Extended-range riding mower

Abstract

The utility model discloses a range-extended riding mower, which belongs to the technical field of gardening tools, solves the problem that the mower cannot meet the requirements of compact structure and lower gravity center of a seat simultaneously after a range extender is added in the prior art, and adopts the technical scheme that the range-extended riding mower mainly comprises a rack, the mowing assembly, the seat, the battery assembly and the range extender are arranged on the machine frame, the mowing assembly is arranged below the seat, the battery assembly and the range extender can supply power to the mowing assembly, the range extender can supply power to the battery assembly, the battery assembly and the range extender are arranged on the rear side of the seat, and the range extender is arranged on the rear side of the seat. The battery assembly comprises a battery bin and at least two battery packs arranged in the battery bin, and the at least two battery packs are arranged in the battery bin in an up-down stacked mode. The lawn mower seat is mainly used for enabling the structure of a lawn mower to be more compact and enabling the gravity center of the seat to be lower.

Description

Technical Field

[0001] The utility model relates to the technical field of garden tools, in particular to an extended-range riding lawn mower. Background Art

[0002] In order to improve the endurance, the prior art, such as the invention patent CN117769960A, discloses a range-extended riding lawn mower and a control method, including a frame, a controller, a walking component, a mowing component, a power supply component, a seat, an operating table and a generator. The mowing drive module, the walking drive module, the generator and the power supply component are all electrically connected to the power energy control module, the display module and the power energy control module are all electrically connected to the central processing module, the walking component and the mowing component are all arranged below the frame, the seat is arranged in the middle of the frame, the power supply component is arranged below the seat, the operating table is arranged on both sides of the seat, and the generator is arranged behind the seat. As long as the power of the power supply component is less than the set value, the generator will be started to supply power to the power supply component. However, after adding the generator, the range extender occupies a large space, resulting in a larger volume of the lawn mower. In order to make the structure of the lawn mower more compact, the power supply component is arranged below the seat, which causes the center of gravity of the seat to rise, affecting the safety of the whole machine (the whole machine is more prone to tilting) and driving experience. Utility Model Content

[0003] The purpose to be achieved by the utility model is to provide a range-extended riding lawn mower, which solves the problem in the prior art that after a range extender is added, the lawn mower cannot simultaneously meet the requirements of compact structure and low center of gravity of the seat, making the lawn mower structure more compact and the center of gravity of the seat lower.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a range-extended riding lawn mower, comprising a frame, and a mowing assembly, a seat, a battery assembly and a range extender arranged on the frame, the mowing assembly is arranged below the seat, the battery assembly and the range extender can both supply power to the mowing assembly, the range extender can supply power to the battery assembly, the battery assembly and the range extender are arranged on the rear side of the seat, the battery assembly comprises a battery compartment and at least two battery packs arranged in the battery compartment, and the at least two battery packs are stacked up and down in the battery compartment.

[0005] After adopting the above technical scheme, the utility model has the following advantages: first, the battery assembly and the range extender are arranged on the rear side of the seat, the center of gravity of the seat will be lower, the whole machine is not easy to tilt, the safety is better, and the user's driving experience is better; secondly, at least two battery packs are stacked up and down in the battery compartment, which improves the vertical space utilization of the lawn mower, meets the space requirements of multiple battery packs, and makes the lawn mower have a stronger endurance. It can also reduce the size of the battery assembly in the front and rear directions of the frame, thereby meeting the space requirements of the range extender, making the structure of the lawn mower more compact, and helping to reduce the volume of the lawn mower.

[0006] Furthermore, the battery compartment includes a mother compartment body and at least two sub-compartment bodies, the at least two sub-compartment bodies are stacked up and down in the mother compartment body and divide the mother compartment body into at least two layers, and the at least two battery packs are respectively arranged in the at least two sub-compartment bodies.

[0007] By adopting the aforementioned technical solution, the stacked design of the sub-bin body effectively utilizes the vertical space, allowing more battery packs to be installed within a limited overall volume, thereby making the structure of the battery bin more compact. Each sub-bin body serves as an independent module, which facilitates the installation, maintenance and replacement of the battery pack. If a battery pack fails, only the battery pack in the sub-bin body needs to be replaced separately without disassembling the entire battery system, thereby reducing maintenance costs and time. The layered design of the mother bin body and the sub-bin body can also enhance the stability and impact resistance of the overall structure, protecting the battery pack from external physical damage.

[0008] Furthermore, the sub-chamber body is provided with at least two independent battery placement cavities along the left and right directions, and one of the battery placement cavities is installed in each of the battery placement cavities.

