CN115092238A - Snowmobile - Google Patents

Abstract

The application discloses a snowmobile, which comprises a frame component, a driving component, a front suspension assembly and a pair of skis; the driving assembly is arranged at the rear part of the frame assembly and is used for driving the snowmobile to run; the front suspension assembly is arranged on two sides of the front part of the frame and is respectively connected with the sled plate; when bumping, the driving component is suitable for extending and contracting along the bumping direction; at the same time, the front suspension assembly is adapted to deflect and drive the ski boards in a swinging motion toward or away from each other. The beneficial effect of this application: when jolting, the driving assembly can stretch out and draw back along the jolting direction to realize the shock attenuation, and then can reduce the range of jolting of frame subassembly to improve driver's driving experience. The front suspension assembly can deflect according to the received impact force and drives the ski board to swing, so that the limiting resistance can be generated in the vertical running direction to improve the land grabbing force of the snowmobile, and the snowmobile can be guaranteed to keep running stably when jolting to avoid sideslip.

Description

Snowmobile

Technical Field

The application relates to the field of driving tools, in particular to a snowmobile.

Background

A snowmobile is a special vehicle that can be used for snow rescue, transport and recreation. Generally, the snow sweeper is of a front sled and rear track structure and can move rapidly in the snowfield.

The structure of the existing snowmobile is simplified and designed in order to improve the maneuverability. Therefore, when the existing snowmobile is driven to run on the fluctuant snowfield at high speed, the bumpy condition with large fluctuation often occurs. Because the simplification of structure leads to current snowmobile shock attenuation effect relatively poor, causes the driver to carry out jolt by a relatively large margin along with the vehicle easily, and then influences driver's driving experience to, still probably throw away the driver outside the car and cause the incident when the speed of a motor vehicle is very fast.

Disclosure of Invention

One of the objects of the present application is to provide a snowmobile capable of improving the driving safety of a driver.

One of the objects of the present application is to provide a front suspension assembly capable of improving steering stability.

One of the objects of the present application is to provide a ski capable of improving driving stability.

One of the objects of the present application is to provide a steering assembly that can be conveniently operated.

One of the objects of the present application is to provide a drive assembly capable of improving driving stability.

One of the objects of the present application is to provide a frame assembly that improves steering stability.

In order to achieve at least one of the above purposes, the technical scheme adopted by the application is as follows: a snowmobile comprises a frame component, a driving component, a front suspension assembly and a pair of skis; the driving assembly is mounted at the rear part of the frame assembly and is used for driving the snowmobile to run; the front suspension assembly is arranged on two sides of the front part of the frame and is respectively connected with the ski board; when bumping, the driving component is suitable for extending and contracting along the bumping direction; meanwhile, the front suspension assembly is suitable for deflecting and driving the ski board to swing so as to improve the ground grabbing force of the snowmobile and further ensure the driving stability of the snowmobile.

Preferably, the drive assembly includes a drive member mounted to the frame assembly, a travel assembly and a track; the crawler belt is arranged on the driving component and is of a polygonal structure, and the driving component is connected with the driving part, so that the driving component can drive along the snow through the crawler belt under the driving of the driving part; when bumping, the driving assembly is suitable for driving the bottom edge of the crawler belt to stretch and retract along the bumping direction, and the perimeter of a polygonal structure formed by the crawler belt is kept unchanged.

Preferably, the driving assembly comprises at least one driving wheel, two driven wheels and a tensioning assembly; the driving wheel is rotatably arranged on the frame assembly, the two groups of driven wheels are connected through a connecting plate and are positioned at the lower part of the driving wheel, and the connecting plate is suitable for being connected with the frame assembly through the tensioning assembly; the crawler belt is sleeved on the driving wheel and the driven wheel to form a polygonal structure; when bumping, the driven wheel is suitable for shifting and rotating along the bumping direction under the driving of the tensioning assembly, so that the driving assembly can absorb shock and ensure that the track is always tensioned.

Preferably, the driving wheels are in a group, so that a triangular structure is formed between the driving wheels and the driven wheels through the crawler belts; or the two groups of driving wheels are arranged on the frame assembly at intervals, so that a quadrilateral structure is formed between the driving wheels and the driven wheels through the crawler belts.

Preferably, the tensioning assembly comprises at least one pair of elastic assemblies, each pair of elastic assemblies is arranged in an inverted splayed shape, the upper end of each elastic assembly is hinged with the frame assembly, and the lower end of each elastic assembly is hinged with the driven wheel; when bumping, the two elastic components of each pair deflect around the hinged position of the frame components along the bumping direction; meanwhile, in each pair of elastic components, the elastic component close to the bumping position stretches, and the elastic component far away from the bumping position contracts; thereby driving the driven wheel to shift and rotate along the bumping direction.

Preferably, the extension lines of the two elastic assemblies in each pair along the arrangement direction intersect with a connecting line between the two groups of driven wheels. When bumping, the driven wheel can drive the elastic component to extend and rotate along bumping direction.

Preferably, the two groups of driven wheels are correspondingly and rotatably mounted at two ends of the connecting plate, and the hinged position of the lower end of the elastic component and the connecting plate is located at the midpoint of the driving component.

Preferably, the elastic assembly comprises a telescopic rod and a spring, the upper end of the telescopic rod is hinged with the frame assembly, the lower end of the telescopic rod is hinged with the connecting plate, and the spring is sleeved on the telescopic rod and is respectively abutted and matched with the upper end and the lower end of the telescopic rod; when bumping, the telescopic rod is suitable for realizing the deformation of the spring through stretching, so that the running component can be damped.

Preferably, the driving part comprises a motor and a battery pack, the motor is mounted on the frame assembly and connected with the driving wheel through a transmission shaft, a battery compartment is arranged on the frame assembly, and the battery pack is mounted on the battery compartment to supply power to the motor.

Preferably, the snowmobile further comprises a steering assembly mounted at the front end of the frame assembly; the steering assembly comprises a driving part and a traction part; the driving part is arranged at the upper part of the frame assembly, and the traction part is rotatably arranged at the lower part of the frame assembly and is respectively connected with the ski boards at two sides; the driving part and the traction part are connected through a reversing structure; the driving part is suitable for driving the traction part to rotate circumferentially so as to drive the ski board to rotate synchronously, and further the driving direction of the snowmobile is adjusted; simultaneously, the drive division be suitable for through switching-over structure adjust with the contained angle between the frame subassembly to make things convenient for the user to use.

Preferably, the reversing structure comprises rotating seats arranged at the lower end of the driving part and the upper end of the traction part, and the driving part and the traction part are rotatably connected through the rotating seats; the driving part is suitable for rotating around the rotating seat so as to adjust an included angle between the driving part and the frame assembly; and after the included angle is adjusted, the rotating seat is locked through a fastening piece.

