CN2571944Y

CN2571944Y - Lock with square section core

Info

Publication number: CN2571944Y
Application number: CN 02247842
Authority: CN
Inventors: 李永生
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-16
Filing date: 2002-08-16
Publication date: 2003-09-10
Anticipated expiration: 2012-08-16

Abstract

The utility model discloses a lock with a quadrate lock core, which relates to the technology of mechanical locks. The utility model is composed of a lock shell, a lock sleeve, a lock core, a shifting fork, a lock tongue and a corresponding tongue slot, wherein, the lock core is quadrate, a plurality of slide ways are arranged on the lock core, the center of the lock core is provided with a lock hole, and spacing is arranged between the shifting fork fixed on the back end of the lock core and the shifting position of the lock tongue; the lock core is installed in an open quadrate hole on the back end of the lock sleeve in the mode of movable fit, the front end of the lock core is abutted on the end surface of a blind hole of the lock sleeve, and the lock hole of the lock core corresponds to a lock hole on the blind hole of the lock sleeve; the top circle of the lock sleeve is provided with a circumferential groove, the lock sleeve is movably sheathed in the inner circle of a lock seat fixed on the lock shell, a circular pin is fixed on the lock seat, and one end of the circular pin is extended into the groove on the top circle of the lock sleeve and is in a limiting movable fit state. When the lock is unlocked, the lock core is first moved horizontally and then rotated, which avoids the error brought by the spherical contact of an upper and a lower sliding pins and improves the accuracy of the lock.

Description

Square shaped lock core lock

The field: the utility model relates to the mechanical lock technology.

Prior art: present mechanical door lock used in everyday, generally form by lock housing, lock tube, lock core, fixing shift fork, the dead bolt corresponding in lock core rear end with shift fork.One row's circular hole is arranged in the lock tube, the pin that binds, spring are installed in the circular hole, go up sliding pin, lower slide pin, after relying on key to inject lockhole, when the line of demarcation that makes sliding pin and lower slide pin is the face of cylinder movingly of circle in lock core cylindrical and the lock tube just, lock core rotates in can justifying in lock tube, the shift fork that is fixed on the lock core rear end is rotated, and shift fork is stirred the dead bolt translation and is realized unblanking.The defective that this universal architecture exists is: lower slide pin is to slide up and down in lock core, and the upper surface of lower slide pin is not the plane, but sphere.The radius of sphere is equal to or less than the lock core exradius, so that coincide the slyness of unblanking with the lock core cylindrical.But if this moment, key had error, the lower slide pin position is low spot slightly, and goes up the sphere that plane that sliding pin contacts with it heads on lower slide pin, and the cylinder lower surface cylindrical of last sliding pin does not fall into again in the chute of pin core, sells core and can rotate equally.That is to say that this kind precise structure degree is low, the flank of tooth height error value of key needs only between the height of the sphere top of lower slide pin upper surface and Spherical Bottom and just can unblank in the same old way.At present, though various lock has been done a lot of improvement, as two-sided lock, key is two row's grooves on a dull and stereotyped mainspring cock jewel; Or the four sides lock, key is " ten " word zigzag, but does not all break away from this lock core rotational structure, does not all eliminate this error; That is to say that precision is not high.

Summary of the invention: the objective of the invention is to overcome above-mentioned defective, provide a kind of precision high square shaped lock core lock.

Scheme of the present utility model is: lock core is square, several chutes are arranged on the lock core, there is lockhole in lock core central authorities, there is an intersegmental distance shift fork that the lock core rear end is fixing and the position of stirring of dead bolt, lock core is installed in the square hole of lock tube open rearward end movingly, the front end of lock core heads on lock tube blind hole end face, the lockhole of lock core is corresponding with lockhole on the lock tube blind hole, the lock tube cylindrical has a circumferential groove, in justifying in the lock of lock tube kink on being fixed on lock housing, fix a round pin on the lock, this round pin one end extend in the groove of lock tube cylindrical, is spacing state movingly.

The utility model has the advantages that: translation backward again after employing key and the lock core contraposition, then rotate the mechanism of unblanking simultaneously and improved precision together with the lock tube shift fork.Because this structure has overcome the sliding pin error.

Description of drawings: Fig. 1 is the utility model front view.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the lock construction schematic diagram of slick and sly pin, sawtooth key formula.

Fig. 4 is a prior art slide down pin contacts face schematic diagram.

1 is the pin that binds among the figure, and 2 is last sliding pin, and 3 is lower slide pin, and 4 is lock, and 5 is lock tube, and 6 is lock core, and 7 is shift fork, and 8 is dead bolt.

Fig. 2 also can be used as the lock construction schematic diagram of slick and sly pin, dull and stereotyped key.

Specific embodiment: the utility model is made up of lock housing, lock tube, lock core, shift fork, dead bolt and corresponding glossal canal.Lock core (6) is square, lock core has several chutes on (6), there is lockhole in lock core (6) central authorities, there is an intersegmental distance shift fork (7) that lock core (6) rear end is fixing and the position of stirring of dead bolt (8), lock core (6) is installed in the square hole of lock tube (5) open rearward end movingly, the front end of lock core (6) heads on lock tube (5) blind hole end face, the lockhole of lock core (6) is corresponding with lockhole on lock tube (5) blind hole, the lock tube cylindrical has a circumferential groove, lock tube (5) kink is in the lock (4) on the fixing lock housing in the circle, fix a round pin on the lock (4), this round pin one end extend in the groove of lock tube (5) cylindrical and is spacing state movingly.In several chutes of lock tube (5) and corresponding several chutes of lock core (6), several lower slide pins (3) are installed respectively, go up sliding pin (2), spring, the pin that binds combination.Chute can be single, also can be double, or even many rows, the chute cross section is corresponding with the sliding pin cross section.

