CN2277440Y

CN2277440Y - Screw cylinder lock

Info

Publication number: CN2277440Y
Application number: CN 96230720
Authority: CN
Inventors: 官大海
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-13
Filing date: 1996-09-13
Publication date: 1998-04-01
Anticipated expiration: 2006-09-13

Abstract

The utility model relates to a threaded cylinder drawback lock which is characterized in that the head part of a lock bolt is made into a threaded shaft structure. A threaded support seat is arranged in a lock casing and is matched with the lock casing for installation. Mutually engaged bevel gears are respectively arranged at the tail end of a lock core shaft and the tail part of the lock bolt. A lock catch body with an internal thread is arranged in a lock catch box. A key is inserted for rotating a lock core. Drive pairs of the bevel gears can cause the lock bolt to rotate forward to be screwed in the internal thread of the lock catch body. The utility model can ensure that the lock bolt can not be prized by using any tommy bars because the utility model is provided with a threaded lock bolt assembly. The utility model has the advantages of artful structure, easy manufacture, obviously enhanced anti-prizing performance and low cost which is equal to the cost of the existing safe-guard door lock, and is suitable for being used as various door locks and special-purpose locks.

Description

Screw cylinder lock

The utility model relates to a kind of mechanical safety lock manufacturing technology, particularly a kind of pick-proof Screw cylinder lock that uses on all kinds of security doors or other the special anti-theft devices that is installed in.

Existing all kinds of safe-guard door lock has mechanical code lock, and cylinder lock (or spring padlock) is single.Two tongue safety locks and electronic cipher alarming lock etc. are multifarious, above-mentioned these locksets are through constantly improving for many years, technical performance and function of use are greatly improved, the thief desires to want to unblank with homemade master key very difficult, sorry is exactly existing lockset pick-proof poor performance, no matter for example be single.Two tongues even three tongue anti-theft billiards door locks (or mortise lock) generally are by the lock housing body, lock cylinder, the tapered end that cooperates with lock core, dead bolt (or claiming locking bolt) and the keeper compositions such as (being buckle box of lock tongue) that cooperates with dead bolt (locking bolt).During use, key is inserted lock core groove, rotating key, lock core tail end shift fork can shooting the lock-bolt advance or retreat (afterwards contracting) and lock or unlocking action to finish.Because dead bolt (locking bolt) smooth surface, the thief is as long as hold in both hands with sled and to pry open lock housing body or keeper, just can allow dead bolt locking bolt release lock button box easily, makes to open to allow its pilferage go smoothly.

The purpose of this utility model provides the well behaved Screw cylinder lock of a kind of pick-proof, and it can be used as all kinds of safe-guard door locks and anti-theft device application (as using) under special occasions in safety cabinet.

The utility model is to adopt following technical scheme to realize: it is to improve to form on the basis of common many tongues cylinder lock.Comprise the lock housing body, lock cylinder (axle), be used to assemble the tapered end of lock core, locking bolt, oblique dead bolt (tiltedly tongue) and (cooperating) keeper compositions such as (bodies) with the skew bolt lock bolt, it is characterized in that described locking bolt head is that system is the thread spindle structure, in the lock housing body, set up the thread support that has internal thread and be mated installation, at threaded shaft locking bolt rear portion and lock core shaft's tail end each intermeshing conical gear (being bevel gear) fixedly is housed, in keeper, also have additional the locked body that has internal thread that can cooperate with locking bolt head end thread spindle, constitute the screw fastening bolt assembly with this, insert key rotation lock core (axle), can locking bolt be rotated forward stretch out and be screwed in the internal thread of (screw-in) locked body by the Bevel Gear Drive pair.

Below in conjunction with accompanying drawing embodiment concrete structure of the present utility model and operating principle are described in further detail.

Fig. 1 is a kind of assembly structure schematic diagram of the present utility model.

Fig. 2 is the utility model is two groups of screw fastening bolt assemblies installing side by side up and down in the lock housing body a structural representation.

