Multifunctional vehicle, zero-steering multifunctional vehicle and walking assembly

Abstract

The utility model relates to a multifunctional vehicle, a zero steering multifunctional vehicle and a walking assembly, the multifunctional vehicle comprises a vehicle frame, an operation assembly and the walking assembly, and the operation assembly is connected to the vehicle frame and used for executing outdoor operation; the walking assembly comprises a driving wheel, a traveling motor and a gear box; the driving motor and the gear box are mounted on the frame, and the driving wheel is mounted on the gear box; the driving motor is configured to output driving force to the driving wheels to drive the multifunctional vehicle to walk, and the gearbox is used for transmitting the driving force of the driving motor to the driving wheels; the gear box is formed by two gear half boxes in a matched mode, and a sealing piece containing part is formed in the matched face, matched with the other gear half box, of one gear half box. According to the utility model, the sealing element accommodating part is arranged on one of the gear half boxes, so that the control difficulty of filling sealant into the gear half boxes is simplified, and a large amount of sealant is prevented from being extruded into the gear box during assembly, namely, the sealant is prevented from polluting lubricating oil.

Description

[Technical field]

[0001] The utility model relates to the technical field of garden tools, in particular to a multifunctional vehicle, a zero-turn multifunctional vehicle and a traveling component. [Background Technology]

[0002] Among garden tools, multi-purpose vehicles generally refer to vehicles used for gardening operations, on which are provided operating components for garden maintenance operations. In order to ensure the smooth travel of the multi-purpose vehicle, a gearbox structure for power transmission is generally required, and a lubricant is provided inside the gearbox. The gearbox is generally composed of two components. In the prior art, a seal is generally provided at the joint of the two components. However, due to the lack of a limit on the seal, the seal may be displaced when the two components are assembled, resulting in a poor sealing effect and affecting the sealing effect of the gearbox.

[0003] In view of this, it is indeed necessary to provide a multi-functional vehicle, a zero-turn multi-functional vehicle and a travel assembly to overcome the defects of the prior art. [Contents of the utility model]

[0004] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a multi-purpose vehicle, a zero-turn multi-purpose vehicle and a travel assembly that can solve the problem of lubricant leakage that may occur in the gear box.

[0005] The technical solution adopted by the utility model to solve the existing technical problems is:

[0006] A walking assembly, applied to a multi-purpose vehicle, comprising:

[0007] A driving wheel configured to contact the ground and be driven to move the multi-purpose vehicle;

[0008] A driving motor configured to output driving force to a driving wheel;

[0009] The gear box is arranged between the driving wheel and the travel motor and is used to transmit the driving force of the travel motor to the driving wheel;

[0010] The gear box is formed by at least two gear half boxes, wherein the mating surfaces between one of the gear half boxes and the other gear half box are of a non-closed shape, and a seal accommodating portion is provided at the mating surface of one of the gear half boxes, wherein a seal that can be deformed by being squeezed is arranged in the seal accommodating portion to avoid leakage at the connection between the two gear half boxes after mating.

[0011] A further improvement is that the mating surfaces of at least two of the gear half-boxes are matched to form an axial hole connecting the inside and outside of the gear box, and the seal accommodating portion is configured along the contour of the mating surface of the gear half-box and is composed of a plurality of accommodating sections, and the number of the accommodating sections is equal to the number of axial holes.

[0012] A further improvement is as follows: a transmission shaft is arranged in the shaft hole, and a sealing ring is provided together with the transmission shaft and the gear half box.

[0013] A further improvement is that the sealing ring is at least partially closer to the interior of the gearbox in the axial direction of the corresponding transmission shaft relative to the end of the sealing element accommodating portion.

[0014] A further improvement is as follows: the seal accommodating portion is a groove body opened on the matching surface, the depth of the seal accommodating portion is 0.1 mm to 5 mm, and the width of the seal accommodating portion is 0.1 mm to 5 mm.

[0015] A further improved solution is: the depth of the sealing member accommodating portion is 1 mm, and the width of the sealing member accommodating portion is 1 mm.

[0016] A further improvement is that a leaking hole penetrating the side wall of the gear half case is provided on the mating surface of the gear half case, the leaking hole is not connected to the internal space of the gear half case, and the sealing member accommodating portion is located between the leaking hole and the internal space of the gear half case.

