or equal to 20° and less than or equal to 35°, and the distance between the center point of the first end face and the grass collecting basket assembly in the front and rear directions of the riding lawn mowing device is less than or equal to 130 cm.

[0004] In one embodiment, the end of the grass collecting cylinder connected to the cutter disc has a flat triangular area.

[0005] In one embodiment, the area of ​​the triangular region is greater than or equal to 26 square centimeters and less than or equal to 31 square centimeters.

[0006] In one embodiment, the grass collecting basket assembly includes a grass basket body and a grass basket cover. A grass collecting tube receiving opening is formed on the grass basket cover, and the grass collecting tube receiving opening protrudes from the grass basket body.

[0007] In one embodiment, the angle formed by the connecting surface between the grass collecting tube receiving port and the grass collecting tube and the plane where the frame is located is greater than or equal to 50° and less than or equal to 70°.

[0008] In one embodiment, the riding lawn mowing device further comprises a mounting base, which is detachably mounted on the vehicle frame and is used for mounting various auxiliary accessories.

[0009] In one embodiment, the grass collecting basket assembly includes a grass collecting basket connecting rod, which can be fixed to the mounting seat.

[0010] In one embodiment, the riding lawn mowing device further comprises a sunshade assembly, wherein the sunshade assembly comprises a sunshade connecting rod, and the sunshade connecting rod can be fixed to the mounting seat.

[0011] In one embodiment, the mounting seat includes a first mounting seat and a second mounting seat, the vehicle frame includes a first longitudinal beam and a second longitudinal beam, the first mounting seat is mounted to the first longitudinal beam, and the second mounting seat is mounted to the second longitudinal beam.

[0012] In one embodiment, the grass collecting tube further includes an observation portion, which is made of a transparent material for a user to observe and judge whether the grass collecting basket assembly is full of grass.

[0013] The riding lawn mowing equipment disclosed in the present application has a detachable grass collecting basket, and the grass collecting cylinder connecting the grass collecting basket and the cutter disc has a small angle with the ground, so the grass collection is smooth and efficient and not prone to clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of a lawn mowing tractor according to an embodiment of the present application;

[0015] Figure 2 yes Figure 1 Side view of a mowing tractor in;

[0016] Figure 3 yes Figure 1 Bottom view of the mowing tractor in the video;

[0017] Figure 4 yes Figure 1 Side view of a mowing tractor with a grass collection system installed;

[0018] Figure 5 yes Figure 1 A perspective view of a lawn mowing tractor with its front cover opened;

[0019] Figure 6 yes Figure 1 A side view of a lawn mowing tractor with its front cover opened;

[0020] Figure 7A is a schematic diagram of a power supply assembly according to one embodiment of the present application;

[0021] Figure 7B is a schematic diagram of a power supply assembly according to another embodiment of the present application;

[0022] Figure 7C is a schematic diagram of a power supply assembly according to another embodiment of the present application;

[0023] Figure 8A is a perspective view of a lawn mowing tractor according to another embodiment of the present application with its front cover opened;

[0024] Figure 8B is a perspective view of a lawn mowing tractor according to another embodiment of the present application with its front cover opened;

[0025] Figure 8C is a perspective view of a lawn mowing tractor according to another embodiment of the present application with its front cover opened;

[0026] Figure 9A is a schematic diagram of a power supply assembly and storage space according to an embodiment of the present application;

[0027] Figure 9B is a schematic diagram of a power supply assembly and storage space of another embodiment of the present application;

[0028] Figure 9C is a schematic diagram of a power supply assembly and storage space of another embodiment of the present application;

[0029] Figure 9D is a schematic diagram of a power supply assembly and storage space of another embodiment of the present application;

[0030] Figure 9E is a schematic diagram of a power supply assembly and storage space of another embodiment of the present application;

[0031] Figure 9F is a schematic diagram of a power supply assembly and storage space of another embodiment of the present application;

[0032] Figure 10 yes Figure 1 A perspective view of a partial structure of a lawn mowing tractor;

[0033] Figure 11 yes Figure 1 A perspective view of a control panel of a lawn mowing tractor;

[0034] Figure 12 yes Figure 1 A perspective view of a lawn mowing tractor with the pedals removed;

[0035] Figure 13 is a system schematic diagram of a lawn mowing tractor according to an embodiment of the present application;

[0036] Figure 14 yes Figure 1 A perspective view of a steering assembly of a lawn mowing tractor;

[0037] Figure 15 yes Figure 14 A bottom view of the steering assembly in FIG.

[0038] Figure 16A yes Figure 14 A front view of the support rod and support frame of the steering assembly;

[0039] Figure 16B yes Figure 14 A cross-sectional view of the support rod and support frame of the steering assembly;

[0040] Figure 17A is a perspective view of a cutter head height adjustment assembly according to an embodiment of the present application;

[0041] Figure 17B is a perspective view of a cutterhead height adjustment assembly according to another embodiment of the present application;

[0042] Figure 18 yes Figure 17A A side view of the structure in FIG.

[0043] Figure 19 is a front view of a seat support member according to an embodiment of the present application;

[0044] Figure 20 yes Figure 1 A perspective view of a partial structure of a lawn mowing tractor;

[0045] Figure 21 yes Figure 4 A perspective view of the grass collecting system and cutting assembly of a mowing tractor;

[0046] Figure 22 yes Figure 21 A side view of the structure in FIG.

[0047] Figure 23 is a perspective view of a mounting assembly according to an embodiment of the present application;

[0048] Figure 24 It is a three-dimensional diagram of a sunshade assembly according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] like Figure 1 As shown, the riding lawn mowing device of the present disclosure is a lawn mowing tractor 100 , which can be operated by a user to mow lawns and other vegetation.

[0050] In this specification, the directions of front, back, left, right, up and down are described as attached. Figure 1Specifically, when the user rides on the lawn mowing tractor 100 located on the ground, the direction the user is facing is defined as the front, the direction facing away is defined as the back, the direction on the left hand side is defined as the left, the direction on the right hand side is defined as the right, the direction close to the ground is defined as the bottom, and the direction away from the ground is defined as the top.

[0051] like Figures 1 to 4 As shown, the lawn mower tractor 100 includes a cutting assembly 10, a frame 91, a seat 92, a housing system 20, a travel assembly 93, a power supply assembly 96, a lighting system 40, and an operating assembly 50. The frame 91 and housing system 20 constitute the main unit 100a of the lawn mower tractor 100. The main unit 100a is used to mount the cutting assembly 10, the seat 92, the power supply assembly 96, and the lighting system 40. The travel assembly 93 supports the main unit 100a. The lawn mower tractor 100 uses a power assembly to provide energy for the cutting assembly 10, the travel assembly 93, the lighting system 40, and other components. In this embodiment, the power assembly of the lawn mower tractor 100 is the power supply assembly 96, which provides electrical energy to various components of the lawn mower tractor 100, enabling the lawn mower tractor 100 to be used as an electric tool. Compared to gasoline-powered lawn mower tractors 100, electric lawn mower tractors 100 are more environmentally friendly and energy-efficient.

[0052] The cutting assembly 10 is used to output power to realize the function of the mowing tractor 100. The cutting assembly 10 serves as a power output component, and the main unit 100a supports the power output component. The cutting assembly 10 includes: a cutter disc 11, a mowing element 12, and a first motor 13. The mowing element 12 is used to cut vegetation while rotating at high speed. For example, the mowing element 12 is a blade used to cut grass on the lawn. The cutter disc 11 is surrounded by a mowing space 121 for accommodating at least part of the mowing element 12. In other words, the mowing element 12 is at least partially accommodated in the cutter disc 11. The first motor 13 is used to drive the mowing element 12 to rotate. Figure 3 As shown, the cutting assembly 10 is arranged below the frame 91. In one embodiment, the number of mowing elements 12 may be 2, and the number of first motors 13 may be 2. Accordingly, two first motors 13 drive two mowing elements 12 respectively. In one embodiment, the number of mowing elements 12 may be 3, and the number of first motors 13 may be 3. Accordingly, three first motors 13 drive three mowing elements 12 respectively. The mowing element 12 is located in a mowing space 121 formed by the cutter disc 11. The mowing space 121 is open downward, so that the mowing element 12 can cut the vegetation located below the mowing space 121. As shown in FIG. Figure 4As shown, the lawn mower tractor 100 may also include a grass collection system 30, which can be optionally installed by the user. The grass collection system 30 is used to collect grass clippings cut by the cutting assembly 10. The grass collection system 30 includes a grass collection basket assembly 31, which is removably mounted behind the seat 92. The seat 92 includes a seat cushion 921 and a backrest 922. The seat cushion 921 is used for seating, and the backrest 922 is used to support the user's back. Therefore, it can be said that the grass collection basket assembly 31 is mounted behind the backrest 922.

[0053] like Figures 8A-8C As shown, the cutting assembly 10 can also be disassembled from the mowing tractor 100, and in this case, the mowing tractor 100 can be connected to other working attachments, such as a snow shovel assembly. The snow shovel assembly includes a snow shovel and a snow shovel angle adjustment device, and the snow shovel assembly can be mounted on the frame 91. At this point, strictly speaking, the mowing tractor 100 is no longer just a riding mowing device, but a riding vehicle that can perform different tasks depending on the different working attachments connected. In one embodiment, the mowing tractor 100 has at least one working attachment interface, such as a hook, thread, hole, groove, etc. Since the frame 91 has a strong load-bearing capacity, at least one working attachment interface can be formed on or fixed to the frame 91. Different working attachment interfaces are used to match different working attachments, and the same working attachment interface can also match different working attachments.

