CN205524608U

CN205524608U - Area lock bicycle speed changer

Info

Publication number: CN205524608U
Application number: CN201620255971.5U
Authority: CN
Inventors: 王乾根
Original assignee: Ningbo Qilong Bicycle Industry Co Ltd
Current assignee: Ningbo Qilong Bicycle Industry Co Ltd
Priority date: 2016-03-25
Filing date: 2016-03-25
Publication date: 2016-08-31
Anticipated expiration: 2026-03-25

Abstract

The utility model provides an area lock bicycle speed changer, including the steel cable for the flexible control unit of steel cable is controlled in the storage, the rigid coupling in last planking and the inner panel of control unit, and set up the planking with last gear and lower gear between the inner panel, go up the gear with the gear cooperates and is used for passing chain, its characterized in that down: down the gear with it is provided with the pickproof lock to go up between the gear, the pickproof lock passes respectively the planking can be right in step down the gear with it locks to go up the gear to restrict its rotation. The bicycle speed changer of this structure guarantees that the position of its pickproof lock conceals, is difficult for the discovery by the thief, has improved its factor of safety, in addition, lock gear and last gear down simultaneously, difficult quilt is pried open, has improved its reliability, whole pickproof lock small in size in addition, simple to operate.

Description

A kind of locking bicycle speed-varying unit

Technical field

This utility model relates to bicycle accessories field, is specifically related to bicycle speed-varying unit, particularly relates to one locking certainly Driving variator.

Background technology

The most a lot of bicycles are equipped with speed change system.The effect of bicycle shift system is through changing chain Cooperation with the toothed disc of different forward and backward sizes changes speed speed.The size of front fluted disc and the size of rear tooth disk determine Dynamics during bicycle turn pedal.Front fluted disc is the biggest, and rear tooth disk more hour, is more felt laborious during pedal.Front fluted disc is more Little, when rear tooth disk is the biggest, more feel relief during pedal.According to the ability of different drivers, can be by adjusting forward and backward fluted disc Size adjust the speed of bicycle, or tackle different section, road conditions.

In order to bicycle prevents stolen, have a lot of bicycle equipped with theftproof lock, also have bicycle to use and additionally buy Theftproof lock carries out antitheft.General anti-theft device is all through bicycle wheel, prevents limiting the rotation of bicycle wheel Steal.Above-mentioned anti-theft device is primarily present following defect: 1, volume is relatively big, installs or carries inconvenience；2, position is obvious, Easily found by thief；3, unreasonable structure, it is easy to pried open.

Utility model content

Main purpose of the present utility model is to provide a kind of with theftproof lock, and this theftproof lock volume is little, installation side Just, position is hidden, well-set locking bicycle speed-varying unit.

For reaching object above, the technical solution adopted in the utility model is: a kind of locking bicycle speed-varying unit, including Steel cable, for storing and controlling the control parts that described steel cable is flexible, is fixed in the outside plate on described control parts and inner panel, And it is arranged on the gear between described outside plate and described inner panel and lower gear, described gear and described lower gear cooperation use In through chain, it is characterised in that: being provided with theftproof lock between described lower gear and described gear, described theftproof lock is respectively Through described outside plate and inner panel, can synchronize described lower gear and described gear are locked, to limit its rotation.Should The position of its theftproof lock of bicycle speed-varying unit of structure is hidden, is difficult to be found by thief, improves its safety coefficient；It addition, Lower gear and gear are locked simultaneously, be difficult to be pried open, improve its reliability.

As preferably, described theftproof lock includes lock tube, lock core, synchromesh gear, upper bolt and lower bolt；Described lock tube Being fixed on described outside plate, described lock core is through described lock tube and matches, and described synchromesh gear is fixed in described lock core one end, Described upper bolt and described lower bolt engage with described synchromesh gear respectively, described synchromesh gear rotate time, described upper bolt and Described gear and described lower gear are locked by described lower bolt respectively.The locking of the theftproof lock of this structure can a step be arrived Position, and simple and reliable for structure.

Further, described upper bolt and described lower bolt are oppositely arranged on described synchromesh gear both sides, on described upper bolt It is provided with the bar shaped locking bar that can be inserted into described gear, described lower bolt is provided with the U-shaped lock that can be inserted into described lower gear Bar, corresponding described outside plate is provided with the accessibke porosity passed for described bar shaped locking bar and described U-shape sword iron, described inner panel On be provided with the inner via hole passed for described U-shape sword iron, described gear is provided with for described bar shaped locking bar enter upper Locked groove, described lower gear is provided with the lower locked groove entered for described U-shape sword iron.Synchromesh gear rotates in one direction Time, upper bolt and lower bolt move toward one another, simultaneously bar shaped locking bar and U-shape sword iron move toward one another, Bar lock masthead end is worn Crossing the upper locked groove of outside plate entrance to lock, under U-shape sword iron top enters through inner panel simultaneously, locked groove locks.

As improvement, described theftproof lock also includes that shell body, described shell body are fixed on described outside plate, described synchronization Gear, described upper bolt and described lower bolt are arranged in described shell body, and described shell body offers for described lock core The lock core hole entered.It is relatively reliable that housing is used for protecting synchromesh gear, upper bolt and lower bolt to connect, and ensure its be difficult to by Sled.

As improvement, described outside plate is further opened with avoid described synchromesh gear, described upper bolt and described lower bolt fortune The movement slots interfered time dynamic.Make speed changer structure more reasonable.

Compared with prior art, the utility model has the advantage of: the bicycle speed-varying unit of this structure ensures its theftproof lock Position hidden, be difficult to be found by thief, improve its safety coefficient；It addition, lower gear and gear are locked simultaneously Fixed, it is difficult to be pried open, improves its reliability, the most whole theftproof lock compact, easy for installation.

