Manned mower

Abstract

The invention discloses a manned lawn mower. The manned lawn mower comprises a seat; the frame is used for supporting the seat; the cutting assembly is mounted on the frame and comprises a mowing element for mowing; the walking assembly is mounted on the frame and comprises a left walking wheel and a right walking wheel; the energy storage device is arranged on the front side of the seat and used for supplying power to the cutting assembly and the walking assembly; the front covering part is arranged at the front part of the manned mower, and an accommodating cavity is formed in the front covering part and is at least used for accommodating the energy storage device; in the front-back direction, the gravity center of the energy storage device is located in front of the connecting line of the center points of the left walking wheel and the right walking wheel. By the adoption of the technical scheme, the energy storage device is high in cruising ability, the energy storage device is compact in structure, and the reserved storage space is large.

Description

Technical Field

[0001] The present application relates to a garden tool, in particular to a manned lawn mower. Background Art

[0002] A manned mowing device in the related art is widely used as a garden tool in the fields of mowing lawns, vegetation, etc. Compared with a push-type lawn mower, a mowing tractor is more labor-saving and has a higher mowing efficiency. On the market, mowing tractors usually use diesel as energy supply, which not only makes a lot of noise and pollutes the environment, but also requires frequent replacement of wearing parts in the fuel system, thereby increasing maintenance costs. Due to the large size of the fuel engine, the front space of the mowing tractor is mostly used to arrange the fuel system.

[0003] This section provides background information related to the present application which is not necessarily prior art. Summary of the invention

[0004] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a manned lawn mowing device, in which the center of gravity of the battery pack is set in front of the front wheel axis, and the power control board is placed above the battery pack, so that a large space is left behind the battery pack as a storage space, which is convenient for users to store and take items.

[0005] In order to achieve the above objectives, the present application adopts the following technical solutions: a manned lawn mower, comprising: a seat; a frame for supporting the seat; a cutting assembly mounted on the frame, comprising a mowing element for mowing grass; a traveling assembly mounted on the frame, comprising a left traveling wheel and a right traveling wheel; an energy storage device, arranged on the front side of the seat, for supplying power to the cutting assembly and the traveling assembly; a front cover, arranged on the front of the manned lawn mower, the front cover forming a accommodating cavity, at least for accommodating the energy storage device; in the front-to-back direction, the center of gravity of the energy storage device is located in front of the line connecting the center points of the left traveling wheel and the right traveling wheel.

[0006] In some embodiments, the energy storage device is non-removably mounted to the manned lawn mower.

[0007] In some embodiments, the energy storage device includes at least one battery pack, and at least one battery pack includes a lithium iron phosphate battery cell.

[0008] In some embodiments, the total energy of the at least one battery pack is greater than or equal to 2 kW·h.

[0009] In some embodiments, in the up and down direction, the distance H from the center of gravity of the energy storage device to the walking plane is greater than or equal to 380 mm and less than or equal to 520 mm.

[0010] In some embodiments, in the front-to-back direction, a distance L2 from the center of gravity of the energy storage device to the connecting line is greater than or equal to 0 mm and less than or equal to 200 mm.

[0011] In some embodiments, the energy storage device is disposed on the front side of the seat in the front-to-rear direction and located at the front of the accommodating cavity.

[0012] In some embodiments, the energy storage device further includes a battery management circuit board, which is disposed in the accommodating cavity and located above the battery pack.

[0013] In some embodiments, a storage member is also included, which is at least partially movably connected to the front cover.

[0014] In some embodiments, the storage piece is formed with a storage space opening upward, and the storage space is located behind the energy storage device in the front-to-back direction; the front cover includes an upper cover, and the upper cover has an open position and a closed position. When the upper cover is in the open position, the storage space can be touched by the user.

[0015] In some embodiments, the storage space and the energy storage device are separated by a storage piece.

