CN101403261B - Improved blade marble lockset adopting milling tooth groove key - Google Patents

Abstract

The invention discloses an improved blade marble lockset adopting a milling tooth groove key, which comprises a lock head and a key matched with the lock head, wherein the lock head comprises a lock body, a plurality of blade marble groups are arranged on a lock core in the lock body along the axial direction, and the middle part of one blade marble and the end part of the other blade marble in the blade marble groups positioned on the same side are respectively provided with a convex block extending into a key hole; the lock core is provided with a locking side column which can be matched with the V-shaped groove on the blade; the lock body is provided with a through spiral groove, and the lock core is provided with a protruding part matched with the spiral groove on the lock body; the key comprises a key piece, and an external milling tooth groove and an internal milling tooth groove are respectively arranged on the side part and the middle part of one surface of the key piece. The lock head of the invention is characterized in that the lock head can use an internal and external milling tooth groove key with a structure different from that of a common key, thereby improving the key amount of the lock and reducing the mutual unlocking rate, so that the lock has better anti-theft performance, and the lock tongue can be controlled along the axis of the lock core.

Description

An Improved Blade Pin Lock Using a Milled Groove Key

technical field

The invention belongs to locks, and in particular relates to an improved blade pin lock using a milled groove key.

Background technique

Among the existing locks, there is a kind of lock that utilizes blades to cooperate with locking side columns to lock. The lock includes a lock body and a lock core in the lock body. The lock core is provided with a locking side column that matches the V-shaped groove on the blade. The blade in this lock can only be used with an ordinary key. There is only one form of tooth groove, or the tooth groove is set on the side of the key blade (external milling tooth groove), or it is set in the middle of the key blade (internal milling tooth groove), so that the key quantity of the lock is limited, The mutual opening rate is relatively high, and the anti-theft performance is affected. In addition, in the unlocked state, the lock cylinder only rotates on the circumference relative to the lock body, and the lock is opened through the linkage between the lock ruler fixed at the tail of the lock cylinder and the lock tongue. Such lock cylinders cannot be used for locks that control the deadbolt along the axis of the cylinder.

Contents of the invention

The object of the present invention is to provide an improved blade pin lock using a milled groove key which can increase the amount of keys and reduce the mutual opening rate, and which can control the lock tongue along the axis of the lock cylinder.

The technical solution to realize the purpose of the present invention is: the improved blade tumbler lock adopting the milling groove key of the present invention includes a lock head and its matching key; the lock head includes a lock body, a lock core in the lock body, and Along the axial direction, there are a number of blade pin groups consisting of two blade pin pins. In the vane pin pin groups on the same side, the middle part of one pin pin and the end of the other pin pin are respectively provided with holes extending into the keyhole. The other side of each blade pin is provided with a V-shaped groove, and the blade pin return spring is respectively provided on the front lock core corresponding to each blade pin; The locking side column matched with the V-shaped groove on the blade has a stopper on the lock cylinder, and a locking side column reset elastic device is provided between the stopper and the locking side column. The body is provided with grooves corresponding to the locking side column grooves on the lock cylinder; the lock body is provided with through spiral grooves, and the lock cylinder is provided with protruding parts matching the spiral grooves on the lock body;

The key matched with the lock head includes a key piece, and the side and middle of one side of the key piece are respectively provided with an external milling tooth groove and an internal milling tooth groove, and on the side wall of an external milling tooth groove and the inner milling tooth groove There is tooth flower on one side wall.

The elastic device for restoring the locking side post is to arrange a spring between the lock cylinder stopper and the locking side post, and a magnetic block with the same polarity can also be correspondingly arranged between the lock cylinder stopper and the locking side post.

The feature of the present invention is that it can use the internal and external milling tooth groove key which is different from the ordinary key structure, because the adopted key is equipped with the external milling tooth groove and the internal milling tooth groove at the same time, the key quantity of the lock is improved and the mutual opening rate is reduced , so that the lock has better anti-theft performance. Since the lock core is provided with a protruding part that matches the spiral groove on the lock body, when the key is inserted to unlock the lock, the protruding part on the lock core will move along the spiral groove on the lock body during the process of turning the lock core, making the lock core While making circular movement relative to the lock body, it also makes axial movement, and only needs to rotate the lock cylinder in the opposite direction when locking. The lock head of the present invention utilizes the axial movement of the lock cylinder to achieve the purpose of axially controlling the dead bolt, so it can be used in locksets for such occasions.

The present invention will be further described below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the schematic diagram of the lock head of the present invention.

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

Fig. 3 and Fig. 4 are schematic diagrams of different states of Fig. 1 and Fig. 2 respectively.

FIG. 5 is an external view of FIG. 3 .

FIG. 6 is a schematic diagram of different states of FIG. 5 .

Fig. 7 is a schematic diagram of a key matched with the lock head of the present invention.

Fig. 8 is a schematic diagram of different structures of the lock head of the present invention.

FIG. 9 is a schematic diagram of different states of FIG. 8 .

