A stand-on zero-turn snow thrower

Abstract

This invention provides a standing, zero-steering snowplow, comprising a snowplow body, a snowplow mechanism, a control mechanism, a standing mechanism, and a drive mechanism. The drive mechanism is connected to the snowplow's tire assembly via a transmission assembly. The standing mechanism includes a pedal assembly rotatably mounted on one side of the snowplow body. The control mechanism is connected to and controls the transmission assembly and the snowplow mechanism via a power unit. During operation, the operator stands on the pedal assembly and controls the snowplow's movement or snowplowing operation via the control mechanism. This standing, zero-steering snowplow offers enhanced safety, greater ease of operation, a simple internal structure, continuously variable transmission, and on-the-spot steering. Its robust overall structure also broadens its application range.

Description

Technical Field

[0001] This invention relates to the field of snowplow technology, and in particular to a standing, zero-steering snowplow. Background Technology

[0002] Winters in northern regions are cold and snowy, often causing blockages on highways, urban roads, rural roads, and around houses, making normal traffic impossible and causing considerable inconvenience to drivers and pedestrians. To ensure unobstructed roads, timely snow removal is essential. Currently, the main methods for snow removal include manual snow removal, chemical solvent snow removal, and mechanical snow removal. Manual snow removal typically involves pushing, shoveling, and sweeping, but its disadvantages include being time-consuming, labor-intensive, and inefficient, suitable only for small areas. While chemical solvent snow removal is simple and convenient, the de-icing agents can chemically corrode the road surface, shortening its lifespan, and also pose a serious pollution problem to the surrounding environment. Mechanical snow removal is currently the most effective method, offering fast and efficient snow removal at low cost without causing environmental pollution. Consequently, various fast and economical small snowplows have emerged and rapidly gained widespread adoption. However, existing snowplows on the market still have several shortcomings: most are hand-push type, which is difficult to maneuver due to icy ground. Furthermore, the heavy nature of the snowplow and its vibrations on uneven terrain significantly impact the user experience. Additionally, most existing snowplows use multi-stage gears, achieving different speeds through planetary gear combinations, or friction discs for speed regulation. While this structure is simple and convenient, it can lead to short lifespans of friction wheel drives or multi-stage planetary gears, and insufficient steering, failing to meet the diverse needs of users in various scenarios. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problem to be solved by the present invention is to provide a standing zero-steering snow sweeper that has higher safety, is less labor-intensive to use, occupies less space, is convenient for users to operate while moving with the snow sweeper, improves snow sweeping efficiency, can achieve stepless speed change and on-the-spot turning, has more stable power output, and allows for independent control of zones.

[0005] (II) Technical Solution

[0006] To address the aforementioned technical problems, this invention discloses a standing, zero-steering snowplow, comprising a snowplow body, a snowplow mechanism, a control mechanism, a standing mechanism, and a drive mechanism. The drive mechanism is connected to the snowplow's tire assembly via a transmission assembly. The standing mechanism includes a pedal assembly rotatably mounted on one side of the snowplow body. The control mechanism is connected to and controls the transmission assembly and the snowplow mechanism via a power device. During operation, the operator stands on the pedal assembly and controls the snowplow's movement or snowplowing work through the control mechanism. This structure allows the tire assembly to turn or rotate on the spot via the drive mechanism, ensuring smoother output from the tire assembly to the snowplow. It also enables stepless speed regulation and has a simple internal structure. The rotating pedal of the standing mechanism facilitates user operation while allowing the snowplow to move alongside it, providing a certain level of safety. The control mechanism further facilitates user operation of the snowplow, ensuring its usability in various road conditions and further improving snowplowing efficiency.

[0007] Furthermore, the transmission assembly includes a first transmission and a second transmission, which are arranged side-by-side or symmetrically within the transmission housing. The first transmission connects to a first tire component on one side, and the second transmission connects to a second tire component on the other side. The first tire component and the second tire component are pneumatic tires, pneumatic tires, or tracks. The first transmission and the second transmission enable zoned control of the tires on both sides. Combined with the use of pneumatic tires, the tires do not need to be inflated and are not affected by leaks from nails, resulting in smooth power output and effectively extending the service life of the snowplow to a certain extent.

[0008] Furthermore, the second transmission has the same structure as the first transmission; the first transmission includes a plunger pump and a plunger motor. One end of the plunger pump cooperates with the power unit to realize the active rotation of the plunger pump, and the other end of the plunger pump cooperates with a sealed cavity in the transmission housing to realize oil inlet or oil replenishment. The plunger motor cooperates with the first tire component through an output component, and the plunger pump and the plunger motor are connected by an oil circuit to realize the power transmission from the plunger pump to the plunger motor. The power input of the power unit causes the plunger pump to rotate, thereby generating oil pressure, which pushes the oil from the plunger pump to the plunger motor to realize the rotation of the plunger motor and complete the power output to the tire component. It abandons the traditional gear transmission to realize continuously variable transmission, has a simple internal structure, more stable power output, longer service life, and better performance.