[0016] The benefit of the present application is that since the internal combustion engine at the front of the new manned lawn mowing equipment is replaced with a lithium battery, we consider setting the center of gravity of the battery pack in front of the front wheel axis and placing the power management board above the battery pack, so a large space will be left at the front. The reserved space is designed as a large storage system that can be used to carry some garden tools, crop fertilizers and other items. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a manned lawn mower according to an embodiment of the present application; Figure 2 yes Figure 1 A three-dimensional diagram of the travel assembly, frame and housing system of a manned lawn mower; Figure 3 yes Figure 1 The electrical schematic diagram of the manned lawn mower in; Figure 4 is a three-dimensional diagram of a storage device in a flipped state according to an embodiment of the present application; Figure 5 is a schematic diagram of taking out a storage item in another embodiment of the present application; Figure 6 yes Figure 5 A schematic diagram of a first storage item in ; Figure 7 yes Figure 5 A schematic diagram of a first storage member, a second storage member and a front cover member in FIG. Figure 8is a three-dimensional diagram of an energy storage device according to an embodiment of the present application; Fig. 9 is a perspective view of a tool attachment device according to an embodiment of the present application; Fig.10 is a perspective view of a tool attachment device according to another embodiment of the present application. DETAILED DESCRIPTION

[0018] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0019] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0020] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0021] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0022] In this application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, etc. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0023] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0025] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0026] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0027] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0028] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 The manned lawn mower 100 as a specific embodiment of the present application is shown, which is specifically a lawn mowing tractor. The manned lawn mower 100 can be operated by a user to ride or stand on it to mow lawns and other vegetation. In this specification, the directions of front, rear, left, right, up and down are described as Figure 1 Specifically, when a user is on the manned lawn mower 100 located on the ground, the direction the user is facing is defined as the front, the direction facing away is defined as the back, the direction on the left hand side is defined as the left, the direction on the right hand side is defined as the right, the direction close to the ground is defined as the bottom, and the direction away from the ground is defined as the top.

[0030] See also Figures 1 to 3 As shown, the manned lawn mower 100 includes: a cutting assembly 10, a frame 91, a seat 92, a housing system 20, a traveling assembly 93, an energy storage device 96, a lighting system 40 and an operating assembly 50. Among them, the frame 91 and the housing system 20 constitute the main body 100a of the manned lawn mower 100, and the main body 100a is used to install the cutting assembly 10, the seat 92, the energy storage device 96 and the lighting system 40, and the traveling assembly 93 is used to support the main body 100a. The manned lawn mower 100 provides energy for the cutting assembly 10, the traveling assembly 93 and the lighting system 40 through the power assembly. In this embodiment, the power assembly of the manned lawn mower 100 is the energy storage device 96, and the energy storage device 96 provides electrical energy for each component of the manned lawn mower 100, so that the manned lawn mower 100 can be used as an electric tool. Compared with the fuel-powered manned lawn mower 100 , the electric manned lawn mower 100 is more environmentally friendly and more energy-saving.

[0031] The cutting assembly 10 is used to output power to realize the functions of the manned lawn mower 100. The cutting assembly 10 serves as a power output component, and the main body 100a supports the power output component. The cutting assembly 10 includes: a blade 11, a mowing element 12, and a first motor 13. The mowing element 12 is used to cut vegetation when rotating at a high speed. For example, the mowing element 12 is a blade used to cut grass on the lawn. The blade 11 is surrounded by a mowing space 121 for accommodating at least part of the mowing element 12. That is, the mowing element 12 is at least partially accommodated in the blade 11, and the first motor 13 is used to drive the mowing element 12 to rotate. Figure 3As shown, the cutting assembly 10 is arranged below the frame 91. In some embodiments, the number of mowing elements 12 can be 2, the number of first motors 13 is 2, and accordingly, two first motors 13 drive the mowing elements 12 respectively. In some embodiments, the number of mowing elements 12 can be 3, the number of first motors 13 is 3, and accordingly, three first motors 13 drive the mowing elements 12 respectively. The mowing element 12 is located in a mowing space 121 formed by the blade disc 11. The mowing space 121 is open downward, so that the mowing element 12 can cut the vegetation below the mowing space 121. In some embodiments, the manned lawn mower 100 can also include a grass collecting system, that is, the user can selectively install the grass collecting system, and the grass collecting system is used to collect grass clippings cut by the cutting assembly 10. In some embodiments, the grass collecting system includes a grass collecting basket assembly, and the grass collecting basket assembly is detachably installed behind the seat 92. The seat 92 includes a seat cushion and a backrest, the seat cushion is used for the user to sit, and the backrest is used to support the user's back. Therefore, it can also be said that the grass basket assembly is installed behind the backrest.

