CN110562378B

CN110562378B - Chainless bicycle

Info

Publication number: CN110562378B
Application number: CN201910895260.2A
Authority: CN
Inventors: 臧传美
Original assignee: Zhejiang Aerlang Technology Co Ltd
Current assignee: Zhejiang Aerlang Technology Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2024-03-29
Anticipated expiration: 2039-09-20
Also published as: CN110562378A

Abstract

The invention discloses a chainless bicycle, which comprises a frame, front wheels and rear wheels, wherein the rear wheels are rear wheels which are rotationally connected with the rear end of the frame through a rotating shaft; the rear end of the frame is rotationally connected with rear wheels through a rotating shaft, the left side and the right side of the frame are rotationally connected with cranks, connecting rods are rotationally connected on the cranks, and one ends of the connecting rods, which are far away from the cranks, are rotationally connected with rotating discs fixed on the rotating shaft. The bicycle of the present invention is ridden by a pedaling up and down motion, and can reduce bending caused by excessive stress of buttocks, knees and ankles.

Description

Chainless bicycle

Technical Field

The invention belongs to the field of bicycles, and particularly relates to a chainless bicycle.

Background

A bicycle, also called a bicycle or a bicycle, is usually a small-sized land vehicle with two wheels, after a person rides on the bicycle, the bicycle is a green and environment-friendly vehicle by taking pedal as power, wherein bi means two, and cycle means a wheel, namely a two-wheel vehicle; the bicycles are various, and have single bicycles, double bicycles and multi-person bicycles; the vehicle can be used as an environment-friendly vehicle for riding instead of walk and going out; recently, the fuel oil vehicle has extremely outstanding environmental pollution, the green and environment-friendly bicycle is favored by more and more people due to the low power consumption and no congestion,

the transmission device of the prior art bicycle is mostly in chain transmission, and the problem that the bicycle chain is easy to age, loosen and rust, noise is easy to generate in the riding process, and when the bicycle runs on a bumpy road surface, the chain is easy to fall off, so that the normal use of a rider is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the chainless bicycle, which is ridden by stepping the pedal of the rear wheel up and down, so that the bending caused by excessive stress of buttocks, knees and ankles can be reduced, in addition, the resistance generated by the chainless bicycle in the riding process can be smaller than that of the common bicycle due to no friction and abrasion between the chains and the wheel discs, and the riding process is more labor-saving.

In order to achieve the above purpose, the present invention provides the following technical solutions: the chainless bicycle comprises a frame, front wheels and rear wheels, wherein the rear ends of the frame are rotationally connected with the rear wheels through a rotating shaft, the left side and the right side of the frame are rotationally connected with a crank, the crank is rotationally connected with a connecting rod, one end, far away from the crank, of the connecting rod is rotationally connected with a rotating disc fixed on the rotating shaft, and the rotating connection part of the connecting rod and the crank is not in the same axis with the rotating disc.

Further, the frame comprises a cross rod and two connecting rods, one end of the cross rod is fixedly connected with the two connecting rods at the same time, and the two connecting rods are in a V shape.

Further, the rear wheel sets up between two connecting rods, the wheel hub middle part of rear wheel is equipped with the spliced pole, be equipped with the intercommunicating pore that runs through its both ends on the spliced pole, the middle part of intercommunicating pore is fixed with solid fixed ring, the pivot includes left axle and right axle, two the lower extreme of connecting rod all is equipped with the rotation hole, left axle and right axle pass two rotation holes respectively and extend to in the intercommunicating pore, the one end that left axle and right axle extended into in the intercommunicating pore all is equipped with the drive tooth, gu be equipped with the tooth's socket that corresponds with the drive tooth on the fixed ring, the drive tooth of left axle and the drive tooth of right axle all peg graft with the tooth's socket on the fixed ring.

Further, the rotating discs are respectively fixed at two opposite ends of the left shaft and the right shaft.

Further, limiting holes are formed in two opposite ends of the left shaft and the right shaft, and each rotating disc is connected with a limiting bolt which can be inserted into the corresponding limiting hole in a threaded mode.

Further, a clamping groove is formed in the side face, facing the right shaft, of the left shaft, and a clamping block which is inserted into the clamping groove is arranged on the right shaft.

Further, the connecting rod is provided with a rotating groove towards the side face of the rotating disc, a rotating bearing is fixed in the rotating groove, and the left shaft and the right shaft respectively penetrate through the corresponding rotating bearing.

Further, a pedal is rotatably connected to the crank.

Further, one end of the connecting rod, which is far away from the rotating disc, is rotationally connected with the middle part of the crank.

In summary, the invention has the following beneficial effects: 1. the chainless bicycle abandons the traditional chain, only pedals are stepped up and down during riding, and the weight of the bicycle is combined, so that continuous power is generated during riding, and the pedals of the chainless bicycle do not step on in complete circular motion (do stepping up and down during running), so that bending caused by excessive stress of buttocks, knees and ankles can be reduced, in addition, the resistance generated during riding of the chainless bicycle is less than that of a common bicycle due to no friction and abrasion between chains, and the riding is more labor-saving; 2. when the rear wheel is required to be detached from the frame, the limit bolts can be screwed out of the limit holes, and the left shaft and the right shaft can be sequentially moved out of the communication holes of the connecting column at the moment, so that the rear wheel can be detached from the frame; 3. the frame material is carbon fiber material, so that the whole vehicle has smaller weight and higher strength; 4. the transmission teeth of the left shaft and the transmission teeth of the right shaft are inserted into tooth grooves on the fixed ring, and the left shaft and the right shaft are driven to rotate so as to drive the tire to rotate.