[0054] The frame 91 extends generally in the front-to-back direction. The cutting assembly 10, housing system 20, travel assembly 93, power supply assembly 96, grass collection system 30, and lighting system 40 are all mounted to the frame 91. The frame 91 supports the main unit 100a of the lawn mower tractor 100. The travel assembly 93 supports the frame 91, enabling the lawn mower tractor 100 to move over the ground. The travel assembly 93 includes a first travel assembly 931 and a second travel assembly 932. In this embodiment, the first travel assembly 931, or the front travel assembly, includes two first travel wheels (front wheels), namely, a left first travel wheel 931L and a right first travel wheel 931R. The second travel assembly 932, or the rear travel assembly, includes two second travel wheels (rear wheels), namely, a left second travel wheel 932L and a right second travel wheel 932R. The radius of the second travel wheels is greater than that of the first travel wheels. The left first running wheel 931L and the right first running wheel 931R are connected by a front axle 934; the left second running wheel 932L and the right second running wheel 932R are connected by a rear axle. The running assembly 93 also includes a second motor 933 for driving the second running assembly 932. In one embodiment, the rear axle also includes a differential. When the mowing tractor 100 turns or travels on uneven roads, the differential allows the left second running wheel 932L and the right second running wheel 932R to rotate at different speeds when driven by the second motor 933.

[0055] See also Figure 14 and Figure 15 The frame 91 includes longitudinal beams and transverse beams. In some embodiments, the frame 91 includes two longitudinal beams, namely a first longitudinal beam 911 and a second longitudinal beam 912. The frame 91 also includes two transverse beams, namely a first transverse beam 913 and a second transverse beam 914. The first longitudinal beam 911 is located to the left of the seat 92, and the second longitudinal beam 912 is located to the right of the seat 92. The first longitudinal beam 911 extends along a first straight line 1b, and the second longitudinal beam 912 extends along a second straight line 1c. Both the first and second straight lines 1b and 1c are parallel to the center plane 1d of the lawn mower tractor 100. In this embodiment, the first and second longitudinal beams 911 and 912 extend parallel to each other. In this embodiment, the plane passing through the first and second straight lines 1b and 1c, i.e., the plane 1g on which the frame 91 lies, is defined as the reference plane of the lawn mower tractor 100. When the lawn mower tractor 100 is traveling on the ground, i.e., the plane 1f, the reference plane 1g is parallel to the plane 1f. Specifically, because the frame 91 itself has a certain thickness, the plane 1g of the frame 91 referred to herein refers to the plane of the upper edge of the frame 91. A first crossbeam 913 is disposed in front of the seat 92. The first crossbeam 913 is positioned substantially at the front end of the lawn mower tractor 100. Thus, the first crossbeam 913 also serves as a front bumper, protecting the front end of the lawn mower tractor 100 from damage. In one embodiment, the first crossbeam 913 is formed with a recess to at least partially accommodate the front axle 934. The front axle 934 can also be secured to the front axle 934 using bolts or other fastening devices. The first crossbeam 913 and the second crossbeam 914 are positioned substantially at the rear end of the lawn mower tractor 100. Thus, the second crossbeam 914 also serves as a rear bumper, protecting the rear end of the lawn mower tractor 100 from damage. At least portions of the first crossbeam 913 and the second crossbeam 914 extend along a transverse line 1e, which extends in the left-right direction. In this embodiment, the first and second crossbeams 913 and 914 extend parallel to each other, while the transverse line 1e is perpendicular to the first and second lines 1b and 1c. In this embodiment, the frame 91 is relatively low, thereby lowering the center of gravity of the entire lawn mower tractor 100 and ensuring smooth travel. In one embodiment, the vertical distance H5 between the plane 1g of the frame 91 and the plane 1f of the lawn mower tractor 100 is greater than or equal to 35 cm and less than or equal to 37 cm.

[0056] The housing system 20 includes a left cover 21, a right cover 22, and a front cover 23. The front cover 23 is provided at the front of the mowing tractor 100 and is the front face of the mowing tractor 100. The front cover 23 covers and forms a front receiving chamber 231. In one embodiment, Figure 5As shown, the front cover 23 includes a separately molded upper cover 232 and a baffle 233. After the upper cover 232 and the baffle 233 are assembled above the frame 91, they together form a front accommodating cavity 231. In another embodiment, the front cover 23 is an integrally molded half-enclosed structure. After the half-enclosed structure is assembled above the frame 91, the front accommodating cavity 231 is formed. The front cover 23 is preferably a metal part. In this way, on the one hand, it can facilitate the heat dissipation of the power supply component 96, and on the other hand, it can also increase the strength of the front housing. Of course, the front cover 23 can also be made of plastic material to save costs. This application does not limit the specific structure and material of the front cover 23. The left cover 21 is arranged on the left side of the seat 92, and the right cover 22 is arranged on the right side of the seat 92. In one embodiment, the left cover 21 at least partially covers the left second running wheel 932L, and the right cover 22 at least partially covers the right second running wheel 932R. The left cover 21 and the right cover 22 can be two separately formed parts, or they can be one integrally formed part, that is, the left cover 21 and the right cover 22 are connected together to form a cover, and this cover as a whole at least partially covers the second walking assembly 932. The specific structure and material of the left cover 21 and the right cover 22 are not limited in this application.

[0057] In one embodiment, the lighting system 40 includes a front lighting assembly 42, a left lighting assembly 43, and a right lighting assembly 44. In one embodiment, the lighting system 40 also includes a rear lighting assembly. The left lighting assembly 43 is located on the left side of the seat 92, the right lighting assembly 44 is located on the right side of the seat 92, and the rear lighting assembly is located behind the seat 92. Specifically, the front lighting assembly 42 is mounted to the front cover 23 and includes a front lamp 421. The left lighting assembly 43 is mounted to the left cover 21 and includes a left lamp. The right lighting assembly 44 is mounted to the right cover 22 and includes a right lamp. In this way, the front lighting assembly 42 can illuminate the area in front of the lawn mower tractor 100. The left and right lighting assemblies 43 and 44 can serve as position marker lights for the lawn mower tractor 100, making it easier for people nearby to see the outline of the lawn mower tractor 100.

[0058] The power supply assembly 96 is used to provide power to the cutting assembly 10, the traveling assembly 93, the lighting system 40, etc., wherein the first motor 13, the second motor 933 and the lighting system 40 are all electrical devices included in the mowing tractor 100, and these electrical devices can convert electrical energy into other forms of energy. Figure 5As shown in FIG8 , the power assembly 96 includes at least one battery pack for storing electrical energy. The power assembly 96 is located at the front of the lawn mower tractor 100 and is covered by the front cover 23 . The power assembly 96 includes a battery compartment housing 961 , which includes a first battery compartment 162 for mounting a first battery pack 161 . The power assembly 96 may include multiple first battery compartments 162 . In one embodiment, the power assembly 96 includes six first battery compartments 162 , which can accommodate six first battery packs 161 . Compared to a fuel engine and fuel tank, even six first battery packs 161 are relatively lightweight. Therefore, the load on the front first travel assembly 931 is lighter than the load on the rear second travel assembly 932. This shifts the weight of the lawn mower tractor 100 rearward, reducing steering effort and making it easier for the user to operate. Furthermore, the rear second travel assembly exerts a relatively greater positive pressure on the ground, thereby increasing the second travel assembly's grip and making it easier to climb hills. In one embodiment, the load ratio between the first and second travel assemblies 931, 932 is less than or equal to 1. In another embodiment, the load ratio between the first and second travel assemblies 931, 932 is less than or equal to 1. In another embodiment, the load ratio between the first and second travel assemblies 931, 932 is less than or equal to 0.8. The center of gravity G of the lawn mower tractor 100 is located forward of the line connecting the center points of the left and right second travel wheels 932L, 932R in the fore-aft direction.

[0059] See also Figure 6 and Figure 8B , each first battery pack 161 can be respectively installed in each corresponding first battery compartment 162. The first battery compartment 162 can be formed with a first groove 162a, and the first battery pack 161 can be detachably inserted into the first groove 162a along the extension direction 1a of the first groove 162a and pulled out from the first groove 162a along the extension direction 1a of the first groove 162a. In one embodiment, the upper cover 232 of the front cover 23 has an open state and a closed state. When the upper cover 232 is in the open state, the first groove 162a is open, and the user can insert the first battery pack 161 into the first groove 162a; when the upper cover 232 is in the closed state, the first groove 162a is closed, thereby providing a certain degree of protection for the first battery pack 161 located in the battery compartment housing 961.

[0060] It is understood that the six first battery compartments 162 can also be formed by a single, larger battery compartment. In other words, the power supply assembly 96 includes only one battery compartment, and the multiple first battery packs 161 are installed in this single battery compartment. Alternatively, the power supply assembly 96 can include only one first battery compartment 162, and correspondingly, the power supply assembly 96 also includes only one first battery pack 161. In other words, there is no specific limit on the number of first battery compartments 162 and the number of first battery packs 161, and the correspondence between first battery compartments 162 and first battery packs 161 is not limited to a one-to-one relationship. The multiple first battery packs 161 are arranged in a regular shape, for example, symmetrically distributed about the center plane 1d of the lawn mower tractor 100. The first battery pack 161 has a height direction along the extension direction 1a of its insertion into the first groove 162a, and also has a length direction and a width direction perpendicular to the height direction. The length dimension of the first battery pack 161 is greater than its width dimension. In this embodiment, when the first battery pack 161 is inserted into the first groove 162a, the length of the first battery pack 161 extends along the left-right direction of the lawn mower tractor 100. In this way, when the user needs to install or remove the first battery pack 161, the user does not need to twist his wrist, which improves the comfort of operation.

[0061] Taking the power supply assembly 96 including six first battery packs 161 in this embodiment as an example, according to Figure 7A In the side view of the tractor 100, six first battery packs 161 are arranged in three rows along the front-to-back direction, with each row including two first battery packs 161 arranged in the left-to-right direction. The length of each first battery pack 161 in the left-to-right direction is greater than its width in the front-to-back direction. Thus, two first battery packs 161 are arranged in the left-to-right direction, while three first battery packs 161 are arranged in the front-to-back direction. Each first battery pack 161 is positioned so that its length in the left-to-right direction is greater than its length in the front-to-back direction. This prevents the six first battery packs 161 from being too long in the front-to-back direction, thereby increasing the overall front-to-back size of the tractor 100. It also prevents the six first battery packs 161 from being too small in the left-to-right direction, thereby preventing them from effectively utilizing the space occupied by the tractor 100 in the left-to-right direction. This makes the layout of the power supply assembly 96 more rational and saves layout space. Because the vertical height of the first battery pack 161 at its highest point when placed along the 1a direction is much lower than that of the engine, the front portion of the front cover 23 of the lawn mower tractor 100 of the present application is lower than that of a conventional fuel-powered lawn mower tractor. This reduces the blind spot ahead when a user rides on the lawn mower tractor 100. Furthermore, the center of gravity G of the lawn mower tractor 100 is lowered. In this embodiment, the center of gravity G of the lawn mower tractor 100 is lower than the seat cushion 921 in the vertical direction.