[0032] In some embodiments, the cutting assembly 10 can also be removed from the manned lawn mower 100, and at this time, the manned lawn mower 100 can be connected to other working accessories, such as a snow shovel assembly. The snow shovel assembly includes a snow shovel and a snow shovel angle adjustment device, and the snow shovel assembly can be mounted on the frame 91. At this time, strictly speaking, the manned lawn mower 100 is no longer just a manned mowing device, but a manned working machine that can perform different tasks depending on the connected working accessories. The manned lawn mower 100 has at least one working accessory interface, such as a hook, thread, hole, groove, etc. Since the frame 91 has a strong load-bearing capacity, at least one working accessory interface can be formed on or fixed to the frame 91. Different working accessory interfaces are used to match different working accessories, and the same working accessory interface can also match different working accessories.

[0033] The frame 91 extends substantially in the front-to-back direction, and the cutting assembly 10, the housing system 20, the travel assembly 93, the energy storage device 96, the grass collection system, and the lighting system 40 are all mounted on the frame 91. The frame 91 is used to support the main machine 100a of the entire manned lawn mower 100. The travel assembly 93 is used to support the frame 91 so that the manned lawn mower 100 can walk on the ground. The travel assembly 93 includes a first travel assembly 931 and a second travel assembly 932 and a second motor 933 for driving the first travel assembly 931 or the second travel assembly 932. In this embodiment, the first travel assembly 931 is the front travel assembly, including two first travel wheels (front wheels), namely the left first travel wheel 931L and the right first travel wheel 931R. The second travel assembly 932 is the rear travel assembly, including two second travel wheels (rear wheels), namely the left second travel wheel 932L and the right second travel wheel 932R. Among them, the radius of the second travel wheel is greater than the radius of the first travel wheel.

[0034] The frame 91 includes: a longitudinal beam and a cross beam. In some embodiments, the frame 91 includes two longitudinal beams, namely a first longitudinal beam 911 and a second longitudinal beam 912. In some embodiments, the frame 91 also includes two cross beams, namely a first cross beam and a second cross beam. Specifically, the first longitudinal beam 911 is arranged on the left side of the seat 92, and the second longitudinal beam 912 is arranged on the right side of the seat 92. The first cross beam 913 is basically located at the front end of the manned lawn mower 100, and the second cross beam 914 is basically located at the rear end of the manned lawn mower 100. In this embodiment, the height of the frame 91 is relatively low, thereby lowering the center of gravity of the entire manned lawn mower 100, so that the manned lawn mower 100 can travel smoothly.

[0035] The lighting system 40 includes: a front lighting assembly, a left lighting assembly, and a right lighting assembly. In some embodiments, the lighting system 40 further includes: a rear lighting assembly. The front lighting assembly is arranged at the front side of the seat 92, the left lighting assembly is arranged at the left side of the seat 92, the right lighting assembly is arranged at the right side of the seat 92, and the rear lighting assembly is arranged at the rear side of the seat 92. In this way, the front lighting assembly can illuminate the area in front of the manned lawn mower 100, and the left lighting assembly and the right lighting assembly can serve as the clearance lights of the manned lawn mower 100, so that other people around can observe the outline of the manned lawn mower 100.

