CN2140940Y - Anti-theft lock for bicycles - Google Patents

Abstract

The utility model provides an anti-theft lock for bicycles, which is suitable for the anti-theft use for bicycles, motorcycles, tricycles, and flatcars. The utility model is characterized in that an enclosed lock core and a lock rod are adopted, and the utility model comprises a lock body (1), a lock core box (2), a lock core (3), a lock rod (4), and a lock rod box (6). The utility model is firm, which can efficiently achieve the anti-theft use for bicycles, motorcycles, tricycles, and flatcars.

Description

Anti-theft lock for bicycles

The utility model relates to a kind of lock, is particularly suitable for the anti-lock of usurping of bicycle, motorcycle, tricycle and wooden handcart.

What existing lock adopted on lock core is spring assembly, and lock core box is easy to again pry open with screwdriver or iron plate, at this moment, touches spring and just can open by a lock, can not play antitheft effect well.

The purpose of this utility model provides a kind of lock core box and is not easy the closed lock pried open, makes it can effectively play antitheft effect.

For achieving the above object, the utility model has adopted following technical scheme: lock body adopts shape of a saddle bead structure, lock core box adopts rectangle pentahedron as shown in Figure 2, lock core is formed by textural association shown in Figure 4 by the tapered end of the drawer-lock of common usefulness and the dead bolt of band spring assembly, and lock core is fastened in the lock core box.Locking bar is a hollow cylinder, has a groove at the place, center line both sides of locking bar, adorns a compression spring in the locking bar, and two ends utilize roll extrusion to seal.The locking bar box adopts rectangle pentahedron as shown in Figure 3, locking bar is passed circular hole on the locking bar box, and the groove that passes on the locking bar with a rivet is riveted on the right of lock body with it with the locking bar box, and the compression spring in the locking bar is between rivet and the locking bar right-hand member.The other end place of locking bar has a lock tongue slot that matches with the dead bolt of lock core, and a side of dead bolt is an inclined-plane.Lock core box and locking bar box are riveted on the left side and the right of lock body respectively with rivet.The base of lock core box and locking bar box all closely fastens with the crimping of lock body.

During locking, earlier push locking bar to the lock core end, spring pressurized energy storage this moment utilizes the elastic reaction of latch bolt spring mechanism, pushes dead bolt triangular in shape the lock tongue slot of locking bar left end to, has just realized the function of locking.

When unblanking, only need to insert lockhole with key and rotate a circle, locking bar promptly automatically springs open under the effect of spring.

The utility model advantage compared with prior art is:

1, lock body adopts bead structure, locking bar box, lock core box is held in the bulk strength that has increased lock on the lock body.Locking bar box, locking bar, lock core box and lock core all adopt enclosed construction, make it more effectively play antitheft effect.

2, tapered end adopts the tapered end of drawer-lock commonly used, has both utilized its toggle mechanism to have the advantage of self-locking property, utilizes existing production technology again.

3, be different from traditional closedown mode.The locking bar rectilinear motion has functional performance preferably.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the schematic cross-section of the utility model lock core box.

Fig. 3 is the schematic cross-section of the utility model locking bar box.

Fig. 4 is the structural representation of the utility model lock core.

Below in conjunction with embodiment the utility model is done detailed explanation.

Embodiment:

Lock body (1) is a stamping parts, adopt shape of a saddle structure, lock core box (2) adopts rectangle pentahedron as shown in Figure 2, also be stamping parts, lock core (3) is formed by textural association shown in Figure 4 by the tapered end of the drawer-lock of common usefulness and the dead bolt (8) of band spring, and lock core (3) is fastened in the lock core box (2), locking bar (4) is a hollow cylinder, place, center line both sides at locking bar has a groove, adorns a compression spring (5) in the locking bar (4), and two ends utilize roll extrusion to seal.Locking bar box (6) adopts rectangle pentahedron as shown in Figure 3, it also is stamping parts, locking bar (4) is passed circular hole on the locking bar box (3), and the groove that passes on the locking bar (4) with a rivet (7) is riveted on the right-hand member of lock body (1) with it with locking bar box (6), and the backspace spring (5) in the locking bar (4) is between rivet (7) and locking bar (4) right-hand member, the left end place of locking bar (4) has a female locks glossal canal that matches with the dead bolt (8) of lock core (2), with rivet lock core box (2) and locking bar box (6) are riveted on the left side and the right of lock body (1) respectively again, and the link closely base of lock core box (2) and locking bar box (6) of the crimping of punching press lock body (1).

Claims (4)

1, a kind of anti-theft vehicle lock of forming by lock body (1), lock core box (2), lock core (3), locking bar (4), locking bar box (6), it is characterized in that: lock body (1) crimping, locking bar (4) adopt closed at both ends, in the tubular structure that compression spring (5) and center line both sides have a groove is housed, lock core (3) is enclosed in the lock core box (2), and lock core box (2) is embedded in the crimping of lock body (1) with the base of locking bar box (6).

2, lock according to claim 1 is characterized in that: this lock pin (2) by the tapered end of the drawer-lock of common usefulness and as shown in Figure 4 the dead bolt (8) of the band spring of structure combine.

3, lock according to claim 1 and 2 is characterized in that: the dead bolt (8) that an end of the close lock core (3) of this lock locking bar (4) has a female locks glossal canal and lock core (2) matches.

4, lock according to claim 1 and 2 is characterized in that: the dead bolt (8) of this lock pin (2) is an inclined-plane by locking bar box (6) one sides.

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