CN108791687A - A kind of high speed bicycle - Google Patents

Abstract

The invention discloses a high-speed labor-saving bicycle, which relates to the field of non-motor vehicles and aims to solve the problem of slow and labor-intensive rotation of traditional bicycles. The rear axle of the vehicle frame, the rear wheel rotatably connected to the rear axle, and the vehicle seat connected to the vehicle frame, the vehicle frame is connected with a driving mechanism, the power input end of the driving mechanism is connected with a pedal assembly, and the driving mechanism The power output end of the drive mechanism is connected to the rear wheel, and the drive mechanism includes a left drive assembly and a right drive assembly arranged symmetrically with the center line of the frame. The left drive assembly and the right drive assembly are located on both sides of the rear wheel and act alternately on The rear axle also includes an auxiliary drive assembly connected to the frame and used to drive the pedal assembly. A high-speed labor-saving bicycle of the invention has the advantages of high-speed labor-saving.

Description

A high-speed labor-saving bicycle

technical field

The invention relates to the field of non-motor vehicles, more specifically, it relates to a high-speed labor-saving bicycle.

Background technique

A bicycle, also known as a bicycle or bicycle, is usually a small land vehicle with two wheels. After a person rides on the car, it is powered by pedals, which is a green and environmentally friendly means of transportation. There are many types of bicycles on the market, and their performance is getting better and better.

For example, the Chinese patent with the notification number CN201296321Y discloses a pedal labor-saving bicycle. Its technical points are: the central shaft gear is fixed on the rear wheel, the flywheel is installed on the central shaft gear, and the first pedal and the first pedal are respectively installed on the flywheel. For the second pedal, one end of the steel wire rope is connected with the first pedal and the second pedal respectively, and the other end is connected with the bearing, and the bearing is fixed on the vehicle frame. Because the pedal is lengthened, it saves time and effort when people pedal and walk. But when stepping on the first pedal, the flywheel rotates and drives the central shaft gear to rotate, and the central shaft gear drives another flywheel to rotate simultaneously, so that people are more strenuous when stepping on it.

Therefore, a new solution needs to be proposed to solve this problem.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a high-speed labor-saving bicycle with the advantage of labor-saving.

The above-mentioned technical purpose of the present invention is achieved through the following technical solutions: a high-speed labor-saving bicycle, comprising a vehicle frame, a front wheel, a rear axle rotatably connected to the vehicle frame, a rear wheel rotatably connected to the rear axle, The vehicle seat, the vehicle frame is connected with a driving mechanism, the power input end of the driving mechanism is connected with a pedal assembly, the power output end of the driving mechanism is connected with the rear wheel, and the driving mechanism includes The left drive assembly and the right drive assembly are symmetrically arranged, and the left drive assembly and the right drive assembly are respectively located on both sides of the rear wheel and act alternately on the rear axle, and also include an auxiliary drive assembly connected to the vehicle frame and used to drive the pedal assembly .

By adopting the above technical solution, the pedal assembly first drives the left drive assembly to work, and the left drive assembly acts on the rear wheel and drives the rear wheel to rotate after being amplified by the speed ratio, and then the pedal assembly drives the right drive assembly to work, and the right drive assembly drives the rear wheel Continue to rotate forward, and at this time the left drive assembly stops applying force to the rear wheel, and when the rear wheel is driven by the right drive assembly to rotate, since the power transmission between the left drive assembly and the rear wheel is disconnected, the left drive assembly is not affected by the rear wheel. In this way, when the right drive assembly is driven to drive the rear wheel to rotate, it can avoid driving the left drive assembly to rotate together. Similarly, when the left drive assembly is working, it will not drive the right drive assembly to rotate at the same time, reducing power loss and achieving more Labor-saving technical effect.

The present invention is further provided that: the pedal assembly includes a left pedal connected to the left drive assembly, a right pedal connected to the right drive assembly, and pedals are rotatably connected to the ends of the left pedal and the right pedal.

By adopting the above technical solution, people alternately exert force on the left pedal and the right pedal during work, thereby alternately driving the left drive assembly and the right drive assembly to work, and realizing the effect of continuously applying force to the rear wheels.

The present invention is further set up as follows: the left drive assembly includes a first-stage acceleration wheel set rotatably connected to the vehicle frame, a second-stage acceleration wheel set connected to the first-stage acceleration wheel set, and the power output end of the second-stage acceleration wheel set is intermittent Acts on the rear axle.

