CN108032955A - Bicycle chain puller mounting structure and bicycle - Google Patents
Bicycle chain puller mounting structure and bicycle Download PDFInfo
- Publication number
- CN108032955A CN108032955A CN201711480122.5A CN201711480122A CN108032955A CN 108032955 A CN108032955 A CN 108032955A CN 201711480122 A CN201711480122 A CN 201711480122A CN 108032955 A CN108032955 A CN 108032955A
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- China
- Prior art keywords
- derailleur
- stretching unit
- bicycle
- back vent
- sprocket wheel
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- Pending
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- 230000007246 mechanism Effects 0.000 claims description 7
- 230000006378 damage Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000002633 protecting effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
- B62M9/124—Mechanisms for shifting laterally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
- B62M9/128—Accessories, e.g. protectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/16—Tensioning or adjusting equipment for chains, belts or the like
Abstract
The present invention provides a kind of bicycle chain puller mounting structure and bicycle, and bicycle chain puller mounting structure includes vehicle frame, rides on hub spindle between the first back vent and the second back vent of vehicle frame, first sprocket wheel at middle part for being rotatably connected to vehicle frame, the hub shell for being sleeved on hub spindle and being rotatably coupled with hub spindle, the flywheel group, derailleur and the chain being sleeved in the first sprocket wheel, flywheel group and derailleur that are sleeved in hub shell.Derailleur is installed on the first back vent, its stretching unit between hub shell and the first back vent, when vehicle frame is in erectility, stretching unit is located across below the horizontal plane of the axis of hub spindle, and stretching unit is located across the vertical plane of the vertical plane of the axis of hub spindle and the axis through the first sprocket wheel.And include the bicycle of the bicycle chain puller mounting structure.The bicycle chain puller mounting structure and bicycle are respectively provided with that simple in structure, security is good and the advantages of derailleur being prevented to be subject to directly to hit.
Description
Technical field
The present invention relates to technical field of bicycles, is to be related to a kind of bicycle chain puller mounting structure and bag specifically
Include the bicycle of the bicycle chain puller mounting structure.
Background technology
The rear chiain-moving device of bicycle is fitted in after cycle frame on chain stay, for the combination speed change installed with bicycle
Gear is engaged, and is stirred chain by rear chiain-moving device and is engaged with gear of different sizes, and then realizes the shifted of bicycle.
In bicycle shift, people pull shift cable by gear shift adjuster, drive the link mechanism displacement of rear chiain-moving device
Chain guide deviates, so as to promote chain to be engaged from different gears.The rear chiain-moving device of bicycle is mostly installed at mountainous region certainly
In driving or road cycling, meets the needs of people's movement.
But the guide chain plate of existing rear chiain-moving device is all directed towards bicycle tail setting in use so that from
The vehicle frame of driving can not protect guide chain plate, cause guide chain plate exposed outside vehicle frame, easily hit be subject to foreign object.And by
It is a movable part in guide chain plate, is subject to easily to be deformed during external impact force, so that cause it to be inserted into after deforming in trailing wheel,
Cause unexpected brake so that jockey's tumble injury, there are security risk.In addition, existing bicycle derailleur is installed on bicycle
When on vehicle frame, be directly installed on the outside of the rear chain stay of cycle frame so that bicycle derailleur easily collided with or
Hit, particularly when there is falling car, bicycle derailleur can directly be hit with ground, cause bicycle derailleur
Easily damage, and easily artificially destroyed.
The content of the invention
To solve the above-mentioned problems, the main object of the present invention be to provide it is a kind of it is simple in structure, security is good and can prevent
The bicycle chain puller installing mechanism that only derailleur is directly hit.
It is a further object of the present invention to provide one kind is simple in structure, security is good and can prevent derailleur from directly being hit
The bicycle hit.
