CN2206819Y

CN2206819Y - Anti-turn spring lock

Info

Publication number: CN2206819Y
Application number: CN 94214155
Authority: CN
Inventors: 郑金国
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-14
Filing date: 1994-06-14
Publication date: 1995-09-06
Anticipated expiration: 2004-06-14

Abstract

The utility model relates to an anti-turn marble lock head, comprising a lock body (1), a lock core (2) inside the lock body, marbles inside the lock core, and springs (4) of the marbles. The utility model is characterized in that the marbles are divided into the upper marbles (5), the middle marbles (6), and the lower marbles (7); the lock body (1) is fixed with an opening sleeve barrel (8) between the lock body (1) and the lock core (2), and the position of a gap of the opening sleeve barrel (8) has a movable arc-shaped block (3) whose arc length is smaller than the length of the gap; the upper end surface of the middle marbles (6) is exactly level with the junction surface of the arc-shaped block (3) and the lock body (1) in the state of nature; the arc-shaped block (3) and the lock core (2) can rotate in the right and left directions within the finite range, which causes the upper marbles (5) and the middle marbles (6) to misplace, and thereby, the attempt that foreign matter enters into the lock core (2) to unlock is thoroughly prevented.

Description

Anti-turn spring lock

The utility model relates to a kind of ball lock head, particularly a kind of anti-pulling pellet lock head.

In existing ball lock head, dial for the sled that prevents so-called MASTERKRY, adopted special-shaped groove, special-shaped pellet shot from a slingshot or multiaspect pellet shot from a slingshot, but these anti-measures of dialling have all just increased the difficulty that sled is dialled, and fundamentally do not stop to prize the possibility of dialling.Notification number be CN2116050U's " compound anti-pulling pellet lock head " a kind of new anti-structure of dialling is disclosed, inside and outside dual lock core and triple pellet shot from a slingshot are arranged, and last pellet shot from a slingshot and middle pellet shot from a slingshot adopt the stepped anti-pellet shot from a slingshot of dialling, though sled group person can carry out pellet shot from a slingshot suitable action and rotate internal cylinder like this, but owing to real dead bolt links to each other with outer lock core, so the lock of still not opening.Yet this scheme still can not fundamentally prevent to prize group person middle pellet shot from a slingshot is allocated to the mating face of outer lock core and lock body, though big difficulty is arranged, but lock might be opened.

The purpose of this utility model just is that provide a kind of for the defective that overcomes above-mentioned prior art stops to prize group possible anti-pulling pellet lock head at all on principle.

Scheme of the present utility model is, the anti-pulling pellet lock head comprises lock core and inner pellet shot from a slingshot and the spring thereof in lock body, the lock body, be described pellet shot from a slingshot branch upper, middle and lower three rows with the difference of common spring lock, notched open sleeve above having one between lock body and the lock core, it encases lock core and is fixed with one with lock body, in the indentation, there of open sleeve the adjustable arc piece of one arc length less than breach is arranged; Described pellet shot from a slingshot concrete arrangement is: middle pellet shot from a slingshot passes the round tube hole on the arc piece, and when nature, middle pellet shot from a slingshot upper surface is just in time concordant with the mating face of arc piece and lock body, like this arc piece together with lock core can be in limited scope left-right rotation; And when key inserted lockhole and is in unlocking condition, middle pellet shot from a slingshot lower surface was just in time concordant with the mating face of arc piece and lock core, and because middle pellet shot from a slingshot is connected as a single entity arc piece and lock body, so thereby lock core can normally be opened by rotation alone by coverlet.

Since under nature lock core can be in limited scope left-right rotation and unlikely unblanking, last pellet shot from a slingshot and middle pellet shot from a slingshot misplace at once, can't prize the behavior of dialling, so even only adopt common round end pellet shot from a slingshot, straight trough lock core can prevent thoroughly that also foreign matter from entering the attempt that lock core is opened.And the utility model is simple in structure, and common Lock Factory utilizes original equipment to process easily.

Description of drawings.

