CN201100014Y - Improved anti-theft lock - Google Patents

Abstract

The utility model discloses a modified anti-theft lockset which comprises a U-shaped lock frame and a lock pin inserted in the U-shaped lock frame. Two ends of the U-shaped lock frame are respectively equipped with a shaft sleeve and a lock sleeve for the lock pin to insert in, the lock sleeve is internally equipped with a lock body, a radial lock snap position is opened on the lock pin, and a bolt of the lock body is snapped in the lock snap position, thereby locking the U-shaped lock frame and the lock pin. The lock body of the utility model is arranged inside the lock sleeve, the lock pin is in inserted connection in the lock sleeve, and the bolt is radially snapped in the lock pin, thereby locking the U-shaped lock frame and the lock pin. Therefore, the bolt locks the lock pin, while the lock pin is prevented from being taken off through breaking the lock pin, and thereby the modified anti-theft lockset has better anti-theft performance.

Description

Improved lock

Technical field

The utility model relates to a kind of lock, particularly a kind of improved U type theftproof lock.

Background technology

Existing U type theftproof lock generally comprises U-shape lock frame, lock tube, axle sleeve and lock pin, and lock tube and axle sleeve are fixed on the two ends of U-shape lock frame, and lock pin can be plugged in lock tube and the axle sleeve.Lock body is arranged in the lock tube, with lock pin to locking.Because lock body and lock pin horizontal lock, if screwdriver or other hard things are inserted tapered end and powerful rotation tapered end by force by artificial mode, will cause in the tapered end lock pearl impaired, come off and cause tapered end to go to pot, so just can rotate tapered end, open theftproof lock thereby reached illegal artificial mode.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of dead bolt locking jam lock pin, improved lock simple in structure, that locking is safe.

A kind of improved lock of the present utility model comprises the U-shape lock frame and is plugged in the lock pin of U-shape lock frame, and U-shape lock frame two ends are respectively arranged with axle sleeve and the lock tube that inserts for lock pin, it is characterized in that: a lock body is installed in the described lock tube; Described lock pin offers pintle hook lock position radially, thereby the dead bolt of lock body snaps in pintle hook lock position U-shape lock frame and lock pin locking.

Described dead bolt connects a latch, and latch is provided with groove and can inserts the bayonet lock of pintle hook lock position with the locking lock pin, and dead bolt axially inserts groove and drives bayonet lock and inserts or withdraw from the pintle hook lock position.

Described latch external surface is provided with screw thread, and lock tube is provided with latch screws and connects screw thread.

Described lock pin is provided with at pintle hook lock position side that can to block the card that axle sleeve prevents that lock pin from dropping out when unblanking protruding, offers on the axle sleeve and accepts the protruding receiving channel of this card.

Described lock pin is plugged in end in the axle sleeve and is provided with prevents that the locator card that lock pin rotates is protruding in axle sleeve.

Lock body of the present utility model is located in the lock tube, lock pin is plugged in the lock tube, thereby dead bolt radially snaps in and makes U-shape lock frame and lock pin locking in the lock pin, dead bolt can prevent to take out lock pin by destroying lock body lock pearl in the locking lock pin like this, therefore, the utlity model has better anti-theft capability.

Description of drawings

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

Fig. 2 is the decomposing schematic representation of lock body and latch;

Fig. 3 is the structural representation of lock pin.

The specific embodiment

Shown in Fig. 1,3, the utility model comprises U-shape lock frame 1 and is plugged in the lock pin 2 of U-shape lock frame 1, U-shape lock frame 1 two ends are respectively arranged with axle sleeve 3 and the lock tube 4 that inserts for lock pin 2, establish a cavity 42 in the lock tube 4, one lock body 5 is installed in the cavity, and lock body 5 can move in cavity so that lock body 5 lockables or leave lock pin 2.Offer pintle hook lock position 21 radially on the lock pin 2, promptly the side of lock pin 2 cylinders is located in pintle hook lock position 21, and therefore, thereby the dead bolt 51 of lock body 5 can radially snap in pintle hook lock position 21 U-shape lock framves 1 and lock pin 2 lockings, makes U-shape lock frame 1 and lock pin 2 lockings.

As Fig. 2, dead bolt 51 connects a latch 52, and latch 52 is provided with groove 53 and can inserts the bayonet lock 54 of pintle hook lock position 21 with the locking lock pin, and dead bolt 51 axial insertion grooves 53 and rotating drive bayonet lock 54 insert or withdraw from pintle hook lock position 21, thereby can lock or unblank.Latch 52 external surfaces are provided with screw thread, and cavity 42 inner surfaces are provided with latch 52 screws and connect screw thread.When unblanking, by key 6 dead bolt 51 is inserted groove 53 fully, key 6 drives bayonet lock 54 and recesses pintle hook lock position 21 when lock body 5 retreats.When locking, key 6, the screw thread that connects in the screw thread on the latch 52 and the lock tube screws and advances, and promote bayonet lock 54 and insert pintle hook lock positions 21, when bayonet lock 54 inserts pintle hook lock position 21 fully, U-shape lock frame 1 locking lock pin 2.

Lock pin 2 can not break away from U-shape lock frame 1 when unblanking in order to make, lock pin 2 is provided with the card that can block axle sleeve 3 protruding 22 at pintle hook lock position 21 outboard ends, block protruding 22 and can prevent that lock pin 2 from dropping out axle sleeve 3 when unblanking, the receiving channel 31 of accepting card protruding 22 is set on the axle sleeve 3, the end of lock pin 2 can enter in the axle sleeve 3 when unblanking like this, in order to avoid influence the A/F of U-shape lock frame 1.

The locator card that end on the lock pin 2 in being plugged in axle sleeve is provided with is protruding 23, and locator card protruding 23 rotates axle sleeve 3 in when cooperating 2 lockings of jam lock pin with axle sleeve 3, to prevent the being unblanked lifting anti-theft feature by force under lock-out state.

Claims (5)

1. improved lock comprises the U-shape lock frame and is plugged in the lock pin of U-shape lock frame that U-shape lock frame two ends are respectively arranged with axle sleeve and the lock tube that inserts for lock pin, it is characterized in that: a lock body is installed in the described lock tube; Described lock pin offers pintle hook lock position radially, thereby the dead bolt of lock body snaps in pintle hook lock position U-shape lock frame and lock pin locking.

2. a kind of improved lock according to claim 1, it is characterized in that: described dead bolt connects a latch, latch is provided with groove and can inserts the bayonet lock of pintle hook lock position with the locking lock pin, and dead bolt axially inserts groove and drives bayonet lock and inserts or withdraw from the pintle hook lock position.

3. a kind of improved lock according to claim 2 is characterized in that: described latch external surface is provided with screw thread, and lock tube is provided with latch screws and connects screw thread.

4. a kind of improved lock according to claim 1 is characterized in that: described lock pin is provided with at pintle hook lock position side that can to block the card that axle sleeve prevents that lock pin from dropping out when unblanking protruding, offers on the axle sleeve and accepts the protruding receiving channel of this card.

5. a kind of improved lock according to claim 1 is characterized in that: described lock pin is plugged in end in the axle sleeve and is provided with prevents that the locator card that lock pin rotates is protruding in axle sleeve.

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