[0009] Furthermore, the first transmission includes a swashplate, the angle of which is adjustable within the transmission housing. A receiving cavity is formed within the swashplate, and the plunger pump is placed within the receiving cavity. This structure allows for vertical angle adjustment via the swashplate, and combined with the first thrust bearing, enables the tire assembly to rotate forward, reverse, or idle. The internal structure is simple and convenient for user operation.

[0010] Furthermore, the drive mechanism includes an adjustment component. The swashplate and the transmission housing are connected via the adjustment component. The adjustment component includes an adjustment member and a return block. The return blocks are symmetrically arranged at both ends of one side of the adjustment member, and an elastic member is provided between the return blocks. The adjustment member is fixedly connected to one end of the swashplate. When no external force is applied, the adjustment member automatically springs back to the middle of the elastic member. This structure allows for angle adjustment of the swashplate via the adjustment member, ensuring that the swashplate is more stably mounted on the snowplow body, improving the overall structural robustness, and ensuring smooth power output. In addition, the adjustment member allows the user to easily rotate and adjust the swashplate from the outside, making operation more convenient.

[0011] Furthermore, the plunger pump includes a first cylinder and a first plunger. The first cylinder is rotatably disposed within the swashplate, and the first plunger is synchronously rotatably connected to the input shaft on one side of the drive mechanism. The input shaft drives the first plunger to be annularly disposed within the first cylinder and arranged in the same direction as the input shaft via the power device. A first thrust bearing is disposed between the plunger pump and the swashplate. One end of the first plunger is placed within the first cylinder, and the other end of the first plunger engages with the first thrust bearing. The first cylinder can rotate synchronously with the input shaft, and in conjunction with the first thrust bearing, causes the first plunger to reciprocate within the first cylinder, thereby controlling the oil pressure to ensure the operation of the plunger motor. When adjusting the swashplate, the tilt angle of the first thrust bearing can be changed to achieve different internal oil pressure controls.

[0012] Furthermore, the plunger motor includes: a second cylinder and a second plunger. The second cylinder is synchronously rotatably connected to the output shaft of the rotary output device. The second plunger is annularly disposed within the second cylinder and coaxially disposed with the output shaft. A slanted groove is provided on the transmission housing. A second thrust bearing is disposed between the second cylinder and the slanted groove. One end of the second plunger engages with the second thrust bearing. An elastic body is disposed between the first plunger and the first cylinder, and between the second plunger and the second cylinder. The second thrust bearing engages with the slanted groove. The slanted groove is obliquely disposed on the housing at a certain angle. The oil pressure of the plunger pump can drive the second plunger to reciprocate within the second cylinder in conjunction with the second thrust bearing, thereby driving the rotation of the second cylinder and achieving power output. The overall structure is simple, the power output is stable, and continuously variable transmission can be achieved.

[0013] Furthermore, the plunger pump is positioned below the plunger motor, and an oil distributor is sealed on one side of both the plunger pump and the plunger motor. The oil distributor can control the oil circuit connection between the plunger pump and the plunger motor, thereby enabling the oil pressure generated by the plunger pump to drive the rotation of the plunger motor and achieve power transmission. The internal structure occupies less space, has better sealing, higher power output efficiency, and can achieve continuously variable transmission.

[0014] Furthermore, an oil inlet plate is sealed on one side of the oil distributor plate, and an overpressure valve is formed on the outer side of the oil inlet plate. The overpressure valve is sealed and connected to the inside of the transmission housing for oil supply or discharge between the plunger pump and the plunger motor. The oil inlet plate can prevent the normal operation from being affected by internal oil leakage and can provide oil replenishment to ensure the normal operation of the internal structure.

[0015] Furthermore, the oil distribution plate is provided with a first oil passage and a second oil passage, and the two ends of the first oil passage and the second oil passage are respectively connected to the plunger pump and the plunger motor.

[0016] Furthermore, an oil inlet passage is provided on the outer side of the oil distributor plate near the plunger pump. Both ends of the oil inlet passage are provided with one-way control valves for controlling the flow of external oil into the plunger pump, which can achieve one-way flow inside the plunger pump and play a certain oil replenishment effect, making the internal structure more reasonable.

[0017] Furthermore, the upper end of the oil distributor is provided with a bypass assembly for oil circuit control when the drive axle is idling. The bypass assembly is located at the upper end of the plunger motor. The bypass assembly includes a bypass valve and a bypass controller. The bypass valve is connected to the oil distributor, and the bypass controller is used to control the opening or closing of the bypass valve with the first oil circuit channel and the second oil circuit channel. This structure enables the plunger pump and the plunger motor to idle through the bypass assembly, avoiding excessive internal oil pressure that could affect normal use.