By adopting the above-mentioned technical scheme, the left pedal can drive the first-level acceleration wheel set on the left side of the rear wheel to run and achieve a speed increase, and then the first-level acceleration wheel set drives the second-level acceleration wheel set to rotate, through the second-level acceleration wheel set To achieve the second speed increase, the secondary speed-up wheel set drives the rear wheel to rotate, so that the overall speed of the bicycle can be improved after two speed increases, and the rotation ratio of the first-level speed-up wheel set and the second-level speed-up wheel set can be adjusted according to The actual situation is adjusted to meet the speed needs of different working conditions.

The present invention is further provided that: the first-stage acceleration wheel set includes a first central shaft rotatably connected to the vehicle frame, a first main sprocket fixedly connected to the first central shaft, and the end of the left pedal passes through the first flywheel It is rotatably connected to the first center shaft, and also includes a second center shaft rotatably connected to the vehicle frame, a first slave sprocket fixedly connected to the second center shaft, a first slave sprocket connected to the first main sprocket and the first slave sprocket A chain, the power input end of the secondary acceleration wheel set is fixedly connected to the second central shaft.

By adopting the above technical solution, when a person steps down the left pedal, the first central shaft is driven to rotate under the action of the first flywheel, and the first central shaft is fixedly connected with the first main sprocket, thereby driving the first main chain When the wheel rotates, the first main sprocket drives the first slave sprocket to rotate through the first chain, and the number of teeth of the first slave sprocket is smaller than that of the first main sprocket, thereby realizing a one-stage amplification of the rotational speed.

The present invention is further set as: the secondary acceleration wheel set includes the second main sprocket fixedly connected to the second center shaft, the hub fixedly connected to the rear wheel and rotatably sleeved on the rear shaft, and the left hub connected to the left side of the hub. A freewheel, a second chain connected between the second primary sprocket and the left freewheel, and a right freewheel connected to the right side of the hub.

By adopting the above technical solution, the first slave sprocket on the left side of the rear wheel drives the second main sprocket to rotate, the second main sprocket drives the left flywheel to rotate through the second chain, and the left flywheel acts on the hub to drive the rear wheel to realize Turning forward, when the left pedal lever is turned down to the maximum stroke and turned upward in the reverse direction, the right pedal lever on the right side of the rear wheel is turned down and drives the first-stage accelerator wheel set and the second-stage accelerator on the right side of the rear wheel The wheel set rotates to provide continuous power to the rear wheel, and when the outer ring of the left flywheel stops rotating, the hub is driven by the first flywheel to rotate, and the power will not be transmitted to the left flywheel, thereby achieving the effect of labor saving. In addition, because The first flywheel is connected between the left pedal bar and the first center shaft, so that the first center shaft does not rotate when the left pedal bar turns upwards, so that it does not drive the first main sprocket to rotate, so the wheels located on both sides of the rear wheel The left drive assembly and the right drive assembly are independent of each other and do not affect each other, thereby reducing power loss.

The present invention is further configured as follows: the auxiliary drive assembly includes a wheel frame that is rotatably connected to the vehicle frame near the seat cushion, fixed pulleys that are rotatably connected to both ends of the wheel frame, and a drive rope that is set around the fixed pulley. One end of the drive rope Connect to the left pedal and the other end to the right pedal.

By adopting the above technical scheme, when the left pedal turns downward, one end of the driving rope is pulled to move downward, and under the guidance of the fixed pulley, the other end of the driving rope drives the right pedal to move upward, thereby realizing the reset of the right pedal , when the left pedal rotates downward to the maximum stroke point, the right pedal is pushed down to drive the right drive assembly, and the left pedal is driven to rotate upward through the driving rope, and so on to realize the continuous movement of the left pedal and the right pedal. And rotate up and down alternately, reaching the technical effect of labor saving.

The present invention is further provided that: the auxiliary drive assembly includes a reset shaft rotatably connected to the vehicle frame, two reset wheels connected to both ends of the reset shaft, fixedly connected to the outer side walls of the two reset wheels and located at both ends of a certain diameter of the reset wheel The two sliding shafts are respectively provided in the chute in the middle section of the left pedal and the right pedal, and the two sliding shafts are respectively arranged in the chute on both sides.