[0017] A further improvement is that the sealing member is a sealant, which is filled into the sealing member accommodating portion before the two gear half-boxes cooperate with each other to form the gear box, and the filled sealant is slightly higher than the mating surface.

[0018] The utility model also discloses a zero-turn multifunctional vehicle, comprising:

[0019] Frame;

[0020] A user platform, configured on the frame and used to carry a user;

[0021] An operating component, which is configured on the vehicle frame and is used to perform outdoor operations;

[0022] A travel assembly, including a left travel assembly and a right travel assembly, configured to enable the zero-turn vehicle to travel;

[0023] A battery pack is arranged on the frame and is used to supply power to the working components and the traveling components;

[0024] A control mechanism, configured to be controlled by a user and send a travel signal to the walking mechanism;

[0025] The left walking component and the right walking component include:

[0026] a drive wheel configured to contact the ground and be driven to move the zero-turn multi-purpose vehicle;

[0027] A driving motor configured to output a driving force to a driving wheel;

[0028] The gear box is arranged between the driving wheel and the travel motor and is used to transmit the driving force of the travel motor to the driving wheel;

[0029] The gear box is formed by at least two gear half boxes, wherein the mating surfaces between one of the gear half boxes and the other gear half box are of a non-closed shape, and a seal accommodating portion is provided at the mating surface of one of the gear half boxes, wherein a seal that can be deformed by being squeezed is arranged in the seal accommodating portion to avoid leakage at the connection between the two gear half boxes after mating.

[0030] The utility model also discloses a multifunctional vehicle, comprising:

[0031] Frame;

[0032] An operating component, which is configured on the vehicle frame and is used to perform outdoor operations;

[0033] Walking components, including:

[0034] A driving wheel configured to contact the ground and be driven to move the multi-purpose vehicle;

[0035] A driving motor configured to output a driving force to a driving wheel;

[0036] The gear box is arranged between the driving wheel and the travel motor and is used to transmit the driving force of the travel motor to the driving wheel;

[0037] The gear box is formed by at least two gear half boxes, wherein the mating surfaces between one of the gear half boxes and the other gear half box are of a non-closed shape, and a seal accommodating portion is provided at the mating surface of one of the gear half boxes, wherein a seal that can be deformed by being squeezed is arranged in the seal accommodating portion to avoid leakage at the connection between the two gear half boxes after mating.

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] In the utility model, a seal accommodating portion is provided on one of the gear half-boxes, and before the two gear half-boxes cooperate to form the entire gear box, a sealant slightly higher than the mating surface is added into the seal accommodating portion, and then the two gear half-boxes are assembled together; when the two gear half-boxes are assembled, the other gear half-box squeezes the sealant in the seal accommodating portion so that the sealant can fill the gap between the two gear half-boxes to achieve effective sealing; at the same time, because the sealant accommodating portion is provided in the utility model, the staff can accurately add the sealant into the seal accommodating portion, and the sealant filling position is easier to control; when adding the sealant, it is also easier to accurately control the amount of sealant, and the sealant only needs to be added to a level slightly higher than the seal accommodating portion.

[0040] In summary: in the utility model, by providing a seal accommodating portion on one of the gear half-boxes, the difficulty of controlling the filling of sealant into the gear half-box is simplified, and a large amount of sealant is prevented from being squeezed into the gear box during assembly, that is, the sealant is prevented from contaminating the lubricating oil. [Drawings]

[0041] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0042] Figure 1 It is a schematic diagram of the partial structure of the gear box after assembly in the prior art;

[0043] Figure 2 It is a three-dimensional view of the lawn mower in the utility model;

[0044] Figure 3 It is a structural schematic diagram of the gear box in the utility model;

[0045] Figure 4 It is a structural schematic diagram of the first gear half box part in the utility model;

[0046] Figure 5 It is a schematic diagram of the planar structure of the first gear half box part in the utility model;

[0047] Figure 6 A schematic cross-sectional view of the sealing member accommodating portion of the present invention, wherein a, b, and c are schematic structural views of three implementation modes respectively;

[0048] Figure 7 A schematic diagram of the partial state of an embodiment of the utility model in which the overflow groove is configured before and after the two gear half boxes are matched.

