CN201447951U

CN201447951U - An expanded key and a matched lock core

Info

Publication number: CN201447951U
Application number: CN2009200617862U
Authority: CN
Inventors: 李振宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-04
Filing date: 2009-08-04
Publication date: 2010-05-05
Anticipated expiration: 2019-08-04

Abstract

The utility model discloses an expanded key and a matched lock core, wherein the key in the utility model comprises a key handgrip, a key housing and a central vertical key that fixed on the key handgrip and flexural key set on two sides of the central vertical key. The lock core in the utility model comprises a cylindrical abrasive grit, a cylindrical abrasive grit head, a quadrangular abrasive grit, a quadrangular abrasive grit head, a lock core, a lock forepart and a lock rear part. The expanded key in the utility model adopts a structure that composed by a central vertical key and flexural key set on two sides of the central vertical key, separating a key into three heads; the central vertical key is used to protect the flexural key set on two sides of the central vertical key to prevent it from destroyed by bearing oversize force; the lock core matched with the expanded key in the utility model cannot be opened by common unlocking tools, therefore providing high safe coefficient, and springs on two sides of it solves the problem that the key must be put back into the housing manually when pulled out each time, which makes it more humane. The utility model is provided with simple structure, and can be applied on various locks in every field.

Description

Expansion key and matching used lock core thereof

Technical field

The utility model is a kind of expansion key and matching used lock core thereof, belongs to the renovation technique of expansion key and matching used lock core thereof.

Background technology

Along with the development of society, antitheft problem is also important all the more.At present, in any case known key changes shape, all be the vertical bar formula, the matching used lock of vertical bar formula key is opened by unlocking tool easily, and safety factor is lower, is difficult to satisfy antitheft requirement.

The utility model content

The purpose of this utility model is to consider the problems referred to above and a kind of expansion key that is combined by straight formula key and musical form key is provided.The utility model can satisfy antitheft requirement with the corresponding supporting use of lock core, and can not damaged because bearing excessive power.

Another purpose of the present utility model is to provide a kind of be difficult for opened by unlocking tool, the safety factor height, satisfy antitheft requirement with the matching used lock core of expansion key.The utility model is simple in structure, and volume is less, and is convenient and practical.

The technical solution of the utility model is:

Expansion key of the present utility model, include the key handgrip, key protective case and be fixed on central straight formula key on the key handgrip, be arranged on the musical form key of central straight formula key both sides, wherein the musical form key includes some first musical form key joints, some reeded second musical form key joints of making, wherein some first musical form key joints pass the adapter sleeve that is made at upper and lower side and middle part each other by musical form key axle and link together, some second musical form key joints pass the adapter sleeve that is made at upper and lower side and middle part each other by musical form key axle and link together, also passing the adapter sleeve that is made at upper and lower side and middle part each other by musical form key axle between first musical form key joint and the second musical form key joint links together, spring is installed in the set groove of spoon protective case, and the key protective case is packed on the key handgrip.

The end of above-mentioned second musical form key joint also is provided with the musical form key bit.

The utility model and the matching used lock core of expansion key, include cylindrical abrasive grit, cylindrical abrasive grit head, the four prism type abrasive grit, four prism type abrasive grit head, core, lock is anterior, the lock rear portion, wherein cylindrical abrasive grit head is installed in the core, cylindrical abrasive grit is installed in the lock front portion, and cylindrical abrasive grit is corresponding with the position of cylindrical abrasive grit head, cylindrical abrasive grit places the outside of cylindrical abrasive grit head, the outside of cylindrical abrasive grit also is equiped with back-moving spring, four prism type abrasive grit head is installed in the core, the four prism type abrasive grit is installed in the lock front portion, and the four prism type abrasive grit is corresponding with the position of four prism type abrasive grit head, the four prism type abrasive grit places the outside of four prism type abrasive grit head, the outside of four prism type abrasive grit also is equiped with back-moving spring, and the lock rear portion is installed in the anterior rear end of lock, and links together.

Expansion key of the present utility model is owing to adopt the structure of being made up of the musical form key on the straight formula key of centre and both sides, a key 3 statures have been divided into, middle straight formula key is in order to protect the musical form key of both sides, to make it can not damaged because bearing excessive power; The utility model and the matching used lock core of expansion key; general unlocking tool is difficult to open; the safety factor height of lock; and the spring of its both sides has solved and has extracted the problem of all wanting behind the key manually key to be return in the containment vessel at every turn; making it to use hommization more. the utility model is simple in structure; and volume is less; can use the various of every field locks; as house door lock, automotive lock, padlock etc. the utility model is that a kind of design is ingenious; function admirable, convenient and practical expansion key and matching used lock core thereof.

Description of drawings

Fig. 1 is the outside figure of the utility model key.

Fig. 2 is the interior view of the utility model key.

Fig. 3 is the utility model key interior section part and assembly drawing thereof.

Fig. 4 is the sectional drawing of the utility model key handgrip.

Fig. 5 is the top view of the utility model core.

Fig. 6 is the lateral view of the utility model core.

Fig. 7 is the connection diagram of the utility model core and lock.(annotate: the utility model core with the structure of external lock still according to existing structure construction.)

Fig. 8 is the top view after the utility model key injects lock.

Fig. 9 is that the utility model key injects the lateral view of lock back musical form key and the lateral view that key injects the straight formula key in lock back.

Among the figure:

1, key handgrip, 2, the key protective case, 3, spring, 4, central straight formula key, 5, musical form key axle, 6, first musical form key joint, 7, second musical form key joint, 8, the musical form key bit, 9, cylindrical abrasive grit, 10, cylindrical abrasive grit head, 11, four prism type abrasive grit, 12, four prism type abrasive grit head, 13, core, 14, lock is anterior, and 15, the lock rear portion.