By adopting the above technical scheme, when the left pedal rotates downward, the reset wheel is driven to rotate. Since the two sliding shafts are located at both ends of a certain diameter of the reset wheel, when one of the sliding shafts rotates to a low point, the other sliding shaft Rotate to the highest point, drive the two sliding shafts to rotate through the reset wheel, and the two sliding shafts slide respectively in the chute, so as to drive the left pedal and the right pedal to rotate up and down alternately; since the diameter of the reset wheel can be determined, the sliding shaft When turning, it has a top dead center and a bottom dead center. When the sliding shaft rotates to the bottom dead center, the left or right pedal turns downward to the maximum angle. Through calculation, the left or right pedal can be avoided from being excessively downward Turning causes contact with the ground, which increases safety while driving.

The present invention is further provided that: the auxiliary drive assembly includes an air box connected to the lower end of the vehicle frame, a partition is connected to the middle of the air box and divides the inside of the air box into two cavities, and the bottom of the partition is provided with a The two cavities are connected openings. The two cavities are sealed and are slidably connected with pistons. The rods of the two pistons are all upwardly passed through the top of the air box and connected with slide rods. The slide rods are connected with the rods of the pistons. The part is vertical and arranged towards the step bar, and the slide bar slides through the slide groove.

By adopting the above technical scheme, when the left pedal rotates downward, it drives the left sliding rod and the piston to move downward, thereby compressing the air in the air box and pushing the piston on the right to move upward, thus driving the piston on the right to move upward. The slide bar connected to the bar moves upwards, and then drives the right pedal to rotate upwards, realizing the alternate up and down rotation of the left pedal and the right pedal.

The present invention further provides that: the vehicle frame is provided with an adjustment assembly for adjusting the position of the vehicle seat, and the adjustment assembly includes a first adjustment seat fixedly arranged on the upper end of the vertical rod of the vehicle frame, set in the first adjustment seat along the front and rear direction of the vehicle body The first adjustment groove of the adjustment seat, the installation groove opened in the first adjustment seat, the second adjustment seat fixedly connected to the lower surface of the seat and pierced in the installation groove, and the second adjustment groove opened in the second adjustment seat along the longitudinal direction 1. Adjusting bolts that are sequentially passed through the first adjusting groove and the second adjusting groove, the cross-section of the adjusting bolt is a square that matches the first adjusting groove, and the end of the adjusting bolt protruding from the first adjusting seat is cylindrical and A nut is threadedly connected, and the first adjusting seat is tightly pressed against the inner wall of the installation groove by interference.

By adopting the above technical scheme, when the front and rear positions of the seat need to be adjusted, the nuts are loosened so that the adjusting bolt can drive the second adjustment seat to move back and forth, thereby realizing the front and rear adjustment of the seat. When the up and down position of the seat needs to be adjusted , the up and down position of the second adjustment seat can be adjusted by hitting with heavy objects, so as to realize the adjustment of the up and down position of the seat; through the adjustment of the position of the seat, it can adapt to pedal bars of different lengths, and can adapt to people of different heights people.

The present invention is further configured as follows: the outer rotating sleeves of the two sliding shafts are provided with rollers, and the rollers are arranged in the chute.

By adopting the above technical solution, when the sliding shaft rotates along the sliding groove, the abrasion between the sliding groove and the sliding shaft is reduced through the rollers, thereby prolonging the service life.

In summary, the present invention has the following beneficial effects:

One: The pedal assembly first drives the left drive assembly to work, and the left drive assembly acts on the rear wheel after the speed ratio is amplified and drives the rear wheel to rotate, then the pedal assembly drives the right drive assembly to work, and the right drive assembly drives the rear wheel to continue forward Rotation, and at this time the left drive assembly stops exerting force on the rear wheel, and when the rear wheel is driven by the right drive assembly, since the power transmission between the left drive assembly and the rear wheel is disconnected, the left drive assembly is not subject to the reverse direction of the rear wheel In this way, when the right drive assembly is driven to drive the rear wheel to rotate, it can avoid driving the left drive assembly to rotate together. Similarly, when the left drive assembly is working, it will not drive the right drive assembly to rotate at the same time, reducing power loss and achieving a more labor-saving technology. Effect;

Second: When the left pedal turns downward, one end of the driving rope is pulled to move downward, and under the guidance of the fixed pulley, the other end of the driving rope drives the right pedal to move upward, thereby realizing the reset of the right pedal. When the lever rotates downward to the maximum stroke point, step down the right pedal to drive the right drive assembly, drive the left pedal to rotate upward through the driving rope, and so on, to realize the continuous and alternate up and down rotation of the left pedal and the right pedal , to achieve a labor-saving technical effect.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the first embodiment;

Fig. 2 is the structural representation of driving mechanism;

Fig. 3 is the structural representation of embodiment two;

Fig. 4 is the structural representation of embodiment three and embodiment four;

Figure 5 is a schematic diagram of the internal structure of the air box.

