CN201241510Y

CN201241510Y - T-shaped anti-theft lock and key thereof

Info

Publication number: CN201241510Y
Application number: CNU2008201621945U
Authority: CN
Inventors: 于学文
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-05
Filing date: 2008-08-05
Publication date: 2009-05-20
Anticipated expiration: 2018-08-05

Abstract

The utility model discloses a T-shaped anti-theft lock cylinder and a key thereof, comprising a cylindrical lock cylinder shaft connected with a locking bolt, a lock cylinder outer ring is sleeved outside the lock cylinder shaft, the center of the lock cylinder shaft is manufactured with a key hole of a T-shaped groove, pins and springs are radially mounted between the lock cylinder outer ring and the lock cylinder shaft, the pins and the springs correspond to the T-shaped groove, wherein at least two rows of corresponding lock cylinder shaft pins and springs are arranged, middle-row pins and springs are perpendicularly arranged between the two rows of corresponding lock cylinder shaft pins and springs, the middle-row pins at the most front end are embedded between the two rows of lock cylinder shaft pins. The key of the T-shaped anti-theft lock cylinder has a T-shaped key pin which is engaged with the key hole, the rear end of the key pin is manufactured with a key handle, a plurality of gaps which are in unlocking state with the lock cylinder shaft pins and a plurality of concave pits which are in unlocking state with the middle-row pins are manufactured on the key pin, and an oblique surface which enables the middle-row pins to retract inwardly is manufactured on the front end of the key pin. The utility model is reliable in structure, convenient in manufacturing and fine in anti-theft property.

Description

T font anti-theft lock and key thereof

Technical field

The utility model relates to a kind of mechanical lock, relates in particular to T font anti-theft lock and opens its key.

Background technology

Lock is a kind of device that is used for shutter or holder.Lock generally comprises several parts such as lock housing, lock core and dead bolt, and lock core is the vitals that guarantees lock safety.

Present widely used conventional lock cylinders, particularly columniform lock cylinder, usually by a lock core shaft that axially has a keyhole and the lock core outer ring that matches with the external diameter of described lock core shaft, and be arranged on the radial holes that number row on lock core shaft and the lock core outer ring opposite position is loaded with a plurality of pellets shot from a slingshot and spring and constitute.When unblanking, be inserted in the keyhole with the special key of opening this lock, the zigzag on the key limit promotes pellet shot from a slingshot, allows the docking site of adjacent two pellets shot from a slingshot in each radial hole on the external diameter periphery of lock core shaft.When key inserts keyhole, but promptly be in unlocking condition, during key, lock core shaft rotated, drive the dead bolt that is connected in the lock housing with lock core shaft simultaneously and stretch out or the indentation lock housing, make lockset that the function of pinning and opening be arranged.Such lock core structure is fairly simple, people are more thorough to its research, open difficulty although have the cross lock core to wait to attempt to increase, the thief still can just can easily open in a short period of time by iron wire etc., so this type of lock core theftproof performance is poor.

The utility model content

The utility model provides a kind of reliable in structure, and is easily manufactured, T font anti-theft lock and key thereof that theftproof performance is good.

In order to achieve the above object, of the present utility model being achieved through the following technical solutions: comprise the columniform lock core shaft that is connected with dead bolt, be with the lock core outer ring in the lock core shaft outside, the center of lock core shaft is shaped on the keyhole of T font groove, pellet shot from a slingshot and spring radially are installed between lock core outer ring and the lock core shaft, pellet shot from a slingshot is relative with T font groove with spring, wherein have two relative row's lock core shaft's pellet shot from a slingshot and springs at least, it is characterized in that with row's pellet shot from a slingshot and spring in the middle of relative two row's lock core shaft's pellets shot from a slingshot and spring intermediate vertical are furnished with, foremost in the middle of row's pellet shot from a slingshot be embedded in the centres of two row lock core shaft pellets shot from a slingshot.

Be used to open the key of T font anti-theft lock as mentioned above, it has the key pin that matches and be the T font with keyhole, the rear end of key pin is shaped on the shank of the key, it is characterized in that being shaped on the key pin with the lock core shaft pellet shot from a slingshot and be in a plurality of short slots of unlocking condition and be in the pit of unlocking condition with middle row's pellet shot from a slingshot, the front end of key pin be shaped on make in the middle of the inclined-plane of the inside indentation of row's pellet shot from a slingshot.