In order to realize the main object of the present invention, the present invention provides a kind of bicycle chain puller mounting structure, including vehicle frame,
There is two the first back vents being oppositely arranged and the second back vent, hub spindle to ride on for hub spindle, the first sprocket wheel and hub shell, vehicle frame
Between first back vent and the second back vent, the first sprocket wheel is rotatably connected to the middle part of vehicle frame, wheel hub valve jacket around the axis of itself
On hub spindle, and hub shell is rotatably coupled around the axis of hub spindle with hub spindle, wherein, bicycle chain puller installation
Structure further includes flywheel group, derailleur and chain, after flywheel group is sleeved in hub shell, and flywheel group is located at hub shell and first
Between fork, derailleur is installed on the first back vent, and derailleur includes stretching unit, and stretching unit is located at hub shell and the first back vent
Between, and when vehicle frame is in erectility, stretching unit is located across below the horizontal plane of the axis of hub spindle, and be tensioned single
Member is located across the first vertical plane of the axis of hub spindle and through the second vertical plane of the axis of the first sprocket wheel, and first is perpendicular
Face directly and be mutually perpendicular to horizontal plane, the second vertical plane is mutually perpendicular to horizontal plane, and chain is sleeved on the first sprocket wheel, flywheel group and dials
On chain device.
Therefore the stretching unit of derailleur is provided through below the horizontal plane of the axis of hub spindle, Yi Jishe
Put the first vertical plane in the axis through hub spindle and the second vertical plane of the axis through the first sprocket wheel, can avoid
Jockey contacts in ride with the stretching unit of derailleur, and then avoids causing the stretching unit of derailleur and derailleur
Damage, meanwhile, by being set to the position of derailleur so that derailleur is kept away between the first back vent and the second back vent
It is exposed outside vehicle frame to exempt from derailleur, effectively can prevent derailleur from being hit, so as to be protected to derailleur, prevents
Derailleur is collided with or is hit, and enables to derailleur to be not easy by artificial destruction, and then avoids stretching unit due to being rushed
Hit deformation and be inserted into trailing wheel, prevent from causing bicycle surprisingly to brake in ride, play a protective role to jockey.Can
See, which has the advantages that simple in structure, security is good, and derailleur can be prevented to be subject to directly
Hit, avoid stretching unit from being impacted and deformed.
Further scheme is that vehicle frame also has shield, and shield cover is closed on the first sprocket wheel, stretching unit.
Therefore shield can further prevent the stretching unit of derailleur to be subject to external impacts so that derailleur
The activity of stretching unit is always positioned in the protection domain of shield, overcomes existing derailleur inconvenience to set shield to protect it
The problem of shield.
Further scheme is that bicycle chain puller mounting structure further includes selector and shift cable, selector installation
On the handlebar of vehicle frame, shift cable is connected between selector and derailleur.
Further scheme is that selector is handle selector or refers to group selector.
Therefore selector can be adjusted the position of the stretching unit of derailleur by shift cable, and then make
Chain can be stirred by obtaining stretching unit, so that chain is entered to switch, engaged between each sprocket wheel of flywheel group.
Further scheme is that derailleur further includes fixed frame and wobble component, and fixed frame is connected on the first back vent,
Wobble component is hinged between fixed frame and stretching unit, and stretching unit moves between each second sprocket wheel of flywheel group.
Therefore stretching unit can ensure that chain is also when chain sprocket wheel different from flywheel group is engaged
Enough tensile forces can be kept, and then prevent chain from coming off in the process of running, are reduced in bicycle operational process
Failure rate.And the hinged wobble component between fixed frame and stretching unit so that stretching unit can carry out certain with respect to cone pulley
The swing of angle, so that stretching unit can be adjusted according to the position of engagement of chain the second sprocket wheel different from flywheel group
Itself relative position with flywheel group, and then avoid chain from being distorted, further prevent chain from coming off in operation.
Further scheme is that stretching unit includes mounting bracket, chain wheel assembly and elastic component, mounting bracket and pendulum
Dynamic member hinges, a chain wheel assembly includes guide chain plate and two guide wheels, guide chain plate are hinged with mounting bracket, and guide chain plate can be opposite
Or opposite flywheel group is swung, two guide wheels are rotatably coupled rotating around the axis of itself and guide chain plate, and two guide wheel difference
Positioned at the both ends of guide chain plate, elastic component is connected between mounting bracket and guide chain plate.
Therefore mounting bracket is hinged with wobble component so that mounting bracket can opposing oscillatory component swung,
And then two relative positions between guide wheel and chain in mounting bracket are adjusted, and elastic component can be according to chain and flywheel group
The positions of engagement of different sprocket wheels adjust the relative position of guide chain plate and flywheel group so that chain can have it is enough pre-
Clamp force, avoids chain from coming off in the process of running.
