Riding vehicle

Abstract

The application discloses a kind of riding vehicles, comprising: seat for user to ride;Frame, support seat;Walking component, for driving riding vehicles walk;Power supply component, for at least for walking component power supply;Front cover, located in the front of riding vehicles, for covering power supply component;Power supply component includes at least two battery packs.

Description

Technical Field

[0001] This application relates to a garden tool, such as a rideable vehicle. Background Technology

[0002] Ride-on lawnmowers are widely used as gardening tools for mowing lawns and vegetation. Compared to push lawnmowers, tractor-driven lawnmowers are less strenuous and more efficient. Currently, most tractor-driven lawnmowers on the market use diesel fuel, which not only generates significant noise and pollutes the environment but also requires frequent replacement of wear parts in the fuel system, increasing maintenance costs. Furthermore, due to the larger size of the diesel engine, tractor-driven lawnmowers typically have a high front cover, resulting in a larger blind spot. Additionally, the weight of the diesel engine usually results in a heavy front wheel load, making steering difficult and less maneuverable. Summary of the Invention

[0003] To address the aforementioned issues, this application discloses a riding vehicle, comprising: a seat for a user to sit on; a frame for supporting the seat; a walking assembly for driving the riding vehicle; a power assembly for supplying power to at least the walking assembly; and a front cover located at the front of the riding vehicle for covering the power assembly; the power assembly comprising at least two battery packs.

[0004] In one embodiment, the power supply assembly includes six battery packs.

[0005] In one embodiment, the power supply assembly further includes a built-in battery cell module.

[0006] In one embodiment, the built-in cell module is disposed behind at least two battery packs.

[0007] In one embodiment, the walking assembly includes at least a first walking wheel disposed at the front of the riding vehicle, and the height difference between the highest point of the battery pack furthest from the seat and the center point of the first walking wheel is less than or equal to 45 cm.

[0008] In one embodiment, the highest point of the battery pack furthest from the seat among at least two battery packs is at least 63 cm away from the plane of the riding vehicle.

[0009] In one embodiment, the first traveling wheel is at least partially located in front of at least two battery packs in the longitudinal direction of the riding vehicle.

[0010] In one embodiment, the riding vehicle has a split surface, with at least two battery packs symmetrically distributed about the split surface.

[0011] In one embodiment, the power assembly includes a first battery compartment having a first recess, wherein a battery pack is detachably inserted into and removed from the first recess along the extension direction of the first recess.

[0012] In one embodiment, the front cover also forms a storage space, which is located at least above the power supply assembly.

[0013] The riding vehicle disclosed in this application has a power supply assembly located at the front of the vehicle and includes at least two battery packs, which facilitates the user to plug and unplug the battery packs to charge them or to use them with other power tools. Attached Figure Description

[0014] Figure 1 This is a perspective view of a lawn mowing tractor according to one embodiment of this application;

[0015] Figure 2 yes Figure 1 A side view of a lawnmower tractor;

[0016] Figure 3 yes Figure 1 A bottom view of a lawnmower tractor;

[0017] Figure 4 yes Figure 1 A side view of a mowing tractor with its grass collection system installed.

[0018] Figure 5 yes Figure 1 A 3D view of a lawnmower tractor with its front cover open;

[0019] Figure 6 yes Figure 1 Side view of a lawnmower tractor with the front cover open;

[0020] Figure 7A This is a schematic diagram of a power supply assembly according to an embodiment of this application;

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

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

[0023] Figure 8A This is a perspective view of a lawnmower tractor with its front cover open, according to another embodiment of this application.

[0024] Figure 8B This is a perspective view of a lawnmower tractor with its front cover open, according to another embodiment of this application.

[0025] Figure 8C This is a perspective view of a lawnmower tractor with its front cover open, according to another embodiment of this application.

[0026] Figure 9A This is a schematic diagram of a power supply assembly and storage space according to one embodiment of this application;

[0027] Figure 9B This is a schematic diagram of a power supply assembly and storage space according to another embodiment of this application;

[0028] Figure 9C This is a schematic diagram of a power supply assembly and storage space according to another embodiment of this application;

[0029] Figure 9D This is a schematic diagram of a power supply assembly and storage space according to another embodiment of this application;

[0030] Figure 9E This is a schematic diagram of a power supply assembly and storage space according to another embodiment of this application;

[0031] Figure 9F This is a schematic diagram of a power supply assembly and storage space according to another embodiment of this application;

[0032] Figure 10 yes Figure 1 A three-dimensional diagram of some structural components of a lawnmower tractor;

[0033] Figure 11 yes Figure 1 A 3D view of the control panel of a lawnmower tractor;

[0034] Figure 12 yes Figure 1 A 3D view of a lawnmower tractor when the pedals are removed;

[0035] Figure 13 This is a schematic diagram of a lawnmower tractor according to one embodiment of this application;

[0036] Figure 14 yes Figure 1 A 3D view of the steering assembly of a lawnmower tractor;

[0037] Figure 15 yes Figure 14 A bottom view of the steering component in the middle;

[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 in the middle;

[0040] Figure 17A This is a perspective view of a cutter head height adjustment component according to an embodiment of this application;

[0041] Figure 17B This is a perspective view of a cutter head height adjustment component according to another embodiment of this application;

[0042] Figure 18 yes Figure 17A Side view of the structure in the middle;

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

[0044] Figure 20 yes Figure 1 A three-dimensional diagram of some structural components of a lawnmower tractor;

[0045] Figure 21 yes Figure 4 A 3D view of the grass collection system and cutting components of a lawnmower tractor;

[0046] Figure 22 yes Figure 21 Side view of the structure in the middle;

[0047] Figure 23 This is a perspective view of an installation component according to an embodiment of this application;

[0048] Figure 24 This is a perspective view of a sunshade assembly according to an embodiment of this application. Detailed Implementation

[0049] like Figure 1 As shown, the riding lawn mowing device disclosed herein is a lawn mowing tractor 100, which can be ridden by a user to operate for mowing lawns and other vegetation.

[0050] In this specification, the directions front, back, left, right, up, and down are described as follows: Figure 1 The directions shown are as follows. Specifically, when a user is riding on a lawn mowing tractor 100 located on the ground, the direction the user is facing is defined as forward, the direction with their back to the ground is defined as backward, the direction to their left is defined as left, the direction to their right is defined as right, the direction closest to the ground is defined as downward, and the direction furthest from the ground is defined as upward.

[0051] like Figures 1 to 4As shown, the lawn mower tractor 100 includes: a cutting assembly 10, a frame 91, a seat 92, a housing system 20, a running gear 93, a power supply assembly 96, a lighting system 40, and an operating assembly 50. The frame 91 and the 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 running gear 93 supports the main unit 100a. The lawn mower tractor 100 provides energy to the cutting assembly 10, the running gear 93, and the lighting system 40 through the power supply assembly. In this embodiment, the power supply assembly 96 is the power supply assembly of the lawn mower tractor 100. The power supply assembly 96 provides electrical energy to the various components of the lawn mower tractor 100, thereby enabling the lawn mower tractor 100 to be used as an electric tool. Compared to a fuel-powered lawn mower tractor 100, this electric lawn mower tractor 100 is more environmentally friendly and energy-efficient.

[0052] The cutting assembly 10 outputs power to enable the lawn mowing tractor 100 to function. As a power output component, the cutting assembly 10 is supported by the main unit 100a. The cutting assembly 10 includes a cutter head 11, a mowing element 12, and a first motor 13. The mowing element 12 is used to cut vegetation at high speed; for example, the mowing element 12 is a blade used to cut grass on a lawn. The cutter head 11 has a mowing space 121 formed around it to accommodate at least part of the mowing element 12. That is, the mowing element 12 is at least partially accommodated within the cutter head 11. The first motor 13 drives the mowing element 12 to rotate. Figure 3 As shown, the cutting assembly 10 is disposed below the frame 91. In one embodiment, the number of mowing elements 12 can be two, and the number of first motors 13 can be two, with each of the two first motors 13 driving one of the mowing elements 12. In another embodiment, the number of mowing elements 12 can be three, and the number of first motors 13 can be three, with each of the three first motors 13 driving one of the mowing elements 12. The mowing elements 12 are located within the mowing space 121 formed by the blade disc 11. The mowing space 121 opens downwards, allowing the mowing elements 12 to cut the vegetation located below the mowing space 121. Figure 4 As shown, the mowing tractor 100 may also include a grass collection system 30, which can be selectively 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 detachably mounted behind the seat 92. The seat 92 includes a seat cushion 921 for the user to sit on, and a backrest 922 for supporting the user's back. Therefore, it can also be said that the grass collection basket assembly 31 is mounted behind the backrest 922.