Preferably, the reversing structure comprises a universal coupling and a fixed seat; the fixed seat is rotatably arranged on the frame assembly, the driving part is rotatably connected with the fixed seat, and the lower end of the driving part is hinged with the upper end of the traction part through the universal coupling; the fixed seat is suitable for driving the driving part to rotate around the universal coupling so as to adjust the included angle, and the fixed seat is locked through a fastening piece after the adjustment is finished; the driving part is suitable for driving the traction part to drive the ski board to steer through circumferential rotation.

Preferably, the driving part is obliquely arranged, and the reversing structure comprises a universal coupling, a fixed seat and an adjusting part; the fixed seat is fixedly arranged on the frame assembly, and the upper end of the fixed seat is vertical to the driving part; the adjusting part is rotatably arranged at the upper end of the fixed seat and is connected with the lower end of the driving part through a rotating seat; the traction part is positioned at the lower end of the fixed seat and is connected with the adjusting part through a universal coupling; the driving part is suitable for adjusting the included angle by rotating around the adjusting part; meanwhile, the driving part is suitable for driving the adjusting part to pass through the universal coupling so as to drive the traction part to rotate circumferentially, and therefore steering control over the ski board is achieved.

Preferably, the traction part comprises a rotating shaft and a traction rod, the rotating shaft is vertically and rotatably connected with the frame assembly, the middle of the traction rod is fixedly connected with the lower end of the rotating shaft, and two ends of the traction rod are connected with the sled plate.

Preferably, the driving part comprises a handrail and a driving rod, the handrail is fixed at the upper end of the driving rod, the lower end of the driving rod is connected with the traction part through the reversing structure, and the handrail is operated to drive the driving rod to drive the traction part to rotate.

Preferably, the front suspension assembly comprises a support component and an elastic component which are arranged on two sides of the frame component; the upper end of the supporting component is hinged with the frame component, and the lower end of the supporting component is hinged with the sled plate; the upper end of the elastic component is hinged with the frame component, and the lower end of the elastic component is hinged with the support component; a four-bar mechanism is formed among the support assembly, the frame assembly and the ski board; when bumping, the support component is suitable for deflecting around the hinged position of the upper end, so as to drive the ski board to swing; meanwhile, the elastic component is suitable for elastic expansion along with the deflection of the supporting component, and therefore shock absorption is achieved.

Preferably, the elastic assembly comprises a telescopic rod and a spring, the upper end of the telescopic rod is hinged with the frame assembly, the lower end of the telescopic rod is hinged with the support assembly, and the spring is sleeved on the telescopic rod and abuts against the upper end and the lower end of the telescopic rod respectively; when bumping, the telescopic rod is suitable for realizing the deformation of the spring through stretching, and further can absorb shock of the supporting component.

Preferably, the support assembly comprises a first fork arm and a second fork arm, the upper ends of the first fork arm and the second fork arm are hinged with the frame assembly, and the lower ends of the first fork arm and the second fork arm are hinged with the sled plate; the first prong is positioned above the second prong, and the first prong and the second prong are different in length; when bumping, the first and second prongs pivot about the upper hinge to drive the ski to swing.

Preferably, the support assembly further comprises a connection assembly mounted to the ski board; the lower ends of the first fork arm and the second fork arm are hinged with the connecting component; when bumping, the first fork arm and the second fork arm deflect around the upper end hinge position to drive the connecting component to drive the ski board to swing.

Preferably, the lower end of the elastic component is hinged with the first fork arm, and the hinged positions of the elastic component and the upper end of the first fork arm are deviated; when bumping, the elastic component and the first fork arm are prevented from concentrically deflecting, and elastic shock absorption cannot be realized.

Preferably, the lower end of the elastic component is hinged with the second forked arm, and the hinged positions of the elastic component and the upper end of the second forked arm are deviated; so as to avoid the elastic component and the second fork arm from concentrically deflecting when bumping, and further the elastic shock absorption can not be realized.

Preferably, the lower end of the elastic component is hinged to the connecting component, and the elastic component is not aligned with the first fork arm and the second fork arm; so as to avoid the elastic component and the first fork arm or the second fork arm from concentrically deflecting when bumping, and further the elastic shock absorption can not be realized.

Preferably, the connecting assembly comprises a first connecting part and a pair of second connecting parts, wherein the lower end of the first connecting part is hinged with the sled plate so that the sled plate can swing back and forth; one side of the first connecting part is vertically provided with a pair of aligned second connecting parts, the second connecting parts are correspondingly and rotatably arranged on the second connecting parts, the second connecting part positioned on the upper part is hinged with the first fork arm, and the second connecting part positioned on the lower part is hinged with the second fork arm; the first connecting part is arranged at a position, deviated from the second connecting part, of the first connecting part, and the first connecting part and the traction part are subjected to spherical hinge, so that the steering and swinging processes of the ski board are not interfered.

Preferably, the frame component comprises a frame body and a base plate, and the driving component, the front suspension assembly and the steering component are all mounted on the frame body; the base plate is detachably covered on the upper end of the frame body, so that a driver can conveniently ride the bicycle.

Preferably, the rear portion of frame body is provided with the installing zone, the lower part in installing zone is used for installing the subassembly of traveling, the upper portion in installing zone is provided with the backup pad, the backup pad is used for supporting the backing plate, in order to improve the stability of backing plate, simultaneously the backup pad can also improve the bulk rigidity of frame body.

Preferably, the support plate is a single plate, and the extension length of the support plate is equal to the length of the mounting area.

Preferably, the supporting plate is a plurality of supporting plates which are arranged in the mounting area at equal intervals.

Preferably, the battery compartment is disposed at a front portion of the frame body.

Preferably, the front end and the rear end of the frame body are respectively detachably provided with a front anti-collision beam and a rear anti-collision beam, and the strength and the rigidity of the frame body can be effectively improved through the front anti-collision beam and the rear anti-collision beam.

Preferably, the front anti-collision beam and the rear anti-collision beam are arranged in an upward tilting mode.

Preferably, the snow board is installed to the rear end of frame body, the snow board is located the subassembly top of traveling, so that the in-process that the subassembly traveled, the snow board can be right the snow that the subassembly splashes of traveling blocks.

Preferably, the apron is installed to the front end of frame body, the apron is suitable for right the steering assembly carries out the cladding, and then can avoid the in-process of traveling, and snow is right the steering assembly blocks up.

Preferably, the upper end face of the ski board is fixedly provided with a connecting rib, and the ski board is suitable for being hinged to the connecting assembly through the connecting rib.

Preferably, the front part of the ski board is a flexible first snow blocking part which is arranged in a tilting mode; so that the snowmobile can compact the snow in front of the sleigh through the tilting of the first snow blocking part in the driving process.

Preferably, both sides of the first snow blocking part are obliquely arranged to reduce the running resistance of the snowmobile.

Preferably, the front end of the first snow blocking part is provided with an extension section, and the extension section is suitable for being bent in an arc shape to be close to the connecting rib and being fixedly connected, so that the supporting strength of the first snow blocking plate can be improved.