In the figure: 1. Vehicle frame; 2. Front wheel; 3. Rear axle; 4. Rear wheel; 5. Seat; 6. Driving mechanism; 7. Pedal bar assembly; 8. Left drive assembly; 9. Right drive assembly ; 10, auxiliary drive assembly; 11, left pedal; 12, right pedal; 13, pedal; Main sprocket; 18, first flywheel; 19, second center shaft; 20, first slave sprocket; 21, first chain; 22, second main sprocket; 23, flower drum; 24, left flywheel; 25, Right flywheel; 26, wheel frame; 27, fixed pulley; 28, driving rope; 29, reset shaft; 30, reset wheel; 31, slide shaft; 32, chute; 33, air box; 34, clapboard; 35, Cavity; 36, opening; 37, piston; 38, slide rod; 39, adjustment assembly; 40, first adjustment seat; 41, first adjustment groove; 42, first adjustment bolt; 43, second adjustment groove; 44 , the second adjustment seat; 45, the installation groove; 46, the roller; 47, the second chain; 48, the longitudinal bar; 49, the front bracket; 50, the rear bracket.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment 1: A high-speed labor-saving bicycle, as shown in Figure 1, includes a vehicle frame 1, a front wheel 2 connected to the front end of the vehicle frame 1 through shaft rotation, a rear axle 3 rotatably connected to the rear side of the vehicle frame 1, and a rotating sleeve The rear wheel 4 arranged on the rear axle 3 also includes a vehicle seat 5 connected to the upper end of the middle part of the vehicle frame 1; a driving mechanism 6 is connected to the vehicle frame 1, and the power input end of the driving mechanism 6 is connected to a pedal assembly 7, The power output end of the drive mechanism 6 is connected to the rear wheel 4, the drive mechanism 6 includes a left drive assembly 8 and a right drive assembly 9, and the left drive assembly 8 and the right drive assembly 9 are arranged symmetrically with the centerline of the vehicle frame 1 and are respectively located at On both sides of the rear wheel 4, the left drive assembly 8 and the right drive assembly 9 act alternately on the rear wheel 4, and the vehicle frame 1 is also connected with an auxiliary drive assembly 10 for controlling the resetting of the step bar assembly 7, through which the auxiliary drive assembly 10 The step bar assembly 7 works continuously and is more labor-saving. The diameter of the front wheel 2 is smaller than the diameter of the rear wheel 4, thereby increasing the installation space of the pedal assembly 7; the modification scheme can also be applied to the field of tricycles, thereby achieving the same technical effect.

The pedal assembly 7 first drives the left drive assembly 8 to work, and the left drive assembly 8 acts on the rear wheel 4 after the speed ratio is amplified and drives the rear wheel 4 to rotate, and then the pedal assembly 7 drives the right drive assembly 9 to work, and the right drive assembly 9 drives Rear wheel 4 continues to rotate forward, and this moment left drive assembly 8 stops applying force to rear wheel 4, and when rear wheel 4 is driven to rotate by right drive assembly 9, because the power transmission of left drive assembly 8 and rear wheel 4 disconnects , so the left drive assembly 8 is not subject to the reverse force of the rear wheel 4, so that when the right drive assembly 9 is driven to drive the rear wheel 4 to rotate, it can avoid driving the left drive assembly 8 to rotate together. Similarly, when the left drive assembly 8 is working, it will not It will drive the right drive assembly 9 to rotate simultaneously, which reduces power loss and achieves a more labor-saving technical effect.

As shown in Figure 2, the pedal assembly 7 includes a left pedal 11 connected to the left drive assembly 8, a right pedal 12 connected to the right drive assembly 9, and the ends of the left pedal 11 and the right pedal 12 all pass through The rotating shaft is connected with a pedal 13; when working, people alternately apply force to the left pedal bar 11 and the right pedal bar 12, thereby alternately driving the left drive assembly 8 and the right drive assembly 9 to work, achieving the effect of continuously applying force to the rear wheel 4 .

