CN205837119U - There is the bicycle chain puller of protection device - Google Patents
There is the bicycle chain puller of protection device Download PDFInfo
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- CN205837119U CN205837119U CN201620835502.0U CN201620835502U CN205837119U CN 205837119 U CN205837119 U CN 205837119U CN 201620835502 U CN201620835502 U CN 201620835502U CN 205837119 U CN205837119 U CN 205837119U
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- power
- torsion spring
- connecting rod
- protection device
- follower
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Abstract
This utility model relates to a kind of bicycle chain puller with protection device, including: the driving mechanism of transmission power, power intake thereon is connected with the outfan of derailleur electro-motor；For dialling the follower of chain, it is connected to the clutch end of described driving mechanism；It is characterized in that, also include: resilient protection mechanism, its two ends are connected to clutch end and the power intake of described driving mechanism of described driving mechanism；The forward elastic deformation of described resilient protection mechanism drives described follower to carry out dialling chain, and described follower is absorbed reverse power by reverse power, the most described resilient protection mechanism.Its effect: play cushioning effect by arranging protection device; absorb forward driving force and reverse resistance or the shock of unfavorable external force; be conducive to the element in protection power transmission path; reduce the risk damaged; and protection device simple in construction; bi-directional force can be absorbed again cleverly, it is to avoid intense impact occurs.
Description
Technical field
This utility model relates to a kind of bicycle chain puller with protection device.
Background technology
A kind of mode that riding bicycle has become as a lot of people trip, moves and entertain.No matter be used for going on a journey, move or
Being amusement, bicycle Producers are all continuously improving each parts of bicycle, improve the comfortable of cycling
Property and ruggedness, reduce maintenance rate.Recently, the multiple electronic unit for bicycle occurred, wherein actuating device is especially
There occurs significantly change, some bicycles control derailleur already equipped with electronic installation, in order to make cyclist become when cycling
Convenient simple and safety.The derailleur that electronic installation controls includes derailleur and rear chiain-moving device；One position detecting apparatus,
The position of chain sheet is dialled when derailleur for detecting；One motor, for drive derailleur dial chain sheet relative to sprocket shaft inwardly or
Outside motion；One controls processor, (includes handle, position detecting apparatus, the number that battery is transmitted for Treatment Analysis data
According to) control motor thus drive derailleur dial chain sheet be placed on correct position.
Motor is generally connected with power modulating device, transmitting device, drives and dials chain sheet at sprocket wheel the most outwardly or inwardly
Motion.Regrettably: when sprocket wheel slowly rotates or be static, derailleur carries out dialling chain speed governing, and power transmission component is easily subject to
To reverse resistance (transmitting the in opposite direction of power with power transmission component).Its resistance comes from the design and craft of sprocket wheel；Many institutes
Having at least one auxiliary on known sprocket wheel and dial chain element (as shown in the label 85 in Fig. 1), this unit effect is to assist chain
Bar cochain or lower chain, owing to this unit is not that continuous print is also impossible to be continuous print, so occurring in phase when dialling chain movement
Time between adjacent unit, owing to chain can not cochain or lower chain timely.This state lower chain can hinder group chain sheet just to move to
Really position, motor drives again dials chain sheet arrival tram, and now chain produces a bigger resistance to dialling chain sheet, this
Resistance can be transferred to power modulating device or transmitting device or motor, and now forward driving force and reverse resistance send punching
Hit, cause the component wear in power transmission path；Another kind of situation is when there being disadvantageous External Force Acting, as fallen car, shock
When occurring etc. situation, disadvantageous external force the most also can be transferred on power transfer element, causes the element in power transmission path
The risk damaged.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above of prior art existence and provide one to have protection device
Bicycle chain puller, forward driving force is buffered and drives follower carry out dial chain, it is also possible to absorb reverse resistance
Or the shock of unfavorable external force, it is to avoid forward driving force and reverse resistance send and collide, and are conducive in protection power transmission path
Element, the risk that minimizing damages, and protection device simple in construction, bi-directional force can be absorbed again cleverly, it is to avoid occur strong
Strong impact.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs:
There is the bicycle chain puller of protection device, including:
The driving mechanism of transmission power, power intake thereon is connected with the outfan of derailleur electro-motor；
For dialling the follower of chain, it is connected to the clutch end of described driving mechanism；
It is characterized in that, also include:
Resilient protection mechanism, its two ends are connected to the clutch end of described driving mechanism and described driving mechanism
Power intake；
The forward elastic deformation of described resilient protection mechanism drives described follower to carry out dialling chain, and described follower is subject to
To reverse power, the most described resilient protection mechanism absorbs reverse power.