Fig. 1 is a structure cross-sectional schematic of the present utility model.

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

Fig. 3 is the cross-sectional schematic of the utility model when inserting key and being in unlocking condition.

Below in conjunction with accompanying drawing the utility model embodiment is described in further detail.

As shown in Figure 1, 2, the anti-pulling pellet lock head comprises lock core (2) and inner pellet shot from a slingshot and the spring (4) thereof in lock body (1), the lock body, described pellet shot from a slingshot divides upper, middle and lower three row (5) (6) (7), between lock body (1) and lock core (2), the notched open sleeve in a top (8) is arranged, it encases lock core (2) and is fixed with one with lock body (1), in the indentation, there of open sleeve (8) the adjustable arc piece (3) of an arc length less than breach is arranged; Described pellet shot from a slingshot concrete arrangement is: middle pellet shot from a slingshot (6) passes the round tube hole on the arc piece (3), and when nature, in pellet shot from a slingshot (6) upper surface just in time concordant with the mating face of lock body (1) with arc piece (3), like this arc piece (3) together with lock core (2) can be in limited scope left-right rotation; And when key insertion lockhole is in unlocking condition, as shown in Figure 3, middle pellet shot from a slingshot (6) lower surface is just in time concordant with the mating face of lock core (2) with arc piece (3), and because middle pellet shot from a slingshot (6) is connected as a single entity arc piece (3) and lock body (1), thus lock core (2) thus can normally be opened by rotation alone by coverlet.

Since when nature arc piece (3) together with lock core (2) can be in limited scope left-right rotation, if so lock core (2) is applied certain torsion (this is the inevitable feature that foreign matter is opened), arc piece (3) takes place to rotate in a small amount together with lock core (2), pellet shot from a slingshot (5) and middle pellet shot from a slingshot (6) are misplaced at once, thereby prevented that up hill and dale foreign matter from entering the attempt that lock core (2) is opened, unless carry out destructive picking lock behavior.

Better, the plug key is convenient when unblanking in order to make, can also increase the lock core detent mechanism: as shown in Figure 2, between lock body (1) and lock core (2) external surface, open a clear opening from running through sleeve (8) outside to inside, mounting spring in the hole (10) and steel ball (9) and outside lock body (1) end closure, simultaneously lock core (2) external surface is reserved a small rut and steel ball (9) and is matched lock core (2) is located in the corresponding position.

Described lock core detent mechanism can have one or more, and its position does not have additional limits.

Since the design on ingenious, so pellet shot from a slingshot of the present utility model only need adopt common round end pellet shot from a slingshot, lock core groove only need adopt straight trough, and is consistent with common lock, easy to process.Certainly,, can further increase the difficulty that sled is dialled, and if cooperate measures such as adopting other anti-drilling, anti-holders can obtain more satisfied anti-theft effect if adopt special-shaped pellet shot from a slingshot and special-shaped groove effect better.

Claims

1, a kind of anti-pulling pellet lock head, comprise lock core (2) and inner pellet shot from a slingshot and spring (4) thereof in lock body (1), the lock body, it is characterized in that: three row (5) (6) (7), described pellet shot from a slingshot branch upper, middle and lower, between lock body (1) and lock core (2), the notched open sleeve in a top (8) is arranged, it encases lock core (2) and is fixed with one with lock body (1), in the indentation, there of open sleeve (8) the adjustable arc piece (3) of an arc length less than breach is arranged; Described pellet shot from a slingshot concrete arrangement is: middle pellet shot from a slingshot (6) passes the round tube hole on the arc piece (3), and when nature, middle pellet shot from a slingshot (6) upper surface is just in time concordant with the mating face of lock body (1) with arc piece (3); And when key insertion lockhole was in unlocking condition, middle pellet shot from a slingshot (6) lower surface was just in time concordant with the mating face of lock core (2) with arc piece (3).

2, anti-pulling pellet lock head as claimed in claim 1 is characterized in that also comprising the lock core detent mechanism that is made of spring (10) and steel ball (9).