Wherein: the 1-tapered end, 2-lock cylinder (axle), the 3-conical gear (or claim bevel gear, shape is contained in lock core shaft's tail end), 4-lock housing body (lock body), 5-shift fork (or claiming push rod), near 6-conical gear (being contained in the threaded locking bolt afterbody), the 7-key, 8-threaded shaft locking bolt (dead bolt), the threaded shank portion of 9-locking bolt, 10-thread support (cooperating) with the threaded shank portion of locking bolt, 11-locked body (being provided with internal thread), the 12-keeper, the 13-security door, the 14-doorframe, the oblique tongue of 15-, the 16-oblique tongue rod, the 17-stage clip, the 18-driving lever, 19-moveable hinge fulcrum, the 20-alignment pin, the oblique tongue handle of 21-(draw ring).

With reference to accompanying drawing as can be known, the utility model also has following technical characterictic when specific design is made:

One, in the lock housing body, can make and be up and down two groups of screw fastening bolt assemblies installing side by side, wherein the threaded shaft locking bolt respectively be installed in the about both sides of lock housing body lock core and tapered end separately and cooperate installation.So just can as two tongue safe-guard door locks the same, the user all can conveniently locked or unblank (see figure 2) in the door outdoors.

Two, the utility model uses for convenience, also can an oblique tongue that can work independently be installed in the lock housing body as the safe-guard door lock of prior art, promptly an oblique tongue that can work independently is installed in the centre that is positioned at two groups of screw fastening bolt assemblies installing side by side up and down, being provided with up and down two near the tail end of this oblique tongue rod can be around the driving lever of wring abut swing separately, simultaneously respectively being provided with a shift fork (or claiming push rod) at the tail end of two threaded shaft locking bolts up and down cooperates with these two driving levers respectively, when unblanking, when contracting behind the locking bolt to the last step position, the shift fork of its tail end will promote driving lever and swing backward, and then drive oblique tongue rod compressing stage clip, and allow and make a unlatching in the oblique tongue retraction lock housing body.

Compared with prior art, the utility model is made the structure that is threaded axle with former bolt lock bolt head, is furnished with again The matching component such as conical gear and tapped locked body during use, inserts lock core hole slot rotating key with key, Can be by the secondary rotating band thread spindle of Bevel Gear Drive locking bolt forward in the internal thread of precession spiro lock button or backward Screw out (withdrawing from) locked body, lock or unlocking action in order to finish. It can guarantee also can't prize locking bolt with any crow bar, Thereby can prevent effectively that the thief from ruining lock crime (unless doorframe is prized) with crow bar, the dexterous letter of the utility model structure Single, handling ease, its manufacturing cost is suitable with old type safe-guard door lock, but its pick-proof performance obviously strengthens applicable work All kinds of building door locks and specific use lock locksets such as (safety cabinets) use.

Claims

1, a kind of Screw cylinder lock, it comprises the lock housing body, lock cylinder, be used to assemble the tapered end of lock core, locking bolt, tiltedly tongue and keeper are formed, it is characterized in that described locking bolt head system is the thread spindle structure, in the lock housing body, set up the thread support that has internal thread and be mated installation, each fixedly is equipped with intermeshing conical gear at threaded shaft locking bolt rear portion and lock core shaft's tail end, in keeper, also have additional the locked body that has internal thread that can cooperate with locking bolt head end thread spindle, constitute the screw fastening bolt assembly with this, insert key rotation lock core, can by the Bevel Gear Drive pair locking bolt is rotated forward stretch out and the internal thread of spiro lock button in.

2, Screw cylinder lock according to claim 1, it is characterized in that in the lock housing body, can making and be up and down two groups of screw fastening bolt assemblies installing side by side, wherein the threaded shaft locking bolt respectively be installed in the about both sides of lock housing body lock core and tapered end separately and cooperate installation.

3, Screw cylinder lock according to claim 1 and 2, it is characterized in that an oblique tongue that can work independently being installed in the centre that is positioned at two groups of screw fastening bolt assemblies installing side by side up and down, being provided with up and down two near the tail end of this oblique tongue rod can be around the driving lever of hinged spot wobble separately, respectively being provided with a shift fork at the tail end of two threaded shaft locking bolts up and down cooperates with these two driving levers respectively, when unblanking, the shift fork of locking bolt tail end can promote driving lever and swing backward, and then drives in the oblique tongue retraction lock housing body and make a unlatching.