[0062] In another embodiment, the six first battery packs 161 are arranged in a stepped manner along the front-to-back direction. Figure 7B The side schematic diagram shows that the six first battery packs 161 are arranged in two rows, the front row includes two first battery packs 161 arranged in the left-right direction, and the rear row includes four stacked first battery packs 161. More specifically, the rear row includes two layers, the lower layer includes two first battery packs 161 arranged in the left-right direction, and the upper layer includes two first battery packs 161 arranged in the left-right direction. This arrangement further shortens the length of the six first battery packs 161 in the front-to-back direction. At the same time, since the front row still has only one layer of two first battery packs 161 arranged in the left-to-right direction, the height of the front of the power supply assembly 96 is lower. Therefore, the vertical height of the front of the front cover is lower, and when the user rides on the lawn mowing tractor, the blind spot in front is smaller. On this basis, since there are only two rows of first battery packs 161 in the front-to-back direction, the first battery packs 161 can also be laid down, such as Figure 7C As shown, the height of the power supply assembly 96 is further reduced. Figure 6 As shown, in one embodiment, the height difference H1 between the highest point of the first battery pack 161 farthest from the seat 92 and the center point of the first running wheel is less than or equal to 50 cm. In one embodiment, the height difference H1 between the highest point of the first battery pack 161 farthest from the seat 92 and the center point of the first running wheel is less than or equal to 45 cm. In one embodiment, the height difference H1 between the highest point of the first battery pack 161 farthest from the seat 92 and the center point of the first running wheel is less than or equal to 44 cm. Furthermore, due to the low frame of the lawn mower tractor 100, the vertical distance between the first battery pack 161 and the plane on which the lawn mower tractor 100 lies is also relatively small. In one embodiment, the vertical distance H2 between the highest point of the first battery pack 161 farthest from the seat 92 and the plane 1f on which the lawn mower tractor 100 lies is less than or equal to 63 cm. In one embodiment, the vertical distance H2 between the highest point of the first battery pack 161 farthest from the seat 92 and the plane 1f on which the lawn mower tractor 100 lies is less than or equal to 62 cm.

[0063] In addition to including only the first battery pack 161, the power supply assembly 96 can also be configured as a combination of an internal battery module 163 and an external battery pack, wherein the external battery pack can be the first battery pack 161 or other detachable battery packs. Figures 8A to 8CAs shown, in one embodiment, the power supply assembly 96 includes two first battery packs 161 and a row of internal battery modules 163. In another embodiment, the power supply assembly 96 includes two first battery packs 161 and two rows of internal battery modules 163. Compared to removable external battery packs, internal battery modules 163 are less expensive and more compact, saving space and cost while providing a more adequate energy reserve for the lawn mower tractor 100. Furthermore, the availability of a certain number of removable external battery packs also allows for the flexibility of the power supply assembly 96. For example, a user can take only the first battery pack 161 with them for charging without having to drive the entire lawn mower tractor 100 to a charging station. If the user is unable to charge the internal battery modules 163 of the lawn mower tractor 100 or does not have time, they can simply plug in the first battery pack 161 to meet short-term mowing needs. In one embodiment, the first battery pack 161 can be installed in the first battery compartment 162, and the first battery compartment 162 is arranged in front of the built-in battery module 163. In this way, when the user installs or removes the first battery pack 161, there is no need to operate over the built-in battery module 163, thereby facilitating the user to install or remove the first battery pack 161.

[0064] The power supply assembly 96 also includes a battery management system (BMS), which is implemented by a battery management circuit board 964. Since the external first battery pack 161 usually integrates a BMS, the battery management circuit board 964 in this embodiment is mainly used to manage the charging process of the built-in battery module 163 and the coordinated discharge of the first battery pack 161 and the built-in battery module 163. Figure 8A As shown, the battery management circuit board 964 is placed behind the built-in battery module 163, which is closer to the built-in battery module 163 and has a shorter wiring path. However, placing the battery management circuit board 964 behind the built-in battery module 163 is not conducive to the heat dissipation of the battery management circuit board 964. Figure 8B As shown, the battery management circuit board 964 is placed in front of the first battery pack 161, that is, the battery management circuit board 964 is located at the front of the storage cavity covered by the front cover 23. At the same time, the front part of the front cover is provided with a vent, so that when the mowing tractor 100 moves forward, the battery management circuit board 964 is blown against the wind, which has a good heat dissipation effect; however, at this time, the battery management circuit board 964 is far away from the built-in battery module 163, and the wiring path is long. Figure 8CAs shown, the battery management circuit board 964 is positioned above the internal battery module 163, that is, located above the storage cavity covered by the front cover 23. Furthermore, a vent is provided at the top of the front cover. This allows the battery management circuit board 964 to face the wind when the mowing tractor 100 is moving forward, effectively dissipating heat. Furthermore, the battery management circuit board 964 is located closer to the internal battery module 163, shortening the wiring path. However, this does reduce the storage space above the internal battery module 163.

[0065] In addition to accommodating the power supply assembly 96, the front accommodating cavity 231 formed by the front cover 23 also has a surplus storage space 234 to provide a certain storage function. The front cover 23 includes an upper cover 232, and the upper cover 232 has an open position and a closed position. When the upper cover 232 is in the open position, the user can access the storage space. The storage space can be used to store small tools, gloves, sun hats, and even clothes according to the needs of the user, which is convenient for the user and improves the comfort of mowing work. Figure 9A As shown, 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 pack 161 is located in front of the built-in battery module 163, and the battery management circuit board 964 is set behind the built-in battery module 163. The first battery pack 161 and the built-in battery module 163 are set in the front and middle of the front accommodating cavity 231. At this time, the rear and top of the built-in battery module 163 are set as storage space 234a. Figure 9B As shown, 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 pack 161 is located in front of the built-in battery module 163, and a gap is provided between the first battery pack 161 and the built-in battery module 163. That is, the first battery pack 161 is provided in front of the front accommodating cavity 231, and the built-in battery module 163 is provided in the rear of the front accommodating cavity 231. At this time, the space above the built-in battery module 163 and between the first battery pack 161 and the built-in battery module 163 is provided as a storage space 234b. Figure 9C As shown, 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 pack 161 is located in front of the built-in battery module 163, and the first battery pack 161 and the built-in battery module 163 are arranged in the middle and rear of the front accommodating cavity 231. At this time, the front of the first battery pack 161 and the top of the built-in battery module 163 are set as storage space 234c. Optionally, the storage space 234c can be divided into two parts, or in other words, there are two independent storage spaces. Figure 9DAs shown, 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 pack 161 is located in front of the built-in battery modules 163, and the first battery pack 161 and the built-in battery modules 163 are arranged in the front, middle and rear parts of the front accommodating cavity 231. At this time, the top of the two rows of built-in battery modules 163 is set as a 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 modules 163. The power supply assembly 96 can also have only the first battery pack 161 or only the built-in battery modules 163. Figure 9E As shown, the power supply assembly 96 includes three rows of first battery packs 161, which are respectively arranged at the front, middle and rear of the front accommodating cavity 231. At this time, the top of the first battery pack 161 is set as a storage space 234e. Figure 9F As shown, the power supply assembly 96 includes three rows of internal battery modules 163, which are located in the front, middle, and rear portions of the front accommodating chamber 231, respectively. A battery management circuit board 964 is located behind the internal battery modules 163. A storage space 234f is provided above the internal battery modules 163. To prevent stored items from interfering with the power supply assembly 96, for example, with the first battery pack 161, the internal battery modules 163, or the battery management circuit board 964, the storage space 234 can be separated by a partition. The partition can be made of plastic, and its shape depends on the specific form of the storage space 234, which will not be described in detail here. The upper cover 232 of the front cover 23 can be movably and rotatably connected to the front cover 23 via a structure such as a slide rail or hinge, which will not be described in detail here. The upper cover 232 of the front cover 23 can be configured to suit the storage space configuration; the specific shape and size of the upper cover 232 are not limited in this application.

[0066] See also Figures 10 to 14The operating assembly 50 of the lawn mower tractor 100 includes a control panel 52, a steering wheel assembly 56, and a pedal assembly 59. In one embodiment, the 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, the steering wheel assembly 56 includes a steering wheel 561 and a support rod 562. The steering wheel 561 can be operated by the user to control the direction of travel of the lawn mower tractor 100. The support rod 562 connects the steering wheel 561 to the steering assembly 60. The support rod 562 transmits the torque generated by the user turning the steering wheel 561 to the steering assembly 60, thereby controlling the first travel assembly to change direction. The control panel 52 is connected to the front cover 23 and includes a display screen 51 and multiple operating elements 55. This allows the user to easily view the status displayed on the display screen 51 while operating the multiple operating elements 55, resulting in a more ergonomic design. The display screen 51 is used to display status information of the lawn mowing tractor 100; multiple operating elements 55 can be operated by the user to control the travel component and the cutting component, and the multiple operating elements 55 may include switches, buttons, gears, etc.; the multiple operating elements 55 can be configured into different shapes and sizes, so that the user can operate different operating elements 55 without checking.