[0049] Meaning of the reference numerals in the figures:

[0050] 1. Frame; 2. Cutting platform; 3. Seat; 4. Driving wheel; 5. Gearbox; 51. First gear half box; 52. Second gear half box; 53. Sealing component accommodating portion; 54. Output shaft; 55. Intermediate shaft; 56. Input shaft; 57. Leakage hole; 58. Reinforcing rib; 59. Glue overflow groove; 510. Sealing ring. [Specific implementation method]

[0051] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back" and the like indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0052] Unless otherwise specified, the terms "disposed", "connected" and "connected" in this utility model should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. "Fixed connection" in this utility model should also be understood in a broad sense as integral molding or welding or connection through other fasteners.

[0053] See also Figure 2 , shown is a multifunctional vehicle disclosed in the utility model, including a frame 1, an operating component and a traveling component, the operating component is connected to the frame and is used to perform outdoor operations; the figure shows that the operating component of this embodiment is a cutting table 2 connected to the frame 1, and a mowing motor and a blade are arranged in the cutting table 2. When mowing, the mowing motor drives the blade to rotate to achieve mowing. In other embodiments, the operating component can select components such as snow sweeping, snow blowing, snow shoveling, flushing, buckets, or components for grabbing and carrying goods. Those skilled in the art should be able to adaptably replace the operating components in this embodiment with various functional components without creative work, and the above should all be included in the protection scope of this embodiment.

[0054] The travel assembly in this embodiment includes: a driving wheel 4, a travel motor (not shown in the figure), and a gear box 5; the travel motor and the gear box 5 are installed on the frame 1, and the drive wheel 4 is installed on the gear box 5; the travel motor is configured to output a driving force to the drive wheel 4 to drive the multi-functional vehicle to travel, and the gear box 5 is configured between the drive wheel 4 and the travel motor, and is used to transmit the driving force of the travel motor to the drive wheel 4; the gear box 5 can be configured as a reducer with a gear structure, which has a certain reduction ratio, and reduces the speed of the motor output and transmits it to the drive wheel 4. At the same time, it also increases the torque of the drive wheel 4, so that the travel speed of the lawn mower is more stable; in addition, since the gear box 5 is configured between the travel motor and the drive wheel 4, and the two are connected by a transmission structure such as a gear, the travel motor and the drive wheel 4 are indirectly connected. This indirect connection method liberates the positional relationship of the direct connection between the travel motor and the drive wheel 4, that is, technicians in this field can adjust the position of the travel motor according to the actual space and center of gravity requirements, and increase the feasibility of the spatial structure arrangement method.

[0055] It is particularly noted that the aforementioned gearbox 5 is arranged between the driving wheel 4 and the traveling motor, which is not limited to the spatial position of the gearbox 5 being arranged between the driving wheel 4 and the traveling motor. Instead, it should be understood that the gearbox 5 is located between the driving wheel 4 and the traveling motor in the power transmission path, that is, the power output by the traveling motor is transmitted to the driving wheel 4 via the gearbox 5.

[0056] The gear box 5 in this embodiment is formed by two gear half boxes. Figure 3The first gear half box 51 and the second gear half box 52; one of the gear half boxes and the other gear half box cooperate with each other on the mating surface with a seal accommodating portion 53, refer to the attached Figure 3 In the figure, the first gear half-box 51 is provided with a seal accommodating portion 53, and the surface of the seal accommodating portion 53 is used to cooperate with the second gear half-box 52. Before the two gear half-boxes are assembled, a seal that can be deformed by extrusion is arranged in the seal accommodating portion 53 to avoid leakage at the connection between the two gear half-boxes. Specifically, when the two gear half-boxes cooperate with each other, the seal is squeezed to deform and completely fill the small gap between the two gear half-boxes, thereby avoiding leakage at the connection.

[0057] Reference Figure 4 The mating surface of the gear half-box is provided with an axial hole connecting the inside and outside of the gear box 5. The seal accommodating portion 53 is arranged along the contour of the mating surface of the gear half-box and is composed of a plurality of accommodating sections. The number of the accommodating sections is equal to the number of the axial holes. As shown in the figure, the gear box 5 in this embodiment is provided with three axial holes, and the three axial holes are respectively provided with different transmission shafts: an input shaft 56, an intermediate shaft 55 and an output shaft 54. One ends of the input shaft 56, the intermediate shaft 55 and the output shaft 54 ​​are extended to the outside of the gear box 5 through the corresponding axial holes. The input shaft 56 is connected to the travel motor (not shown in the figure), and the portion of the intermediate shaft 55 located outside the gear box 5 is provided with a brake disc, and the output shaft 54 ​​is connected to the drive wheel 4.