The sliding pin cross section can be square up and down, also can be circular, and sliding pin and chute are movingly.

A kind of form of structure is: the lockhole on lock tube (5) and the lock core (6) is horizontal square hole.The sliding pin cross section is square up and down, and last sliding pin (2) is rectangular-shaped; Lower slide pin (3) top is rectangular-shaped, the big up and small down boss shape in bottom, and boss face can be the isosceles chamfered transition, or the arc surface transition.When inserting and postpone from lock tube (5), the flat key that is drilled with corresponding several holes or several grooves stretches in the lockhole of lock core (6), the boss of the hole of key and lower slide pin (3) is at once, because keyhole is littler than the cross section of lower slide pin (3), bigger than lower slide pin (3) raised head face area again, so lower slide pin (3) is stuck in the hole, the interface of several slide down pin contacts is in the plane simultaneously with lock core (6) upper surface and lock tube (5) square hole surface.This moment, key pushed away forward again, because the projection section of lower slide pin (3) is stuck in the keyhole, the friction that produces drives lock core (6) and moves backward, lower slide pin (3) moves in lock core (6) simultaneously, the shift fork (7) that integral body moves to lock core (6) rear end enters the corresponding shift fork position at dead bolt (8) rear portion, follow key, because lock core (6) is square, then key, lock core (6), lock tube (5) rotate in lock (4) simultaneously, and the shift fork (7) on the lock core (6) is then stirred dead bolt (8) and unblanked.Unblank after the success, key can rotate return again translation pull out.

Another kind form of structure is that the lock construction employing lock tube (5) of slick and sly pin, dull and stereotyped key and the lockhole on the lock core (6) are horizontal square hole, the sliding pin cross section is circular up and down, last sliding pin (2) is cylindric, lower slide pin (3) also is cylindric, the upper surface of lower slide pin (3) is the plane, and the lower surface is sphere.Key is flat, on several round recesseds are arranged.The principle of unblanking is the same.

Another form of structure for the lock construction of slick and sly pin, sawtooth key formula is: the lockhole on lock tube (5) and the lock core (6) is vertical square hole, last sliding pin (2) is cylindric, lower slide pin (3) also is cylindric, and the upper surface of lower slide pin (3) is the plane, and the lower surface is sphere.Key then is conventional zigzag, and with sawtooth and lower slide pin screens, the principle of unblanking is the same.

The combination of chute and sliding pin can be in lock tube bidirectional arrangements, dull and stereotyped key is made two-way groove group, square shaped lock core is made has two-way chute.In like manner, the combination of chute and sliding pin also can be in lock tube up and down four-way arrange that key is made " mouth " font, cubic to having the groove group, the lockhole of square shaped lock core is made " mouth " word shape.Key can also be made " ten " word zigzag, and then the lockhole of square shaped lock core is made " ten " word hole.Principle all is to adopt the principle of rotating after the translation of square shaped lock core elder generation in a word.

The utility model novel structure, the principle of rotating after the translation of lock core elder generation improves the precision of lock construction, mainly is that the square hole processing difficulties is a little on processing technology.Square hole processing can adopt that the processing square groove then is fixed into a method with square hole part with another corresponding flat part combination on the part.

Claims

1, square shaped lock core lock is made up of lock housing, lock tube, lock core, shift fork, dead bolt and corresponding glossal canal.It is characterized in that lock core (6) is square, lock core has several chutes on (6), there is lockhole in lock core (6) central authorities, there is an intersegmental distance position of stirring that lock core (6) is gone up fixing shift fork (7) in rear end and dead bolt (8), lock core (6) is installed in the square hole of lock tube (5) open rearward end movingly, the front end of lock core (6) heads on lock tube (5) blind hole end face, the lockhole of lock core (6) is corresponding with lockhole on lock tube (5) blind hole, the lock tube cylindrical has a circumferential groove, lock tube (5) kink is in the lock (4) on the fixing lock housing in the circle, fix a round pin on the lock (4), this round pin one end extend in the groove of lock tube (5) cylindrical and is spacing state movingly.

2, square shaped lock core lock according to claim 1 is characterized in that lockhole is horizontal square hole, and the sliding pin cross section is square up and down, and last sliding pin (2) is rectangular-shaped; Lower slide pin (3) top is rectangular-shaped, the big up and small down boss shape in bottom, and boss face can be the isosceles chamfered transition, or the arc surface transition.

3, square shaped lock core lock according to claim 1 is characterized in that lockhole is horizontal square hole, and the sliding pin cross section is circular up and down, and last sliding pin (2) is cylindric, and lower slide pin (3) also is cylindric, and the upper surface of lower slide pin (3) is the plane, and the lower surface is sphere.

4, square shaped lock core lock according to claim 1 is characterized in that the lockhole on lock tube (5) and the lock core (6) is vertical square hole, and last sliding pin (2) is cylindric, and lower slide pin (3) also is cylindric, and the upper surface of lower slide pin (3) is the plane, and the lower surface is sphere.