CN2262081Y - Bicycle lock - Google Patents

Abstract

The utility model relates to a lock used for a bicycle. A lock body is arranged in the cavity of a cross-beam, one end of a lock hole of the lock body is fixedly connected with a hole wall on the cross-beam, and a lock head can be inserted into via holes of a bicycle hoop and a bicycle fork. When the bicycle runs normally, an included angle of 45 deg-90 deg is formed between the via hole on the bicycle hoop and the via hole on the bicycle fork. The utility model has the advantages of simple bicycle lock structure, easy fabrication, convenient use, firm and reliable locking, little possibility of being damaged and high safety factor.

Description

A kind of lock

The utility model relates to the lock that bicycle uses.

At present, the bicycle lock that circulates on the market is generally steel wire lock and U-shape lock, because these locks all are mounted in the outside of car body voluntarily, the car stealer destroys lock with regard to available little hacksaw, sieve silk cutter as long as sell a little power of little expense, and car stolen, and do not damage the other parts of car thereby the poor stability of this lock.

The utility model purpose will provide a kind of lock car solid and reliable exactly, the lock that is difficult to destroy.

In order to achieve the above object, feature of the present utility model is, lock body (4) is set in the inner chamber of crossbeam (6), be provided with through hole with the corresponding position of lockhole (5-1) on the crossbeam, this hole wall forms fastening the connection with an end of lock body (4), the corresponding position of car hoop and tapered end (3) is provided with through hole (1-1), and car fork (2) is provided with through hole (2-1).

When car fork plane, place and plane, crossbeam place were vertical mutually, angle was 45 °～90 ° between the through hole (2-1) on through hole (1-1) on the car hoop (1) and the car fork (2).

This Vehicle lock structure is simple, and is easy to manufacture, and cost is low, easy to use, because lock body is installed in the car body inner chamber, thereby the lock car is solid and reliable, is difficult to destroy high safety.

Below in conjunction with accompanying drawing the utility model is described further:

Description of drawings: Fig. 1 is a main pseudosection of the present utility model

Fig. 2 is the A-A cutaway view Amplified image of Fig. 1

By Fig. 1,2 as can be known, on near the crossbeam crossbeam (6) and car hoop (1) junction, be provided with through hole, lock body (4) is installed in the inner chamber of crossbeam by this hole, one end of lock body forms fastening the connection with this hole wall, with the corresponding car hoop of tapered end (3) (1) on be provided with through hole (1-1), also be provided with through hole (2-1) on the car fork (2), when car fork plane, place and plane, crossbeam place were vertical mutually, angle was 45 °～90 ° between the through hole on through hole that car is stuck and the car hoop.

Lock body comprises housing, tapered end (3), lock core (5), and housing is provided with centre bore and the vertical side opening that communicates with centre bore, and lock core is housed in the centre bore, inserts tapered end in the side opening, and the lock core lower end is a gear, and is meshed with the tooth bar of tapered end one end.

When the lock car, earlier key is inserted in the lockhole (5-1), key can drive tapered end (3) by lock core (5) and move, make the through hole (1-1) that stretches on the outer tapered end insertion car hoop (1) of lock body (4) rotate 45 °～90 ° of car forks simultaneously, through hole (2-1) on the car fork (2) is communicated with through hole (1-1) on the car hoop (1), and tapered end (3) is stretched in the through hole that car sticks, handlebar can not rotate again like this, bicycle also just can't cruising, promptly finishes the action of lock car; When unblanking, earlier key is inserted lockhole (5-1) and rotates round about, by lock core (5) drive that tapered end (3) moves and through hole (2-1) on car fork (2), the car hoop (1), (1-1) in withdraw from, promptly finish unlocking action.

Because lock body is mounted in the inner chamber of bicycle crossbeam, when the lock car, tapered end inserts in car hoop, the car entry, and crossbeam and car hoop be one, is all made by steel pipe, thereby it is very difficult if want to destroy lock, unless crossbeam, car hoop are damaged, car has just lost meaning if do steathily like this, therefore, it is solid and reliable that this lock can make bicycle accomplish to lock car, the safety factor height.

Claims (2)

1, a kind of lock, it is characterized in that in the inner chamber of crossbeam (6), being provided with lock body (4), crossbeam is provided with and the corresponding through hole of lockhole (5-1), this hole wall forms fastening the connection with an end of lock body, car hoop (1) is gone up and the corresponding position of tapered end (3) is provided with through hole (1-1), and car fork (2) is provided with through hole (2-1).

2, lock according to claim 1, when it is characterized in that the plane at described car fork (2) place is mutual vertical with the plane at crossbeam (6) place, the angle between the through hole (1-1) on through hole that car is stuck (2-1) and the car hoop (1) is 45 °～90 °.

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