CN206885232U - A kind of bicycle - Google Patents

Abstract

The utility model discloses a kind of bicycle, including vehicle frame, rear wheel, transmission system；The vehicle frame includes back vent and main body of vehicle frame；Front vehicle wheel is attached to the front fork, and the handlebar and vehicle seat are attached to the main body of vehicle frame；The rear wheel includes rear rim and the hind axle being connected with the rear rim, and the hind axle is located on the rear rim central axis, and the hind axle is attached to the back vent；It is characterized in that, the transmission system includes the integral type conveyer belt for connecting the axis of the pedal and the connection axis and the hind axle, it is located at the back vent of rear rim the same side with the conveyer belt and the main body of vehicle frame forms a back vent space, the whole transmission belt is located at the periphery in the back vent space.Bicycle provided by the utility model, it is difficult to solve the problems, such as that back vent decomposes.

Description

A kind of bicycle

Technical field

Technical field of bicycles is the utility model is related to, more particularly to a kind of bicycle.

Background technology

With the fast development of bike tech, current bicycle species is continuously increased.Either which kind of bicycle, its Transmission system generally has transmission belt, and conventional transmission belt is spliced chain；The structure of current cycle frame is limited to, Vehicle frame back vent is interfered with transmission belt, it is necessary to the back vent formed after chain is decomposed through the back vent of bicycle with main body of vehicle frame Space, then spliced, transmission belt could run well.But this spliced chain is easy to disconnect because of decomposition, causes Bicycle can not normal work.

In recent years, the problem of Ye You companies easily disconnect for chain develops integral type transmission belt, and conventional integral type passes Dynamic band can be belt.Because integral type transmission belt can not decompose, it is necessary to existing vehicle frame back vent is designed into splicing construction, first Vehicle frame back vent is decomposed, then integral type transmission belt is penetrated into back vent space and is attached to correspondence position, but decomposes the dynamic of back vent Professional tool is needed, also very high is required to artificial experience.

Utility model content

The utility model embodiment provides a kind of bicycle, solves back vent and decomposes difficult problem.

To achieve the above object, the utility model embodiment uses following technical proposals：

A kind of bicycle, including vehicle frame, front vehicle wheel, rear wheel, handlebar, vehicle seat, transmission system and pedal；The car Frame includes front fork, back vent and the main body of vehicle frame of the connection front fork and back vent, and the front vehicle wheel is attached to the front fork, described Handlebar and vehicle seat are attached to the main body of vehicle frame；The rear wheel includes rear rim and the trailing wheel being connected with the rear rim Axle, the hind axle is located on the rear rim central axis, and the hind axle is attached to the back vent；Characterized in that, The transmission system includes connecting the axis of the pedal and the integral type of the connection axis and the hind axle transmits Band, it is located at the back vent of rear rim the same side with the conveyer belt and the main body of vehicle frame forms a back vent space, it is whole described Transmission belt is located at the periphery in the back vent space.

Preferably, the back vent includes the upper fork and lower fork being connected with each other and extended by the upper fork and lower fork junction Extension fork, the upper fork and lower fork be connected to the main body of vehicle frame, and the extension fork is connected to the hind axle.

Preferably, when the bicycle is positioned over a reference plane, by reference plane towards the direction of bicycle for straight up Direction, the upper fork and lower fork that rear rim the same side is located at the conveyer belt are wholy set in above the whole conveyer belt.

Preferably, the upper fork and lower fork are tubulose, and the extension fork is sheet.

Preferably, some perforates are provided with the extension fork.

Preferably, the back vent quantity is two, and two back fork structure is identical and symmetrically splits wheel rim two in the rear Side.

Preferably, reinforcement is formed between two back vent, is pitched in the reinforcement connection two and is located at the rear rim The top of opposite position.

Preferably, the main body of vehicle frame includes head tube, standpipe and the branch pipe of the connection head tube and standpipe, under head tube End and upper end are separately installed with the front fork and the handlebar, and standpipe upper end is provided with vehicle seat, and the upper fork be attached to it is described Standpipe.

Preferably, the branch pipe includes upper tube and the down tube under upper tube, and the lower fork is attached to the down tube.

Preferably, the conveyer belt is belt.