Drawings

FIG. 1 is a schematic view of a chainless bicycle of the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a cross-sectional view at A-A in fig. 2.

Reference numerals: 1. a rear wheel; 2. a connecting column; 3. a connecting rod; 4. a limit bolt; 5. a rotating disc; 6. a connecting rod; 7. a crank; 8. a pedal; 9. a cross bar; 10. a left shaft; 11. a fixing ring; 12. tooth slots; 13. a drive tooth; 14. a right axis; 15. a rotating bearing; 16. a communication hole; 17. a first rotating fulcrum; 18. a second rotating fulcrum; 19. a clamping block; 20. a clamping groove; 21. a limiting hole; 22. and rotating the hole.

Detailed Description

Embodiments of the chainless bicycle of the present invention will be further described with reference to fig. 1 to 3.

As shown in fig. 2, the chainless bicycle comprises a rear end of a frame, wherein the rear end of the frame is rotationally connected with a rear wheel 1 through a rotating shaft, the left side and the right side of the frame are rotationally connected with a crank 7, a connecting rod 6 is rotationally connected to the crank 7, one end of the connecting rod 6 away from the crank 7 is rotationally connected with a rotating disc 5 fixed on the rotating shaft, the rotating connection part of the connecting rod 6 and the crank 7 is not on the same axis as the rotating disc 5, one end of the crank 7 away from the connecting rod 3 is rotationally connected with a pedal 8, and when one crank 7 rotates to an upward maximum angle, the other crank 7 rotates to a downward maximum angle; the crank 7 is rotationally connected to the frame through a first rotating fulcrum 17, the connecting rod 6 is rotationally connected to the crank 7 through a second rotating fulcrum 18, the second rotating fulcrum 18 is arranged in the middle of the crank 7, when a rider steps on the pedal 8 up and down, the crank 7 rotates back and forth by a certain angle around the first rotating fulcrum 17, because the connecting rod 6 is rotationally connected with the crank 7, the connecting rod 6 also rotates along with the rotation of the crank 7 and drives the rotating disc 5 to rotate circumferentially, and the rotating disc 5 drives the rear wheel 1 to rotate through a rotating shaft; when riding, only the pedal 8 is stepped up and down, and the weight of the bicycle is combined, continuous power is generated in the riding process, and because the pedal 8 of the chainless bicycle is not stepped on in the complete circular motion (the pedal is stepped up and down in the running process), the bending caused by excessive stress of buttocks, knees and ankles can be reduced, in addition, the friction and abrasion between chains are avoided, the resistance generated by the chainless bicycle in the riding process can be smaller than that of a common bicycle, and the riding is more labor-saving.

As shown in fig. 1, the frame comprises a cross rod 9 and two connecting rods 3, one end of the cross rod 9 is fixedly connected with the two connecting rods 3 at the same time, the two connecting rods 3 are in a V shape, the frame is integrally formed, the frame material is carbon fiber material, and the whole vehicle is small in weight and high in strength.

As shown in fig. 3, the rear wheel 1 is disposed between two connecting rods 3, a connecting column 2 is disposed in the middle of a hub of the rear wheel 1, communication holes 16 penetrating through two ends of the connecting column 2 are disposed on the connecting column 2, a fixing ring 11 is fixed in the middle of the communication holes 16, the rotating shafts comprise a left shaft 10 and a right shaft 14, rotating holes 22 are disposed at lower ends of the two connecting rods 3, the left shaft 10 and the right shaft 14 respectively penetrate through the two rotating holes 22 and extend into the communication holes 16, one ends of the left shaft 10 and the right shaft 14 extending into the rotating holes 22 are respectively provided with transmission teeth 13, the transmission teeth 13 are six, six transmission teeth 13 are uniformly distributed around the circumference of an axis of the transmission teeth 13, tooth grooves 12 corresponding to the transmission teeth 13 are disposed on the fixing ring 11, and the transmission teeth 13 of the left shaft 10 and the transmission teeth 13 of the right shaft 14 are spliced with the tooth grooves 12 on the fixing ring 11, so that the fixing ring 11 is driven to rotate when the left shaft 10 and the right shaft 14 rotate, and the rear wheel 1 is driven to rotate finally.

The two opposite ends of the left shaft 10 and the right shaft 14 are respectively provided with a limiting hole 21, each rotating disc 5 is in threaded connection with a limiting bolt 4 which can be inserted into the corresponding limiting hole 21, so that the rotating disc 5 is respectively fixed at the two opposite ends of the left shaft 10 and the right shaft 14, when the left shaft 10 and the right shaft 14 are required to be detached from the rotating disc 5, the limiting bolts 4 are only required to be screwed out of the limiting holes 21, and at the moment, the left shaft 10 and the right shaft 14 can be sequentially moved out of the communication holes 16 of the connecting column 2, so that the rear wheels can be detached from the frame.

