CN2591143Y

CN2591143Y - Lock with master and pass keys

Info

Publication number: CN2591143Y
Application number: CN 02270764
Authority: CN
Inventors: 李国栓
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-10
Filing date: 2002-11-10
Publication date: 2003-12-10
Anticipated expiration: 2012-11-10

Abstract

The utility model relates to a sub and main lock, which comprises a lock casing, a lock core and a bolt. The utility model also comprises a lock cover, and a key hole is arranged on the lock cover; the lock cover is fixedly connected with the lock casing, and the lock core is positioned in the lock casing; a starting body is arranged on one end of the lock core, and the bolt is fixed on the other end of the lock core; a limited groove is arranged on the inner wall of the lock casing, a limited block and a starting block are also arranged on the lock core, and the limited block is positioned in the limited groove. The utility model also discloses a sub key and a main key which are matched with the utility model; each sub key only can be used for opening one lock, but the main key can be used for opening all locks of same batch. The sub and main lock not only has basic safety function but also can be conveniently used for unified management.

Description

Primary and secondary lock

Technical field

The utility model belongs to lock, relates in particular to a kind of primary and secondary lock that is used on the logistics distribution case.

Background technology

Open different locks with different keys, illustrate that lockset has basic security function, and this function is also made troubles to people sometimes, resemble present many dairy products enterprise and all carry out " sending the family of suckling " service, they are equipped with the milk case need for thousands of subscriber and lock respectively, and each milk deliverer will be responsible for sending milk to up to a hundred subscribers, if common lock, then he need carry up to a hundred keys and open corresponding milk case respectively, and its work difficulty and intensity are well imagined.Lock commonly used on the railway car is simple in structure at present, can intercommunication open mutually, but considers from security standpoint, but is not suitable for being used on different subscribers' the milk case.If can load onto a kind of like this lock on the case at milk: it can make each subscriber can only open oneself lock, and the milk deliverer can then can bring great convenience to milk deliverer's work with a lock of opening all subscribers that he is responsible for.

Summary of the invention

The purpose of this utility model provides a kind of existing basic security function, is convenient to the primary and secondary lock of unified management again.

The purpose of this utility model is achieved through the following technical solutions: a kind of primary and secondary lock, comprise lock housing, lock core and dead bolt, it also comprises locking closure, and keyhole is arranged on the locking closure, and locking closure and lock housing are connected, lock core is positioned at lock housing, one end of lock core is for starting body, and dead bolt is fixed on the other end of lock core, and stopper slot is arranged on the lock-shell lining, also have limited block on the lock core and start piece, limited block is positioned at stopper slot.

On the described locking closure guide slot is arranged.

One end of the fixedly dead bolt of described lock core passes lock housing.

Described startup body is prismatic.

Described startup body is cross.

Open the sub-key of this primary and secondary lock, comprise handle and key body, there is the startup groove that matches with described startup piece the key body end, has on the key body to make to start the cylindrical cavity that body enters.

Described key body has directed piece outward.

The advantage of this primary and secondary lock is, it is identical and start locks block-shaped, that size is different with the position to make a batch initiation shape, and every bundle key can only be driven a lock, and mother key can be opened this a collection of all lock.After loading onto this primary and secondary lock on the logistics distribution box body, both can guarantee each subscriber's cargo security, can reduce dispensing person's work difficulty greatly again, thereby increase work efficiency.

This primary and secondary lock can be installed on the casings such as milk case, newspaper case, mailbox, electricity meter box or TV difference commentaries on classics case.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The front view that Fig. 2 cuts open for the band office of lock housing.

Fig. 3 is the vertical view of Fig. 2.

The front view that Fig. 4 cuts open for the band office of locking closure.

Fig. 5 is the upward view of Fig. 4.

Fig. 6 is the front view of lock core.

Fig. 7 is the upward view of Fig. 6.

Fig. 8 is the vertical view of Fig. 6.

Fig. 9 is the another kind of shape schematic diagram of lock core.

Figure 10 is the front view of sub-key.

Figure 11 is the left view of Figure 10.

Figure 12 is that the A-A of Figure 10 is to view.

Figure 13 is the front view of mother key.

Figure 14 is the left view of Figure 13.

Figure 15 is that the B-B of Figure 13 is to view.

