CN108661439A

CN108661439A - A kind of dual-purpose lock core and its matched key

Info

Publication number: CN108661439A
Application number: CN201710199397.5A
Authority: CN
Inventors: 雷先鸣
Original assignee: Guangdong Gold Atom Security Polytron Technologies Inc
Current assignee: Guangdong Gold Atom Security Polytron Technologies Inc
Priority date: 2017-03-30
Filing date: 2017-03-30
Publication date: 2018-10-16
Anticipated expiration: 2037-03-30
Also published as: CN108661439B

Abstract

The invention discloses a kind of dual-purpose lock core and its matched keys, the dual-purpose lock core includes lock tube and loaded on the lock core in lock tube, the lock core upper edge keyhole can be along the engineering pin that keyhole moves equipped with several pellets and one, one of pellet is engineering pellet, is respectively equipped with and matched first and second convex block of engineering pellet and key on the engineering pin；The engineering pin is limited the engineering pellet using first convex block in initial position, when the key acts on the second convex block of engineering pin so that the first convex block of engineering pin releases the limit to the engineering pellet.Structure of the invention is reasonable, is easily worked, and required precision is not high, good using sure effect, as long as being inserted into normal key, you can thoroughly prevent engineering key unlocking, preferably solve the problems, such as that failure is more when prior art use.

Description

A kind of dual-purpose lock core and its matched key

Technical field

The invention belongs to lock cores, and in particular to a kind of dual-purpose lock core and its matched key.

Background technology

In order to be applicable in the needs of homeowner finishes, after thering is a kind of dual-purpose lock core to be mounted on door on the market, while being furnished with two Key, one being that engineering key transfers to finishing master worker to use, and another handle is that normal key is grasped by house-owner.After finishing completion, only Lock core is inserted into normal key to unlock, engineering key, which cancels, to unlock.The structure of this dual-purpose lock core as shown in Figure 1, It is that engineering hole is interior to be equipped with engineering pellet 202 and engineering pearl 203, in lock core using a marble hole on lock core 2 as engineering hole The Tibetan hole of bead 201 that engineering pearl 203 can be accommodated in rotation process is additionally provided on 2, with the 2 matching used engineering of lock core Key a and normal key b is respectively equipped with an engineering tartar different from the correspondence of engineering pellet 202 but height, and other tartars are then It is identical, when using engineering key a, such as scheme（a）Shown, the engineering tartar on engineering key a is making the height of engineering pearl 203 just It is good to be flushed with lock core circumferential surface（The height of other pellets in lock core is also flushed with lock core circumferential surface）, lock core can be rotated 2 realize unlocking.When using normal key b, such as scheme（b）Shown, the engineering tartar on normal key b makes engineering pellet 202 Height just flushed with lock core circumferential surface, and engineering pearl 203 is then headed into 1 corresponding engineering hole of lock housing, rotation lock Core 2 may be implemented to unlock, and during rotating lock core 2, such as scheme（c）Shown, engineering pearl 203 can permanently fall into the Tibetan on lock core 2 In the hole of bead 201, later if reusing engineering key a, such as scheme（d）It is shown, since engineering pearl 203 is from the original engineering of lock core 2 It is transferred in hole and hides the hole of bead 201, when the engineering tartar on engineering key a coordinates with engineering pellet 202, original engineering pearl 203 Position is occupied by the engineering pellet 101 in corresponding engineering hole in lock tube 1, and lock core 2 is limited, and lock core 2 cannot rotate, Wu Fakai Lock, engineering key a cancel.Existing dual-purpose lock core, which has several drawbacks all, cannot make engineering pearl 203 smoothly fall into the Tibetan hole of bead 201 It is interior, it can not achieve the purpose for making engineering key fail：First, engineering pearl cannot drop to the Tibetan hole of bead when house-owner's unlocking process is too fast In, it is hidden in the hole of bead second is that hiding engineering pearl when there is mismachining tolerance in the hole of bead and engineering hole concentricity and can not drop to, third, in lock tube The bad guarantee of engineering hole concentricity on engineering hole and lock core, no matter which kind of situation, engineering key still can unlock, when use therefore Hinder more.If hiding the hole of bead and engineering hole concentricity, the engineering hole of lock tube and lock core will be processed accurately, then cost can be caused to increase Add.

Invention content

The object of the present invention is to provide a kind of reasonable for structure, using effect is good, the few dual-purpose lock core of failure and its mating key Spoon.

Dual-purpose lock core provided by the invention, including lock tube and loaded on the lock core in lock tube, the lock core upper edge keyhole is set It can be engineering pellet along the engineering pin that keyhole moves, one of pellet to have several pellets and one, distinguished on the engineering pin Equipped with matched first and second convex block of engineering pellet and key；The engineering pin is convex using described first in initial position Block limits the engineering pellet, when the key acts on the second convex block of engineering pin so that the first convex block solution of engineering pin Except the limit to the engineering pellet.