Further scheme is that the distance between shield and stretching unit are 12 centimetres to 18 centimetres.
Therefore maintained a certain distance between stretching unit and shield, so that when shield is knocked and produces
During deformation, there can be certain deformation space without involving stretching unit at once, there is preferable security, can be into one
Step plays a protective role stretching unit, and further reduces the possibility that stretching unit is hit.
In order to realize another object of the present invention, the present invention provides a kind of bicycle, and bicycle includes a bicycle and dials
Chain device mounting structure, bicycle chain puller installing mechanism include vehicle frame, hub spindle, the first sprocket wheel and hub shell, and vehicle frame has two
A row rides between the first back vent and the second back vent the first back vent and the second back vent of setting, hub spindle, the first sprocket wheel around
The axis of itself is rotatably connected to the middle part of vehicle frame, and hub shell is sleeved on hub spindle, and hub shell is around the axis of hub spindle
Line is rotatably coupled with hub spindle, wherein, bicycle chain puller mounting structure further includes flywheel group, derailleur and chain, flies
Wheel group is sleeved in hub shell, and flywheel group, between hub shell and the first back vent, derailleur is installed on the first back vent, is dialled
Chain device includes stretching unit, and stretching unit is tensioned between hub shell and the first back vent, and when vehicle frame is in erectility
Unit is located across below the horizontal plane of the axis of hub spindle, and stretching unit is located across the first vertical of the axis of hub spindle
Face and through the second vertical plane of the axis of the first sprocket wheel, the first vertical plane is mutually perpendicular to horizontal plane, the second vertical plane
It is mutually perpendicular to horizontal plane, chain is sleeved in the first sprocket wheel, flywheel group and derailleur.
Therefore the stretching unit of derailleur is provided through below the horizontal plane of the axis of hub spindle, Yi Jishe
Put the first vertical plane in the axis through hub spindle and the second vertical plane of the axis through the first sprocket wheel, can avoid
User contacts in ride with the stretching unit of derailleur, and then avoids making the stretching unit of derailleur and derailleur
Into damage, meanwhile, pass through and the position of derailleur set so that derailleur between the first back vent and the second back vent, and then
Avoid derailleur exposed outside vehicle frame, effectively can prevent derailleur from being hit, so as to be protected to derailleur, prevent
Only derailleur is collided with or is hit, and enables to derailleur to be not easy by artificial destruction, and then avoids stretching unit due to being subject to
Blastic deformation and be inserted into trailing wheel, prevent from causing bicycle surprisingly to brake in ride, play a protective role to jockey.Can
See, which has the advantages that simple in structure, security is good, and can prevent derailleur from directly being hit, and avoids being tensioned
Unit is impacted and deformed.
Further scheme is that vehicle frame also has shield, and shield cover is closed on the first sprocket wheel, stretching unit.
Therefore shield can further prevent the stretching unit of derailleur to be subject to external impacts so that derailleur
The activity of stretching unit is always positioned in the protection domain of shield, overcomes existing derailleur inconvenience to set shield to protect it
The problem of shield.
Further scheme is that bicycle chain puller mounting structure further includes selector and shift cable, selector installation
On the handlebar of vehicle frame, shift cable is connected between selector and derailleur.
Therefore selector can be adjusted the position of the stretching unit of derailleur by shift cable, and then make
Chain can be stirred by obtaining stretching unit, so that chain is entered to switch, engaged between each sprocket wheel of flywheel group.
Further scheme is that derailleur further includes fixed frame and wobble component, and fixed frame is connected on the first back vent,
Wobble component is hinged between fixed frame and stretching unit, and stretching unit moves between each second sprocket wheel of flywheel group.
Therefore stretching unit can ensure that chain is also when chain sprocket wheel different from flywheel group is engaged
Enough tensile forces can be kept, and then prevent chain from coming off in the process of running, are reduced in bicycle operational process
Failure rate.And the hinged wobble component between fixed frame and stretching unit so that stretching unit can carry out certain with respect to cone pulley
The swing of angle, so that stretching unit can adjust itself according to the position of engagement of chain sprocket wheel different from flywheel group
With the relative position of cone pulley, and then avoid chain from being distorted, further prevent chain from coming off in operation.