[0058] As described above: the seal accommodating portion 53 is disconnected at the shaft hole on the mating surface, that is, the mating surface of the gear half-box is provided with the seal accommodating portion 53 except the shaft hole position, which can largely prevent the mating surface of the two gear half-boxes from oil leakage. In other embodiments, each accommodating section can also be divided into several small sections, but the spacing between each small section should be small to avoid leakage at the gap between each small section; at this time, because each small section jointly realizes the sealing effect of the accommodating section, the combination of multiple small sections should be regarded as an accommodating section, that is, it should not be understood as exceeding the protection scope of this application.

[0059] Furthermore, in addition to the above-mentioned mating surfaces, the inside and outside of the gear box 5 may also be connected through the shaft hole, so a sealing ring 510 is provided on the transmission shaft and the two gear half boxes; the sealing ring 510 in this embodiment uses a rotating shaft lip sealing ring, which has good rotating sealing performance, avoids the leakage of lubricating oil through the shaft hole, and cooperates with the sealant in the seal accommodating portion 53 to achieve better sealing performance of the gear box 5.

[0060] Furthermore, the sealing ring 510 is at least partially closer to the inside of the gear box 5 in the axial direction of the corresponding transmission shaft relative to the end of the sealing member receiving portion, as shown in FIG. Figure 4 , Attachment Figure 5It can be seen that the seal accommodating portions 53 on both sides of the output shaft 54 ​​extend along the axial direction of the output shaft 54 ​​to near the middle of the sealing ring 510, the seal accommodating portions 53 on both sides of the intermediate shaft 55 completely extend along the axial direction of the intermediate shaft 55 to the outside of the sealing ring 510, and the seal accommodating portions 53 on both sides of the input shaft 56 completely extend along the axial direction of the input shaft 56 to the outside of the sealing ring.

[0061] In this embodiment, the seal accommodating portion 53 is a groove body opened on the mating surface, and the seal accommodating portion 53 has a depth of 0.1 mm to 5 mm and a width of 0.1 mm to 5 mm; preferably, the seal accommodating portion 53 has a depth of 0.5 mm to 2 mm and a width of 0.5 mm to 2 mm. Further preferably, the seal accommodating portion 53 has a depth of 1 mm and a width of 1 mm. In the current application environment of lawn mowers, the depth of the seal accommodating portion 53 is relatively more suitable.

[0062] It is further explained that the cross section of the sealing member accommodating portion 53 is a rectangular, trapezoidal, semicircular or other shapes. Figure 6 , the three figures a, b, and c in the figure correspond to rectangle, trapezoid, and semicircle respectively. Since the gear half-box is usually made by die-casting, in order to facilitate demoulding, the trapezoidal or semicircular cross-sectional shapes are usually more commonly selected. In other embodiments, the cross-section of the seal accommodating portion 53 may also be V-shaped, fan-shaped, etc. At the same time, because the gear half-box is made by die-casting, the corners of its seal accommodating portion 53 are generally set as rounded corners, which should not be understood as breaking the protection range of the above shapes. It is additionally noted that the depth of the seal accommodating portion 53 is the deepest depth, and its width is the width dimension on the mating surface of the gear half-box.

[0063] Reference Figure 3 In order to make the structure of the gear half-box more solid, reinforcing ribs 58 are generally arranged on its outer wall. However, the existence of the reinforcing ribs 58 makes the shape of the outer wall of the gear half-box relatively complicated, resulting in the presence of grooves on its outer wall that may contain rainwater. Therefore, a leakage hole 57 penetrating the side wall of the gear half-box is generally arranged at the corresponding position. One side of the leakage hole 57 is located on the mating surface of the gear half-box, and the other side is located on the outer wall of the gear half-box. The leakage holes 57 of the two gear half-boxes are opposite to each other at the mating surface, and the leakage holes 57 are not connected to the internal space of the gear half-box; so that the water outside the upper gear half-box can leak out to the lower part of the lower gear half-box through the leakage hole 57; it is particularly noted that the seal accommodating portion 53 is located between the leakage hole 57 and the internal space of the gear half-box, that is, the oil inside the gear box 5 can only leak to the outside through the leakage hole 57 after passing the position of the seal accommodating portion 53, thereby ensuring again that the gear box 5 has good sealing performance.

