CN2188620Y - Three-proof lock for bicycle - Google Patents

Abstract

The utility model relates to a bicycle lock, comprising cylinder locks and having waterproof, anti-dust and anti-pulling functions. A wrapping (3) with a keyhole (2) is fixed on the upper end face of a lock core (1), a movable cover plate (4) is arranged in the wrapping, the cover plate (4) supported by a lock axle (5) and a torsional spring (6) seals the keyhole, and a double deflection type key is attached. The utility model has remarkable advantages of reliable triple protective function, beautiful appearance and convenient opening.

Description

Three-proof lock for bicycle

The utility model belongs to the garden tube to be locked, particularly a kind of bicycle lock with waterproof and dustproof and anti-group function that constitutes with garden tube lock.

Existing bicycle lock is in use endured erosion by wind and rain to the fullest extent, lock core amasss full dirt even corrodes, make lock open difficulty, lockhole exposes simultaneously, easily spies on lock core structure from lockhole, so that the lock auto theft takes place to dial, in addition, the key of existing bicycle lock is one-sided profile of tooth, opens lock and will note teeth directional, uses inconvenient in the lower environment of visibility.

The purpose of this utility model aims to provide a kind of have waterproof and dustproof and anti-bicycle lock and the two-way type key of dialling function, to remedy the deficiencies in the prior art.

The purpose of this utility model is realized by following technical scheme:

Fix a jacket (3) that keyhole (2) are arranged in the upper surface of lock core (1), its inboard is provided with cover plate (4), on the bearing pin (5) in cover plate (4) the one stomidiums cover torsion spring (6) is housed;

The lockhole position consistency of keyhole (2) and lock core (1) can be provided with the guide channel boss (8) that the guide channel (7) with key matches on it; It also can be the strip slotted hole;

Crouching and be contained in the groove of lock core (1) upper surface in the two ends of bearing pin (5), also can cover plate (4) is connected with jacket (3) hinge type by bearing pin (5);

Key (9) can be one-sided profile of tooth, also can be the profile of tooth of dual-side and forward and backward the symmetrically arranged two-way type key of guide channel (7).

Further specify the technical program with drawings and Examples below:

Present embodiment structure sectional view when Fig. 1 inserts for key;

Fig. 2 is two-way type key and keyhole shape schematic diagram.

Embodiment as shown in the figure, jacket (3) and cover plate (4) are by the stainless sheet steel punching out, jacket (3) is fixing with the outer extruding of lock core (1) upper end, wear in the borehole jack of cover plate (4) one end punching out with bearing pin (5), crouch and be contained in the groove of lock core upper surface in its two ends, one end of the torsion spring on the bearing pin (6) places on lock core (1) inwall, the other end supports and holds up cover plate (4), airtight keyhole (2), shown in Fig. 1 is the key situation that cover plate (4) is open when inserting, when key was extracted, cover plate (4) recovered the state of airtight keyhole in the effect of torsion spring (6).

Key shown in Fig. 2 is a two-way type, be that key can arbitrarily insert, and unblank and not limited by guide channel and side tooth that the billiards structure of lock core (1) is identical with existing product, still be that a side tooth works when unblanking, the slideway that the non-effect tooth of a side only is set in lock core (1) gets final product.

Remarkable advantage of the present utility model is:

1, has reliable waterproof and dustproof, the anti-function of dialling;

2, lock is aesthetic in appearance, unlatching is convenient.

Claims (4)

1, a kind of bicycle Three-protecting lock, form by garden tube lock, key (9) and other parts, it is characterized in that: fix a jacket (3) that keyhole (2) are arranged in the upper surface of lock core (1), its inboard is provided with cover plate (4), on the bearing pin (5) in the borehole jack of cover plate (4) one ends torsion spring (6) is housed.

2, a kind of bicycle Three-protecting lock as claimed in claim 1, it is characterized in that: the lockhole position consistency of keyhole (2) and lock core (1), can be provided with the guide channel boss (8) that the guide channel (7) with key matches on the keyhole (2), also can be the strip slotted hole.

3, a kind of bicycle Three-protecting lock as claimed in claim 1 is characterized in that: crouching and be contained in the groove of lock core (1) upper surface in the two ends of bearing pin (5), also can cover plate (4) is connected with jacket (3) hinge type by bearing pin (5).

4, a kind of bicycle Three-protecting lock as claimed in claim 1, it is characterized in that: key (9) can be one-sided profile of tooth, also can be the profile of tooth of dual-side and the symmetrically arranged two-way type key of the guide channel of front-back (7).

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