It is equipped with front and back anchor point in the direction of motion of the engineering pin on the lock core, it is fixed that the engineering pin is equipped with elasticity Position pearl matches with the front and back anchor point on the lock core realizes the front and back flexibly positioned of the engineering pin.

It is equipped with front and back anchor point in the direction of motion of the engineering pin on the lock core, the engineering pin is equipped with elastic card It is matched with the front and back anchor point on the lock core flexibly positioned before and after realizing the engineering pin.

The engineering pin is equipped with to be located at the engineering key and the matched groove of normal key, second convex block In the groove.

The engineering pellet is located at the lock core tail portion.

The provided by the invention and mating key of the dual-purpose lock core, including engineering key and normal key, the engineering Key front end is equipped with the tartar notch for avoiding the notch of the second convex block and the evacuation engineering pellet on the engineering pin, described general Logical key front end be equipped with on the engineering pin the matched boss of the second convex block and with the matched tooth of engineering pellet Flower.

Beneficial effects of the present invention：

Structure of the invention is reasonable, is easily worked, and required precision is not high, good using sure effect, as long as being inserted into normal key, you can Engineering key unlocking thoroughly is prevented, preferably solves the problems, such as that failure is more when prior art use.

The technical solution further illustrated the present invention below in conjunction with the accompanying drawings.

Description of the drawings

Fig. 1 is the structure of existing dual-purpose lock core and different working state schematic representations.

Fig. 2 is the front view of the dual-purpose lock core of the present invention.

Fig. 3 is the left view sectional view for inventing dual-purpose lock core.

Fig. 4 is the vertical view for inventing dual-purpose lock core.

Fig. 5 to Fig. 7 is the use state diagram of dual-purpose lock core shown in Fig. 2 to Fig. 4 respectively.

Fig. 8 is the structure of another engineering pin and different schematic view of the mounting position in the present invention.

Fig. 9 is the structural schematic diagram of another engineering pin in the present invention.

Figure 10, Figure 11 are the structural schematic diagram of the engineering key and normal key mating with the dual-purpose lock core of the present invention respectively.

Specific implementation mode

See Fig. 2 to Fig. 7, dual-purpose lock core provided by the invention, including lock tube 1 and loaded on the lock core 2 in lock tube 1, lock core 2 is logical It crosses clamp spring 4 to be located in lock tube 1,1 inner wall of the lock tube is equipped with locking side column card slot 11, if 2 upper edge keyhole of lock core is equipped with Dry blade marble and its return spring and with the matched locking side column 12 of V-shaped groove on blade marble, wherein be located at 2 tail of lock core The blade marble and its return spring in portion and the V-shaped groove on the blade marble are respectively engineering pellet 9, return spring 10 and V-arrangement Slot 901 can stretch into locking side column card when the locking side column card slot 11 that locking side column 12 is turned to lock core 2 on 1 inner wall of lock tube In slot 11, the keyhole side of 2 tail portion of lock core is equipped with sliding slot 5, and one is equipped in sliding slot 5 can be sliding before and after keyhole in sliding slot 5 Dynamic engineering pin 6, engineering pin 6 are equipped with the flexibly positioned pearl that is made of steel ball 8 and spring 7, further respectively had on engineering pin 6 with The matched convex blocks 601 and 602 of boss b2 on the side 902 and the front ends normal key b of engineering pellet 9, described on lock core 2 The direction of motion of engineering pin 6 is correspondingly provided with the front and back anchor point 3,3 ' positioned at a protrusion both sides, and the engineering pin 6 is fixed by elasticity Position pearl matches with the front and back anchor point 3,3 ' on the lock core 2 realizes the front and back flexibly positioned of engineering pin 6.

Convex block 601 on the engineering pin 6 can also limit engineering pellet 9 from the outside of the other side of engineering pellet 9 904 Position, installation site are as shown in Figure 8.

The flexibly positioned pearl can also be replaced with elastic card, as shown in figure 9, engineering plastics system can be used in the engineering pin 6 Make, the elastic card 603 coordinated with front and back anchor point on lock core 23,3 ' is equipped in the side of engineering pin 6（Front and back anchor point 3,3 ' is set The position corresponding with elastic card on lock core）, which is provided with the matched grooves 604 of engineering key a and normal key b, With the matched convex blocks 602 of boss b2 on the convex block 601 and the front ends normal key b of the cooperation of 9 side 902 of engineering pellet, convex block 602 are located in groove 604.

