CN2097255U - Double-safety anti-theft lock for bicycle - Google Patents

Abstract

The utility model discloses a double-safety anti-theft lock for a bicycle, which has an anti-prizing and an anti-moving functions and comprises a lock body cast by metal, a separated U-shaped lock ring, and a chain or a wire rope. One end of the chain or the wire rope is fixed on the lock body, and the other end is provided with a sleeve plate which is closed on the lock body through the U-shaped lock ring. When the utility model is used, the lock body is fixed on one back folk of the bicycle, and the U-shaped lock ring clamps the other back folk and passes through a bicycle wheel to be locked with the lock body. If necessary, the chain or the wire rope can be fastened with a fixture. The utility model has the advantage of firm lock body, the utility model is not easy to prize, and can prevent the bicycle from being moved.

Description

Double-safety anti-theft lock for bicycle

The present invention relates to a kind of lock, especially a kind of lock that is applicable to bicycle.

Commercially available bicycle lock can be divided into crab shape lock and chain (steel wire) lock substantially at present.The former passes wheel and finishes locking work by being configured in arc lock ring in the lock body, and the latter passes wheel by lock body that is separately fixed at chain (steel wire) two ends and snap close and finishes locking work.Crab shape lock is easily pried open because all be to adopt iron sheet as lock body, and safety performance is poor, and can not prevent that the burglar from moving bicycle; Chain (steel wire) is though lock can be fastened bicycle and prevented to move on fixture, because easily cut off, safety performance is not high yet.

The big electrical apparatus factory of Guangzhou China has produced a kind of anti-theft lock for motorcycle, and this lock also is applicable to bicycle, and it comprises the cast iron lock body, and the U-shaped lock ring of separation is fixed on the key of the anchorage clip that car sticks and the usefulness of unblanking with lock body and inserts ball lock head in the lock body.The lock body side of this lock has a pair of lock ring hole that matches with the U-shaped lock ring, the inside is equipped with the door bolt utmost point by key control respectively, have a locked groove that matches with this door bolt utmost point at two of U-shaped lock ring, the door bolt utmost point is stuck in the locked groove and the U-shaped lock ring can be locked on the lock body, and this is used for the locking bicycle to lock ring hole; Put annular distance to what match the vertical one side of lock ring hole being had another with the U-shaped lock ring with this, open above a door bolt utmost point in one of them hole, stagger in another hole and another door bolt utmost point position, this is used for unlatching lock back to the hole and places the U-shaped lock ring, wherein fastens the locked groove of a U-shaped lock ring of hole energy locking of utmost point top with a bolt or latch.Though this lock can prevent to be pried open, but still can not prevent to move bicycle.

Purpose of the present invention just provides a kind of can preventing and itself from being pried open, and can prevent the allochthonous double-safety bicycle theftproof lock of bicycle again.

For achieving the above object, the present invention increases on the basis of above-mentioned motorcycle (bicycle) theftproof lock again and adorns a ropy that has locking device with good strength and winding degree, and this ropy and a fixture bolt just can be prevented that together bicycle from being moved.

Above-mentioned ropy is better with chain or wire rope to adopt, because these two kinds of objects all can meet the demands, promptly all have good intensity and winding degree, and the life-span is long, and cost is lower.

Ropy can all be fixed on the lock body at two ends, and is middle with a lock that can separate locking in addition; Also can be fixed on the lock body by an end, the other end is adorned a cage plate, open a hole of just in time entangling the U-shaped lock ring on the cage plate, laterally vertically open a groove that matches with this cage plate at the lock body lock ring hole, this groove communicates with lock ring hole, cage plate is inserted in this groove, pass this cage plate when utilizing the U-shaped lock ring to insert lock ring hole, reach locking U-shaped lock ring and ropy simultaneously.