[0053] like Figures 8A-8CAs shown, the cutting assembly 10 can also be detached from the mowing tractor 100. In this case, the mowing tractor 100 can be connected to other working attachments, such as a snowplow assembly. The snowplow assembly includes a snowplow and a snowplow angle adjustment device, and can be attached to the frame 91. Strictly speaking, the mowing tractor 100 is no longer just a ride-on mowing device, but a ride-on vehicle that can perform different tasks depending on the connected working attachments. In one embodiment, the mowing tractor 100 has at least one working attachment interface, such as a hook, thread, hole, slot, etc. Because the frame 91 has a strong load-bearing capacity, at least one working attachment interface can be formed in 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 substantially in the front-to-back direction. The cutting assembly 10, housing system 20, running gear 93, power supply assembly 96, grass collection system 30, and lighting system 40 are all mounted on the frame 91. The frame 91 supports the main unit 100a of the entire mowing tractor 100. The running gear 93 supports the frame 91 to enable the mowing tractor 100 to move on the ground. The running gear 93 includes a first running gear 931 and a second running gear 932. In this embodiment, the first running gear 931 is the front running gear, including two first running wheels (front wheels), namely a left first running wheel 931L and a right first running wheel 931R; the second running gear 932 is the rear running gear, including two second running wheels (rear wheels), namely a left second running wheel 932L and a right second running wheel 932R. The radius of the second running wheels is larger than the radius of the first running wheels. The left first travel wheel 931L and the right first travel wheel 931R are connected via the front axle 934; the left second travel wheel 932L and the right second travel wheel 932R are connected via the rear axle. The travel assembly 93 also includes a second motor 933 for driving the second travel assembly 932. In one embodiment, the rear axle also includes a differential, which causes the left second travel wheel 932L and the right second travel wheel 932R to rotate at different rates under the drive of the second motor 933 when the mower tractor 100 turns or travels on uneven surfaces.

[0055] See Figure 14 and Figure 15The frame 91 includes longitudinal beams and crossbeams. 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 crossbeams, namely a first crossbeam 913 and a second crossbeam 914. The first longitudinal beam 911 is located on the left side of the seat 92, and the second longitudinal beam 912 is located on the right side 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 straight line 1b and the second straight line 1c are parallel to the midpoint 1d of the mowing tractor 100. In this embodiment, the extension directions of the first longitudinal beam 911 and the second longitudinal beam 912 are parallel to each other. In this embodiment, the plane passing through the first straight line 1b and the second straight line 1c, that is, the plane 1g where the frame 91 is located, is defined as the reference plane of the mowing tractor 100. When the mowing tractor 100 travels on the ground, that is, on plane 1f, the reference plane 1g is parallel to plane 1f. Specifically, since the frame 91 itself has a certain thickness, the plane 1g of the frame 91 referred to in this application refers to the plane where the upper edge of the frame 91 is located. A first crossbeam 913 is disposed on the front side of the seat 92, and the first crossbeam 913 is substantially located at the front end of the mowing tractor 100, thus also serving as a front bumper protecting the front end of the mowing tractor 100 from damage. In one embodiment, the first crossbeam 913 has a groove to at least partially accommodate the front axle 934. The front axle 934 can also be fixed to the front axle 934 by bolts or other fixing devices. The first crossbeam 913 and the second crossbeam 914 are substantially located at the rear end of the mowing tractor 100, thus also serving as a rear bumper protecting the rear end of the mowing tractor 100 from damage. At least a portion 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 extension directions of the first crossbeam 913 and the second crossbeam 914 are parallel to each other, while the transverse straight line 1e is perpendicular to the first straight line 1b and the second straight line 1c. In this embodiment, the height of the frame 91 is relatively low, thereby lowering the center of gravity of the entire mowing tractor 100 and making the mowing tractor 100 travel more smoothly. In one embodiment, the vertical distance H5 between the plane 1g of the frame 91 and the plane 1f of the mowing tractor 100 is greater than or equal to 35cm and less than or equal to 37cm.

[0056] The housing system 20 includes a left cover 21, a right cover 22, and a front cover 23. The front cover 23 is located at the front of the mower tractor 100 and forms the front of the mower tractor 100. The front cover 23 covers and forms a front receiving cavity 231. In one embodiment, as... Figure 5As shown, the front cover 23 includes a separately formed upper cover 232 and a retaining wall 233. After the upper cover 232 and the retaining wall 233 are assembled above the frame 91, they together form the front receiving cavity 231. In another embodiment, the front cover 23 is an integrally formed semi-enclosed structure. After the semi-enclosed structure is assembled above the frame 91, it forms the front receiving cavity 231. The front cover 23 is preferably made of metal, which facilitates heat dissipation for the power supply component 96 and increases 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 located on the left side of the seat 92, and the right cover 22 is located on the right side of the seat 92. In one embodiment, the left cover 21 at least partially covers the left second wheel 932L, and the right cover 22 at least partially covers the right second wheel 932R. The left cover 21 and the right cover 22 can be two separately molded parts, or they can be a single integrally molded part, that is, the left cover 21 and the right cover 22 are connected as one unit to form a cover, which at least partially covers the second walking assembly 932 as a whole. This application does not limit the specific structure and materials of the left cover 21 and the right cover 22.

[0057] In one embodiment, the lighting system 40 includes a front lighting component 42, a left lighting component 43, and a right lighting component 44. In another embodiment, the lighting system 40 further includes a rear lighting component. The left lighting component 43 is located on the left side of the seat 92, the right lighting component 44 is located on the right side of the seat 92, and the rear lighting component is located on the rear side of the seat 92. Specifically, the front lighting component 42 is mounted on the front cover 23 and includes a front light 421; the left lighting component 43 is mounted on the left cover 21 and includes a left light; the right lighting component 44 is mounted on the right cover 22 and includes a right light. Thus, the front lighting component 42 can illuminate the area in front of the mower tractor 100. The left lighting component 43 and the right lighting component 44 can serve as marker lights for the mower tractor 100, thereby facilitating the observation of the outline of the mower tractor 100 by other personnel in the vicinity.

[0058] The power supply assembly 96 provides power to the cutting assembly 10, the walking assembly 93, the lighting system 40, etc. The first motor 13, the second motor 933, and the lighting system 40 are all electrical devices included in the lawn mower tractor 100, which can convert electrical energy into other forms of energy. For example... Figure 5As shown in Figure 8, the power assembly 96 includes at least one battery pack for storing electrical energy. Preferably, the power assembly 96 includes at least two battery packs for storing electrical energy. The power assembly 96 is disposed at the front of the lawnmower 100 and is covered by a front cover 23. The power assembly 96 includes a battery compartment housing 961, which includes first battery compartments 162 for mounting first battery packs 161. The power assembly 96 may include first battery compartments 162, and the number of first battery compartments 162 may also be multiple. In one embodiment, the power assembly 96 includes six first battery compartments 162, and the power assembly 96 can accommodate six first battery packs 161. Compared to the fuel engine and fuel tank, even the six first battery packs 161 are relatively light in weight. Therefore, the load on the front-mounted first travel assembly 931 is lighter than the load on the rear-mounted second travel assembly 932, shifting the weight of the mower tractor 100 rearward. This reduces the steering force required for turning, making operation easier for the user. Simultaneously, the rear-mounted second travel assembly exerts a relatively greater normal force on the ground, increasing the traction of the mower tractor 100's second travel assembly and making it easier to climb slopes. In one embodiment, the load ratio of the first travel assembly 931 to the second travel assembly 932 is less than or equal to 1.2; in another embodiment, the load ratio is less than or equal to 1; and in yet another embodiment, the load ratio is less than or equal to 0.8. The center of gravity G of the mower tractor 100 is located in front of the line connecting the center points of the left second travel wheel 932L and the right second travel wheel 932R in the longitudinal direction.

[0059] See Figure 6 and Figure 8B Each first battery pack 161 can be respectively installed into each first battery compartment 162. The first battery compartment 162 can be formed with a first groove 162a. 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] Understandably, these six first battery compartments 162 can also be formed by a single, larger battery compartment. That is, the power assembly 96 includes only one battery compartment, and multiple first battery packs 161 are installed in this single battery compartment. Alternatively, the power assembly 96 may include only one first battery compartment 162, and correspondingly, the power assembly 96 may also include only one first battery pack 161. In other words, there is no particular limitation on the number of first battery compartments 162 and the number of first battery packs 161, and the correspondence between the first battery compartments 162 and the first battery packs 161 is not limited to a one-to-one correspondence. Multiple first battery packs 161 are arranged in a regular shape, for example, symmetrically distributed about the midpoint 1d of the lawnmower 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 dimension of the first battery pack 161 in the length direction is larger than its dimension in the width direction. 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 mowing tractor 100. This way, when the user needs to install or remove the first battery pack 161, the user's wrist does not need to twist, improving operational comfort.

