CN2301513Y

CN2301513Y - Single and double door rotary bolt type anti-theft lock

Info

Publication number: CN2301513Y
Application number: CN 95241092
Authority: CN
Inventors: 王学华
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-17
Filing date: 1995-12-17
Publication date: 1998-12-23
Anticipated expiration: 2005-12-17

Abstract

A single or double door rotary bolt type anti-theft lock is composed of a main lock with a bolt in it, a rivet-shaped hook at front end of bolt, a hole at middle and back end of bolt, a handle ball axle passing through said hole, a bottom plate, a lock shell, a cover plate, and a tension spring at back end of bolt for restoring bolt. The main lock is also provided with a lock hook, the upper end of the lock hook is in a hook shape, the middle part of the lock hook is provided with a hole, the lock hook is sleeved on a pin shaft on the bottom plate, and a spring for resetting the lock hook, the lock core and the shifting block is arranged between the right side of the upper part of the lock hook and the wall of the lock shell. An arc-shaped groove is arranged on the bottom plate in the auxiliary lock. When the lock is closed, the rivet-shaped hook head at the front end of the latch bolt is screwed into the hole-shaped groove of the auxiliary lock bottom plate along with the latch bolt, and meanwhile, the hook at the upper end of the latch bolt hooks the notch at the rear end of the latch bolt, so that the lock is very firm.

Description

Single, double door rotating latch type theftproof lock

A kind of theftproof lock that is used for single open-door, double door and any structure form door.This lock is made up of the main lock and the secondary lock of common form, and being equipped with one in main lock can be to the door bolt of pair lock rotation, when shutting and secondary lock bolt firmly and lock.

A kind of inclined-plane impact type door lock commonly used at present after door is closed, in the seam between available metal sheet or plastic sheet inserting door and the doorframe, is opened lock.If adopt inclined-plane impact type door lock or this lock increase a rectangle fasten with a bolt or latch be used for two-door, then need earlier Yishanmen to be shut, to be installed in the slotting Xiao Kongli that upper and lower slotting Xiao on the door inserts upper door frame and lower door frame then, and again other Yishanmen be closed just and can be locked, cumbersome.The ball catch that another is commonly used except that above-mentioned shortcoming, if be installed on the timber, be dug out a bigger hole on the frame of door leaf, the intensity of door leaf is reduced greatly.

The purpose of this utility model provides a kind of single, double door rotating latch type theftproof lock, and this lock has solved the existing shortcoming of above-mentioned several lock, plays more antitheft effect.

This single, double door rotating latch type theftproof lock, form by main lock and secondary lock, adorn a lock bolt in main lock inside, the front end on the lock bolt is adorned a rivet-like gib head, and there is a hole at the inclined to one side rear portion of lock bolt, the handle ball journal passes this hole and lock bolt is fixed as one, this axle also passes base plate, lock housing and cover plate, and a breach is arranged above the lock bolt rear end, is arc surface below, also bolt one extension spring of lock bolt rear end, extension spring other end bolt is in the upper left corner of base plate.A latch hook is adorned on the right in main lock, and the upper end is hook-shaped, and there is a hole at the latch hook middle part, is enclosed within on Xiao's axle on the base plate, adorns a spring between latch hook upper right and the lock housing wall, and latch hook on the left of the portion and right side, bottom on the upper side is plane.Adorn a drawback lock core in the position on the lower side in main lock housing outside, adorn an external-open lock core in centre position, main lock housing cover plate outside, shifting block is housed respectively on two lock cores,, latch hook is all abutted against on the side angle of two shifting blocks on two planes on portion left side and right side, bottom on the upper side because of the latch hook upper right is subjected to the power of spring.On the base plate in the pair lock, have one with main to lock the handle ball journal be the arc groove at center.

Another advantage of this lock is without key when shutting, continuous rotation just can lock in one to three week after rectangle door bolt of telling about previously or hook bolt needed key to insert lock core, like this lock core and key unnecessary wearing and tearing have been increased, and expend time in, only need that the handle ball journal is rotated about 90 degree and get final product and originally be locked in when shutting.