[0009] By adopting the aforementioned technical solution, the battery packs are distributed laterally, and the sub-compartment body is provided with at least two independent battery placement cavities along the left and right directions. Without increasing the size of the battery compartment in the front and rear directions, more battery packs can be stored, effectively improving the endurance of the lawn mower. The battery packs are respectively arranged in independent battery placement cavities, which can effectively prevent friction and collision between batteries, reducing the risk of battery short circuit or other safety problems. The battery packs can also be taken out or replaced individually, which is convenient for maintenance and management of electricity.

[0010] Furthermore, the dimension of the battery placement cavity in the front-to-back direction is not greater than the dimension of the battery placement cavity in the left-to-right direction.

[0011] With the above technical solution, if the front-to-back dimension of the battery placement cavity is larger than the left-to-right dimension of the battery placement cavity, the front-to-back dimension of the battery compartment will increase.

[0012] Furthermore, the mother compartment body is provided with a first opening for the battery pack and the sub-compartment body to enter and exit, and a compartment cover for covering the first opening, and the sub-compartment body is provided with a second opening for the battery pack to enter and exit the battery placement cavity, the second opening of the sub-compartment body at the lower layer is covered by the sub-compartment body at the upper layer, and the second opening of the sub-compartment body at the uppermost layer is covered by the compartment cover.

[0013] By adopting the above-mentioned technical solution, the second opening of each layer of the sub-bin body can be covered by the sub-bin body of the upper layer, eliminating the need for a separate cover for the sub-bin body, thereby effectively reducing the height of the battery assembly and making the battery assembly more compact.

[0014] Furthermore, a buckle structure for fixing the battery pack and an escape hole for facilitating the hand to reach in and operate the buckle structure are provided on the inner wall on the same side of the sub-bin body. The inner wall of each layer of the sub-bin body provided with the buckle structure and the escape hole is located on different sides, and the battery pack is inserted into each layer of the sub-bin body in different directions.

[0015] By adopting the above technical solution, a buckle structure for fixing the battery pack is provided on the inner wall on the same side of the sub-bin body, which can ensure that the battery pack is fixed and stable in the bin body. The sub-bin body is provided with an avoidance opening that is convenient for the hand to reach in and operate the buckle structure, so that the user can easily insert or remove the battery pack. The buckle structure and the avoidance opening on each layer of sub-bin bodies are in opposite positions, and the battery pack is inserted into each layer of sub-bin bodies in different directions. This design can make the battery packs staggered and can arrange the battery packs more tightly in a limited space, making full use of every inch of space, increasing the loading quantity of battery packs, and forming a guide during assembly, reducing the possibility of incorrect installation.

[0016] Furthermore, the sub-bin body and the main bin body are detachably connected.

[0017] By adopting the above technical solution, since different sub-compartments are installed with different battery packs, and the sub-compartment bodies and the main compartment body are detachably connected, if one of the battery packs has a problem, the sub-compartment body can be disassembled more conveniently to take out the corresponding battery pack.

[0018] Furthermore, the sub-bin bodies at the bottom layer are detachably connected to the mother bin body, and the sub-bin bodies at the upper layer are detachably connected to the sub-bin bodies at the lower layer.

[0019] The above technical solution allows maintenance, inspection or upgrading to be performed step by step from the bottom layer upwards without disassembling the entire battery system at one time, thus reducing the burden on the operator.

[0020] Furthermore, the range extender and the battery assembly are arranged horizontally.

[0021] By adopting the above technical solution, the horizontal setting can make the center of gravity of the entire lawn mower lower, which is beneficial to improving the stability and controllability of the lawn mower and reducing the risk of tilting and rolling.

[0022] Furthermore, a grass collecting bag is provided on the frame, and the grass collecting bag is arranged on the rear side of the battery assembly and is connected to the mowing assembly.

