CN2101721U - High safety lock for bicycle - Google Patents

Abstract

The utility model discloses a bicycle lock which can be provided with a chain, comprising a lock case, a lock machine, and a lock ring and a spring thereof. The lock case can be arranged on a bicycle. The bicycle lock which can be provided with a chain is characterized in that the lock machine comprises a case, a sliding part and the spring thereof, and a cylinder; one end of the sliding part is a key hole, the other end is the fastening hook of the chain, and the middle is provided with the through hole of the lock ring; the case is provided with the inserting position of the fastening hook and the through hole of the lock ring. Compared with a horseshoe-shaped lock and a chain locked which are commonly used at present and the association schemes thereof, the bicycle lock which can be provided with a chain has the advantages of difficult prying and high safety degree.

Description

High safety lock for bicycle

The utility model belongs to a kind of shape of a hoof bicycle lock, particularly can have the bicycle lock of chain lock.

The bicycle lock that generally uses is the u-shaped lock of band chain bar not for a long time, has occurred chain lock in recent years again, and people have proposed scheme that u-shaped lock and chain lock are integrated on this basis, promptly has the u-shaped lock of chain.Be for No. 87200878, but because this scheme is used trouble, complex structure that the applicant has proposed the improvement project of No. the 90204402nd, Chinese patent application, to have reached simple in structure, easy to use as Chinese patent application.But because the chain groove is to be made on the housing, so portion of chain is pried open easily; And u-shaped lock has partly kept original structure, and lock machine partly disperses to be loaded in the lock housing, so the insurance degree is also lower.

But the purpose of this utility model provides a kind of bicycle lock that improves the band chain bar of structure, and it all improves u-shaped lock part and chain lock part, makes it all to be not easy to be pried open, and the insurance degree is higher.

The utility model is achieved in that a kind of bicycle lock of high insurance degree, comprise lock housing and device lock machine thereon, lock ring, the lock ring spring, have on the lock housing in order to locking is fixed on the eyelet on the bicycle, keyhole on the lock machine is exposed to outside the lock housing, it is characterized in that lock machine comprises casing and is loaded on its interior sliding part by the key propelling, the sliding part spring, two groups or two groups of above pellet shot from a slingshot assemblies, one end of sliding part is a keyhole, its other end has an overhanging clasp that is used for the snap close chain, a lock ring perforation is arranged in the middle of it, an indent position for the insertion of clasp openend is arranged on the casing, and there is lock ring to bore a hole.

The lock machine of such scheme can be located at the lock housing center of top, also can be located at lock housing one side.The pellet shot from a slingshot assembly of such scheme and general the same pellet shot from a slingshot and the marble spring of having comprised of cylinder lock.

Such scheme is concentrated whole parts of lock machine and is contained in the casing, and does not disperse to be loaded in the lock housing as the lock machine part of u-shaped lock, so after lock housing of the present utility model was pried open, the lock machine part also was within the casing and can't pushes aside; Such scheme comes the snap close chain with a clasp, because clasp can arbitrarily be done thicklyer, rather than is placed on chain in the groove of lock housing, so the chain lock part also is not easy to be pried open, visible bicycle lock insurance degree of the present utility model is bigger.

Below in conjunction with accompanying drawing the utility model is done to describe more specifically.

Fig. 1 is the schematic diagram of a kind of scheme of the utility model.

Fig. 2 is the A-A sectional view of Fig. 1, is blocking.

Fig. 3 is the unlocking condition schematic diagram of Fig. 2.

Fig. 4 is the B-B sectional view of Fig. 2.

With reference to Fig. 1～Fig. 4, this bicycle lock, comprise lock housing 1 and setting lock machine 2 thereon, lock ring 3, lock ring spring 4, have on the lock housing 1 in order to locking is fixed on eyelet 5 on the car body voluntarily etc., there is keyhole 6 to be exposed to outside the lock housing on the lock machine 2, it is characterized in that lock machine 2 comprises casing 7 and is loaded on its interior sliding part 8 by the key propelling, sliding part spring 9, three groups of pellet shot from a slingshot assemblies 10 etc., one end of sliding part 8 is keyholes 6, its other end has an overhanging clasp 11 that is used for the snap close chain ring, a lock ring perforation 12 is arranged in the middle of it, an indent position 13 for the openend insertion of clasp 11 is arranged on the casing 7, and lock ring perforation 14 etc. arranged.

In the use, blocking as shown in Figure 1 and Figure 2, when the handgrip 15 of pressing lock ring 3 during to lock ring breach 16 alignment holes 12, spring 9 just promotes sliding part 8 and outwards moves, the peritreme in hole 12 is stuck in and makes lock ring 3 lockings on the breach 15, simultaneously the openend of clasp 11 also inserts position 13 and at this moment closure can be locked in two end links of a chain on the clasp 11, and pellet shot from a slingshot assembly 10 grades have also been pinned sliding part 8; Unlocking condition as shown in Figure 3, behind the key insertion hole 6, pellet shot from a slingshot assembly 10 grades are no longer pinned sliding part 8, at this moment available key promotes sliding part 8 and moves inward, and the peritreme in hole 12 withdraws from breach 15, and lock ring 3 is in unlocking condition under the pulling of spring 4, the openend of clasp 11 withdraws from position 13 and opening simultaneously, at this moment the chain link of chain just can withdraw from or penetrate clasp 11, and the chain that matches with clasp 11 can adopt general chain, does not have specific (special) requirements.

Claims (1)

1. A kind of bicycle lock of high insurance degree, comprise lock housing and device lock machine thereon, lock ring, the lock ring spring, have on the lock housing in order to locking is fixed on the eyelet on the bicycle, keyhole on the lock machine is exposed to outside the lock housing, it is characterized in that lock machine comprises casing and is loaded on its interior sliding part by the key propelling, the sliding part spring, two groups or two groups of above pellet shot from a slingshot assemblies, one end of sliding part is a keyhole, its other end has an overhanging clasp that is used for the snap close chain, a lock ring perforation is arranged in the middle of it, an indent position for the insertion of clasp openend is arranged on the casing, and there is lock ring to bore a hole.

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