Preferably, the rear part of the ski board is a second snow retaining part which is arranged in a tilting manner; when bumping, the ski is suitable for supporting with the snow through the second snow retaining part, thereby preventing the ski from being inserted into the snow when bumping.

Compared with the prior art, the beneficial effect of this application lies in:

(1) when jolting, the driving assembly can stretch out and draw back along the direction of jolting and realize the shock attenuation, and then can reduce the range of jolting of frame subassembly to improve driver's driving experience.

(2) When jolting, the front suspension assembly can deflect according to the impact force that receives to drive the ski board and swing, thereby can produce the restriction resistance in vertical travel direction and improve the land fertility of grabbing of snowmobile, keep steadily going and avoid taking place to sideslip when taking place to jolt in order to guarantee the snowmobile.

(3) When jolting, the subassembly of traveling receives the impact force from the driving wheel after, and two sets of whole that can form through the connecting plate from the driving wheel squints and rotates under the driving of tensioning assembly, and then guarantees that the track is in the tensioning state all the time to guarantee that the subassembly of traveling can not take place to skid, and then improves snowmobile's the stability of traveling.

(4) Through connecting drive division and traction portion through the switching-over structure to when the driver of different sizes drives, can adapt to different drivers through the contained angle of adjusting drive division and frame subassembly, experience with the driving that improves the driver.

(5) Through carrying out reasonable distribution to each subassembly mounted position on the frame subassembly, can improve the stability of snowmobile's whole structure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the frame assembly of the present invention.

Fig. 3 is a partial structural schematic diagram of one embodiment of the driving assembly of the present invention.

FIG. 4 is a schematic diagram of the operation of one embodiment of the drive assembly of the present invention during travel.

Fig. 5 is a schematic view of another embodiment of the drive assembly of the present invention during operation.

FIG. 6 is a partial schematic view of a front suspension assembly of the present invention.

Fig. 7 is an enlarged view of the invention at the location of portion a in fig. 6.

Fig. 8 is a schematic view of a connection structure of the connection assembly and the first and second prongs.

Fig. 9 is a schematic view of the front suspension assembly of the present invention during operation.

Fig. 10 is a partial structural view of the steering assembly of the present invention.

FIG. 11 is a partial cross-sectional view of the steering assembly of the present invention.

Fig. 12 is a schematic view of the side view of the ski in the present invention.

FIG. 13 is a top view of the ski of the present invention.

In the figure: the vehicle body frame assembly comprises a vehicle frame assembly 1, a vehicle frame body 11, a mounting area 110, a support plate 111, a front impact beam 112, a rear impact beam 113, a fixed seat 114, a battery compartment 120, a base plate 12, a cover plate 13, a snow guard 14, a driving assembly 2, a driving wheel 21, a driven wheel 22, a crawler 23, a connecting plate 24, a front suspension assembly 3, a first yoke 31, a second yoke 32, a steering assembly 4, a rotating seat 400, a handrail 41, a driving rod 42, an adjusting component 43, a rotating shaft 44, a traction rod 45, a sled 5, a first snow guard 51, an extension 511, a connecting rib 52, a second snow guard 53, an elastic component 6, a telescopic rod 61, a first guide rod 611, a second guide rod 612, a spring 62, a connecting component 7, a first connecting part 71, a first connecting part 710, a second connecting part 711, a second connecting part 72 and a universal coupling 800.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

One of the preferred embodiments of the present application, as shown in fig. 1-13, is a snowmobile that includes a frame assembly 1, a drive assembly 2, a front suspension assembly 3, and a pair of skis 5. The driving assembly 2 is arranged at the rear part of the frame assembly 1 and is used for driving the snowmobile to run on the snowfield; the front suspension assembly 3 is mounted on both sides of the front portion of the vehicle frame and is connected to the ski plates 5, respectively. When bumping, the driving component 2 can extend and retract along the bumping direction to reduce the bumping amplitude of the frame component 1; meanwhile, the front suspension assembly 3 can deflect through the received impact force and drive the ski board to swing, so that the limiting resistance can be generated in the vertical running direction to improve the land grabbing force of the snowmobile, and the snowmobile can be guaranteed to keep running stably when jolting, and the occurrence of sideslip is avoided.

It can be understood that, in the process of running of the snowmobile, when bumping, the snowmobile is easy to sideslip due to the small friction force of the snowmobile, and then the running stability of the snowmobile is affected. Therefore, the bump vibration of the snowmobile can be reduced to a certain extent by the extension and contraction of the driving component 2 along the bump direction. Meanwhile, the grabbing force perpendicular to the driving direction can be formed between the sled board 5 and the snowfield through swinging, and then the limiting force can be generated in the sideslip direction of the snowmobile so as to reduce or avoid sideslip.

In the present embodiment, as shown in fig. 1 and 3 to 5, the drive assembly 2 includes a drive member mounted to the frame assembly 1, a travel assembly, and a crawler 23. The caterpillar track 23 is mounted to the travel assembly and is of a polygonal configuration, the travel assembly being connected to the drive member such that the travel assembly is driven by the drive member to travel along the snow by the bottom edge of the caterpillar track 23. When a bump occurs, the bottom edge of the ride module can flex in the direction of the bump and the perimeter of the polygonal configuration defined by the tracks 23 can be maintained.

It can be understood that when current track type snowmobile jolts and carries out the shock attenuation through shock-absorbing structure, snowmobile's track 23 is in the elastic state that lasts at the subassembly deformation shock attenuation in-process of traveling, and then takes place to travel the subassembly easily and take place to skid with track 23 to influence snowmobile's driving stability. In this embodiment, the driving assembly extends and retracts in the bumping direction, so that the circumference of the polygonal structure formed by the crawler 23 can be kept unchanged, that is, the crawler 23 is always kept in a tensioned state in the bumping process of the driving assembly.

Specifically, as shown in fig. 3 to 5, the driving assembly includes at least one driving wheel 21, two driven wheels 22 and a tensioning assembly. The driving wheel 21 is rotatably mounted on the frame assembly 1 through a rotating shaft, the two groups of driven wheels 22 are connected at intervals through a connecting plate 24 and are positioned at the lower part of the driving wheel 21, and the connecting plate 24 can be connected with the frame assembly 1 through a tensioning assembly. The caterpillar 23 is sequentially sleeved on the driving pulley 21 and the driven pulley 22 to form a polygonal structure. Thus, in the event of a jolt, the driven wheel 22 can simultaneously perform deflection and rotation in the jolt direction under the urging of the tensioning assembly, so that the driving assembly can absorb shock and ensure that the track 23 is always tensioned.

It can be understood that the driven wheel 22 rotates in the bumping direction, and can be used for absorbing bumping impact, so as to ensure that the impact force applied to the driving wheel 21 and the frame assembly 1 connected with the driving wheel 21 is reduced, thereby achieving shock absorption of bumping. The offset of the driven wheel 22 in the pitching direction ensures that the track 23 is always in a tensioned connection with the driving wheel 21 and the driven wheel 22 when the driven wheel 22 is deflected, so as to avoid the track 23 slipping.