[0023] By adopting the above technical solution, since the size of the battery assembly in the front-to-rear direction of the frame is smaller, the grass collecting bag can be closer to the mowing assembly, shortening the distance for the grass from the mowing assembly to be transported to the grass collecting bag, so that the grass can be quickly transported to the grass collecting bag, effectively improving the grass collecting performance. The grass collecting bag can be closer to the mowing assembly and the length of the lawn mower can be shortened, making the overall structure of the lawn mower more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a schematic structural diagram of the extended-range riding lawn mower of the utility model without a grass collecting bag;

[0026] Figure 2 It is a partial structural schematic diagram of the range-extended riding lawn mower of the utility model;

[0027] Figure 3 It is an exploded view of a part of the structure of the extended-range riding lawn mower of the utility model;

[0028] Figure 4 An exploded view of the battery assembly of the utility model;

[0029] Figure 5 This is a schematic structural diagram of one of the sub-bin bodies of the utility model;

[0030] Figure 6 It is a structural schematic diagram of another sub-bin body of the utility model;

[0031] Figure 7 This is a schematic structural diagram of the mother compartment body of the utility model;

[0032] Figure 8 It is a schematic structural diagram of the extended-range riding lawn mower of the utility model equipped with a grass collecting bag;

[0033] In the figure, 10, frame; 20, mowing component; 30, grass collecting bag; 31, conveying pipe; 40, seat; 50, battery compartment; 501, main compartment body; 502, sub-compartment body; 503, compartment cover; 504, first opening; 505, second opening; 506, battery placement cavity; 507, buckle structure; 508, avoidance; 51, battery pack; 60, range extender; 70, protective cover. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0036] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0037] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0038] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0039] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0040] like Figures 1 to 7 As shown, the utility model provides a range-extended riding lawn mower, including a frame 10, and a mowing assembly 20, a seat 40, a battery assembly and a range extender 60 arranged on the frame 10, the mowing assembly 20 is arranged below the seat 40, the range extender 60 can supply power to the battery assembly, and both the battery assembly and the range extender 60 can supply power to the mowing assembly 20, the battery assembly and the range extender 60 are arranged on the rear side of the seat 40, the battery assembly includes a battery compartment 50 and at least two battery packs 51 arranged in the battery compartment 50, and the at least two battery packs 51 are stacked up and down in the battery compartment 50.

[0041] In this embodiment, four battery packs 51 are provided, which effectively improves the battery life of the lawn mower, and the four battery packs 51 are stacked up and down in the battery compartment 50, which improves the vertical space utilization of the lawn mower and meets the space requirements of multiple battery packs 51, so that the battery life of the lawn mower is stronger, and the size of the battery assembly in the front and rear directions of the frame can also be reduced, thereby meeting the space requirements of the range extender 60, making the structure of the lawn mower more compact, which is conducive to reducing the size of the lawn mower, and the battery assembly and the range extender 60 are arranged on the rear side of the seat 40, the center of gravity of the seat 40 will be lower, the whole machine is not easy to tilt, the safety is better, and the user's driving experience is better.

[0042] It is understandable that the number of battery packs 51 may be three, five, six or other suitable numbers. The more battery packs 51 there are, the longer the battery life of the lawn mower will be.

[0043] It should be noted that when the lawn mower is in use, when the actual working load is low, when the range extender 60 is running, in addition to meeting the power supply requirements of the lawn mower component, all the extra power of the range extender 60 is transferred to the power of the battery component, so that the energy is recycled and reused, which is more energy-saving; when the actual working load is high, the power of the range extender 60 cannot meet the actual working load requirements. At this time, the battery component assists in discharge to meet the actual load conditions, thereby improving the endurance of the lawn mower. Due to the large number of battery packs 51, in order to make the battery compartment 50 more compact, the battery compartment 50 includes a mother compartment body 501 and at least two sub-compartment bodies 502, at least two sub-compartment bodies 502 are stacked up and down in the mother compartment body 501 and the mother compartment body 501 is divided into at least two layers, and at least two battery packs 51 are respectively arranged in at least two sub-compartment bodies 502. The stacked design of the sub-bin body 502 effectively utilizes the vertical space, allowing more battery packs 51 to be installed within a limited overall volume, thereby making the structure of the battery bin 50 more compact. Each sub-bin body 502 serves as an independent module, which facilitates the installation, maintenance and replacement of the battery pack 51. If a battery pack 51 fails, it is only necessary to replace the battery pack 51 in the sub-bin body 502 without disassembling the entire battery system, thereby reducing maintenance costs and time. The layered design of the mother bin body 501 and the sub-bin body 502 can also enhance the stability and impact resistance of the overall structure, protecting the battery pack 51 from external physical damage.

[0044] The range extender 60 includes an engine and a generator connected to the engine. The generator is electrically connected to the battery assembly. When the engine is moving, the engine drives the mowing assembly and the generator at the same time. The generator converts the mechanical energy generated by the engine into electrical energy, which is stored in the battery assembly.