[0061] Taking the power supply component 96 in this embodiment, which includes six first battery packs 161, as an example, according to... Figure 7A The side view shows six first battery packs 161 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 the first battery pack 161 in the left-to-right direction is greater than its width in the front-to-back direction. By arranging two first battery packs 161 in the left-to-right direction and three in the front-to-back direction, and by setting the orientation of each individual first battery pack 161 such that its length in the left-to-right direction is greater than its length in the front-to-back direction, the arrangement of the six first battery packs 161 in the front-to-back direction is avoided from becoming too long and increasing the overall size of the mower tractor 100 in that direction. It also avoids the six first battery packs 161 being too small in the left-to-right direction, thus failing to effectively utilize the space occupied by the mower tractor 100 in that direction. This results in a more rational arrangement of the power supply assembly 96 and saves space. Since the vertical height of the highest point of the first battery pack 161 when it is placed along direction 1a is much smaller than that of the engine, the front vertical height of the front cover 23 of the lawn mower 100 of this application is lower than that of a conventional fuel-powered lawn mower tractor. Therefore, when a user is riding in the lawn mower tractor 100, the blind spot in front is smaller. Moreover, it also lowers the center of gravity G of the lawn mower tractor 100. In this embodiment, the center of gravity G of the lawn mower tractor 100 is lower than that of 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, according to... Figure 7B The side view shows six first battery packs 161 arranged in two rows. The front row includes two first battery packs 161 arranged in a left-right direction, and the rear row includes four stacked first battery packs 161. More specifically, the rear row includes two layers, with the lower layer including two first battery packs 161 arranged in a left-right direction and the upper layer including two first battery packs 161 arranged in a left-right direction. This arrangement further shortens the length of the six first battery packs 161 in the front-rear direction. Simultaneously, since the front row still only has one layer of two first battery packs 161 arranged in a left-right direction, the front height of the power assembly 96 is lower. Therefore, the vertical height of the front of the front cover is lower, resulting in a smaller blind spot when the user is riding on the lawnmower tractor. Furthermore, since there are only two rows of first battery packs 161 in the front-rear direction, the first battery packs 161 can also be folded down, such as... Figure 7C As shown, this further reduces the height of the power supply assembly 96. Figure 6 As shown, in one embodiment, the height difference H1 between the highest point of the battery pack 161 furthest from the seat 92 and the center point of the first wheel is less than or equal to 50 cm; in another embodiment, the height difference H1 between the highest point of the battery pack 161 furthest from the seat 92 and the center point of the first wheel is less than or equal to 45 cm; in yet another embodiment, the height difference H1 between the highest point of the battery pack 161 furthest from the seat 92 and the center point of the first wheel is less than or equal to 44 cm. Furthermore, because the frame of the lawnmower 100 is relatively low, the vertical distance between the first battery pack 161 and the plane on which the lawnmower 100 is located is also relatively small. In one embodiment, the vertical distance H2 between the highest point of the battery pack 161 furthest from the seat 92 and the plane 1f on which the lawnmower 100 is located is less than or equal to 63 cm; in yet another embodiment, the vertical distance H2 between the highest point of the battery pack 161 furthest from the seat 92 and the plane 1f on which the lawnmower 100 is located is less than or equal to 62 cm.

[0063] In addition to including only the first battery pack 161, the power assembly 96 can also be configured as a combination of a built-in battery cell module 163 and an external battery pack, wherein the external battery pack can be the first battery pack 161 or other removable battery packs. Figures 8A to 8CAs shown, in one embodiment, the power assembly 96 includes two first battery packs 161 and a row of built-in battery cell modules 163. In another embodiment, the power assembly 96 includes two first battery packs 161 and two rows of built-in battery cell modules 163. Compared to detachable external battery packs, the built-in battery cell modules 163 are less expensive and more compact, saving space and cost while providing more ample energy reserves for the lawnmower 100. Simultaneously, the inclusion of a certain number of detachable external battery packs also ensures the flexibility of the power assembly 96. For example, users can take only the first battery packs 161 with them for charging without having to drive the entire lawnmower 100 to a charging station. When it is inconvenient or time-consuming for users to charge the built-in battery cell modules 163 of the lawnmower 100, they can directly insert the first battery packs 161 to meet short-term mowing needs. The first battery packs 161 can also be adapted to and power other power tools. In one embodiment, the first battery pack 161 can be installed in the first battery compartment 162, which is located in front of the built-in battery cell module 163. This way, when the user installs or removes the first battery pack 161, there is no need to go through the built-in battery cell module 163, thus making it convenient for the user to install or remove the first battery pack 161.

[0064] The power supply assembly 96 also includes a battery management system (BMS), specifically implemented via a battery management circuit board 964. Since the externally mounted first battery pack 161 typically integrates its own BMS, the battery management circuit board 964 in this embodiment is primarily used to manage the charging process of the built-in cell module 163 and the coordinated discharge between the first battery pack 161 and the built-in cell module 163. Figure 8A As shown, the battery management circuit board 964 is placed behind the built-in battery cell module 163, which is relatively close to the module and has a shorter wiring path. However, placing the battery management circuit board 964 behind the module 163 is not conducive to heat dissipation. Figure 8B As shown, the battery management circuit board 964 is positioned in front of the first battery pack 161, meaning it is located at the very front of the receiving cavity covered by the front cover 23. Simultaneously, the front of the front cover has a ventilation opening, allowing the battery management circuit board 964 to be directly exposed to the wind when the mowing tractor 100 moves forward, resulting in good heat dissipation. However, at this time, the battery management circuit board 964 is relatively far from the built-in battery cell module 163, resulting in a longer wiring path. Figure 8CAs shown, the battery management circuit board 964 is positioned above the built-in battery cell module 163, meaning it is located above the receiving cavity covered by the front cover 23. Simultaneously, the top of the front cover has a vent, allowing the battery management circuit board 964 to be directly exposed to the wind when the mowing tractor 100 moves forward, resulting in good heat dissipation. Furthermore, the proximity of the battery management circuit board 964 to the built-in battery cell module 163 results in a shorter wiring path; however, this somewhat affects the storage space above the built-in battery cell module 163.

[0065] In addition to accommodating the power supply assembly 96, the front cavity 231 formed by the front cover 23 also provides ample storage space 234 for storage purposes. The front cover 23 includes a top cover 232, which has an open position and a closed position. When the top 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 clothing, depending on the user's needs, improving convenience and comfort during lawn mowing. Figure 9A As shown, the power assembly 96 includes a row of first battery packs 161 and a row of built-in battery cell modules 163. The first battery packs 161 are located in front of the built-in battery cell modules 163, and the battery management circuit board 964 is located behind the built-in battery cell modules 163. The first battery packs 161 and the built-in battery cell modules 163 are located at the front and middle of the front receiving cavity 231. In this case, the area behind and above the built-in battery cell modules 163 is configured as storage space 234a. Figure 9B As shown, the power assembly 96 includes a row of first battery packs 161 and a row of built-in battery cell modules 163. The first battery packs 161 are located in front of the built-in battery cell modules 163, with a gap between them. Specifically, the first battery packs 161 are positioned at the front of the front receiving cavity 231, and the built-in battery cell modules 163 are positioned at the rear of the front receiving cavity 231. In this case, the space above the built-in battery cell modules 163 and the gap between the first battery packs 161 and the built-in battery cell modules 163 is designated as storage space 234b. Figure 9C As shown, the power assembly 96 includes a row of first battery packs 161 and a row of built-in battery cell modules 163. The first battery packs 161 are located in front of the built-in battery cell modules 163. The first battery packs 161 and the built-in battery cell modules 163 are disposed in the middle and rear of the front receiving cavity 231, respectively. In this case, the area in front of the first battery packs 161 and above the built-in battery cell modules 163 is configured as a 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 assembly 96 includes a row of first battery packs 161 and two rows of built-in battery cell modules 163. The first battery packs 161 are located in front of the built-in battery cell modules 163. The first battery packs 161 and the built-in battery cell modules 163 are disposed at the front, middle, and rear of the front receiving cavity 231. In this configuration, the space above the two rows of built-in battery cell modules 163 is designated as a storage space 234d. Of course, the power assembly 96 is not limited to a combination of first battery packs 161 and built-in battery cell modules 163; the power assembly 96 may also consist only of the first battery packs 161 or only of the built-in battery cell modules 163. Figure 9E As shown, the power assembly 96 includes three rows of first battery packs 161, which are respectively disposed at the front, middle, and rear of the front receiving cavity 231. The space above the first battery packs 161 is configured as a storage space 234e. Figure 9F As shown, the power assembly 96 includes three rows of built-in battery cell modules 163, which are respectively disposed at the front, middle, and rear of the front receiving cavity 231. The battery management circuit board 964 is disposed behind the built-in battery cell modules 163. The space above the built-in battery cell modules 163 is designated as a storage space 234f. To avoid interference between stored items and the power assembly 96, such as interference with the first battery pack 161, the built-in battery cell modules 163, or the battery management circuit board 964, the storage space 234f can be divided by partitions. The partitions can be plastic parts, and their shape depends on the specific form of the storage space 234f, which will not be detailed here. The upper cover 232 of the front cover 23 can be movably and rotatably connected to the front cover 23f via a slide rail, hinge, or other structure, which will not be detailed here. The upper cover 232 of the front cover 23f can be opened according to the configuration of the storage space; this application does not limit the specific shape and size of the upper cover 232.

