CN203654900U

CN203654900U - Bicycle hub lock

Info

Publication number: CN203654900U
Application number: CN201320885158.2U
Authority: CN
Inventors: 史延枫; 罗健; 廖武强; 樊睿; 刘剑; 李春燕; 李闯; 冯真; 庞昆权; 刘育平; 任星翰; 吴磊; 车健; 朱林; 王开武; 熊美林; 高强; 邓丽娟; 杨瑶; 罗华强
Original assignee: Chengdu University
Current assignee: Chengdu University
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2014-06-18
Anticipated expiration: 2023-12-30

Abstract

The utility model discloses a bicycle hub lock which restricts the relative movement of a hub and a rear shaft to achieve the purpose of locking and unlocking. The bicycle hub lock comprises a hub housing, a dead bolt body, a lock pin, a lock casing, a return spring, a spring catch, a cam and a cam catch, wherein the dead bolt body comprises a dead bolt, a guide rod, the cam catch and a spring, the lock pin comprises an outer lock pin and an inner lock pin, and the cam engages with the cam catch. Spring channel holes with a spring and marbles are arranged in the outer lock pin and the inner lock pin. When the bicycle hub lock is in use, a key drives the inner lock pin to rotate so as to push the dead bolt body to move towards the outer side of the hub locking casing, and the dead bolt and a spline slot in the hub housing is separated from or engage with each other to realize unlocking and locking purposes. The bicycle hub lock is integrated with a hub and is installed on the rear axle of a bicycle. The bicycle hub lock does not have to be carried independently, and is small in structure. The bicycle hub lock provides bicycle hub locking function without affecting the normal use of a bicycle hub.

Description

A kind of bicycle drive shaft lock

Technical field

The utility model relates to a kind of bicycle drive shaft lock, belongs to bicycle lock field.

Background technology:

Current known bicycle lock is mainly by locking body, core, spring, pellet, lock, tension spring, bayonet lock sheet and forming by parts such as bolts.This class bicycle lock exists following not enough: (1) user needs to buy separately bicycle lock, and the volume of lock is larger, carries in the process of moving inconvenience; (2) can not pick-proof, turn round, pound and break chain, can not prevent cutting, anti-theft capability is poor.

Summary of the invention

The bicycle drive shaft lock that provides a kind of structure small and exquisite is provided the purpose of this utility model, this lock and flower-drum are assembled into an integral installation on bicycle rear axle, do not need to carry separately, can, in the situation that not affecting the normal use of bicycle drive shaft, increase the locking function of bicycle drive shaft.

For achieving the above object, the solution that the utility model adopts is: a kind of bicycle drive shaft lock, comprise lock housing, lock tongue body and lock core, lock tongue body and lock core are located in lock housing, described lock core is made up of outer lock core and internal cylinder, in the rotating through hole that is arranged on outer lock core of internal cylinder, outer lock core is provided with two row trajectory holes, between two row trajectory holes, there is the anglec of rotation, in every row trajectory hole, be equipped with a spring and a pellet, in internal cylinder, be also provided with a row trajectory hole, the lower end in this trajectory hole is connected with keyhole, upper end is corresponding with the row trajectory hole on outer lock core, in the trajectory hole of internal cylinder, be provided with a pellet, the upper end of the pellet in described outer lock core trajectory hole is connected with spring, the other end contacts with the pellet in trajectory hole in internal cylinder, and some is inserted into the lower end of the pellet in outer lock core trajectory hole in the trajectory hole of internal cylinder, one end of described internal cylinder is provided with cam, other end is provided with keyhole, described lock tongue body comprises dead bolt, guide rod, cam catch, spring stop piece and back-moving spring, it is circular that dead bolt is, on its inside and outside surface, be processed with spline, dead bolt is fixedly connected with guide rod near a side of internal cylinder, on guide rod, cover has back-moving spring, and guide rod is connected with cam catch by snap ring away from one end of dead bolt, and the cam meshing in described cam catch and internal cylinder closes, one end at back-moving spring is also provided with spring stop piece, and spring stop piece is located by catch locator card, described lock housing is arranged on outside the flower drum shell of bicycle, is provided with chute in lock housing, and lock tongue body is slidably arranged in lock housing, and can engage with the spline on flower drum shell.