In this embodiment, as shown in fig. 3 to 5, the tensioning assembly includes at least one pair of elastic assemblies 6, two elastic assemblies 6 of each pair are arranged in an inverted "eight" shape, the upper end of the elastic assembly 6 is hinged with the frame assembly 1, and the lower end of the elastic assembly 6 is hinged with the connecting plate 24. When bumping, the two elastic components 6 of each pair can deflect along the bumping direction around the hinging position with the frame component 1; meanwhile, in each pair of elastic components 6, the elastic component 6 close to the bumping position stretches, and the elastic component 6 far away from the bumping position contracts; which in turn drives the connecting plate 24 to displace and rotate the driven wheel 22 in the pitching direction.

It is to be understood that the specific operation of the travel assembly may be described for ease of understanding. For convenience of description, one set of driven wheels 22 located forward in the traveling direction may be set as a first driven wheel, and the other set of driven wheels 22 may be a second driven wheel; while the elastic element 6 near the front in the direction of travel is the first elastic element, the other elastic element is the second elastic element.

The tensioning sections of the two groups of driven wheels 22 for the crawler 23 are the bottom edges of a polygonal structure, and the snowmobile can drive on the snowfield through the tensioning sections of the two groups of driven wheels 22 for the crawler 23.

When the snowmobile runs to an undulating road surface, the first driven wheel firstly passes through the undulating road surface, so that the first driven wheel is subjected to an upward impact force which deviates from the running direction, the vertical component of the impact force can drive the first driven wheel to rotate by taking the second driven wheel as the center of a circle and taking the connecting plate 24 as the radius. And during rotation of the first driven wheel, the impact force may be transmitted to the elastic assembly 6 through the connecting plate 24. According to the incline direction difference of elastic component 6, first elastic component can carry out the rotation around upper end hinge position under the effect of impact to in-process rotates, according to the position change of connecting plate 24, can extend simultaneously. The second elastic assembly contracts under the impact force and the elastic force of the first elastic assembly, so that the two groups of driven wheels 22 can horizontally move away from the driving direction according to the horizontal component of the impact force and the horizontal component of the elastic force of the first elastic assembly; in the process, the second elastic component can synchronously rotate along the bumping direction.

I.e. the whole formed by the connecting plate 24 of the two driven wheels 22 performs a compound movement of moving and rotating simultaneously at the moment of bumping. Therefore, the length of the side adjacent to the bottom edge and located in front of the driving direction in the polygonal structure is shortened, and the length of the side adjacent to the bottom edge and located behind the driving direction in the polygonal structure is extended, so that the circumference of the track 23 in the bumping process through the polygonal structure formed by tensioning the driving wheel 21 and the driven wheel 22 can be kept unchanged, namely the track 23 is always tensioned in the bumping process.

As the snowmobile continues to travel and the undulation position of the snowmobile is located before the midpoint position of the connecting plate 24, the angle of rotation of the first driven wheel around the second driven wheel continuously increases, and simultaneously the horizontal movement distance of the whole formed by the two groups of driven wheels 22 and the connecting plate 24, which deviates from the traveling direction, gradually increases; the first elastic component and the second elastic component synchronously change in an adaptive manner.

As the snowmobile continues to travel, the movement of the first and second elastic assemblies and of the driven wheel 22 in the horizontal direction remains unchanged at the instant when the undulation position of the snow crosses the position of the midpoint of the connecting plate 24; however, the whole formed by the driven wheels 22 and the connecting plate 24 performs reverse rotation with the undulating position as a fulcrum, so that the first driven wheel is in contact with the snow and the second driven wheel is lifted; and during subsequent driving, the two sets of driven wheels 22 and the first and second elastic assemblies are reset towards the initial state.

In this embodiment, the extension lines of the two elastic assemblies 6 in each pair in the arrangement direction intersect with the connecting line between the two sets of driven wheels 22. Therefore, the driven wheel 22 can be ensured to be impacted to drive the elastic component 6 to extend and rotate along the bumping direction when bumping occurs.

It can be understood that the extension lines of the elastic component 6 along the setting direction are all intersected with the connection line between the two sets of the driven wheels 22, so that the impact force applied to the driven wheels 22 can be guaranteed to be always staggered with the extension direction of the elastic component 6, and further the elastic component 6 can be smoothly stressed.

In this embodiment, as shown in fig. 3 to 5, two sets of driven wheels 22 are correspondingly rotatably mounted at two ends of the connecting plate 24, the lower end of the elastic component 6 is hinged to the connecting plate 24, and the hinged position of the elastic component 6 and the connecting plate 24 is located at the midpoint of the whole driving component, so that the supporting stability of the elastic component 6 for the driven wheels 22 can be improved.

In this embodiment, as shown in fig. 3, the elastic component 6 includes an expansion link 61 and a spring 62, the upper end of the expansion link 61 is hinged to the frame component 1, the lower end of the expansion link 61 is hinged to the connection plate 24, and the spring 62 is sleeved on the expansion link 61 and is respectively abutted to and matched with the upper end and the lower end of the expansion link 61. When bumping, the telescopic rod 61 can be extended and retracted to realize the deformation of the spring 62, so that the traveling component can be damped.

Specifically, as shown in fig. 3, the telescopic rod 61 includes a first guide rod 611 and a second guide rod 612, the first guide rod 611 and the second guide rod 612 are connected in a sliding manner, an upper end of the first guide rod 611 is hinged to the frame assembly 1, a lower end of the second guide rod 612 is hinged to the connecting plate 24, one end of the spring 62 abuts against the first guide rod 611, and the other end of the spring 62 abuts against the second guide rod 612. So that the first guide rod 611 and the second guide rod 612 relatively slide when the bumping occurs, thereby achieving the elastic deformation of the spring 62 for shock absorption.

In this embodiment, the specific number of the groups of the driving wheels 21 is provided in multiple groups, including but not limited to the following two.

First, as shown in fig. 5, the driving wheels 21 are grouped, so that a triangular structure can be formed between the driving wheels 21 and the driven wheels 22 through the caterpillar tracks 23. The two driven wheels 22 can be moved horizontally away from the direction of travel by means of a connecting plate 24, in order to

In the second mode, as shown in fig. 4, two sets of driving wheels 21 are provided, and the two sets of driving wheels 21 are installed on the frame assembly 1 at intervals, so that a quadrilateral structure is formed between the driving wheels 21 and the driven wheels 22 through the caterpillar tracks 23.

In the present embodiment, the driving means for the traveling unit is various. For example, the driving component is an engine, and the engine is mounted on the frame assembly 1 and connected with the rotating shaft of the driving wheel 21 through a transmission shaft, so that the snowmobile can be driven to run. For another example, the driving component includes a motor and a battery pack, the motor is mounted on the frame assembly 1 and connected with the rotating shaft of the driving wheel 21 through a transmission shaft, a battery compartment 120 is provided on the frame assembly 1, and the battery pack is mounted on the battery compartment 120 for supplying power to the motor, so that the snowmobile can be driven to run.