[0064] Again, refer to the attached Figure 3A groove is also provided at the position indicated by reference numeral 57 in the accompanying drawings. Such groove is located on the mating surface of the gear half-box and its main function is to make the wall thickness of the gear half-box uniform.

[0065] The seal in this embodiment uses sealant, and the sealant is injected into the seal accommodating portion 53 before the two gear half-boxes are matched. When filling, it should be ensured that the filled sealant completely fills the seal accommodating portion 53 and is slightly higher than the matching surface. Then the two gear half-boxes are matched. Since there is no corresponding seal accommodating portion 53 at the corresponding position of the matching surface of the other gear half-box, the sealant will be squeezed to completely fill the gap between the two gear half-boxes, and the sealing effect will be achieved after the sealant gradually solidifies.

[0066] Reference Figure 1 , which is a cross-sectional schematic diagram of the mating point of two gear half-boxes in the prior art. As shown in the figure, the mating surface of the gear half-box in the prior art does not have a seal accommodating portion. When filling the assembly surface with sealant, due to the lack of positioning assistance for the sealant, it is difficult to accurately control the filling position of the sealant, and the filling of the sealant may also be excessive. If the filling position of the sealant is closer to the inside of the gear box 5 or the filling is excessive, it is highly likely that part of the sealant will be squeezed into the inside of the gear box 5 and gradually solidify; as shown in the attached figure, Figure 1 As shown, the shaded part in the figure is the sealant that is squeezed and overflows to both sides, one side of which must be located inside the gear box 5; during the long-term operation of the gear box 5, these solidified sealants that are squeezed and retained near the assembly of the gear box 5 will fall into the lubricating oil under the influence of vibration, thereby reducing the effect of the lubricating oil, and even causing abnormal gear meshing due to the movement of the lubricating oil to the meshing point of the two gears.

[0067] In the present embodiment, due to the provision of the seal accommodating portion 53, the injection position of the sealant is relatively stable, and the amount of sealant added is relatively controllable. It only needs to be filled to a level slightly higher than the mating surface of the gear half-box, thereby avoiding the problem of excessive sealant filling. At the same time, since the seal accommodating portion 53 of the present embodiment also has a guiding effect, if there is a slight excess of local sealant in the seal accommodating portion 53, when the two gear half-boxes are mated and the sealant is squeezed, the sealant will flow along the seal accommodating portion 53 to other positions of the seal accommodating portion 53, so that the sealant is still relatively evenly located in various places of the seal accommodating portion 53. At this time, even if the sealant is squeezed into the interior of the gear box 5, the amount of sealant located inside the gear box 5 will be significantly less, and these glues will only exist in a small amount near the mating surface. At the same time, because the amount of sealant is small, it is difficult for it to fall off due to vibration of the gear box 5 and contaminate the lubricating oil.

[0068] Reference Figure 7In order to further prevent the sealant from entering the internal space of the gear box 5, in this embodiment, a glue overflow groove is set at the mating surface of one of the gear half boxes. The glue overflow groove 59 is located in the middle of the seal accommodating portion 53 and the internal space of the gear box 5. In this embodiment, if a small amount of sealant in the seal accommodating portion 53 is squeezed and moves to one side of the internal space of the gear box 5, it will enter the glue overflow groove 59 (refer to the attached Figure 6 (a small amount of shadow in the overflow groove 59 in Figure e); thus, even if there is a slight excess of sealant in the seal accommodating portion 53, the sealant cannot be squeezed into the gear box 5 during the assembly process of the gear half box. Figure 6 The seal accommodating portion 53 is arranged at the lower gear half-box, and the overflow glue groove 59 is arranged at the upper gear half-box, that is, the seal accommodating portion 53 and the overflow glue groove 59 are not located in the same gear half-box; but in other embodiments, the overflow glue groove 59 can also be arranged in the same gear half-box with the seal accommodating portion 53.

[0069] The sealant in this embodiment is anaerobic flat sealant, which is added to the seal accommodating portion 53 and the two gear half boxes are matched. The anaerobic flat sealant of the tightly abutted gear half boxes cannot come into contact with oxygen and solidify, thereby achieving sealing at the connection between the two gear half boxes and avoiding leakage of lubricating oil at the connection.