Play cushioning effect by arranging resilient protection mechanism, buffer and drive follower to enter forward driving force
Row dials chain, it is also possible to absorb reverse resistance or the shock of unfavorable external force, it is to avoid forward driving force and reverse resistance send and collide, and have
It is beneficial to the element in protection power transmission path, the risk that minimizing damages, and protection device simple in construction, can inhale cleverly again
Receive bi-directional force, it is to avoid intense impact occurs.
As improving further and supplementing technique scheme, this utility model uses following technical measures: described
Driving mechanism include the scroll bar by described electrical motor driven, the worm gear driven by described scroll bar, described resilient protection mechanism
It is arranged on the outfan of described worm gear.
Using turbine, the type of drive of worm screw, motor drives turbine, worm screw can transmit power, when follower is subject to by forward
During to the shock of direction resistance or unfavorable external force, turbine, worm screw can not backwards rotation, be conducive to protecting motor, be also beneficial to prevent
Only chain releasing.
As preferably, the scheme of resilient protection mechanism at least two kinds:
The described resilient protection mechanism of the first scheme includes:
Swing component, its input is connected to the outfan of described driving mechanism；
Transmission arm, is connected to the outfan of described transmission arm, and the turning end of transmission arm is connected to the input of follower；
Elastomer, it is clamped between described swing component and transmission arm, defeated to follower by the elastic deformation of elastomer
Go out power.
In resilient protection mechanism, play cushioning effect for elastomer.
Wherein, the concrete structure of elastomer at least has following three kinds of situations:
The first scheme: described elastomer is elastic sphere, it is clamped between described swing component and transmission arm.
Alternative plan: described elastomer is elastic link, one end is connected to the swinging end of described swing component, and the other end connects
Input at described transmission arm；
Third program: described elastomer is elastic linked component, including first connecting rod, is connected to first connecting rod outfan
Second connecting rod and spring, the input of described first connecting rod is connected on the swinging end of described swing component, and described second
The outfan of connecting rod is connected to the input of described transmission arm, described spring be arranged on described second connecting rod and described transmission arm it
Between.
As preferably, when elastic position spheroid, described swing component arranges the first groove corresponding to elastomer position；
On described transmission arm, the second groove is set corresponding to elastomer position,
Described first groove and the second groove fasten, and form the receiving chamber of enclosed, and described elastomer is placed in receiving intracavity；
The outfan of described swing component is arranged on the second groove top.
Described elastic component be contained in the first groove, second groove formed cavity in, it is to avoid elastic component stress and depart from pendulum
Moving part and the clamping action of transmission arm, make described elastic component the most spacing between described swing component and described transmission arm.
During use, the driving force on power-driven mechanism is sequentially delivered to swing component and transmission arm, the biography of this driving force
Active force on defeated path is positive force, and in an angle β between swing component and transmission arm, driving force is transmitted to four by transmission arm again
Linkage, enables to dial chain sheet and correctly dials chain.When dialling chain sheet by reverse resistance, reverse resistance is by quadric chain
Transmission, makes transmission arm be subject to reverse resistance, and swing component is again by positive force, and the angle β between transmission arm and swing component diminishes, pressure
Compel elastic sphere between the two so that the strength of both sides is offset, and opposition is released, it is to avoid to power-driven machine
Parts on structure cause damage.By the setting of protection device, it is possible to the counteracting interaction force worked as in time, accurately, ingeniously, for electricity
Son controls the shutdown of device provides the operating time, it is to avoid each associated components damages.