Above-mentioned at least one technical scheme that the utility model embodiment uses can reach following beneficial effect：

Compared with prior art, bicycle provided by the utility model, it is located at rear rim the same side with the conveyer belt Back vent forms a back vent space with the main body of vehicle frame, and the whole transmission belt is located at the periphery in the back vent space so that Transmission belt solves back vent and decomposes difficult problem without pass through back vent space.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms one of the present utility model Point, schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model Improper restriction.In the accompanying drawings：

Fig. 1 is the utility model preferred embodiment stereo bicycle figure；

Fig. 2 is another angle schematic diagram of bicycle shown in Fig. 1；

Fig. 3 is bicycle partial schematic diagram shown in Fig. 1.

Embodiment

It is specific below in conjunction with the utility model to make the purpose of this utility model, technical scheme and advantage clearer Technical solutions of the utility model are clearly and completely described for embodiment and corresponding accompanying drawing.Obviously, described embodiment Only it is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, this area The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to the utility model The scope of protection.

Below in conjunction with accompanying drawing, the technical scheme that the utility model preferred embodiment provides is described in detail.

As shown in figure 1, the utility model provides a kind of bicycle, including vehicle frame 1, front vehicle wheel (not shown), rear wheel 2nd, handlebar 3, vehicle seat (not shown), transmission system 4 and pedal (not shown)；Vehicle frame 1 includes front fork 11, back vent 12 and connected The main body of vehicle frame 13 of front fork 11 and back vent 12 is connect, front vehicle wheel is attached to front fork 11, and handlebar 3 and vehicle seat are attached to main body of vehicle frame 13； Rear wheel 2 includes rear rim 21 and the hind axle 22 being connected with rear rim 21, hind axle 22 are located at the central axis of rear rim 21 On, and hind axle 22 is attached to back vent 12；Transmission system 4 includes the axis 41 and connection axis 41 and trailing wheel of connection pedal The integral type conveyer belt 42 of axle 22, it is located at the back vent 12 of the same side of rear rim 21 with conveyer belt 42 and main body of vehicle frame 13 forms one Back vent space S, whole transmission belt 42 are located at the periphery of back vent space S.Specifically, the present embodiment conveyer belt is belt.

As shown in figure 1, vehicle frame 1 includes front fork 11, back vent 12 and the main body of vehicle frame 13 for connecting the back vent 12 of front fork 11 and two, And two form reinforcement 14 between back vent 12 (with reference to figure 2).

Front fork 11 includes a connecting portion 111 and is symmetrically separated downwards by connecting portion 111 and extend formed two limits Position portion 112.Wherein, connecting portion 111 is connected to main body of vehicle frame 13.Front vehicle wheel includes preceding wheel rim, on front-wheel circle center axis Front axle, both ends be connected to before some preceding spokes on wheel rim and front axle, front vehicle wheel is inserted in two limiting sections 112 Between, it is attached to by the limiting section 112 of front-wheel axis connection two, and then by front vehicle wheel between two limiting sections 112 of front fork 11.