In one embodiment of the present application, as shown in fig. 1, 10 and 11, the snowmobile further includes a steering assembly 4 mounted to the front end of the frame assembly 1. The steering assembly 4 comprises a drive portion and a traction portion; the driving part is arranged at the upper part of the frame component 1, and the traction part is rotatably arranged at the lower part of the frame component 1 and is respectively connected with the sledges 5 at the two sides; the driving part and the traction part are connected through a reversing structure; the driving part is suitable for driving the traction part to rotate circumferentially so as to drive the ski board 5 to rotate synchronously, and further the driving direction of the snowmobile is adjusted; meanwhile, the driving part can also adjust an included angle between the driving part and the frame assembly 1 through the reversing structure so as to be convenient for a user to use.

It can be understood that, because everyone's height and size are different, so, everyone's driving habit is different, and the user that can adapt to different driving habits of the snowmobile of this application for convenience uses, can set up the switching-over structure and carry out the connection of drive division and traction part. Thereby can adjust the contained angle between drive division and the frame subassembly 1 through the switching-over structure in order to adapt to the user of different driving habits, can also guarantee the connection stability between drive division and the traction part simultaneously.

In this embodiment, the specific structure of the reversing structure is various, including but not limited to the following two.

As shown in fig. 10 and 11, the reversing structure includes a rotating base 400 disposed at a lower end of the driving portion and an upper end of the traction portion, and the driving portion and the traction portion are rotatably connected by the rotating base 400. Thereby when carrying out the contained angle regulation of drive division and frame subassembly 1, the user can revolute rotation seat 400 with the drive division and rotate, and the contained angle that reaches between drive division and the frame subassembly 1 satisfies user's driving habit, can lock rotation seat 400 through the fastener afterwards.

In the second structure, as shown in fig. 10 and 11, the reversing structure includes a universal joint 800 and a fixing base 114; the fixing seat 114 is rotatably mounted on the frame assembly 1, the driving portion is rotatably connected with the fixing seat 114, and the lower end of the driving portion is hinged to the upper end of the traction portion through a universal coupling 800. When the user needs to adjust the included angle between the driving part and the frame assembly 1, the user can rotate the fixing seat 114 around the installation position, and then drive the driving part and the upper part of the universal coupling 800 to synchronously rotate until the included angle between the driving part and the frame assembly 1 meets the driving habit of the user, and then the fixing seat 114 can be locked through the fastening piece.

It can be understood that the driving part drives the traction part to rotate mainly in two ways. In the first mode, the driving part drives the traction part to rotate circumferentially by swinging around the circumference of the traction part. In a second mode, the driving part can drive the traction part to rotate through rotation around the axis of the driving part. For the first mode, a reversing structure of the first structure is generally adopted; for the second mode, a commutation structure of the second structure is generally adopted.

In this embodiment, as shown in fig. 1, 10 and 11, the driving portion is disposed obliquely, and the reversing structure includes a universal joint 800, a fixing base 114 and an adjusting member 43. The fixing base 114 is fixedly installed on the frame assembly 1, and the upper end of the fixing base 114 is perpendicular to the driving portion. The adjusting member 43 is rotatably mounted to the upper end of the fixed base 114 and is connected to the lower end of the driving part through a rotating base 400. The traction portion is located at the lower end of the fixed seat 114 and is connected with the adjusting component 43 through a universal joint 800. When a user needs to adjust the included angle between the driving portion and the frame assembly 1, the driving portion can be driven to swing around the adjusting part 43 so as to drive the adjusting part 43 to rotate around the circumference of the axis of the driving portion, and then the traction portion is driven to rotate around the circumference of the axis of the driving portion through the universal coupling 800, so that the driving direction of the snowmobile can be controlled.

It will be appreciated that the initial state of the drive portion is a particular angle of tilt setting that is already satisfactory for normal use by most users. Therefore, the fixing base 114 is fixedly installed, and the upper end surface of the fixing base 114 is perpendicular to the driving part, so that the stability of the installation structure of the driving part can be ensured by the fixing base 114 which is fixedly arranged. On the basis, in order to meet the angle adjustment of a small part of people, the adjusting part 43 can be arranged to be connected with the driving part through the fastenable rotating seat 400, so that the use of a specific group of people is met.

In this embodiment, as shown in fig. 6, 7, 10 and 11, the towing part includes a rotating shaft 44 and a towing bar 45, the rotating shaft 44 is vertically and rotatably connected to the frame assembly 1, the middle part of the towing bar 45 is fixedly connected to the lower end of the rotating shaft 44, and both ends of the towing bar 45 are connected to the skis 5, so that the driving part can drive the rotating shaft 44 to rotate circumferentially to drive the towing bar 45 to drive the skis 5 to rotate around the front suspension assembly, so as to control the driving direction of the snowmobile.

In this embodiment, as shown in fig. 1, 10 and 11, the driving portion includes a handrail 41 and a driving rod 42, the handrail 41 is fixed at the upper end of the driving rod 42, the lower end of the driving rod 42 is connected with the traction portion through a reversing structure, and then, during the driving process, a user can drive the driving rod 42 to drive the traction portion to rotate by operating the handrail 41.

In one embodiment of the present application, as shown in fig. 6 to 9, the front suspension assembly 3 includes a support member and an elastic member 6 disposed on both sides of the frame member 1; the upper end of the supporting component is hinged with the frame component 1, and the lower end of the supporting component is hinged with the sleigh plate 5; the upper end of the elastic component 6 is hinged with the frame component 1, and the lower end of the elastic component 6 is hinged with the supporting component; the support assembly forms a four-bar mechanism with the frame assembly 1 and the ski 5. When bumping, the supporting component can deflect around the hinged position of the upper end, so as to drive the corresponding sled plate 5 to swing; meanwhile, the elastic component 6 can elastically stretch along with the deflection of the supporting component, so that the shock absorption is realized.

It will be appreciated that there are two main types of snowmobiles that are subject to jolting. Firstly, in the running process of the snowmobile, the ski board 5 bumps through the fluctuating snow surface; secondly, in the running process of the snowmobile, the running component bumps through the undulating snowfield.

As shown in fig. 9, when the ski 5 bumps on a rough snowfield, the ski 5 drives the supporting component to deflect around the upper end hinge under the impact force, and then the ski 5 is driven to synchronously swing through the deflection of the supporting component, so that the ski 5 changes from a state parallel to the snowfield to a state inclined to the snowfield, and the ski 5 can be obliquely inserted into the snowfield. So that a resistance perpendicular to the direction of travel can be generated to the ski 5 by the snowfield to avoid the snowmobile from skidding.