As shown in Figure 3, the vehicle frame 1 includes a longitudinal bar 48 for connecting the vehicle seat 5, a front bracket 49 connected to the front of the longitudinal bar 48 and used to connect the front wheel 2, connected to the rear of the longitudinal bar 48 and used to connect the rear wheel 4 rear bracket 50, the rear bracket 50 is U-shaped and the rear wheel 4 is connected to the rear bracket 50; Wheel set 14 and the secondary accelerating wheel set 15 driven by the primary accelerating wheel set 14, the power output end of the secondary accelerating wheel set 15 acts on the rear axle 3 intermittently; The first-level acceleration wheel set 14 runs and realizes a speed increase, and then the first-level acceleration wheel set 14 drives the second-level acceleration wheel set 15 to rotate, and the second speed increase is realized through the second-level acceleration wheel set 15, and the second-level acceleration wheel set 15 15 drives the rear wheel 4 to rotate, so that the overall speed of the bicycle can be improved through two speed increases, and the rotation ratio of the first-level acceleration wheel set 14 and the second-level acceleration wheel set 15 can be adjusted according to actual conditions, thereby adapting to different working conditions. The speed required by the situation.

As shown in FIG. 2 , the primary accelerator wheel set 14 includes a first center shaft 16 rotatably mounted on the rear bracket 50 , a first main sprocket 17 fixedly connected to the first center shaft 16 , and the end of the left pedal rod 11 passes through The first flywheel 18 is rotatably connected to the first central shaft 16, and also includes a second central shaft 19 rotatably connected to the rear bracket 50, a first slave sprocket 20 fixedly connected to the second central shaft 19, and a first main chain Wheel 17 and the first from the first chain 21 of sprocket wheel 20, the power input end of secondary speed-up wheel set 15 is fixedly connected with the second axis 19; Under the action, the first central shaft 16 is driven to rotate, and the first central shaft 16 is fixedly connected with the first main sprocket 17, thereby driving the first main sprocket 17 to rotate, and the first main sprocket 17 drives the first main sprocket 17 through the first chain 21. A slave sprocket 20 rotates, and the number of teeth of the first slave sprocket 20 is smaller than the number of teeth of the first main sprocket 17 , thereby achieving a one-stage amplification of the rotational speed.

As shown in Figure 2, the secondary accelerator wheel set 15 includes a second main sprocket 22 fixedly connected to the second center shaft 19, a hub 23 fixedly connected to the rear wheel 4 and rotatably sleeved on the rear shaft 3, and connected by threads The left freewheel 24 on the left side of the hub 23, the second chain 47 connected between the second main sprocket 22 and the left freewheel 24, also includes the right freewheel 25 connected to the right side of the hub 23 by screwing, and here the left freewheel 24 and the thread of right flywheel 25 are all arranged on the inner ring and rotate in the opposite direction, so that the rotation direction of left flywheel 24 and right flywheel 25 is the same; the first slave sprocket 20 on the left side of rear wheel 4 drives the second main sprocket 22 rotates, the second main sprocket 22 drives the left flywheel 24 to rotate through the second chain 47, acts on the hub 23 through the left flywheel 24, drives the rear wheel 4 to realize forward rotation, when the left pedal lever 11 rotates downward to the maximum stroke and When rotating upwards in the opposite direction, the right pedal lever 12 positioned on the right side of the rear wheel 4 rotates downwards and drives the primary acceleration wheel set 14 and the secondary acceleration wheel set 15 positioned on the right side of the rear wheel 4 to rotate, thereby providing a boost to the rear wheel 4. Continuous power, and when the outer ring of the left flywheel 24 stops rotating, the hub 23 is driven by the first flywheel 18 to rotate, and will not transmit power to the left flywheel 24, thereby achieving the effect of labor saving. In addition, because the left pedal 11 The first flywheel 18 is connected with the first central shaft 16 by bolts, the outer ring of the first flywheel 18 is connected on the left pedal 11 by bolts, the inner ring of the first flywheel 18 is connected on the first central shaft 16, When the left pedal 11 is rotated upwards, the first center shaft 16 does not rotate, thereby not driving the first main sprocket 17 to rotate. Therefore, the left drive assembly 8 and the right drive assembly 9 located on both sides of the rear wheel 4 are independent of each other. No effect, when the left pedal stops rotating, the left drive assembly stops running, when the right pedal stops rotating, the right drive assembly stops running, when both the left and right pedals stop rotating, the left drive assembly and the right drive assembly stop running at the same time , and the rear wheels can continue to turn forward, thereby reducing power loss.

