CN211076229U

CN211076229U - Chainless bicycle

Info

Publication number: CN211076229U
Application number: CN201921577774.5U
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: 2020-07-24
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a chainless bicycle, which comprises a frame, a front wheel and a rear wheel, wherein the rear wheel is a rear wheel rotationally connected with the rear end of the frame through a rotating shaft; the rear end of the frame rotates the rear wheel of connection through the pivot, and the left and right sides of frame all rotates and is connected with the crank, rotates on the crank and is connected with the connecting rod, and the connecting rod is kept away from articulate one end and is rotated with the rolling disc who fixes in the pivot and be connected. The utility model discloses the bicycle is ridden through trampling the motion from top to bottom, can reduce the crooked that the excessive atress of buttock, knee and ankle arouses.

Description

Chainless bicycle

Technical Field

The utility model belongs to the bicycle field, more specifically the utility model relates to a chainless bicycle that says so.

Background

Bicycles, also known as bicycles or bicycles, generally two-wheeled small land vehicles, which are environmentally friendly vehicles powered by pedaling after people ride on the bicycle, i.e., cycles in english, where bi means two and cycle means a wheel, i.e., a two-wheeled vehicle; in china, taiwan, singapore, commonly referred to as "bicycle" or "pedal"; it is commonly called "bicycle" in hong Kong and Australia (although cantonese is commonly called as such); and in Japan, called "self-carriage"; the bicycle is various, including single-person bicycles, double-person bicycles and multi-person bicycles; can be used as an environment-friendly vehicle for riding instead of walking and going out; recently, fuel vehicles have prominent environmental pollution, green and environment-friendly bicycles are favored by more and more people due to the characteristic of low power consumption and no congestion,

the transmission device of the bicycle in the prior art is mostly chain transmission, and has the problems that a 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, the chain is easy to fall off, so that the normal use of a rider is influenced.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, the utility model provides a chainless bicycle rides chainless bicycle through trampling the footboard of drive rear wheel from top to bottom, can reduce the crooked that the excessive atress of buttock, knee and ankle arouses, in addition, because friction and wearing and tearing between chain and the rim plate have not been had, chainless bicycle can be less than ordinary bicycle at the resistance of riding in-process production, and is more laborsaving when riding.

In order to achieve the above purpose, the utility model provides a following technical scheme: the rear wheel is a rear wheel which is rotationally connected with the rear end of the frame through a rotating shaft; the rear end of the frame is rotatably connected with a rear wheel through a rotating shaft, the left side and the right side of the frame are both rotatably connected with cranks, the cranks are rotatably connected with connecting rods, and one ends of the connecting rods, far away from the cranks, are rotatably connected with rotating discs fixed on the rotating shaft; the connecting rod rotates along with the rotation of the crank and drives the rotating disc to rotate in the circumferential direction.

The rotary connection part of the connecting rod and the crank is not in the same axis with the rotary disc.

Furthermore, the frame includes horizontal pole and two connecting rods, the one end of horizontal pole is simultaneously with two connecting rod fixed connection, two the connecting rod is the V font.

Further, the back wheel sets up between two connecting rods, the wheel hub middle part of back 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, left axle and right axle extend into the one end that rotates in the hole and all are equipped with the driving cog, gu be equipped with the tooth's socket that corresponds with the driving cog on the fixed ring, the driving cog of left axle and the driving cog of right axle all peg graft with the tooth's socket on.

Furthermore, the rotating discs are respectively fixed at two ends of the left shaft, which are opposite to the right shaft.

Furthermore, the two ends of the left shaft and the two ends of the right shaft which are opposite to each other are respectively provided with a limiting hole, and each rotating disc is connected with a limiting bolt which can be inserted into the corresponding limiting hole in a threaded manner.

Furthermore, a clamping groove is formed in the side face, facing the right shaft, of the left shaft, and a clamping block connected with the clamping groove in an inserting mode is arranged on the right shaft.

Furthermore, 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 shaft and the right shaft respectively penetrate through the corresponding rotating bearings.

Further, a pedal is rotatably connected to the crank.

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

Further, the frame material is provided as a carbon fiber material.

