CN203684811U

CN203684811U - Pin tumbler lock cylinder

Info

Publication number: CN203684811U
Application number: CN201420080536.4U
Authority: CN
Inventors: 黄辉源
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-25
Filing date: 2014-02-25
Publication date: 2014-07-02
Anticipated expiration: 2024-02-25

Abstract

Provided is a pin tumbler lock cylinder. A T-shaped antitheft safety structure composed of two rows of transverse moving balls and a vertical moving ball assembly is arranged inside a lock cylinder body. The axis of the vertical moving ball assembly and the vertical center of a key insertion hole formed in a lock core coincide. The vertical moving ball assembly comprises a vertical moving ball in a vertical moving hole of the lock core, a reset spring provided with a lock case and arranged in the vertical moving hole and a safety flat ball. The vertical moving hole of the lock core is perpendicularly communicated with the key insertion hole. The two rows of transverse moving balls are formed in transverse moving holes, in the two sides of the key insertion hole, of the lock core, the inner ends of the transverse moving holes of the lock core are perpendicularly communicated with the key insertion hole, and the outer ends of the transverse moving holes of the lock core are communicated with an arc groove in the inner wall of the lock case. Transverse moving unlocking concaved portions for the inner ends of the corresponding transverse moving balls to slide are formed in the side wall of the key when the lock core is rotated for unlocking. The vertical moving ball assembly is arranged in front of an innermost ball assembly. The pin tumbler lock cylinder is reasonable in structure, and the production cost is lowered on the premise of guaranteeing the antitheft performance.

Description

Lock cylinder

[technical field]

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

[background technology]

We know, lock core is the key link that determines a lock theftproof performance, current lock cylinder, because consider that Cost Problems does too simply by structure and do not have anti-theft function, in order to play anti-theft feature, lock core structure to be designed very complicatedly, such as adopting a lot of special-shaped hoodles to increase the difficulty that robber unblanks, but the processing of special-shaped hoodle and complicated structure can improve difficulty of processing and cost of production greatly.

[utility model content]

The purpose of this utility model is to be to overcome the deficiencies in the prior art, provides a kind of rational in infrastructure, the lock cylinder that can reduce production costs in guaranteeing theftproof performance.

In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:

A kind of lock cylinder, the plug body that includes key, formed by lock housing and lock gall and be located at least one row's hoodle assembly in plug body, each hoodle assembly includes back-moving spring, flat pearl and hoodle, is provided with " fourth " font anti-theft security structure being formed by two row's transverse shifting pearls and a vertical mobile pearl assembly in described plug body; The axis of described vertical mobile pearl assembly overlaps with the longitudinal center that opens the key jack in lock gall, and it includes vertical mobile pearl in the vertical mobile hole that is located at lock gall, be provided with back-moving spring and the flat pearl of safety in the vertical mobile hole of lock housing; The vertical mobile hole of described lock gall communicates with key jack is vertical; Described two row's transverse shifting pearls are located at lock gall and are arranged in the transverse shifting hole of key jack both sides, and the inner end in the transverse shifting hole of described lock gall communicates with key jack is vertical, and outer end communicates with the arc groove being located on lock-shell lining; On described key sidewall, be provided with the transverse shifting pearl release recess sliding into for corresponding transverse shifting pearl inner end when lock gall is unblanked when rotating; Described vertical mobile pearl assembly is before leaning on that inner hoodle assembly most.

In to the improvement project of above-mentioned lock cylinder, in the positive apparent direction of lock cylinder, the axis of the axis of described mobile pearl assembly and hoodle assembly is staggered.

In to the improvement project of above-mentioned lock cylinder, the diameter of described vertical mobile pearl is greater than hoodle diameter.

In to the improvement project of above-mentioned lock cylinder, described hoodle assembly has two rows, in positive apparent direction, this vertical mobile pearl assembly is clipped between this two rows hoodle assembly, in side-looking direction this vertical mobile pearl assembly this two rows hoodle assembly by before that inner hoodle assembly.

In to the improvement project of above-mentioned lock cylinder, described transverse shifting pearl release recess is through hole.

