CN201941937U - Snowfield bicycle - Google Patents

Abstract

The utility model discloses a snowfield bicycle, it includes slide device, strutting arrangement, drive arrangement, the lower extreme of wheel hub connection rear fork of drive wheel, the upper end and the main frame of rear fork are articulated, and the luffing motion of certain range can be done around the pin joint to the rear fork, and the rear fork swings together with the whole of drive wheel, rear sprocket, take-up pulley, chain constitution. An elastic limiting device is arranged between the rear fork and the rear frame, the two sides of the rear frame are fixedly provided with support rods extending downwards, one end of the elastic limiting device is fixedly connected with the rear fork, the other end of the elastic limiting device is fixedly connected with the support rods of the rear frame, and the rear fork is limited by the elastic limiting device when swinging around a hinged point. The rear fork of the snowfield bicycle can drive the driving wheel to swing up and down, the driving wheel lands when the pedal is pedaled to provide power for advancing, the driving wheel leaves the ground when sliding, resistance is not generated to the ground, the sliding capacity is greatly enhanced, and therefore physical energy consumption is reduced.

Description

snow bike

technical field

The utility model belongs to bicycles, in particular to a snow bicycle suitable for riding and gliding on snow fields.

Background technique

Snow bike is a kind of vehicle on snow, which can move forward smoothly on snow-covered roads. It is a tool for entertainment, transportation and competition with anti-skid function. The snowmobile of prior art field, its driving part is mainly crawler type, and the front of the car is supported by a slide plate. Although this kind of bicycle is non-slip, its driving parts are too heavy, which increases the weight of the vehicle body, and the tracks are easy to wear and become loose, so they need to be indented or replaced frequently. Constantly provide the dynamic side.

Contents of the invention

In order to overcome the above-mentioned defects in the prior art, the purpose of this utility model is to provide a snow bike with simple structure, reasonable design, light body weight, labor-saving riding and strong sliding ability.

The snow bicycle provided by the utility model includes a skateboard device, a supporting device, and a driving device. The supporting device includes a main frame, a front fork, a rear frame, and a rear fork, and the rear frame is connected and fixed to the main frame. , the main frame is provided with a seat, a handlebar, and a brake, and the driving device includes a rear sprocket, a tensioning wheel, a driving wheel, a pedal, and a front sprocket, and the pedal is fixedly connected to the front sprocket. The front sprocket is connected to the main frame by a shaft and a bearing, the axle of the driving wheel is connected to the lower end of the rear fork, the upper end of the rear fork is hinged to the main frame, and the rear fork can be rotated to a certain extent around the hinge point Swing up and down, the rear fork swings together with the whole body composed of drive wheel, rear sprocket, tensioner and chain. The hinge of the rear fork and the main frame is provided with a slide block, the slide block is fastened on the main frame, when the slide block is loose, it can slide on the main frame, and the rear fork is connected to the main frame through the hinge shaft. Slider hinged.

An elastic limiting device is provided between the rear fork and the rear frame, and support rods extending downward are fixed on both sides of the rear frame. One end of the elastic limiting device is fixedly connected to the rear fork, and the other end is fixedly connected to the rear vehicle. When the rear fork swings around the hinge point, it is limited by the elastic limiter.

The elastic limiter includes tension springs, steel wire ropes, and connectors. The two connectors are respectively fixed on the support rods of the rear fork and the rear frame. Each connector is provided with two connecting holes. The ends of the spring and the wire rope are respectively connected on the two connection holes.

The elastic limiting device can also adopt the following technical scheme, which can also achieve the effect of elastically limiting the swing of the rear fork. It includes a limiting telescopic rod and a tension spring. On the supporting rods of the fork and the rear vehicle frame, the tension spring is sleeved on the limit telescopic rod, and when the rear fork swings, the limit telescopic rod can expand and contract within a certain range and limit the position.

The skateboard device includes a front skateboard and a connecting rod. The lower end of the connecting rod is hinged on the front skateboard, and the upper end is inserted into the lower end of the front fork, and a damping spring is arranged in the front fork. The skateboard device also includes a rear skateboard and a rear skateboard connection device. The rear skateboard is provided with a pair, which are respectively arranged on both sides of the driving wheel. The two sides of the rear frame are fixedly provided with downwardly extending support rods. The rear skateboard connection device includes connecting Sleeve pipe, connecting seat, connecting seat is fixed on the rear slide plate, and the lower end of the connecting sleeve is fixedly connected with the connecting seat.

The snow bicycle provided by the utility model also includes a side edge, and the side edge is fixedly arranged on one side or both sides of the bottom of the front skateboard and the rear skateboard. It also includes a snow shield, which is arranged between the drive wheel and the rear vehicle frame, and one end of the snow shield is fixedly connected to the rear fork. The surface of the driving wheel is provided with several herringbone gear teeth.