[0067] like Figure 11As shown, the multiple operating elements 55 include a keyhole 554. When a key is inserted into the keyhole 554, the lawn mower tractor 100 can be started. If no key is inserted into the keyhole 554, the lawn mower tractor 100 is powered off and cannot be started. In one embodiment, a switch located within the keyhole 554 is activated when a key is inserted. In other words, the switch located within the keyhole 554 is activated when a key is inserted without turning the key, thereby facilitating user operation. In one embodiment, a safety cover is also connected to the keyhole 554. The safety cover is movably connected to the keyhole 554. When the key 551 is not inserted into the keyhole 554, the safety cover seals the keyhole 554, preventing moisture, dust, and the like from entering the keyhole 554. When the key 551 is inserted into the keyhole 554, the safety cover is pressed downward, opening the keyhole 554. The keyhole 554 is formed in the control panel 52 and is rotatably connected to the control panel 52 via a torsion spring. The multiple operating components 55 also include a start button 552. When the start button 552 is activated, the lawn mower 100 enters a standby mode. At this point, the user can operate other operating components 55 to put the lawn mower 100 into a travel mode or a mowing mode. The multiple operating components 55 also include a first push rod 553. The first push rod 553 has at least a first position and a second position. When the first push rod 553 is in the first position, the lawn mower 100 is in a forward mode; when the push rod is in the second position, the lawn mower 100 is in a reverse mode. When the lawn mower 100 is in the forward mode, the user can control the forward speed of the lawn mower 100 using the pedal assembly 59. When the lawn mower 100 is in the reverse mode, the user can control the reverse speed of the lawn mower 100 using the pedal assembly 59. The multiple operating components 55 also include a PTO switch 555, which has a first position and a second position. When the PTO switch 555 is in the first position, the mowing unit rotates; when the PTO switch 555 is in the second position, the mowing unit stops. The PTO switch 555 is in the first position when it is lifted, and in the second position when it is pressed. In an emergency, the user can simply press the PTO switch 555 to stop the mowing unit, making operation quick and convenient. The multiple operating components 55 also include a cruise control button 556. When the cruise control button 556 is triggered, the mowing tractor 100 receives the cruise control command issued by the user and determines whether to enter cruise control mode based on the current state. In one embodiment, from the user's perspective, the multiple operating components 55 are distributed below the display screen 51.

[0068] The display screen 51 includes a display interface 510 for displaying the operating status of the mowing tractor 100. The display interface 510 is understood to be the display area directly visible to the user. The display interface 510 can display various status information as needed. The display interface 510 can display the travel speed of the travel assembly 93, the rotation speed of the mowing element 12, the energy efficiency status of the mowing tractor 100, the remaining battery power of the power supply assembly 96, warning messages, fault messages, and the remaining runtime of the power supply assembly 96. The display screen 51 also includes a plurality of buttons arranged around the display interface 510, such as a first button 511 and a second button 512, which are respectively used by the user to adjust the travel speed and blade speed of the mowing tractor 100. In one embodiment, the first button 511 can be operated by the user to change the maximum travel speed of the mowing tractor 100. When the user depresses the pedal assembly 59 to the maximum position, the mowing tractor 100 travels at the maximum travel speed set by the first button 511. The second button 512 can be operated by the user to change the rotation speed of the mowing element of the mowing tractor 100. The first button 511 and the second button 512 can be located on the left and right sides of the display interface 510, respectively. A third button 513 is also located around the display interface 510 for user operation to control the lighting functions of the lawn mower tractor 100. For example, when the user operates the third button 513 using a first operation method, the lighting system 40 turns on some of the lights; when the user operates the third button 513 using a second operation method, the lighting system 40 turns on all of the lights. In this embodiment, a fourth button 514 is also located around the display interface 510. This fourth button 514 allows the user to enter different driving modes of the lawn mower tractor 100, such as sport mode, standard mode, and control mode. This allows the user to select different driving modes based on their personal preferences, thereby enhancing the user experience of the lawn mower tractor 100. Information about the different driving modes of the lawn mower tractor 100 can also be displayed on the display interface 510. The fourth button 514 can also be operated by the user in different modes to configure other aspects of the mowing tractor 100. For example, a long press of the fourth button 514 switches the driving mode, and a short press of the fourth button 514 enters the settings menu. The third button 513 and the fourth button 514 can be located on the bottom side of the display interface 510.

[0069] like Figure 2As shown, the display screen 51 extends within an inclined plane 1h that obliquely intersects with the plane 1g of the vehicle frame 91, and the display interface 510 extends within the same plane as the display screen 51. The angle formed by the oblique intersection of the inclined plane 1h extending from the display screen 51 and the plane 1g of the vehicle frame 91 is greater than or equal to 20 degrees and less than or equal to 45 degrees; alternatively, the angle formed by the oblique intersection of the inclined plane 1h extending from the display screen 51 and the plane 1g of the vehicle frame 91 is greater than or equal to 25 degrees and less than or equal to 40 degrees. In this way, the display screen 51 extends upward at an angle, making it easier for the user to view the status information on the display screen 51 while sitting in the seat 92, without having to lower their head to observe the status information. In this embodiment, the inclined plane 1j extending from the steering wheel 561 is substantially parallel to the inclined plane 1i extending from the control panel 52. The angle formed by the intersection of the inclined plane 1h extending from the display screen 51 and the plane 1g of the vehicle frame 91 is greater than the angle formed by the intersection of the inclined plane 1i extending from the control panel 52 and the plane 1g of the vehicle frame 91. Similarly, the angle formed by the intersection of the inclined plane 1h extending from the display screen 51 and the plane 1g of the vehicle frame 91 is greater than the angle formed by the intersection of the inclined plane 1j extending from the steering wheel 561 and the plane 1g of the vehicle frame 91. The angle formed by the oblique intersection of the inclined plane 1i extending from the control panel 52 and the plane 1g of the vehicle frame 91 is greater than or equal to 5 degrees and less than or equal to 35 degrees; alternatively, the angle formed by the oblique intersection of the inclined plane 1i extending from the control panel 52 and the plane 1g of the vehicle frame 91 is greater than or equal to 10 degrees and less than or equal to 30 degrees. Similarly, the angle formed by the oblique plane 1j extending from the steering wheel 561 and the plane 1g of the vehicle frame 91 is greater than or equal to 5 degrees and less than or equal to 35 degrees; alternatively, the angle formed by the oblique plane 1j extending from the steering wheel 561 and the plane 1g of the vehicle frame 91 is greater than or equal to 10 degrees and less than or equal to 30 degrees. Furthermore, to facilitate the user to grip the steering wheel 561 at a comfortable angle while sitting on the seat 92, the height difference between the lowest point of the steering wheel 561 and the seat cushion 921 should not be too small. In one embodiment, the height difference H3 between the lowest point of the steering wheel 561 and the seat cushion 921 is greater than or equal to 24 cm. In another embodiment, the height difference H3 between the lowest point of the steering wheel 561 and the seat cushion 921 is greater than or equal to 26 cm.

[0070] The status information on the display interface 510 can be conveniently viewed by the user, and the size of the display interface 510 is understood to be the display area exposed to be observed by the user. Figure 11As shown, in this embodiment, the display interface 510 is substantially rectangular, and the length L2 of the display interface 510 is greater than or equal to 10 cm and less than or equal to 15 cm, and the width L3 of the display interface 510 is greater than or equal to 6 cm and less than or equal to 10 cm. In this way, the size of the display interface 510 is large enough to display more status information that the user wants to know. The area of ​​the display interface 510 is greater than or equal to 60 square centimeters and less than or equal to 150 square centimeters. The positional relationship between the display interface 510 and the steering wheel assembly 56 is shown in FIG. Figure 11 As shown, the support rod 562 passes through the control panel 52. More specifically, the support rod 562 passes through the control panel 52 from the bottom of the display interface 510. When a user sits on the seat 92 and looks at the display interface 510, their line of sight passes through the steering wheel 561. Therefore, the steering wheel 561 is provided with a large opening to facilitate the user to fully observe the display interface 510 through the opening. Preferably, because the support rod 562 passes under the display interface 510 and supports the steering wheel 561 from the center of the steering wheel 561, the large opening is provided in the upper half of the steering wheel 561, and the display interface 510 is arranged toward the opening. Furthermore, considering the distance between the inclined plane 1h extending from the display screen 51 and the inclined plane 1j extending from the steering wheel, as well as the aspect ratio of the display interface 510, when the length L2 of the display interface 510 is greater than or equal to one-quarter and less than or equal to two-thirds of the diameter L1 of the steering wheel 561, the user can easily view the entire display interface 510 through the opening of the steering wheel 561, and 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 lawn mower tractor 100. In one embodiment, the length of the display interface 510 is approximately equal to one-half of the diameter L1 of the steering wheel 561. In one embodiment, the ratio of the circumference of the display interface 510 to the circumference of the steering wheel 561 is greater than or equal to one-quarter and less than or equal to one-half. In one embodiment, the ratio of the circumference of the display interface 510 to the circumference of the steering wheel 561 is greater than or equal to one-third and less than or equal to one-half.

[0071] The lawn mower tractor 100 also includes a signal circuit board 951. This receives status information about the lawn mower tractor 100 and transmits it to the display circuit board 953 on the display screen 51. It also receives on / off signals from the various operating elements and buttons on the control panel 52 and transmits them to the main control circuit board 952. The signal circuit board 951 is mounted on the back of the control panel 52. Specifically, the front of the control panel 52 houses the display screen and multiple operating elements. Furthermore, the steering wheel's support rod 562 passes through the control panel 52, and the steering wheel also protrudes from the front of the control panel 52, parallel to the display screen. The signal circuit board 951 is mounted on the back of the control panel 52. Therefore, the signal circuit board 951 is located at the top of the lawn mower tractor 100, close to the display screen 51 and the operating elements 55, simplifying wiring and saving time. This location facilitates maintenance: the signal circuit board 951 can be removed by flipping up the control panel 52 for repair and replacement. In addition, since the signal circuit board 951 is located at the top of the whole machine, it will not be immersed in water during normal use, thus preventing the signal circuit board 951 from being damaged by water. In addition, by separating the signal circuit board 951 from the high-current control circuit board 952, it is helpful to avoid interference between strong and weak electric signals.