Brief description of the drawings
Fig. 1 is the structure chart of bicycle embodiment of the present invention.
Fig. 2 is the enlarged drawing at A in Fig. 1.
Fig. 3 is the partial view after the first clipped component of bicycle embodiment of the present invention.
Fig. 4 is the partial view after the second clipped component of bicycle embodiment of the present invention.
Fig. 5 is the partial view after the 3rd clipped component of bicycle embodiment of the present invention.
Fig. 6 is the structure chart of the derailleur of bicycle embodiment of the present invention.
Fig. 7 is the structure chart under another visual angle of the derailleur of bicycle embodiment of the present invention.
Fig. 8 is the sectional view of the derailleur of bicycle embodiment of the present invention.
Fig. 9 is the structure chart of the mounting bracket of the stretching unit of the derailleur of bicycle embodiment of the present invention.
Figure 10 is the structure chart of a chain wheel assembly for the stretching unit of the derailleur of bicycle embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Embodiment
Referring to figs. 1 to Fig. 3, bicycle 100 includes a bicycle chain puller mounting structure 10, wherein, bicycle dials chain
Device mounting structure 10 includes vehicle frame 1, hub spindle 2, hub shell 3, the first sprocket wheel 4, flywheel group 5, chain 6, derailleur 7, gearshift dress
Put 8 and shift cable.
Vehicle frame 1 includes two the first back vents 11 and the second back vent 12 being oppositely arranged, and hub spindle 2 is installed on the first back vent 11
And second between back vent 12, hub shell 3 is rotatably coupled around the axis of hub spindle 2 with hub spindle 2.Hub shell 3 passes through spoke
Wheel is formed with wheel rim, flywheel group 5 is sleeved in hub shell 3, and flywheel group 5 is located between 3 and first back vent 11 of hub shell.The
One sprocket wheel 4 is rotatably connected to the middle part of vehicle frame 1 around the axis of itself.
With reference to Fig. 4 and Fig. 5, derailleur 7 is fixedly mounted on the first back vent 11, and derailleur 7 includes stretching unit 71, tensioning
Unit 71 is located between 3 and first back vent 11 of hub shell, and when vehicle frame 11 is in erectility, stretching unit 71 is located across
Below the horizontal plane X of the axis of hub spindle 2, and stretching unit 71 is located across the first vertical plane Y of the axis of hub spindle 2 and wears
Cross between the second vertical plane of the axis of the first sprocket wheel 4, and the first vertical plane Y is mutually perpendicular to horizontal plane, the second vertical plane with
Horizontal plane is mutually perpendicular to, i.e. shown in Fig. 4 and Fig. 5, on the orthographic projection direction of bicycle 100, and the stretching unit of derailleur 7 71
In in the fourth quadrant IV of coordinate system.
For existing bicycle on orthographic projection direction, the stretching unit of derailleur is the third quadrant III positioned at coordinate system
It is interior, and since stretching unit 71 is a movable part, easily it is deformed when being subject to external impact force so that stretching unit 71
Easily it is knocked and is inserted into trailing wheel, causes unexpected brake, there are security risk.And the stretching unit 71 of derailleur 7 is set
Below the horizontal plane X of the axis through hub spindle 2, and make stretching unit 71 be located across hub spindle 2 axis first
Vertical plane Y and the second vertical plane of axis through the first sprocket wheel 4 so that vehicle frame 1 can be to derailleur 4 and stretching unit
71 play a protective role, and jockey can be avoided to be contacted in ride with the stretching unit 71 of derailleur 7, and from can preventing
Stretching unit 71 is knocked, and then avoids that derailleur 7 and stretching unit 71 are caused to damage.Meanwhile by derailleur 7
Position is set so that derailleur 7 is located between the first back vent 11 of vehicle frame 1 and the second back vent 12, and then avoids derailleur 7 exposed
It outside vehicle frame 1, effectively can prevent derailleur from being hit, and then derailleur 7 can be protected, prevent 7 quilt of derailleur
Collide with or hit, and enable to derailleur 7 to be not easy by artificial destruction.For example, when car occurs falling in bicycle 100, vehicle frame 1
First back vent 11 can prevent derailleur 7 and stretching unit 71 from directly being hit with ground, and then can avoid stretching unit
71 are impacted and are deformed, and are played a protective role to stretching unit 71.