When the user pushes the pedals, under the pull of the chain, on the one hand, the driving wheel rotates around the axis, and on the other hand, the rear fork swings around the hinge point, so that the driving wheel contacts the snow and generates a certain pressure, while The magnitude of this pressure is directly proportional to the pedaling force, so the greater the pedaling force, the stronger the driving wheel's grip. When the user does not push the pedals, the bicycle enters the sliding stage. Under the tension of the spring in the elastic limit device, the driving wheel swings up and leaves the snow, so that the driving wheel will not touch the ground when sliding. Resistance is generated, and the sliding ability is greatly enhanced. To sum up, when the snow bike is gliding, the drive wheels do not touch the snow, but grip the ground and provide power when pedaling. This process can be called timely driving.

The snow bicycle provided by the utility model has the beneficial effect that the rear fork of the snow bicycle can drive the driving wheel to swing up and down, and when the pedal is pedaled, the driving wheel touches the ground to provide power for moving forward. Leaving the ground, there is no resistance to the ground, and the sliding ability is greatly enhanced, thereby reducing physical energy consumption, improving driving speed and sports fun, and is especially suitable for snow sports, snow sports and other sports.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model embodiment one;

Fig. 2 is a schematic diagram of the structure of the elastic limiting device in Fig. 1;

Fig. 3 is a schematic diagram of the overall structure of the second embodiment of the utility model.

Labeled in the figure:

1. Rear fork; 2. Rear frame; 3. Seat; 4. Main frame; 5. Handlebar; 6. Brake; 7. Front fork; 8. Connecting rod; 9. Front skateboard; 10 .Edge; 11. Pedal; 12. Chain; 13. Tension wheel; 14. Rear skateboard; 15. Rear sprocket; 16. Drive wheel; 17. Tension spring; 18. Connector; 19. Block Snowboard; 20. slider; 21. front sprocket; 22. connection seat; 23. steel wire rope; 24. connection sleeve; 25. support rod;

Detailed ways

Referring to the accompanying drawings, the snowmobile provided by the utility model will be described in detail below in conjunction with two embodiments.

Embodiment one

With reference to Fig. 1, Fig. 2, the snowmobile of present embodiment, it comprises skateboard device, supporting device, driving device, and described supporting device comprises main vehicle frame 4, front fork 7, rear vehicle frame 2, rear fork 1 , the rear frame 2 is connected and fixed with the main frame 4, and the main frame 4 is provided with a vehicle seat 3, a handlebar 5, and a brake 6. , pedal 11, front sprocket 21, pedal 11 is fixedly connected with front sprocket 21, and front sprocket 21 is connected with main vehicle frame 4 by axle, bearing, and the axle of described driving wheel 16 is connected rear fork 1 The lower end of the rear car fork 1 is hinged with the main frame 4, and the rear car fork 1 can swing up and down to a certain extent around the hinge point. 13, the integral body that chain 12 forms swings together. A slide block 20 is provided at the hinge joint between the rear fork 1 and the main frame 4, and the slide block 20 is fastened with bolts to be arranged on the main frame 4, and can slide on the main frame 4 when the slide block 20 is loose. , the rear fork 1 is hinged with the slide block 20 through a hinge shaft.

An elastic limiting device is provided between the rear fork 1 and the rear frame 2, and the two sides of the rear frame 2 are fixedly provided with support rods 25 extending downward. One end of the elastic limiting device is fixedly connected to the rear fork 1, and the other One end is fixedly connected to the support rod 25 of the rear vehicle frame 2, and when the rear fork 1 swings around the hinge point, it is limited by the elastic limiting device.

Described elastic limiting device comprises tension spring 17, steel wire rope 23, connector 18, and two connectors 18 are respectively fixedly arranged on the support bar 25 of rear vehicle fork 1 and rear vehicle frame 2, and each connector 18 is provided with There are two connecting holes, and the ends of the extension spring 17 and the steel wire rope 23 are respectively connected on these two connecting holes.

Described skateboard device comprises front skateboard 9, connecting rod 8, and connecting rod 8 lower ends are hinged on the front skateboard 9, and the upper end is plugged in the lower end of front fork 7, and front fork 7 is provided with damping spring. Described skateboard device also comprises rear skateboard 14, rear skateboard connection device, and rear skateboard 14 is provided with a pair, is respectively arranged on the both sides of driving wheel 16, and rear vehicle frame 2 both sides are fixedly provided with the support bar 25 that stretches downwards, rear The skateboard connection device includes a connecting sleeve 24 and a connecting seat 22, the connecting seat 22 is fixed on the rear skateboard 14, the lower end of the connecting sleeve 24 is fixedly connected with the connecting seat 22, and the support rod 25 of the rear frame 2 is inserted into the connecting sleeve 24. The upper end of the connecting sleeve 24 is provided with a damping spring.

The snowmobile of this embodiment also includes edge edges 10 fixedly arranged on both sides of the bottom of the front slide plate 9 and on one side of the bottom of the rear slide plate 14 . It also includes a snow shield 19 disposed between the drive wheel 16 and the rear frame 2 , and one end of the snow shield 19 is fixedly connected to the rear fork 1 . The surface of the driving wheel 16 is provided with several herringbone gear teeth.

