CN2260038Y - Front wheel fork lock for bicycle preventing it from being theft - Google Patents

Abstract

The utility model relates to an anti-theft lock for bicycle front forks, which is composed of a lock body, a roll ball, an end cover of a end cover, a holding screw and a locking block. The utility model has the advantages of simple structure, science and practicality. A plurality of parts of the utility model replace a plurality of part of the existing bicycle to make that the utility model has an original function, and simultaneously, the utility model becomes a novel lock. The outstanding characteristic of the utility model lies in that the problem that the existing bicycle lock is easy to damage by external force to cause the bicycle to be stolen.

Description

The special-purpose antitheft Front fork lock of bicycle

The utility model relates to a kind of bicycle lock.

As everyone knows, the stolen great society difficult problem that has become the numerous town dwellers that crowd around at present of bicycle, this and bicycle lock and installation thereof dangerous has direct relation.Existing bicycle lock generally is installed on the back vent of bicycle or on the vehicle frame, and lockset all is lock cycle wheels.The safety hazard of existing lockset is that lockset is installed and exposes that rigidity is relatively poor, finds out weak link easily and destruction is done the force.Bicycle is stolen all to be to adopt the outside destroy bicycle lock to cause by the robber, and the appropriate adoption key is unblanked to steal the situation of car and almost do not had.The stolen key point of bicycle that Here it is.

The purpose of the special-purpose antitheft Front fork lock of the utility model bicycle provides a kind of preventing and is caused the stolen lockset of bicycle by outside destroy.

The special-purpose antitheft Front fork lock of the utility model bicycle is made up of lock body, ball, ball end cap, holding screw, lock dog, there is a location projection lock body bottom side, its groove of aiming in the letter of bicycle front fork cover is pressed into (for this lock file one little groove on the bicycle front fork sleeve in advance is installed), so just eliminated the rotational freedom of lock body, lock body inner bottom part rectangular distribution is placed ball, and push down with the ball end cap, ball end cap and bicycle cylindrical fireworks adopt thread connection; Ball end cap top is lock dog, and lock dog is fixed in (there is a mounting hole lock body outside portion, is convenient to install holding screw) on the bicycle cylindrical fireworks by means of holding screw.Bicycle handle bar also is fixed on the bicycle cylindrical fireworks.Key inserts the lock core on the lock body, and screw key, dead bolt be Unscrew or pinning lock dog simultaneously.After lock is opened, but bicycle handle bar rotates on freedom and flexibility ground, lock the handlebar anticlockwise direction need only be rotated during car 60 ° make dead bolt over against the lock dog side and groove (recess width is approximately greater than the lock dog width), the angle of groove line of centers and holding screw line of centers is 120 °, 90 ° of key anti-clockwise rotations, make dead bolt enter lock dog groove center, behind the taking-up key, bicycle front fork just is locked to (60 °) on the certain angle.At this moment bicycle front fork and handlebar all can not rotate, and bicycle just can not be ridden certainly, also can only be to turn-take in the original place if will promote by force.

The special-purpose Front fork lock of the utility model bicycle is simple in structure, the science practicality, its part has replaced existing bicycle part, makes the original function of its existing attachments of a bicycle become a kind of novel lockset again simultaneously, and can reduce the bicycle integral vehicle cost.Its outstanding characteristics have been to solve present bicycle lock and have been subjected to outside destroy easily and cause the stolen a great problem of bicycle, and its advantage and good effect are remarkable.

Accompanying drawing 1 is the revolved sectional view of the special-purpose antitheft Front fork lock of the utility model bicycle.

Accompanying drawing 2 is birds-eye vieies of the special-purpose antitheft Front fork lock of the utility model bicycle.

1 is lock body, the 2nd among the figure, ball, the 3rd, ball end cap, the 4th, holding screw, the 5th, lock dog, the 6th, dead bolt, the 7th, lock core, the 8th, lock core lining.

Embodiment: as shown in the figure the projection of lock body 1 bottom side is aimed at the groove on the bicycle front fork sleeve, lock body 1 is pressed on the cover Tong, the ball 2 that will be wrapped with grease then evenly is placed on lock body 1 inner bottom part, ball end cap 3 is spun on the bicycle cylindrical fireworks and with ball 2 pushes down, put into lock dog 5, lock dog 5 is fixed on the cylindrical fireworks with holding screw 4.At this moment, lock and be opening.If with 60 ° of handlebar inhour rotations, with key inhour half-twist, take out key, bicycle front fork promptly is lockable.

Claims (1)

1, the special-purpose antitheft Front fork lock of a kind of bicycle, by lock body, ball, the ball end cap, holding screw, lock dog is formed, it is characterized in that: there is a mounting hole lock body outside portion, there is a projection lock body bottom side, lock body is pressed on the bicycle front fork sleeve, projection places in the groove of sleeve, lock body inner bottom part rectangular distribution is placed with ball, and push down with the ball end cap, ball end cap and bicycle cylindrical fireworks adopt thread connection, lock dog is placed on ball end cap top, lock dog is fixed on the bicycle cylindrical fireworks by means of holding screw, and there is a groove lock dog side, and the angle of groove line of centers and holding screw line of centers is 120 °, when bicycle pinned, the angle of lock body outside mounting hole line of centers and holding screw line of centers was 60 °.

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