CN2256451Y - Double side anti-pry spring lock - Google Patents

Abstract

The utility model discloses a double side anti-pry spring lock which is composed of a lock body, a lock core, circular rings, spacing screws, marbles, a spring, etc. The utility model is characterized in that the middle parts of the lock core and the lock body are respectively provided with one rotatable circular ring provided with a marble hole. Therefore, the lock has two rotary contact surfaces, one rotary contact surface is the inner circle surface of the circular ring, and the other rotary contact surface is the outer surface of the circular ring. Both sides of the circular ring are respectively provided with the spacing screw and a long through hole. The corresponding positions of the lock core and the lock body are respectively provided with the spacing screw and a long through hole. Each set of marbles can be fixed on a given rotary contact surface through the limitation of the spacing screws and the long holes, and therefore, the purpose that the lock can not be pried by any tool is achieved.

Description

Two-sided anti-pulling pellet lock

The utility model relates to a kind of cylinder lock, particularly a kind of two-sided anti-pulling pellet lock.

Current the most frequently used cylinder lock (see figure 1), form by lock body and lock core, at the corresponding face of lock body several circular holes are arranged with lock core, two pellets shot from a slingshot that length is different are arranged in each hole, above the pellet shot from a slingshot spring is arranged in the lock body opening, pellet shot from a slingshot is pushed to the lock core direction, the abutted surface of every group of pellet shot from a slingshot is in lock core, top pellet shot from a slingshot is stuck in lock body opening and the lock core hole, and lock core can not be rotated in lock body, and lock is in the state of not opening.When the key of this lock injects lock core (state shown in Figure 1), tooth on the key is with each pellet shot from a slingshot moving up in various degree all, and the abutted surface that makes two pellets shot from a slingshot in each hole all matches with the commentaries on classics face of executing of lock body and lock core, and lock core can rotate, and turns key lock and has just opened.Hence one can see that, no matter be top pellet shot from a slingshot or following pellet shot from a slingshot, as long as there is a pellet shot from a slingshot to be stuck in lock body opening and the lock core hole, just lock is not opened the reason that this just opens different locks with different keys.But, facts have proved, present the most frequently used cylinder lock, comprise built-in lock, padlock, drawer-lock etc., neither be very safe, because between pellet shot from a slingshot and the pellet shot from a slingshot hole, all gapped between lock body and the lock core, therefore can use very simple tools, pellet shot from a slingshot is dialled to the pellet shot from a slingshot direction that spring is arranged singly, give revolving force of lock core simultaneously, when the abutted surface of pellet shot from a slingshot and pellet shot from a slingshot arrived the abutted surface of lock body and lock core, lock core just had small rotation, remove instrument after, top pellet shot from a slingshot just is stuck in the edge of lock core, and following bullet drops to original position.Successively each pellet shot from a slingshot is repeated above-mentioned action, each pellet shot from a slingshot all is stuck on the edge of lock core, lock core did not have any pellet shot from a slingshot and stopped that lock core can rotate this moment, that is to say, lock has been opened.Show that through investigation the more skilled lock personnel that repair in the ordinary course of things, dial the time that drawer-lock only needs several seconds kinds, dial the built-in lock or the padlock of more complicated, also only need about one minute.As seen, general cylinder lock is also also dangerous.

The utility model is exactly a kind of safe and reliable two-sided anti-pulling pellet lock that provides at the problems referred to above.In order to solve the existing problem of general cylinder lock, characteristics of the present utility model are that several annulus are arranged between lock body and lock core, and the position of each annulus is all corresponding with every group of pellet shot from a slingshot position, and is drilled with the pellet shot from a slingshot hole on each annulus.Lock core just has two rotation contact surfaces relatively, and one is the rotation contact surface of annulus cylindrical and lock body opening, and another is the rotation contact surface of circle in lock core and the annulus.That is to say that two pellet shot from a slingshot abutted surfaces are as long as match with above-mentioned two of rotating in the contact surfaces, lock core just can rotate.Only match in order to limit two pellet shot from a slingshot abutted surfaces with the rotation contact surface of annulus cylindrical and lock body opening, or only with lock core and annulus in the rotation contact surface of circle when matching, lock core could rotate, a sidetracking perpendicular at each annulus and pellet shot from a slingshot hole axial line has a screw hole, and opposite side has microscler through hole.On the relative position of the microscler through hole of lock core and annulus, be drilled with screw hole.On the lock body position relative, have microscler through hole with the annulus screw hole.The elongated hole on the lock body and the width of the elongated hole on the annulus slightly are narrower than billiards diameter, and can not be by being advisable with pellet shot from a slingshot, and the length of elongated hole is 4 times of width.Lock core the tighten up a screw diameter in hole of hole and annulus of tightening up a screw is slightly less than the width of elongated hole.At last, as required,, in the time of just can limiting two pellet shot from a slingshot abutted surfaces and which rotation contact surface and match, just can open lock at the screw hole limited screw of screwing on.For example, to rotate contact surface and be selected in the outer bowlder (see figure 4) of annulus, then at the screw hole of the lock core limited screw of screwing on, when the pellet shot from a slingshot abutted surface is in circle ring inner surface, though lock core also can rotate, just be stuck on the elongated hole of annulus by the limited screw on the lock core but can only rotate very little angle, and have pellet shot from a slingshot to be stuck on the lock body in the pellet shot from a slingshot hole on the annulus, so lock core can't rotate.Be selected in bowlder (see figure 3) in the annulus when rotating contact surface, then at the screw hole of the annulus limited screw of screwing on, when the pellet shot from a slingshot abutted surface is in the annulus external surface, the lock core rotation will drive annulus and rotate together, but the angle that also can only change very little just is stuck on the elongated hole of lock body by the limited screw on the annulus, and have pellet shot from a slingshot to block annulus in the lock core, so lock core can't rotate.After lock preparation was finished, when the abutted surface of pellet shot from a slingshot only was in the surfaces of revolution of setting, lock core was just rotatable and open lock.