As shown in FIG. 1 , in order to ensure that the left pedal 11 rotates downward while the right pedal 12 rotates upward and resets, the auxiliary drive assembly 10 includes a wheel frame 26 that rotates through the longitudinal rod 48 and is arranged horizontally near the seat cushion. Rotate the fixed pulley 27 that is connected to the two ends of the wheel frame 26, the drive rope 28 that is set around the fixed pulley 27, and one end of the drive rope 28 is connected to the left pedal 11, and the other end is connected to the right pedal 12. The drive rope here 28 can adopt rope belt or nylon rope; Pull an end of driving rope 28 to move downward when left pedal lever 11 rotates like this, under the guiding action of fixed pulley 27, the other end of driving rope 28 drives right pedal lever 12 upwards move, so as to realize the reset of the right pedal 12, when the left pedal 11 rotates downward to the maximum stroke point, step down the right pedal 12 to drive the right drive assembly 9, drive the left pedal 11 upward through the driving rope 28 Rotate, and so on, realize that left pedal bar 11 and right pedal bar 12 continue and rotate up and down alternately, have reached the technical effect of saving labor.

Embodiment 2: A high-speed labor-saving bicycle, as shown in Figure 3, differs from Embodiment 1 in that: the auxiliary drive assembly 10 includes a reset shaft 29 that is rotatably connected to the bottom of the longitudinal bar 48, and is fixedly connected to both ends of the reset shaft 29. And the two reset wheels 30 that are arranged in parallel, are respectively fixedly connected to two slide shafts 31 on the outer side walls of the two reset wheels 30 and are positioned at two ends of a certain diameter of the reset wheel 30, and are respectively opened in the middle section of the left pedal bar 11 and the right pedal bar 12. The chute 32 and the two sliding shafts 31 are respectively installed in the chute 32 on both sides; when the left pedal 11 rotates downward, the reset wheel 30 is driven to rotate, because the two sliding shafts 31 are located at a certain diameter of the reset wheel 30 Both ends, so when one of the sliding shafts 31 rotates to a low point, the other sliding shaft 31 rotates to a high point, and the reset wheel 30 drives the two sliding shafts 31 to rotate, and the two sliding shafts 31 slide through the chute 32 respectively. Thereby driving the left pedal 11 and the right pedal 12 to realize alternating up and down rotation; since the diameter value of the reset wheel 30 can be determined, the sliding shaft 31 has a top dead center and a bottom dead center when rotating, and when the sliding shaft 31 rotates to the bottom dead center , the left pedal 11 or the right pedal 12 rotates downwards to the maximum angle, through calculation, it can avoid the excessive downward rotation of the left pedal 11 or the right pedal 12 and cause the ground contact, thereby improving the safety when driving.

Because the sliding shaft 31 slides back and forth along the chute 32, in order to reduce the frictional force generated when sliding, the outer rotation of the sliding shaft 31 is provided with a roller 46, and the roller 46 is penetrated in the chute 32; When the groove 32 rotates, the wear between the slide groove 32 and the sliding shaft 31 is reduced by the roller 46, thereby prolonging the service life.

Embodiment three: a high-speed labor-saving bicycle, as shown in Figure 4 and Figure 5, differs from Embodiment two in that: the auxiliary drive assembly 10 includes an air box 33 fixedly connected to the lower end of the longitudinal bar 48 by bolts, and the air box 33 The middle part is longitudinally connected with a dividing plate 34 and divides the inside of the gas box 33 into two left and right cavities 35. The gas box 33 is sealed and filled with high-pressure air through an air compressor. The bottom of the dividing plate 34 is provided with two cavities 35. Connected opening 36, all sealed in the two cavities 35 and slidably connected with piston 37, the rods of the two pistons 37 all pass through the top of the air box 33 and are integrally connected with a slide bar 38, the slide bar 38 and the piston 37 The rod is vertical and set towards the pedal, and the sliding rod 38 slides through the chute 32; when the left pedal 11 rotates downward, it drives the left sliding rod 38 and the piston 37 to move downward, thereby compressing the gas tank 33 The air pushes the piston 37 on the right side to move upward, thereby driving the slide rod 38 connected to the rod of the right piston 37 to move upward, and then drives the right pedal 12 to rotate upward, realizing the left pedal 11 and the right pedal 12 Alternately turn up and down.