Additionally, for corresponding elastic sphere, it is also possible to substitute with described elastic cylinder.
The described resilient protection mechanism of first scheme is torsion spring, and it is arranged on the input of described follower, power
Transmission mechanism transmits positive force and makes torsion spring deformation, and the torsion spring of deformation drives follower to dial chain；
Follower is absorbed reverse power by reverse power, described torsion spring.
Follower is quadric chain, including:
Connecting rod base, its power intake is connected with the outfan of described driving mechanism, and is driven it by described driving mechanism
Swing；
Dialling chain sheet, its outfan is for dialling chain；
Upper connecting rod and lower link, the two ends of each connecting rod are connected to connecting rod base and dial on chain sheet；
Described torsion spring is arranged on the power intake of described connecting rod base.
The power intake of described connecting rod base arranges power input shaft；
Described upper connecting rod is connected on described power input shaft；
Described torsion spring is nested with at power input shaft, and one end of described torsion spring is fixed on described power input shaft, and the other end is solid
It is scheduled on described upper connecting rod.
In other words, one end of torsion spring rotates with power input shaft, and the other end, with described upper link rotatable, will dial chain sheet
The resistance born or vibration transfer described torsion spring to and bear.
During use, power-driven mechanism effect is positive force with the active force of torsion spring, and torsion spring is with power input shaft just
To transmission, make to dial chain sheet correct operation.And when dialling chain sheet by reverse resistance, upper connecting rod makes torsion spring rotate backward, and turns round simultaneously
Power is rotated forward so that positive force and opposite force are offset, and opposition is released, it is to avoid to power drive on spring
Parts in mechanism cause damage.By the setting of protection device, it is possible to the counteracting interaction force worked as in time, accurately, ingeniously, for
The shutdown of electronic-controlled installation provides the operating time, it is to avoid each associated components damages.
The upper connection end of described upper connecting rod is provided with power input shaft grafting axis hole, is provided with described torsion spring and holds in described axis hole
Receiving chamber, described torsion spring is placed in receiving chamber, and one end of described torsion spring is fixed on described upper connecting rod, and described power input shaft sets
Putting a flange collar, the other end of described torsion spring is fixed in described flange collar.Torsion spring is made to be built in power input shaft and the assembling of upper connecting rod
In attaching space, beneficially compact conformation, be conducive to protection torsion spring to avoid by extraneous foreign body and disturb, it is possible to torsion is provided normally
Power.
In order to make torsion spring firmly, stably be arranged in power input shaft and upper connecting rod assembling attaching space, described torsion
Spring receiving arranges draw-in groove in chamber, and described torsion spring end is fixed in draw-in groove, and described flange collar is provided with fixing hole, described torsion spring end
Insert fixing hole and be fixed in fixing hole.
This utility model has the advantages that 1, play cushioning effect by arranging protection device, absorbs forward transmission
Power and reverse resistance or the shock of unfavorable external force, be conducive to the element in protection power transmission path, reduces the risk damaged, and
And protection device simple in construction, bi-directional force can be absorbed again cleverly, it is to avoid intense impact occurs.2, the setting of protection device
Position is ingenious, and each parts can be protected to avoid being affected by unfavorable external force and damaging, and can make again power-driven mechanism and four even simultaneously
Linkage accurate delivery driving force, it is possible to make to dial chain sheet and accurately dial chain speed governing.3, the structure of protection device design is ingenious, Ji Nengchong
Protective effect is waved in distribution, again can stable absorption bi-directional force, it is to avoid by ectocine.4, protection device is at least two kinds of sides
Case, for torsion spring or be the combination of transmission arm, swing component and elastic component, torsion spring and elastic component are the main force absorbing forward and reverse effect
Parts.5, the scheme of elastic component the most at least three kinds of schemes, can select concrete scheme according to practical situation, improve applicable
Property.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that this utility model is applicable to bicycle.