Preferably, vehicle frame 1 also has shield 13, and the cover of shield 13 is closed on the first sprocket wheel 4, stretching unit 71,13 energy of shield
It is enough further to prevent the stretching unit 71 of derailleur 7 to be subject to external impacts so that the activity of the stretching unit 71 of derailleur 7 is all the time
In the protection domain of shield 13, the problem of overcoming the inconvenience of existing derailleur 7 to set shield to protect it.In addition,
The distance between shield 13 and stretching unit 71 are between 12 centimetres to 18 centimetres so that are deposited between stretching unit 71 and shield 13
In a certain distance so that when shield 13 is knocked and when being deformed, can have certain deformation space without
Involve stretching unit 71 at once, there is preferable security, and can further play a protective role to stretching unit 71, into one
Step reduces the possibility that stretching unit 71 is hit.
Chain 6 is sleeved between the first sprocket wheel 4, flywheel group 5 and derailleur 7.Specifically, with reference to Fig. 6 to Fig. 8, derailleur 7
Further include fixed frame 72, wobble component 73 and elastic component 74.Fixed frame 72 is fixedly connected for 11 with the first back vent, wobble component 73
It is hinged between fixed frame 72 and stretching unit 71, and stretching unit 71 moves between each second sprocket wheel of flywheel group 5.
Preferably, wobble component 73 includes connecting rod 731 and connecting rod 732, and the first end and fixed frame 72 of connecting rod 731 are hinged,
The second end of connecting rod 731 is hinged with stretching unit 71, and the first end and fixed frame 72 of connecting rod 732 are hinged, the second end of connecting rod 732
It is hinged with stretching unit 71, so that forming a hinge four-bar between stretching unit 71, fixed frame 72 and wobble component 73
Mechanism so that stretching unit 71 can carry out the swing of certain angle between each second sprocket wheel of flywheel group 5.As it can be seen that tensioning
Unit 71 can be moved by wobble component 73, so that stretching unit 71 can be according on chain 6 and flywheel group 5
The position of engagement of different second sprocket wheels adjusts the relative position of itself and flywheel group 5, and then avoids chain 6 from being distorted, and prevents
Chain 6 comes off in operation.
Selector 8 is installed on the handlebar 14 of vehicle frame 1, and shift cable is connected between selector 8 and derailleur 7.Specifically,
One is additionally provided with fixed frame 72 to be used to carry out shift cable wire casing 721 that is spacing, being oriented to, and the connecting rod of wobble component 73
Be provided with the retaining mechanism 733 for shift cable to be fixed on 731, retaining mechanism 733 be used for by the line cap of shift cable with
Connecting rod 731 is fixed so that jockey can control the winding of shift cable or release by selector 8, so that speed change
Line pulls connecting rod 731 to swing, so as to adjust the position of stretching unit 71 by wobble component 73 so that stretching unit 71 stirs chain
Bar 6 moves between the second sprocket wheel of difference of flywheel group, realizes the variable speed operation to bicycle 100.Elastic component 74 is connected to pendulum
Dynamic elastic component 74 is used to reset wobble component 73 between component 73 and fixed frame 72, and then auxiliary selector 8 is become
Speed.Preferably, selector 8, which can use handle selector or refer to, dials selector.
Stretching unit 71 can also ensure that when the second sprocket wheel different from flywheel group 5 of chain 6 is engaged, chain 6
Enough tensile forces can also be kept, and then prevent chain 6 from coming off in the process of running, bicycle 100 is reduced and ran
Failure rate in journey.Specifically, stretching unit 71 includes mounting bracket 711, chain wheel assembly 712 and elastic component 713.
With reference to Fig. 9, and Fig. 6 to Fig. 8 is combined, the connecting rod 731 and connecting rod 732 with wobble component 73 respectively of mounting bracket 711
Second end be hinged, and limiting section 7111 and accommodating chamber 7112 are provided with mounting bracket 711, accommodating chamber 7112 is used to accommodate bullet
Property part 713.
