CN201206361Y

CN201206361Y - Cylinder lock and key

Info

Publication number: CN201206361Y
Application number: CNU2008200860135U
Authority: CN
Inventors: 陆颂荫
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2009-03-11
Anticipated expiration: 2018-04-17

Abstract

The utility model relates to a night lock head and a key. The night lock head comprises a lock body (2), a shell (3), a lock cylinder (4), billiards (6), a billiard spring (10), a locating pin (12), a guide post (11) and a matched key (7) which are assembled together, wherein the interior of a key head (1) is a cavity (13), the shape of the cavity (13) is matched with the outline of the guide post (11), concave holes (8) corresponding to the numbers and the outlines of the billiards (6) are formed on the outer circumferential surface of the key head (1), the cross section of the guide post (11) is kidney shaped, and the cross section of the key head (1) is of kidney shape matched with the outline of the guide post (11); and the billiards (6) are positioned on the cylindrical surface formed by the arc edges of the guide post (11). With the structure, other unmatched keys cannot unlock the night lock at all, the mutual unlocking rate is zero, and the safety performance and the burglarproof performance of the night lock are improved remarkably.

Description

Ball lock head and key

Technical field

The utility model relates to a kind of lock, specifically is a kind of ball lock head and key with axial cylinder hole.

Background technology

Lockset is the important daily necessities of popularizing very much in the society, and along with growth in the living standard, people are more and more higher to its safe antitheft performance demands.Lock on the domestic and international market is of a great variety at present, wherein cylinder lock is modal a kind of, common ball lock head locks lock core by pellet shot from a slingshot and rotates, and each the pellet shot from a slingshot group in the lock is by two compositions, when unblanking, the contact surface of two pellets shot from a slingshot overlaps with the contact surface of lock core and lock body, lock core can rotate relative to lock body, and during locking, the contact surface of two pellets shot from a slingshot does not overlap with the contact surface of lock core and lock body, because the barrier effect of pellet shot from a slingshot, lock core cannot rotate.But thisly be latched in following shortcoming: 1. this lock is easy to open with the unlocking tool cover of non-matching key, as master key, Unlocking gun etc., this is because two pellets shot from a slingshot that these unlocking tools can both make each pellet shot from a slingshot group one by one in the dislocation of the contact surface place of lock core and lock body, all overlap with the contact surface of lock core and lock body up to their contact surface.2. the lockhole on this tapered end is positioned at lock core middle part and through the lock core center line, the installation site of shift fork on lockhole, with unlocking tool by lockhole under the strike of external force, the lock core shift fork can be washed out, fast lock is opened with special tool then.Owing to exist above-mentioned shortcoming, the security performance of this cylinder lock and theftproof performance are all lower.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of and can significantly improve the security performance of cylinder lock and the ball lock head and the key of theftproof performance.

For solving the problems of the technologies described above, a kind of ball lock head and key that the utility model provides, comprise lock body, case, lock core, pellet shot from a slingshot, marble spring, alignment pin, lead and the key that is complementary with lock core, described lock core is connected by alignment pin with lead, lead is positioned at lock core, lock core is installed in the lock body, lock body is embedded in the case, pellet shot from a slingshot and marble spring are arranged in the pellet shot from a slingshot hole of lock body and lock core, the inside of the key head of described key is cavity, the beginning of cavity and the profile of lead match, and have on the outer circumference surface of key head and pellet shot from a slingshot number and the corresponding shrinkage pool of profile, the cross section of described lead is a waist shape, and promptly the both sides that lead is wherein relative are straight flange, relative in addition both sides are the circular arc limit, the waist shape that the cross section of described key head matches for the profile with lead; Described pellet shot from a slingshot is positioned on the face of cylinder that the circular arc limit of lead constitutes.

After adopting above structure, because pellet shot from a slingshot is to be arranged on the face of cylinder of waist shape lead, promptly shrinkage pool on the key also is to be arranged on the face of cylinder of waist shape key head outer peripheral face, key is difficult to be joined by imitative like this, therefore other non-matching key can't be opened cylinder lock at all, the rate of changing out equals zero, and then can significantly improve the security performance and the theftproof performance of cylinder lock.

As improvement, the distribution of described pellet shot from a slingshot on the face of cylinder of lead is four row, and the shrinkage pool on the described key head correspondingly quantity on its face of cylinder also has four row.After adopting this structure, the pellet shot from a slingshot layout is the vertical formula of four intersections on the face of cylinder of waist shape arranges, and makes the more difficult quilt of key imitate and joins.

As further improvement, described pellet shot from a slingshot is 1 to 7 along the number of each row on the lead face of cylinder, and the shrinkage pool on the described key head is 1 to 7 in the number of each row correspondingly.After adopting this structure, pellet shot from a slingshot is arranged in the vertical formula of four intersections and is irregular distribution, makes that the rate of changing out of cylinder lock is lower.

Description of drawings

Shown in Figure 1 is the sectional structure schematic diagram of the utility model ball lock head and key;

Shown in Figure 2 is the pellet shot from a slingshot distribution schematic diagram of the utility model ball lock head and key;

Shown in Figure 3 is the upward view of key in the utility model ball lock head and the key.

