CN200985668Y

CN200985668Y - Rotate proof type check lock

Info

Publication number: CN200985668Y
Application number: CN 200620140738
Authority: CN
Inventors: 张从军
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-04
Filing date: 2006-12-04
Publication date: 2007-12-05
Anticipated expiration: 2016-12-04

Abstract

A anti-rotating safety lock relates to a night lock, in particular to a anti-rotating safety lock which can effectively prevent that the lock can be unlocked without a key as the lock core rotates under external power, comprising the lock core, a cylindrical lock bile with a key hole inside arranged in the lock core, a screw bolt and a splint fixing the lock core on a door, a opening rod which is connected with the lock bile and can drive the lock tongue to realize the opening and closing of the door, and a marble with a spring arranged in the radial hole between the lock core and the lock bile. The utility model has the characteristics of that the lock core has a noncircular contour outline, so when a screw driver is inserted in the key hole or the external shell edge of the lock core out of the door is clipped and is forced to rotate, the lock core of the utility model anti-rotating safety lock is still fixed and stationary, and at the same time the lock bile can not be rotated as no key is inserted, so the door is safely locked. The utility model also adds the thickness of the splint to over 2.2 mm, furthermore reinforcing the resisting force of the night lock to the external torque and being used more safely and more reliably.

Description

Anti-rotatable safety lock

Technical field

The utility model relates to a kind of cylinder lock, and particularly a kind of can effectively preventing makes lock need not the anti-rotatable safety lock that promptly is opened with key because of lock core rotates under external force.

Background technology

Traditional door that is used for is the cylinder lock of one with the doorframe lock, its structure can be seen from Fig. 3, it contain one can make it be contained in lock core 1 on the door, columniform lock gall that is installed in the interior band keyhole 2a in the lock core 2, two can make lock core be fixed on screw rod 3 and clamping plate 4 on the door, one be connected with lock gall 2 and can drive the all-or-nothing piece 5 that dead bolt (being represented among the figure) realization is opened the door or closed the door, and the pellet shot from a slingshot of the band spring of installing in the radial hole between lock core and lock gall (spring and hoodle are all represented).When key inserted keyhole 2a, the one group of tooth that is had on the key promptly promoted each pellet shot from a slingshot successively, followed key and rotated together so that lock gall is thrown off lock core, even all-or-nothing piece 5 dead bolts that are fixed as one with lock gall withdraw from from the endoporus of doorframe, door is opened.This traditional cylinder lock also has following shortcoming: 1) its assembly such as lock core and screw rod etc. can occur becoming flexible in making for a long time because of corrosion, loosening danger below then will occurring appears as lock core: because of the shell of this lock core cylindrical, rotate so under external moment loading, cause, and this rotation also still is solidified as a whole with lock gall because of no key in the keyhole makes lock core, therefore the rotation of lock core drives lock gall immediately, makes that dead bolt withdraws from, door is opened thereby be fixed on all-or-nothing piece on the lock gall from the lockhole of doorframe.This shows, when the shell of lock core is cylindrical, as long as insert in the keyhole of lock gall with the steel device of a good toughness and rotate by force and can open door, so its safety is poor; 2) if traditional cylinder lock is used on the wooden door, then to rotate possibility bigger because of the compressibilty die lock core of timber, though in the accessory of lock core clamping plate are arranged, because of its thickness 1.2 millimeter, too little only to the resistance that rotates; If traditional used for spring lock is in iron gate, and clamping plate are welded on the iron gate, and then when lock core was rotated by force by external force, the screw rod on it can form one pulling force to clamping plate, nut on the screw rod just splits away off easily, fixedly being disengaged of lock core, and this is with the easier door of opening.

In sum, traditional cylinder lock because of the shell shape of its lock core be cylindrical its reliability is declined to a great extent, use very dangerous.

Summary of the invention

The utility model is to overcome existing shortcoming in the above-mentioned prior art, provides a kind of can preventing can rotate the anti-rotatable safety lock that need not to open with key door under external force because of lock core.

The utility model is prevented rotatable safety lock, it contain one can make it be contained in lock core on the door, one be installed in the interior band keyhole in the lock core columniform lock gall, can make lock core be fixed on screw rod and clamping plate on the door, one be connected with lock gall and can drive the all-or-nothing piece that the dead bolt realization is opened the door or closed the door, and the pellet shot from a slingshot of the band spring of installing in the radial hole between lock core and lock gall, it is characterized in that: the outline of lock core is non-circular contoured surface.For example oval-shaped contoured surface, or square contour face, regular hexagon contoured surface etc., but preferably foursquare contoured surface.

The utility model is prevented rotatable safety lock, clamping plate thickness 〉=2.2mm that it had.