The upper end diameter in the trajectory hole in above-mentioned internal cylinder is greater than lower end diameter, and the pellet in trajectory hole is also that upper end diameter is greater than lower end diameter.

The utility model and flower-drum are assembled into an entirety, and are arranged on bicycle rear axle, do not need to carry separately, and structure is small and exquisite, and volume is little, can, in the situation that not affecting the normal use of bicycle drive shaft, increase the locking function of bicycle drive shaft.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model.

Fig. 2 is top view of the present utility model.

Fig. 3 is the front view of lock core in the utility model.

Fig. 4 is the longitudinal section of lock core in the utility model.

Fig. 5 is the front view of lock tongue body in the utility model.

Fig. 6 is the left view of the utility model lock tongue body.

In figure: 7-spring, 8-pellet, 9-cam, 10-dead bolt, 11-guide rod, 12-cam catch, 13-spring stop piece, 14-back-moving spring, the 15-rear axle of 6-trajectory hole, 1-flower drum shell, 2-outer lock core, 3-internal cylinder, 4-lock housing, 5-trajectory hole

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6, the utility model comprises flower drum shell 1, lock housing 4, lock core and lock tongue body, lock tongue body and lock core are located in lock housing 4, lock core is made up of outer lock core 2 and internal cylinder 3, in the rotating through hole that is arranged on outer lock core 2 of internal cylinder 3, outer lock core 2 is provided with two row trajectory holes 5, between two row trajectory holes 5, there is the anglec of rotation, in every row trajectory hole 5, be equipped with a spring 7 and a pellet 8, in internal cylinder 3, be also provided with a row trajectory hole 6, the lower end in this trajectory hole 6 is connected with keyhole, upper end is corresponding with the row trajectory hole 5 on outer lock core 2, in the trajectory hole 6 of internal cylinder 3, be provided with a pellet, trajectory hole 6 small top and big bottom, pellet in it is also small top and big bottom.The upper end of the pellet 8 in the trajectory hole 5 of described outer lock core 2 is connected with spring 7, the other end contacts with the pellet in trajectory hole 6 in internal cylinder 3, and some is inserted into the lower end of the pellet 8 in the trajectory hole 5 of outer lock core 2 in the trajectory hole 6 of internal cylinder 3, one end of described internal cylinder 3 is provided with cam 9, and other end is provided with keyhole.

Lock tongue body comprises dead bolt 10, guide rod 11, cam catch 12, spring stop piece 13 and back-moving spring 14, dead bolt 10 is circular, its external surface is processed with the spline being meshed with the spline on flower drum shell 1, inner surface is processed with the spline being meshed with the spline on rear axle 15, dead bolt 10 is enclosed within on rear axle 15, can on hind axle 15, slide.Dead bolt 10 is fixedly connected with guide rod 11 near a side of internal cylinder 3, on guide rod 11, cover has back-moving spring 14, one end of guide rod 11 is connected with cam catch 12 by snap ring, described cam catch 12 is meshed with the cam 9 in internal cylinder 3, one end at back-moving spring 14 is also provided with spring stop piece 13, and spring stop piece 13 is located by catch locator card.

Lock housing 4 is arranged on outside the flower drum shell 1 of bicycle, in lock housing 4, is provided with chute, and lock tongue body can slide in the chute of lock housing 1, and can engage with the spline on flower drum shell 1.