[0045] Preferably, in this embodiment, the battery compartment 50 includes a main compartment body 501 and two sub-compartment bodies 502. The two sub-compartment bodies 502 are stacked up and down in the main compartment body 501 and divide the main compartment body 501 into two layers, and the two battery packs 51 are respectively arranged in the two sub-compartment bodies 502, which can meet the installation requirements of multiple battery packs 51 and avoid the height of the battery compartment 50 being too high, thereby effectively lowering the center of gravity of the lawn mower and making the lawn mower run more smoothly.

[0046] It can be understood that the battery compartment 50 can include three, four, or five sub-compartment bodies 502, dividing the main compartment body 501 into three, four, or five layers above and below, so as to accommodate more battery packs 51.

[0047] In order to reduce the vertical height of the battery compartment 50, in this embodiment, the mother compartment body 501 is provided with a first opening 504 for the battery pack 51 and the sub-compartment body 502 to enter and exit, and a compartment cover 503 for covering the first opening 504, and the sub-compartment body 502 is provided with a second opening 505 for the battery pack 51 to enter and exit the battery placement cavity 506, the second opening 505 of the sub-compartment body 502 of the lower layer is covered by the sub-compartment body 502 of the upper layer, and the second opening 505 of the sub-compartment body 502 of the uppermost layer is covered by the compartment cover 503. The second opening 505 of each layer of the sub-compartment body 502 can be covered by the sub-compartment body 502 of the upper layer, eliminating the need for a separate cover for the sub-compartment body 502, thereby effectively reducing the height of the battery assembly and making the battery assembly more compact.

[0048] Among them, the sub-bin body 502 and the mother bin body 501 of the bottom layer are detachably connected, and the sub-bin body 502 of the upper layer is detachably connected to the sub-bin body 502 of the lower layer, allowing maintenance, inspection or upgrading from the bottom layer upward step by step. If one of the battery packs 51 has a problem, the sub-bin body 502 can be disassembled more conveniently to take out the corresponding battery pack 51, without the need to disassemble the entire battery system at one time, thereby reducing the burden on the operator.

[0049] In order to further improve the battery life of the lawn mower, the sub-compartment body 502 is provided with at least two independent battery placement chambers 506 along the left and right directions, and a battery pack 51 is installed in each battery placement chamber 506. Without increasing the size of the battery compartment 50 in the front-to-back direction, more battery packs 51 can be stored, effectively improving the battery life of the lawn mower. Moreover, the battery packs 51 are respectively arranged in independent battery placement chambers 506, which can effectively prevent friction and collision between batteries, reduce the risk of battery short circuit or other safety problems, and can also be taken out or replaced separately, which is convenient for maintenance and management of electricity.

[0050] Preferably, in this embodiment, each sub-compartment body 502 is provided with two independent battery placement cavities 506 along the left-right direction, and the four battery packs 51 are separately located in the two battery placement cavities 506 of the upper and lower sub-compartment bodies 502. This can also prevent the sub-compartment body 502 from having too many battery placement cavities 506, resulting in the left-right dimension of the entire battery compartment 50 being too large and exceeding the size of the frame 10.

[0051] It is understandable that the sub-bin bodies 502 may also be provided with three, four, five or other suitable numbers.

[0052] In the prior art, the front-to-back dimension of the battery placement cavity 506 is usually larger than the left-to-right dimension of the battery placement cavity 506, which will increase the front-to-back dimension of the battery compartment 50. Therefore, the front-to-back dimension of the battery placement cavity 506 is not larger than the left-to-right dimension of the battery placement cavity 506, so that the thinner side of the battery pack 51 is installed in the battery placement cavity 506 along the front-to-back direction, further reducing the overall front-to-back dimension of the battery compartment 50.

[0053] To facilitate installation and removal of the battery pack 51, a buckle structure 507 for fixing the battery pack 51 is provided on the inner wall on the same side of the sub-bin body 502, which can ensure that the battery pack 51 is fixed stably in the bin body. The sub-bin body 502 is provided with an avoidance opening 508 for facilitating the hand to reach in and operate the buckle structure 507, so that the user can easily insert or remove the battery pack 51. The inner walls of each layer of the sub-bin body 502 with the buckle structure 507 and the avoidance opening 508 are located on different sides, and the battery pack 51 is inserted into each layer of the sub-bin body 502 in different directions. This design can make the battery packs 51 staggered and can arrange the battery packs 51 more closely in a limited space, making full use of every inch of space and increasing the loading quantity of the battery packs 51. The battery pack 51 is inserted into each layer of the sub-bin body 502 in different directions, which can also form a guide during assembly, reducing the possibility of incorrect installation.

