CN2835467Y - Cylinder lock - Google Patents

Abstract

The utility model relates to a cylinder lock which comprises a lock body 1 and a lock core 2 which is arranged in the lock body 1, wherein a row of first marble holes 11 are arranged alternately in the lock body 1; the lock core 2 is provided with a key slot 21 and second marble holes 22 which are arranged alternately and are in one-to-one correspondence to the first marble holes 11; each group of the first marble holes 11 and each group of the second marble holes 22 are respectively provided with a spring 3, an upper marble 4, a middle marble 5 and a lower marble 6; the adjacent end surface of the middle marble 5 and the upper marble 4 is provided with a protruding part 51; the upper end surface of the protruding part 51 contacts the lower end surface of the upper marble 4; a gap 7 is formed between the side surface of the protruding part 51 and the upper end surface of the middle marble 5. When the lock is in a locking state, the upper parts of the protruding parts 51 are positioned in the first marble holes 11 and the lower parts of the protruding parts 51 are positioned in the second marble holes 22. The cylinder lock can effectively prevent lawbreakers from unlocking the lock by using a marble poking method.

Description

A kind of cylinder lock

Technical field

The utility model relates to a kind of lockset, relates in particular to a kind of cylinder lock.

Background technology

Existing cylinder lock, it generally includes a lock body, is installed in the lock body internal cylinder, has the first pellet shot from a slingshot hole that a row is provided with at interval in the lock body, the second pellet shot from a slingshot hole that has key on the lock core and communicate and be provided with at interval with key, the described first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole are corresponding one by one; Be disposed with spring in the described first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole from top to down, go up pellet shot from a slingshot, middle pellet shot from a slingshot and following pellet shot from a slingshot; Following pellet shot from a slingshot is contained in the second pellet shot from a slingshot hole, and last pellet shot from a slingshot is placed in the first pellet shot from a slingshot hole, and middle pellet shot from a slingshot then is placed between the first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole, and the above-mentioned shape that goes up pellet shot from a slingshot, middle pellet shot from a slingshot and following pellet shot from a slingshot generally is column.The operating principle of this cylinder lock is: earlier key is inserted in the key, tooth on the key contacts with the soffit of each following pellet shot from a slingshot, pellet shot from a slingshot is corresponding down with each for the shape size of each tooth on the key, promptly pass through the height difference of tooth on the key, move up and down corresponding pellet shot from a slingshot down, make each down interface of pellet shot from a slingshot and middle pellet shot from a slingshot and lock body and lock core interface at grade, rotational lock core reaches the purpose of unblanking.Existing this cylinder lock lawless person ratio is easier to push aside, when it utilizes instrument to stir pellet shot from a slingshot, again lock core is applied commutation torsion, stir one of them pellet shot from a slingshot down up and down with instrument in this case, the interface that makes the interface arrival of this time pellet shot from a slingshot and middle pellet shot from a slingshot and lock body and lock core is in conplane state following time, can send kaka sound, at this moment, the lawless person will position this pellet shot from a slingshot, then repeats same step, each following pellet shot from a slingshot is all accurately located, defeat in detail, and then a lock opens, that is to say that existing cylinder lock exists to stir pellet shot from a slingshot up and down, and the defective that the pellet shot from a slingshot location is opened, so poor stability.

