CN2475645Y

CN2475645Y - Hidden lock for bicycle

Info

Publication number: CN2475645Y
Application number: CN 01217740
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: 2002-02-06
Anticipated expiration: 2011-02-28

Abstract

Disclosed is a hidden type lock for a bicycle, a lock body is fixed on a central axis section of a bicycle front fork which penetrates and is arranged on a bicycle frame, the top end of the lock body and the wall on the opposite bottom end are respectively provided with a lock barrel hole and a ball hole; the lock barrel is fixed in the lock barrel hole, the bottom end of a lock barrel axis is axially provided with a pin; a lock tongue is arranged in the lock body, the corresponding pin is provided with a guide channel, the end of the lock tongue relative to the ball hole composes an arc push-poke plane; the key hole of the lock barrel corresponding to the central axis of the front fork and the bicycle frame and the ball hole of the lock body also compose a key hole and a ball hole; a steel ball is placed on the arc push-poke plane, and is just placed in the ball hole of the lock body and the central axis of the front fork. The lock has a good theft-proof function, is convenient to keep, is uneasy to lose.

Description

A kind of hidden lock of bicycle

The utility model relates to a kind of hidden lock of bicycle.

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 of bicycle, 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 of bicycle mainly comprises members such as lock body, core, dead bolt 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, and offers a hole of bead on the wall of bottom over there; A core is fixed in the lock core hole, and a pin is axially established in the bottom of lock mandrel; A dead bolt is arranged in the lock body, and corresponding pin is offered a guide groove on the dead bolt, and the terminal corresponding hole of bead of dead bolt forms the arc pushing and turning surface; 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 on the arc pushing and turning surface, also just is on the hole of bead of lock body and front fork center shaft.

Offer fixed orifice on the lock mandrel bottom face of above-mentioned core, pin is fixedly in the plant fixed orifice.

Symmetry is offered two slots on the lock housing base end wall of above-mentioned core, and offers the chute of a perforation on the lock body, and lock body is offered an assembly opening on the opposite of lock core hole; Dead bolt is inserted by chute, and interts on two slots of lock housing, and to guarantee the accuracy of dead bolt axial motion, pin is put into by assembly opening, is fixed in the bottom of lock mandrel and is in the guide groove of dead bolt.

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 (one);

Fig. 2 is the utility model three-dimensional exploded view (two);

Fig. 3 is the utility model assembled state External view;

Fig. 4 is the local amplification view of Fig. 3;

Fig. 5 is the utility model running condition External view (blocking figure);

Fig. 6 is the local enlarging section view of Fig. 5.

See also shown in Fig. 1,2, a kind of hidden lock of bicycle that the utility model provides mainly comprises members such as lock body 1, core 2, dead bolt 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.On the wall on lock body 1 top, offer a lock core hole 11, offer an assembly opening 12, on lock body 1, offer the chute 13 of a perforation on lock core hole 11 opposites, on the wall of lock body 1 bottom, also offer a hole of bead 14 below the assembly opening 12.

A core 2 places lock core hole 11, offers fixed orifice 22 on lock mandrel 21 bottom faces of this core 2, so that in the pin 23 axial restraint plant fixed orifices 22; Symmetry is offered two slots 25 on lock housing 24 base end wall of this core 2.

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 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 dead bolt 3 is inserted in the lock body 1 by chute 13, and intert on two slots 25 of lock housing 24, and a guide groove 31 is offered in the position of corresponding pin 23 on the dead bolt 3, pin 23 just is in the guide groove 31 of dead bolt 3 when putting into lock body 1 by assembly opening 12 and being fixed in the fixed orifice 22 of lock mandrel 21 bottoms, dead bolt 3 ends are in the bottom in the lock body 1, and the corresponding hole of bead 14 forms arc pushing face-drawing 32.

Steel ball 4 is placed on the arc pushing and turning surface 32, also just is on the hole of

bead

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

During the utility model assembling, as Fig. 3, shown in 4, earlier core 2 is placed the lock core hole 11 of lock body 1, two slots 25 of lock housing 24 and the chute 13 of lock body 1 are connected, again dead bolt 3 is inserted in the lock body 1 by chute 13, and intert on two slots 25 of lock housing 24, to guarantee the accuracy of dead bolt 3 axial motions, and pin 23 put into lock body 1 by assembly opening 12, be fixed in the fixed orifice 22 of lock mandrel 21 bottoms, and the guide groove 31 of dead bolt 3 just cooperates with pin 23, at this moment, the arc pushing and turning surface 32 of dead bolt 3 is in a side of 14 belows, lock body 1 hole of bead, then, to assemble core 2, the lock body 1 of dead bolt 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 pushing and turning surface 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, as shown in Figure 4, steel ball 4 only is on the hole of

bead

14,92 of the arc pushing and turning surface 32 of dead bolt 3 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, as Fig. 5, shown in 6, 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, pin 23 by lock mandrel 21 bottom faces promotes dead bolt 3 when pin 23 is rotated with lock mandrel 21 and axially moves to the bottom of lock body 1 with during the guide groove 31 of dead bolt 3 cooperates, and the arc pushing and turning surface 32 of dead bolt 3 ends is under the hole of bead 14 of lock body 1 gradually, simultaneously, gradually steel ball 4 is ejected, make 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, as shown in Figure 5, 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 pin 23 on lock mandrel 21 bottom faces with during the guide groove 31 of dead bolt 3 cooperates, promoting dead bolt 3 when pin 23 is rotated with lock mandrel 21 axially moves to the top of lock body 1, the arc pushing and turning surface 32 of dead bolt 3 ends again gradually with the hole of bead 14 dislocation of lock body 1, simultaneously, steel ball 4 drops on the arc pushing face-drawing 32 of dead bolt 3 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 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: dead bolt 3 drives to do by pin on the lock mandrel 21 23 and endwisely slips, 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.

Claims

1, a kind of hidden lock of bicycle is characterized in that: mainly comprise members such as lock body, core, dead bolt 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, and offers a hole of bead on the wall of bottom over there; A core is fixed in the lock core hole, and a pin is axially established in the bottom of lock mandrel; A dead bolt is arranged in the lock body, and corresponding pin is offered a guide groove on the dead bolt, and the terminal corresponding hole of bead of dead bolt forms the arc pushing and turning surface; 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 on the arc pushing and turning surface, also just is on the hole of bead of lock body and front fork center shaft.

2, a kind of hidden lock of bicycle as claimed in claim 1 is characterized in that: offer fixed orifice on the lock mandrel bottom face of core, pin is fixedly in the plant fixed orifice.

3, a kind of hidden lock of bicycle as claimed in claim 1 or 2 is characterized in that: symmetry is offered two slots on the lock housing base end wall of core, and offers the chute of a perforation on the lock body, and lock body is offered an assembly opening on the opposite of lock core hole; Dead bolt is inserted by chute, and interts on two slots of lock housing, and pin is put into by assembly opening, is fixed in the bottom of lock mandrel and is in the guide groove of dead bolt.