The quantity of back vent 12 is two, and the structure of two back vent 12 is identical and symmetrically splits in the both sides of rear rim 21 (with reference to figure 2), uses To increase the stability of the structure of vehicle frame 1, certain structure of two back vent 12 asymmetric can also be set.Each back vent 12 includes mutually interconnecting The upper fork 121 and lower fork 122 that connect and the extension fork 123 extended obliquely downward by upper fork 121 and the junction of lower fork 122.Upper fork 121 and lower fork 122 be connected to main body of vehicle frame 13, and upper fork 121 and lower fork 122 are tubulose, and one is positioned in bicycle During reference plane, towards the direction of bicycle it is direction straight up by reference plane, is located at the same side of rear rim 21 with conveyer belt 42 Upper fork 121 and lower fork 122 be wholy set in the top of whole conveyer belt 42 (with reference to figure 3).Extension fork 123 is sheet, extension fork 123 end forms fluting 1231, while extends in fork 123 and be provided with some perforates 1232.Fluting 1231 can coordinate with connector Extension fork 123 is fixedly attached to hind axle 22, and then hind axle 22 is attached between two back vents 12.Some perforates 1232 can be with Mitigate extension 123 weight of fork, and then make it that whole vehicle frame is lighter.Certain the utility model other embodiment will can also prolong Stretch 123 shapes of fork and be designed to other shapes, such as be also tubulose, be not limited here.After the present embodiment extension fork 123 is connected to Wheel shaft 22, and it is located at the upper fork 121 of the same side of rear rim 21 with conveyer belt 42 and lower fork 122 is wholy set in whole conveyer belt 42 Top, therefore the present embodiment conveyer belt 42 is without pass through fork 121 and lower fork 122 in upper fork 121 and lower fork 122 and connection The back vent space S for the closure that main body of vehicle frame 13 is formed, solve back vent 12 and decompose difficult problem, be by the structure design of back vent 12 now Integral structure, the intensity of vehicle frame 1 can be added, and then increase bicycle service life, reduce potential safety hazard, this certain practicality New other embodiment, it is located at the upper fork 121 of the same side of rear rim 21 with conveyer belt 42 and lower fork 122 can not also whole installation Above whole conveyer belt 42, or even extension fork 123 is not provided with, as long as being located at the lower fork of the same side of rear rim 21 with conveyer belt 42 122 are connected to main body of vehicle frame 13 by the whole top of conveyer belt 42 so that whole transmission belt 42 is located at the periphery of back vent space S Can.The fork of the present embodiment extension simultaneously 123 homogeneously connects with upper fork 11 and lower fork 12, makes fork 121, lower fork 122 and extension Fork 123 can mutual stress, and then increase the structure of back vent 12 stability.Certain the utility model other embodiment extension fork 123 can also be different with the present embodiment from upper fork 121 and the connected mode of lower fork 122, for example, extension pitch 123 can also with only with Upper fork 121 or lower fork 122 connect, and are not limited here.

Main body of vehicle frame 13 includes head tube 131, standpipe 132 and the branch pipe 133 of connection head tube 131 and standpipe 132.Head tube 131 lower end and upper end are separately installed with front fork 11 and handlebar 3, and specifically, the connecting portion 111 of front fork 11 inserts from head tube lower end Head tube 131.The upper end of standpipe 132 is provided with vehicle seat, meanwhile, upper fork 121 is attached to standpipe 132.Branch pipe 133 include upper tube 1331 with And the down tube 1332 under upper tube 1331, the both ends of upper tube 1331 are respectively connecting to head tube 131 and standpipe 132, while down tube 1332 both ends are also respectively connecting to head tube 131 and standpipe 132, and upper tube 1331 and down tube 1332 are set up in parallel, and increase vehicle frame Intensity, so as to which the front end of bicycle and rear end be connected more securely, certain the utility model other embodiment car The upper tube 1331 of frame body 13 can also be different with the present embodiment from the set-up mode of down tube 1332, such as comprise only down tube 1332 And upper tube 1331 is not provided with, or down tube 1332 is not connected to head tube 131, but standpipe 132 is extended to by upper tube 1331, this In be not limited.The connection of lower fork 122 is attached to down tube 1332 by the present embodiment simultaneously so that upper fork 121, the lower fork of interconnection 122nd, down tube 1332, head tube 131 and upper tube form a closed space, make to connect between bicycle each several part it is even closer, Certain the utility model other embodiment lower fork 122 can also be different from the present embodiment, for example, lower fork 122 can also be with upper fork 121 are connected to the diverse location of standpipe 132 simultaneously.

121 are pitched in the connection of reinforcement 14 two and positioned at the top (with reference to figure 2) of the opposite position of rear rim 21, can shared The stress of fork 121 on two, while fork 121 on two is more uniformly stressed, further increase the intensity of vehicle frame 1.

As shown in figure 1, rear wheel 2 includes rear rim 21, the hind axle 22 on the central axis of rear rim 21, both ends point Rear rim 21 and some rear spokes 23 on hind axle 22 are not connected to.Rear rim 21 is circular tube shaped.Hind axle 22 is through driven Transmit belt wheel 42.Spoke 23 is divided into two groups after some, in the closed space formed positioned at rear rim 21, and 23 liang of spoke after two groups End is all connected with rear rim 21 and hind axle 22.Rear wheel 2 rotates under the drive of transmission system 4 to move ahead.

As shown in figure 1, handlebar 3 includes installation portion 31 and the guide part 32 being connected on installation portion 31.Installation portion 31 from Head tube 131 is inserted in head tube upper end, and then handlebar 3 is attached into head tube 131.Guide part 32 controls the travel direction of bicycle, makes User controls the direction of vehicle frame 1 being connected with the installation portion 31 of handlebar 3, and then control by controlling the direction of guide part 32 of handlebar 3 The advance of the front vehicle wheel and the rear wheel 2 being attached between two back vents 12 that are attached between two limiting sections 112 of front fork 11 Or the direction retreated.