When the running component bumps, the snowmobile is in an up-and-down fluctuating state, so that the supporting components on two sides of the frame component 1 can synchronously deflect around the upper end, and then the sled plates 5 on two sides of the frame component 1 are driven to synchronously swing in the opposite direction or in the back direction, so that a splayed structure is formed and inserted into the snowmobile. Thereby can produce the resistance of perpendicular to direction of travel and point to the snowmobile through snowfield to sleigh 5, and then can avoid the snowmobile to jolt and go the in-process and take place to sideslip.

Can be illustrated by parameters, such asAs shown in fig. 9, when the ski 5 is in a horizontal state, the pressure F of the ski 5 against the snow is vertically downward, so that the snow can generate equal and opposite supporting forces for balancing the weight of the snowmobile, and the resistance F of the snow to the snowmobile deviating from the driving direction is equal to μ F, where μ is the coefficient of friction between the snow and the ski. When the ski 5 swings, the pressure of the ski 5 on the snow can be decomposed into a horizontal force F ₁ And a vertical force F ₂ At this time, the resistance F of the snowfield to the snowmobile deviating from the driving direction is equal to μ F ₂ +F ₁ 。

It will be appreciated that as the snowmobile travels over snow, the snow over which the snowmobile travels is compacted under the pressure of the snowmobile, so that as the snowmobile bumps, the inclination of the ski 5 can be effectively impeded by the compacted snow deviating from the direction of travel, i.e. F ₁ In practice this is basically achieved.

In this embodiment, as shown in fig. 6, the elastic component 6 includes an expansion link 61 and a spring 62, the upper end of the expansion link 61 is hinged to the frame component 1, the lower end of the expansion link 61 is hinged to the support component, and the spring 62 is sleeved on the expansion link 61 and abuts against the upper end and the lower end of the expansion link 61 respectively. When jolting, the telescopic rod 61 can be stretched to realize the deformation of the spring 62, and then can absorb the jolt of the snowmobile.

Specifically, as shown in fig. 6, the telescopic rod 61 includes a first guide rod 611 and a second guide rod 612, the first guide rod 611 and the second guide rod 612 are connected in a sliding manner, the upper end of the first guide rod 611 is hinged to the frame assembly 1, the lower end of the second guide rod 612 is hinged to the support assembly, one end of the spring 62 abuts against the first guide rod 611, and the other end of the spring 62 abuts against the second guide rod 612. So that the first guide rod 611 and the second guide rod 612 relatively slide when the bumping occurs, thereby achieving the elastic deformation of the spring 62 for shock absorption.

In the present embodiment, as shown in fig. 6 and 9, the support assembly includes a first fork arm 31 and a second fork arm 32, the upper ends of the first fork arm 31 and the second fork arm 32 are hinged to the frame assembly 1, and the lower ends of the first fork arm 31 and the second fork arm 32 are hinged to the sled 5; first prong 31 is positioned above second prong 32, and first prong 31 and second prong 32 are of different lengths. Thus, in the event of a pitch, the first and second forks 31, 32 will pivot the ski 5 by pivoting about the upper hinge point.

It will be appreciated that when the first and second prongs 31, 32 are mounted, the upper and lower ends of the first and second prongs 31, 32 are generally vertically flush. If the first fork arm 31 and the second fork arm 32 have the same length, a four-bar linkage in the shape of a parallelogram can be formed between the first fork arm 31, the second fork arm 32, the frame assembly 1, and the ski 5, and when the first fork arm 31 and the second fork arm 32 are deflected around the upper ends, the ski 5 is moved up or down synchronously in a horizontal posture, so that the snowmobile is liable to sideslip during jounce. In the application, the first fork arm 31 and the second fork arm 32 are arranged in different lengths, so that when the first fork arm 31 and the second fork arm 32 deflect, the ski board 5 can be driven to obliquely swing while moving upwards or downwards, and then resistance perpendicular to the driving direction can be generated between the ski board and the snow, so that the snow can be prevented from sideslipping when bumpy and driving.

It will also be appreciated that if the first prong 31 and the second prong 32 are of equal length, the ski 5 can be tilted while the first prong 31 and the second prong 32 are deflected, by positioning at least one section of the first prong 31 and the second prong 32 non-flush in the vertical direction.

In this embodiment, as shown in fig. 7 and 8, the supporting assembly further includes a connecting assembly 7, and the connecting assembly 7 is mounted on the ski board 5; the lower ends of the first and second prongs 31, 32 are each hinged to the connection assembly 7. When bumping, the first fork arm 31 and the second fork arm 32 will pivot the connecting member 7 to swing the ski 5 by deflecting around the upper hinge point. Meanwhile, the traction part is also connected with the ski 5 through the connecting component 7, so that the oblique swing of the ski 5 can be ensured not to interfere with the traction part.

It will be appreciated that the ski 5, driven by the traction unit, may be rotated in the horizontal plane to control the steering of the snowmobile. When the front suspension assembly 3 bumps, the swing direction of the ski board 5 is the swing in the vertical direction. If the traction unit and the first and second yokes 31 and 32 are directly connected to the ski 5, the tilting of the ski 5 interferes with the connection of the traction unit. Therefore, the occurrence of interference can be avoided by arranging the connecting component 7.

Specifically, as shown in fig. 7 and 8, the connecting assembly 7 includes a first connecting member 71 and a pair of second connecting members 72, and the lower end of the first connecting member 71 is hinged to the ski 5 so that the ski 5 can swing back and forth. One side of the first connecting part 71 is vertically provided with a pair of aligned second connecting parts 711, the second connecting part 72 is vertically and rotatably mounted on the second connecting parts 711, the second connecting part 72 at the upper part is horizontally hinged with the first fork arm 31, and the second connecting part 72 at the lower part is horizontally hinged with the second fork arm 32. Meanwhile, the first connection part 710 is provided at a position of the first connection part 71 offset from the second connection part 711, and the first connection part 710 is ball-hinged to the drawbar 45, so that the steering and swinging processes of the ski 5 are not interfered.

It can be understood that, when the subassembly of traveling takes place to jolt, the snowmobile is whole to be the state of fore-and-aft movement, and through the articulated of first connecting portion 71 and sled board 5, can guarantee that snowmobile is carrying out the in-process of fore-and-aft movement, sled board 5 keeps the parallel and level in the fore-and-aft direction, and then improves the stability of traveling of snowmobile.

When the first prong 31 and the second prong 32 are deflected, the sled 5 can be tilted by the two second connecting members 72 rotating around the lower ends of the first prong 31 and the second prong 32, respectively, to swing the sled 5. In the process, the first connecting part 71 can rotate with the ski 5 about the position of the first connecting part 711, which is spherically hinged with the traction plate 45. It is further ensured that the drawbar 45 does not interfere with the first coupling member 71.

When the snowmobile needs to be steered, the rotation shaft 44 rotates to drive the traction rod 45 to pull the ski board 5 to rotate around the second connecting component 72 to vertically rotate the mounting position, so that the direction of the snowmobile is controlled.