The specific embodiment

As shown in Figure 1, locking closure 2 is fixed together by screw 3 with lock housing 5, and guide slot 1 is arranged on the locking closure 2.As shown in Figure 5, on the locking closure 2 keyhole 12 is arranged.As shown in Figure 6, lock core 4 tops are prismatic startup body 10, and the bottom is a cylinder, and the cylinder lower end passes lock housing, is fixed with dead bolt 6 with screw 3 on it.As Fig. 6, shown in Figure 7, also has limited block 9 on the cylinder of lock core.As Fig. 2, shown in Figure 3, C shape restriction protrusion 7 is arranged on lock housing 5 inwalls, the barbed portion of this C shape restriction protrusion 7 is stopper slot 8.Limited block 9 just in time is positioned at stopper slot 8, and the size of limited block 9 and stopper slot 8 should make lock core can rotate about 90 ° in lock housing.The piece 11 of startup is arranged on the lock core 4, and the shape approximation of the startup piece 11 among Fig. 6 is a quadrangular, and starting body 10 is triangular prism.

The key that matches with this primary and secondary lock is divided into sub-key and mother key.As Figure 10, Figure 11, sub-key shown in Figure 12, it is right-hand to be handle, and left is the cylindrical key body 14 that has cylindrical cavity 15, and the cross section of cylindrical cavity 15 is a circle, the cross section that starts body 10 is a triangle, and this radius of a circle should be greater than this leg-of-mutton external radius of a circle.Key body 14 left end edges have and start the startup groove 17 that piece 11 shapes, position and size are complementary, and when inserting sub-key in the keyhole 12, start groove 17 and start piece 11 interlocks, rotate sub-key, and then the lock core band dead bolt and rotated and can unblank.Outside the key body 14 directed piece 13 is arranged, directed piece 13 cooperates with guide slot 1, and in order to the direction of indication key insertion keyhole, directed piece 13 also can hook locking closure 2 after unblanking, key can not be extracted, and has certain safety effect.

As Figure 13, Figure 14, mother key shown in Figure 15 is right-hand is handle, left is a cylindrical key body 14, the prismatic cavity 18 that matches with startup body 10 is arranged in the key body 14, and also there is directed piece 13 mother key body 14 outsides, and its effect is identical with son directed piece effect on the key.

When startup piece 11 has two or more, the difference of each lock is except that being determined by guide slot 1 and the relative position that starts piece 11, also can decide with the relative position that starts piece, each multiple factor such as shape and size that start piece by starting piece, at this moment, guide slot 1 on the locking closure 2 can be cancelled, accordingly, the directed piece on sub-key and the mother key also can be cancelled.But, still be advisable to keep guide slot from consideration easy to use.

When startup piece 11 has only one, the difference of each lock can only be decided by the shape and size of guide slot 1 with relative position that starts piece 11 and startup piece, at this time, if remove son directed piece on the key, then a bundle key might be opened many locks, therefore, for the sake of security, the number that starts piece preferably is no less than two.

The shape that starts body 10 also can be quadrangular, pentagonal prism or six prisms except that above-mentioned triangular prism, also can be cross as shown in Figure 9, perhaps adopts other complicated more shape, and these all belong to the row of protection of the present utility model.

When this primary and secondary lock is installed, locking closure is separated with lock housing, again locking closure is passed the lockhole of reserving on the material installed, with screw locking closure and lock housing being fixed together then gets final product.

Claims

1, a kind of primary and secondary lock, comprise lock housing, lock core and dead bolt, it is characterized in that: it also comprises locking closure, and keyhole is arranged on the locking closure, and locking closure and lock housing are connected, lock core is positioned at lock housing, one end of lock core is for starting body, and dead bolt is fixed on the other end of lock core, and stopper slot is arranged on the lock-shell lining, also have limited block on the lock core and start piece, limited block is positioned at stopper slot.

2, primary and secondary lock as claimed in claim 1 is characterized in that: on the described locking closure guide slot is arranged.

3, primary and secondary lock as claimed in claim 1 is characterized in that: an end of the fixedly dead bolt of described lock core passes lock housing.

4, as claim 1 or 2 or 3 described primary and secondary locks, it is characterized in that: described startup body is for prismatic.

5, as claim 1 or 2 or 3 described primary and secondary locks, it is characterized in that: described startup body is cross.

6, open the sub-key of the described primary and secondary lock of claim 1, comprise handle and key body, it is characterized in that: there is the startup groove that matches with described startup piece the key body end, has on the key body to make to start the cylindrical cavity that body enters.

7, sub-key as claimed in claim 6, it is characterized in that: described key body has directed piece outward.