Wherein, 1, key head; 2, lock body; 3, case; 4, lock core; 5, guiding raised line; 6, pellet shot from a slingshot; 7, key; 8, shrinkage pool; 9, pellet shot from a slingshot hole; 10, marble spring; 11, lead; 12, alignment pin; 13, cavity.

The specific embodiment

Below in conjunction with the drawings and specific embodiments to further detailed explanation of the utility model.

By the sectional structure schematic diagram of the utility model ball lock head shown in Figure 1 and key as can be known, the utility model ball lock head and key, comprise lock body 2, case 3, lock core 4, pellet shot from a slingshot 6, marble spring 10, alignment pin 12, lead 11 and the key 7 that is complementary with lock core 4, described lock core 4 is connected by alignment pin 12 with lead 11, lead 11 is positioned at lock core 4, lock core 4 is installed in the lock body 2, lock body 2 is embedded in the case 3, pellet shot from a slingshot 6 and marble spring 10 are arranged in the pellet shot from a slingshot hole 9 of lock body 2 and lock core 4, the inside of the key head 1 of described key 7 is cavitys 13, the profile of the shape of cavity 13 and lead 11 matches, and on the outer circumference surface of key head 1, have and pellet shot from a slingshot 6 numbers and the corresponding shrinkage pool 8 of profile, the cross section of described lead 11 is a waist shape, be that the wherein relative both sides of lead 11 are straight flange, relative in addition both sides are the circular arc limit, the waist shape that the cross section of described key head 1 has the profile with lead 11 to match; Described pellet shot from a slingshot 6 is positioned on the face of cylinder that the circular arc limit of lead 11 constitutes.

By the pellet shot from a slingshot distribution schematic diagram of the utility model ball lock head shown in Figure 2 and key as can be known, the distribution of described pellet shot from a slingshot 6 on the face of cylinder of lead 11 is four row, and the shrinkage pool 8 on the described key head 1 correspondingly quantity on its face of cylinder also has four row.Described pellet shot from a slingshot 6 is 1 to 7 along the number of each row on lead 11 faces of cylinder, and the shrinkage pool 8 on the described key head 1 is 1 to 7 in the number of each row correspondingly.

By the upward view of key in the utility model ball lock head shown in Figure 3 and the key as can be known, in the middle of the key head 1 cavity 13 is arranged, the profile of the shape of its cross section cavity 13 and lead 11 matches.

During use, key head 1 inserts lock core 4, the direction recess of guiding raised line 5 on the key head 1 on lock core 4 inserts lock core cavity, lead 11 is arranged in key inner chamber 13, key head 1 stretches to the lock core cavity bottom, the pellet shot from a slingshot 6 that is positioned at lock body 2 and the vertical arrangement of lock core 4 intersections that this moment is all enters the shrinkage pool 8 on corresponding key head 1 outer peripheral face, gets final product screw key 7, realizes the keying function of lockset.

When key 1 was extracted lock core 4, screw key head 1 made key guiding raised line 5 alignment guide grooves, and key 7 can withdraw from, and outwards extracts.All lock body 2 and lock cores 4 of being positioned at intersect the pellet shot from a slingshot of vertically arranging 6 and break away from corresponding key shrinkage pool 8 automatically when extracting key 7, make pellet shot from a slingshot 6 reset.

Claims

1, a kind of ball lock head and key, comprise lock body (2), case (3), lock core (4), pellet shot from a slingshot (6), marble spring (10), alignment pin (12), lead (11) and the key (7) that is complementary with lock core (4), described lock core (4) is connected by alignment pin (12) with lead (11), lead (11) is positioned at lock core (4), lock core (4) is installed in the lock body (2), lock body (2) is embedded in the case (3), pellet shot from a slingshot (6) and marble spring (10) are arranged in the pellet shot from a slingshot hole (9) of lock body (2) and lock core (4), the inside of the key head (1) of described key (7) is cavity (13), the profile of the shape of cavity (13) and lead (11) matches, and on the outer circumference surface of key head (1), have and pellet shot from a slingshot (6) number and the corresponding shrinkage pool of profile (8), it is characterized in that: the cross section of described lead (11) is a waist shape, be that the wherein relative both sides of lead (11) are straight flange, relative in addition both sides are the circular arc limit, the waist shape that the cross section of described key head (1) has the profile with lead (11) to match; Described pellet shot from a slingshot (6) is positioned on the face of cylinder that the circular arc limit of lead (11) constitutes.

2, ball lock head according to claim 1 and key, it is characterized in that: the distribution of described pellet shot from a slingshot (6) on the face of cylinder of lead (11) is four row, and the shrinkage pool (8) on the described key head (1) the correspondingly quantity on its face of cylinder also has four row.

3, ball lock head according to claim 2 and key, it is characterized in that: described pellet shot from a slingshot (6) is 1 to 7 along the number of each row on lead (11) face of cylinder, and the shrinkage pool (8) on the described key head (1) is 1 to 7 in the number of each row correspondingly.