The utility model in actual use, it is the same with common spring lock to open the lock with the key, but what instrument that don't work is also dialled and do not unblanked.Because when upwards stirring pellet shot from a slingshot with instrument, the pellet shot from a slingshot in each hole all has two surfacess of revolution to select, as long as there have the surfaces of revolution in a hole to select to be wrong, lock core just can block by limited screw after rotation, the lock that these selections regard to 5 pellet shot from a slingshot holes has the combination of 2 * 2 * 2 * 2 * 2=32 kind, and common lock is had only the combination of 1 * 1 * 1 * 1 * 1=1 kind, this has also just improved the safety factor of lock widely.The abutted surface of pellet shot from a slingshot is set in the annulus outer round surface in a hole, when shifting the pellet shot from a slingshot abutted surface outer round surface of annulus onto with instrument, instrument leaves when preparing to dial another group pellet shot from a slingshot, because can't pass at the revolving force that adds on the lock core on the annulus in this hole, annulus can't block pellet shot from a slingshot, pellet shot from a slingshot also will fall, so instrument must always push away pellet shot from a slingshot.Each lock must set all that the pellet shot from a slingshot abutted surface is set in the annulus external surface in two or more holes, because of any instrument all can't be dialled two pellets shot from a slingshot in the hole simultaneously, thereby also just group does not unblank.

Below in conjunction with accompanying drawing and with the two-sided anti-pulling pellet lock of five groups of pellets shot from a slingshot is embodiment, and the utility model is described in further detail.Fig. 1 is that sectional drawing, Fig. 2 of common spring lock is that front view, Fig. 3 of the utility model lock core is that C-C sectional drawing (pellet shot from a slingshot knot face mutually is set in circle in the annulus), Fig. 4 are that B-B sectional drawing (pellet shot from a slingshot knot face mutually is set in the annulus cylindrical), Fig. 5 are that front view, Fig. 6 of lock core is that D-D sectional drawing, Fig. 7 are the front view of annulus, the lateral view that Fig. 8 is annulus, the front view that Fig. 9 is lock body, the lateral view that Figure 10 is lock body.

Fig. 2 is that the utility model front view, Fig. 3, Fig. 4 are sectional drawing, and as seen from the figure, the utility model is made up of lock body 1, lock core 2, annulus 3, locating ring 4, jump ring 5, pellet shot from a slingshot 6, spring 7, limited screw 8 etc.On the relative position of every group of pellet shot from a slingshot between lock core 2 and the lock body, 5 annulus 3 are arranged, annulus 3 can rotate freely at lock body 1 and 2 of lock cores, also respectively has the pellet shot from a slingshot hole on each annulus, and annulus is that material is a brass, and thick is 1.5mm.By Fig. 3 and Fig. 4 as seen, on the perpendicular direction of every group of pellet shot from a slingshot and pellet shot from a slingshot hole axial line, on the relative position of lock core left side 5 M2 screws that 2.5mm is dark are arranged, its left side then has the through hole of 5 long 8mm of wide 2.5mm.On the relative position of lock body right side, have the through hole of 5 wide 2.5mm, long 8mm.In when lock dress, be set in two groups of annulus cylindrical for the pellet shot from a slingshot bonding surface, the limited screw (see figure 4) of on the relative position of lock core, respectively screwing on, and all the other respectively organize pellet shot from a slingshot, the limited screw (see figure 3) of then respectively screwing on the relative position of annulus.The effect of locating ring 4 is in order to guarantee the relative position between lock core and the lock body, and the effect of jump ring 5 is to guarantee when unblanking, and lock core can not skid off from lock body.Obviously,, each can be locked two groups of fixed-site that the pellet shot from a slingshot bonding surface is set in the annulus cylindrical, so just can process 5 screw holes and 5 slotted holes less for easy to process.By above-mentioned setting, when the key of lock being inserted in the keyhole of lock core, the face of tying mutually of two groups of pellets shot from a slingshot of B-B section must be pulled on the surfaces of revolution of annulus cylindrical, the face of tying mutually of its excess-three group pellet shot from a slingshot (C-C section) then is pulled on the surfaces of revolution of circle in the annulus, this moment, lock core did not have any resistance, key, lock core are also rotated thereupon, and lock has also just been opened.Each parts that is connected when rotating and common various functions with lock core phase-locked with.

Claims (3)

1, a kind of cylinder lock, particularly a kind of two-sided anti-pulling pellet lock, form by lock body, lock core, annulus, locating ring, jump ring, pellet shot from a slingshot, spring, limited screw etc., each annulus all be contained between lock body and the lock core and with every group of corresponding position of pellet shot from a slingshot on, on each annulus, also be drilled with the pellet shot from a slingshot hole, it is characterized in that; A side perpendicular at each annulus and pellet shot from a slingshot hole axial line has a screw hole, and opposite side has a microscler through hole.

2, two-sided anti-pulling pellet lock according to claim 1 is characterized in that: be drilled with screw hole on the relative position of the microscler through hole of lock core and annulus.

3, two-sided anti-pulling pellet lock according to claim 1 is characterized in that: have microscler through hole on the lock body position relative with the annulus screw hole.

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