CN2423358Y - Anti-theft lock for bicycle - Google Patents

Abstract

The utility model discloses a theft-proof lock for a bicycle, which comprises a lock library, a lock handle and a lock head. A cavity of the lock head is provided with a lock core, and both side walls of the lock head are correspondingly and respectively provided with through holes of the lock handle provided with plate openings having unequal specifications; the left wall of the lock library is provided with an insertion hole of the lock handle, and the front and the rear side walls are provided with screw holes through which a lock body and a bicycle body can be fixed. When the theft-proof lock having the structure is used, a theft can not easily screw a fixing screw to disassemble the lock body, and the theft-proof purpose is achieved. The lock handle can lock the bicycle and can also be used as a maintenance tool, and the operation and the portability are convenient.

Description

Anti-theft lock for bicycle

The utility model relates to a kind of anti-theft lock for bicycle.

At present, bicycle generally uses U type or a column type to insert rod formula lock or D type lock, and these locks expose with the fixing back of bicycle fixed screw, make the car stealer turn on screw easily, and theftproof performance is relatively poor.Moreover, run into part when going out by bike and pitch when needing maintenance, there is not maintenance tool very inconvenient, bother very much as carrying instrument with kit.

The utility model and purpose are to provide the anti-theft lock for bicycle of the hidden and band maintenance tool of the fixing screw of a kind of lock body and car body.

For achieving the above object, the technical solution adopted in the utility model is: anti-theft lock for bicycle, comprise the lock storehouse, shank of the key and tapered end, described tapered end is the block of band cavity, tapered end is equipped with lock core in the chamber, lock core connects dead bolt, snap, the wall corresponding shank of the key through hole of establishing respectively in the tapered end front end left and right sides is established the tapered end fixed head on the right wall in tapered end rear end, and described shank of the key is tabular, the specification that is provided with shank of the key does not wait pulls mouth, shank of the key one lateral edges is provided with the lock tooth suitable with dead bolt, and described lock storehouse is the block of band cavity, and lock base left wall is provided with the shank of the key jack, establish lock body and the fixing screw hole of car body on the sidewall of front and back, the rear wall outside is provided with lock storehouse fixed head.

As a kind of improvement of the present utility model, at the shank of the key sheath of tapered end one side up/down perforation, on the tapered end cavity wall, establish a shank of the key jump ring, the shank of the key jump ring is corresponding with the lock tooth.

As another kind of improvement the of the present utility model, shank of the key one end is made as spanner, and the other end is a screwdriver.

As another improvement of the present utility model, be provided with lock storehouse spring with shank of the key jack relative position on the inner right wall of chamber, described lock storehouse.

The utility model is because the right wall in tapered end rear end is provided with the tapered end fixed head, this sidewall front end is provided with the shank of the key through hole, during use, the tapered end fixed head is fixed on the cycle frame by fixed screw, shank of the key injects the shank of the key through hole behind the lock car, just fixed head and fixed screw are kept off in the back, the car stealer is difficult for turning on fixed screw and unties lock body.Be provided with the shank of the key jack at lock base left wall equally, establish fixing screw hole on the sidewall of front and back, the rear wall outside is provided with lock storehouse fixed head, and during installation, fixed screw will lock the storehouse stator by the lock storehouse screw hole on the antetheca of lock storehouse and lock storehouse rear wall is fixed on the bicycle rear vehicle fork, behind the lock car, shank of the key injects the lock storehouse, and shank of the key blocks screw, and fixed screw is hidden behind shank of the key, the thief is difficult for turning on the screw unload lock, reaches antitheft purpose.Owing to also be provided with the mouth of pulling that specification do not wait on the shank of the key, shank of the key can be locked car and can work as maintenance tool again like this, and use is carried very convenient.

Below in conjunction with drawings and Examples utility model is described in further detail.

Fig. 1 is a front view of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is the schematic diagram of the another kind of state of the utility model.

Fig. 4 is a tapered end schematic diagram shown in Figure 1.