Fig. 2 is with the structural representation of torsion spring scheme in this utility model.
Fig. 3 is the broken section structural representation relating to torsion spring assembling scheme in Fig. 2.
Fig. 4 is the first structural representation of transmission arm in this utility model, swing component and elastic component assembled scheme.
Fig. 5 is a kind of assembling structural representation of Fig. 4.
Fig. 6 is the structural representation that in Fig. 5, transmission arm and swing component coordinate.
Fig. 7 is the backsight structural representation of Fig. 6.
Fig. 8 is transmission arm in Fig. 4, swing component and elastic sphere operation principle structural representation.
Fig. 9 is the second structural representation of transmission arm in this utility model, swing component and elastic component assembled scheme.
Figure 10 is the third structural representation of transmission arm in this utility model, swing component and elastic component assembled scheme.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment 1: there is the bicycle chain puller of protection device, as shown in Figure 1, Figure 2 and Figure 3, including vehicle frame 80, arrange
Connecting hanger 83 in derailleur 81(derailleur 81 on vehicle frame 80, hanger 83 is fixed on vehicle frame 80 by lock screw 82
On), the sprocket wheel 86 coordinated with group chain sheet in described derailleur 81 and chain 84.
Described derailleur 81 includes:
The driving mechanism of transmission power, power intake thereon is connected with the outfan of derailleur electro-motor 30；
For dialling the follower of chain, it is connected to the clutch end of described driving mechanism；
Resilient protection mechanism, its two ends are connected to the clutch end of described driving mechanism and described driving mechanism
Power intake；
The forward elastic deformation of described resilient protection mechanism drives described follower to carry out dialling chain, and described follower is subject to
To reverse power, the most described resilient protection mechanism absorbs reverse power.
Play cushioning effect by arranging resilient protection mechanism, buffer and drive follower to enter forward driving force
Row dials chain, it is also possible to Absorption is in reverse resistance or the shock of unfavorable external force of dialling chain sheet 36, it is to avoid forward driving force is with anti-
Send to resistance and collide, be conducive to the element in protection power transmission path, the risk that minimizing damages, and protection device structure
Simply, bi-directional force can be absorbed again cleverly, it is to avoid intense impact occurs.
Driving mechanism includes the scroll bar 34 driven by described electro-motor 30, the worm gear 35 driven by described scroll bar 34, institute
State resilient protection mechanism and be arranged on the outfan of described worm gear 35.
In order to realize Electronic control, electro-motor 30 connects circuit control system 32 and change gear box 40, gear teeth
The scroll bar 34 that roller box 40 outfan connects, the outfan of worm gear 35 coordinates kinematic link 42, the outfan of described kinematic link 42
It is in transmission connection with power input shaft 39.
Using turbine, the type of drive of worm screw, motor drives turbine, worm screw can transmit power, when follower is subject to by forward
During to the shock of direction resistance or unfavorable external force, turbine, worm screw can not backwards rotation, be conducive to protecting motor, be also beneficial to prevent
Only chain releasing.
Described resilient protection mechanism is torsion spring 20, and it is arranged on the input of described follower, and Poewr transmission mechanism passes
Sending positive force to make torsion spring deformation, the torsion spring of deformation drives follower to dial chain；
Follower is absorbed reverse power by reverse power, described torsion spring.
Follower is quadric chain, including:
Connecting rod base 34, its power intake is connected with the outfan of described driving mechanism, and is driven by described driving mechanism
It swings；
Dialling chain sheet 36, its outfan is for dialling chain；
Upper connecting rod 35 and lower link 37, the two ends of each connecting rod are connected to connecting rod base and dial on chain sheet；
Described torsion spring 20 is arranged on the power intake of described connecting rod base 34.
The power intake of described connecting rod base 34 arranges power input shaft 39；
Described upper connecting rod 35 is connected on described power input shaft 39；
Described torsion spring 20 is nested with at power input shaft 39, and one end of described torsion spring 20 is fixed on described power input shaft 20,
The other end is fixed on described upper connecting rod 35.