[0066] See Figures 10 to 14The operating components 50 of the lawn mower tractor 100 include 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 and the steering assembly 60, and transmits the torque of the user turning the steering wheel 561 to the steering assembly 60 to control the first travel assembly to change direction. The control panel 52 is connected to the front cover 23. The control panel 52 includes a display screen 51 and multiple operating components 55, so that the user can conveniently see the display status on the display screen 51 while operating multiple operating components 55, which is more in line with ergonomic design. The display screen 51 is used to display the status information of the mowing tractor 100; multiple operating elements 55 can be operated by the user to control the walking 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 with different shapes and sizes so that the user can operate different operating elements 55 without looking at them.

[0067] like Figure 11As shown, multiple operating components 55 include a keyhole 554. When a key is inserted into the keyhole 554, the lawn mower 100 can be started; when no key is inserted into the keyhole 554, the power to the lawn mower 100 is cut off, and it cannot be started. In one embodiment, when the key is inserted into the keyhole 554, the switch located within the keyhole 554 can be activated. That is, when the key is inserted into the keyhole 554, the switch located within the keyhole 554 can be activated without turning the key, thus 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 closes the keyhole 554, thereby preventing moisture, dust, etc., from entering the keyhole 554. When the key 551 is inserted into the keyhole 554, the safety cover is pressed downward to open the keyhole 554. The keyhole 554 is formed in the control panel 52, and the safety cover can be 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 triggered, the mowing tractor 100 enters a standby state. At this time, the user can operate other operating components 55 to put the mowing tractor 100 into a walking state or a mowing state, etc. The multiple operating components 55 also include a first push rod 553, which has at least a first position and a second position. When the first push rod 553 is set to the first position, the mowing tractor 100 is in a forward state; when the push rod is set to the second position, the mowing tractor 100 is in a reverse state. When the mowing tractor 100 is in a forward state, the user can control the forward speed of the mowing tractor 100 through the pedal assembly 59; when the mowing tractor 100 is in a reverse state, the user can control the reverse speed of the mowing tractor 100 through 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 set to the first position, the mowing element rotates; when the PTO switch 555 is set to the second position, the mowing element stops. Specifically, the PTO switch 555 is in the first position when lifted and in the second position when pressed. In case of an emergency, the user can simply press the PTO switch 555 to bring the mowing element to an emergency stop, 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 a cruise control command from the user and decides whether to enter cruise control mode based on the current status. 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 working status of the mowing tractor 100. The display interface 510 is understood as a display area directly observed by the user. Different status information can be displayed on the display interface 510 as needed. The display interface 510 can display the travel speed of the walking assembly 93, the rotation speed of the mowing element 12, the energy efficiency status of the mowing tractor 100, the remaining power information of the power supply assembly 96, warning information, fault information, and the remaining running time of the power supply assembly 96, etc. The display screen 51 also includes multiple buttons arranged around the display interface 510, such as a first button 511 and a second button 512, which are used by the user to adjust the travel speed and blade rotation speed of the mowing tractor 100, respectively. 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 presses 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 respectively located on the left and right sides of the display interface 510. A third button 513 is also provided around the display interface 510 for user operation to control the lighting function of the lawn mower tractor 100. For example, when the user operates the third button 513 using the first operation method, the lighting system 40 turns on some of the lights; when the user operates the third button 513 using the second operation method, the lighting system 40 turns on all the lights. In this embodiment, a fourth button 514 is also provided around the display interface 510. This fourth button 514 can be operated by the user to allow the lawn mower tractor 100 to enter different driving modes, such as sport mode, standard mode, and control mode. This allows the user to select different driving modes according to personal preference, thereby improving 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 ways to configure other settings of the mowing tractor 100. For example, pressing and holding the fourth button 514 switches the driving mode, and pressing the fourth button 514 briefly enters the settings menu. The third button 513 and the fourth button 514 can be located on the lower side of the display interface 510.

[0069] like Figure 2As shown, the display screen 51 extends within an inclined plane 1h that intersects with the plane 1g of the vehicle frame 91. The display interface 510 extends within the same plane as the display screen 51. The angle formed by the inclined plane 1h of the extended display screen 51 intersecting with the plane 1g of the vehicle frame 91 is greater than or equal to 20 degrees and less than or equal to 45 degrees; or, the angle formed by the inclined plane 1h of the extended display screen 51 intersecting with 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 upwards at an angle, making it convenient for the user to observe the status information on the display screen 51 while seated on the seat 92, without requiring the user to look down to observe the status information. In this embodiment, the inclined plane 1j of the extended steering wheel 561 is substantially parallel to the inclined plane 1i of the extended control panel 52. The angle formed by the intersection of the inclined plane 1h of the extended display screen 51 and the plane 1g of the frame 91 is greater than the angle formed by the intersection of the inclined plane 1i of the extended control panel 52 and the plane 1g of the frame 91. Similarly, the angle formed by the intersection of the inclined plane 1h of the extended display screen 51 and the plane 1g of the frame 91 is greater than the angle formed by the intersection of the inclined plane 1j of the extended steering wheel 561 and the plane 1g of the frame 91. The angle formed by the inclined plane 1i of the extended control panel 52 and the plane 1g of the frame 91 is greater than or equal to 5 degrees and less than or equal to 35 degrees; or, the angle formed by the inclined plane 1i of the extended control panel 52 and the plane 1g of the frame 91 is greater than or equal to 10 degrees and less than or equal to 30 degrees. Similarly, the angle formed by the inclined plane 1j extending from the steering wheel 561 and the inclined plane 1g of the frame 91 is greater than or equal to 5 degrees and less than or equal to 35 degrees; or, the angle formed by the inclined plane 1j extending from the steering wheel 561 and the inclined plane 1g of the frame 91 is greater than or equal to 10 degrees and less than or equal to 30 degrees. Meanwhile, to facilitate a comfortable grip on the steering wheel 561 when seated in 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 displayed on the interface 510 is easily viewable by the user. The size of the interface 510 is understood as the display area exposed that can be observed by the user. For example... Figure 11As shown, in this embodiment, the display interface 510 is basically rectangular. 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 is greater than or equal to 6 cm and less than or equal to 10 cm. This ensures that 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 as follows: 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 below the display interface 510. When the user sits in 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's complete view of the display interface 510 through the opening. Preferably, since the support rod 562 passes below the display interface 510 and supports the steering wheel 561 from the center, the large opening is located in the upper half of the steering wheel 561, and the display interface 510 faces this 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, and 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 observe the entire display interface 510 from the opening of the steering wheel 561, and the size of the display interface 510 is sufficiently large. For a non-circular steering wheel, the diameter L1 of the steering wheel 561 refers to the maximum length of the steering wheel 561 in the left-right direction of the mowing tractor 100. In one embodiment, the length of the display interface 510 is approximately equal to half the diameter L1 of the steering wheel 561. In one embodiment, the ratio of the perimeter of the display interface 510 to the perimeter of the steering wheel 561 is greater than or equal to one-quarter and less than or equal to one-half. In another embodiment, the ratio of the perimeter of the display interface 510 to the perimeter of the steering wheel 561 is greater than or equal to one-third and less than or equal to one-half.