Accompanying drawing explanation

Fig. 1 is the perspective view according to a preferred embodiment of the present utility model；

Fig. 2 is the decomposing state perspective view according to a preferred embodiment of the present utility model；

Fig. 3 is the plan view according to a preferred embodiment of the present utility model；

Fig. 4 is according to the perspective view of theftproof lock in a preferred embodiment of the present utility model；

Fig. 5 is according to the decomposing state perspective view of theftproof lock in a preferred embodiment of the present utility model；

Fig. 6 is according to theftproof lock unlocked state schematic diagram in a preferred embodiment of the present utility model；

Fig. 7 is according to theftproof lock lock-out state schematic diagram in a preferred embodiment of the present utility model.

Detailed description of the invention

Hereinafter describe and be used for disclosing this utility model so that those skilled in the art are capable of this utility model.Hereinafter retouch Preferred embodiment in stating is only used as citing, it may occur to persons skilled in the art that other obvious modification.

As shown in Fig. 1～7, an embodiment of the present utility model includes steel cable 2, is used for storing and control steel cable 2 and stretches The control parts 1 of contracting, are fixed in the outside plate 3 and inner panel 4 controlled on parts 1, and be arranged on outside plate 3 and inner panel 4 it Between gear 5 and lower gear 6, gear 5 and lower gear 6 coordinate for through chain, lower gear 6 and gear 5 Between be provided with theftproof lock 7, theftproof lock 7 is each passed through outside plate 3 and inner panel 4, can synchronize lower gear 6 and gear 5 lock, to limit its rotation.

Concrete, theftproof lock 7 includes lock tube 71, lock core 72, synchromesh gear 73, upper bolt 74, lower bolt 75 With shell body 76；Lock tube 71 is fixed on outside plate 3, and lock core 72 is through lock tube 71 and matches, and synchromesh gear 73 is solid It is connected to lock core 73 one end, upper bolt 74 and lower bolt 75 engage with synchromesh gear 73 respectively, when synchromesh gear 73 rotates, Gear 5 and lower gear 6 are locked by upper bolt 74 and lower bolt 75 respectively；Shell body 76 is fixed on outside plate 3, Synchromesh gear 73, upper bolt 74 and lower bolt 75 are arranged in shell body 76, and shell body 76 offers for lock core 72 lock core holes 761 entered.

It is critical that, upper bolt 74 and lower bolt 75 are oppositely arranged on synchromesh gear 73 both sides, upper bolt 74 On be provided with the bar shaped locking bar 741 that can be inserted into gear 5, lower bolt 75 is provided with can be inserted into lower gear 6 U-shaped lock Bar 751, corresponding outside plate 3 is provided with the accessibke porosity 31 passed for bar shaped locking bar 741 and U-shape sword iron 751, inner panel 4 On be provided with the inner via hole 41 passed for U-shape sword iron 751, gear 5 is provided with for bar shaped locking bar 741 enter upper Locked groove 51, lower gear 6 is provided with the lower locked groove 61 entered for U-shape sword iron 751.

It addition, occur dry when being further opened with avoiding synchromesh gear 73, upper bolt 74 and lower bolt 75 to move on outside plate 3 The movement slots 32 related to.

Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description Simply principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model also has respectively Planting changes and improvements, these changes and improvements both fall within the range of claimed this utility model.This utility model requirement Protection domain defined by appending claims and equivalent thereof.

Claims

1. a locking bicycle speed-varying unit, including steel cable, for storing and controlling the control parts that described steel cable is flexible, Be fixed in the outside plate on described control parts and inner panel, and the gear being arranged between described outside plate and described inner panel and under Gear, described gear and described lower gear coordinate for through chain, it is characterised in that: described lower gear and described upper tooth Being provided with theftproof lock between wheel, described theftproof lock is each passed through described outside plate and inner panel, can synchronize described lower gear and institute State gear to lock, to limit its rotation.

Locking bicycle speed-varying unit the most according to claim 1, it is characterised in that: described theftproof lock include lock tube, Lock core, synchromesh gear, upper bolt and lower bolt；Described lock tube is fixed on described outside plate, and described lock core passes described lock tube And match, it is synchronization with described respectively that described synchromesh gear is fixed in described lock core one end, described upper bolt and described lower bolt Gear engages, and when described synchromesh gear rotates, described upper bolt and described lower bolt are respectively to described gear and described lower tooth Wheel locks.

Locking bicycle speed-varying unit the most according to claim 2, it is characterised in that: described upper bolt and described lower lock Bar is oppositely arranged on described synchromesh gear both sides, and described upper bolt is provided with the bar shaped locking bar that can be inserted into described gear, institute State and on lower bolt, be provided with the U-shape sword iron that can be inserted into described lower gear, corresponding described outside plate is provided with for described Bar lock The accessibke porosity that bar and described U-shape sword iron pass, described inner panel is provided with the inner via hole passed for described U-shape sword iron, described It is provided with the upper locked groove entered for described bar shaped locking bar on gear, described lower gear is provided with and enters for described U-shape sword iron Lower locked groove.

Locking bicycle speed-varying unit the most according to claim 2, it is characterised in that: described theftproof lock also includes shell Body, described shell body is fixed on described outside plate, and described synchromesh gear, described upper bolt and described lower bolt are arranged at institute State in shell body, and described shell body offers the lock core hole entered for described lock core.

Locking bicycle speed-varying unit the most according to claim 3, it is characterised in that: it is further opened with keeping away on described outside plate Exempt from the movement slots interfered when described synchromesh gear, described upper bolt and the motion of described lower bolt.