In other words, one end of torsion spring 20 rotates with power input shaft, and the other end, with described upper link rotatable, will dial chain
Resistance or vibration that sheet bears transfer described torsion spring to and bear.
During use, power-driven mechanism effect is positive force with the active force of torsion spring, and torsion spring is with power input shaft just
To transmission, make to dial chain sheet correct operation.And when dialling chain sheet by reverse resistance, upper connecting rod makes torsion spring rotate backward, and turns round simultaneously
Power is rotated forward so that positive force and opposite force are offset, and opposition is released, it is to avoid to power drive on spring
Parts in mechanism cause damage.By the setting of protection device, it is possible to the counteracting interaction force worked as in time, accurately, ingeniously, for
The shutdown of electronic-controlled installation provides the operating time, it is to avoid each associated components damages.
In the present embodiment, as it is shown on figure 3, furthermore, it is understood that the upper connection end of described upper company 35 is provided with power input shaft
Grafting axis hole, is provided with described torsion spring and accommodates chamber in described axis hole, described torsion spring 20 is placed in receiving chamber, one end of described torsion spring
Being fixed on described upper connecting rod 35, described power input shaft 39 arranges flange collar 39-1, the other end of described torsion spring 20 is fixed
In described flange collar 39-1, making torsion spring 20 be built in power input shaft and upper connecting rod assembling attaching space, beneficially structure is tight
Gather, be conducive to protection torsion spring to avoid by extraneous foreign body and disturb, it is possible to twisting resistance is provided normally.
In order to make torsion spring 20 firmly, stably be arranged on power input shaft 39 and upper connecting rod 35 assembles in attaching space,
The receiving of described torsion spring arranges draw-in groove in chamber, and described torsion spring end is fixed in draw-in groove, and described flange collar is provided with fixing hole, described torsion
Spring end is inserted fixing hole and is fixed in fixing hole.
Owing to bicycle uses environment to be outdoor, it is desirable to have Lock gate, therefore the agent structure of derailleur is arranged on anti-
In water case 38,33, circuit control system is connected with cable by water joint 31.
During use, motor 30 is energized work, successively through worm screw 44, turbine 45, kinematic link 42 and power input shaft 39 shape
Become power transmission, make driving mechanism action, finally make group chain sheet 36 accurately dial chain and carry out speed governing.Wherein, torsion spring 20 is in transmission
Journey plays the effect of buffering, when dial chain sheet 36 by unfavorable external force (sprocket wheel resistance in time slowly rotating or be static or
The impulsive force that person's bicycle is fallen down, clashed into) time, torsion spring 20 is twisted, on the driving force of buffering motor 30 and group chain sheet 36 not
Profit external force, plays a protective role, it is to avoid corresponding component receives damage, and when unfavorable external force eliminates, torsion spring 20 can discharge again slow
Impulse force, makes to dial chain sheet and accurately dials chain.
Embodiment 2: as illustrated in figures 4-5, the difference with embodiment 1 is: resilient protection mechanism includes swing component 48, transmission
Arm 47 and the elastic sphere 49 being arranged between described swing component 48 and transmission arm 47, described swing component 48 is articulated in driving mechanism
Outfan (specifically, kinematic link 42 lower end is provided with bearing pin, and the upper end of swing component 48 is fixed on bearing pin), described transmission
The power intake of arm 47 and the outfan pivot joint of swing component 48, the outfan of described transmission arm 47 and described power input shaft 39
Input connects, and described elastic sphere 49 is for absorbing described group of resistance that chain sheet 36 is subject to or vibration.
Described kinematic link 42 lower end is provided with bearing pin, and the upper end of described swing component is fixed on described bearing pin.
