CN201649836U - Anti-theft spring lock cylinder - Google Patents

Abstract

The utility model discloses an anti-theft spring lock cylinder, which comprises a lock cylinder sleeve and a lock cylinder in the lock cylinder sleeve. A positioning shell is arranged between the lock cylinder sleeve and the lock cylinder. The lock cylinder is provided with a key groove. The bottom of the key groove is provided with a plurality of spring grooves. Both sides of the lock cylinder are provided with side grooves. The rear end of the lock cylinder is provided with a rotating shaft fixed with the lock cylinder. The tail end of the rotating shaft is provided with a transverse pin. The rotating shaft is sleeved with a return spring. A baffle is arranged between the return spring and the transverse pin. The positioning shell is provided with tooth blade holes corresponding to the side grooves. The lock cylinder and the positioning shell are inserted mutually by tooth blades inserted into the tooth blade holes and the side grooves. The outer end of the rotating shaft is also provided with a drive ring. The middle of the drive ring is provided with a hole in fit with the rotating shaft. The edge of the hole is provided with a notch in fit with the transverse pin. Springs are arranged in the spring grooves. Baffle plates are arranged on the springs. The middle parts outside the baffle plates are provided with recesses. The anti-theft spring lock cylinder has good anti-theft performance and a key can be pulled out at any position.

Description

Anti-theft spring lock core

Technical field

The utility model relates to the lock core in the lockset, especially a kind of anti-theft lock.

Background technology

At present, mostly the existing mechanical lock is that rotating shaft and the lock core body in the lock core locks with the two row or multi-row pellet shot from a slingshot, use the key that is complementary with it to insert keyhole, make the end of respectively arranging pellet shot from a slingshot consistent with the periphery of each rotating shaft, key, rotating shaft is rotated and is driven the shifting block rotation of unblanking, and the shifting block of unblanking drives lockset, to reach the purpose of unblanking; Thereby existing these lock cylinders are all gone up by rotational lock core and are reached the purpose of unblanking, this lock core can reach under destroyed unblanks, theftproof performance is good inadequately, and key must be that lock core forwards certain position to and just can extract, can damage lock core or key if extract by force at correspondence position not, therefore, very inconvenient old man, child draw back key, the jammed phenomenon of key can occur.

The utility model content

The utility model purpose is to provide the anti-theft spring lock core that a kind of theftproof performance is good, key can be extracted in the optional position.

For achieving the above object, the technical solution adopted in the utility model is: a kind of anti-theft spring lock core comprises the lock core in lock core cover and the lock core cover, between lock core cover and lock core, be provided with the location shell, have key above the described lock core, be provided with a plurality of bullet groove in the bottom of key, be provided with the limit groove in the both sides of lock core, the rear end of lock core is provided with the fixing rotating shaft of lock core, the end of rotating shaft is provided with the horizontal tip, in rotating shaft, be with position, back spring, between the back position spring and the horizontal tip, be provided with baffle plate, described location shell is provided with the gear piece hole corresponding with the limit groove, pass through to insert the gear piece hole between described lock core and the location shell, the gear piece of limit groove is pegged graft together, and the transmission circle also is housed on the outer end of rotating shaft, has the hole that adapts with rotating shaft in the middle of the described transmission circle, have the breach that adapts with the horizontal tip at the edge in hole, spring is housed in bullet groove, is placed with catch above the spring, the outer middle side part of catch is provided with recess.

Described recess is not of uniform size to be caused, and is complementary with different key.

After the utility model adopts said structure, by between lock core cover and lock core, the location shell being set, on lock core, have key, be provided with a plurality of bullet groove in the bottom of key, be provided with the limit groove in the both sides of lock core, the rear end of lock core is extended with rotating shaft, the end of rotating shaft is provided with the horizontal tip, in rotating shaft, be with the back pressing spring, be provided with baffle plate between the back pressing spring and the horizontal tip, described location shell is provided with the gear piece hole corresponding with the limit groove, passes through to insert the gear piece hole between described lock core and the location shell, the gear piece of limit groove is pegged graft together, the transmission circle also is housed on the outer end of rotating shaft, have the hole that adapts with rotating shaft in the middle of the described transmission circle, have the breach that adapts with the horizontal tip, spring is housed in bullet groove at the edge in hole, be placed with catch above the spring, the outer middle side part of catch is provided with recess.So the gear piece by both sides can act on the lock core catch, the key that insertion is complementary, depress catch, when the recess of all catch during at a straight line, the pressing spring effect promotes lock core forward forward behind the lock core, the horizontal tip of lock core rear end blocks to the indentation, there of transmission circle forward, and key just drives the transmission bar external with the transmission circle, and rotation is unblanked; Behind lock core, push back prosposition, extract key, catch upwards resets, recess is not at same straight line, every catch of the corresponding lock core in the gear piece tooth position on both sides blocks lock core can not be forward, after lock core pushes back, the horizontal tip of lock core rear end also leaves the breach position of transmission circle, at this moment, and rotational lock core, because the horizontal tip of lock core rear end leaves the breach position of transmission circle, be that lock core separates with the transmission circle, become two parts that do not link, lock core freely rotates but can not drive the transmission circle, the lock body that is connected with the transmission bar keeps original unlatching or closed condition, at this moment, key can 360 degree freely extract lock core, solved traditional locks and need forward certain position to and just can extract key, make things convenient for the old man, children etc. are easily going out key, have avoided occurring card spoon phenomenon and have forced to extract the problem that key damages lock core at correspondence position not; Be in closed condition when locking in addition, if shakedown lock core, the horizontal tip of lock core rear end is easy to destroyed disconnection, the horizontal tip of lock core rear end leaves the breach position of transmission circle at this moment, and promptly lock core separates with the transmission circle, becomes two parts that do not link, lock core freely rotates but can not drive the transmission circle, the lock body that is connected with the transmission bar keeps original closed condition, plays good antitheft effect, so theftproof performance is good.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is the utility model exploded view.