[0071] The lawnmower 100 also includes a signal circuit board 951. The signal circuit board 951 receives status information from the lawnmower 100 and transmits it to the display circuit board 953 of the display screen 51. The signal circuit board 951 also receives switch signals from various operating components 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. That is, the display screen and multiple operating components are located on the front of the control panel 52. Furthermore, the steering wheel support rod 562 passes through the control panel 52, and the steering wheel protrudes from the front of the control panel 52, parallel to the display screen. The signal circuit board 951 is located on the back of the control panel 52. Therefore, the signal circuit board 951 is positioned on the upper part of the lawnmower 100, close to the display screen 51 and various operating components 55, resulting in economical and simple wiring. This location facilitates maintenance; the signal circuit board 951 can be removed for maintenance or replacement by flipping up the control panel 52. Furthermore, since the signal circuit board 951 is located at the top of the device, this area is not typically exposed to water during use, thus preventing water ingress and potential failure of the signal circuit board 951. Additionally, separating the signal circuit board 951 from the high-current control circuit board 952 helps avoid interference between strong and weak electrical signals.

[0072] The lawn mowing tractor 100 also includes a control circuit board 952. The control circuit board 952 controls the cutting assembly 10 and the walking assembly 93. For the cutting assembly 10, the control circuit board 952 controls the operation of the first motor 13. For the walking assembly 93, the control circuit board 952 controls the operation of the second motor 933. In this embodiment, as... Figure 12 As shown, the control circuit board 952 is mounted to the frame 91. In the front-to-back direction, the control circuit board 952 is positioned between the seat 92 and the power assembly 96; further, the control circuit board 952 is positioned between the seat 92 and the support rod 562. In one embodiment, the control circuit board 952 is positioned below the maintenance cover 25 of the lawnmower tractor 100, i.e., the area where the user's feet are placed when sitting on the seat 92. In the vertical direction, the control circuit board 952 is positioned between the maintenance cover 25 and the cutter head 11. In the horizontal direction, the control circuit board 952 is positioned between two longitudinal beams, namely, between the first longitudinal beam 911 and the second longitudinal beam 912. This layout saves space, facilitates wiring, makes the overall structure more compact, and also benefits the heat dissipation of the control circuit board 952 and its later maintenance.

[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. Because 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, wiring is saved and simplified. Figure 13As shown, the main control circuit board 952 includes a cutting control module 9521 and a walking control module 9522. The cutting control module 9521 is electrically connected to the first motor 13 via wires, and the walking 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 walking control module 9522 are also electrically connected to a signal circuit board 951 to receive electronic signals from various operating components 55 and buttons on the control panel 52. Since the top and bottom of the control circuit board 952 are open to the air, when the mowing tractor 100 is moving, the oncoming wind blows across the top and bottom of the control circuit board 952, carrying away the heat from the control circuit board 952. In one embodiment, the main control circuit board 952 can be encapsulated in a main control box, thereby protecting the circuit components and achieving waterproof and dustproof effects. When maintenance is required, only the pedals need to be removed and the main control box opened to repair or replace the control circuit board 952, making the operation convenient. Furthermore, since the control circuit board 952 is located above the cutter head 11, this part is not usually submerged in water during normal use, thus preventing the control circuit board 952 from malfunctioning due to water ingress. In one embodiment, the center of gravity G of the lawnmower 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 lawn mower tractor 100 drives the first travel assembly 931 to turn; that is, the steering assembly 60 enables the left first travel wheel 931L and the right first travel wheel 931R to turn. Figure 14 and Figure 15 As shown, the steering assembly 60 is mainly located behind the first travel assembly 931. The first travel assembly 931 is at least partially located in front of the power assembly 96 in the longitudinal direction of the mower tractor 100, thereby protecting the power assembly 96. Specifically, the left first travel wheel 931L and the right first travel wheel 931R are at least partially located in front of the first battery pack 161 in the longitudinal direction of the mower tractor 100. The support rod 562 connects the steering wheel 561 and the steering assembly 60, transmitting the steering force applied by the user to the steering wheel 561 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. The steering wheel 561 includes a gear ring (not shown) in the center that meshes with the gear. When the user turns the steering wheel 561, the gear ring of the steering wheel 561 drives the gear 601 of the support rod 562 to rotate synchronously. See also Figure 15The steering assembly 60 includes a steering gear 61 and a steering tie rod 62 linked to the steering gear. In this embodiment, the steering gear 61 and the steering tie rod 62 are disposed below the frame 91. The steering gear 61 may be a sector-shaped gear, the sector including two straight edges and one arc edge 613, with a row of teeth formed on the arc edge 613. The two straight edges include a first straight edge 611 and a second straight edge 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 edge 611 and the arc edge 613, and the second tie rod 622 is connected at the intersection of the second straight edge 612 and the arc edge 613. In one embodiment, the steering gear 61 is connected to the first tie rod 621 and the second tie rod 622 respectively via ball joints. The first tie rod 621 is connected to the steering knuckle 631L of the left first travel wheel 931L via a ball joint, and the second tie rod 622 is connected to the steering knuckle 631R of the right first travel wheel 931R via a ball joint. The ball joint allows for a certain degree of freedom while linking the connected components, making turning smoother. In this embodiment, the steering knuckles 631L and 631R of the left first travel wheel 931L and right first travel wheel 931R are located below the front axle 934 in the vertical direction. A gear 602 is also fixedly installed at the end of the support rod 562 connected to the steering assembly 60. This gear 602 rotates synchronously with the support rod 562 and, consequently, with the steering wheel 561. The gear 602 meshes with a row of teeth on the arc edge 613 of the steering gear 61. When the support rod 562 rotates, the gear 602 drives the steering gear 61 to rotate, and the rotation of the steering gear 61 drives the first tie rod 621 and the second tie rod 622. Subsequently, the first linkage 621 drives the steering knuckle 631L of the left first traveling wheel 931L to rotate, and the second linkage 622 drives the steering knuckle 631R of the right first traveling wheel 931R to rotate. The steering knuckle is fixedly connected to the kingpin of the first traveling wheel, controlling the direction of the kingpin, thereby driving the first traveling assembly 931 to steer. Specifically, the steering knuckle 631L of the left first traveling wheel 931L is fixedly connected to the left kingpin 632L; the steering knuckle 631R of the right first traveling wheel 931R is fixedly connected to the right kingpin 632R. For example, when the steering wheel 561 is turned counterclockwise, the support rod 562 also rotates counterclockwise. The counterclockwise rotation of the gear 602 causes the steering disc 61 meshing with it to rotate clockwise. Therefore, the first tie rod 62 pushes the steering knuckle 631L of the left first travel wheel 931L outward, and the second tie rod 622 pulls the steering knuckle 631R of the right first travel wheel 931R inward, causing both the left first travel wheel 931L and the right first travel wheel 931R to deflect to the left, thereby driving the mowing tractor 100 to turn to the left.

[0075] The lawnmower 100 has a split plane 1d that extends in the front-to-back direction. The steering assembly 60 is symmetrical about the split plane 1d; specifically, the first tie rod 621 and the second tie rod 622 are symmetrical to each other, and the steering gear 61 itself is symmetrical about the split plane 1d. Therefore, the maximum left steering angle of the left first travel wheel 931L is equal to the maximum right steering angle of the right first travel wheel 931R; the maximum right steering angle of the left first travel wheel 931L is equal to the maximum left steering angle of the right first travel wheel 931R. Of course, the maximum left steering angle of the left first travel wheel 931L is greater than the maximum right steering angle of the left first travel wheel 931L, and the maximum right steering angle of the right first travel wheel 931R is greater than the maximum left steering angle of the right first travel wheel 931R. That is to say, the maximum steering angles of the left first travel wheel 931L and the right first travel wheel 931R are the same, and the maximum steering angle of the first travel wheels towards the outside of the lawnmower 100 is greater than the maximum steering angle of the first travel wheels towards the inside of the lawnmower 100. In one embodiment, the maximum steering angle of the first traveling wheel towards the outside of the mowing tractor 100 is greater than or equal to 60°; in another embodiment, the maximum steering angle of the first traveling wheel towards the outside of the mowing tractor 100 is greater than or equal to 65°; that is, the maximum steering angle of the left first traveling wheel 931L towards the left is greater than or equal to 65°, and the maximum steering angle of the right first traveling wheel 931R towards the right is greater than or equal to 65°. In one embodiment, the maximum steering angle of the first traveling assembly 931 towards the inside of the mowing tractor 100 is greater than or equal to 50°; in another embodiment, the maximum steering angle of the first traveling assembly 931 towards the inside of the mowing tractor 100 is greater than or equal to 55°; that is, the maximum steering angle of the left first traveling wheel 931L towards the right is greater than or equal to 55°, and the maximum steering angle of the right first traveling wheel 931R towards the left is greater than or equal to 55°. In this case, the minimum turning radius of the mowing tractor 100 to the left and the minimum turning radius to the right are equal, and the minimum turning radius of the mowing tractor 100 is less than or equal to 90cm.