[0072] The mowing tractor 100 further includes 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 this embodiment, Figure 12 As shown, the control circuit board 952 is mounted to the vehicle frame 91. In the front-to-back direction, the control circuit board 952 is arranged between the seat 92 and the power supply assembly 96. Further, the control circuit board 952 is arranged between the seat 92 and the support rod 562. In one embodiment, the control circuit board 952 is arranged below the maintenance cover 25 of the lawn mower tractor 100, that is, the part where the user steps on when sitting on the seat 92. In the up-down direction, the control circuit board 952 is arranged between the maintenance cover 25 and the cutter disc 11. In the left-right direction, the control circuit board 952 is arranged between two longitudinal beams, namely, between the first longitudinal beam 911 and the second longitudinal beam 912. Such a layout can save space, facilitate wiring, and make the overall structure more compact. It is also beneficial to the heat dissipation and subsequent maintenance of the control circuit board 952.

[0073] 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. Since the distance between the main control circuit board 952 and the pedal assembly 59, the second motor 933 and the first motor 13 is relatively short, the wiring is saved and simplified. Figure 13As shown, the main control circuit board 952 includes a cutting control module 9521 and a travel control module 9522. The cutting control module 9521 is electrically connected to the first motor 13 via wires, while the travel control module 9522 is electrically connected to the pedal assembly 59 and the second motor 933 via wires. The cutting control module 9521 and the travel control module 9522 are also electrically connected to the signal circuit board 951 to receive electronic signals from the various operating elements 55 and buttons on the control panel 52. Because the control circuit board 952 is open to the air from both above and below, when the mowing tractor 100 is in motion, the oncoming wind blows over the control circuit board 952 from above and below, removing heat from the control circuit board 952. In one embodiment, the main control circuit board 952 can be enclosed in a main control box to protect the circuit components and achieve waterproof and dustproof effects. When maintenance is required, the control circuit board 952 can be repaired or replaced by simply removing the pedals and opening the main control box, making it easy to operate. In addition, since the control circuit board 952 is located above the cutterhead 11, it will not be immersed in water during normal use, thus preventing the control circuit board 952 from becoming ineffective due to water ingress. 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-to-back direction.

[0074] In this embodiment, the steering assembly 60 of the mowing tractor 100 drives the first traveling assembly 931 to turn, that is, the steering assembly 60 can make the left first traveling wheel 931L and the right first traveling wheel 931R turn. Figure 14 and Figure 15 As shown, the steering assembly 60 is mainly arranged behind the first traveling assembly 931. The first traveling assembly 931 is at least partially located in front of the power supply assembly 96 in the front-rear direction of the lawn mowing tractor 100, thereby protecting the power supply assembly 96. Specifically, the left first traveling wheel 931L and the right first traveling wheel 931R are at least partially located in front of the first battery pack 161 in the front-rear direction of the lawn mowing tractor 100. The support rod 562 connects the steering wheel 561 and the steering assembly 60, and transmits the steering force applied to the steering wheel 561 by the user from the steering wheel 561 to the steering assembly 60. A gear 601 is fixedly mounted on one end of the support rod 562 connected to the steering wheel 561, and the center of the steering wheel 561 includes a ring gear (not shown) that meshes with the gear. When the user turns the steering wheel 561, the ring gear of the steering wheel 561 drives the gear 601 of the support rod 562 to rotate synchronously. See Figure 15The steering assembly 60 includes a steering sprocket 61 and a steering tie rod 62 that is linked to the steering sprocket. In this embodiment, the steering sprocket 61 and the steering tie rod 62 are disposed below the vehicle frame 91. The steering sprocket 61 can be a sector-shaped sprocket, wherein the sector includes two straight sides and an arcuate side 613, with a row of teeth formed on the arcuate side 613. 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 arcuate side 613, and the second tie rod 622 is connected at the intersection of the second straight side 612 and the arcuate side 613. In one embodiment, the steering sprocket 61 is connected to the first tie rod 621 and the second tie rod 622, respectively, via a ball shaft. The first tie rod 621 is connected to the steering knuckle 631L of the left first running wheel 931L via a ball-jointed shaft, while the second tie rod 622 is connected to the steering knuckle 631R of the right first running wheel 931R via a ball-jointed shaft. The ball-jointed shafts link the connected components while allowing a certain degree of freedom, making turning operations smoother. In this embodiment, the steering knuckle 631L of the left first running wheel 931L and the steering knuckle 631R of the right first running wheel 931R are located vertically below the front axle 934. A gear 602 is also fixedly mounted on the end of the support rod 562 connected to the steering assembly 60. This gear 602 rotates synchronously with the support rod 562 and, in turn, with the steering wheel 561. The gear 602 meshes with a row of teeth on the curved edge 613 of the steering sprocket 61. When the support rod 562 rotates, the gear 602 drives the steering sprocket 61 to rotate. The rotation of the steering sprocket 61 drives the first tie rod 621 and the second tie rod 622. Furthermore, the first tie rod 621 rotates the steering knuckle 631L of the left first travel wheel 931L, while the second tie rod 622 rotates the steering knuckle 631R of the right first travel wheel 931R. The steering knuckle is fixedly connected to the kingpin of the first travel wheel, controlling the kingpin's direction, thereby driving the first travel assembly 931 to steer. Specifically, the steering knuckle 631L of the left first travel wheel 931L is fixedly connected to the left kingpin 632L; the steering knuckle 631R of the right first travel wheel 931R is fixedly connected to the right kingpin 632R. For example, when the steering wheel 561 rotates counterclockwise, the support rod 562 rotates counterclockwise therewith, and the gear 602 rotates counterclockwise, causing the steering sprocket 61 engaged with it to rotate clockwise. Therefore, the first pull rod 62 pushes the steering knuckle 631L of the left first traveling wheel 931L outward, and the second pull rod 622 pulls the steering knuckle 631R of the right first traveling wheel 931R inward, causing both the left first traveling wheel 931L and the right first traveling wheel 931R to deflect to the left, thereby driving the lawn mowing tractor 100 to turn left.

[0075] The lawn mower tractor 100 has a center plane 1d extending in the front-to-rear direction. The steering assembly 60 is symmetrical about the center plane 1d. Specifically, the first tie rod 621 and the second tie rod 622 are symmetrical components, and the steering sprocket 61 itself is symmetrical about the center plane 1d. Therefore, the maximum leftward steering angle of the left first running wheel 931L is equal to the maximum rightward steering angle of the right first running wheel 931R; the maximum rightward steering angle of the left first running wheel 931L is equal to the maximum leftward steering angle of the right first running wheel 931R. Of course, the maximum leftward steering angle of the left first running wheel 931L is greater than the maximum rightward steering angle of the left first running wheel 931L, and the maximum rightward steering angle of the right first running wheel 931R is greater than the maximum leftward steering angle of the right first running wheel 931R. In other words, the maximum steering angles of the left first running wheel 931L and the right first running wheel 931R are the same, and the maximum steering angle of the first running wheel toward the outside of the lawn mower tractor 100 is greater than the maximum steering angle toward the inside of the lawn mower tractor 100. In one embodiment, the maximum steering angle of the first travel wheel toward the outside of the lawn mower tractor 100 is greater than or equal to 60°. In another embodiment, the maximum steering angle of the first travel wheel toward the outside of the lawn mower tractor 100 is greater than or equal to 65°. That is, the maximum leftward steering angle of the left first travel wheel 931L is greater than or equal to 65°, and the maximum rightward steering angle of the right first travel wheel 931R is greater than or equal to 65°. In one embodiment, the maximum steering angle of the first travel assembly 931 toward the inside of the lawn mower tractor 100 is greater than or equal to 50°. In another embodiment, the maximum steering angle of the first travel assembly 931 toward the inside of the lawn mower tractor 100 is greater than or equal to 55°. That is, the maximum rightward steering angle of the left first travel wheel 931L is greater than or equal to 55°, and the maximum leftward steering angle of the right first travel wheel 931R is greater than or equal to 55°. In this case, the minimum left and right turning radii of the lawn mower tractor 100 are equal, and the minimum turning radius of the lawn mower tractor 100 is less than or equal to 90 cm.

[0076] like Figure 14 and Figure 16A 、 Figure 16BAs shown, the lawn mower tractor 100 also includes a support frame 65 for supporting the support rod 562. The support frame 65 includes support legs 651, which are secured to the vehicle frame 91 via bolts or other common components. The support frame 65 positions and supports the support rod 562 at its center, thereby increasing the rigidity and stability of the support rod 562 and improving the coaxiality between the gears 601 and 602. In one embodiment, the vertical distance H7 from the support point of the support rod 562 on the support frame 65 to the plane 1g of the vehicle frame 91 is greater than or equal to 10 cm and less than or equal to 35 cm. In one embodiment, the vertical distance H7 from the support point of the support rod 562 on the support frame 65 to the plane 1g of the vehicle frame 91 is greater than or equal to 15 cm and less than or equal to 30 cm. In one embodiment, the vertical distance H7 from the support point of the support rod 562 on the support frame 65 to the plane 1g of the vehicle frame 91 is equal to 20 cm. The support rod 562 is rotatably connected to the support frame 65 via a bearing 64, making the rotation of the support rod 562 smoother and reducing the steering force required. To increase the rigidity of the support frame 65, auxiliary support legs 652 and a crossbeam 653 may also be provided. The two ends of the auxiliary support legs 652 are respectively connected to the support legs 651 and the longitudinal beam of the frame 91, and the auxiliary support legs 652 are substantially parallel to the support rod 562. The crossbeam 653 is installed between the two support legs 651 to provide reinforcement. In this embodiment, the use of a two-stage transmission mechanism, namely a gear drive and a connecting rod drive, achieves a transmission ratio of 4-6. In other words, the ratio of the rotation angle of the steering wheel 561 to the rotation angle of the first road wheel toward the outside of the mowing tractor 100 is between 4:1 and 6:1. In one embodiment, the ratio of the rotation angle of the steering wheel 561 to the rotation angle of the first road wheel toward the outside of the mowing tractor 100 is 4.7; in one embodiment, the ratio of the rotation angle of the steering wheel 561 to the rotation angle of the first road wheel toward the outside of the mowing tractor 100 is 5.2.