[0018] Furthermore, the pedal assembly includes a pedal rotatably disposed on the lower side of the snowplow body. The pedal has a standing area for human operation, allowing the user to stand directly on it and move along with the snowplow during snow removal. This avoids snow removal and operation being affected by icy or uneven ground, and provides a certain degree of safety protection for the operator.

[0019] Furthermore, the control mechanism includes an operation panel and an operation linkage. The operation panel is mounted on the snow sweeper body and positioned above the pedal, corresponding to the standing area. The operation linkage is connected to the snow sweeping mechanism and the drive mechanism respectively and is used to control the snow sweeper's left-hand drive, right-hand drive, parking, auger transmission, and snow sweeping operation. The design of the operation panel and the operation linkage makes it more convenient for users to operate and use, and occupies less space, resulting in a simpler overall structure.

[0020] Furthermore, a roller assembly is provided on the lower end face of the pedal assembly, and the upper end of the roller assembly is fixedly mounted on the pedal by a fixing seat. The roller is rotatably mounted on the fixing seat and contacts the ground. The roller assembly can ensure the operator's center of gravity position when standing by contacting the ground, which can further play a protective role. At the same time, it can ensure that the pedal assembly moves forward synchronously with the snow sweeper, which can effectively improve the snow sweeping efficiency.

[0021] Furthermore, the pedal has a mounting end and a stop portion. The mounting end is located on both sides of the support frame of the snow sweeper body, and the mounting end is rotatably connected to the support frame via screw shafts. The stop portion is located on the outer edge of the pedal and protrudes upwards. The standing area is located within the stop portion. The screw shafts allow the pedal to be freely rotated and adjusted. When traversing uneven ground, the pedal can adaptively adjust to ensure normal operation and safety for the operator. In addition, the pedal can be folded upwards to restore the traditional push-pull operation of the snow sweeper, making the snow sweeper more versatile and meeting the needs of different snow sweeping scenarios. The stop portion provides a certain degree of protection for the user and, when the pedal is folded up, works with the machine body to limit the pedal's movement, extending its service life and ensuring greater user safety.

[0022] Furthermore, a limiting component is provided on the outer end face of the pedal, and the limiting component is fixedly mounted on the pedal. A limiting hook is provided on the snow sweeper body corresponding to the limiting component. When the pedal is folded up, the limiting hook cooperates with the limiting component to limit and fix the pedal, ensuring the stability of the pedal when folded up and achieving a certain limiting and fixing effect.

[0023] Furthermore, a buffer pad is provided on one side of the control panel. The buffer pad is vertically arranged on one side of the control panel and corresponds to the standing area. The buffer pad can provide cushioning protection for the user, reduce the impact and vibration on the human body when the snow sweeper is working, and improve the user experience.

[0024] Furthermore, the power unit is positioned above the drive mechanism, and a pulley is provided on one side of the drive mechanism. The power unit and the pulley are connected by a belt to transmit power. The snow sweeping mechanism is positioned in front of the drive mechanism and connected to the power unit. It drives the drive mechanism through the pulley to output power to the tire assembly. The internal structure is reasonably designed and the overall structure is simple.

[0025] (III) Beneficial Effects

[0026] The advantages of this standing zero-steering snowplow compared to existing technologies are: it has more diverse functions, improves the working efficiency of the snowplow and its applicability in different road conditions, and meets the needs of use on icy and uneven ground. The rotatable pedal assembly allows for convenient standing operation by the user, moving synchronously with the snowplow and ensuring user safety and stability. The overall structure of the snowplow is simpler and more practical; retracting the pedal allows the snowplow to move forward. The internal structure is more stable. In addition, the drive mechanism enables stepless speed regulation, making the power output smoother and allowing the snowplow to turn on the spot or turn, making operation more convenient. Attached Figure Description

[0027] Figure 1 This is a perspective view of a standing, zero-steering snow sweeper according to the present invention;

[0028] Figure 2 This is a perspective view of a standing, zero-steering snow sweeper of the present invention with the bottom facing upwards;

[0029] Figure 3 This is a perspective view of a standing, zero-steering snow sweeper according to the present invention, viewed from the front.

[0030] Figure 4 This is a perspective view of a standing zero-steering snowplow of the present invention, excluding the tire assembly and snowplow mechanism;

[0031] Figure 5 This is a perspective view of a standing zero-steering snow sweeper drive mechanism according to the present invention;

[0032] Figure 6 This is a perspective view of a transmission assembly for a standing, zero-steering snow sweeper drive mechanism according to the present invention.

[0033] Figure 7 This is a side view of a transmission assembly for a standing zero-steering snowplow drive mechanism according to the present invention.

[0034] Figure 8 This is a schematic diagram of the structure of a standing zero-steering snow sweeper of the present invention, with the gearbox housing removed;

[0035] Figure 9 This is a perspective view of a standing zero-steering snow sweeper of the present invention, with the transmission housing removed.

