CN101333888B - Blade marble lockset adopting milling tooth groove key - Google Patents

Abstract

The invention discloses a blade marble lockset adopting a milling tooth groove key, which comprises a lock head and a key matched with the lock head; the lock head comprises a lock body, a front lock core and a rear lock core in the lock body, wherein the front lock core is provided with a blade marble group matched with the locking side column, and the middle part of one blade marble and the end part of the other blade marble are respectively provided with a lug extending into the key hole; the key matched with the lock head comprises a key sheet, an outer milling tooth groove and an inner milling tooth groove are respectively arranged on the side part and the middle part of one surface of the key sheet, and tooth patterns are arranged on the side wall of one outer milling tooth groove and one side wall of one inner milling tooth groove. The lockset can improve the key amount and reduce the mutual opening rate, and has better anti-theft performance.

Description

Blade tumbler lock with milled groove key

technical field

The invention belongs to a mechanical lock, and relates to a blade pin pin lock using a milled groove key.

Background technique

In the existing lockset, there is only one type of tooth groove on the key, or the tooth groove is located on the side of the key blade (outer milling tooth groove), or is located in the middle of the key blade (inner milling tooth groove), so that The key amount of the lock is limited, the mutual opening rate is increased, and the anti-theft performance is affected.

Contents of the invention

The object of the present invention is to address the above situation, to provide a blade tumbler lock using a milled groove key that can increase the amount of keys and reduce the inter-opening rate.

The 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 front lock cylinder and a rear lock cylinder in the lock body. The front lock cylinder is provided with a number of blade pin groups consisting of two blade pin pins along the axis, and is located in the blade pin pin groups on the same side. The middle part of one blade pin and the end of the other blade pin 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 corresponding blade pins are respectively set on the front lock cylinder. The return spring of the blade pins; the locking side column groove on the front lock cylinder is provided with a locking side column that can cooperate with the V-shaped groove on the blade pin and a slider chute that communicates with the locking side column groove; A lock pin is provided in the lock pin chute corresponding to the slider chute of the front lock cylinder, and a lock pin return spring is provided between the lock pin and the lock pin chute; a radial and locking side post is provided in the locking side post groove. As for the matching sliding block, at least two contact parts using inclined surfaces are arranged between the sliding block and the locking side column along the axial direction of the lock cylinder, and one end of the sliding block is located in the slide groove of the sliding block and contacts the lock pin on the rear lock cylinder; A notch is correspondingly provided with the lock pin chute on the step which is used to stop the rear lock cylinder at the tail end of the lock body, so that the lock pin in the lock pin chute can cooperate with the notch.

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.

Further technical solutions are:

The contact portion in the lock head is that both the sliding block and the locking side column are in contact with an inclined plane, or one of them is in contact with the other through an inclined plane.

In this lock head, the slope contact part provided between the sliding block and the locking side post is actually to set a plurality of limit parts on the locking side post to limit the movement of the sliding block along the axial direction of the lock cylinder. Only when the limiting parts are displaced simultaneously can the restriction on the axial movement of the sliding block be released. When a non-matching key set is used to lock, even if some key teeth match with the blade pins, the corresponding part of the locking side column will move radially inward along the lock cylinder, and a limit part on the locking side column will release the sliding block shaft. However, due to the limitation of another limiting part, the sliding block still cannot move axially along the lock cylinder and cannot unlock. Only with the matching key can the whole locking side column move radially inward along the lock cylinder, and all the limit parts on the locking side column can release the restriction on the axial movement of the sliding block at the same time, so as to realize normal unlocking. In the contact portion between the sliding block and the locking side post, at least one of them is in contact with the other using an inclined surface, the movement of the sliding block along the axial direction of the lock cylinder can be controlled by controlling the radial movement of the locking side post along the lock cylinder.

The key of the present invention realizes unlocking by controlling the orderly arrangement of the blade pins by cooperating the outer milling tooth grooves and the inner milling tooth grooves on the key piece respectively with the protrusions on the blade pins.

Because the lock head of the present invention is provided with a plurality of contact parts between the sliding block and the locking side post, when using a non-matching key set, the possibility of controlling the overall displacement of the locking side post (causing easy unlocking) is greatly reduced, even It is almost zero, which greatly reduces the mutual opening rate of the lock and improves the security. And because the adopted key is provided with the outer milling tooth groove and the inner milling tooth groove at the same time, the key amount of the lock is further improved and the mutual opening rate is reduced, so that the lock has better anti-theft performance.

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic structural view of a lock head in the present invention.

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

Fig. 3 is a schematic diagram of the lock cylinder in the lock head of the present invention.

Fig. 4 and Fig. 5 are schematic diagrams of different usage states of Fig. 1 and Fig. 2 .

Fig. 6 is a schematic diagram of the key in the present invention.

Fig. 7 to Fig. 11 are schematic diagrams of cooperation between sliding blocks and locking side columns of different structures in the present invention.