Embodiment 4: A high-speed labor-saving bicycle, as shown in the figure, differs from Embodiment 1 in that: an adjustment assembly 39 for adjusting the position of the seat 5 is provided at the upper end of the vehicle frame 1 near the seat 5, and the adjustment assembly 39 includes the first adjustment seat 40 fixedly arranged on the vehicle frame 1 close to the seat 5, the first adjustment groove 41 opened on the first adjustment seat 40 along the front and rear direction of the vehicle body, and the installation position opened on the first adjustment seat 40. The slot 45, the second adjustment seat 44 fixedly connected to the lower surface of the vehicle seat 5 and pierced in the installation slot 45, the second adjustment slot 43 opened in the second adjustment seat 44 longitudinally, and the first adjustment slot 41 in turn And the adjusting bolt of the second adjusting groove 43, the section of the adjusting bolt is a square matching with the first adjusting groove 41, thereby preventing the second adjusting seat 44 from rotating relative to the first adjusting seat 40, and the adjusting bolt extends out of the first adjusting seat One end of 40 is cylindrical and is threadedly connected with a nut, and the first adjusting seat 40 interferes tightly with the inner wall of the installation groove 45; The adjustment seat 44 realizes moving back and forth, thereby realizing the front and rear adjustment of the vehicle seat 5. When the up and down position of the vehicle seat 5 needs to be adjusted, the up and down position of the second adjustment seat 44 can be adjusted by hitting with a heavy object, so as to realize the adjustment of the vehicle seat 5. 5. The adjustment of the upper and lower positions; through the adjustment of the position of the seat 5, it can adapt to pedal bars of different lengths and people of different heights.