[0036] The housing system 20 includes: a left cover 21, a right cover 22 and a front cover 23. The front cover 23 is arranged at the front of the manned lawn mower 100 and is the front face of the manned lawn mower 100. The left cover 21 is arranged on the left side of the seat 92, and the right cover 22 is arranged on the right side of the seat 92. In some embodiments, the left cover 21 at least partially covers the left second travel wheel 932L, and the right cover 22 at least partially covers the right second travel wheel 932R. The left cover 21 and the right cover 22 can be two separately molded parts or one integrally molded part, that is, the left cover 21 and the right cover 22 are connected as a whole to form a cover, and this cover as a whole at least partially covers the second travel assembly 932. The present application does not limit the specific structure and material of the left cover 21 and the right cover 22.

[0037] See also Figure 1 As shown, in addition to accommodating the energy storage device 96, the front portion of the manned lawn mower 100 has a storage cavity formed by the front cover 23 with sufficient space to provide a certain storage function. In some embodiments, the front cover 23 can be a metal part, which can be beneficial for heat dissipation of the energy storage device 96 on the one hand, and can also increase the strength of the front housing on the other hand. Of course, the front cover 23 can also be made of plastic material to save costs, and the present application does not limit the specific structure and material of the front cover 23.

[0038] In some embodiments, the housing system 20 of the manned lawn mower 100 also includes a storage member 24, which is at least partially movably connected to the front cover 23. The storage member 24 is formed with at least one storage space 241 with an opening substantially facing upward, and the storage space 241 is located behind the energy storage device 96 in the front-to-back direction. It should be noted that the above-mentioned storage space 241 is not the same space as the accommodating cavity formed by the front cover for accommodating the energy storage device. The storage boxes of the relevant lawn mowers are all fixedly mounted on the vehicle body, which greatly reduces the flexibility of the user's use and is not conducive to cleaning the internal space. In the present application, a movably connected storage member 24 and the front cover 23 are provided, so that the user can more conveniently take out the items in the storage space. For example, when the user uses the storage space 241 to store fertilizers or crops, the fertilizers or crops can be taken out more conveniently by adjusting the angle of the storage member 24 or directly taking out the storage member 24. When the storage member is in the storage state, the storage member and the front cover can form a receiving cavity, and the receiving cavity is used to receive the energy storage device. Of course, an receiving cavity can also be independently provided in the front cover for the energy storage device.

[0039] In some embodiments, see Figure 4As shown, the storage component 24 is a flip storage box, one end of which is rotatably mounted to the front cover 23. The storage component 24 can be flipped relative to the front cover 23 to change the opening direction of the storage space 241. Specifically, the storage component 24 also includes a rotating shaft. Among them, the rotating shaft is connected to the front cover 23, and the storage component 24 can be flipped around the axis 242 of the rotating shaft within a preset angle range. The angle at which the above-mentioned storage component 24 flips around the axis 242 is less than or equal to 180 degrees. Of course, the rotating shaft can also be linked with the storage component 24, and the above-mentioned angle should be understood as the angle at which the storage component 24 flips relative to the front cover 23.

[0040] In other embodiments, see Figures 5 to 7 As shown, the front cover 23 forms a accommodating cavity 231, which is at least used to accommodate the energy storage device 96. At least part of the storage member 24a is arranged behind the energy storage device 96. Different from the above-mentioned embodiment, the storage member 24a is a pull-out storage box, and at least part of the storage member 24a can move relative to the front cover 23. Specifically, the storage member 24a includes a first storage member 241a and a second storage member 242a. Among them, the first storage member 241a can be separated from the front cover 23. The second storage member 242a is arranged to be fixedly connected or flip-connected to the front cover 23. The first storage member 241a has a handle 243a that is convenient for user operation. The user can easily pull the handle 243a to freely take or place the first storage member 241a. Of course, the above-mentioned handle 243a can be foldable, which can save space. In some embodiments, the handle 243a is not a handle in the true sense, and any position on the first storage piece 241a that the user can grasp can be regarded as a handle. Therefore, the form and position of the handle 243a are not limited in the present application. The first storage piece 241a forms a first storage space 244a, and the second storage piece 242a forms a second storage space 245a. Among them, the opening direction of the first storage space 244a is different from the opening direction of the second storage space 245a. The volume of the first storage space 244a is different from the volume of the second storage space 245a. After the user pulls out the first storage piece 241a, he can take or store items from the second storage space 245a. In this way, the user can store different items separately to improve the user experience.