[0076] like Figure 14 and Figure 16A , Figure 16BAs shown, the lawn mowing tractor 100 also includes a support frame 65 for supporting the support rod 562. The support frame 65 includes support feet 651, which are fixed to the frame 91 by bolts or other common components. The support frame 65 limits and supports the support rod 562 at its middle section, thereby improving the rigidity and stability of the support rod 562 and improving the coaxiality of gears 601 and 602. In one embodiment, the vertical distance H7 from the support point of the support frame 65 to the plane 1g of the frame 91 is greater than or equal to 10 cm and less than or equal to 35 cm. In another embodiment, the vertical distance H7 from the support point of the support frame 65 to the plane 1g of the frame 91 is greater than or equal to 15 cm and less than or equal to 30 cm. In yet another embodiment, the vertical distance H7 from the support point of the support frame 65 to the plane 1g of the 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 improve the rigidity of the support frame 65, auxiliary support feet 652 and crossbeams 653 can also be provided. The two ends of the auxiliary support feet 652 are connected to the support feet 651 and the longitudinal beams of the frame 91, respectively, and the auxiliary support feet 652 are basically parallel to the support rod 562. The crossbeam 653 is installed between the two support feet 651 to provide reinforcement. In this embodiment, due to the use of a two-stage transmission mechanism of gear transmission and linkage transmission, a transmission ratio of 4-6 is achieved. That is to say, the ratio of the rotation angle of the steering wheel 561 to the rotation angle of the first traveling wheel toward the outer side 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 travel wheel toward the outside of the mowing tractor 100 is 4.7; in another embodiment, the ratio of the rotation angle of the steering wheel 561 to the rotation angle of the first travel wheel toward the outside of the mowing tractor 100 is 5.2.

[0077] Because the front wheel load of the mower tractor 100 is relatively small, that is, the load ratio of the first travel assembly 931 and the second travel assembly 932 is less than or equal to 1, the steering force required is small, and the user can easily operate the steering wheel to steer. In one embodiment, an additional gear transmission mechanism, similar to a reducer, can be added to maximize the overall transmission ratio, thereby further reducing the steering force required. Furthermore, the kingpin offset also affects the steering force required. The kingpin offset is the distance from the intersection of the extension line of the kingpin with the ground to the center of the tire's contact patch. When the mower tractor 100 steers, the first travel wheel rotates around its kingpin. The resistance torque exerted by the ground on the steering is proportional to the size of the kingpin offset. The smaller the kingpin offset, the smaller the steering resistance torque. Therefore, a small kingpin offset can reduce the steering force and the impact of the ground on the steering assembly 60. In this embodiment, the kingpin offset distance is equal to 5cm. That is, the distance between the intersection of the extension line of the kingpin of the left first traveling wheel 931L and the plane 1f where the mowing tractor 100 is located and the intersection of the left first traveling wheel 931L and the plane 1f where the mowing tractor 100 is located is equal to 5cm; the distance between the intersection of the extension line of the kingpin of the right first traveling wheel 931R and the plane 1f where the mowing tractor 100 is located and the intersection of the right first traveling wheel 931R and the plane 1f where the mowing tractor 100 is located is equal to 5cm.

[0078] In one embodiment, the steering assembly 60 further includes a linkage mechanism for driving the second travel assembly 932 to steer synchronously with the first travel assembly 931. In another embodiment, the steering assembly 60 further includes an electric power steering device mounted to the support rod 562. The electric power steering device includes a torque sensor, a controller, and a power steering motor. Using the steering wheel 561 as an input, the torque sensor converts the input torque into a linearly changing voltage signal. The controller then controls the power steering motor to rotate, providing steering assistance. A worm gear or similar reduction mechanism can be used to convert the rotation of the power steering motor output shaft into the rotation of the support rod 562. The electric power steering device also includes an electromagnetic clutch, which disengages to ensure safety in the event of a malfunction in the power steering motor system. In one embodiment, the power steering motor can also act on the steering gear 61.

[0079] Seat 92 is mounted to frame 91. Seat 92 is used for user seating, and frame 91 supports seat 92. Seat 92 is fixed to frame by seat support member 94. Specifically, seat support member 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 have the same shape, being inverted saddle-shaped arc-shaped metal tubes with a central recess 943 and rising edges 944 at both ends. In this embodiment, the first metal tube 941 and the second metal tube 942 are two identical components, and are symmetrical about the midline 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 recesses 943 of the first metal tube 941 and the second metal tube 942 are fixedly connected to the frame 91 by fasteners. For example, the two points of the recesses 943 of the first metal tube 941 are fixed to the first longitudinal beam 911 and the second longitudinal beam 912 by fasteners. The fasteners can be general-purpose components such as bolts, and this application does not limit the specific structure of the fasteners. Because the diameters of the first metal pipe 941 and the second metal pipe 942 are relatively small, and the seat cushion 921 of the seat 92 is mounted on the recessed portion 943 of the first metal pipe 941 and the second metal pipe 942, the seat 92 can be installed relatively low, lowering the overall center of gravity G of the machine and improving the stability of the mowing tractor 100. Figure 2 As shown, in one embodiment, the vertical distance H4 from the seat 921 to the plane 1g of the frame 91 is less than or equal to 40 cm; in another embodiment, the vertical distance H4 from the seat 921 to the plane 1g of the frame 91 is less than or equal to 37 cm. In one embodiment, the vertical distance H6 from the seat 921 to the plane 1f of the lawnmower tractor 100 is less than 73 cm.

[0080] The rising edges 944 at both ends of the first metal pipe 941 and the second metal pipe 942 extend to the left and right sides of the mowing tractor 100, respectively. For example... Figure 18 As shown, the two ends of the second metal tube 942 located at the rear are respectively above the left second traveling wheel 932L and the right second traveling wheel 932R. Therefore, as Figure 2 As shown, seat 92 is positioned 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 both direct and indirect support. Supporting the left cover 21 and the right cover 22, or supporting covers that at least partially cover the second walking assembly 932, through components mounted on the seat support 94, 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 hold a water cup for the user's convenience. The first storage box 211 can also be rectangular for the user's convenience to hold mobile phones and other miscellaneous items. 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 head height adjustment assembly 70 for adjusting the height of the cutter head 11 relative to the frame 91. The cutter head height adjustment assembly 70 includes a gear position assembly 71 and a linkage assembly 72. The gear position assembly 71 includes an adjusting member 711 and a limiting member 712. The adjusting member 711 is for user operation, and the limiting member 712 includes multiple positions for limiting the adjusting member 711 to a preset position. The linkage assembly 72 connects the gear position assembly 71 and the cutter head 11. The gear position assembly 71 is at least partially supported by the seat support member 94. Specifically, the two ends of the limiting member 712 are respectively fixed to the same side end of the rising edge 944 of the first metal tube 941 and the second metal tube 942, that is, the limiting member 712 is mounted transversely across the rising edge 944 of the first metal tube 941 and the second metal tube 942. In this embodiment, the two ends of the limiting member 712 are fixed to the right ends of the rising edges 944 of the first metal tube 941 and the second metal tube 942 by bolts or other fasteners. The right cover 22 has a groove to allow the adjusting member 711 to be exposed and moved. When the user operates the adjusting member 711, the adjusting member 711 can move relative to the limiting member 712 to different preset positions. The linkage component 72, driven by the adjusting member 711, will cause the height of the cutter head 11 to change, thereby allowing the mowing tractor 100 to have different cutting heights.

[0083] like Figure 17BAs shown, the adjusting member 711 includes an adjusting handle 7111, a gear position 7112, and a bending portion 7113. The adjusting member 711 passes through the right cover. The adjusting handle 7111 extends upwards and is operated by the user. The gear position 7112 cooperates with the limiting member 712 to keep the gear position 7112 at a preset gear position. The bending portion 7113 bends from the adjusting handle 7111 towards the main unit 100a, so that the linkage component 72 is closer to the main unit 100a in the left-right direction relative to the adjusting handle 7111. In other words, the bending portion 7113 bends from the adjusting handle 7111 towards the seat 92, so that the linkage component 72 is closer to the seat 92 in the left-right direction relative to the adjusting handle 7111. The adjusting handle 7111 is positioned above the right cover 22, allowing the user to adjust the cutter head height while seated on the seat 92 without needing to get off the machine. Furthermore, because the bend 7113 bends towards the seat 92 in the left-right direction, the adjustment handle 7111 is allowed to be further away from the seat 92 compared to the case without the bend 7113. This provides the user with sufficient space for their hands and arms to operate the adjustment handle 7111 when seated on the seat 92, without feeling cramped. Simultaneously, the size of the adjustment handle 7111 can be maximized without compromising user comfort. 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, making its size approximately the same as or larger than the width of the user's palm, thus facilitating grip.