Compared with prior art, the beneficial effects of the utility model are: it is provided with by two row's transverse shifting pearls and a vertical mobile pearl assembly and forms " fourth " font anti-theft security structure in plug body, because key jack itself is just very little, when undesirable will provoke hoodle while unblanking, he can be inserted into thin unlock chip in key jack, at this moment unlock chip will slide in the arc groove that is inserted into lock-shell lining their outer ends toward lock gall extrapolation two row's transverse shifting pearls, then unlock chip makes vertical mobile pearl up push away again, at this moment because vertical mobile pearl and hoodle are staggered, so just cannot vertical mobile pearl and hoodle up be pushed away to remove the locking that lock gall is rotated simultaneously with unlock chip simultaneously, and owing to being subject to the wide restriction in hole of key jack, be difficult to insert again other instrument and promote the up mobile locking of removing lock gall of hoodle, meanwhile, once unlock chip is advanced to the outer end of two row's transverse shifting pearls in the arc groove of lock-shell lining, due to not being set on unlock chip, the accommodation space of similar transverse shifting pearl release recess comes under the arc groove effect in lock housing, to slide into inward to remove the locking of transverse shifting pearl to lock gall for transverse shifting pearl corresponding in the time rotating lock gall, two of " fourth " font anti-theft security structure row transverse shifting pearls and vertical mobile pearl have formed the locking that the Trinity is rotated lock gall like this, only have the correct key of insertion just can make " fourth " font anti-theft security structure and hoodle assembly remove the locking to lock gall simultaneously, ability opening lock master like this, therefore the utility model can play reliable anti-theft function, in addition, hoodle assembly of the present utility model, transverse shifting pearl and vertical mobile pearl are not madankus, just very convenient, simple while processing like this these pearls, thereby in guaranteeing lock core theftproof performance, can reduce the cost of production of lock cylinder.

Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:

[brief description of the drawings]

Fig. 1 is the schematic perspective view (while inserting key) of the utility model embodiment;

Fig. 2 is the lateral view (while not inserting key) of the utility model embodiment;

Fig. 3 is that the B-B of Fig. 2 is to sectional view;

Fig. 4 is the elevation of the utility model embodiment;

Fig. 5 is the assembling schematic diagram of the utility model embodiment;

Fig. 6 is the local I enlarged drawing of Fig. 5.

[detailed description of the invention]

The utility model is a kind of lock cylinder, the plug body that includes key 1, formed by lock housing 2 and lock gall 3 and be located at least one row's hoodle assembly 4 in plug body, each hoodle assembly 4 includes back-moving spring 41, flat pearl 42 and hoodle 43, the structural principle of hoodle assembly 4 with current lock cylinder structure basically identical, this: in described plug body, be provided with " fourth " font anti-theft security structure (shown in Fig. 3 is that " fourth " font has been turned around) being formed by two row's transverse shifting pearls 5 and a vertical mobile pearl assembly 6, in the positive apparent direction of lock core, the axis of described vertical mobile pearl assembly 6 overlap with the longitudinal center that opens the key jack 31 in lock gall 3 (inserting key jack direction from key), it includes the vertical mobile pearl 61 in the vertical mobile hole 32 that is located at lock gall 3, be provided with back-moving spring 62 and the flat pearl 63 of safety in the vertical mobile hole 21 of lock housing 2, in the time not inserting key 1, under action of reset spring, two parts up and down of the flat pearl 63 of safety are hidden respectively the vertical mobile hole 21 that is contained in lock housing 2 and lock gall 3, in 32, once and insert key, the end face that vertical mobile pearl 61 and the flat pearl 63 of safety contact is just tangent with lock gall cylindrical, at this moment just rotatable lock gall opens the door, the vertical mobile hole 32 of described lock gall 3 communicates with key jack 31 is vertical, described two row's transverse shifting pearls 5 are located at lock gall 3 and are arranged in the transverse shifting hole 33 of key jack 31 both sides, and the inner end in the transverse shifting hole 33 of described lock gall 3 communicates with key jack 31 is vertical, and outer end communicates with the arc groove 22 being located on lock housing 2 inwalls, on described key 1 sidewall, be provided with the transverse shifting pearl release recess 11 sliding into for corresponding transverse shifting pearl 5 inner ends when lock gall 3 is unblanked when rotating, thereby after making transverse shifting pearl 5 can not expose lock gall, its partial insertion arrives the rotation that hinders lock gall in lock housing, before described vertical mobile pearl assembly 6 is positioned at that hoodle assembly 4 by inner (that side that starts to insert lock gall with key is defined as the outermost of lock core), that is to say that vertical mobile pearl assembly 6 can be before that outermost hoodle assembly (as shown in this embodiment), also can be between any two the adjacent hoodle assemblies 4 of same row, and can not be more inner than also leaning on by that inner hoodle assembly, otherwise lose the anti-protective effect of choosing by those inner hoodle assemblies to mobile pearl assembly.