[0077] Because the front wheel load of the lawn mower tractor 100 is relatively small—that is, the load ratio between the first travel assembly 931 and the second travel assembly 932 is less than or equal to 1—the steering force required is relatively low, allowing the user to easily operate the steering wheel. In one embodiment, a second gear transmission mechanism, similar to a speed reducer, can be added to maximize the total transmission ratio, thereby further reducing the steering force required. Furthermore, kingpin offset also affects the steering force required. Kingpin offset refers to the distance from the intersection of the extended line of the kingpin and the ground to the tire's contact point. When the lawn mower tractor 100 turns, the first travel wheel rotates around its kingpin. The ground resistance torque to steering is proportional to the kingpin offset. The smaller the kingpin offset, the smaller the steering resistance torque. Therefore, a smaller kingpin offset can reduce steering force and the impact of the ground on the steering assembly 60. In this embodiment, the kingpin offset distance is equal to 5 cm, that is, the distance between the intersection point of the extended line of the kingpin of the left first running wheel 931L and the plane 1f where the lawn mower tractor 100 is located and the intersection point of the left first running wheel 931L and the plane 1f where the lawn mower tractor 100 is located is equal to 5 cm; the distance between the intersection point of the extended line of the kingpin of the right first running wheel 931R and the plane 1f where the lawn mower tractor 100 is located and the intersection point of the right first running wheel 931R and the plane 1f where the lawn mower tractor 100 is located is equal to 5 cm.

[0078] In one embodiment, the steering assembly 60 further includes a connecting rod mechanism for driving the second traveling assembly 932 to turn synchronously with the first traveling assembly 931. In one embodiment, the steering assembly 60 further includes an electric power steering device, which is mounted to the support rod 562. The electric power steering device includes a torque sensor, a controller, and a power-assisting motor. With the steering wheel 561 as the input end, the torque sensor converts the input torque into a linearly varying voltage signal, and the controller controls the rotation of the power-assisting motor accordingly to provide steering assistance. A reduction mechanism such as a worm gear can be used to convert the rotation of the power-assisting motor output shaft into the rotation of the support rod 562. The electric power steering device also includes an electromagnetic clutch. When the power-assisting motor system fails, the electromagnetic clutch is disconnected to ensure safety. In one embodiment, the power-assisting motor can also act on the steering gear 61.

[0079] The seat 92 is mounted on the vehicle frame 91. The seat 92 is used for the user to sit on. The vehicle frame 91 carries the seat 92. The seat 92 is fixed to the vehicle frame through a seat support 94. Specifically, the seat support 94 includes a first metal tube 941 and a second metal tube 942. Figure 19As shown, the first metal tube 941 and the second metal tube 942 are of the same shape, being inverted saddle-shaped arc-shaped metal tubes, formed with a central concave portion 943 and rising edges 944 at both ends. In this embodiment, the first metal tube 941 and the second metal tube 942 are identical components, and the first metal tube 941 and the second metal tube 942 are symmetrical about the mid-plane 1d. The first metal tube 941 and the second metal tube 942 are arranged parallel to each other, one in front of the other, below the seat 92. The concave portions 943 of the first metal tube 941 and the second metal tube 942 are respectively fixed to the vehicle frame 91 via fixings. For example, the two points of the concave portion 943 of the first metal tube 941 are fixed to the first longitudinal beam 911 and the second longitudinal beam 912 via fixings. The fixings can be general-purpose parts such as bolts, and the specific structure of the fixings is not limited in this application. Since the diameters of the first metal tube 941 and the second metal tube 942 are relatively small, and the cushion 921 of the seat 92 is mounted on the lower recess 943 of the first metal tube 941 and the second metal tube 942, the seat 92 can be installed relatively low, thereby lowering the center of gravity G of the entire machine and improving the stability of the mowing tractor 100. Figure 2 As shown, in one embodiment, a vertical distance H4 from the seat cushion 921 to the plane 1g of the frame 91 is less than or equal to 40 cm. In another embodiment, a vertical distance H4 from the seat cushion 921 to the plane 1g of the frame 91 is less than or equal to 37 cm. In another embodiment, a vertical distance H6 from the seat cushion 921 to the plane 1f of the lawn mower tractor 100 is less than 73 cm.

[0080] The 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. Figure 18 As shown, the two ends of the second metal tube 942 located at the rear are respectively located above the left second running wheel 932L and the right second running wheel 932R. Figure 2 As shown, the seat 92 is arranged above the second walking assembly 932. Figure 20 As shown, the left cover 21 and the right cover 22 are mounted to the seat support 94, or in other words, the left cover 21 and the right cover 22 are supported by the seat support 94. It is worth noting that the support referred to here includes direct support and indirect support, and supporting the left cover 21 and the right cover 22 by components mounted on the seat support 94, or supporting a cover that at least partially covers the second traveling assembly 932, all fall within the scope of protection of this application.

[0081] The left cover 21 is provided with a first storage box 211 for storing objects. Specifically, the first storage box 211 can be shaped to accommodate a water cup, making it convenient for users to place water cups. The first storage box 211 can also be shaped as a rectangle to facilitate users to place miscellaneous items such as mobile phones. The first storage box 211 can also be provided with a lid to prevent dust, grass clippings, etc. from entering the first storage box 211.

[0082] like Figure 17A 、 17B and Figure 18 As shown, the mowing tractor 100 also includes a cutter disc height adjustment assembly 70 for adjusting the height of the cutter disc 11 relative to the vehicle frame 91. The cutter disc height adjustment assembly 70 includes a gear assembly 71 and a linkage assembly 72. The gear assembly 71 includes an adjusting member 711 and a limiting member 712. The adjusting member 711 is for user operation. The limiting member 712 includes multiple gears for limiting the adjusting member 711 to a preset gear. The linkage assembly 72 connects the gear assembly 71 and the cutter disc 11. The gear assembly 71 is at least partially supported by the seat support 94. Specifically, the two ends of the limiting member 712 are respectively fixed to the same side ends of the rising edge 944 of the first metal tube 941 and the second metal tube 942. In other words, the limiting member 712 is arranged across the rising edge 944 of the first metal tube 941 and the second metal tube 942. In this embodiment, the ends of the stopper 712 are secured to the right ends of the rising edge 944 of the first and second metal tubes 941, 942, respectively, via bolts or other fasteners. 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 adjustment member 711, it moves relative to the stopper 712 to different preset positions. Driven by the adjustment member 711, the linkage assembly 72 causes the height of the cutterhead 11 to change, thereby enabling the mowing tractor 100 to achieve different cutting heights.

[0083] like Figure 17BAs shown, the adjustment member 711 includes an adjustment handle 7111, a shift portion 7112, and a bending portion 7113. The adjustment member 711 passes through the right cover 22. The adjustment handle 7111 extends upward and is used for user operation. The shift portion 7112 cooperates with the limit member 712 to ensure that the shift portion 7112 remains at a preset shift position. The bending portion 7113 bends from the adjustment handle 7111 toward the main unit 100a to bring the linkage assembly 72 closer to the main unit 100a in the left-right direction relative to the adjustment handle 7111. In other words, the bending portion 7113 bends from the adjustment handle 7111 toward the seat 92 to bring the linkage assembly 72 closer to the seat 92 in the left-right direction relative to the adjustment handle 7111. The adjustment handle 7111 is located above the right cover 22, so that the user can adjust the height of the cutterhead while sitting on the seat 92 without having to get off the vehicle. Because the bent portion 7113 bends in the left-right direction toward the seat 92, the adjustment handle 7111 is positioned further away from the seat 92 than would be the case without the bent portion 7113. Thus, when a user sits on the seat 92, their hands and arms have ample room to apply force to move the adjustment handle 7111 without feeling too cramped. Furthermore, the size of the adjustment handle 7111 can be increased as much as possible, thereby ensuring that the user's comfort in operating the adjustment handle 7111 is not compromised. For example, the length of the adjustment handle 7111 is greater than or equal to 8 cm and less than or equal to 15 cm, so that the size of the adjustment handle 7111 is substantially the same as the width of the user's palm, or the size of the adjustment handle 7111 is greater than or equal to the width of the user's palm, thereby making it easier for the user to grip.

[0084] When the user moves the adjustment member 711 relative to the limit member 712 to a different preset position, the adjustment member 711 drives the rotational connection member 726 of the linkage assembly 72 to rotate. The linkage assembly 72 also includes a linkage rod 721, a first fixing member 722, a second fixing member 723, and a first transmission assembly 724 and a second transmission assembly 725. The first fixing member 722 is fixedly connected to the side wall 113 of the cutter disc 11, and the second fixing member 723 is fixedly connected to the top wall 112 of the cutter disc 11; alternatively, the first fixing member 722 is fixedly connected to the top wall 112 of the cutter disc 11, and the second fixing member 723 is fixedly connected to the side wall 113 of the cutter disc 11. One end of the second transmission assembly 725 is suspended from the second longitudinal beam 912, and the other end is fixedly connected to the rotating connector 726. The second fixing member 723 is fixedly connected to the second transmission assembly 725. When the second transmission assembly 725 moves, that is, when the rotating connector 726 rotates, the height of the second fixing member 723 changes accordingly, thereby causing the height of the cutterhead 11 to change. One end of the first transmission assembly 724 is suspended from the first longitudinal beam 911, and the other end is fixedly connected to the linkage rod 721. The first fixing member 722 is fixedly connected to the first transmission assembly 724. When the first transmission assembly 724 moves, that is, when the linkage rod 721 rotates, the height of the first fixing member 722 changes accordingly, thereby causing the height of the cutterhead 11 to change. In one embodiment, the first transmission assembly 724 and the second transmission assembly 725 are a connecting rod mechanism, wherein the first transmission assembly 724 may include a first spring 7241 to buffer the vibration of the cutter disc 11 when the mowing tractor 100 is traveling and working; the second transmission assembly 725 may include a second spring 7251 to buffer the vibration of the cutter disc 11 when the mowing tractor 100 is traveling and working.