As shown in Figure 1 and Figure 2, the utility model comprises tapered end 1, shank of the key 3, lock storehouse 2, and tapered end 1 is equipped with lock core 11 for the block of band cavity in the tapered end 1, and with the lock core 11 vertical dead bolts of establishing, dead bolt one end is connected with snap, and the dead bolt other end is corresponding with the lock tooth 32 on the shank of the key 3.Tapered end 1 front end left and right sides wall is established shank of the key through hole 12, establish tapered end fixed head 13 on the right wall in tapered end 1 rear end, tapered end fixed head 13 can be made of one with tapered end 1, also tapered end fixed head 13 can be fixed together by welding or other modes and tapered end 1, during use, tapered end fixed head 13 is fixed on the cycle frame by screw, during the lock car, after shank of the key 3 injects shank of the key through hole 12, just tapered end fixed head 13 and fixed screw are kept off in shank of the key 3 back, the car stealer is difficult for turning on screw and unties lock body.As Fig. 2, shown in Figure 4, be convenient fixing, tapered end fixed head 13 can be set as two with the suitable lonely template of back fork of bicycle.Compact for lock body is combined with bicycle, on tapered end 1 right wall, open a groove, tapered end fixed head 13 is established and the corresponding auricle of groove with tapered end 1 connection, and auricle sticks into groove.Shank of the key 3 is made as tabular, and available iron plate or corrosion resistant plate, shank of the key 3 one lateral edges have and the corresponding lock tooth 32 of dead bolt, lock during car dead bolt be meshed with lock tooth 32, when unblanking, stir the lock tooth 32 of shank of the key 3 by dead bolt, shank of the key 3 is ejected locks storehouses 2; Shank of the key 3 one ends can be made spanner, and as making " U " type spanner, the other end is made a word or Phillips screwdriver, in shank of the key 3 middle parts and periphery be provided with the hole of pulling of different size, as hexagon ring, square hole etc., shank of the key 3 can be locked car and can work as maintenance tool again like this.Lock storehouse 2 blocks for the band cavity, lock storehouse 2 left walls are provided with shank of the key jack 21, establish fixing screw hole 22 on the sidewall of front and back, and the rear wall outside is provided with lock storehouse fixed head 23, when lock storehouse 2 is installed, fixed screw passes that lock storehouse screw hole 22 on lock storehouse 2 antethecas will lock storehouse stator 23 and lock storehouse 2 rear walls are fixed on the bicycle rear vehicle fork, and when the lock car, shank of the key 3 injects locks storehouses 2, shank of the key 3 blocks fixed screw, fixed screw is hidden behind shank of the key 3, and the thief is difficult for turning on the fixed screw unload lock, reaches antitheft purpose.When unblanking, when stirring dead bolt with key rotation lock core 11, dead bolt is stirred shank of the key 3, and shank of the key 3 is deviate from lock 2 chambeies, storehouse, in order to allow shank of the key 3 light ejection lock storehouses 2, on the 2 chamber inner right walls of lock storehouse, be provided with lock storehouse 2 springs with shank of the key 3 jack relative positions, when the lock car, shank of the key 3 withstands spring, during unlatching, dead bolt is stirred shank of the key 3, and shank of the key 3 ejects lock storehouse 2 under the spring force effect.As shown in Figure 3, have the shank of the key sheath 15 of up/down perforation in tapered end 1 one sides, establish a shank of the key jump ring 14 on tapered end 1 cavity wall, shank of the key jump ring 14 is corresponding with lock tooth 32, after unblanking, shank of the key 3 injects shank of the key sheath 15, shank of the key jump ring 14 is meshed with lock tooth 32 on the shank of the key 3, like this, and in the bicycle running process, run into Uneven road or other situations, prevent shank of the key 3 tapered end of being run out.

Claims (4)

1, a kind of anti-theft lock for bicycle, comprise the lock storehouse, shank of the key and tapered end, it is characterized in that: described tapered end (1) is the block of band cavity, tapered end (1) is equipped with lock core (11) in the chamber, lock core (11) connects dead bolt, snap, the corresponding shank of the key through hole (12) of establishing respectively of tapered end (1) front end left and right sides wall, establish tapered end fixed head (13) on the right wall in tapered end (1) rear end, described shank of the key (3) is tabular, the specification that is provided with shank of the key (3) does not wait pulls mouth, shank of the key (3) one lateral edges are provided with the lock tooth (32) suitable with dead bolt, described lock storehouse (2) is the block of band cavity, the left wall in lock storehouse (2) is provided with shank of the key jack (21), establishes the fixing screw hole (22) of lock body and car body on the sidewall of front and back, and the rear wall outside is provided with lock storehouse fixed head (23).

2, anti-theft lock for bicycle according to claim 1 is characterized in that: establish the shank of the key sheath (15) of up/down perforation in tapered end (1) one side, establish a shank of the key jump ring (14) on tapered end (1) cavity wall, shank of the key jump ring (14) is corresponding with lock tooth (32).

3, anti-theft lock for bicycle according to claim 1 is characterized in that: shank of the key (3) one ends are made as spanner, and the other end is a screwdriver.

4, anti-theft lock for bicycle according to claim 1 is characterized in that: be provided with lock storehouse spring (24) with shank of the key jack (21) relative position on the inner right wall of chamber, described lock storehouse (2).

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