In the time that insertion key is opened, two row's transverse shifting pearls 5 of the Jiang Qi both sides, two side of key are inserted in corresponding arc groove 22 transverse shifting pearl outer end toward lock gall extrapolation, meanwhile, under key effect, end face and lock gall cylindrical that the flat pearl 42 of hoodle assembly 4 and hoodle 43 contact are tangent, the end face that the vertical mobile pearl 61 of vertical mobile pearl assembly 6 and the flat pearl 63 of safety contact is also tangent with lock gall cylindrical, thereby make all hoodle assemblies 4 and vertical mobile pearl assembly 6 remove the locking to lock gall, at this moment as long as drive lock gall rotation by rotating key, under the arcwall face effect of the arc groove 22 of lock housing 2, transverse shifting pearl 5 will be toward sliding in lock gall until its outermost end is removed the locking that lock gall is rotated just can be rotated further afterwards lock gall and unblanked.

The utility model is provided with by two row's transverse shifting pearls 5 and a vertical mobile pearl assembly 6 and forms " fourth " font anti-theft security structure in plug body, because key jack itself is just very little, when undesirable provokes hoodle while unblanking with foreign matter (as unlock chip), he can be inserted into thin unlock chip in key jack, at this moment unlock chip will slide in the arc groove that is inserted into lock-shell lining their outer ends toward lock gall extrapolation two row's transverse shifting pearls, then unlock chip makes vertical mobile pearl 61 up push away again, at this moment because vertical mobile pearl 61 and hoodle are staggered, so just cannot vertical mobile pearl and hoodle up be pushed away to remove the locking that lock gall is rotated simultaneously with unlock chip, and owing to being subject to the wide restriction in hole of key jack, be difficult to insert again other instrument and promote the up mobile locking of removing lock gall of hoodle, meanwhile, once unlock chip is advanced to the outer end of two row's transverse shifting pearls in the arc groove of lock-shell lining, come under arc groove 22 effects of lock housing 2, to slide into inward to remove the locking of transverse shifting pearl to lock gall for transverse shifting pearl 5 corresponding in the time that rotation lock gall 3 is unblanked owing to there is no to arrange the such accommodation space of transverse shifting pearl release recess being similar on key on unlock chip, two of " fourth " font anti-theft security structure row transverse shifting pearls and vertical mobile pearl have formed the locking that the Trinity is rotated lock gall like this, only have the correct key of insertion just can make " fourth " font anti-theft security structure and hoodle assembly remove the locking to lock gall simultaneously, ability opening lock master like this, therefore the utility model can play reliable anti-theft function, in addition, hoodle assembly of the present utility model, transverse shifting pearl and vertical mobile pearl are all cylindrical pearls, and be processed into arc, tapering at two ends, these pearls are not madankus, so just very convenient, simple when these pearls in processing, thereby in guaranteeing lock core theftproof performance, can reduce the cost of production of lock cylinder.

In the positive apparent direction of lock core, (insert the key jack direction of lock gall from key), the axis of mobile pearl assembly 6 and the axis of hoodle assembly 4 be staggered (not overlapping), to play better anti-theft function, that is to say, in positive apparent direction, because the axis of vertical mobile pearl assembly 6 overlaps with the longitudinal center that opens the key jack 31 in lock gall 3, make the axis of hoodle assembly 4 do not overlap with the longitudinal center that opens the key jack 31 in lock gall 3 (from key insertion key jack direction).