[0085] The linkage rod 721 is fixedly connected to the rotating connection member 726 and rotates synchronously. In one embodiment, the rotating connection member 726 rotates around the axis of the linkage rod 721. In this way, when the rotating connection 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 cutter disc 11 at the same time, making it easier to adjust the height of the cutter disc 11 and improving the stability of the connection between the cutter disc height adjustment assembly 70 and the cutter disc 11. In this embodiment, the linkage rod 721 is rotatably mounted on the first longitudinal beam 911 and the second longitudinal beam 912. In order to reduce the operating force required by the user to lift the height of the cutter disc 11, a booster spring can also be provided to at least partially offset the gravity of the cutter disc 11. In one embodiment, see Figure 17AA tension spring 727 is connected to the linkage rod 721. One end of the tension spring 727 is connected to the protruding arm 7211 of the linkage rod 721, and the other end of the tension spring 727 is connected to the seat support, specifically, the second metal tube 942. When the user operates the adjustment member 711, the tension spring 727 contracts, driving the linkage rod 721 to rotate through the protruding arm 7211, thereby reducing the operating force required by the user to raise the height of the cutterhead 11. In another embodiment, see Figure 17B A biasing spring is provided on the linkage rod 721. Specifically, the biasing spring includes a first torsion spring 7281 and a second torsion spring 7282. The first torsion spring 7281 and the second torsion spring 7282 are respectively mounted on both ends of the linkage rod 721. The two ends of the first torsion spring 7281 are respectively connected to the first longitudinal beam 911 and the first transmission assembly 724, while the two ends of the second torsion spring 7282 are respectively connected to the second longitudinal beam 912 and the rotating connector 726. When the user operates the adjustment member 711, the biasing force of the first torsion spring 7281 drives the first transmission assembly 724 to move, thereby changing the height of the first fixed member 722. At the same time, the biasing force of the second torsion spring 7282 drives the rotating connector 726 to rotate, thereby driving the second transmission assembly 725 to move, thereby changing the height of the second fixed member 723. This reduces the operating force required by the user to raise the height of the cutterhead 11. The above power-assisting structure is compact and can save a large amount of installation space.

[0086] The cutter deck 11 is connected to the grass collection system 30 via a grass collection cylinder 32. A flap 115 is also connected to the side of the cutter deck 11. The flap 115 has a first position and a second position. When the flap 115 is in the first position, the mowing tractor 100 is in grass discharge mode, and grass clippings cut by the cutting assembly 10 are discharged to the right side of the mowing tractor 100 through the flap 115. When the flap 115 is in the second position, the cutter deck 11 is connected to the grass collection system 30 via the grass collection cylinder 32. In this case, the mowing tractor 100 is in grass collection mode, and grass clippings cut by the cutting assembly 10 are discharged to the grass basket through the flap 115. In this embodiment, with the support of the seat support, the adjustment member 711 and the limit member 712 are arranged on the right side of the seat 92. The adjustment member 711 passes through the right cover, and the adjustment handle 7111 extends upward, so that the gear assembly 71 avoids the flip cover 115 in the front-to-back direction and the up-down direction, thereby avoiding the interference of the blade height adjustment assembly 70 on the movement of the flip cover 115.

[0087] like Figure 21 and Figure 22As shown, the grass collecting system 30 includes a grass collecting basket assembly 31, a grass collecting cylinder 32 and a mounting assembly 33. The grass collecting basket assembly 31 is arranged at the rear side of the seat 92 and is used to collect grass clippings cut by the cutting assembly 10. The grass collecting cylinder 32 is used to connect the cutting disc 11 and the grass collecting basket assembly 31. The mounting assembly 33 is used to mount the grass collecting basket assembly 31 on the vehicle frame 91. Figures 21 to 22 As shown, the grass collecting basket assembly 31 includes a grass collecting basket body 311 and a grass collecting basket cover 312. The grass collecting basket body 311 surrounds and forms a grass collecting space for accommodating grass clippings, and the grass collecting basket cover 312 covers the upwardly open opening of the grass collecting basket body 311. The grass collecting basket cover 312 and the grass collecting basket body 311 can be connected together by a snap-fit ​​structure.

[0088] The grass collecting drum 32 is formed with a channel 321 extending along an extension line 1k. The extension line 1k is generally curved, that is, the channel 321 extends substantially along a curve, thereby smoothly guiding grass clippings from the cutting deck 11 into the grass basket body 311. The grass collecting drum 32 includes a first end surface 322 and a second end surface 323, located at either end of the extension line 1k. The first end surface 322 of the grass collecting drum 32 is connected to the cutting deck 11, thereby connecting the mowing space 121 with the channel 321. The second end surface 323 of the grass collecting drum 32 is connected to the grass collecting basket assembly 31, thereby connecting the channel 321 with the grass collecting space within the grass collecting basket assembly 31. In one embodiment, the distance D1 between the center point of the first end surface 322 and the grass collecting basket assembly 31 in the front-to-back direction of the mowing tractor 100 is less than or equal to 130 cm. In another embodiment, the distance D1 between the center point of the first end surface 322 and the grass collecting basket assembly 31 in the front-to-back direction of the mowing tractor 100 is less than or equal to 110 cm. To ensure smooth passage of grass clippings from the cutting disc 11 into the grass basket body 311 through the channel 321, the upward angle of the grass collecting tube 32 should be minimal. In one embodiment, the angle α between the line connecting the center points of the first end surface 322 and the second end surface 323 and the plane 1g of the frame 91 is greater than or equal to 20° and less than or equal to 35°. In another embodiment, the angle α between the line connecting the center points of the first end surface 322 and the second end surface 323 and the plane 1g of the frame 91 is equal to 30°. To ensure a low distance and slope, and to ensure smooth entry of grass clippings from the cutting disc 11 into the grass collecting tube 32 without affecting the speed of grass clippings entering the grass collecting tube 32, a flat triangular area 327 is formed at the end of the grass collecting tube 32 that connects to the cutting disc 11. This allows grass clippings to enter the grass collecting tube 32 in a straight line without turning. Furthermore, the flattened triangular area 327 raises the lowest point of the grass collecting tube 32, reducing collisions with ground debris. It should be understood that the triangular region 327 refers to the flattened portion forming a roughly triangular shape. In fact, the three sides of the region 327 are not necessarily straight lines. In one embodiment, the area of ​​the triangular region 327 is greater than or equal to 26 square centimeters and less than or equal to 31 square centimeters.

[0089] The grass collecting tube 32 also includes an observation portion 324 for the user to observe and determine 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 when the user sits on the seat 92, he can easily determine whether the grass collecting basket assembly 31 is full of grass. When the user is on the right side of the lawn mowing tractor 100, he can also easily observe to determine whether the grass collecting basket assembly 31 is full of grass. The length of the annular window in the direction of the extension line 1k is greater than or equal to 50 mm and less than or equal to 150 mm. In this way, the size of the annular window is large enough, which is convenient for the user's observation. The observation portion 324 is made of a transparent material, and the user can determine whether the grass collecting basket assembly 31 is full of grass by directly observing whether there is grass in the grass collecting tube 32. Figure 4 As shown, the viewing portion 324 is disposed on the right side of the seat 92, and the grass collecting cylinder 32 extends from the right side of the cutting disc 11 to the right side of the grass collecting basket assembly 31. The viewing portion 324 is also disposed on the front side of the backrest 922. Thus, when a user sits on the seat 92, the viewing portion 324 is disposed in front of the user's right side. Therefore, the user can see the viewing portion 324 with peripheral vision while driving the mowing tractor 100 without having to look back, thereby avoiding affecting driving safety.

[0090] In some embodiments, as Figure 21 and Figure 22 As shown, the grass collecting tube 32 includes a first connecting section 325 and a second connecting section 326. The first connecting section 325 is connected to the grass collecting basket assembly 31, and the second connecting section 326 is connected to the cutting disc 11. The first connecting section 325 and the second connecting section 326 can be made of the same material. The observation portion 324 is disposed between and connects the first connecting section 325 and the second connecting section 326. The observation portion 324 can be made of a different material than the first connecting section 325. Dividing the grass collecting tube 32 into the first connecting section 325 and the second connecting section also facilitates storage and transportation, reducing costs.

[0091] The grass basket body 311 is located behind the seat and protrudes rearward from the seat 92 in the front-to-back direction of the mowing tractor 100. This protects the seat 92 and the user, enhancing the structural reliability and extending the service life of the mowing tractor 100. At least a portion of the grass basket body 311 protrudes rearward from the rear bumper in the front-to-back direction of the mowing tractor 100. This provides cushioning when the mowing tractor 100 hits an obstacle while moving backward, protecting the seat. Furthermore, the rearward protrusion of the grass basket from the rear bumper shifts the center of gravity of the mowing tractor 100 rearward, improving its stability. Furthermore, the grass basket body 311 protrudes from the seat back 922 in both the left and right directions of the mowing tractor 100, ensuring that the grass basket body 311 is not too narrow or small to meet grass collection requirements.

[0092] In one embodiment, if Figure 20 As shown, the grass basket body 311 includes a first grass basket portion 3112 and a second grass basket portion 3113. The first grass basket portion 3112 surrounds a first chamber, and the second grass basket portion 3113 surrounds a second chamber. The first grass basket portion 3112 and the second grass basket portion 3113 are symmetrically arranged about a plane. The distance between the first longitudinal beam 911 and the second longitudinal beam 912 is less than the distance between the plane and the second longitudinal beam 912. In other words, the plane is not located at a position intermediate between the first longitudinal beam 911 and the second longitudinal beam 912, thereby causing the grass basket body 311 to protrude leftward from the vehicle frame 91. This design allows sufficient space on the right side of the mowing tractor 100 to accommodate the grass collection drum 32, which in turn allows the grass collection drum 32 to be connected to the grass basket cover 312 from the right side of the grass collection basket assembly 31. In another embodiment, the grass basket body 311 includes only a large chamber, which is also positioned toward the left side of the lawn mower tractor 100. This allows the grass basket body 311 to protrude leftward from the vehicle frame 91, leaving ample space on the right side of the lawn mower tractor 100 for the grass collection drum 32. Typically, for reasons of overall size, flexibility, and safety, the grass basket body 311 does not protrude beyond the left second running wheel 932L and the right second running wheel 932R in the left-right direction of the lawn mower tractor 100.