[0036] Figure 10 This is a cross-sectional view of a standing zero-steering snowplow transmission assembly according to the present invention;

[0037] Figure 11 This is a schematic diagram of the structure of the first transmission of a standing zero-steering snow sweeper according to the present invention;

[0038] Figure 12 This is a perspective view of the first transmission and oil distributor of a standing zero-steering snow sweeper according to the present invention;

[0039] Figure 13 This is a schematic diagram of the structure of the first gearbox of a standing zero-steering snow sweeper of the present invention, excluding the plunger motor;

[0040] Figure 14 This is a schematic diagram of the oil distribution plate of a standing zero-steering snow sweeper according to the present invention;

[0041] Figure 15 This is a schematic diagram of the structure of a standing zero-steering snowplow of the present invention, excluding the tire assembly and snowplow mechanism;

[0042] Figure 16 This is a schematic diagram of the structure of a standing zero-steering snowplow pedal according to the present invention;

[0043] Figure 17 This is a cross-sectional view of the oil inlet passage and one-way control valve of the pedal of a standing zero-steering snow sweeper according to the present invention.

[0044] Wherein: 1 is the snow sweeper body, 101 is the support frame, 2 is the snow sweeping mechanism, 3 is the control mechanism, 301 is the operation panel, 302 is the operation linkage, 4 is the standing mechanism, 401 is the pedal assembly, 5 is the drive mechanism, 6 is the gearbox assembly, 601 is the first gearbox, 611 is the plunger pump, 621 is the plunger motor, 602 is the second gearbox, 7 is the tire assembly, 701 is the first tire component, 702 is the second tire component, 8 is the power unit, 9 is the swashplate, 901 is the accommodating cavity, 10 is the gearbox housing, 11 is the adjustment assembly, 1101 is the adjustment component, 1102 is the return block, 1201 is the first cylinder block, 1202 is the second cylinder block, 1301 is the first plunger, 1302 is the second plunger, 14 1501 is the input shaft, 1502 is the first thrust bearing, 1502 is the second thrust bearing, 16 is the inclined groove, 17 is the oil distribution plate, 1701 is the first oil passage, 1702 is the second oil passage, 18 is the oil inlet plate, 1801 is the overpressure valve, 19 is the oil inlet passage, 20 is the one-way control valve, 21 is the bypass assembly, 2101 is the bypass valve, 2102 is the bypass controller, 22 is the pedal, 2201 is the mounting end, 2202 is the stop part, 23 is the standing area, 24 is the roller assembly, 2401 is the fixed seat, 2402 is the roller, 26 is the screw shaft, 27 is the limit component, 28 is the limit hook, 29 is the buffer pad, 30 is the pulley, 31 is the elastic component, 32 is the elastic body, and 33 is the output shaft. Detailed Implementation

[0045] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0046] See Figures 1-17 A standing, zero-steering snowplow includes a snowplow body 1, a snowplow mechanism 2, a control mechanism 3, a standing mechanism 4, and a drive mechanism 5. The drive mechanism 5 is connected to the snowplow's tire assembly 7 via a transmission assembly 6. The standing mechanism 4 includes a pedal assembly 401, which is rotatably mounted on one side of the snowplow body 1. The control mechanism 3 is connected to and controls the transmission assembly 6 and the snowplow mechanism 2 via a power unit 8. During operation, the operator stands on the pedal assembly 401 and controls the snowplow's movement or snowplowing work through the control mechanism 3. The drive mechanism 5 enables the tire assembly 7 to turn or rotate on the spot, ensuring a smoother output from the tire assembly 7 to the snowplow. It also achieves stepless speed regulation. The internal structure is simple. The rotating pedal 22 of the standing mechanism 4 allows for convenient standing operation and allows the snowplow to move alongside it, providing a certain level of safety protection. The control mechanism 3 further facilitates the operation of the snowplow, ensuring its usability in various road conditions and improving snowplowing efficiency.

[0047] See Figures 6-10 The transmission assembly 6 includes a first transmission 601 and a second transmission 602. The first transmission 601 and the second transmission 602 are arranged side by side or symmetrically within the transmission housing 10. The first transmission 601 is connected to a first tire component 701 on one side, and the second transmission 602 is connected to a second tire component 702 on the other side. In this embodiment, the first tire component 701 and the second tire component 702 are pneumatic tires, pneumatic tires, or tracks. The first transmission 601 and the second transmission 602 can achieve zoned control of the tires on both sides. Combined with the use of pneumatic tires, the tires do not need to be inflated and are not afraid of leaks from nails, etc., so that the power output is smooth and can effectively extend the service life of the snowplow to a certain extent.

