CN2061959U - Prize-proof bicycle lock - Google Patents

Abstract

The utility model belongs to a mechanical lock, comprising a lock body, a lock head, a lock core, a rack bar, a gear, a safety latch and a spring. The lock body is an annular body with an opening and a solid core, and the lock body does rectilinear motion by using the mesh of the gear and the rack bar. When a key is inserted into the mechanical lock, the cylinder of the lock core is in an opening state, when a hand is pressed on the safety latch, the safety latch disengages from a positioning hole to cause the rectilinear motion of the rack bar under the function of the spring, and the mechanical lock is in an opening state. When the key is rotated clockwise by 320 DEG, the rack bar does rectilinear motion with the opposite direction, and the mechanical lock is in a completely closed state. The utility model which has the advantages of simple structure, compact structure, shapely configuration and high intensity forms a fully closed body. The utility model is a theft-proof bicycle lock which can prevent picking, prizing and smashing with good safety performance.

Description

Prize-proof bicycle lock

A kind of Antipicking bicycle lock belongs to mechanical lock, is widely used in bicycle, pedicab, trail bike antitheft.

Existing bicycle lock shell has individual opening and a slit, very easily pries open from opening or slit, dials from the iron plate of locking, and makes lock out of control.Chinese patent was announced in the Antipicking bicycle lock of number of patent application for " 87206884 " on April 13rd, 1988.It is by having the spiral fluted dead bolt, has parts such as the lock cylinder of lock core gear and lock body and forms.The lock key that turns clockwise during car, lock core gear are stirred and are had spiral fluted arc dead bolt and will lock.Because the lock mode of lock core and dead bolt becomes multiple tooth engagement locking by common some locking, the locking fastness is good, and this has improved than common bicycle lock theftproof performance.But its arc dead bolt is to have spiral fluted to make difficulty, and lock housing is only managed the employing Quenching Treatment, but still can adopt machine tool to pry open, dial from or curve dead bolt.Thereby the pick-proof of lock, the anti-security performance of pounding reduce.

The purpose of this utility model provides a kind of above-mentioned shortcoming that overcomes, anti-group of raising, pick-proof, the anti-good Antipicking bicycle lock of security performance of pounding.

The utility model is such: it is made up of lock body, tapered end, lock core, gear, tooth bar, spring, safety latch.Lock body is the real core integral body of open annular, tooth bar is a spur rack, gear is fixedly connected on lock core, in key inserts lock core, makes pellet shot from a slingshot be in opening, depress safety latch, tooth bar breaks away from safety latch, and lock core is under the effect of torque spring, and the lock core driven gear rotates, thereby tooth bar is made straight line to left movement, and lock is opened.When key clockwise rotated 320 °, lock was in complete closure state, and this moment, safety latch was positioned at the locating hole of tooth bar.

The utility model is described in detail as follows below in conjunction with accompanying drawing:

Fig. 1 is the utility model elevation;

Fig. 2 is the utility model lateral view;

Fig. 3 is that the utility model A is to view.

Shown in accompanying drawing, Antipicking bicycle lock of the present utility model is made up of lock body (1), tapered end (2), lock core (3), tooth bar (4), gear (11), safety latch (6), spring (13,14).Lock body (1) is the real core integral body by one or two block plate punching presses, the open annular that is welded.Tapered end (2) is fastened on lock body split ring one end by three countersunk not chipped rivets (3), and it is in aggregates that rivet also can same tapered end (2) die casting, and then rivets with lock body (1); Lock core (3) is installed in tapered end (2) lining; A torque spring (13) and gear (11) have been installed on the rear end face of lock core (3), and gear (11) and lock core (13) have been fastened as one by screw (13).Be provided with a spring (14) in the safety latch (6), be installed in the following orientation of tapered end (2).Tooth bar (4) is a spur rack, and handling ease is easy for installation, and intensity is good, and it and gear (11) mesh, and are installed in the translot of tapered end (2) and lock body (1) one lower end moving linearly.Spur rack (4) is to be movably linked together by lateral pin (19) by spur rack (7,8), and tooth bar (8) can be around lateral pin (19) the 90 ° of activities of turning back, and when tooth bar (8) when upwards rotating, can guarantee the continuity of the profile of tooth physical dimension of two tooth bars.When lock was opened, in order not influence safe driving, tooth bar (8) can rotate.Tooth bar (8) is provided with a locating hole (10).Tooth bar (7,8) all processes with steel plate, also can be at the rear of tooth bar, it is fully consistent with tooth bar (7,8) to add lastblock appearance and size, and do not become the steel plate (9) of tooth to combine, so, not only strengthened the intensity of tooth bar, and made gear on tooth bar, make the rectilinear motion of guiding.When key (18) inserts lock core (3), marble spring (15) pressurized, pellet shot from a slingshot (17,16) is in opening, at this moment depress safety latch (6), make the locating hole (10) on safety latch (6) the disengaging tooth bar (8), under the effect of torque spring (13), gear (11) rotates simultaneously with lock core (3), at this moment tooth bar (4) is moving linearly left, locks into opening.When key clockwise rotated 320 °, gear (11) was to counter-rotation, thereby drove tooth bar (4) moving linearly to the right, and when safety latch (6) was arranged in the locating hole (10) of tooth bar (8), lock was in complete closure state.During closed the lock, the direct to the right apical tooth bar (4) of also available hand closes locking.

This lock construction is simple, compact, production technology is good, and outer formation Full-closed integral is handsome in appearance. Because lock body is real core integral body, intensity is good, and it has solved existing bicycle lock and has easily been pried open and curve dead bolt, pulls out lockhole, makes the ineffective problem of lock, thus it be a kind ofly anti-ly dial, pick-proof, the anti-good comparatively desirable anti-theft bicycle lock of security performance of pounding.

Claims (5)

1, a kind of Antipicking bicycle lock is characterized in that this lock is made up of lock body (1), tapered end (2), lock core (3), tooth bar (4), gear (11), safety latch (6), spring (13,14), and its lock body (1) is the real core integral body of open annular; Tapered end (2) is fastened on lock body split ring one end by countersunk not chipped rivet (3), and a torque spring (13) and gear (11) are installed on the rear end of lock core (3), and by screw (12) gear (11) and lock core (3) is fastened as one; Safety latch (6) is located at tapered end (2) below; Tooth bar (4) is a spur rack, and it and gear (11) mesh, and are installed in the translot of tapered end (2) and lock body (1) lower end.

2, Antipicking bicycle lock according to claim 1 is characterized in that lock body (1) is the real core integral body that is welded into open annular by one or two block plate punching presses.

3, Antipicking bicycle lock according to claim 1, it is characterized in that tooth bar (4) is to be movably linked together by lateral pin (19) by spur rack (7,8), tooth bar (8) can be around lateral pin (19) the 90 ° of activities of turning back, when tooth bar (8) when upwards rotating, guarantee the continuity of the profile of tooth physical dimension of two tooth bars, do not have locating hole (10) on the tooth bar (8).

4, according to claim 1,3 described Antipicking bicycle locks, it is characterized in that tooth bar (7,8) all processes with steel plate, also can add the complete steel plate (9) consistent with tooth bar (7,8) and undressed tooth of lastblock appearance and size at the rear of tooth bar and combine.

5, Antipicking bicycle lock according to claim 1 is characterized in that being provided with in the safety latch (6) spring (14), and fashionable when locking, safety latch (6) is positioned at locating hole (10).

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