Before riding, the slide block 20 can be adjusted to slide up and down according to different road conditions, so as to generate different pedal force pressure ratios to adapt to different road conditions.

In the elastic limiting device, the function of the wire rope 23 is to limit the swing angle of the rear fork 1. When the rear fork 1 swings downward to a certain angle, the wire rope 23 is tightened so that it no longer swings down, thereby driving the driving wheel 16 into the snow. The depth is limited within a certain appropriate range, making the driving performance more stable.

Turn the handlebar 5 when turning a corner, because the bottom of the skateboard has a raised edge 10 cut into the snow, so it will not slip sideways, and the turning performance is good.

Hold the brake brake 6 when needing to brake, and the brake system forces the driving wheel 16 to stop rotating. Now, the pedal 11 is pedaled, and the driving wheel 16 is then lowered by the fork 1 and contacts the ground. Generate greater resistance to achieve braking.

Embodiment two

Referring to Fig. 3, the difference between the snow bike of the present embodiment and the first embodiment lies in the elastic limit device, which includes a limit telescopic rod 26 and a tension spring 17, and the two ends of the limit telescopic rod 26 are respectively connected to the rear fork 1 and the support rod 25 of the rear vehicle frame 2, the tension spring 17 is sleeved on the limit expansion link 26, and when the rear fork 1 swings, the limit expansion link 26 can expand and contract within a certain range, and limit. Other structures are the same as those in the first embodiment.

Claims (10)

1. A kind of snowmobile, it comprises skateboard device, supporting device, driving unit, and described supporting device comprises main vehicle frame, front vehicle fork, rear vehicle frame, rear vehicle fork, and rear vehicle frame is connected and fixed with main vehicle frame, The main frame is provided with a vehicle seat, a handlebar, and a brake, and the driving device includes a rear sprocket, a tensioning wheel, a drive wheel, a pedal, and a front sprocket, and the pedal is fixedly connected with the front sprocket. The sprocket is connected to the main frame by the shaft and the bearing, and the axle of the driving wheel is connected to the lower end of the rear fork. Swing up and down in a certain range, the rear fork will swing together with the whole body consisting of the drive wheel, rear sprocket, tensioner and chain. 2. The snow bike according to claim 1, characterized in that: a slider is provided at the joint between the rear fork and the main frame, the slider is fastened on the main frame, and the slider is loose It can slide on the main vehicle frame, and the rear fork is hinged with the slide block through a hinge shaft. 3. The snowmobile according to claim 1, characterized in that: an elastic limiting device is provided between the rear fork and the rear frame, and the rear frame is fixedly provided with supporting rods extending downward on both sides of the rear frame. One end of the elastic limiting device is fixedly connected to the rear fork, and the other end is fixedly connected to the support rod of the rear vehicle frame. When the rear fork swings around the hinge point, it is restricted by the elastic limiting device. 4. The snowmobile according to claim 3, characterized in that: said elastic limiting device comprises a tension spring, a steel wire rope, and a connecting piece, and the two connecting pieces are respectively fixedly arranged on the support of the rear fork and the rear frame. On the rod, each connecting piece is provided with two connecting holes, and the ends of the tension spring and the wire rope are respectively connected on the two connecting holes. 5. The snowmobile according to claim 3, characterized in that: said elastic limit device comprises a limit telescopic rod and a tension spring, and the two ends of the limit telescopic rod are respectively connected to the rear fork and the rear frame. On the support rod, the extension spring is sleeved on the limit expansion rod. 6. The snowmobile according to claim 1, wherein the skateboard device comprises a front skateboard and a connecting rod, the lower end of the connecting rod is hinged on the front skateboard, the upper end is inserted into the lower end of the front fork, and the front fork There is a shock absorbing spring inside. 7. The snowmobile according to claim 1, characterized in that: said skateboard device comprises a rear skateboard and a rear skateboard connecting device, and a pair of rear skateboards are respectively arranged on both sides of the driving wheel and on both sides of the rear frame. A support rod extending downward is fixed. The rear skateboard connection device includes a connecting sleeve and a connecting seat. The connecting seat is fixed on the rear skateboard. The lower end of the connecting sleeve is fixedly connected with the connecting seat. The upper end of the casing is provided with a damping spring in the connection casing. 8. The snowmobile according to claim 1, 6 or 7, characterized in that it further comprises side edges, and the side edges are fixedly arranged on one side or both sides of the bottom of the front skateboard and the rear skateboard. 9. The snowmobile according to claim 1, characterized in that it further comprises a snow shield disposed between the driving wheel and the rear frame, one end of the snow shield is fixedly connected to the rear fork. 10. The snowmobile according to claim 1, characterized in that: the surface of the driving wheel is provided with several herringbone teeth. the

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