The beneficial effects of the utility model: 1) the utility model by with the shell of lock core by traditional cylindrical changing into after the non-cylindrical, even having the burglar that screwdriver is inserted in the keyhole rotates by force, or clamp the shell edge that lock core exposes and rotate by force on door, this non-cylindrical lock core maintains static at Men Shangjun, and this moment lock gall also because of keyless insertion can not rotate, the door close very safe; 2) the utility model also is increased to the thickness of clamping plate 2.2mm by traditional 1.2mm or more than the 2.2mm, has more strengthened the resistance of cylinder of spring lock to external moment, guarantees the security reliability of closing the door.

Description of drawings

Fig. 1 is the structural perspective of the anti-rotatable safety lock of the utility model;

Fig. 2 is the front view of the anti-rotatable safety lock of the utility model when installing on door;

Fig. 3 is the structural perspective of traditional cylinder lock.

Label declaration among the figure: 1-lock core; The 2-lock gall; The 2a-keyhole; The 3-screw rod; The 4-clamping plate; The 5-all-or-nothing piece; The 6-door; The thickness of B-clamping plate.

The specific embodiment

The structure of embodiment 1, the anti-rotatable safety lock of present embodiment can be seen from Fig. 1 and Fig. 2, it contain one can make it be contained in lock core 1 on the door, columniform lock gall that is installed in the interior band keyhole 2a in the lock core 2, two can make lock core be fixed on screw rod 3 and clamping plate 4 on the door 6, one be connected with lock gall 2 and can drive the all-or-nothing piece 5 that dead bolt (being represented among the figure) realization is opened the door or closed the door, and the pellet shot from a slingshot (being represented among the figure) of the band spring of installing in the radial hole between lock core and lock gall.In the present embodiment, the appearance profile of lock core is non-circular contoured surface; That is to say that lock core 1 is being non-circular contoured surface perpendicular to the appearance profile face on the direction of keyhole 2a place.This appearance profile can be oval or (only expressing square appearance profile in the drawings) such as square or regular hexagons, so that lock core is fixed in the lockhole on the door with the shell sleeve of its non-cylindrical, thereby can not rotate under external force.

Present embodiment with the appearance profile face of lock core by traditional cylindrical change over non-circular after, if any rotating by force in the steel device insertion keyhole 2a of burglar with the good toughness of screwdriver and so on, or clamp the shell edge that lock core exposes and rotate by force on door, then the sleeve shell that is fixed on the lock core non-cylindrical in the last lockhole can not rotate; Having only when owner inserts keyhole 2a with key and can open door because of lock gall rotates just relative to lock core, is not open door and there is not the key insertion.Therefore, present embodiment is prevented rotatable safety lock after installing on the door, but not only has the characteristics of traditional cylinder lock Convenient switch door, is shutting behind the door but also have, want that with the external force rotational lock core without key be the characteristics of not opening door, so more traditional cylinder lock more insures, safety.

The structure of embodiment 2, the anti-rotatable safety lock of present embodiment still can be seen from Fig. 1 and Fig. 2, the non-circular appearance profile of lock core is square contoured surface, so that lock core is fixed in the lockhole on the door with the appearance profile cylinder sleeve that is square, thereby make lock core anti-rotation effect, and convenient processing and manufacture with better.Lock core is can be identical with the wall thickness on the circular contour face in traditional cylinder lock perpendicular to the wall thickness of the square contour face on the direction of keyhole 2a place, to guarantee its due intensity, and when door lock is installed, the lockhole size on the door and the appearance profile size of lock core are complementary, are fastened on to guarantee lock core that door is gone up, no any becoming flexible.

The thickness B of the structure of the anti-rotatable safety lock of embodiment 3, present embodiment and embodiment 1 or embodiment 2 different is its clamping plate 4 is increased to more than the 2.2mm by traditional 1.2mm, that is B 〉=2.2mm; The big I of B value is selected according to the size of lock body.From and strengthened the resistivity of cylinder of spring lock to external moment, further strengthen being locked in security reliability at closing time.

The lock core 1 of the various embodiments described above, keyhole 2a on the columniform lock gall 2 in it all can adopt criss-cross keyhole, and the pellet shot from a slingshot of the band spring in lock core and the lock gall is complementary with it, thereby reduces the mutual opening rate of lock core, the security reliability of raising cylinder lock by having increased with the difficulty of key turns lock gall.

Claims

1, a kind of anti-rotatable safety lock, it contain one can make it be contained in lock core (1) on the door, one be installed in the interior band keyhole (2a) in the lock core columniform lock gall (2), can make lock core be fixed on screw rod (3) on the door and clamping plate (4), one be connected with lock gall (2) and can drive the all-or-nothing piece (5) that the dead bolt realization is opened the door or closed the door, and the pellet shot from a slingshot of the band spring of installing in the radial hole between lock core and lock gall, it is characterized in that: the outline of lock core (1) is non-circular contoured surface.

2, anti-rotatable safety lock according to claim 1, it is characterized in that: the non-circular contoured surface of said lock core (1) is the square contour face.

3, anti-rotatable safety lock according to claim 1 and 2 is characterized in that: thickness (the B) 〉=2.2mm of the clamping plate (4) in the said lock core (1).