Described T font anti-theft lock, can also have groove at the tail end of lock core shaft, interior key piece is installed in the groove, interior key piece can move axially in lock core shaft, the rear end of interior key piece is equipped with the compression spring, the left and right sides of interior key piece is shaped on breach, be with the corresponding lock core shaft of breach on be shaped on circumferential slot, on the lock core outer ring, be provided with the pin that stretches into circumferential slot, when moving on to breach behind the interior key piece when aliging with circumferential slot, lock core shaft can rotate smoothly, and lock core shaft can not rotate otherwise pin is interfered with interior key piece.

Be used to open T font anti-theft lock as mentioned above, except above-mentioned Key structure was arranged, the length of pin is very good withstood interior key piece, moves on to breach and circumferential slot positions aligning behind the key piece in making.

According to T font anti-theft lock and key thereof that such scheme is made, though see it is that T shape is also simpler than cross bore from keyhole, middle row's pellet shot from a slingshot foremost is embedded in the centres of two row lock core shaft pellets shot from a slingshot.Row's pellet shot from a slingshot retreats in the middle of must making earlier when the unlatching of lock, could mobile lock core shaft pellet shot from a slingshot, the thief is difficult to by adjustments lock core shaft pellet shot from a slingshot such as iron wire and middlely arranges the enable possition that pellet shot from a slingshot and interior key piece all are in lock, opens in the short period of time and contracts.Its structure and traditional mechanical lock have bigger difference, and its theftproof performance is more superior.Simultaneously various parts can grouping and batch production, adopt different combine and assemble to become T font anti-theft lock, so its manufacturing is very convenient again, has the advantage of production in enormous quantities.Be expected to become the regeneration product that is extensive use of lock cylinder at present.It uses promotion prospect boundless.

Description of drawings

Fig. 1 is a T font anti-theft lock front view in off position;

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

Fig. 3 is that the F of Fig. 1 is to view;

Fig. 4 is the B-B sectional view of Fig. 1;

Fig. 5 is the front view of key;

Fig. 6 is Fig. 5 left side front view;

Fig. 7 is a front view behind Fig. 5;

Fig. 8 is inserted with the front view of key in opening in the T font anti-theft lock;

Fig. 9 is the C-C sectional view of Fig. 8.

Among the figure: 1, lock core shaft; 2, lock core outer ring; 3, jump ring; 4, T font groove; 5, keyhole; 6, pellet shot from a slingshot and spring; 7, lock core shaft's pellet shot from a slingshot and spring; 8, middle row's pellet shot from a slingshot and spring; 9, middle row's pellet shot from a slingshot; 10, lock core shaft's pellet shot from a slingshot; 11, groove; 12, interior key piece; 13, connecting rod; 14, compression spring; 15, breach; 16, circumferential slot; 17, pin; 18, key; 19, key pin; 20, the shank of the key; 21, short slot; 22, pit; 23, inclined-plane.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, comprise the columniform lock core shaft 1 that is connected with dead bolt, be with lock core outer ring 2 in lock core shaft 1 outside, and through jump ring 3 at axial restraint.The keyhole 5 that the center of lock core shaft 1 is shaped on T font groove 4 as shown in Figure 3, pellet shot from a slingshot and spring 6 radially are installed between lock core outer ring 2 and the lock core shaft 1, pellet shot from a slingshot is relative with T font groove 4 with spring 6, wherein have two relative row's lock core shaft's pellet shot from a slingshot and springs 7 at least, with row's pellet shot from a slingshot and spring 8 in the middle of relative two row's lock core shaft's pellets shot from a slingshot and spring 7 intermediate vertical are furnished with, foremost in the middle of row's pellet shot from a slingshot 9 be embedded in two row lock core shaft pellets shot from a slingshot 10 the centre as shown in Figure 4.Tail end in lock core shaft 1 has groove 11, key piece 12 in being equipped with in the groove 11, interior key piece 12 can move axially in lock core shaft 1, the rear end of interior key piece 12 is equipped with the connecting rod 13 that is connected with dead bolt, the shape of connecting rod 13 can design according to the structure of difference lock, be fixed in the lock core shaft 1 by jump ring 3, compression spring 14 is installed between the rear end of interior key piece 12 and the connecting rod 13, the left and right sides of interior key piece 12 is shaped on breach 15, be with breach 15 corresponding lock core shafts 1 on be shaped on circumferential slot 16, on lock core outer ring 2, be provided with the pin 17 that stretches into circumferential slot 16, when moving on to breach 15 behind the interior key piece 12 when aliging with circumferential slot 16, lock core shaft 1 can rotate smoothly, interferes with interior key piece 12 and lock core shaft 1 can not rotate otherwise sell 17, promptly can not unblank.