While unblanking, each pellet in internal cylinder 3 is aimed at each tooth peak on the key, keyhole upper end communicates with the trajectory hole 6 of internal cylinder 3, in key inserts key lockhole, the tooth peak of key upwards pushes away the pellet in internal cylinder 3 and outer lock core 2, spring 7 is compressed, when key all inserts after

lockhole

6, 6 mouthfuls, the upper end of internal cylinder 3 interior all pellets and trajectory hole are in same level, pellet 8 in outer lock core 2 inserts part in internal cylinder 3 trajectory holes 5 and also can be pushed out the trajectory hole 6 of internal cylinder 3, spring 7 in outer lock core 2 is compressed, 3 of internal cylinder can be along with key rotates, the cam 9 rotarily driving in internal cylinder 3 of internal cylinder 3 rotates, and because cam 9 engages with the cam catch 12 on dead bolt 10, thereby promotes lock tongue body to the direction motion away from flower drum shell 1.In the time that the angle between angle and 2 liang of row trajectory holes 7 of outer lock core of key rotation is identical, another row trajectory hole 5 on outer lock core 2 is just relative with 6 mouthfuls, trajectory hole in internal cylinder 3, and at this moment the spline of dead bolt 10 completely and in lock housing 4 departs from.Extract key, the pellet that the spring 7 of compression promotes in outer lock core 2 and internal cylinder 3 moves downward, make in the trajectory hole 6 of partial insertion internal cylinder 3 of the interior pellet 8 of outer lock core 3, block internal cylinder 3, it can not be rotated, can not rotate because internal cylinder 3 is stuck, dead bolt 10 can not move, thereby realizes release.

When locking, insert key, under the effect at key bit peak, interior outer lock core 2 pellet 8 is inserted to the trajectory hole 6 of the part release internal cylinder 3 in internal cylinder 3 trajectory holes 6, reversion internal cylinder 3, the proximal end to heart of cam 9 engages with cam catch 12, under the elastic force effect of back-moving spring 14, lock tongue body is pushed in the spline of flower drum shell 1, reaches the object of locking.Extract key, the pellet 8 in outer lock core 2 blocks internal cylinder 3 again, and it can not be rotated.There is guard shield in the left side of lock housing 4, can cover keyhole, and anti-dust processed, earth etc. enter keyhole.

Claims

1. a bicycle drive shaft lock, comprises lock housing (1), lock tongue body and lock core, and lock tongue body and lock core are located in lock housing (1), it is characterized in that:

A. lock core is made up of outer lock core (2) and internal cylinder (3), in the rotating through hole that is arranged on outer lock core (2) of internal cylinder (3), outer lock core (2) is provided with two row trajectory holes (7), between two row trajectory holes (7), there is the anglec of rotation, in every row trajectory hole (7), be equipped with a spring (8) and a pellet (9), in internal cylinder (3), be also provided with a row trajectory hole (6), the lower end in this trajectory hole (6) is connected with keyhole, upper end is corresponding with the row trajectory hole (7) on outer lock core (2), in the trajectory hole (6) of internal cylinder (3), be provided with a pellet (10), the upper end of the pellet (9) in described outer lock core (2) trajectory hole (7) is connected with spring (8), the other end contacts with the pellet (10) in the upper trajectory hole (6) of internal cylinder (3), and some is inserted into the lower end of the pellet (9) in outer lock core (2) trajectory hole (7) in the trajectory hole (6) of internal cylinder (3), one end of described internal cylinder (3) is provided with cam (11), other end is provided with keyhole,

B. lock tongue body comprises dead bolt (12), guide rod (13), cam catch (14), spring stop piece (15) and back-moving spring (16), dead bolt (12) is circular, in it, on external surface, be processed with spline (5), dead bolt (12) is fixedly connected with guide rod (13) near a side of internal cylinder (3), the upper cover of guide rod (13) has back-moving spring (16), guide rod (13) is connected with cam catch (14) by snap ring away from one end of dead bolt (12), described cam catch (14) is meshed with the cam (11) in internal cylinder (3), also be provided with spring stop piece (15) in one end of back-moving spring (16), spring stop piece (15) is located by catch locator card,

C. lock housing (1) is arranged on outside the flower drum shell of bicycle, and lock housing is provided with chute in (1), and lock tongue body is slidably arranged in lock housing (1), and can engage with the spline on flower drum shell.

2. bicycle drive shaft lock according to claim 1, is characterized in that: the upper end diameter in the trajectory hole (6) in internal cylinder (3) is greater than lower end diameter, and the pellet in trajectory hole (6) is also that upper end diameter is greater than lower end diameter.