CN2444035Y - Anti-theft lock for bicycle - Google Patents

Abstract

The utility model relates to a theft-proof lock for a bicycle, which comprises a lock pipe, a lock column, a lock body sleeve, a lock bolt and a spring. The lock column is provided with a clamping groove which is matched with the lock bolt to realize locking and is arranged in the lock pipe; the spring is arranged on the lock column, one end of the spring is clamped on a positioning flange arranged on the lock column, and the other end is clamped on the lock pipe. The utility model is characterized in that a plurality of hollow lock column sleeves are arranged between the lock pipe and the lock column; the lock column is threaded on the lock column sleeves. As adopting the structure provided with the lock column sleeves, the utility model can avoid the situation that the lock column freely swings in the lock pipe; consequently, the lock column can be ensured to stably slide in the lock pipe, and the good theft-proof performance can be effectively ensured. The utility model has the advantage of reasonable structure, artful design, convenience and practicability.

Description

A kind of anti-theft bicycle lock

The utility model is a kind of bicycle lock, belongs to the renovation technique of bicycle lock.

Existing bicycle lock, in order to realize the locking of locking bolt and lock, it is exactly to have to leave certain spacing between lock and the lock pipe that there is a common problem in its structure, so that but the situation of lock Free Slosh in the lock pipe occurs, this not only can not guarantee the smooth sliding of lock in the lock pipe, and is difficult to guarantee effectively the theftproof performance of lockset.

The purpose of this utility model is to overcome above-mentioned shortcoming and provides a kind of lock that both guaranteed also can guarantee the anti-theft bicycle lock that its theftproof performance is good effectively in smooth sliding in the lock pipe.

Structural representation of the present utility model as shown in Figure 1, include lock pipe (1), lock (2), lock body sheath (3), locking bolt (4), spring (6), wherein lock (2) is provided with locking bolt (4) and matches to realize the draw-in groove (21) of locking, it places in the lock pipe (1), spring (6) is nested with on lock (2), and an end A of spring (6) is installed on the locating flange (22) that is arranged at lock (2), other end B fastening is on lock pipe (1), and also be provided with the lock cover (5) of several hollows between lock pipe (1) and the lock (2), lock (2) is located on the lock cover (5).

Describe concrete structure of the present utility model in detail below in conjunction with embodiment:

Embodiment 1:

Structural representation of the present utility model as shown in Figure 1, include lock pipe (1), lock (2), lock body sheath (3), locking bolt (4), spring (6), wherein lock (2) is provided with locking bolt (4) and matches to realize the draw-in groove (21) of locking, it places in the lock pipe (1), spring (6) is nested with on lock (2), and an end A of spring (6) is installed on the locating flange (22) that is arranged at lock (2), other end B fastening is on lock pipe (1), and also be provided with the lock cover (5) of several hollows between lock pipe (1) and the lock (2), lock (2) is located on the lock cover (5).For making structure of the present utility model simple as far as possible, can guarantee its functional performance again, be provided with a lock cover (5) in the present embodiment.In addition, above-mentioned lock cover (5) can be packed in lock pipe (1), and the B end fastening of spring (6) is on lock cover (5).In addition, lock car for the convenience of the user, also be connected with handle (7) on the above-mentioned lock (2).

When the utility model uses, it is installed on the bicycle, the user spurs handle (7) makes lock (2) toward counterclockwise sliding (as shown in Figure 1), the C end of lock (2) is inserted in the D end of lock pipe (1), when the draw-in groove (21) on the lock (2) is corresponding with the position of locking bolt (4), then realize the locking of locking bolt and lock, compress spring (6) simultaneously.When need are unblanked, then turn key, make locking bolt (4) leave draw-in groove (21), at this moment lock (2) resets under the effect of spring (6).

The utility model is owing to adopt the structure that is provided with the lock cover, therefore, it can avoid occurring the situation of lock Free Slosh in the lock pipe, thereby not only can guarantee lock smooth sliding in the lock pipe, and can guarantee effectively that its theftproof performance is good, the utility model is a kind of rational in infrastructure, designs ingenious, function admirable, convenient and practical novel anti-theft bicycle lock.

Claims (4)

1, a kind of anti-theft bicycle lock, include lock pipe (1), lock (2), lock body sheath (3), locking bolt (4), spring (6), wherein lock (2) is provided with locking bolt (4) and matches to realize the draw-in groove (21) of locking, it places in the lock pipe (1), spring (6) is nested with on lock (2), and an end A of spring (6) is installed on the locating flange (22) that is arranged at lock (2), other end B fastening is on lock pipe (1), it is characterized in that also being provided with between lock pipe (1) and the lock (2) the lock cover (5) of several hollows, lock (2) is located on the lock cover (5).

2, anti-theft bicycle lock according to claim 1 is characterized in that above-mentioned lock cover (5) is provided with one at least.

3, anti-theft bicycle lock according to claim 1 and 2 is characterized in that above-mentioned lock cover (5) is packed in lock pipe (1), and the B end fastening of spring (6) is on lock cover (5).

4, anti-theft bicycle lock according to claim 3 is characterized in that also being connected with on the above-mentioned lock (2) handle (7).

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