[0084] When the user moves the adjusting member 711 relative to the limiting member 712 to different preset positions, the adjusting member 711 drives the rotating connecting 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, 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 head 11, and the second fixing member 723 is fixedly connected to the top wall 112 of the cutter head 11; or, the first fixing member 722 is fixedly connected to the top wall 112 of the cutter head 11, and the second fixing member 723 is fixedly connected to the side wall 113 of the cutter head 11. One end of the second transmission assembly 725 is suspended on 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 changing the height of the cutter head 11. One end of the first transmission assembly 724 is suspended on 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 changing the height of the cutter head 11. In one embodiment, the first transmission assembly 724 and the second transmission assembly 725 are linkage mechanisms. The first transmission assembly 724 may include a first spring 7241 to buffer the vibration of the cutter head 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 head 11 when the mowing tractor 100 is traveling and working.

[0085] The linkage rod 721 is fixedly connected to the rotating connector 726 and rotates synchronously. In one embodiment, the rotating connector 726 rotates around the axis of the linkage rod 721. Thus, when the rotating connector 726 drives the second transmission assembly 725, the linkage rod 721 also drives the first transmission assembly 724, thereby causing the first fixing member 722 and the second fixing member 723 to simultaneously exert force on the top wall 112 and side wall 113 of the cutter head 11, making it easier to adjust the height of the cutter head 11 and improving the stability of the connection between the cutter head height adjustment assembly 70 and the cutter head 11. In this embodiment, the linkage rod 721 is rotatably mounted on the first longitudinal beam 911 and the second longitudinal beam 912. To reduce the operating force required for the user to raise the height of the cutter head 11, an assist spring can also be provided, which at least partially offsets the weight of the cutter head 11. In one embodiment, see... Figure 17AA tension spring 727 is attached to the linkage rod 721. One end of the tension spring 727 is attached to the protruding arm 7211 of the linkage rod 721, and the other end is attached to the seat support, specifically to the second metal tube 942. When the user operates the adjustment component 711, the tension spring 727 retracts, causing the linkage rod 721 to rotate via the protruding arm 7211, thereby reducing the operating force required for the user to raise the height of the cutter head 11. In another embodiment, see... Figure 17B A biasing spring is installed 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 sleeved 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, and the two ends of the second torsion spring 7282 are respectively connected to the second longitudinal beam 912 and the rotating connecting member 726. When the user operates the adjusting 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; simultaneously, the biasing force of the second torsion spring 7282 drives the rotating connecting member 726 to rotate, thereby driving the second transmission assembly 725 to move, thus changing the height of the second fixed member 723. Therefore, the operating force required for the user to raise the height of the cutter head 11 is reduced. This auxiliary structure is compact and can save considerable installation space.

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

[0087] like Figure 21 and Figure 22As shown, the grass collection system 30 includes a grass collection basket assembly 31, a grass collection cylinder 32, and a mounting assembly 33. The grass collection basket assembly 31 is located behind the seat 92 and is used to collect grass clippings cut by the cutting assembly 10. The grass collection cylinder 32 connects the cutter head 11 and the grass collection basket assembly 31. The mounting assembly 33 is used to mount the grass collection basket assembly 31 to the frame 91. Figures 21 to 22 As shown, the hay collection basket assembly 31 includes a hay basket body 311 and a hay basket cover 312. The hay basket body 311 forms a hay collection space for containing hay clippings, and the hay basket cover 312 covers the upward-opening opening of the hay basket body 311. The hay basket cover 312 and the hay basket body 311 can be connected together by a snap-fit ​​structure.

[0088] The grass collection tube 32 has a channel 321 extending along an extension line 1k, which is essentially a curve, meaning the channel 321 extends substantially along a curve. This allows for smooth guidance of grass clippings from the cutter head 11 into the grass basket body 311. The grass collection tube 32 includes a first end face 322 and a second end face 323 located at both ends of the extension line 1k. The first end face 322 of the grass collection tube 32 is connected to the cutter head 11 to connect the cutting space 121 and the channel 321. The second end face 323 of the grass collection tube 32 is connected to the grass basket assembly 31 to connect the channel 321 with the grass collection space within the grass basket assembly 31. In one embodiment, the distance D1 between the center point of the first end face 322 and the grass basket assembly 31 in the longitudinal 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 face 322 and the grass basket assembly 31 in the longitudinal direction of the mowing tractor 100 is less than or equal to 110 cm. Meanwhile, to ensure that the grass clippings can be smoothly transferred from below the cutter head 11 to the grass basket body 311 through the channel 321, the upward angle of the grass collection cylinder 32 should not be too large. In one embodiment, the angle α between the line connecting the center point of the first end face 322 and the center point of the second end face 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 point of the first end face 322 and the center point of the second end face 323 and the plane 1g of the frame 91 is equal to 30°. While ensuring a low distance and slope, to ensure that the grass clippings can smoothly enter the grass collection cylinder 32 from the cutter head 11 without affecting the entry speed of the bottom grass clippings, a flat triangular area 327 is formed at one end of the grass collection cylinder 32 connected to the cutter head 11. In this way, the grass clippings move in a straight line when entering the grass collection cylinder 32 without turning. At the same time, the flattened triangular area 327 raises the lowest point of the grass collection cylinder 32, reducing the collision between the grass collection cylinder 32 and debris on the ground. It is important to understand that the triangular region 327 refers to the flattened area that forms an approximate triangle. In fact, the three sides of this 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 hay collection cylinder 32 also includes an observation section 324 for the user to observe and determine whether the hay collection basket assembly 31 is full of hay. The observation section 324 surrounds the extension line 1k, meaning the extension line 1k passes through the observation section 324. In other words, the observation section 324 is a ring-shaped window, allowing the user to easily determine whether the hay collection basket assembly 31 is full of hay when seated on the seat 92, and also when positioned on the right side of the mowing tractor 100. The length of the ring-shaped 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, ensuring a sufficiently large size for easy observation. The observation section 324 is made of a transparent material, allowing the user to directly observe whether the hay collection cylinder 32 contains hay to determine if the hay collection basket assembly 31 is full. Figure 4 As shown, the observation section 324 is located on the right side of the seat 92, and the grass collection tube 32 extends from the right side of the cutter head 11 to the right side of the grass collection basket assembly 31. The observation section 324 is also located on the front side of the backrest 922. Thus, when the user is sitting in the seat 92, the observation section 324 is located to the user's right front, so the user can see the observation section 324 with their peripheral vision while driving the mowing tractor 100 without having to turn around to check, thus avoiding affecting driving safety.

[0090] In some embodiments, such as Figure 21 and Figure 22 As shown, the grass collection cylinder 32 includes a first connecting section 325 and a second connecting section 326. The first connecting section 325 is connected to the grass collection basket assembly 31, and the second connecting section 326 is connected to the cutter head 11. The first connecting section 325 and the second connecting section 326 can be made of the same material. An observation section 324 is disposed between the first connecting section 325 and the second connecting section 326 and connects them. The observation section 324 can be made of a different material than the first connecting section 325. Dividing the grass collection cylinder 32 into the first connecting section 325 and the second connecting section facilitates storage and transportation and reduces costs.

[0091] The main body of the hay basket 311 is located behind the seat, and protrudes rearward from the seat 92 in the longitudinal direction along the mowing tractor 100. This allows the hay basket 311 to protect the seat 92 and the user, thus making the structure of the mowing tractor 100 more reliable and extending its service life. The main body of the hay basket 311 protrudes at least partially rearward from the rear bumper in the longitudinal direction along the mowing tractor 100. This serves two purposes: firstly, when the mowing tractor 100 hits an obstacle while moving backward, the hay basket device provides a certain degree of cushioning, thus protecting the seat; secondly, the rearward protrusion of the hay basket device from the rear bumper shifts the center of gravity of the entire mowing tractor 100 rearward, thereby improving the stability of the mowing tractor 100. Furthermore, the main body of the hay basket 311 protrudes from the seat back 922 in both the lateral directions along the mowing tractor 100, ensuring that the main body of the hay basket 311 is not too narrow or small to meet the hay collection requirements.

