CN2856335Y - Antitheft lock - Google Patents

Abstract

The utility model discloses an anti-theft lock comprising a lock sheath, a lock core arranged in the lock sheath and having a lock tongue, a U-shaped lock rod with one end hinged to the lock sheath, a lock tongue insertion hole arranged in the other end of the U-shaped lock rod and cooperating with the lock tongue, and a lock rod insertion hole arranged at a position corresponding to the lock tongue on the lock sheath lower wall, characterized in that a rectangular hole is arranged at a position corresponding to the lock core key hole on the lock sheath side wall. Because the lock core is hidden in the lock sheath and the rectangular hole is arranged at a position corresponding to the lock core key hole on the lock sheath side wall, the lock core can be prevented from being destroyed by a thief with an electric drill; when unlocking, a key with elbow handle can be inserted into the lock core key hole from the rectangular hole and moved upwards to unlock the lock. The utility model is very convenient to use.

Description

Theftproof lock

Technical field

The utility model relates to theftproof lock.

Background technology

Anti-theft lock structure is varied at present, be useful on the theftproof lock of vehicles such as motorcycle, electric bicycle, bicycle, also be useful on the padlock of barndoor gate etc., its structure is for to be cemented in lock body in the lock tube, the key hole of lock body is arranged on the sidewall of lock tube, one end and the lock tube of a U-shape sword iron are hinged, and the other end inserts in the lock tube and with lock body and locks together.When unblanking, key after the rotation, separates lock body, thereby realizes unblanking purpose in the outside insertion of lock tube lock body key hole with an end of U-shape sword iron.The deficiency that the theftproof lock of this structure exists is that the lock core key jack is exposed to the lock tube outside, and the robber can destroy lock core easily by electric drill.And key hole also is plugged easily and influences the normal use of lockset.

The utility model content

The purpose of this utility model is to provide a kind of lock core key jack to be hidden in the interior theftproof lock of lock tube.

For achieving the above object, the utility model can be taked following technical proposals:

Theftproof lock described in the utility model, it comprises lock tube, be arranged on the lock core that has dead bolt in the described lock tube, the U-shape sword iron that one end and described lock tube are hinged, with the dead bolt jack that matches with described dead bolt that is opened in the described U-shape sword iron other end, and be opened on the lock tube diapire corresponding to the locking bar jack at latch bolt position place, on the lock tube sidewall, offer rectangular opening corresponding to lock core key jack position place.

Described rectangular opening is a strip, also can be square.

Advantage of the present utility model is lock core is hidden in described the overlapping, and offers the rectangle slotted eye corresponding to lock core key jack position place on the lock tube sidewall, thereby has prevented the purpose that the robber destroys lock core by electric drill; When needs are unblanked, will have the key that turns handle and in rectangular opening inserts lock core keyhole, upwards move and lockset can be opened, very convenient.

Description of drawings

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

The specific embodiment

As shown in the figure, theftproof lock described in the utility model, it comprises lock tube 1, be arranged on the lock core that has dead bolt 23 in the described lock tube 1, the U-shape sword iron 4 that one end and described lock tube 1 are hinged, with the dead bolt jack 5 that matches with described dead bolt 2 that is opened in described U-shape sword iron 4 other ends, and be opened on lock tube 1 diapire corresponding to the locking bar jack 6 of dead bolt 2 positions, the key hole position corresponding to lock core 3 on lock tube 1 sidewall offers bar hole 7.

Claims (3)

1, a kind of theftproof lock, it comprises lock tube (1), be arranged on the lock core that has dead bolt (2) (3) in the described lock tube (1), the U-shape sword iron (4) that one end and described lock tube (1) are hinged, with the dead bolt jack (5) that matches with described dead bolt (2) that is opened in described U-shape sword iron (4) other end, and be opened on lock tube (1) diapire corresponding to the locking bar jack (6) of dead bolt (2) position, it is characterized in that: on lock tube (1) sidewall, offer rectangular opening (7) corresponding to lock core (3) key hole position.

2, theftproof lock according to claim 1 is characterized in that: described rectangular opening (7) is a strip.

3, theftproof lock according to claim 1 is characterized in that: described rectangular opening (7) is for square.

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