As shown in figure 3, transmission system 4 includes axis 41 and connects the conveyer belt 42 of axis 41 and hind axle 22, also wrap Include and actively transmit belt wheel 43 and driven belts wheel 44.Specifically, axis 41, which runs through and connected, actively transmits belt wheel 43, trailing wheel Axle 22 runs through and connects driven belts wheel 44, and conveyer belt 42 and a back vent 12 are located at the same side of rear rim 21, and transmit Band 42, which is directly socketed in, actively to be transmitted on belt wheel 43 and driven belts wheel 44, and then axis 41 is connected with hind axle 22. Axis 41 connects pedal, and when user scrunches pedal, axis 41 drives the synchronous axial system of drive pulley 43, drive pulley 43 drive driven belts wheel 44 to rotate by conveyer belt 42, and driven belts wheel 44 drives the synchronous axial system of hind axle 22, and then The rotation of rear wheel 2 is driven to move ahead, rear wheel 2, which rotates to move ahead, drives front vehicle wheel rotation to move ahead so that whole bicycle moves ahead.

To sum up, compared with prior art, the bicycle that the present embodiment provides, is located at the same side of rear rim 21 with conveyer belt 42 Back vent 12 and main body of vehicle frame 13 form a back vent space S, whole transmission belt 12 be located at the periphery of back vent space S so that biography Dynamic band 12 solves back vent 12 and decomposes difficult problem without pass through back vent space S.

Embodiment of the present utility model is the foregoing is only, is not limited to the utility model.For this area For technical staff, the utility model can have various modifications and variations.All institutes within spirit of the present utility model and principle Any modification, equivalent substitution and improvements of work etc., it should be included within right of the present utility model.

Claims (10)

1. a kind of bicycle, including vehicle frame, front vehicle wheel, rear wheel, handlebar, vehicle seat, transmission system and pedal；The vehicle frame Including front fork, back vent and the main body of vehicle frame of the connection front fork and back vent, the front vehicle wheel is attached to the front fork, the car And vehicle seat be attached to the main body of vehicle frame；The rear wheel includes rear rim and the hind axle being connected with the rear rim, The hind axle is located on the rear rim central axis, and the hind axle is attached to the back vent；It is characterized in that, described Transmission system includes the integral type conveyer belt for connecting the axis of the pedal and the connection axis and the hind axle, with The conveyer belt is located at the back vent of rear rim the same side and the main body of vehicle frame forms a back vent space, the whole transmission belt Positioned at the periphery in the back vent space.

2. bicycle according to claim 1, it is characterised in that the back vent include be connected with each other upper fork and lower fork with And pitched by the extension of the upper fork and the extension of lower fork junction, the upper fork and lower fork are connected to the main body of vehicle frame, described Extension fork is connected to the hind axle.

3. bicycle according to claim 2, it is characterised in that when the bicycle is positioned over a reference plane, by benchmark It is direction straight up facing to the direction of bicycle, the upper fork and lower fork that rear rim the same side is located at the conveyer belt are overall It is arranged above the whole conveyer belt.

4. bicycle according to claim 2, it is characterised in that the upper fork and lower fork are tubulose, the extension Pitch as sheet.

5. bicycle according to claim 4, it is characterised in that the extension fork is provided with some perforates.

6. bicycle according to claim 1, it is characterised in that the back vent quantity is two, two back fork structure It is identical and symmetrically split wheel rim both sides in the rear.

7. bicycle according to claim 6, it is characterised in that reinforcement, the reinforcement are formed between two back vent Pitched in muscle connection two and positioned at the top of the rear rim.

8. bicycle according to claim 2, it is characterised in that the main body of vehicle frame includes head tube, standpipe and connection The branch pipe of the head tube and standpipe, the lower end and upper end of head tube are separately installed with the front fork and the handlebar, standpipe upper end peace Equipped with vehicle seat, and the upper fork is attached to the standpipe.

9. bicycle according to claim 8, it is characterised in that under the branch pipe is including upper tube and under upper tube Pipe, the lower fork are attached to the down tube.

10. bicycle according to claim 1, it is characterised in that the conveyer belt is belt.