In this embodiment, the elastic member 6 is mounted in various ways, including but not limited to the following three ways.

The first method is as follows: the lower end of the elastic component 6 is hinged with the first fork arm 31, and the hinged positions of the elastic component 6 and the upper end of the first fork arm 31 are deviated. So that when bumping, the elastic component 6 and the first yoke 31 can be prevented from concentrically deflecting, and thus elastic shock absorption can not be realized.

The second method comprises the following steps: the lower end of elastic member 6 is hinged to second prong 32, and the hinged positions of elastic member 6 and the upper end of second prong 32 are offset. So that when bumping, the elastic component 6 and the second fork arm 32 can be prevented from concentrically deflecting, and thus elastic shock absorption can not be realized.

The third method comprises the following steps: the lower end of the elastic member 6 is hinged to the connecting member 7, and the elastic member 6 is not aligned with the first prong 31 and the second prong 32. So that, in the event of a jolt, a concentric deflection of the spring assembly 6 and the first prong 31 or the second prong 32 can be avoided, and thus no elastic damping can be achieved.

It will be appreciated that the specific manner of mounting of the resilient member 6 can be selected by the person skilled in the art according to the actual requirements. Preferably, as shown in fig. 6, the upper end of the elastic component 6 is hinged with the frame component 1 and is flush with the upper end of the first fork arm 31; the lower end of the resilient member 6 is hingedly connected to the end of the second prong 32 adjacent the connecting member 7.

In one embodiment of the present application, as shown in fig. 1 and 2, a frame assembly 1 includes a frame body 11 and a pad 12. The driving component 2, the front suspension assembly 3 and the steering component 4 are all arranged on the frame body 11; the backing plate 12 is detachably covered on the upper end of the frame body 11 so as to be convenient for a driver to ride.

It can be understood that the frame body 1 and the backing plate 12 are detachably mounted, so that the assembly and the processing can be conveniently carried out.

In this embodiment, as shown in fig. 2, the rear portion of the frame body 11 is provided with an installation area 110, a lower portion of the installation area 110 is used for installing a driving component, an upper portion of the installation area 110 is provided with a support plate 111, the support plate 111 is used for supporting the pad 12, so as to improve the stability of the frame body 1 to the pad 12, and the support plate 111 can also improve the overall rigidity of the frame body 11.

It is understood that the support plate 111 may be one piece, and the support plate 111 may extend approximately equal to the length of the mounting region 110. Therefore, the mounting area 110 can be completely covered, and the support strength of the backing plate 12 and the overall rigidity of the frame body 11 are effectively improved. As shown in fig. 2, there may be a plurality of support plates 111, and the plurality of support plates 111 are disposed in the mounting area 110 at equal intervals. The overall coverage of the installation area 110 is achieved by a plurality of support plates 111.

In this embodiment, as shown in fig. 2, the battery compartment 120 is disposed at the front of the frame body 11 for accommodating a battery pack. Can carry out reasonable distribution to drive assembly 2's overall structure through battery compartment 120 and installing zone 110, and then guarantee drive assembly 2's whole total amount equipartition in frame body 11 to can improve snowmobile's the stability of traveling.

It can be appreciated that if the mass distribution of the snowmobile is uneven, insufficient grip tends to occur at lighter weight locations, resulting in slippage.

In this embodiment, as shown in fig. 2, the front end and the rear end of the frame body 11 are detachably mounted with the front impact beam 112 and the rear impact beam 113, respectively, and the strength and the rigidity of the frame body 11 can be effectively improved by the front impact beam 112 and the rear impact beam 113.

It can be understood that the overall structure of the frame body 11 is formed by connecting two transverse frames and a plurality of longitudinal frames through bolts or welding. The front anti-collision beam 112 and the rear anti-collision beam 113 which are integrally and completely formed are used for connecting the front ends and the rear ends of the two cross beams respectively, the overall rigidity of the frame body 11 can be effectively improved, so that when bumping, the fatigue wear degree of the welding or bolting positions of the cross beams and the longitudinal beams can be reduced, the service life of the frame body 11 is further ensured, and meanwhile, the driving stability of the frame assembly 1 can be improved.

In this embodiment, as shown in fig. 1, a snow guard 14 is installed at the rear end of the frame body 11, and the snow guard 14 is located above the traveling assembly, so that in the traveling process of the traveling assembly, the snow guard 14 can stop snow splashed by the traveling assembly.

In this embodiment, as shown in fig. 1, a cover plate 13 is installed at the front end of the frame body 11, and the cover plate 13 is suitable for covering the steering assembly 4, so that the snow can be prevented from blocking the steering assembly 4 in the driving process.

In this embodiment, as shown in fig. 2, both the front impact beam 112 and the rear impact beam 113 are tilted upward. The front anti-collision beam 112 can protect the front cover plate 13 through the tilting structure, and when the front anti-collision beam 112 collides, the force of the collision can be decomposed into horizontal force and vertical force, so that the damage of the collision impact force to a driver can be reduced. The tilting of the rear anti-collision beam 113 can also facilitate the driver to lift up when the snowmobile encounters a driving obstacle while preventing collision. So that the tilt angle of the front impact beam 112 and the rear impact beam 113 may be preferably 30 ° to 45 ° according to the ergonomics.

In one embodiment of the present application, as shown in fig. 12 and 13, a connecting rib 52 is fixedly disposed on the upper end surface of the ski 5, and the ski 5 can be hinged to the connecting assembly 7 through the connecting rib 52.

It can be understood that the overall structural strength of the ski board 5 can be increased by the connecting ribs 52, and meanwhile, the bolt hole processing can be conveniently carried out by the connection of the connecting ribs 52 and the connecting assembly 7. The number of the connecting ribs 52 is at least one, preferably two, and the two connecting members 52 are symmetrically arranged.

In the present embodiment, as shown in fig. 12 and 13, the front portion of the sled 5 is a flexible first snow guard 51, and the first snow guard 51 is tilted. So that the snowmobile can compact the snow in front of the skis 5 by tilting the first snow blocking part 51 in the driving process, thereby ensuring the normal driving of the snowmobile.

It will be appreciated that the snow height in front of the ski 5 is always above the ski 5, under the weight of the snowmobile. Therefore, in the running process of the snowmobile, the snow cover in front of the snowboard 5 can be compacted below the snowboard 5 through the raised first snow blocking part 51, and the running stability of the snowmobile is further ensured. Meanwhile, the first snow-blocking portion 51 is tilted, so that an obstacle can be prevented from directly impacting the ski 5. Preferably, the first snow guard portion 51 has a tilting angle of 20 ° to 45 °.

In the present embodiment, as shown in fig. 13, both sides of the first snow guard 51 are disposed obliquely, that is, the width of the first snow guard 51 is narrower at a position closer to the end.