[0093] The grass basket cover 312 includes a rotating portion 3123 and a fixed portion 3124. The rotating portion 3123 is rotatably connected to the mounting assembly 33, and the fixed portion 3124 is fixedly connected to the mounting assembly 33. When the rotating portion 3123 is opened by the user, the grass basket body 311 opens upward to allow the user to more directly observe the grass clippings inside the first grass basket portion 3112 and the second grass basket portion 3113. Figure 21 and Figure 22As shown, the fixing portion 3124 of the grass basket cover 312 is also formed with a grass collecting tube receiving opening 3121 for inserting the grass collecting tube 32. An annular rubber ring 3122 is also provided at the connection between the grass collecting tube receiving opening 3121 and the grass collecting tube. After the grass collecting tube 32 is inserted into the grass collecting tube receiving opening 3121, the rubber ring 3122 surrounds the grass collecting tube 32, thereby achieving a good vibration reduction effect. The fixing portion 3124 of the grass basket cover 312 protrudes from the grass basket body 311. Furthermore, the grass collecting tube receiving opening 3121 protrudes from the grass basket body 311 and is tilted forward and downward, allowing the grass collecting tube 32 to connect more smoothly to the grass collecting basket assembly 31, thereby improving grass collection efficiency. In one embodiment, the angle β between the connecting surface of the grass collecting tube receiving port 3121 and the grass collecting tube 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 connecting surface of the grass collecting tube receiving port 3121 and the grass collecting tube 32 and the plane 1g of the frame 91 is equal to 60°.

[0094] like Figure 23 As shown, the mounting assembly 33 includes a mounting base 331 and a connecting rod assembly 334. In one embodiment, the mounting base 331 includes a first mounting base 332 and a second mounting base 333, which are symmetrical. The first mounting base 332 is mounted to the first longitudinal beam 911, and the second mounting base 333 is mounted to the second longitudinal beam 912. The first mounting base 332 is further formed with a first mounting hole 3321, and the second mounting base 333 is further formed with a second mounting hole 3331. The connecting rod assembly 334 includes a first connecting rod 3341 that is removably inserted into the first mounting hole 3321 and a second connecting rod 3342 that is removably inserted into the second mounting hole 3331. The connecting rod assembly 334 also includes an intermediate rod 3343 that is disposed between the first connecting rod 3341 and the second connecting rod 3342 to connect the first connecting rod 3341 and the second connecting rod 3342. The first connecting rod 3341 and the second connecting rod 3342 are independent of each other and correspond to the first mounting hole 3321 and the second mounting hole 3331, respectively, making the entire grass collecting system 30 easier to install. 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 the two can be connected via the intermediate rod 3343, thereby achieving a fixed connection between the first connecting rod 3341 and the second connecting rod 3342, and also allowing the connecting rod assembly 334 to be stably mounted to the vehicle frame 91. Finally, the fixing portion 3124 of the grass basket cover 312 is connected to the connecting rod assembly 334, so that the grass collecting basket assembly 31 can be easily mounted to the vehicle frame 91.

[0095] The first connecting rod 3341 extends along a straight line, and the second connecting rod 3342 also extends in a direction parallel to the extension direction of the first connecting rod 3341. In this embodiment, both the first connecting rod 3341 and the second connecting rod 3342 extend along a vertical line 1n, which is parallel to the mid-plane 1d and perpendicular to the transverse line 1e. The middle rod 3343 is U-shaped and includes a left connecting portion 3344, a right connecting portion 3345, and a middle portion 3346. 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 middle portion 3346 connects the left connecting portion 3344 and the right connecting portion 3345. In one embodiment, the left connecting portion 3344 is connected to the first connecting rod 3341 via screws, and the right connecting portion 3345 is connected to the second connecting rod 3342 via screws. In this way, on the one hand, the middle 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 horizontal straight line 1e. On the other hand, the middle rod 3343 can also serve to strengthen the mounting assembly 33, thereby avoiding the problem of insufficient strength of the first connecting rod 3341 and the second connecting rod 3342.

[0096] The first mounting seat 332 includes a first coupling portion 3324, a first mounting post 3322, and a first extension portion 3323. The second mounting seat 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, while the second mounting post 3332 forms the second mounting hole 3331 described above. The first coupling portion 3324 is secured to the first longitudinal beam 911. In one embodiment, a long screw is used to secure the first coupling portion 3324 to the first longitudinal beam 911. The second coupling portion 3334 is secured to the second longitudinal beam 912. In one embodiment, a long screw is used to secure the second coupling portion 3334 to the second longitudinal beam 912. The first extension portion 3323 extends from the first coupling portion 3324 away from the first longitudinal beam 911, for example, toward the left and rear sides of the mowing tractor 100. In one embodiment, the first extension portion 3323 is a metal tube with a 90-degree bend. The second extension 3333 extends from the second joint 3334 away from the second longitudinal beam 912, for example, toward the right side and rear side of the lawn mower tractor 100. In one embodiment, the second extension 3333 is a metal tube with a 90-degree bend. The first and second mounting brackets 332 and 333 extend toward the sides and rear side of the lawn mower tractor 100, increasing installation space and facilitating installation. This also widens the distance between the left and right support structures, enhancing stability. The first joint 3324, the first mounting post 3322, and the first extension 3323 are welded together. The second joint 3334, the second mounting post 3332, and the second extension 3333 are also welded together. Reinforcing ribs may be formed at the junctions between the first mounting post 3322 and the first extension 3323, and at the junctions between the second mounting post 3332 and the second extension 3333. This improves the strength of the first and second mounting brackets 332 and 333. In this way, the first mounting seat 332 and the second mounting seat 333 bear the weight of the grass collecting system 30 located behind the seat 92 , and the stress distribution borne by the first mounting seat 332 and the second mounting seat 333 is relatively uniform, thereby improving the service life of the mowing tractor 100 .

[0097] In this embodiment, the first mounting base 332 and the second mounting base 333 have simple structures and are symmetrical. The first mounting base forms a first mounting hole 3321, and the second mounting base forms a second mounting hole 3331. The first mounting hole 3321 and the second mounting hole 3331 can be used to mount the grass collecting system 30 to the vehicle frame 91. The first mounting base 332 and the second mounting base 333 are highly versatile and can also be applied to Figure 24The awning assembly 35 shown includes a sunshade assembly 351 and a mounting assembly 352 for mounting the sunshade assembly 351 to the lawn mower tractor 100. The sunshade assembly 351 includes a sunshade cover 3511. The mounting assembly 352 includes a support base 3521 and a connecting rod assembly. The support base 3521 supports the sunshade cover 3511. The connecting rod assembly includes a first connecting rod 3522, a second connecting rod 3523, and an intermediate rod 3524. The support base 3521 is connected to the connecting rod assembly. The first connecting rod 3522 and the second connecting rod 3523 form a detachable connection that allows for separation. In some embodiments, the intermediate rod 3524 forms a detachable connection with the first connecting rod 3522 and the second connecting rod 3523, respectively. The first connecting rod 3522 and the second connecting rod 3523 are inserted into the first mounting hole 3321 and the second mounting hole 3331, respectively, to mount the sunshade assembly 351 to the vehicle frame 91.

[0098] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A riding lawn mowing device comprising: A seat for a user to sit on, comprising a seat cushion and a backrest; a frame for supporting the seat; A travel assembly, used for driving the riding lawn mowing device to travel; a cutting assembly comprising a cutter disc and a mowing element for mowing grass, the mowing element being at least partially housed in the cutter disc, the cutting assembly being mounted to the frame; a grass collecting basket assembly, for collecting grass clippings cut by the cutting assembly, wherein the grass collecting basket assembly is detachably mounted behind the backrest; a grass collecting cylinder configured to connect the grass collecting basket assembly and the cutter disc; The grass collecting barrel includes a first end surface and a second end surface, the first end surface is connected to the cutter disc, and the second end surface is connected to the grass collecting basket assembly. The angle between the line connecting the center point of the first end surface and the center point of the second end surface and the plane of the frame is greater than or equal to 20° and less than or equal to 35°. The distance between the center point of the first end surface and the grass collecting basket assembly in the front-to-back direction of the riding lawn mower is less than or equal to 130 cm. Also includes: A power supply assembly, used to supply power to the cutting assembly and the traveling assembly; A front cover is located at the front of the riding lawn mower and is used to cover the power supply assembly; the center of gravity of the riding lawn mower is lower than the seat cushion in the vertical direction.

2. The riding lawn mowing device according to claim 1, wherein One end of the grass collecting cylinder connected to the cutter disc has a flat triangular area.

3. The riding lawn mowing device according to claim 2, wherein: The area of ​​the triangular region is greater than or equal to 26 square centimeters and less than or equal to 31 square centimeters.

4. The riding lawn mowing device according to claim 1, wherein The grass collecting basket assembly comprises a grass basket body and a grass basket cover. A grass collecting tube receiving opening is formed on the grass basket cover, and the grass collecting tube receiving opening protrudes from the grass basket body.

5. The riding lawn mowing device according to claim 4, wherein: An angle formed by the connecting surface between the grass collecting tube receiving port and the grass collecting tube and the plane where the frame is located is greater than or equal to 50° and less than or equal to 70°. 6 . The riding lawn mowing device according to claim 1 , further comprising a mounting base detachably mounted on the vehicle frame, the mounting base being used to mount various auxiliary accessories.

7. The riding lawn mowing device according to claim 6, wherein: The grass collecting basket assembly includes a grass collecting basket connecting rod, and the grass collecting basket connecting rod can be fixed to the mounting seat.

8. The riding lawn mowing device of claim 6, further comprising a sunshade assembly, wherein the sunshade assembly comprises a sunshade connecting rod, and the sunshade connecting rod is fixable to the mounting seat.

9. The riding lawn mowing device according to claim 6, wherein: The mounting seat includes a first mounting seat and a second mounting seat, the vehicle frame includes a first longitudinal beam and a second longitudinal beam, the first mounting seat is mounted to the first longitudinal beam, and the second mounting seat is mounted to the second longitudinal beam.

10. The riding lawn mowing device according to claim 7, wherein The grass collecting barrel further comprises an observation portion, which is made of a transparent material for the user to observe and judge whether the grass collecting basket assembly is full of grass.

Images