Operation principle

1, the engineering key a that invention provides is as shown in Figure 10, and the front ends engineering key a are equipped with lacking for 6 upper protruding block 602 of evacuation engineering pin The tartar notch a1 of 9 upper protruding block 903 of mouth a2 and evacuation engineering pellet, is additionally provided with common tartar a3.The case where using engineering key a As shown in Figures 2 to 4, engineering pin 6 is in the initial position of prelocalization point 3, and convex block 601 thereon is stuck in the side of engineering pellet 9 Engineering pellet 9 is limited in portion 902, the V-shaped groove 901 on engineering pellet 9 is made to be in position corresponding with locking side column 12, and its Its blade marble mutual dislocation, the V-shaped groove above them is not on straight line corresponding with locking side column 12.When unlocking, work After journey key a is inserted into lock core keyhole, due to 9 upper protruding block 903 of notch a2 and evacuation engineering pellet equipped with evacuation engineering pin 6 Tartar notch a1, therefore engineering pellet 9 will not be acted on, other common tartar a3 then act on other blade marbles respectively so that These blade marbles rearrange to the V-shaped groove on all blade marbles be aligned with the V-shaped groove 901 on engineering pellet 9 and with lock Side column 12 corresponds in alignment, this is locked out side column 12 and falls into the V-shaped groove of whole blade marbles and engineering pellet 9, together When receded into lock core out of lock tube 1 locking side column card slot 11, can rotate lock core 2, realize and unlock.

2, normal key b provided by the invention is as shown in figure 11, and the front ends normal key b are equipped with and the convex block on engineering pin 6 602 matched boss b2 and with 9 upper protruding block of engineering pellet, 903 matched tartar b1, be additionally provided with it is general on engineering key a Lead to the identical common tartar b3 of tartar a3.The case where using normal key b, is as shown in Figures 5 to 7, when unlocking, normal key b After being inserted into lock core keyhole, the convex block 602 that the boss b2 on normal key b is acted on engineering pin 6 makes engineering pin 6 by lock core Prelocalization point 3 on 2 slides into rear anchor point 3 ' and positions, and tartar b1 then makes engineering pellet 9 keep original initial position, commonly Other common tartar b3 on key b are identical as the shape of other common tartar a3 on engineering key a and effect, therefore can realize It unlocks.

3, engineering key a is reused after normal key b uses for the first time, due to the normal key b that uses for the first time from After lock core 2 is extracted out, engineering pin 6 is maintained at the positioning states of rear anchor point 3 ', and engineering pellet 9 loses the position-limiting action of engineering pin 6, Deviate original initial position under the action of return spring 10, V-shaped groove 901 thereon misplaces with locking side column 12, makes again When with engineering key a, so that it is restored original initial position since engineering key a cannot act on engineering pellet 9, therefore fail not It can unlock.

When lock core 2 is enough long, normal key b can be with it goes without doing boss b2, can be directly by the front end pushing tow engineering pin of key b 6。

When finishing, engineering key a gives finishing master worker and uses, and normal key b is used by house-owner oneself.

Claims

1. a kind of dual-purpose lock core, including lock tube and loaded on the lock core in lock tube, it is characterized in that the lock core upper edge keyhole is equipped with Several pellets and one can be engineering pellet along the engineering pin that keyhole moves, one of pellet, be set respectively on the engineering pin Have and matched first and second convex block of engineering pellet and key；The engineering pin utilizes first convex block in initial position The engineering pellet is limited, when the key acts on the second convex block of engineering pin so that the first convex block of engineering pin releases Limit to the engineering pellet.

2. dual-purpose lock core according to claim 1, it is characterized in that being set in the direction of motion of the engineering pin on the lock core There are front and back anchor point, the engineering pin to be matched described in realization with the front and back anchor point on the lock core equipped with flexibly positioned pearl Engineering pin it is front and back flexibly positioned.

3. dual-purpose lock core according to claim 1, it is characterized in that being set in the direction of motion of the engineering pin on the lock core There are front and back anchor point, the engineering pin to be matched with the front and back anchor point on the lock core equipped with elastic card and realize the engineering That sells is front and back flexibly positioned.

4. dual-purpose lock core according to claim 3, it is characterized in that the engineering pin is equipped with and the engineering key and general The matched groove of logical key, second convex block are located in the groove.

5. dual-purpose lock core according to any one of claims 1 to 4, it is characterized in that the engineering pellet is located at the lock core tail Portion.

6. a kind of key mating with dual-purpose lock described in claim 5, including engineering key and normal key, the engineering key Front end is equipped with the tartar notch for avoiding the notch of the second convex block and the evacuation engineering pellet on the engineering pin, the common key Spoon front end be equipped with on the engineering pin the matched boss of the second convex block and with the matched tartar of engineering pellet.