[0092] In one embodiment, such as Figure 20 As shown, the main body 311 of the hay basket includes a first hay basket portion 3112 and a second hay basket portion 3113. The first hay basket portion 3112 forms a first chamber, and the second hay basket portion 3113 forms a second chamber. The first hay basket portion 3112 and the second hay basket portion 3113 are symmetrically arranged about a plane. The distance between this plane and the first longitudinal beam 911 is less than the distance between this plane and the second longitudinal beam 912. That is, the plane is not located at the middle position of the first longitudinal beam 911 and the second longitudinal beam 912, so that the main body 311 of the hay basket protrudes to the left from the frame 91. This design provides sufficient space on the right side of the mowing tractor 100 to install the hay collection cylinder 32, thereby allowing the hay collection cylinder 32 to connect from the right side of the hay collection basket assembly 31 to the hay basket cover 312. In another embodiment, the basket body 311 comprises only one large chamber, which is also positioned biased towards the left side of the mowing tractor 100, causing the basket body 311 to protrude to the left from the frame 91, thus providing sufficient space on the right side of the mowing tractor 100 for the grass collection cylinder 32. Typically, for reasons of overall size, flexibility, and safety, the basket body 311 does not protrude beyond the left second travel wheel 932L and right second travel wheel 932R in the left-right direction along the mowing tractor 100.

[0093] The straw basket cover 312 includes a rotating part 3123 and a fixed part 3124. The rotating part 3123 is rotatably connected to the mounting assembly 33, and the fixed part 3124 is fixedly connected to the mounting assembly 33. When the rotating part 3123 is opened by the user, the straw basket body 311 opens upwards to allow the user to more directly observe the straw inside the first straw basket part 3112 and the second straw basket part 3113. Figure 21 and Figure 22As shown, the fixing part 3124 of the grass basket cover 312 also has a grass collection tube receiving port 3121 for inserting the grass collection tube 32. An annular rubber ring 3122 is also provided at the connection between the grass collection tube receiving port 3121 and the grass collection tube. After the grass collection tube 32 extends into the grass collection tube receiving port 3121, the rubber ring 3122 surrounds the grass collection tube 32, thereby achieving a better vibration reduction effect. The fixing part 3124 of the grass basket cover 312 protrudes from the grass basket body 311. Furthermore, the grass collection tube receiving port 3121 protrudes from the grass basket body 311 and tilts forward and downward, so that the grass collection tube 32 can be smoothly connected to the grass collection basket assembly 31, improving grass collection efficiency. In one embodiment, the angle β between the connecting surface of the grass collection tube receiving port 3121 and the grass collection 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 another embodiment, the angle β between the connecting surface of the grass collection tube receiving port 3121 and the grass collection 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 a first longitudinal beam 911, and the second mounting base 333 is mounted to a second longitudinal beam 912. The first mounting base 332 also forms a first mounting hole 3321, and the second mounting base 333 also forms a second mounting hole 3331. The connecting rod assembly 334 includes a first connecting rod 3341 detachably inserted into the first mounting hole 3321 and a second connecting rod 3342 detachably inserted into the second mounting hole 3331. The connecting rod assembly 334 further includes an intermediate rod 3343, which 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 collection system 30 easier to install. Thus, when installing the grass collection basket assembly 31, the first connecting rod 3341 can be inserted into the first mounting hole 3321, and the second connecting rod 3342 can be inserted into the second mounting hole 3331. Then, they are connected by the intermediate rod 3343, thereby achieving a fixed connection between the first connecting rod 3341 and the second connecting rod 3342. This also allows the connecting rod assembly 334 to be stably installed onto the frame 91. Finally, the fixing part 3124 of the grass basket cover 312 is connected to the connecting rod assembly 334, allowing the grass collection basket assembly 31 to be installed onto the frame 91 through a simple operation.

[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 midpoint 1d and perpendicular to the transverse line 1e. The intermediate 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 by screws; the right connecting portion 3345 is connected to the second connecting rod 3342 by screws. In this way, the intermediate rod 3343 serves two purposes: firstly, it connects the first connecting rod 3341 and the second connecting rod 3342, thereby fixing the first connecting rod 3341 and the second connecting rod 3342 relatively in the transverse straight line 1e direction; secondly, the intermediate rod 3343 also strengthens 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 base 332 includes a first connecting portion 3324, a first mounting post 3322, and a first extension 3323; the second mounting base 333 includes a second connecting portion 3334, a second mounting post 3332, and a second extension 3333. The first mounting post 3322 forms the first mounting hole 3321 described above; the second mounting post 3332 forms the second mounting hole 3331 described above. The first connecting portion 3324 is engaged with the first longitudinal beam 911, and in one embodiment, a long screw is used to press the first connecting portion 3324 onto the first longitudinal beam 911. The second connecting portion 3334 is engaged with the second longitudinal beam 912, and in one embodiment, a long screw is used to press the second connecting portion 3334 onto the second longitudinal beam 912. The first extension 3323 extends from the first connecting portion 3324 in a direction away from the first longitudinal beam 911, for example, extending to the left and rear sides of the lawnmower tractor 100; in one embodiment, the first extension 3323 is a 90-degree bent metal tube. The second extension 3333 extends from the second joint 3334 in a direction away from the second longitudinal beam 912, for example, extending to the right and rear sides of the mower tractor 100. In one embodiment, the second extension 3333 is a metal tube bent at 90 degrees. The first mounting base 332 and the second mounting base 333 extend to the sides and rear of the mower tractor 100, which helps to increase the installation space, facilitates installation and operation, and also widens the distance between the two support structures, increasing stability. The first joint 3324, the first mounting post 3322, and the first extension 3323 are welded together, and the second joint 3334, the second mounting post 3332, and the second extension 3333 are welded together. A reinforcing rib can be formed at the connection between the first mounting post 3322 and the first extension 3323, and a reinforcing rib can be formed at the connection between the second mounting post 3332 and the second extension 3333. In this way, the strength of the first mounting base 332 and the second mounting base 333 can be improved. In this way, the first mounting base 332 and the second mounting base 333 bear the weight of the grass collection system 30 located behind the seat 92, and the stress distribution of the first mounting base 332 and the second mounting base 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 allow the grass collection system 30 to be mounted to the frame 91. The first mounting base 332 and the second mounting base 333 are highly versatile and can also be used for applications such as... Figure 24The sunshade assembly 35 is shown. The sunshade assembly 35 includes a sunshade assembly 351 and a mounting assembly 352 for mounting the sunshade assembly 351 to the lawnmower 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, and 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, and the first connecting rod 3522 and the second connecting rod 3523 form a detachable connection that allows them to disengage from each other. In some embodiments, the intermediate rod 3524 is detachably connected to both the first connecting rod 3522 and the second connecting rod 3523. The first connecting rod 3522 and the second connecting rod 3523 are inserted into a first mounting hole 3321 and a second mounting hole 3331, respectively, thereby mounting the sunshade assembly 351 to the frame 91.

[0098] Note that the above description is merely a preferred embodiment 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 various obvious changes, readjustments, and substitutions can be made 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 which is determined by the scope of the appended claims.

Claims

1. A riding vehicle, comprising: Seats are used for users to sit on; The frame is used to support the seat; A walking assembly for driving the riding vehicle. A power supply assembly for at least powering the walking assembly; A front cover, located at the front of the riding vehicle, is used to cover the power assembly; The feature is that the front cover is provided with a front receiving cavity, the power assembly includes at least two battery packs, the at least two battery packs are detachably disposed in the front receiving cavity, the walking assembly includes at least a first walking wheel disposed at the front of the riding vehicle, the height difference between the highest point of the battery pack farthest from the seat and the center point of the first walking wheel is less than or equal to 45cm, and the front cover is also provided with a storage space, the storage space being separated from the power assembly by a partition.

2. The riding vehicle as described in claim 1, characterized in that, The power assembly includes six battery packs.

3. The riding vehicle as described in claim 1, characterized in that, The power supply assembly also includes a built-in battery cell module.

4. The riding vehicle as described in claim 3, characterized in that, The built-in battery cell module is located at the rear of the at least two battery packs.

5. The riding vehicle as described in claim 1, characterized in that, The vertical distance between the highest point of the battery pack furthest from the seat and the plane of the riding vehicle is less than or equal to 63 cm.

6. The riding vehicle as described in claim 1, characterized in that, The first traveling wheel is at least partially located in front of the at least two battery packs in the longitudinal direction of the riding vehicle.

7. The riding vehicle as described in claim 1, characterized in that, The riding vehicle has a split surface, and the at least two battery packs are symmetrically distributed about the split surface.

8. The riding vehicle as described in claim 1, characterized in that, The power assembly includes a first battery compartment having a first groove, and the battery pack can be detachably inserted into and removed from the first groove along the extension direction of the first groove.

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