Among the figure: 1 lock core cover, 2 lock cores, 21 key, 22 bullet groove, 23 limit grooves, 24 rotating shafts, the 25 horizontal tips, 26 back pressing springs, 27 baffle plates, 3 location shells, 31 gear piece holes, 4 gear pieces, 41 teeth, 5 transmission circles, 51 holes, 52 breach, 6 springs, 7 catch, 71 recess, 8 glands.

The specific embodiment

Shown in Figure 1, anti-theft spring lock core of the present utility model comprises lock core cover 1, location shell 3 between lock core 2 in the lock core cover 1 and lock core cover 1 and the lock core 2, have key 21 above the lock core 2, be provided with two row's bullet groove 22 in the bottom of key 21, be provided with limit groove 23 in the both sides of lock core 2, the rear end of lock core 2 is provided with the rotating shaft 24 of fixedlying connected with lock core 2, the end of rotating shaft 24 is provided with the horizontal tip 25, in rotating shaft 24, be with back pressing spring 26, between the back pressing spring 26 and the horizontal tip 25, be provided with baffle plate 27, described location shell 3 is provided with the gear piece hole 31 corresponding with limit groove 23, pass through to insert gear piece hole 31 between described lock core 2 and the location shell 3, the gear piece 4 of limit groove 23 is pegged graft together, transmission circle 5 also is housed on the outer end of rotating shaft 24, have the hole 51 that adapts with rotating shaft in the middle of this transmission circle 5,51 edge has the breach 52 that adapts with the horizontal tip 25 in the hole, and spring 6 is housed in bullet groove 22, be placed with catch 7 above the spring 6, catch 7 outer middle side parts are provided with recess 71.Described recess 71 not of uniform size causing are complementary with different key.In lock core 2, transmission circle 5 being fitted in lock core cover 1 by gland 8, be connected with the transmission bar in the outer end of transmission circle 5 then, the transmission bar is connected with lock body, and the transmission circle of present embodiment 5 is made up of two parts.

Operating principle: the key that will be complementary inserts in the plug keyway 21, key is depressed catch 7, the recess 71 of all catch 7 is at a straight line, pressing spring 26 effects promote lock core 2 forward forward behind the lock core, the horizontal tip 25 of lock core 2 rear ends blocks to breach 52 places of transmission circle 5 forward, key just drives the transmission bar that is connected with transmission circle 5, and rotation is unblanked; Behind lock core 2, push back prosposition, extract key, catch 7 upwards resets, recess 71 is not at same straight line, the every catch 7 of the tooth 41 corresponding lock cores 2 of both sides gear piece 4 blocks lock core 2 can not be forward, after lock core 2 pushes back, the horizontal tip 25 of lock core 2 rear ends also leaves breach 52 places of transmission circle 5, at this moment, rotational lock core 2, because the horizontal tip 25 of lock core 2 rear ends leaves 52 of the breach of transmission circle 5, promptly lock core 2 separates with transmission circle 5, becomes two parts that do not link, lock core 2 freely rotates but can not drive transmission circle 5, lock core 2 lockings, the lock body that is connected with transmission bar 8 keeps original unlatching or closed condition, at this moment, key can freely be extracted lock core by 360 degree, solve traditional locks and need forward certain position to and just can extract key, made things convenient for the old man, children etc. are easily going out key, have avoided occurring card spoon phenomenon and have forced to extract the problem that key damages lock core at correspondence position not; Be in closed condition when locking in addition, if shakedown lock core 2, the horizontal tip 25 of lock core rear end is easy to destroyed disconnection, and this moment, the horizontal tip 25 of lock core 2 rear ends left 52 of the breach of transmission circle 5, and promptly lock core 2 separates with transmission circle 5, become two parts that do not link, lock core 2 freely rotates but can not drive transmission circle 5, and be connected the transmission bar with it motionless, and lock body keeps original closed condition, play good antitheft effect, so theftproof performance is good.Realize unblanking and locking two states by moving backward forward of lock core 2 after adopting the utility model.

Claims (2)

1. anti-theft spring lock core, it comprises the lock core (2) in lock core cover (1) and the lock core cover (1), it is characterized in that: between lock core cover (1) and lock core (2), also be provided with location shell (3), have key (21) above the described lock core (2), be provided with a plurality of bullet groove (22) in the bottom of key (21), be provided with limit groove (23) in the both sides of lock core (2), the rear end of lock core (2) is provided with the rotating shaft (24) of fixedlying connected with lock core, the end of rotating shaft (24) is provided with the horizontal tip (25), in rotating shaft (24), be with back pressing spring (26), between the back pressing spring (26) and the horizontal tip (25), be provided with baffle plate (27), described location shell (3) is provided with the gear piece hole (31) corresponding with limit groove (23), pass through to insert gear piece hole (31) between described lock core (2) and the location shell (3), the gear piece (4) of limit groove (23) is pegged graft together, transmission circle (5) also is housed on the outer end of rotating shaft (24), have the hole (51) that adapts with rotating shaft in the middle of the described transmission circle (5), the edge of (51) has the breach (52) that adapts with the horizontal tip (25) in the hole, spring (6) is housed in bullet groove (22), be placed with catch (7) above the spring (6), the outer middle side part of catch (7) is provided with recess (71).

2. anti-theft spring lock core according to claim 1 is characterized in that: not of uniform size the causing of described recess (71).

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