The key 18 that is used to open T font anti-theft lock as mentioned above is as Fig. 5, Fig. 6, shown in Figure 7, it has the key pin 19 that matches and be the T font with keyhole 5, the rear end of key pin 19 is shaped on the shank of the key 20, on key pin 19, be shaped on lock core shaft pellet shot from a slingshot 10 and be in a plurality of short slots 21 of unlocking condition and be in the pit 22 of unlocking condition with middle row's pellet shot from a slingshot 9, the front end of key pin 19 be shaped on make in the middle of the inclined-plane 23 of row's pellet shot from a slingshot 9 inside indentations.The length of pin 19 is very good withstand in key piece 12, move on to breach 15 and circumferential slot 16 positions aligning in making behind the key piece 12, the head of pin 17 is in breach 15 and circumferential slot 16, and this moment, lock core shaft 1 can rotate smoothly by key 18, realizes unblanking as Fig. 8, shown in Figure 9.

Claims

1, T font anti-theft lock, comprise the columniform lock core shaft that is connected with dead bolt, be with the lock core outer ring in the lock core shaft outside, the center of lock core shaft is shaped on the keyhole of T font groove, pellet shot from a slingshot and spring radially are installed between lock core outer ring and the lock core shaft, pellet shot from a slingshot is relative with T font groove with spring, wherein have two relative row's lock core shaft's pellet shot from a slingshot and springs at least, it is characterized in that with row's pellet shot from a slingshot and spring in the middle of relative two row's lock core shaft's pellets shot from a slingshot and spring intermediate vertical are furnished with, foremost in the middle of row's pellet shot from a slingshot be embedded in the centres of two row lock core shaft pellets shot from a slingshot.

2, T font anti-theft lock according to claim 1, it is characterized in that having groove at the tail end of lock core shaft, interior key piece is installed in the groove, interior key piece can move axially in lock core shaft, the rear end of interior key piece is equipped with the compression spring, the left and right sides of interior key piece is shaped on breach, be with the corresponding lock core shaft of breach on be shaped on circumferential slot, on the lock core outer ring, be provided with the pin that stretches into circumferential slot, when moving on to breach behind the interior key piece when aliging with circumferential slot, lock core shaft can rotate smoothly, and lock core shaft can not rotate otherwise pin is interfered with interior key piece.

3, a kind ofly be used to open the key of T font anti-theft lock according to claim 1, it has the key pin that matches and be the T font with keyhole, the rear end of key pin is shaped on the shank of the key, it is characterized in that being shaped on the key pin with the lock core shaft pellet shot from a slingshot and be in a plurality of short slots of unlocking condition and be in the pit of unlocking condition with middle row's pellet shot from a slingshot, the front end of key pin be shaped on make in the middle of the inclined-plane of the inside indentation of row's pellet shot from a slingshot.

4, a kind of key that is used to open as T font anti-theft lock as described in the claim 2, it has the key pin that matches and be the T font with keyhole, the rear end of key pin is shaped on the shank of the key, it is characterized in that being shaped on the key pin with the lock core shaft pellet shot from a slingshot and be in a plurality of short slots of unlocking condition and be in the pit of unlocking condition with middle row's pellet shot from a slingshot, the front end of key pin be shaped on make in the middle of row's pellet shot from a slingshot mutually in the inclined-plane of indentation, it is characterized in that the length of pin is very good withstands interior key piece, moves on to breach and circumferential slot positions aligning behind the key piece in making.