[0048] See Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12The second transmission 602 has the same structure as the first transmission 601. The first transmission 601 includes a plunger pump 611 and a plunger motor 621. One end of the plunger pump 611 cooperates with the power unit 8 to realize the active rotation of the plunger pump 611. The other end of the plunger pump 611 cooperates with the sealed cavity in the transmission housing 10 to realize oil inlet or oil replenishment. The plunger motor 621 cooperates with the first tire component 701 through the output component. The plunger pump 611 and the plunger motor 621 are connected by an oil circuit to realize the power transmission from the plunger pump 611 to the plunger motor 621. The power input of the power unit 8 makes the plunger pump 611 rotate to generate oil pressure, which pressurizes the oil from the plunger pump 611 to the plunger motor 621 to realize the rotation of the plunger motor 621 and complete the power output to the tire component 7. It abandons the traditional gear transmission to realize stepless speed change, has a simple internal structure, more stable power output, longer service life, and better performance.

[0049] See Figure 8 and Figure 10 The first transmission 601 includes a swashplate 9, which is angle-adjustably disposed within the transmission housing 10. A receiving cavity 901 is provided in the swashplate 9, and a plunger pump 611 is placed in the receiving cavity 901. The swashplate 9 can be used to adjust the vertical angle. Combined with the first thrust bearing 1501, it can realize the forward rotation, reverse rotation, or free rotation of the tire assembly 7. The internal structure is simple and convenient for users to operate.

[0050] See Figure 1 and Figure 7 The drive mechanism 5 includes an adjustment component 11. The swashplate 9 and the gearbox housing 10 are connected by the adjustment component 11. The adjustment component 11 includes an adjustment element 1101 and a return block 1102. The return blocks 1102 are symmetrically arranged at both ends of one side of the adjustment element 1101, and an elastic element 31 is provided between the return blocks 1102. The adjustment element 1101 is fixedly connected to one end of the swashplate 9, and the angle of the swashplate 9 can be adjusted by the adjustment element 1101 to ensure that the swashplate 9 can be more stably set on the snow sweeper body 1, so that the overall structure is more robust and the power output is stable. In addition, the setting of the adjustment component 11 allows the user to easily adjust the rotation of the swashplate 9 from the outside, making the operation more convenient.

[0051] See Figures 10-14The plunger pump 611 includes a first cylinder 1201 and a first plunger 1301. The first cylinder 1201 is rotatably mounted inside the swashplate 9, and the first plunger 1301 is synchronously connected to the input shaft 14 of the drive mechanism 5. The input shaft 14 is driven by the power unit 8. The first plunger 1301 is annularly mounted inside the first cylinder 1201 and is arranged in the same direction as the input shaft 14. A first thrust bearing 1501 is provided between the plunger pump 611 and the swashplate 9. One end of the first plunger 1301 is placed inside the first cylinder 1201, and the other end of the first plunger 1301 cooperates with the first thrust bearing 1501. The first cylinder 1201 can rotate synchronously with the input shaft 14 and, in conjunction with the first thrust bearing 1501, causes the first plunger 1301 to reciprocate within the first cylinder 1201, thereby achieving oil pressure control to ensure the operation of the plunger motor 621. When adjusting the swashplate 9, the tilt angle of the first thrust bearing 1501 can be changed to achieve different internal oil pressure controls.

[0052] See Figures 10-14 The plunger motor 621 includes a second cylinder 1202 and a second plunger 1302. The second cylinder 1202 is synchronously rotatably connected to the output shaft 33 of the rotary output device. The second plunger 1302 is annularly arranged inside the second cylinder 1202 and coaxially arranged with the output shaft 33. A slanted groove 16 is provided on the transmission housing 10. A second thrust bearing 1502 is provided between the second cylinder 1202 and the slanted groove 16. One end of the second plunger 1302 cooperates with the second thrust bearing 1502. The first plunger 1301 is connected to the first cylinder. (1201) An elastic body 32 is provided between the second plunger 1302 and the second cylinder 1202. The second thrust bearing 1502 cooperates with the inclined groove 16. The inclined groove 16 is obliquely arranged on the transmission housing 10 at a certain angle. The oil pressure of the plunger pump 611 can drive the second plunger 1302 to cooperate with the second thrust bearing 1502 to reciprocate in the second cylinder 1202, thereby driving the rotation of the second cylinder 1202 and realizing power output. The overall structure is simple, the power output is stable, and it can realize stepless speed change.

[0053] See figure Figure 8 , Figure 10 , Figure 11 , Figure 12 and Figure 14 The plunger pump 611 is located below the plunger motor 621. An oil distributor 17 is sealed on one side of the plunger pump 611 and the plunger motor 621. The oil distributor 17 can control the oil circuit between the plunger pump 611 and the plunger motor 621, so that the oil pressure generated by the plunger pump 611 drives the plunger motor 621 to rotate and realize power transmission. The internal structure occupies less space, has better sealing, higher power output efficiency, and can realize continuously variable transmission.