As Figure 6-Figure 8, in order to prevent elastic sphere 49 from departing from swing component 48 and transmission arm 47, transmission arm 47 and described
Being respectively provided with the second groove 47-1 and the first groove 48-1 being oppositely arranged on swing component 48, described elastic sphere is contained in described
First groove and the second groove fasten the receiving chamber forming enclosed, the assembling groove shape on transmission arm 47 and described swing component 48
Cyclization bread closed structure, makes described elastic sphere 49 spacing between described transmission arm 47 and swing component 48.
The most specifically, transmission arm 47 is triangular in shape, and the upper end of assembling groove 47-1 thereon accommodates described swing
The connection end of part 48, described swing component 48 is waist arc, and described elastic component 49 is spherical in shape or cylindrical.The transmission arm of triangle makes
The connection end of swing component is contained in assembling groove, reduces thickness between the two, is conducive to making compact overall structure.Swing
Part is waist arc, is conducive to improving intensity, in transmission process, has preferable bend resistance ability.
During use, motor 30 is energized work, successively through worm screw 44, turbine 45, kinematic link 42, resilient protection mechanism and dynamic
Power power shaft 39 forms power transmission, makes follower action, finally makes group chain sheet accurately dial chain and carries out speed governing.When dialling chain sheet 36
During by unfavorable external force (impulsive force that sprocket wheel resistance in time slowly rotating or be static or bicycle are fallen down, clashed into),
Protection device plays the effect of buffering.Specifically, motor 30 applies driving force to swing component 48, dials on chain sheet 36 by unfavorable
External force reaches transmission arm 47, by the power contrary with motor 30 on transmission arm 47, makes the folder between swing component 48 and transmission arm 47
Angle beta diminishes, and clamps elastic ball 49, makes the power of both direction neutralize at the enterprising row buffering of elastic component 49, it is to avoid rigid shock is formed
The appearance of destructive phenomenon, be conducive to protecting the associated components of derailleur.
Embodiment 3: the difference with embodiment 2 is: described elastomer 49 is elastic link, and one end is connected to described swing
The swinging end of part 48, the other end is connected to the input of described transmission arm 47.Power is played by the elastic deformation of elastomer 49
Cushioning effect.
Embodiment 4: the difference with embodiment 2 is: described elastomer 49 is elastic linked component, including first connecting rod
49-1, being connected to the second connecting rod 49-2 and spring 49-3 of first connecting rod 49-1 outfan, described first connecting rod 49-1's is defeated
Entering end to be connected on the swinging end of described swing component 48, the outfan of described second connecting rod 49-2 is connected to described transmission arm
The input of 47, described spring 49-3 is arranged between described second connecting rod 49-2 and described transmission arm 47.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model.Above-mentioned
In embodiment, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, made
Any modification, equivalent substitution and improvement etc., within should be included in protection domain of the present utility model.
Claims (10)
1. there is the bicycle chain puller of protection device, including:
The driving mechanism of transmission power, power intake thereon is connected with the outfan of derailleur electro-motor,
For dialling the follower of chain, it is connected to the clutch end of described driving mechanism,
It is characterized in that, also include:
Resilient protection mechanism, its two ends are connected to clutch end and the power of described driving mechanism of described driving mechanism
Input,
The forward elastic deformation of described resilient protection mechanism drives described follower to carry out dialling chain, and described follower is by inverse
Xiang Li, the most described resilient protection mechanism absorbs reverse power.
The bicycle chain puller with protection device the most according to claim 1, it is characterised in that:
Described driving mechanism includes the scroll bar by described electrical motor driven, the worm gear driven by described scroll bar, described elasticity
Protection mechanism is arranged on the outfan of described worm gear.
The bicycle chain puller with protection device the most according to claim 2, it is characterised in that described resilient protection machine
Structure includes:
Swing component, its input is connected to the outfan of described driving mechanism；
Transmission arm, is connected to the outfan of described transmission arm, and the turning end of transmission arm is connected to the input of follower；
Elastomer, it is clamped between described swing component and transmission arm, dynamic to follower output by the elastic deformation of elastomer
Power.