To sum up, the utility model has the advantages that: 1. the utility model discloses no chain bicycle has abandoned traditional chain, as long as step on the footboard from top to bottom when riding, combine the weight of self again, will produce continuous power in the process of riding, and because the footboard of no chain bicycle does not trample in complete circular motion (do the motion of trampling from top to bottom in the operation process), so can reduce the bending that the excessive atress of buttock, knee and ankle arouses, in addition, because friction and wearing and tearing between the chain have not been had, the resistance that no chain bicycle produced in the process of riding can be less than ordinary bicycle, it is more laborsaving when riding; 2. when the rear wheel needs to be detached from the frame, the limiting bolt can be screwed out of the limiting hole, and the left shaft and the right shaft can be sequentially moved out of the communicating holes of the connecting column, so that the rear wheel can be detached from the frame; 3. the frame is made of carbon fiber materials, so that the whole vehicle is light in weight and high in strength; 4. the transmission teeth of the left shaft and the transmission teeth of the right shaft are inserted into tooth grooves in the fixing ring, and the tires can be driven to rotate by driving the left shaft and the right shaft to rotate.

Drawings

FIG. 1 is a schematic structural view of the 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. connecting columns; 3. a connecting rod; 4. a limit bolt; 5. Rotating the disc; 6. a connecting rod; 7. a crank; 8. a pedal; 9. a cross bar; 10. a left shaft; 11. a fixing ring; 12. a tooth socket; 13. a transmission gear; 14. a right shaft; 15. a rotating bearing; 16. a communicating hole; 17. rotating a first pivot; 18. rotating a second pivot; 19. a clamping block; 20. a card slot; 21. a limiting hole; 22. the hole is rotated.

Detailed Description

The embodiments of the chainless bicycle of the present invention will be further explained with reference to fig. 1 to 3.

As shown in fig. 2, the chainless bicycle comprises a frame, wherein the rear end of the frame is rotatably connected with a rear wheel 1 through a rotating shaft, the left side and the right side of the frame are rotatably connected with cranks 7, the cranks 7 are rotatably connected with connecting rods 6, one ends of the connecting rods 6, far away from the cranks 7, are rotatably connected with rotating discs 5 fixed on the rotating shaft, the rotating connection positions of the connecting rods 6 and the cranks 7 are not in the same axis with the rotating discs 5, one ends of the cranks 7, far away from the connecting rods 3, are rotatably connected with pedals 8, and when one crank 7 rotates to the upward maximum angle, the other crank 7 rotates; the crank 7 is rotatably connected to the frame through a first rotating fulcrum 17, the connecting rod 6 is rotatably 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 around the first rotating fulcrum 17 at a certain angle, because the connecting rod 6 is rotatably 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 the bicycle is ridden, the pedals 8 are only needed to be stepped up and down, and the weight of the bicycle is combined, continuous power can be generated in the riding process, and because the pedals 8 of the chainless bicycle are not stepped up in complete circular motion (the treading motion is carried out up and down in the running process), the bending caused by excessive stress of buttocks, knees and ankles can be reduced.

As shown in figure 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, the two connecting rods 3 are V-shaped, the frame is integrally formed, the frame is made of carbon fiber materials, the weight of the whole vehicle is small, and the strength is high.

As shown in fig. 3, the rear wheel 1 is arranged between two connecting rods 3, the connecting rod 2 is arranged in the middle of the hub of the rear wheel 1, the connecting rod 2 is provided with a communicating hole 16 penetrating through two ends of the connecting rod, the middle part of the communicating hole 16 is fixed with a fixing ring 11, the rotating shaft comprises a left shaft 10 and a right shaft 14, the lower ends of the two connecting rods 3 are provided with rotating holes 22, the left shaft 10 and the right shaft 14 respectively penetrate through the two rotating holes 22 and extend into the communicating hole 16, one ends of the left shaft 10 and the right shaft 14 extending into the rotating holes 22 are provided with driving teeth 13, the driving teeth 13 are provided with six driving teeth 13, the six driving teeth 13 are uniformly distributed around the circumference of the axis, the fixing ring 11 is provided with tooth sockets 12 corresponding to the driving teeth 13, the driving teeth 13 of the left shaft 10 and the driving teeth 13, so that the left shaft 10 and the right shaft 14 rotate to drive the fixing ring 11 to rotate, and finally drive the rear wheel 1 to rotate.