[0070] In other embodiments, the sealant can also be replaced by a sealing strip, which has elastic characteristics so that it can deform when squeezed and fill the gap between the two gear half-boxes to achieve a good sealing effect; at this time, the seal receiving groove can position the sealing strip to prevent the sealing strip from shifting and affecting the sealing effect.

[0071] In the above embodiment, the multi-functional vehicle can be an unmanned intelligent vehicle or a hand-held multi-functional vehicle; the hand-held multi-functional vehicle is equipped with a handle, and the user walks on the rear side of the multi-functional vehicle and holds the handle to control the multi-functional vehicle.

[0072] Different from the above-mentioned embodiment, the utility model also discloses a zero-turn multifunctional vehicle, which is equipped with a control mechanism, a battery pack, and a user platform connected to the frame and used to carry a user. The user platform can be a seat 3 (such as Figure 2 As shown in FIG. 1 , the seat 3 is connected to the frame; in other embodiments, the user platform may also be a standing platform for the user to stand on. The control mechanism is configured to be controlled by the user to send a travel signal to the walking mechanism, and the battery pack is configured on the frame 1 and is used to supply power to the working component and the walking component; the above-mentioned control mechanism is a conventional technical means that should be mastered by those skilled in the art, and will not be described in detail here.

[0073] In particular, different from the above-mentioned embodiments, the present invention also discloses Figure 2A riding lawn mower shown includes a frame 1, a seat 3, a cutting platform 2, a battery pack, a control mechanism, and a travel assembly, wherein the seat 3 is arranged on the upper side of the frame and is used for a user to sit on, the cutting platform 2 is arranged on the lower side of the frame and is used for mowing, the control mechanism is configured to be controlled by the user and send a travel signal to the travel mechanism, the battery pack is arranged on the frame and is used to supply power to the cutting platform 2 and the travel assembly; the travel assembly includes a left travel assembly and a right travel assembly, which are configured to make the riding lawn mower travel; wherein the left travel assembly and the right travel assembly are the same as the travel assembly of the aforementioned lawn mower.

[0074] It is additionally noted that the battery pack is disposed on the vehicle frame 1 and is detachably connected to the vehicle frame 1. The battery pack includes a plurality of battery cells. The plurality of battery cells may be selected from at least one of a first specification battery pack and a second specification battery pack. The specification differences between the first specification battery pack and the second specification battery pack include but are not limited to differences in battery pack capacity, voltage, battery internal resistance, weight, size, energy density, cell type, charge information, battery health status information, etc.

[0075] In some optional embodiments, the difference between the first specification battery pack and the second specification battery pack is the different battery pack capacities. The capacity of the first specification battery pack is greater than the capacity of the second specification battery pack. The second specification battery pack is configured to provide power for handheld garden tools. For example, the second specification battery pack can power garden tools such as lawn mowers, pruning machines, hair dryers, and chain saws. In addition, the second specification battery pack can also power torque output tools such as electric drills and electric hammers; power sawing tools such as electric circular saws, jigsaws, and reciprocating saws, or power grinding tools such as angle grinders and sanders.

[0076] In some optional embodiments, the difference between the first specification battery pack and the second specification battery pack is that the types of battery cells used are different. For example, the first specification battery pack and the second specification battery pack can respectively use lithium iron phosphate battery cells and ternary lithium battery cells. Multiple battery cells in the battery pack can also use nickel-chromium battery cells, lead-acid battery cells, graphene battery cells, etc.

[0077] The multiple battery cells of the battery pack are selected from at least one of the first specification battery pack and the second specification battery pack. This allows the multi-functional vehicle to be compatible with battery packs of different specifications, meeting high-power working requirements while also being able to adapt to handheld electric gardening tools, making the working methods of gardening staff more flexible.

[0078] Different from the above-mentioned embodiments, the utility model also discloses a walking assembly as described above, which is used to adapt to various multi-functional vehicles and provide necessary conditions for the driving of the multi-functional vehicles. Similarly, the walking assembly is not only suitable for lawn mowers, but also for snow blowers, snow sweepers, and sweepers, such as riding snow blowers, riding snow sweepers, riding sweepers, or other riding agricultural machinery and other multi-functional vehicles. In fact, as long as these tools include the above-mentioned description of the present application, they all fall within the protection scope of the present application.

[0079] The present invention is not limited to the above specific embodiments. A person skilled in the art can easily understand that there are many alternatives to the multifunctional vehicle and the travel assembly of the present invention without departing from the principle and scope of the present invention. The protection scope of the present invention shall be subject to the content of the claims.

