CN2467374Y

CN2467374Y - Blind type bicycle lock

Info

Publication number: CN2467374Y
Application number: CN 01205725
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: 2001-02-06
Filing date: 2001-02-06
Publication date: 2001-12-26
Anticipated expiration: 2011-02-06

Abstract

The utility model relates to a concealed 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 having the structure that a lock shell can rotate and a lock core shaft can not rotate is arranged in a lock core hole, and the lock core shaft is fixed on the lock body. A gear rack and a ball clamp body are arranged in the lock body; teeth of the gear rack are engaged with the teeth on the surface of the lock shell; the gear rack is fixedly connected with the ball clamp body, wherein, the end of which is provided with a ring arc-shaped groove, and a spring is arranged between the bottom surface of the ball clamp body and the bottom of the lock body. 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 the advantages of favorable theft-proof function, convenient storage and difficult loss.

Description

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:

Hidden lock for bike mainly comprises members such as lock body, core, tooth bar, card pearl body, spring 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 lock housing core rotatable, that lock mandrel is rotatable places lock core hole, and lock mandrel is fixed on the lock body lock housing surface formation tooth; A tooth bar and a card pearl body are arranged in the lock body, tooth on tooth bar tooth proper and the lock housing surface meshes, tooth bar is terminal to be fixed together with card pearl body top, and the terminal ring arc groove that forms of card pearl body is provided with a spring between card pearl body bottom surface and the lock body bottom; 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.

Above-mentioned lock body is offered a knock hole on the lock core hole opposite, the inner end of lock mandrel is protruded and formed registration mast, and lock mandrel is inserted in the knock hole by registration mast and is fixed on the lock body.

The terminal inserting column that forms of above-mentioned tooth bar, card pearl body top has jack, tooth bar fixedly be inserted in the jack by inserting column and with block the pearl body and be connected transmission.

Offer a chute on the wall on above-mentioned lock body top in addition, tooth bar places lock body by chute, and the tooth bar outside is on the chute.

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 drawings and Examples, the utility model is further described.

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

Fig. 2 is the utility model combination action diagram one;

Fig. 3 is the partial enlarged drawing of Fig. 2;

Fig. 4 is the utility model combination appearance figure;

Fig. 5 is the utility model unlocking condition figure (partial cutaway of Fig. 4 is shown);

Fig. 6 is the utility model blocking figure.

See also shown in Figure 1ly, the hidden lock for bike that the utility model provides mainly comprises members such as lock body 1, core 2, tooth bar 3, card pearl body 4, spring 5 and steel ball 6, 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.On the wall on lock body 1 top, offer a lock core hole 11, offer a knock hole 12 on lock core hole 11 opposites; Offer the chute 13 of a long strip type on the wall on lock body 1 top in addition, also symmetry is offered two hole of beads 14 on the wall of lock body 1.

A core 2 places lock core hole 11, the lock housing 21 of this core 2 turns, lock mandrel 22 is rotatable, and the inner end of lock mandrel 22 is protruded and is formed registration mast 23, and lock mandrel 22 is inserted in the knock hole 12 by registration mast 23 and is fixed on the lock body, and the surface of lock housing 21 forms tooth.

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 tooth bar 3 places lock body 1 by chute 13, and the outside of tooth bar 3 is on the chute 13, the tooth on the tooth bar 3 just with the teeth engagement on lock housing 21 surfaces, tooth bar 3 terminal formation inserting columns 31.

A card pearl body 4 is arranged in the lock body 1, card pearl body 4 tops have jack 41, tooth bar 3 fixedly is inserted in the jack 41 by inserting column 31 and is connected transmission with card pearl body 4, and card pearl body 4 is terminal to be formed one and encircle 42, one springs 5 of arc grooves and be arranged between card pearl body 4 bottom surfaces and lock body 1 bottom.

Two steel balls 6 are placed in the arc groove 42, and just are on two hole of

beads

14,92 of lock body 1 and front fork center shaft 9.

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, lock mandrel 22 is fixed on the lock body 1, again tooth bar 3 is placed lock body 1, make the tooth engagement on tooth on the tooth bar 3 and lock housing 21 surfaces, then, to block pearl body 4 and place lock body 1, tooth bar 3 ends and card pearl body 4 tops are fixed together, simultaneously, between card pearl body 4 bottom surfaces and lock body 1 bottom, fix a spring 5, then, to assemble core 2, tooth bar 3, card pearl body 4, the lock body 1 of spring 5 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 6 is placed on the hole of bead 14 of arc groove 42 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 6 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, as Fig. 4, shown in 5.

When the utility model uses, at unlocking condition, as shown in Figure 5, steel ball 6 only is on the hole of

bead

14,92 of the arc groove 42 of card pearl body 4 and lock body 1 and front fork center shaft 9, be not in the hole of bead 82 of vehicle frame 8 no any location between front fork center shaft 9 and the vehicle frame 8 and can relatively rotating.

When desiring locking, 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 housing 21 rotates thereupon, tooth and the engagement of the tooth on the tooth bar 3 by lock housing 21 surfaces, be transmitted in tooth bar 3 and move down, push card pearl body 4 also moves down, the arc groove 42 of card pearl body 4 ends gradually with the hole of bead 14 dislocation of lock body 1, and card pearl body 4 ejects steel ball 6 gradually, make steel ball 6 be in lock body 1 and front fork center shaft 9, the hole of bead 14 of

vehicle frame

8,92, on 82, as shown in Figure 6, invar pearl 6 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, as shown in Figure 4.

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 housing 21 rotates thereupon, tooth and the engagement of the tooth on the tooth bar 3 by lock housing 21 surfaces, being transmitted in tooth bar 3 moves up, push card pearl body 4 also moves up, the arc groove 42 of card pearl body 4 ends again gradually with the hole of bead 14 aligned positions of lock body 1, steel ball 6 falls into the arc groove 42 of card pearl body 4 again, and is 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 5, no longer include steel ball 6 location between front fork center shaft 9 and the vehicle frame 8 and can relatively rotate, extract key out, promptly be unlocking condition.

Claims

1, hidden lock for bike is characterized in that: mainly comprise members such as lock body, core, tooth bar, card pearl body, spring 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 lock housing core rotatable, that lock mandrel is rotatable places lock core hole, and lock mandrel is fixed on the lock body lock housing surface formation tooth; A tooth bar and a card pearl body are arranged in the lock body, tooth on tooth bar tooth proper and the lock housing surface meshes, tooth bar is terminal to be fixed together with card pearl body top, and the terminal ring arc groove that forms of card pearl body is provided with a spring between card pearl body bottom surface and the lock body bottom; 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: lock body is offered a knock hole on the lock core hole opposite, and the inner end of lock mandrel is protruded and formed registration mast, and lock mandrel is inserted in the knock hole by registration mast and is fixed on the lock body.

3, a kind of hidden lock for bike as claimed in claim 1 or 2 is characterized in that: the terminal inserting column that forms of tooth bar, card pearl body top has jack, tooth bar fixedly be inserted in the jack by inserting column and with block the pearl body and be connected transmission.

4, a kind of hidden lock for bike as claimed in claim 3 is characterized in that: offer a chute on the wall on lock body top in addition, tooth bar places lock body by chute, and the tooth bar outside is on the chute.