Detailed ways

See Fig. 1, Fig. 2, Fig. 3, lock end of the present invention comprises lock body 1, front lock core 2 and rear lock core 12 in lock body 1, and front lock core 2 is provided with several blade pinholes 20 along the axis, It is provided with a group of blade pins consisting of two blade pins 13 and 15, and the ends of the blade pins 13 and the middle part of the blade pins 15 in the vane pins on the same side are respectively provided with keys extending into the keyhole 16. The other side of each blade pin is provided with a V-shaped groove 18, and the corresponding blade pins on the front lock core 2 are respectively provided with blade pin reset springs 17; Be provided with the locking side column 5 that can cooperate with V-shaped groove 18 on the pin pin of the blade, the slider chute 11 that communicates with the locking side column groove is set on the front lock core 2, and slide with the front lock core on the rear lock core 12. The block chute 11 is correspondingly provided with the lock pin chute 10, the lock pin 7 is placed in the lock pin chute 10, the lock pin return spring 8 is set between the end wall in the lock pin chute 10 and the lock pin 7, and the locking side column The groove is provided with a sliding block 4 that is radially matched with the locking side post 5, and two contact portions are arranged between the sliding block 4 and the locking side post 5 along the axial direction of the lock cylinder. 6 is in contact with the locking side post 5, and one end of the sliding block 4 is located in the sliding block chute 11 and is in contact with the lock pin 7 on the rear lock cylinder 12, on the step at the tail of the lock body 1 for stopping the rear lock cylinder 12 A notch 9 is opened corresponding to the lock pin chute 10, so that the lock pin 7 in the lock pin chute 10 can cooperate with the notch 9.

The supporting key with lock head of the present invention is shown in Fig. 6, comprises key blade 21, is respectively provided with outer milling tooth groove 24 and inner milling tooth groove 25 in the side and middle part of one side of key blade 21, and the sidewall of outer milling tooth groove 27 and a side wall 26 of the inner milling tooth groove are provided with tooth flowers.

Figure 1 and Figure 2 show the state when the lock head is locked. The V-shaped groove 18 on the blade pins in the front lock cylinder 2 is not in a straight line, and the locking side column 5 is radially pushed outward by the blade pins, which is consistent with the locking The sliding block 4 and the lock pin 7 that the side column 5 contacts overcome the back-moving spring 8 so that the contact surface 22 of the two is in the position that overlaps with the front and back two lock cores 2, 12 contact surfaces 23, and the end of the lock pin 7 is in the same position as The position that the gap 9 on the lock body afterbody step matches, at this moment, the relative rear lock core 12 of front lock core 2 can idle, and the rear lock core 12 is connected with lock body 1 by lock pin 7 and cannot rotate, and the lock can not be opened. When unlocking, see Figure 4 and Figure 5, the key is inserted into the front lock cylinder 2, and the key matches the bump on the blade pin through the external milling grooves on the key blade 21 and the tooth patterns on the internal milling grooves, forcing the front lock The V-shaped grooves on the pins of each group of blades in the core 2 are aligned, and under the action of the lock pin return spring, the lock pin and the sliding block move inwardly along the axial direction of the lock core, and at the same time pass through the contact part of the sliding block and the locking side column ( The inclined surfaces 3 and 6) on the sliding block press the locking side post radially inwardly into the V-shaped groove of the blade pin along the lock core, and the contact surface 22 between the lock pin and the sliding block is at the position in the front lock core 2, and The end of lock pin is in the position that breaks away from the breach on the step of lock body afterbody, and at this moment, front lock core 2 is connected with rear lock core 12 by lock pin 7, and relative lock body 1 can rotate.

The sliding block 4 in the lock head of the present invention and the locking side column 5 can be matched by using different contact parts, either two contact parts of the two can be contacted by inclined surfaces, as shown in Figure 7, or it can be in the contact part One contacts the other using a ramp, as shown in Figures 8 to 11.

Claims (2)

1. a blade marble lockset that adopts milling teeth groove key comprises tapered end and supporting key thereof, it is characterized in that:

Described tapered end comprises preceding lock core and the rear lock core in lock body, the lock body, before lock core upper edge axis to be provided with some be one group blade marble group by two blade marbles, be arranged in the middle part of blade marble group one blade marble of homonymy and the end of another blade marble and be respectively equipped with the projection that extend into keyhole, the opposite side of each blade marble is provided with v-depression, and corresponding each blade marble is provided with the blade marble back-moving spring respectively on the preceding lock core; Before be provided with the locking side column that can match with v-depression on the blade marble, the slide block chute that communicates with the locking side column groove in the locking side column groove on the lock core; Be provided with lock pin in the lock pin chute corresponding on the rear lock core, between lock pin and lock pin chute, be provided with the lock pin back-moving spring with preceding lock core slide block chute; In the locking side column groove, be provided with the sliding shoe that radially matches with locking side column, between sliding shoe and the locking side column along lock core shaft to the contact site that two places adopt the inclined-plane is set at least, an end of sliding shoe is positioned at the slide block chute and contacts with lock pin on the rear lock core; The corresponding breach that has with the lock pin chute on the lock body afterbody is used for the step of rear lock core stop bit can match the lock pin in the lock pin chute with this breach;

Described and the supporting key case spatula sheet of tapered end, mill teeth groove and interior mill teeth groove outside the sidepiece of the one side of spoon sheet and middle part are respectively equipped with are provided with tartar on the sidewall of the sidewall of mill teeth groove and interior mill teeth groove outside one.

2. the blade marble lockset of employing milling teeth groove key according to claim 1 is characterized in that the contact site in the described tapered end is all to adopt the inclined-plane contact between sliding shoe and the locking side column, and perhaps one of them adopts the inclined-plane to contact with another.

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