Claims

1. A traveling assembly, applied to a multi-purpose vehicle, characterized in that: include: A driving wheel configured to contact the ground and be driven to move the multi-purpose vehicle; A driving motor configured to output driving force to a driving wheel; The gear box is arranged between the driving wheel and the travel motor and is used to transmit the driving force of the travel motor to the driving wheel; The gear box is formed by at least two gear half boxes, wherein the mating surfaces between one of the gear half boxes and the other gear half box are of a non-closed shape, and a seal accommodating portion is provided at the mating surface of one of the gear half boxes, wherein a seal that can be deformed by being squeezed is arranged in the seal accommodating portion to avoid leakage at the connection between the two gear half boxes after mating.

2. The walking assembly according to claim 1, characterized in that: The mating surfaces of at least two of the gear half-boxes are mated to form an axial hole connecting the inside and outside of the gear box. The seal accommodating portion is configured along the contour of the mating surface of the gear half-box and consists of a plurality of accommodating sections, and the number of the accommodating sections is equal to the number of the axial holes.

3. The walking assembly according to claim 2, characterized in that: A transmission shaft is arranged in the shaft hole, and a sealing ring is provided together with the transmission shaft and the gear half box.

4. The walking assembly according to claim 3, characterized in that: The sealing ring is at least partially located closer to the interior of the gearbox than the end of the sealing element receiving portion in the axial direction of the corresponding transmission shaft.

5. The walking assembly according to claim 1, characterized in that: The sealing member accommodating portion is a groove body opened on the matching surface, the depth of the sealing member accommodating portion is 0.1 mm to 5 mm, and the width of the sealing member accommodating portion is 0.1 mm to 5 mm.

6. The walking assembly according to claim 5, characterized in that: The depth of the sealing member accommodating portion is 1 mm, and the width of the sealing member accommodating portion is 1 mm.

7. The walking assembly according to claim 1, characterized in that: The mating surface of the gear half case is provided with a leakage hole penetrating the side wall of the gear half case, the leakage hole is not connected with the internal space of the gear half case, and the sealing member accommodating portion is located between the leakage hole and the internal space of the gear half case.

8. The walking assembly according to claim 1, characterized in that: The sealing member is a sealant, which is filled into the sealing member accommodating portion before the two gear half-boxes are matched with each other to form the gear box, and the filled sealant is higher than the matching surface.

9. A zero-turn multi-purpose vehicle, characterized in that: include: Frame; A user platform, configured on the frame and used to carry a user; An operating component, which is configured on the vehicle frame and is used to perform outdoor operations; A travel assembly, including a left travel assembly and a right travel assembly, configured to enable the zero-turn vehicle to travel; A battery pack is arranged on the frame and is used to supply power to the working components and the traveling components; A control mechanism, configured to be controlled by a user and send a travel signal to the walking mechanism; The left walking component and the right walking component include: a drive wheel configured to contact the ground and be driven to move the zero-turn multi-purpose vehicle; A driving motor configured to output a driving force to a driving wheel; The gear box is arranged between the driving wheel and the travel motor and is used to transmit the driving force of the travel motor to the driving wheel; The gear box is formed by at least two gear half boxes, wherein the mating surfaces between one of the gear half boxes and the other gear half box are of a non-closed shape, and a seal accommodating portion is provided at the mating surface of one of the gear half boxes, wherein a seal that can be deformed by being squeezed is arranged in the seal accommodating portion to avoid leakage at the connection between the two gear half boxes after mating.

10. A multi-functional vehicle, characterized in that: include: Frame; An operating component, which is configured on the vehicle frame and is used to perform outdoor operations; Walking components, including: A driving wheel configured to contact the ground and be driven to move the multi-purpose vehicle; A driving motor configured to output a driving force to a driving wheel; The gear box is arranged between the driving wheel and the travel motor and is used to transmit the driving force of the travel motor to the driving wheel; The gear box is formed by at least two gear half boxes, wherein the mating surfaces between one of the gear half boxes and the other gear half box are of a non-closed shape, and a seal accommodating portion is provided at the mating surface of one of the gear half boxes, wherein a seal that can be deformed by being squeezed is arranged in the seal accommodating portion to avoid leakage at the connection between the two gear half boxes after mating.

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