After several experiments, a set of data is selected to illustrate the effect: when the left pedal 11 and the right pedal 12 are 60cm, the rotation angle of the left pedal 11 and the right pedal 12 can reach 48°. When 11 and right pedal bar 12 are selected 65cm for use, the rotation angle of left pedal bar 11 and right pedal bar 12 can reach 45 °, take stepping on 40 times as an example per hour, left pedal bar 11 and right pedal bar 12 total 80 times, one The transmission ratio of the first-stage accelerating wheel group 14 is selected as 1:6, and the transmission ratio of the secondary accelerating wheel group 15 is selected as 1:3, so the left drive assembly 8 drives the rear wheel 4 to rotate 180 circles, and the right drive assembly 9 drives the rear wheel 4 to rotate 180. Circumference, calculated by the length of 2 meters around the rear wheel 4, can run 360 meters, so it can reach about 21 kilometers per hour. Compared with the traditional bicycle under the same working conditions, the speed that this scheme can achieve is faster, so it has a comparative advantage. Obvious high-speed effect.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. A high-speed labor-saving bicycle, comprising a vehicle frame (1), a front wheel (2), a rear axle (3) rotatably connected to the vehicle frame (1), a rear wheel (4) rotatably connected to the rear axle (3) . The vehicle seat (5) connected to the vehicle frame (1), characterized in that: the vehicle frame (1) is connected with a driving mechanism (6), and the power input end of the driving mechanism (6) is connected with a pedal assembly (7), the power output end of the drive mechanism (6) is connected to the rear wheel (4), and the drive mechanism (6) includes a left drive assembly (8) symmetrically arranged with the center line of the vehicle frame (1) and The right drive assembly (9), the left drive assembly (8) and the right drive assembly (9) are respectively located on both sides of the rear wheel (4) and act alternately on the rear axle (3), and also include a And be used to drive the auxiliary drive assembly (10) of pedal bar assembly (7). 2. A high-speed, labor-saving bicycle according to claim 1, characterized in that: the pedal assembly (7) includes a left pedal (11) connected to the left drive assembly (8), connected to the right drive assembly ( 9) the right pedal (12), the end of the left pedal (11) and the right pedal (12) are all rotatably connected with pedals (13). 3. A high-speed labor-saving bicycle according to claim 2, characterized in that: the left drive assembly (8) includes a first-stage acceleration wheel set (14) rotatably connected to the vehicle frame (1), connected to a first-stage The secondary accelerating wheel set (15) of the accelerating wheel set (14), the power output end of the secondary accelerating wheel set (15) acts on the rear axle (3) intermittently. 4. A high-speed, labor-saving bicycle according to claim 3, characterized in that: said primary acceleration wheel set (14) includes a first center shaft (16) that is rotatably connected to the vehicle frame (1), fixedly connected to The first main sprocket (17) of the first center shaft (16), the end of the left pedal (11) is connected to the first center shaft (16) in rotation through the first flywheel (18), and also includes a rotation connection to the first center shaft (16). The second center shaft (19) of the vehicle frame (1), the first slave sprocket (20) fixedly connected to the second center shaft (19), the first main sprocket (17) and the first slave sprocket to be connected (20) of the first chain (21), the power input end of the secondary acceleration wheel set (15) is fixedly connected to the second central shaft (19). 5. A kind of high-speed labor-saving bicycle according to claim 4, characterized in that: said secondary acceleration wheel set (15) comprises a second main sprocket (22) fixedly connected to the second center shaft (19), Fixedly connected to the rear wheel (4) and rotate the hub (23) that is sleeved on the rear axle (3), the left flywheel (24) that is connected to the left side of the hub (23), is connected to the second main sprocket (22) and The second chain (47) between the left flywheel (24) also includes a right flywheel (25) connected to the right side of the hub (23). 6. A high-speed labor-saving bicycle according to claim 2, characterized in that: the auxiliary drive assembly (10) includes a wheel frame (26) that is rotatably connected to the frame (1) near the seat cushion, and is rotatably connected to The fixed pulley (27) at the two ends of the wheel frame (26), the drive rope (28) set around the fixed pulley (27), one end of the drive rope (28) is connected to the left pedal (11), and the other end is connected to the Right pedal (12). 7. A high-speed labor-saving bicycle according to claim 2, characterized in that: the auxiliary drive assembly (10) includes a reset shaft (29) rotatably connected to the frame (1), a reset shaft (29) connected to Two reset wheels (30) at both ends, respectively fixedly connected to two slide shafts (31) on the outer sidewalls of the two reset wheels (30) and positioned at a certain diameter two ends of the reset wheel (30), are respectively opened on the left pedal (11 ) and the chute (32) in the middle section of the right step bar (12), the two sliding shafts (31) are respectively set in the chute (32) on both sides. 8. A high-speed labor-saving bicycle according to claim 7, characterized in that: the auxiliary drive assembly (10) includes an air box (33) connected to the lower end of the frame (1), and the air box (33) The middle part is connected with a partition (34) and divides the interior of the gas box (33) into two cavities (35), and the bottom of the partition (34) is provided with an opening (36) communicating the two cavities (35) , the two cavities (35) are sealed and are slidably connected with pistons (37), and the rods of the two pistons (37) are all upwardly passed through the top of the air box (33) and connected with slide rods (38), The sliding rod (38) is perpendicular to the rod portion of the piston (37) and is arranged towards the step rod, and the sliding rod (38) slides and passes through the slide groove (32). 9. A high-speed labor-saving bicycle according to claim 1, characterized in that: the vehicle frame (1) is provided with an adjustment assembly (39) for adjusting the position of the vehicle seat (5), and the adjustment assembly (39) It includes a first adjustment seat (40) fixedly arranged on the upper end of the vertical rod of the vehicle frame (1), a first adjustment groove (41) opened on the first adjustment seat (40) along the front and rear direction of the vehicle body, and a first adjustment slot (41) opened on the first adjustment seat (40). The mounting groove (45) of the seat (40), the second adjusting seat (44) fixedly connected to the lower surface of the vehicle seat (5) and passing through the mounting groove (45), and the second adjusting seat (44) arranged longitudinally The second adjustment slot (43) of the first adjustment slot (41) and the adjustment bolts of the second adjustment slot (43) in turn, the cross section of the adjustment bolt is a square shape matching the first adjustment slot (41) , one end of the adjusting bolt protruding from the first adjusting seat (40) is cylindrical and is threadedly connected with a nut, and the first adjusting seat (40) interferes tightly with the inner wall of the installation groove (45). 10. A high-speed labor-saving bicycle according to claim 7, characterized in that: two sliding shafts (31) are provided with rollers (46) on the outer rotation sleeves, and the rollers (46) are passed through the chute (32 )Inside.