[0041] The front cover 23 includes an upper cover, and the upper cover 232 has an open position and a closed position. When the upper cover 232 is in the open position, the user can access the storage space 241, or flip or take the storage 24. The storage space 241 can be used to store small tools, gloves, sun hats, and even clothes according to the needs of the user, which is convenient for the user and improves the comfort of mowing work. Specifically, the upper cover of the front cover 23 can be movably and rotatably connected to the front cover 23 by structures such as slide rails and hinges, which will not be described in detail here. The upper cover of the front cover 23 can be opened according to the configuration of the storage space, and the present application does not limit the specific shape and size of the upper cover.

[0042] In some embodiments, see Figure 8 As shown, the maximum length L1 of the storage space 241 formed by the storage piece 24 in the front-to-back direction is greater than or equal to 150 mm and less than or equal to 300 mm. The maximum length L1 of the storage space 241 formed by the storage piece 24 in the front-to-back direction is greater than or equal to 200 mm and less than or equal to 270 mm. In some embodiments, the maximum length L1 is 160 mm, 180 mm, 220 mm, 240 mm, 260 mm, 280 mm. It should be noted that when there is only one storage space 241 formed by the storage piece 24, the maximum length L1 of the storage space 241 in the front-to-back direction is determined as the size of the storage space 241. When there are multiple storage spaces 241 formed by the storage piece 24, the maximum length L1 of the storage space 241 in the front-to-back direction should be determined as the sum of all storage spaces.

[0043] In some embodiments, the storage space 241 is separated from the energy storage device 96 by the side wall of the storage unit 24. In this way, the items in the storage unit 24 will not contaminate the energy storage device 96. At the same time, the structure of the storage unit 24 itself forms a natural barrier to separate the two, making the space more compact while expanding the capacity of the storage space 241. In the present application, there is no restriction on the material of the storage unit 24. It can be plastic, metal, a mixture of plastic and metal, or other materials.

[0044] The energy storage device 96 is arranged at the front side of the seat 92, and is used to provide power to the cutting assembly 10, the walking assembly 93, the lighting system 40, etc., wherein the first motor 13, the second motor 933 and the lighting system 40 are all electric devices included in the manned lawn mower 100, and these electric devices can convert electric energy into other forms of energy. The energy storage device 96 is arranged at the front of the manned lawn mower 100 and is covered by the front cover 23. The front cover 23 forms a receiving cavity 231 (such as Figure 4 As shown), at least for accommodating the energy storage device 96. The energy storage device 96 is arranged at the front side of the seat 92 in the front-to-back direction and is located at the front part of the accommodating cavity 231.

[0045] In some embodiments, the energy storage device 96 includes at least one battery pack 961 for storing electrical energy. Among them, the battery pack 961 is composed of a plurality of battery cells connected in series and / or in parallel. The battery cell can be a cylindrical battery cell, and the diameter of the battery cell is greater than or equal to 3 cm, for example, the diameter of the battery cell is 3 cm, 3.5 cm or 4 cm, etc. The height of the battery cell is greater than or equal to 8 cm, for example, the height of the battery cell is 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm or 13.5 cm, etc. In one embodiment, the ratio of the length of the battery cell to the width of the battery pack 961 is greater than or equal to 0.7. In this embodiment, the battery cell can be a lithium iron phosphate battery. Of course, the energy storage device 96 can also take other forms, such as a hydrogen fuel cell or a ternary lithium battery.

