CN2467375Y

CN2467375Y - Hidden bicycle lock

Info

Publication number: CN2467375Y
Application number: CN 01217739
Authority: CN
Inventors: 王腾云
Original assignee: SHENGCANG CAR-MOTORCYCLE FITTINGS Co LTD WENZHOU
Current assignee: SHENGCANG CAR-MOTORCYCLE FITTINGS Co LTD WENZHOU
Priority date: 2001-02-28
Filing date: 2001-02-28
Publication date: 2001-12-26
Anticipated expiration: 2011-02-28

Abstract

The utility model relates to a hidden bicycle lock. A lock body is fixed in a central shaft of one part of a front fork on a bicycle rack; the top wall of the lock body is provided with a lock core hole; a lock core is arranged in the lock core hole; a reversing gear is formed at the bottom of a lock core shaft; a ball clamping body is arranged in the lock body through a clamp spring on the bottom end, a gear which is engaged with the reversing gear of the lock core shaft is formed on the top of the ball clamping body, and the tail end of the ball clamping body is provided with an arc-shaped groove. The lock body wall is provided with a ball hole corresponding to the arc-shaped groove; a key hole and the ball hole are also correspondingly formed on the central shaft of the front fork and the bicycle rack; steel balls are arranged on the arc-shaped groove and the ball hole. The lock has favorable theft-proof function, the storage is convenient, and the loss is difficult.

Description

A kind of hidden lock for bike

The utility model relates to a kind of hidden lock for bike.

Usually, locks adapted for bicycle has two kinds, a kind of is the dish lock that directly is fixed on the bicycle rear place, and another kind is the random chain lock of stationary bicycle, and these two kinds of locks all are exposed to outside the car body, the burglar is very easy to commit theft by instrument destruction lock body, and afterwards a kind of chain lock is not fixed on the car body, in the use, often takes up and down from car body, both be not easy to keeping, also very easily lost.

The purpose of this utility model is to provide a kind of hidden lock for bike, and it has good anti-theft feature, and is convenient to keeping, is difficult for losing.

For reaching above-mentioned purpose, solution of the present utility model is:

A kind of hidden lock for bike mainly comprises members such as lock body, core, card pearl body and steel ball; Lock body is fixed on bicycle front fork and is set in that section center shaft on the vehicle frame, offers a lock core hole on the wall on lock body top; A core places lock core hole, and reversing gear is formed on the lock mandrel bottom; A card pearl body is arranged in the lock body, and card pearl body top forms and lock mandrel reversing gear mating gear the terminal arc groove that forms of card pearl body; Corresponding arc groove is also offered the hole of bead on the wall of lock body, and the key hole of the corresponding core of front fork center shaft and vehicle frame and the hole of bead of lock body also form the key hole and the hole of bead; Steel ball is placed in the arc groove, also just is on the hole of bead of lock body and front fork center shaft.

A groove is offered in the bottom of corresponding card pearl body on the inwall of above-mentioned lock body end, and a jump ring places this groove, will block that the pearl body is spacing to be arranged in the lock body.

Adopt said structure, the utility model compared with prior art is installed in bicycle inside because of lock body is hidden, and the burglar can't destroy lock body by instrument and commit theft under the prerequisite of not damaging frame, so, have good anti-theft feature; And, because lock body is fixedly mounted on car inside,, needn't consider the collection of lock body so only need carry key, both be convenient to keeping, also be difficult for losing.

Below in conjunction with accompanying drawing and most preferred embodiment, the utility model is further described.

Fig. 1 is the utility model three-dimensional exploded view;

Fig. 2 is the utility model assembled state External view (unlocking condition);

Fig. 3 is the local enlarging section view of Fig. 2;

Fig. 4 is the utility model running condition External view (blocking figure);

Fig. 5 is the local enlarging section view of Fig. 4.

See also shown in Fig. 1,2, a kind of hidden lock for bike that the utility model provides mainly comprises members such as lock body 1, core 2, card pearl body 3 and steel ball 4, wherein:

Lock body 1 is fixed on bicycle front fork by two rivets and is set in that section center shaft 9 on the vehicle frame 8.Offer a lock core hole 11 on the wall on lock body 1 top, also symmetry is offered two hole of beads 14 on the wall of lock body 1, offers a groove 15, one jump rings 16 in addition and place this groove 15 on the inwall of lock body 1 end.

A core 2 places lock core hole 11, and the lock housing of this core 2 and lock body 1 are one-body molded, and the bottom of lock mandrel 21 is protruded and formed reversing gear 22.

The key hole of front fork center shaft 9 and vehicle frame 8 corresponding cores 2 and the hole of bead 14 of lock body 1 all

form

91,81 and two hole of

beads

92,82 of a key hole, and during the position alignment in key hole 91, the hole of bead 92 and key hole 81, the hole of bead 82, the handle that is fixed on front fork center shaft 9 tops is miter angle.

A card pearl body 3 places groove 15 and the spacing lock body 1 that is arranged on by jump ring 16, card pearl body 3 tops form and core 2 reversing gears 22 mating gear 31, by the engagement of reversing gear 22 with gear 31, can make core 22 drive card pearl body 3 and rotate, the card pearl body 3 terminal ring arc grooves 32 that form.