[0054] See Figure 9 and Figure 11 An oil inlet plate 18 is sealed on one side of the oil distribution plate 17. An overpressure valve 1801 is formed on the outer side of the oil inlet plate 18. The overpressure valve 1801 is sealed and connected to the inside of the transmission housing 10 for oil supply or discharge between the plunger pump 611 and the plunger motor 621. The overpressure valve 1801 is connected to the transmission housing 10 for oil supply between the plunger pump 611 and the plunger motor 621. The oil inlet plate 18 can prevent the normal operation from being affected by internal oil leakage and can provide oil replenishment to ensure the normal operation of the internal structure.

[0055] See Figure 16 and Figure 17 The oil distribution plate 17 has a first oil passage 1701 and a second oil passage 1702. The two ends of the first oil passage 1701 and the second oil passage 1702 are respectively connected to the plunger pump 611 and the plunger motor 621. The oil passages can ensure high oil pressure and low oil pressure oil passages, and ensure the normal use of the internal structure.

[0056] See Figure 16 An oil inlet passage 19 is provided on the outer side of the oil distribution plate 17 near the plunger pump 611. Both ends of the oil inlet passage 19 are provided with one-way control valves 20 for controlling the flow of external oil into the plunger pump 611, which can realize one-way flow into the plunger pump 611 and play a certain oil replenishment effect. The internal structure is more reasonable.

[0057] See Figure 5 and Figure 8 The upper end of the oil distribution plate 17 is provided with a bypass component 21 for oil circuit control when the drive axle is idling. The bypass component 21 is located at the upper end of the plunger motor 621. The bypass component 21 includes a bypass valve 2101 and a bypass controller 2102. The bypass valve 2101 is connected to the oil distribution plate 17. The bypass controller 2102 is used to control the opening or closing of the bypass valve 2101 with the first oil circuit channel 1701 and the second oil circuit channel 1702. The idling operation of the plunger pump 611 and the plunger motor 621 can be realized through the setting of the bypass component 21, so as to avoid excessive internal oil pressure and affect normal use.

[0058] See Figure 2 , Figure 3 , Figure 4 , Figure 15 and Figure 16The pedal assembly 401 includes a pedal 22, which is rotatably disposed on the lower side of the snow sweeper body 1. A standing area 23 for human standing operation is formed on the pedal 22. The pedal 22 allows the user to stand directly on it and move together with the snow sweeper when performing snow sweeping work. This avoids the snow sweeping work and operation being affected by icy or uneven ground, and provides a certain degree of safety protection for the operator.

[0059] See Figure 2 , Figure 3 , Figure 4 The control mechanism 3 includes an operation panel 301 and an operation linkage 302. The operation panel 301 is mounted on the snow sweeper body 1 and is positioned above the pedal 22 and corresponding to the standing area 23. The operation linkage 302 is connected to the snow sweeping mechanism 2 and the drive mechanism 5 respectively and is used to control the snow sweeper's left drive, right drive, parking, auger transmission, and snow sweeping operation. The design of the operation panel 301 and the operation linkage 302 makes it more convenient for users to operate and use, and occupies less space, with a simpler overall structure.

[0060] See Figure 2 , Figure 3 , Figure 4 , Figure 15 and Figure 16 The lower end of the pedal assembly 401 is provided with a roller assembly 24. The upper end of the roller assembly 24 is fixedly mounted on the pedal 22 by a fixing seat 2401. A roller 2402 is rotatably mounted on the fixing seat 2401. The roller 2402 contacts the ground, which can ensure the operator's center of gravity position when standing, and can further play a protective role. At the same time, it ensures that the pedal assembly 401 moves forward synchronously with the snow sweeper, which effectively improves the snow sweeping efficiency.

[0061] See Figure 2 , Figure 3 , Figure 4 , Figure 15 and Figure 16The pedal 22 has a mounting end 2201 and a stop 2202. The mounting end 2201 is located on both sides of the support frame 101 of the snow sweeper body 1, and the mounting end 2201 is rotatably connected to the support frame 101 by a screw shaft 26. The stop 2202 is located on the outer edge of the pedal 22 and protrudes upward. The standing area 23 is located inside the stop 2202. The screw shaft 26 allows the pedal 22 to be freely rotated and adjusted. When passing over uneven ground, the pedal 22 can adaptively adjust to ensure normal operation and safety for the operator. In addition, the pedal 22 can be folded upward to restore the traditional push-pull operation of the snow sweeper, making the snow sweeper more versatile and meeting the needs of different snow sweeping scenarios. The stop 2202 can provide a certain degree of protection for the user. At the same time, when the pedal 22 is folded up, it can cooperate with the machine body to limit the pedal 22, extending the service life of the pedal 22 and ensuring safer use for the user.

[0062] See Figure 2 , Figure 3 , Figure 4 , Figure 15 and Figure 16 A limiting element 27 is provided on the outer end face of the pedal 22. The limiting element 27 is fixedly installed on the pedal 22. A limiting hook 28 is provided on the snow sweeper body 1 corresponding to the limiting element 27. When the pedal 22 is folded up, the limiting hook 28 cooperates with the limiting element 27 to limit and fix the pedal 22, ensuring the stability of the pedal when folded up and playing a certain limiting and fixing effect.