[0046] In some embodiments, the weight of the battery pack 961 is greater than or equal to 9Kg, such as 9Kg, 10Kg or 15Kg. The nominal voltage of the battery pack 961 is about 56V, such as 54V or 58V. The capacity of the battery pack 961 is greater than or equal to 20Ah, such as 20Ah, 30Ah, 40Ah, 50Ah, etc. The ratio of the capacity to weight of the battery pack 961 is greater than or equal to 2Ah / Kg, such as 2Ah / Kg, 4Ah / Kg, 5Ah / Kg, etc. The average discharge current of the battery pack 961 is greater than or equal to 30A, such as 30A, 35A, 40A, etc. The energy of the battery pack 961 is greater than or equal to 2kW·h, such as 2kW·h, 3kW·h, 4kW·h, 5kW·h, etc. In one embodiment, the battery pack 961 is substantially in the shape of a rectangular parallelepiped, and the height of the battery pack 961 is approximately 330 mm, the length is approximately 320-330 mm, and the width is approximately 170-180 mm.

[0047] The energy storage device 96 also includes a battery management system (BMS). Specifically, the battery management system is implemented by a battery management circuit board 962. The battery management circuit board 962 is mainly used to manage the charging and discharging process of the battery pack 961 and communicate with the main control board of the manned lawn mower 100. Figure 8 As shown, the battery management circuit board 962 is placed in the accommodating cavity 231 and above the battery pack 961, close to the battery pack 961, and has a short wiring path, which can effectively save the front space of the whole machine. The reserved space is designed as a large storage system, which can be used to carry some garden tools, crop fertilizers and other items. At the same time, a vent is provided at the front of the front cover, so that when the manned lawn mower 100 moves forward, the battery management circuit board 962 is blown against the wind, and the heat dissipation effect is good.

[0048] In some embodiments, the energy storage device 96 is a built-in energy storage device that is non-detachably mounted on the manned lawn mower. The user can directly charge the energy storage device 96 through the charging port on the vehicle body without taking out the energy storage device 96 and charging it with an adapter charger. In this way, a complex connection structure is omitted, thereby saving internal space.

[0049] See also Figure 8 As shown, in the front-to-back direction, the center of gravity G of the energy storage device 96 is located in front of the line 101 connecting the center point of the left first running wheel 931L and the center point of the right first running wheel 931R. Figure 8 It is shown as a projection on the left and right directions of the connecting line 101. In some embodiments, in the front-to-back direction, the distance L2 from the center of gravity G of the energy storage device 96 to the connecting line 101 is greater than or equal to 0 and less than or equal to 200 mm. In some embodiments, in the front-to-back direction, the distance L2 from the center of gravity G of the energy storage device 96 to the connecting line 101 is greater than or equal to 50 mm and less than or equal to 130 mm. In some embodiments, in the front-to-back direction, the distance L2 from the center of gravity G of the energy storage device 96 to the connecting line 101 can also be 20 mm, 40 mm, 60 mm, 100 mm, 120 mm, 140 mm, 160 mm, 180 mm. In this way, the energy storage device 96 is placed in front, the center of gravity of the energy storage device 96 is moved forward, and a relatively ample storage space is reserved at the front of the manned lawn mower 100, which is convenient for users to store small tools, gloves, sun hats, and even clothes, etc., and improves the user's comfort during mowing. On the other hand, by moving the center of gravity of the energy storage device 96 forward, the climbing ability of the manned lawn mower can be improved, and it is more suitable for mowing or driving under conditions with a large slope range. In addition, by moving the center of gravity of the energy storage device 96 forward, the weight of the counterweight of the whole machine can be reduced, or even the use of the counterweight can be eliminated, so that the center of gravity of the whole machine has a better state and the weight of the whole machine is reduced.