Two steel balls 4 are placed in the arc groove 32, and just are on two hole of

beads

14,92 of lock body 1 and front fork center shaft 9, cooperate shown in Figure 3.

During the utility model assembling, as Fig. 2, shown in 3, earlier core 2 is placed the lock core hole 11 of lock body 1, to block pearl body 3 again and place lock body 1, make the gear 31 on card pearl body 3 tops and reversing gear 22 engagements of lock mandrel 21 bottoms, and between card pearl body 3 bottoms and lock body 1 inwall, snap ring 16 is fixed a groove 15, then, to assemble core 2, the lock body 1 of card pearl body 3 is fixed in the front fork center shaft 9 by rivet, make 14 positions, the hole of bead of the key hole of the key hole 91 of front fork center shaft 9 and the hole of bead 92 and core 2 and lock body 1 corresponding, and steel ball 4 is placed on the hole of bead 14 of arc groove 32 and lock body 1 and front fork center shaft 9, on 92, at last, the front fork center shaft 9 of having assembled lock body 1 and steel ball 4 placed be fixed in the vehicle frame 8, the key hole 81 and the hole of bead 82 on the vehicle frame 8 are in together on the circumference with the key hole of core 2 and the hole of bead 14 of lock body 1, promptly finish the combination of whole lock body.

When the utility model uses, at unlocking condition, shown in Fig. 2,3, steel ball 4 only is on the hole of

bead

14,92 of the arc groove 32 of card pearl body 3 and lock body 1 and front fork center shaft 9, be not in the hole of bead 82 of vehicle frame 8 location that no any obstruction is rotated between front fork center shaft 9 and the vehicle frame 8 and can relatively rotating.

When desiring locking, as Fig. 4, shown in 5, rotate front fork center shaft 9 earlier, the key hole 81 and the hole of bead 82 on the vehicle frame 8 are aimed at the key hole 91 and the hole of bead 92 of front fork center shaft 9 respectively, again key is passed vehicle frame 8 successively, front fork center shaft 9, the key hole of core 2, insert in the core 2, key, drive lock mandrel 21 rotates thereupon, by the engagement of reversing gear 22 with gear 31, being transmitted in card pearl body 3 also rotates, the arc groove 32 of card pearl body 3 ends gradually with the hole of bead 14 dislocation of lock body 1, and card pearl body 3 ejects steel ball 4 gradually, makes steel ball 4 be in lock body 1 and front fork center shaft 9, the hole of bead 14 of

vehicle frame

8,92, on 82, invar pearl 4 location and can not relatively rotating between front fork center shaft 9 and the vehicle frame 8, extract key out, promptly be blocking, at this moment, the handle that is fixed on front fork center shaft 9 tops is miter angle, can make things convenient for parking of bicycle.

When desiring to unblank again, directly key is passed vehicle frame 8 successively, front fork center shaft 9, the key hole of core 2, insert in the core 2, key in the opposite direction, drive lock mandrel 21 rotates thereupon, by the engagement of reversing gear 22 with gear 31, being transmitted in card pearl body 3 also rotates, the arc groove 32 of card pearl body 3 ends again gradually with the hole of bead 14 aligned positions of lock body 1, steel ball 4 falls into the arc groove 32 of card pearl body 3 again, and be in the hole of bead 14 of lock body 1 and front fork center shaft 9, on 92, and be not in the hole of bead 82 of vehicle frame 8, as shown in Figure 3, no longer include steel ball 4 location between front fork center shaft 9 and the vehicle frame 8 and can relatively rotate, extract key out, promptly be unlocking condition.

In a word, key of the present utility model is: card pearl body 3 drives by lock mandrel 21 and rotates, and steel ball 4 is ejected, and steel ball 4 is stuck between lock body 1, front fork center shaft 9 and the vehicle frame 8, makes front fork center shaft 9 rotate, and reaches anti-theft feature.Wherein, card pearl body 3 also can be connected transmission with lock mandrel 21 by alternate manner, and its effect is equal to.

Claims

1, a kind of hidden lock for bike is characterized in that: mainly comprise members such as lock body, core, card pearl body and steel ball; Lock body is fixed on bicycle front fork and is set in that section center shaft on the vehicle frame, offers a lock core hole on the wall on lock body top; A core places lock core hole, and reversing gear is formed on the lock mandrel bottom; A card pearl body is arranged in the lock body, and card pearl body top forms and lock mandrel reversing gear mating gear the terminal arc groove that forms of card pearl body; Corresponding arc groove is also offered the hole of bead on the wall of lock body, and the key hole of the corresponding core of front fork center shaft and vehicle frame and the hole of bead of lock body also form the key hole and the hole of bead; Steel ball is placed in the arc groove, also just is on the hole of bead of lock body and front fork center shaft.

2, a kind of hidden lock for bike as claimed in claim 1 is characterized in that: a groove is offered in the bottom of corresponding card pearl body on the inwall of lock body end, and a jump ring places this groove.