The cylinder lock that has tamper-resistant function in the market is also a lot, as a patent No. is that the Chinese utility model patent " a kind of pick-proof lock core " of ZL200320125595.0 (notification number is CN2665306Y) has disclosed the structure so a kind of, it comprises lock core body and wherein lock core rotor, pellet shot from a slingshot and marble spring, it is characterized in that also comprising: be located between lock core body and the lock core rotor rotor cover of rotatable 360 degree; The inner end head of described rotor cover is provided with pulling block; In lock core body, rotor cover and rotor, be respectively equipped with in each corresponding pellet shot from a slingshot hole spring, on pellet shot from a slingshot, middle pellet shot from a slingshot and following pellet shot from a slingshot, pellet shot from a slingshot hole in the rotor cover is the little stairstepping circular hole of outer imperial palace, pellet shot from a slingshot wherein is corresponding also to be the little ladder cylinder of outer imperial palace, and pellet shot from a slingshot length is according to cooperating of key bit its length being set in each.This lock core just can make rotor and rotor cover rotate together when having only valid key to insert, rotor and rotor cover did not all rotate or has only rotor rotation and the rotor cover does not rotate when the key that do not match inserted, and lock still can not be opened.Though it can play tamper-resistant function, this structure can not prevent effectively that still the lawless person from stirring the pellet shot from a slingshot method and opening cylinder lock.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of can prevent effectively that the lawless person from opening the cylinder lock of lockset with stirring the method for pellet shot from a slingshot at above-mentioned prior art present situation, and it also has advantage of simple structure.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of cylinder lock, include a lock body, be installed in the lock body internal cylinder, has the first pellet shot from a slingshot hole that a row is provided with at interval in the lock body, the second pellet shot from a slingshot hole that has key on the lock core and communicate and be provided with at interval with key, the described first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole are corresponding one by one; Be disposed with spring in the described every group first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole from top to down, go up pellet shot from a slingshot, middle pellet shot from a slingshot and following pellet shot from a slingshot; Following pellet shot from a slingshot is contained in the second pellet shot from a slingshot hole, last pellet shot from a slingshot is located in the first pellet shot from a slingshot hole and the key, then being located in the first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole of middle pellet shot from a slingshot, it is characterized in that having a lug boss on the described middle pellet shot from a slingshot end face adjacent with last pellet shot from a slingshot, the upper surface of this lug boss contacts with the lower surface of last pellet shot from a slingshot, form a breach between the side of lug boss and the upper surface of middle pellet shot from a slingshot, under sealed state, the top of lug boss is positioned at the first pellet shot from a slingshot hole, and the lower part of lug boss is positioned at the second pellet shot from a slingshot hole.

Above-mentioned boss is in the center of the middle pellet shot from a slingshot end face adjacent with last pellet shot from a slingshot, forms a breach like this between the upper surface of the side of lug boss and middle pellet shot from a slingshot and is and is symmetrical arranged, and makes when prizing lug boss stressed evenly.

Compared with prior art, advantage of the present utility model is: have a lug boss on its pellet shot from a slingshot in described end face adjacent with last pellet shot from a slingshot, the upper surface of lug boss contacts with the lower surface of last pellet shot from a slingshot, form a breach between the side of lug boss and the upper surface of middle pellet shot from a slingshot, under sealed state, the top of lug boss is positioned at the first pellet shot from a slingshot hole, the lower part of lug boss is positioned at the second pellet shot from a slingshot hole, and work as the lawless person in pushing the lock process aside, must apply commutation torsion to lock core, at this moment this can be fastened on the interface place in the first pellet shot from a slingshot hole and the second pellet shot from a slingshot hole to form a breach between the upper surface of the side of lug boss and middle pellet shot from a slingshot, the lawless person just cannot stir middle pellet shot from a slingshot more like this, middle pellet shot from a slingshot can not enter in the corresponding first pellet shot from a slingshot hole, just can not allow down the interface of pellet shot from a slingshot and middle pellet shot from a slingshot and lock body and lock core interface at grade, so just, can not push this lock aside, play pick-proof effect effectively; Also have when the lawless person prizes, the hole wall in breach and Di Ta pellet shot from a slingshot hole can produce the kaka sound of collision, and it can cause to the lawless person and think the illusion that pushes the position, has reached the effect of misleading the public, and effectively upsets lawless person's malfeasance.Have again to reach this pick-proof effect, only need the centering billiards structure to improve a little and get final product, therefore simple in structure.

Description of drawings

Fig. 1 is the structure sectional view (under the locked state) of the utility model embodiment;

Fig. 2 is the structure sectional view (inserting under the state of key) of the utility model embodiment;

Fig. 3 is that the A-A of Fig. 1 is to sectional view;

Fig. 4 is the structural representation (under the unlocking condition) of the utility model embodiment;

Fig. 5 is the structural representation (anti-dialling under the state) of the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