[0050] In some embodiments, in the up-down direction, the distance H from the center of gravity of the energy storage device 96 to the walking plane 102 is greater than or equal to 380 mm and less than or equal to 520 mm. In some embodiments, in the up-down direction, the distance H from the center of gravity of the energy storage device 96 to the walking plane 102 is greater than or equal to 420 mm and less than or equal to 480 mm. In some embodiments, in the up-down direction, the distance H from the center of gravity of the energy storage device 96 to the walking plane 102 can also be 440 mm, 450 mm, 460 mm or 500 mm. The above-mentioned walking plane 102 can be understood as the ground plane supporting the walking wheels.

[0051] See also Figure 1As shown, the operating assembly 50 of the manned lawn mower 100 includes a control panel 52, a steering wheel assembly 56 and a pedal assembly 59. In some embodiments, the pedal assembly 59 includes an accelerator pedal and a brake pedal. The control panel 52 and the steering wheel assembly 56 are arranged between the seat 92 and the front cover 23. In this embodiment, the steering wheel assembly 56 includes a steering wheel 561, and the steering wheel 561 can be operated by the user to control the direction of travel of the manned lawn mower 100. The control panel 52 is connected to the front cover 23, and the control panel 52 includes a display screen and a plurality of operating members, so that the user can conveniently see the display status on the display screen while operating the plurality of operating members, which is more in line with the ergonomic design. The display screen is used to display the status information of the manned lawn mower 100. The plurality of operating members can be operated by the user to control the walking assembly and the cutting assembly, and the plurality of operating members can include switches, buttons or gears, etc. The plurality of operating members can be configured in different shapes and sizes, so that the user can operate different operating members without viewing.

[0052] Currently available riding lawn mowers, garden tractors, and the like allow for the use of mounted tools, either on the front or rear of the lawn maintenance vehicle. When using such tools, many known fastening methods include the use of threaded fasteners or require separate hand tools for attachment. This may require additional time and effort to attach the tool to the lawn maintenance vehicle. The aforementioned tools primarily include, but are not limited to, hand tools such as shovels, hammers, screwdrivers, ratchet kits, wrenches, and the like.

[0053] See also Figure 1 As shown, the manned lawn mower 100 also includes a tool attachment device 97. The tool attachment device 97 in the present application can be described as a "quick attachment device" because it can achieve the attachment of the tool without the use of fasteners, etc. Examples of manned lawn mowers 100 include, but are not limited to, stand-up lawn mowers, lawn tractors, or other multi-purpose vehicles, such as all-terrain vehicles. In addition, a trailer hook 97a connected to the frame 91 is also provided near the tool attachment device 97 of the manned lawn mower 100. When the manned lawn mower 100 fails or lacks power and cannot move normally, the user can use other equipment to connect to the trailer hook 97a to tow the manned lawn mower that cannot move normally back to the charging station or after-sales maintenance department. Of course, the above-mentioned trailer hook 97a can also have other uses, for example, the manned lawn mower 100 uses the trailer hook 97a to transport some other equipment.

[0054] See also Fig. 9As shown, the tool attachment device 97 is mounted to the frame 91 and arranged behind the seat 92. Of course, the tool attachment device 97 can also be installed in other positions of the manned lawn mower 100, such as the front side, the left side or the right side. It should be noted that the above-mentioned seat can also be understood as a support member. In other models, such as a stand-up lawn mower, the support member is a standing part for supporting the operator. In some embodiments, the tool attachment device 97 includes at least one attachment member 971, and at least one attachment member 971 allows the tool 973 to be inserted roughly in the up and down direction. In some embodiments, the attachment member 971 includes a tubular member, and the tubular member includes a receiving cavity 971a that can accommodate at least part of the tool 973, and the receiving cavity 971a extends roughly in the up and down direction. The attachment member 971 includes a hollow tubular member, and the tool 973 can fit the hollow area of ​​the tubular member to be limited in the tubular member. In some embodiments, the tool attachment device 97 includes at least two attachment members 971, and each attachment member 971 can independently adapt to the tool. In some embodiments, the number of the attachments 971 can be 3, 4 or even more. The shape of the attachment 971 can be a round tube or a square tube. In some embodiments, the attachment 971 is made of metal material to ensure that it will not deform when the tool is placed. In some embodiments, the tool 973 includes a rod-type tool, such as a shovel, a hammer, etc.