It can be understood that the accumulated snow in the snow is easy to block, so that when the snowmobile is running, the raised first snow blocking part 51 may cause the blocked accumulated snow to slide to two sides in the process of pressing the snow in front of the ski board 5, and further cause the accumulated snow in front of the ski board 5 to be less, so that the snowmobile runs in a small bump. The two sides of the first snow retaining parts 51 are obliquely arranged, so that the first snow retaining parts 51 are provided with tips, the accumulated snow on the blocks can be broken by the tips of the first snow retaining parts 51 in the running process of the snowmobile, and the snow on the compacted snow can be kept flat. Preferably, the first snow guard portion 51 is inclined at both sides thereof at an angle of 15 ° to 30 °.

In this embodiment, as shown in fig. 12 and 13, the front end of the first snow guard 51 is provided with an extension 511, and the extension 511 can be curved to be close to the connecting rib 52 and fixedly connected, so that the supporting strength of the first snow guard 14 can be improved.

It can be understood that, in the process of snowmobile driving, first snow-blocking portion 51 receives the impact force of snow, can continue ascending perk, and then can increase the snow-blocking area of first snow-blocking portion 51, has increased the running resistance of snowmobile promptly to through extension rod 511, can reduce the perk degree of first snow-blocking portion 51. Meanwhile, when the first snow guard 51 hits an obstacle, the amount of deformation of the first snow guard 51 caused by the impact of the obstacle can be reduced by the connection of the extension 511, thereby improving the structural stability of the ski 5.

In the present embodiment, as shown in fig. 12 and 13, the rear portion of the ski 5 is provided with the second snow retaining portion 52, and the second snow retaining portion 52 is tilted; when the ski 5 bumps, the ski 5 can be supported by the second snow guard 52 and the snow, so that the ski 5 can be prevented from being inserted into the snow during the bump.

It can be understood that when the sled plate 5 bumps against an obstacle, the sled plate 5 may fluctuate back and forth, and further, the tilted first snow retaining portion 51 and the tilted second snow retaining portion 52 can ensure that the front and rear sections of the sled plate 5 cannot be inserted into the compacted snow during fluctuation.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. A snowmobile, comprising:

a frame assembly;

the driving assembly is mounted at the rear part of the frame assembly and is used for driving the snowmobile to run;

the front suspension assembly is arranged on two sides of the front part of the frame; and

the pair of skis are positioned on two sides of the frame assembly and are respectively connected with the front suspension assembly;

when bumping, the driving component is suitable for extending and contracting along the bumping direction; at the same time, the front suspension assembly is adapted to deflect and drive the ski to swing.

2. The snowmobile of claim 1, wherein: the drive assembly comprises a drive component arranged on the frame assembly, a running assembly and a crawler; the crawler belt is arranged on the driving component and is of a polygonal structure, and the driving component is connected with the driving part, so that the driving component can drive along the snow through the crawler belt under the driving of the driving part; when bumping, the driving assembly is suitable for driving the bottom edge of the crawler belt to stretch and retract along the bumping direction, and the perimeter of a polygonal structure formed by the crawler belt is kept unchanged.

3. The snowmobile of claim 2, wherein: the driving assembly comprises at least one driving wheel, two driven wheels and a tensioning assembly; the driving wheel is rotatably arranged on the frame assembly, the two groups of driven wheels are connected through a connecting plate and are positioned at the lower part of the driving wheel, and the connecting plate is suitable for being connected with the frame assembly through the tensioning assembly; the crawler belt is sleeved on the driving wheel and the driven wheel to form a polygonal structure; when a bump occurs, the driven wheel is suitable for deviation and rotation along the bump direction under the driving of the tensioning assembly.

4. The snowmobile of claim 3, wherein: the tensioning assembly comprises at least one pair of elastic assemblies, the two elastic assemblies of each pair are arranged in an inverted splayed shape, the upper ends of the elastic assemblies are hinged with the frame assembly, and the lower ends of the elastic assemblies are hinged with the connecting plate; when bumping, the two elastic components of each pair deflect around the hinged position of the frame components along the bumping direction; meanwhile, in each pair of elastic components, the elastic component close to the bumping position stretches, and the elastic component far away from the bumping position contracts; thereby driving the driven wheel to shift and rotate along the bumping direction.

5. The snowmobile of any one of claims 1-4, wherein: the snowmobile further comprises a steering assembly mounted at the front end of the frame assembly, the steering assembly being adapted to adjust the direction of travel of the snowmobile by driving the ski; the steering assembly comprises a driving part and a traction part; the driving part is arranged at the upper part of the frame assembly, and the traction part is rotatably arranged at the lower part of the frame assembly and is respectively connected with the ski boards at two sides; the driving part is connected with the traction part through a reversing structure, so that the driving part is adjusted through the reversing structure to form an included angle between the frame components.

6. The snowmobile of claim 5, wherein: the reversing structure comprises rotating seats arranged at the lower end of the driving part and the upper end of the traction part, and the driving part and the traction part are in rotating connection through the rotating seats; the driving part is suitable for rotating around the rotating seat so as to adjust an included angle between the driving part and the frame assembly; and after the included angle is adjusted, the rotating seat is locked through a fastening piece.

7. The snowmobile of claim 5, wherein: the front suspension assembly comprises a support component and an elastic component which are arranged on two sides of the frame component; the upper ends of the support assembly and the elastic assembly are hinged with the frame assembly, the lower end of the support assembly is hinged with the sled plate, and the lower end of the elastic assembly is hinged with the support assembly; a four-bar mechanism is formed among the support assembly, the frame assembly and the ski board; when bumping, the supporting component is suitable for deflecting around the hinged position of the upper end, so as to drive the ski board to swing; meanwhile, the elastic component is suitable for elastically stretching along with the deflection of the supporting component.

8. The snowmobile of claim 7, wherein: the support assembly comprises a first fork arm and a second fork arm, the upper ends of the first fork arm and the second fork arm are hinged with the frame assembly, and the lower ends of the first fork arm and the second fork arm are hinged with the sled plate; the first prong is positioned above the second prong, and the first prong and the second prong are different in length; when a bump occurs, the first and second prongs deflect about the upper hinge point to propel the ski into a swing.

9. The snowmobile of claim 8, wherein: the support assembly further comprises a connection assembly mounted to the ski board; the lower ends of the first fork arm and the second fork arm are hinged with the connecting component; when bumping, the first fork arm and the second fork arm deflect around the upper end hinge position to drive the connecting component to drive the ski board to swing.

10. The snowmobile of claim 9, wherein: the connecting assembly comprises a first connecting part and a pair of second connecting parts, and the lower end of the first connecting part is hinged with the sled plate so that the sled plate can swing back and forth; one side of the first connecting part is vertically provided with a pair of aligned second connecting parts, the second connecting parts are correspondingly and rotatably mounted on the second connecting parts, the second connecting part positioned on the upper part is hinged with the first fork arm, and the second connecting part positioned on the lower part is hinged with the second fork arm; the first connecting part is provided with a first connecting part at a position deviating from the second connecting part, and the first connecting part and the traction part are subjected to spherical hinge.

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