The bicycle chain puller with protection device the most according to claim 3, it is characterised in that
Described elastomer is elastic sphere or elastic cylinder, and it is clamped between described swing component and transmission arm；
Or, described elastomer is elastic link, and one end is connected to the swinging end of described swing component, and the other end is connected to described biography
The input of swing arm；
Or, described elastomer is elastic linked component, including first connecting rod, is connected to the second of first connecting rod outfan even
Bar and spring, the input of described first connecting rod is connected on the swinging end of described swing component, described second connecting rod
Outfan is connected to the input of described transmission arm, and described spring is arranged between described second connecting rod and described transmission arm.
The bicycle chain puller with protection device the most according to claim 4, it is characterised in that
On described swing component, the first groove is set corresponding to elastomer position；
On described transmission arm, the second groove is set corresponding to elastomer position,
Described first groove and the second groove fasten, and form the receiving chamber of enclosed, and described elastic sphere is placed in receiving intracavity；
The outfan of described swing component is arranged on the second groove top.
The bicycle chain puller with protection device the most according to claim 1 and 2, it is characterised in that:
Described resilient protection mechanism is torsion spring, and it is arranged on the input of described follower, and Poewr transmission mechanism transmits forward
Power makes torsion spring deformation, and the torsion spring of deformation drives follower to dial chain；
Follower is absorbed reverse power by reverse power, described torsion spring.
The bicycle chain puller with protection device the most according to claim 6, it is characterised in that: described follower is
Quadric chain, including:
Connecting rod base, its power intake is connected with the outfan of described driving mechanism, and is driven it to swing by described driving mechanism；
Dialling chain sheet, its outfan is for dialling chain；
Upper connecting rod and lower link, the two ends of each connecting rod are connected to connecting rod base and dial on chain sheet；
Described torsion spring is arranged on the power intake of described connecting rod base.
The bicycle chain puller with protection device the most according to claim 7, it is characterised in that:
The power intake of described connecting rod base arranges power input shaft；
Described upper connecting rod is connected on described power input shaft；
Described torsion spring is nested with at power input shaft, and one end of described torsion spring is fixed on described power input shaft, and the other end is fixed on
On described upper connecting rod.
The bicycle chain puller with protection device the most according to claim 8, it is characterised in that described upper connecting rod upper
Connecting end and be provided with power input shaft grafting axis hole, be provided with described torsion spring and accommodate chamber in described axis hole, described torsion spring is placed in receiving
In chamber, one end of described torsion spring is fixed on described upper connecting rod, and described power input shaft arranges a flange collar, described torsion spring another
One end is fixed in described flange collar.
The bicycle chain puller with protection device the most according to claim 9, it is characterised in that described torsion spring accommodates chamber
In draw-in groove is set, the end of described torsion spring is fixed in draw-in groove, and described flange collar is provided with fixing hole, the other end of described torsion spring
Insert fixing hole and be fixed in fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835502.0U CN205837119U (en) | 2016-08-02 | 2016-08-02 | There is the bicycle chain puller of protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835502.0U CN205837119U (en) | 2016-08-02 | 2016-08-02 | There is the bicycle chain puller of protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205837119U true CN205837119U (en) | 2016-12-28 |
Family
ID=57617296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620835502.0U Active CN205837119U (en) | 2016-08-02 | 2016-08-02 | There is the bicycle chain puller of protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205837119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717327A (en) * | 2019-03-18 | 2020-09-29 | 佶庆电机有限公司 | Protection structure of electric chain shifter |
| TWI752306B (en) * | 2019-03-20 | 2022-01-11 | 彥豪金屬工業股份有限公司 | Bicycle derailleur |
-
2016
- 2016-08-02 CN CN201620835502.0U patent/CN205837119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717327A (en) * | 2019-03-18 | 2020-09-29 | 佶庆电机有限公司 | Protection structure of electric chain shifter |
| TWI752306B (en) * | 2019-03-20 | 2022-01-11 | 彥豪金屬工業股份有限公司 | Bicycle derailleur |
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