[0063] See Figure 2 , Figure 3 and Figure 4 A buffer pad 29 is provided on one side of the control panel 301. The buffer pad 29 is vertically arranged on one side of the control panel 301 and corresponds to the standing area 23. The buffer pad 29 can provide cushioning protection for the user, reduce the impact and vibration on the human body when the snow sweeper is working, and improve the user experience.

[0064] See Figure 1 , Figure 2 and Figure 3 The power unit 8 is located above the drive mechanism 5. A pulley 30 is provided on one side of the drive mechanism 5. The power unit 8 and the pulley 30 are connected by a belt to transmit power. In this invention, a fan can also be provided on one side of the pulley 30. The fan corresponds to the reducer assembly 6 and can play a cooling role to ensure the normal use of the reducer assembly 6. The snow sweeping mechanism 2 is located in front of the drive mechanism 5 and connected to the power unit 8. It drives the drive mechanism 5 through the pulley 30 to output power to the tire assembly 7. The internal structure is reasonably set and the overall structure is simple.

[0065] This embodiment of the standing zero-steering snowplow features a rotatable pedal assembly, enabling convenient standing operation for users. It offers more diverse functions, improving snowplow efficiency and adaptability to various road conditions, including icy and uneven surfaces. The pedal assembly allows for synchronized movement, ensuring user safety and stability. The overall structure is simpler and more practical; retracting the pedal propels the snowplow forward. The internal structure is more robust, and the drive mechanism enables stepless speed regulation, resulting in smoother power output. It also allows for on-the-spot turning and cornering, making operation more convenient.

[0066] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A stand-on zero-turn snow thrower characterized by, The utility model provides a snow sweeper, which comprises a snow sweeper body (1), a snow sweeping mechanism (2), a control mechanism (3), a standing mechanism (4) and a driving mechanism (5) arranged on the snow sweeper body (1), the driving mechanism (5) is connected with a tire assembly (7) of the snow sweeper through a transmission assembly (6), the standing mechanism (4) comprises a pedal assembly (401) rotatably arranged on one side of the snow sweeper body (1), the control mechanism (3) is connected to control the transmission assembly (6) and the snow sweeping mechanism (2) through a power device (8); during operation, an operator stands on the pedal assembly (401) and controls the snow sweeper to move or work through the control mechanism (3). The transmission assembly (6) comprises a first transmission (601) and a second transmission (602), the first transmission (601) and the second transmission (602) are arranged in parallel or symmetrically in a transmission housing (10), the first transmission (601) is connected with a first tire member (701) on one side, and the second transmission (602) is connected with a second tire member (702) on the other side. The second transmission (602) has the same structure as the first transmission (601); the first transmission (601) comprises a plunger pump (611) and a plunger motor (621), one end of the plunger pump (611) is matched with the power device (8) to realize active rotation of the plunger pump (611), and the other end of the plunger pump (611) is matched with a sealed cavity in the transmission housing (10) to realize oil feeding or oil supplementing. The first transmission (601) comprises a swash plate (9) which is adjustably arranged in the transmission housing (10), the swash plate (9) is provided with a containing cavity (901) therein, and the plunger pump (611) is arranged in the containing cavity (901); the driving mechanism (5) comprises an adjusting assembly (11), the swash plate (9) and the transmission housing (10) are connected and arranged through the adjusting assembly (11), the adjusting assembly (11) comprises an adjusting piece (1101) and a return block (1102), the return block (1102) is symmetrically arranged at two ends of one side of the adjusting piece (1101) and is provided with an elastic piece (31) between the return blocks (1102), and one end of the adjusting piece (1101) is fixedly connected with the swash plate (9). The plunger pump (611) is arranged below the plunger motor (621), and one side of the plunger pump (611) and the plunger motor (621) is sealingly provided with an oil distribution disc (17); the oil distribution disc (17) is provided with a first oil passage (1701) and a second oil passage (1702), and the two ends of the first oil passage (1701) and the second oil passage (1702) are in communication with the plunger pump (611) and the plunger motor (621) respectively; the upper end of the oil distribution disc (17) is provided with a bypass assembly (21) for oil passage control when the drive axle is idling, and the bypass assembly (21) is arranged at the upper end of the plunger motor (621); the bypass assembly (21) comprises a bypass valve (2101) and a bypass controller (2102), the bypass valve (2101) is in communication with the oil distribution disc (17), and the bypass controller (2102) is used for controlling the bypass valve (2101) to be in conduction or closed with the first oil passage (1701) and the second oil passage (1702); The pedal assembly (401) comprises a pedal (22), the pedal (22) is rotatably arranged at the lower end of one side of the snow sweeper body (1), and a standing area (23) for standing operation of a human body is formed on the pedal (22); a limiting piece (27) is arranged on the outer side end surface of the pedal (22), the limiting piece (27) is fixedly arranged on the pedal (22), and a limiting clamping hook (28) corresponding to the limiting piece (27) is arranged on the snow sweeper body (1), and when the pedal (22) is upwardly stored, the limiting clamping hook (28) cooperates with the limiting piece (27) to realize limiting and fixing of the pedal (22); One side of the oil distribution disc (17) is sealingly provided with an oil inlet disc (18), an overpressure valve (1801) is formed on the outer side of the oil inlet disc (18), the overpressure valve (1801) is in sealing communication with the transmission housing (10) for oil supply or oil discharge between the plunger pump (611) and the plunger motor (621); The outer side of one end of the oil distribution disc (17) close to the plunger pump (611) is provided with an oil inlet passage (19), and a one-way control valve (20) for controlling external oil flow into the plunger pump (611) is arranged at both ends of the oil inlet passage (19); The lower end surface of the pedal assembly (401) is provided with a roller assembly (24), the upper end of the roller assembly (24) is fixedly arranged on the pedal (22) through a fixing seat (2401), a roller (2402) is rotatably arranged on the fixing seat (2401), and the roller (2402) is in contact with the ground; The pedal (22) is provided with a mounting end (2201) and a stop portion (2202), the mounting end (2201) is arranged on both sides of the support frame (101) of the snow sweeper body (1), and the mounting end (2201) is rotationally connected with the support frame (101) through a screw shaft (26); the stop portion (2202) is arranged on the outer edge of the pedal (22) and protrudes upward, and the standing area (23) is arranged in the stop portion (2202).