In order to block better those hoodle assemblies after vertical mobile pearl, conventionally the diameter of described vertical mobile pearl 61 is designed to be greater than hoodle 43 diameters, can increase like this difficulty that robber opens, thereby further improve theftproof performance.

In the present embodiment, described hoodle assembly 4 has two rows, on the vertical mobile pearl assembly 6 described in positive apparent direction, be clipped between this two rows hoodle assembly 4, in side-looking direction this two rows hoodle assembly 4 by before that inner hoodle assembly can, can further improve like this theftproof performance of lock cylinder.In the present embodiment, vertical mobile pearl assembly 6 is before that outermost hoodle assembly 4; Certainly, when vertical mobile pearl assembly 6 on lateral by between two hoodle assemblies of innner and outer time, can increase the difficulty that robber unblanks with foreign matter, be positioned at that all hoodles before vertical mobile pearl assembly 6 are up mobile all to be removed those corresponding flat pearls to promote vertical mobile pearl assembly and remove the lock operation to lock gall carrying out after lock gall locking because will first promote this two rows hoodle assembly.Certainly, described hoodle assembly 4 also can have a row, and in positive apparent direction, all can in left side or right side that they are positioned at vertical mobile pearl assembly 6.

Preferably, as shown in Figure 5,6, transverse shifting pearl release recess 11 on key is through holes, so both be convenient to processing, can make again key it goes without doing so thickly, so the key jack 31 of opening on lock gall also just can do narrowly, make that robber is more difficult to unblank with foreign matter, thereby can further improve the theftproof of lock cylinder.

Although reference above embodiment describes the utility model in detail, but it will be apparent to one skilled in the art that by the disclosure, and in the case of not departing from the principle of the present utility model and spiritual scope of described claim restriction, can the utility model be made a variety of changes or be revised.Therefore, the detailed description of disclosure embodiment is only used for explaining, instead of is used for limiting the utility model, but is defined by the subject-matter of the claims the scope of protection.

Claims

1. a lock cylinder, the plug body that includes key (1), formed by lock housing (2) and lock gall (3) and be located at least one row's hoodle assembly (4) in plug body, each hoodle assembly (4) includes back-moving spring (41), flat pearl (42) and hoodle (43), it is characterized in that, in described plug body, be provided with " fourth " font anti-theft security structure being formed by two row's transverse shifting pearls (5) and a vertical mobile pearl assembly (6); The axis of described vertical mobile pearl assembly (6) overlaps with the longitudinal center that opens the key jack (31) in lock gall (3), and it includes vertical mobile pearl (61) in the vertical mobile hole (32) that is located at lock gall (3), be provided with back-moving spring (62) and the flat pearl of safety (63) in the vertical mobile hole (21) of lock housing (2); The vertical mobile hole (32) of described lock gall (3) and vertical the communicating of key jack (31); Described two row transverse shifting pearls (5) are located at lock gall (3) and are arranged in the transverse shifting hole (33) of key jack (31) both sides, the inner end in the transverse shifting hole (33) of described lock gall (3) and vertical the communicating of key jack (31), outer end communicates with the arc groove (22) being located on lock housing (2) inwall; On described key (1) sidewall, be provided with the transverse shifting pearl release recess (11) sliding into for corresponding transverse shifting pearl (5) inner end when lock gall (3) is unblanked when rotating; Described vertical mobile pearl assembly (6) is by that inner hoodle assembly (4) the most before.

2. lock cylinder according to claim 1, is characterized in that, in the positive apparent direction of lock cylinder, the axis of the axis of described mobile pearl assembly (6) and hoodle assembly (4) is staggered.

3. lock cylinder according to claim 1 and 2, is characterized in that, the diameter of described vertical mobile pearl (61) is greater than hoodle (43) diameter.

4. lock cylinder according to claim 3, it is characterized in that, described hoodle assembly (4) has two rows, in positive apparent direction, this vertical mobile pearl assembly (6) is clipped between this two row's hoodle assembly (4), in side-looking direction this vertical mobile pearl assembly (6) this two row's hoodle assembly (4) by before that inner hoodle assembly.

5. lock cylinder according to claim 4, is characterized in that, described transverse shifting pearl release recess (11) is through hole.