The specific embodiment

Embodiment:

Structural representation of the present utility model such as Fig. 1,2,3, shown in 4, expansion key of the present utility model, include key handgrip 1, key protective case 2 and be fixed on central straight formula key 4 on the key handgrip 1, be arranged on the musical form key of central straight formula key 4 both sides, wherein the musical form key includes some first musical form key joints 6, some second musical form key joints 7 of fluted 71 of making, wherein some first musical form key joints 6 pass the adapter sleeve 61 that is made at upper and lower side and middle part each other by musical form key axle 5 and link together, some second musical form key joints 7 pass the adapter sleeve 61 that is made at upper and lower side and middle part each other by musical form key axle 5 and link together, also passing the adapter sleeve 61 that is made at upper and lower side and middle part each other by musical form key axle 5 between first musical form key joint, the 6 and second musical form key joint 7 links together, spring 3 is installed in the set groove of spoon protective case 2, and key protective case 2 is contained on the key handgrip 1.

In the present embodiment, the end of above-mentioned second musical form key joint 7 also is provided with musical form key bit 8.

The utility model and the matching used lock core of expansion key, include cylindrical abrasive grit 9, cylindrical abrasive grit head 10, four prism type abrasive grit 11, four prism type abrasive grit head 12, core 13, lock anterior 14, lock rear portion 15, wherein cylindrical abrasive grit head 10 is installed in the core 13, cylindrical abrasive grit 9 is installed in the lock anterior 14, and cylindrical abrasive grit 9 is corresponding with the position of cylindrical abrasive grit head 10, cylindrical abrasive grit 9 places the outside of cylindrical abrasive grit head 10, the outside of cylindrical abrasive grit 9 also is equiped with back-moving spring 3, four prism type abrasive grit head 12 is installed in the core 13, four prism type abrasive grit 11 is installed in the lock anterior 14, and four prism type abrasive grit 11 is corresponding with the position of four prism type abrasive grit head 12, four prism type abrasive grit 11 places the outside of four prism type abrasive grit head 12, the outside of four prism type abrasive grit 11 also is equiped with back-moving spring 3, lock rear portion 15 is installed in the rear end of lock anterior 14, and linking together. second musical form key joint, 7 grooves of making 71 can fall into into cylindrical abrasive grit head 10, reach the effect of Fig. 9.

Four prism type abrasive grit 11, four prism type abrasive grit head 12 can not be shifted one's position with cylindrical abrasive grit 9,10 holding positions of cylindrical abrasive grit head.As shown in Figure 5, cylindrical abrasive grit head 10 and cylindrical abrasive grit 9 are vertical with core 13, so can be with cylindrical.But every group of four prism type abrasive grit 11 is parallel to each other with four prism type abrasive grit head 12, as shown in Figure 6, is different with the angulation of core 13, therefore will make four prism type, in order to avoid after the abrasive grit rotation, block core 13 it can not be rotated.

Operating principle of the present utility model is as follows: after key injects lock, will occur as Fig. 8, situation shown in Figure 9.After extracting key, key protective case 2 can be to recovery under the effect of spring 3, because the power that key protective case 2 reclaims makes the straight mutually formula key of two musical form keys of straight formula key 4 both sides draw close and be withdrawn in the key protective case 2.Return to the situation of Fig. 1.Under this state, because the effect of spring 3, two musical form keys of straight formula key 4 and both sides can contract in protective case 2 always.Make it can not mark, thereby avoided the accidental damage that in the process of carrying, key caused because of unexpected factors such as vibrations.

Claims

1. expansion key, it is characterized in that including key handgrip (1), key protective case (2) and be fixed on central straight formula key (4) on the key handgrip (1), be arranged on the musical form key of central straight formula key (4) both sides, wherein the musical form key includes some first musical form key joints (6), some second musical form key joints (7) of making fluted (71), wherein some first musical form key joints (6) pass the adapter sleeve (61) that is made at upper and lower side and middle part each other by musical form key axle (5) and link together, some second musical form key joints (7) pass the adapter sleeve (61) that is made at upper and lower side and middle part each other by musical form key axle (5) and link together, also passing the adapter sleeve (61) that is made at upper and lower side and middle part each other by musical form key axle (5) between first musical form key joint (6) and the second musical form key joint (7) links together, spring (3) is installed in the set groove of a spoon protective case (2), and key protective case (2) is contained on the key handgrip (1).

2. expansion key according to claim 1 is characterized in that the end of above-mentioned second musical form key joint (7) also is provided with musical form key bit (8).

One kind with the matching used lock core of the described expansion key of claim 1, it is characterized in that including cylindrical abrasive grit (9), cylindrical abrasive grit head (10), four prism type abrasive grit (11), four prism type abrasive grit head (12), core (13), lock anterior (14), lock rear portion (15), wherein cylindrical abrasive grit head 10) is installed in the core (13), cylindrical abrasive grit (9) is installed in the lock anterior (14), and cylindrical abrasive grit (9) is corresponding with the position of cylindrical abrasive grit head (10), cylindrical abrasive grit (9) places the outside of cylindrical abrasive grit head (10), the outside of cylindrical abrasive grit (9) also is equiped with back-moving spring (3), four prism type abrasive grit head (12) is installed in the core (13), four prism type abrasive grit (11) is installed in the lock anterior (14), and four prism type abrasive grit (11) is corresponding with the position of four prism type abrasive grit head (12), four prism type abrasive grit (11) places the outside of four prism type abrasive grit head (12), the outside of four prism type abrasive grit (11) also is equiped with back-moving spring (3), lock rear portion (15) is installed in the rear end of lock anterior (14), and links together.