[0055] The tool attachment device 97 also includes a connector, and the connector 972 is fixedly mounted to the frame 91, or is integrally formed with the frame 91. In some embodiments, the connector 972 includes a limiter 9721 fixedly connected to the frame 91 and a fixing member 9722 extending in the left-right direction. The attachment 971 is mounted to the fixing member 9722. In some embodiments, the fixing member 9722 is detachably mounted to the limiter 9721, so that the user can flexibly choose to remove the fixing member and the attachment mounted thereon when the tool is not needed. Of course, the user can also adapt the appropriate accessory 971 according to the choice of the tool 973 that needs to be carried. Of course, the connector can also take other forms, such as Fig.10 As shown, the connecting member 972a includes an L-shaped rectangular tube 9721a. The rectangular tube 9721a is fixed to the frame 91, and the attachment 971 is fixed to the rectangular tube 9721a. In some embodiments, the connecting member 972a also includes a bottom plate 9722a, which is arranged at the bottom of the attachment 971 and is used to support the attachment 972a.

[0056] The tool attachment device 97 of the present application can provide a convenient, quick and inexpensive way to connect a tool to a manned lawn mower without the need for separate hand tools such as screwdrivers, ratchet kits, wrenches, etc. The described structure can also provide a relatively secure connection between the tool and the lawn maintenance vehicle compared to other attachment methods and structures.

[0057] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A manned lawn mower, comprising: Seats; a frame for supporting the seat; a cutting assembly mounted to the frame and including a mowing element for mowing grass; A travel assembly, mounted on the frame, comprising a left travel wheel and a right travel wheel; An energy storage device, arranged at the front side of the seat, for supplying power to the cutting assembly and the walking assembly; A front cover, disposed at the front of the manned lawn mower, the front cover forming a receiving cavity, at least for receiving the energy storage device; It is characterized in that In the front-rear direction, the center of gravity of the energy storage device is located in front of the line connecting the center points of the left running wheel and the right running wheel.

2. The manned lawn mower according to claim 1, characterized in that: The energy storage device is non-detachably mounted to the manned lawn mower.

3. The manned lawn mower according to claim 1, characterized in that: The energy storage device includes at least one battery pack, and the at least one battery pack includes a lithium iron phosphate battery cell.

4. The manned lawn mower according to claim 3, characterized in that: The total energy of the at least one battery pack is greater than or equal to 2 kW·h.

5. The manned lawn mower according to claim 1, characterized in that: In the up and down direction, the distance H from the center of gravity of the energy storage device to the walking plane is greater than or equal to 380 mm and less than or equal to 520 mm.

6. The manned lawn mower according to claim 1, characterized in that: In the front-to-back direction, a distance L2 from the center of gravity of the energy storage device to the connecting line is greater than or equal to 0 mm and less than or equal to 200 mm.

7. The manned lawn mower according to claim 1, characterized in that: The energy storage device is arranged at the front side of the seat in the front-rear direction and is located at the front part of the accommodating cavity.

8. The manned lawn mower according to claim 1, characterized in that: The energy storage device also includes a battery management circuit board, which is arranged in the accommodating cavity and located above the battery pack.

9. The manned lawn mower according to claim 1, characterized in that: Also included is a storage member that is at least partially movably connected to the front cover.

10. The manned lawn mower according to claim 9, characterized in that: The storage piece forms a storage space opening upward, and the storage space is located behind the energy storage device in the front-to-back direction; the front cover includes an upper cover, and the upper cover has an open position and a closed position. When the upper cover is in the open position, the storage space can be touched by the user.

11. The manned lawn mower according to claim 10, characterized in that: The storage space is separated from the energy storage device by the storage member.

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