A kind of cylinder lock shown in Fig. 1～3, include a lock body 1, be installed in lock body 1 internal cylinder 2, has the first pellet shot from a slingshot hole 11 that a row is provided with at interval in the lock body 1, the second pellet shot from a slingshot hole 22 that has key 21 on the lock core 2 and communicate and be provided with at interval with key 21, the described first pellet shot from a slingshot hole 11 and the second pellet shot from a slingshot hole 22 are corresponding one by one, and the first pellet shot from a slingshot hole 11 and the second pellet shot from a slingshot hole 22 respectively have five; Be disposed with spring 3 in the described every group first pellet shot from a slingshot hole 11 and the second pellet shot from a slingshot hole 22 from top to down, go up pellet shot from a slingshot 4, middle pellet shot from a slingshot 5 and following pellet shot from a slingshot 6; Following pellet shot from a slingshot 6 is contained in the second pellet shot from a slingshot hole 22, last pellet shot from a slingshot 4 is located in the first pellet shot from a slingshot hole 11 and the key 21, then being located in the first pellet shot from a slingshot hole 11 and the second pellet shot from a slingshot hole 22 of middle pellet shot from a slingshot 5, has a lug boss 51 on the end face that pellet shot from a slingshot 5 and last pellet shot from a slingshot 4 are adjacent in described, lug boss 51 is arranged in the center position of the adjacent end face of pellet shot from a slingshot 5 and last pellet shot from a slingshot 4,51 upper surfaces of lug boss contact with the lower surface of last pellet shot from a slingshot 4, form a breach 7 between the upper surface of the side of lug boss 51 and middle pellet shot from a slingshot 5, under sealed state, the top of lug boss 51 is positioned at the first pellet shot from a slingshot hole 11, and the lower part of lug boss 51 is positioned at the second pellet shot from a slingshot hole 22.

Operating principle of the present utility model and process are such:

When normally unblanking, shown in Fig. 2,4, key 8 is inserted in the key, tooth on the key 8 with each down the soffit of pellet shot from a slingshot 6 contact, pellet shot from a slingshot 6 is corresponding down for shape size and each of the tooth on each key 8, promptly passes through the height difference of the tooth on the key 8, move up and down corresponding pellet shot from a slingshot 6 down, make each down interface of pellet shot from a slingshot 6 and middle pellet shot from a slingshot 5 and lock body 1 and lock core 2 interface at grade, rotational lock core 5 reaches the purpose of unblanking;

When the lawless person will push this lock aside, as shown in Figure 5, master key 9 is inserted in the key 21, again lock core 2 is applied commutation torsion, at this moment this can be fastened on the interface place in the first pellet shot from a slingshot hole 11 and the second pellet shot from a slingshot hole 55 to form a breach 7 between the upper surface of the side of lug boss 51 and middle pellet shot from a slingshot 5, the lawless person just cannot re-use instrument and stir middle pellet shot from a slingshot 5 like this, middle pellet shot from a slingshot 5 can not enter in the corresponding first pellet shot from a slingshot hole 11, just allow down the interface of pellet shot from a slingshot 6 and middle pellet shot from a slingshot 5 and the interface of lock body 1 and lock core 2 can so just can not pry open this cylinder lock at grade.

Claims (2)

1, a kind of cylinder lock, include a lock body (1), be installed in lock body (1) internal cylinder (2), has the first pellet shot from a slingshot hole (11) that a row is provided with at interval in the lock body (1), have the second pellet shot from a slingshot hole (22) that key (21) reaches and key (21) communicates and be provided with at interval on the lock core (2), the described first pellet shot from a slingshot hole (11) and the second pellet shot from a slingshot hole (22) are corresponding one by one; Be provided with spring (3) in the described every group first pellet shot from a slingshot hole (11) and the second pellet shot from a slingshot hole (22) from top to down successively, go up pellet shot from a slingshot (4), middle pellet shot from a slingshot (5) and following pellet shot from a slingshot (6); Following pellet shot from a slingshot (6) is contained in the second pellet shot from a slingshot hole (22), last pellet shot from a slingshot (6) is located in the first pellet shot from a slingshot hole (11) and the key (21), then being located in the first pellet shot from a slingshot hole (11) and the second pellet shot from a slingshot hole (22) of middle pellet shot from a slingshot (5), it is characterized in that having a lug boss (51) on described middle pellet shot from a slingshot (5) end face adjacent with last pellet shot from a slingshot (4), the upper surface of this lug boss (51) contacts with the lower surface of last pellet shot from a slingshot (4), form a breach (7) between the upper surface of the side of lug boss (51) and middle pellet shot from a slingshot (5), under sealed state, the top of lug boss (51) is positioned at the first pellet shot from a slingshot hole (41), and the lower part of lug boss (51) is positioned at the second pellet shot from a slingshot hole (22).

2, cylinder lock according to claim 1 is characterized in that described lug boss (51) is arranged in the center of pellet shot from a slingshot (5) end face adjacent with last pellet shot from a slingshot (4).

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