Detailed ways

Example 1

See Fig. 1, Fig. 2, Fig. 5, the lock end of the present invention comprises lock body 1, the lock core 2 in lock body 1, and lock core 2 is provided with a plurality of blade pinholes 11 horizontally along the axial direction, and blade pinholes 11 communicates with the key hole 9 arranged in the axial direction; each blade pin hole 11 is provided with two blade pins 6, 16 stacked as a group, the middle part of the blade pins 16 and the blade pins 6 in the blade pin group on the same side The ends of the keyholes are respectively provided with projections 8, 10 extending into the key holes, and the other sides of the blade pins 6, 16 are respectively provided with V-shaped grooves 7, and the lock core 2 corresponds to the blade pins 6, 10 in each group. 16 is relatively provided with blade return springs 5 and 12 respectively; lock cylinder 2 is provided with locking side post groove 3, and locking side post groove 3 is provided with locking side post which can cooperate with V-shaped groove 7 on blade pins 6 and 16 4. A stopper 14 is provided on the notch of the locking side column groove of the lock cylinder, and a locking side column return spring 15 is provided in the corresponding groove 13 on the stopper 14 and the locking side column 4, and the tail of the lock cylinder 2 is provided with a There is a lock bar 19, the lock body 1 is provided with a groove 17 corresponding to the locking side column groove 3 on the lock core 2 (see Figure 3), the lock body 1 is provided with a through spiral groove 21, and the lock core 2 is provided with a groove 17 (see Figure 3). There is a pin 20 matched with the helical groove 21 on the lock body.

The supporting key of the lock head of the present invention is shown in Fig. 7, and comprises a key piece 18, and the side and the middle part of one side of the key piece 18 are respectively provided with an outer milling tooth groove 25 and an inner milling tooth groove 22, and the side wall of the outer milling tooth groove is 24 and a side wall 23 of the inner milling tooth groove are provided with tooth flowers.

working principle

See Fig. 3, Fig. 4, Fig. 5, when the key blade 18 is inserted into the lock cylinder, the tooth patterns on the side walls of the outer milling tooth groove and the inner milling tooth groove on the key blade 18 are respectively connected with the protrusions on the blade pins 6 and 16. 10 and 8 cooperate to force the V-shaped grooves on each group of blade pins in the lock cylinder 2 to align, and under the action of the return spring 15, one side of the locking side column 4 enters the V-shaped groove 7 of the blade, and the other side Back in the lock cylinder 2 from the groove 17 on the lock body, at this moment the lock cylinder 2 can rotate relative to the lock body 1 to become an unlocked state, when the key blade 18 rotates the lock cylinder 2 in the direction of the arrow (see Figure 6), the lock cylinder The pin 20 on the 2 moves along the spiral groove 21 on the lock body, so that the lock core 2 moves to the right along the axis at the same time, and the lock bar 19 that is located on the lock core 2 to control the dead bolt returns to the lock body. When locking, use The key rotates the lock cylinder in the opposite direction so that the lock bar 19 can be stretched out of the lock body to limit the dead bolt; Reset, the V-shaped groove 7 on the blade pins forces the locking side column 4 to withdraw from the V-shaped groove when resetting, and at the same time makes the other side of the locking side column 4 extend into the groove 17 of the lock body. The lock core 2 is integrated with the lock body 1, and at this moment the lock core 2 cannot rotate relative to the lock body 1 to become a locked state (see Fig. 1 and Fig. 2).

Example 2

As shown in Figure 8, a magnetic block 26 can also be set on the notch of the locking side column groove on the lock cylinder, and a magnetic block 27 with the same polarity as the magnetic block 26 is correspondingly arranged in the groove on the locking side column, Utilize the repulsive force between the magnetic block 26 and the magnetic block 27 to make the locking side column return (see FIG. 9 ). Other structures are the same as in Example 1.

Claims (2)

1. An improved blade tumbler lock using a milled groove key, including a lock head and a matching key, characterized in that: The lock head includes a lock body and a lock cylinder in the lock body. A plurality of blade pin groups consisting of two blade pin pins are arranged in the axial direction on the lock core. and the ends of the other blade pins are respectively provided with protrusions extending into the keyhole, and the other side of each blade pin is provided with a V-shaped groove, and the blade pin return springs are respectively set on the lock core corresponding to each blade pin; There is a locking side column groove on the core, and a locking side column that can be matched with the V-shaped groove on the blade is arranged in the locking side column groove, a stopper is provided on the lock core, and a There is an elastic device for resetting the locking side column, a lock rod is provided at the end of the lock cylinder, and a groove is provided on the lock body corresponding to the locking side column groove on the lock cylinder; a through spiral groove is provided on the lock body, and a A protruding part that matches the helical groove on the lock body; The key matched with the lock head includes a key piece, and the side and middle of one side of the key piece are respectively provided with an external milling tooth groove and an internal milling tooth groove, and on the side wall of an external milling tooth groove and the inner milling tooth groove There is tooth flower on one side wall. 2. The improved blade tumbler lock using a milled groove key according to claim 1, characterized in that the elastic device for restoring the locking side column is a spring arranged between the lock cylinder and the locking side column, or a spring is set between the lock cylinder and the locking side column. Magnetic blocks with the same polarity are correspondingly arranged between the locking side posts.

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