[0054] In order to make the use of the lawn mower safer, the range extender 60 and the battery assembly are arranged horizontally. The horizontal arrangement can further lower the center of gravity of the entire lawn mower, which is conducive to further improving the stability and controllability of the lawn mower and reducing the risk of rollover and overturning.

[0055] like Figure 8 As shown, the mower can also be equipped with an optional mowing bag 30. The mowing bag 30 is arranged on the rear side of the battery assembly. The mowing bag 30 is connected to the mowing assembly through a conveying pipe 31. Since the battery assembly is relatively small in the front-to-rear direction of the frame 10, the mowing bag 30 can be closer to the mowing assembly 20, shortening the distance for the grass from the mowing assembly 20 to be conveyed to the mowing bag 30, so that the grass can be quickly conveyed to the mowing bag 30, effectively improving the grass collecting performance. The grass collecting bag 30 can be closer to the mowing assembly 20, which can also shorten the length of the mower and make the overall structure of the mower more compact.

[0056] In order to protect the range extender 60 , the frame 10 is further provided with a protective cover 70 which covers the range extender 60 . The protective cover 70 can protect against rain and isolate noise.

[0057] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. An extended-range riding lawn mower, comprising a frame (10), and a mowing assembly (20), a seat (40), a battery assembly and a range extender (60) arranged on the frame (10), wherein the mowing assembly (20) is arranged below the seat (40), the battery assembly and the range extender (60) can both supply power to the mowing assembly (20), and the range extender (60) can supply power to the battery assembly, wherein: The battery assembly and the range extender (60) are arranged on the rear side of the seat (40), the battery assembly comprising a battery compartment (50) and at least two battery packs (51) arranged in the battery compartment (50), and the at least two battery packs (51) are arranged in an upper and lower stack in the battery compartment (50).

2. The extended-range riding lawn mower according to claim 1, characterized in that: The battery compartment (50) comprises a main compartment body (501) and at least two sub-compartment bodies (502), wherein the at least two sub-compartment bodies (502) are stacked up and down in the main compartment body (501) and divide the main compartment body (501) into at least two upper and lower layers, and the at least two battery packs (51) are respectively arranged in the at least two sub-compartment bodies (502).

3. The extended-range riding lawn mower according to claim 2, characterized in that: The sub-chamber body (502) is provided with at least two independent battery placement cavities (506) along the left-right direction, and one of the battery placement cavities (506) is installed in each of the battery placement cavities (506).

4. The extended-range riding lawn mower according to claim 3, characterized in that: The dimension of the battery placement cavity (506) in the front-to-back direction is not greater than the dimension of the battery placement cavity (506) in the left-to-right direction.

5. The extended-range riding lawn mower according to claim 3, characterized in that: The mother compartment body (501) is provided with a first opening (504) for the battery pack (51) and the sub-compartment body (502) to enter and exit, and a compartment cover (503) for covering the first opening (504); the sub-compartment body (502) is provided with a second opening (505) for the battery pack (51) to enter and exit the battery placement cavity (506); the second opening (505) of the sub-compartment body (502) at the lower layer is covered by the sub-compartment body (502) at the upper layer, and the second opening (505) of the sub-compartment body (502) at the uppermost layer is covered by the compartment cover (503).

6. The extended-range riding lawn mower according to claim 2, characterized in that: A buckle structure (507) for fixing the battery pack (51) and an escape opening (508) for facilitating the insertion of a hand to operate the buckle structure (507) are provided on the inner wall on the same side of the sub-bin body (502); the inner wall on which the buckle structure (507) and the escape opening (508) are provided on each layer of the sub-bin body (502) is located on different sides, and the battery pack (51) is inserted into each layer of the sub-bin body (502) in different directions.

7. The extended-range riding lawn mower according to claim 2, characterized in that: The sub-bin body (502) and the main bin body (501) are detachably connected.

8. The extended-range riding lawn mower according to claim 7, characterized in that: The sub-bin body (502) of the bottom layer is detachably connected to the main bin body (501), and the sub-bin body (502) of the upper layer is detachably connected to the sub-bin body (502) of the lower layer.

9. The extended-range riding lawn mower according to claim 1, characterized in that: The range extender (60) and the battery assembly are arranged horizontally.

10. The extended-range riding lawn mower according to claim 1, characterized in that: The frame (10) is also provided with a grass collecting bag (30), which is arranged on the rear side of the battery assembly and is connected to the mowing assembly (20).

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