Both ends that left axle 10 and right axle 14 carried on the back mutually all are equipped with spacing hole 21, threaded connection has the spacing bolt 4 that can peg graft with the spacing hole 21 that corresponds on every rolling disc 5, thereby fix the rolling disc 5 respectively at the both ends that left axle 10 and right axle 14 carried on the back mutually, when needs are dismantled left axle 10 and right axle 14 from rolling disc 5, only need twist out spacing hole 21 with spacing bolt 4, can shift out left axle 10 and right axle 14 the intercommunicating pore 16 of spliced pole 2 in proper order this moment, thereby can dismantle the rear wheel from the frame.

The side surface of the left shaft 10 facing the right shaft 14 is provided with a clamping groove 20, the section of the clamping groove 20 is rectangular, the right shaft 14 is provided with a clamping block 19 inserted into the clamping groove 20, and the clamping block 19 is matched with the clamping groove 20 in shape, so that the left shaft 10 is connected with the right shaft 14.

The side of the connecting rod 3 facing the rotating disc 5 is provided with a rotating groove, a rotating bearing 15 is fixed in the rotating groove, and the left shaft 10 and the right shaft 14 respectively pass through the corresponding rotating bearings 15, so that the left shaft 10 and the right shaft 14 can rotate more smoothly relative to the frame.

The use principle is as follows: when a rider tramples the pedal 8 up and down, the crank 7 rotates back and forth at a certain angle around a first rotating fulcrum 17, the connecting rod 6 rotates relative to the crank 7 through a 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 the locking bolt, the transmission teeth 13 on the left shaft 10 and the transmission teeth 13 on the right shaft 14 are respectively inserted into the corresponding tooth grooves 12 on the fixing ring 11, so that the rear wheel 1 is limited between the two connecting rods 3, and the left shaft 10 and the right shaft 14 can rotate to drive the rear wheel 1 to rotate through the fixing ring 11; when the left shaft 10 and the right shaft 14 need to be detached from the rotating disc 5, only the limiting bolt 4 needs to be screwed out of the limiting hole 21, and at the moment, the left shaft 10 and the right shaft 14 can be sequentially moved out of the communicating hole 16 of the connecting column 2, so that the rear wheel can be detached from the frame, and the maintenance and the replacement of the rear wheel tire are facilitated.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A 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 rear end of the frame is rotatably connected with a rear wheel through a rotating shaft, the left side and the right side of the frame are both rotatably connected with cranks, the cranks are rotatably connected with connecting rods, and one ends of the connecting rods, far away from the cranks, are rotatably connected with rotating discs fixed on the rotating shaft; the connecting rod rotates along with the rotation of the crank and drives the rotating disc to rotate in the circumferential direction.

2. The chainless bicycle of claim 1, wherein the rotational connection of the connecting rod to the crank is not on the same axis as the turn disc.

3. The chainless bicycle of claim 1, wherein the frame comprises a cross bar and two connecting rods, one end of the cross bar is fixedly connected to both connecting rods, and both connecting rods are V-shaped.

4. The chainless bicycle according to claim 2, wherein the rear wheel is disposed between two connecting rods, a connecting rod is disposed in the middle of a hub of the rear wheel, communication holes are formed in the connecting rod and penetrate through two ends of the connecting rod, a fixing ring is fixed in the middle of the communication holes, 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 penetrate through the two rotating holes respectively and extend into the communication holes, transmission teeth are disposed at one ends of the left shaft and the right shaft extending into the rotating holes, tooth grooves corresponding to the transmission teeth are formed in the fixing ring, and the transmission teeth of the left shaft and the transmission teeth of the right shaft are inserted into the tooth grooves in the fixing ring.

5. The chainless bicycle of claim 3 or 4, wherein the rotation plates are fixed to opposite ends of the left and right shafts, respectively.

6. The chainless bicycle of claim 4, wherein the opposite ends of the left and right shafts are provided with a limiting hole, and each of the rotating discs is threadedly connected with a limiting bolt capable of being inserted into the corresponding limiting hole.

7. The chainless bicycle of claim 5, wherein a slot is formed on a side surface of the left shaft facing the right shaft, and a clamping block is arranged on the right shaft and inserted into the slot.

8. The chainless bicycle according to claim 4, wherein a rotation groove is formed on a side of the connecting rod facing the rotation disc, a rotation bearing is fixed in the rotation groove, and the left and right shafts respectively pass through the corresponding rotation bearings.

9. The chainless bicycle of claim 1, or 3 or 4, wherein pedals are rotatably attached to the cranks.

10. The chainless bicycle of claim 1, or 3 or 4, wherein an end of the connecting rod remote from the turn disc is rotatably connected to a middle portion of the crank.