With reference to Figure 10, and Fig. 6 to 8 is combined, a chain wheel assembly 712 includes guide chain plate 7121 and two guide wheels 7125, guide chain
The first end of plate 7121 is hinged with mounting bracket 711, and the first end of guide chain plate 7121 is covered in accommodating chamber 7112, guide chain plate
7121 can relatively or contrarily flywheel group 5 swing.Two guide wheels 7125 are rotatable rotating around the axis of itself and guide chain plate 7121
Connection, and two guide wheels 7125 are located at the both ends of guide chain plate 7121 respectively.The both ends of elastic component 713 respectively with mounting bracket 711
Connected with the first end of guide chain plate 7121, the swing that elastic component 713 is used for guide chain plate 7121 resets, and carries out so that winding
Chain 6 between two guide wheels 7125 has enough pretightning forces, prevents bicycle 100 in ride due to chain 6
Tensile force it is too small and chain 6 occur and be disengaged from 5 and/or first sprocket wheel 4 of flywheel group, and then avoid chain in ride
6 situations about coming off occur.Wherein, the guide wheel 7125 on guide chain plate 7121 close to 711 one end of mounting bracket is chain cable fairlead, it is used for
Change the crooked radian of the chain 6 between flywheel group 5 and stretching unit 71, play guiding role to chain 6, and guide chain plate 7121
The upper guide wheel 7125 away from 711 one end of mounting bracket is tensioning wheel, it is used to compress chain 6 so that chain 6 has foot
Enough pretightning forces, and then prevent chain 6 from coming off in the process of running.
In addition, the side of guide chain plate 7121 towards mounting bracket 711 is provided with limited block 7122, limited block 7122 is towards peace
Fill the extension of stent 711 ground to set, and limited block 7122 can turn to limiting section around the hinge shaft of mounting bracket 711 and guide chain plate 7121
7111.Limiting section 7111 is set in mounting bracket 711 and limited block 7122 is set on guide chain plate 7121, enabling to opening
The swing progress of chain wheel assembly 712 is spacing, and then prevents a chain wheel assembly 712 to be rocked in above-mentioned third quadrant III, so as to keep away
It is exposed outside the region that vehicle frame 1 is protected to exempt from stretching unit 71.
Preferably, the second end of guide chain plate 7121 is additionally provided with protecting board piece 7123 and protecting board piece 7124,7123 He of protecting board piece
Protecting board piece 7124 is spacing for being carried out to the chain 6 being engaged on guide wheel 7125, and then prevents chain 6 from departing from and guide wheel 7125
Engagement, ensure that the reliability of the work of derailleur 7.
To sum up, bicycle chain puller mounting structure and bicycle provided by the invention are respectively provided with simple in structure, safety
The advantages of property is good, and can prevent that derailleur from directly being hit, there is good protecting effect to derailleur.
Finally it is emphasized that the foregoing is merely the preferred embodiment of the present invention, it is not intended to limit the invention, it is right
For those skilled in the art, the present invention can have various change and change, within the spirit and principles of the invention,
Any modification, equivalent substitution, improvement and etc. done, should all be included in the protection scope of the present invention.
Claims (10)
1. bicycle chain puller mounting structure, including
Vehicle frame, the vehicle frame have two the first back vents and the second back vent being oppositely arranged；
Hub spindle, the hub spindle are ridden between first back vent and second back vent；
First sprocket wheel, first sprocket wheel are rotatably connected to the middle part of the vehicle frame around the axis of itself；
Hub shell, the hub shell are sleeved on the hub spindle, and the hub shell around the hub spindle axis with it is described
Hub spindle is rotatably coupled；
It is characterized in that, the bicycle chain puller mounting structure further includes：
Flywheel group, the flywheel group are sleeved in the hub shell, and the flywheel group is located at the hub shell and described first
Between back vent；
Derailleur, the derailleur are installed on first back vent, and the derailleur includes stretching unit, the stretching unit
Between the hub shell and first back vent, and when the vehicle frame is in erectility, the stretching unit is located at
Through below the horizontal plane of the axis of the hub spindle, and the stretching unit is located across the first of the axis of the hub spindle
Vertical plane and the second vertical plane of axis through first sprocket wheel, first vertical plane and the horizontal plane are mutual
Vertically, second vertical plane is mutually perpendicular to the horizontal plane；
Chain, the chain are sleeved in first sprocket wheel, the flywheel group and the derailleur.
2. bicycle chain puller mounting structure according to claim 1, it is characterised in that：
The vehicle frame also has shield, and the shield cover is closed on first sprocket wheel, the stretching unit.
