CN201258618Y - Blade marble lockset adopting milling tooth groove key - Google Patents

Abstract

The utility model discloses a blade pin lock adopting a milled tooth groove key, comprising a lock head and a matching key; the lock head comprises a lock body, a front lock core and a rear lock core in the lock body, the front lock core is provided with a blade pin group matched with a locking side column, wherein the middle part of one blade pin and the end part of another blade pin are respectively provided with a convex block extending into the key hole; the key matched with the lock head comprises a key piece, and an outer milled tooth groove and an inner milled tooth groove are respectively provided on the side and the middle part of one side of the key piece, and a tooth flower is provided on the side wall of an outer milled tooth groove and a side wall of the inner milled tooth groove. The lock can increase the key quantity and reduce the mutual opening rate, and has better anti-theft performance.

Description

Blade tumbler lock with milled groove key

technical field

The utility model belongs to mechanical locks, and relates to a blade pin lock which adopts a milling tooth 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.

Utility model content

The purpose of this utility model is to provide a kind of blade tumbler lock with milling groove key which can increase the number of keys and reduce the mutual opening rate in view of the above situation.

The utility model adopts the blade tumbler lock with the milling tooth groove key, including the 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 core, 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 supporting key can the whole locking side column move radially inward along the lock core, 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 utility model key 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 with the bumps on the blade pins respectively.

Since the lock head of the utility model is provided with a plurality of contact parts between the sliding block and the locking side column, the possibility of controlling the overall displacement of the locking side column (resulting in easy unlocking) is greatly reduced when using a non-matching key set. It is even almost zero, thereby greatly reducing the mutual opening rate of the lock and improving 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.

Further illustrate the utility model technical solution below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structural representation of lock head in the utility model.

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 utility model.

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

Detailed ways

See Fig. 1, Fig. 2, Fig. 3, the lock end of the present utility model 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 , which is provided with a group of blade pins consisting of two blade pins 13 and 15, 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 provided with keyholes 16 respectively. Inside the bumps 14, 19, 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 a blade pin return spring 17; the locking edge column groove on the front lock core 2 A locking side column 5 that can be matched with the V-shaped groove 18 on the blade pin is provided inside, and a slider chute 11 that communicates with the locking side column groove is set on the front lock core 2, and is connected with the front lock core on the rear lock core 12. The slider chute 11 is correspondingly provided with the lock pin chute 10, the lock pin 7 is placed in the lock pin chute 10, and the lock pin return spring 8 is set between the end wall in the lock pin chute 10 and the lock pin 7. There is a sliding block 4 radially matched with the locking side post 5 in the column groove, and two contact parts 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 column 5, and one end of the sliding block 4 is located in the sliding block chute 11 and contacts the lock pin 7 on the rear lock cylinder 12, and is used to stop the rear lock cylinder 12 at the tail of the lock body 1. 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 matching key with the lock head of the present utility model is shown in Fig. 6, and comprises a key piece 21, and the side and the middle part of one side of the key piece 21 are respectively provided with an outer milling tooth groove 24 and an inner milling tooth groove 25, and on the side of the outer milling tooth groove The wall 27 and a side wall 26 of the inner milling groove are provided with dental 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, at this moment, front lock core 2 is connected with rear lock core 12 by lock pin 7 and is integrated, relative lock body 1 can rotate.

The sliding block 4 and the locking side column 5 in the lock head of the utility model can be matched by using different contact parts, both of the two contact parts of the two can be contacted by inclined surfaces, as shown in Figure 7, or the contact parts One of them contacts the other with a slope, as shown in Figures 8 to 11.

Claims (2)

1. A 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, 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 adopting 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; There is a notch corresponding to the lock pin chute on the step used to stop the rear lock cylinder at the tail of the lock body, so that the lock pin in the lock pin chute can match 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. 2. According to claim 1, the blade tumbler lock adopting the milling groove key is characterized in that the contact part in the lock head is that both the sliding block and the locking side column are contacted by an inclined plane, or one of them is in contact with the inclined plane. Another touch.

Images