The left shaft 10 is provided with a clamping groove 20 towards the side face of the right shaft 14, the cross section of the clamping groove 20 is rectangular, the right shaft 14 is provided with a clamping block 19 which is inserted into the clamping groove 20, and the shape of the clamping block 19 is matched with the clamping groove 20, so that the left shaft 10 and the right shaft 14 are connected.

The connecting rod 3 is equipped with the rotary groove towards the side of rolling disc 5, is fixed with rolling bearing 15 in the rotary groove, and left axle 10 and right axle 14 pass corresponding rolling bearing 15 respectively to can make left axle 10, right axle 14 more smooth and easy for the rotation of frame.

The use principle is as follows: when a rider steps on the pedal 8 up and down, the crank 7 rotates back and forth at a certain angle around the first rotating fulcrum 17, the connecting rod 6 rotates relative to the crank 7 through the second rotating fulcrum 18 and drives the rotating disc 5 to rotate circumferentially, and as the left shaft 10 and the right shaft 14 are connected with the corresponding rotating disc 5 through locking bolts, the transmission teeth 13 on the left shaft 10 and the transmission teeth 13 on the right shaft 14 are respectively inserted into corresponding tooth grooves 12 on the fixed ring 11, the rear wheel 1 is limited between the two connecting rods 3, and the rotation of the left shaft 10 and the right shaft 14 can drive the rear wheel 1 to rotate through the fixed ring 11; when the left shaft 10 and the right shaft 14 are required to be detached from the rotating disc 5, the limiting bolts 4 are only required to be screwed out of the limiting holes 21, and the left shaft 10 and the right shaft 14 can be sequentially moved out of the communication holes 16 of the connecting column 2 at the moment, so that the rear wheels can be detached from the frame, and the rear wheel tires can be conveniently maintained and replaced.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. The chainless bicycle comprises a frame, a front wheel and a rear wheel, and is characterized in that the rear wheel is a rear wheel which is rotationally connected with the rear end of the frame through a rotating shaft; the left side and the right side of the frame are both rotationally connected with a crank, a connecting rod is rotationally connected to the crank, one end of the connecting rod, which is far away from the crank, is rotationally connected with a rotating disc fixed on a rotating shaft, and the rotating connection part of the connecting rod and the crank is not positioned on the same axis with the rotating disc;

the frame comprises a cross rod and two connecting rods, and one end of the cross rod is fixedly connected with the two connecting rods at the same time; the rear wheel is arranged between the two connecting rods, a connecting column is arranged in the middle of a hub of the rear wheel, a communication hole penetrating through two ends of the connecting column is formed in the connecting column, a fixed ring is fixed in the middle of the communication hole, the rotating shaft comprises a left shaft and a right shaft, rotating holes are formed in the lower ends of the two connecting rods, the left shaft and the right shaft respectively penetrate through the two rotating holes to extend into the communication hole, transmission teeth are arranged at one ends of the left shaft and the right shaft, which extend into the communication hole, and tooth grooves corresponding to the transmission teeth are formed in the fixed ring;

limiting holes are formed in two opposite ends of the left shaft and the right shaft, and each rotating disc is connected with a limiting bolt which can be inserted into the corresponding limiting hole in a threaded manner; the left shaft is provided with a clamping groove towards the side face of the right shaft, and the right shaft is provided with a clamping block which is spliced with the clamping groove.

2. The chainless bicycle of claim 1, wherein an end of the connecting rod remote from the rotating disc is rotatably coupled to a middle portion of the crank.

3. The chainless bicycle of claim 1, wherein the two connecting rods are V-shaped.

4. The chainless bicycle of claim 2, wherein the side of the connecting rod facing the rotating disc is provided with a rotating groove, a rotating bearing is fixed in the rotating groove, and the left axle and the right axle respectively pass through the corresponding rotating bearings.

5. A chainless bicycle according to claim 3 wherein the rotating discs are fixed at opposite ends of the left and right axles, respectively.

6. The chainless bicycle of claim 4, wherein pedals are rotatably coupled to the crank.

7. The chainless bicycle of claim 1, wherein a pedal is rotatably coupled to an end of the crank remote from the connecting rod.

8. The chainless bicycle of claim 7, wherein when one crank is rotated to an upward maximum angle, the other crank is rotated to a downward maximum angle; the crank is rotationally connected to the frame through a rotating pivot, the connecting rod is rotationally connected to the crank through a second rotating pivot, and the second rotating pivot is arranged in the middle of the crank.

9. The chainless bicycle of claim 8, wherein the crank rotates back and forth at an angle about a first pivot point, the connecting rod is rotatably coupled to the crank, the connecting rod rotates with rotation of the crank and drives the rotating disc to rotate circumferentially, and the rotating disc drives the rear wheel to rotate via the rotating shaft.

10. The chainless bicycle of claim 1, wherein the frame is integrally formed and the frame material is a carbon fiber material.