2. The stand-up zero-turn snow thrower of claim 1, wherein, The first tire member (701) and the second tire member (702) are non-pneumatic tires or pneumatic tires or tracks.

3. The stand-up zero-turn snow thrower of claim 1, wherein, The plunger motor (621) is matched with the first tire member (701) through an output assembly, and the plunger pump (611) and the plunger motor (621) are communicated through an oil path to realize power transmission from the plunger pump (611) to the plunger motor (621).

4. The stand-up zero-turn snow thrower of claim 3, wherein, The plunger pump (611) comprises a first cylinder body (1201) and a first plunger (1301), the first cylinder body (1201) is rotationally arranged in the swash plate (9), the first plunger (1301) is rotationally connected with an input shaft (14) on one side of the driving mechanism (5), the input shaft (14) is driven by the power device (8), and the first plunger (1301) is annularly arranged in the first cylinder body (1201) and coaxially arranged with the input shaft (14).

5. The stand-up zero-turn snow thrower of claim 4, wherein, A first thrust bearing (1501) is arranged between the plunger pump (611) and the swash plate (9), one end of the first plunger (1301) is arranged in the first cylinder body (1201), and the other end of the first plunger (1301) is matched with the first thrust bearing (1501).

6. The stand-up zero-turn snow thrower of claim 5, wherein, The plunger motor (621) comprises a second cylinder body (1202) and a second plunger (1302), the second cylinder body (1202) is rotationally connected with an output shaft (33) of a rotating output device, and the second plunger (1302) is annularly arranged in the second cylinder body (1202) and coaxially arranged with the output shaft (33).

7. The stand-up zero-turn snow thrower of claim 6, wherein, A second thrust bearing (1502) is arranged between the second cylinder body (1202) and a bevel groove (16) of the transmission housing (10), one end of the second plunger (1302) is matched with the second thrust bearing (1502), and elastic bodies (32) are arranged between the first plunger (1301) and the first cylinder body (1201) and between the second plunger (1302) and the second cylinder body (1202).

8. The stand-up zero-turn snow thrower of claim 1, wherein, The control mechanism (3) comprises an operation panel (301) and an operation connecting rod (302), the operation panel (301) is arranged on the snow sweeper body (1), and the operation panel (301) is arranged above the pedal (22) and corresponds to the standing area (23).

9. The stand-up zero-turn snow thrower of claim 8, wherein, The operation connecting rod (302) is connected with the snow sweeping mechanism (2) and the driving mechanism (5) respectively and is used for controlling left driving, right driving, parking, hinge dragon transmission and snow sweeping work of the snow sweeper.

10. The stand-up zero-turn snow thrower of claim 8, wherein, One side of the operation panel (301) is provided with a buffer pad (29) vertically arranged on one side of the operation panel (301) and corresponding to the standing area (23).

11. The stand-up zero-turn snow thrower of claim 1, wherein, The power device (8) is arranged above the driving mechanism (5), one side of the driving mechanism (5) is provided with a belt pulley (30), and the power device (8) and the belt pulley (30) are connected through a belt to realize power transmission.

12. The stand-up zero-turn snow thrower of claim 1, wherein, The snow sweeping mechanism (2) is arranged on the front side of the driving mechanism (5) and connected with the power device (8).

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