The advantage of double-safety bicycle theftproof lock of the present invention is: (1) has adopted metal casting as lock body, and is very firm, is difficult for being pried open; (2) ropy that increases dress can tack fixture, prevents to move bicycle, has further improved the safety performance of lock; (3) this ropy can prevent that also the own parts of bicycle (as the seat stool) are stolen.

Embodiment to double-safety bicycle theftproof lock of the present invention is described in further detail below in conjunction with accompanying drawing.

This accompanying drawing is the elevation cross-sectional view of double-safety bicycle theftproof lock of the present invention.

As seen from the figure, the lock body of double-safety bicycle theftproof lock of the present invention ［ 1 ］ is made by cast iron, right flank at this lock body has two lock ring holes ［ 2 ］ ［ 3 ］, the inside is equipped with the door bolt utmost point ［ 6 ］ ［ 7 ］ by key ［ 4 ］, ball lock head ［ 5 ］ control respectively, and this can distinguish two locked grooves ［ 9 ］ ［ 10 ］ of locking U-shaped lock ring ［ 8 ］ to the door bolt utmost point; One end of chain ［ 11 ］ is fixed on the lock body, the other end is equipped with a cage plate ［ 12 ］, cover board slot ［ 13 ］ is opened the downside rear portion at lock body lock ring hole ［ 3 ］, groove is vertical with the hole and communicate, in the cage plate insertion groove, the U-shaped lock ring passes cage plate when inserting lock ring hole, so just utilize the U-shaped lock ring with chain lock on lock body; On lock ring hole ［ 2 ］ ［ 3 ］, have two and put annular distance ［ 14 ］ ［ 15 ］, be used for opening the lock back and place the U-shaped lock ring, its mesopore ［ 14 ］ is opened the top at the door bolt utmost point ［ 6 ］, can utilize the door bolt utmost point ［ 6 ］ to pin a locked groove of U-shaped lock ring, stagger with the door bolt utmost point ［ 7 ］ in hole ［ 15 ］, to prevent by putting the annular distance picking lock; Lock body is fixed on the back vent of bicycle by anchorage clip ［ 16 ］, during the lock car, earlier key is inserted in the ball lock head, rotate key, will fasten the utmost point with a bolt or latch and take in lock ring hole, cross another back vent with U-shaped lock ring card this moment, pass wheel and insert lock ring hole, key is resetted, and the door bolt utmost point stretches out and blocks U-shaped lock ring locked groove, locking end-of-job; Move as preventing, only need chain bolt back on a fixture is got final product with the pinning of U-shaped lock ring; After unblanking, the U-shaped lock ring inserted to put in the annular distance pin, the chain cage plate still is inserted in the cover board slot

Claims (3)

1, a kind of double-safety bicycle theftproof lock, it comprises the lock body that metal is cast, the U-shaped lock ring that separates, lock body is fixed on the key of the fastener that car sticks and the usefulness of unblanking and inserts ball lock head in the lock body, have a pair of lock ring hole that matches with the U-shaped lock ring in the side of lock body, the inside is equipped with the door bolt utmost point by key and ball lock head control respectively, have a locked groove that matches with each door bolt utmost point at two of U-shaped lock ring, put annular distance to what match the vertical one side of lock ring hole being had another with the U-shaped lock ring with this, open above a door bolt utmost point in one of them hole, the position that open in another hole and another door bolt utmost point stagger, the invention is characterized in: a ropy that has locking device [11] with good strength and winding degree is housed on this lock body, and it can be with lock body and another fixture bolt together.

2, double-safety bicycle theftproof lock according to claim 1, it is characterized in that: an end of this ropy is fixed on the lock body, the other end is equipped with a cage plate ［ 12 ］, correspondingly have a cover board slot ［ 13 ］ that matches with this cage plate in the side of lock body one lock ring hole, this cover board slot is vertical with lock ring hole and communicate.

3, double-safety bicycle theftproof lock according to claim 1 and 2 is characterized in that this ropy is chain or wire rope.

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