When shutting, about 90 degree of turning handle ball journal, making lock bolt is horizontal level, simultaneously:

(1) the rivet-like gib head of lock bolt front end screws in the arc groove of secondary bottom-locking plate with lock bolt;

(2) be subjected to the power of spring because of the latch hook upper right, make the hook of latch hook upper end hook the breach of lock bolt rear end;

(3) be subjected to the power of spring again because of the latch hook upper right, inside and outside core and two shifting blocks of unblanking are resetted.

When unblanking, to open or the external-open lock core in the key insertion, key, latch hook is stirred at the shifting block side angle that utilization is contained on the lock core, the hook of latch hook upper end and the breach of lock bolt rear end are thrown off, simultaneously, be subjected to the power of extension spring because of the lock bolt rear end, the rivet-like gib head is resetted back in the main lock with lock bolt, and main lock separates with the pair lock.

The utility model is described in further detail below in conjunction with accompanying drawing.Accompanying drawing 1 is the structure chart after shutting, and accompanying drawing 2 is lock bolt sectional views.

Part referring to accompanying drawing 1 and accompanying drawing 2:(the right is main lock, and the part on the left side is secondary lock)

Lock bolt (1) is equipped with on top in main lock, and the front end on the lock bolt (1) is adorned a rivet-like gib head (13), and it is in the arc groove (11) at center with main lock handle ball journal (2) that this gib head can screw in secondary bottom-locking plate (12) with lock bolt (1).Lock bolt (1) has a hole in the rear portion partially, and handle ball journal (2) passes this hole and lock bolt (1) is fixed as one, and this axle also passes base plate (4), lock housing and cover plate, and can rotate in the hole of base plate (4), lock housing and cover plate.Lock bolt (1) has a breach above the rear end, be the arc face below, and there is an extension spring (3) lock bolt (1) rear end also bolt, and other end bolt is in the upper left corner of base plate (4).A latch hook (5) also is equipped with on the right in main lock, latch hook (5) upper end is hook-shaped, there is a borehole jack at the middle part on Xiao's axle (8) on the base plate (4), adorns a spring (7) between latch hook (5) upper right and the lock housing wall, and latch hook (5) on the left of the portion and right side, bottom on the upper side is plane.Adorn a drawback lock core in the position on the lower side in main lock housing outside, an external-open lock core (10) is adorned in centre position in main lock cap outside, shifting block (9) and the shifting block (6) that can stir latch hook (5) are housed respectively on two lock cores, because of latch hook (5) upper right is subjected to the power of spring (7), latch hook (5) is all abutted against on the side angle of shifting block (9) and shifting block (6) on two planes on portion left side and right side, bottom on the upper side.On the base plate (12) in the pair lock, have one with main to lock handle ball journal (2) be the arc groove (11) at center.

Claims

A kind of list, two-door rotating latch type theftproof lock, lock bolt (1) is equipped with on top in main lock, the right is equipped with latch hook (5) and is adorned a drawback lock core (10) in the position on the lower side in front, main lock housing outside, an external-open lock core is adorned in centre position in the cover plate outside, shifting block (9) and (6) respectively are housed on two lock cores, it is characterized in that: the front end on the lock bolt (1) is adorned a rivet-like gib head (13), lock bolt (1) has a hole in the rear portion partially, handle ball journal (2) passes this hole and base plate (4), lock housing, cover plate, there is a breach lock bolt (1) rear end and makes its extension spring that resets (3), in the main lock latch hook (5) is housed also, the upper end is hook-shaped, there is a hole at latch hook (5) middle part, be enclosed within on Xiao's axle (8) on the base plate (4), adorn a spring (7) between latch hook (5) upper right and the lock housing wall, latch hook (5) is the portion left side on the upper side, the right side, bottom is the plane, two planes all abut against on lock housing and the cover plate in, on two shifting blocks (9) on the external-open lock core and the side angle of (6), on the base plate (12) in the pair lock, have one with main to lock handle ball journal (2) be the arc groove (11) at center.