3. bicycle chain puller mounting structure according to claim 2, it is characterised in that：
The bicycle chain puller mounting structure further includes：
Selector, the selector are installed on the handlebar of the vehicle frame；
Shift cable, the shift cable are connected between the selector and the derailleur.
4. bicycle chain puller mounting structure according to claim 3, it is characterised in that：
The selector is handle selector or refers to group selector.
5. bicycle chain puller mounting structure according to any one of claims 1 to 4, it is characterised in that：
The derailleur further includes：
Fixed frame, the fixed frame are connected on first back vent；
Wobble component, the wobble component are hinged between the fixed frame and the stretching unit, and the stretching unit is in institute
State and move between each second sprocket wheel of flywheel group.
6. bicycle chain puller mounting structure according to claim 2, it is characterised in that：
The distance between the shield and the stretching unit are 12 centimetres to 18 centimetres.
7. bicycle, the bicycle includes a bicycle chain puller mounting structure, the bicycle chain puller installing mechanism
Including：
Vehicle frame, the vehicle frame have first back vent and second back vent of two rows to setting；
Hub spindle, the hub spindle are ridden between first back vent and second back vent；
First sprocket wheel, first sprocket wheel are rotatably connected to the middle part of the vehicle frame around the axis of itself；
Hub shell, the hub shell are sleeved on the hub spindle, and the hub shell around the hub spindle axis with it is described
Hub spindle is rotatably coupled；
It is characterized in that, the bicycle chain puller mounting structure further includes：
Flywheel group, the flywheel group are sleeved in the hub shell, and the flywheel group is located at the hub shell and described first
Between back vent；
Derailleur, the derailleur are installed on first back vent, and the derailleur includes stretching unit, the stretching unit
Between the hub shell and first back vent, and when the vehicle frame is in erectility, the stretching unit is located at
Through below the horizontal plane of the axis of the hub spindle, and the stretching unit is located across the first of the axis of the hub spindle
Vertical plane and the second vertical plane of axis through first sprocket wheel, first vertical plane and the horizontal plane are mutual
Vertically, second vertical plane is mutually perpendicular to the horizontal plane；
Chain, the chain are sleeved in first sprocket wheel, the flywheel group and the derailleur.
8. bicycle according to claim 7, it is characterised in that：
The vehicle frame also has shield, and the shield cover is closed on first sprocket wheel, the stretching unit.
9. bicycle according to claim 8, it is characterised in that：
The bicycle chain puller mounting structure further includes：
Selector, the selector are installed on the handlebar of the vehicle frame；
Shift cable, the shift cable are connected between the selector and the derailleur.
10. bicycle according to any one of claims 7 to 9, it is characterised in that：
The derailleur further includes：
Fixed frame, the fixed frame are connected on first back vent；
Wobble component, the wobble component are hinged between the fixed frame and the stretching unit, and the stretching unit is in institute
State and move between each second sprocket wheel of flywheel group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480122.5A CN108032955A (en) | 2017-12-29 | 2017-12-29 | Bicycle chain puller mounting structure and bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480122.5A CN108032955A (en) | 2017-12-29 | 2017-12-29 | Bicycle chain puller mounting structure and bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108032955A true CN108032955A (en) | 2018-05-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711480122.5A Pending CN108032955A (en) | 2017-12-29 | 2017-12-29 | Bicycle chain puller mounting structure and bicycle |
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| Country | Link |
|---|---|
| CN (1) | CN108032955A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436179A (en) * | 2018-12-05 | 2019-03-08 | 珠海迪瑞乐科技有限公司 | Bicycle dials chain structure and bicycle |
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| CN109436179A (en) * | 2018-12-05 | 2019-03-08 | 珠海迪瑞乐科技有限公司 | Bicycle dials chain structure and bicycle |
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Address after: 519000 building B-2, No. 8, Honghui fifth road, Shuanglin District, LIANGANG Industrial Zone, Jinwan District, Zhuhai City, Guangdong Province Applicant after: Zhuhai Blueprint Sports Technology Co.,Ltd. Address before: 519090 room 312-43, third floor, aviation new town planning exhibition hall, Jinwan District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI LTWOO CONTROLLER TECHNOLOGY CO.,LTD. |
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