CN2232962Y

CN2232962Y - A lock with a changeable lock cylinder

Info

Publication number: CN2232962Y
Application number: CN 95246109
Authority: CN
Inventors: 林鸿仪
Original assignee: Zhou Qichun
Current assignee: Zhou Qichun
Priority date: 1995-10-13
Filing date: 1995-10-13
Publication date: 1996-08-14
Anticipated expiration: 2005-10-13

Abstract

A lock with changeable lock core is composed of a casing, a cover with bosses on its non-hinged side and the corresponding side of casing, and a bolt inserted in said bosses and inserted in said holes for fastening the casing and cover. When the lock is in an unlocking state, the screw can be screwed out, the lock body is opened, and the lock cylinder is adjusted, so that the key is replaced. The unlocking inner structure can be visually observed when the lock cover is opened, and the lock cover is also suitable for being used as a teaching aid.

Description

A lock with a changeable lock cylinder

本实用新型涉及挂锁，特别是一种可改变锁芯以更换钥匙的锁。The utility model relates to a padlock, in particular to a lock which can change a lock core to replace a key.

各种锁在生产厂内一旦确定了锁芯，必须仅以唯一齿形的钥匙与之相匹配。当锁的主人丢失了一个钥匙，或因其他原因认为他人可配制出与自己的钥匙齿形相同的钥匙，该锁就失去了可靠性，而须更换新锁。Once the various lock cylinders are determined in the factory, they must only be matched with unique tooth-shaped keys. When the owner of the lock loses a key, or thinks that others can prepare a key with the same tooth shape as his own key for other reasons, the lock loses its reliability and must be replaced with a new lock.

本实用新型之目的是给出一种可方便地改变锁芯结构的锁，以便于更换不同齿形的钥匙。The purpose of the utility model is to provide a lock that can easily change the structure of the lock cylinder, so as to facilitate the replacement of keys with different tooth shapes.

本实用新型所述的锁，锁壳内装有锁芯，在锁壳上铰接一个盖，盖的非铰接边上有凸台与锁壳相应边上的凸台可交错嵌合，且盖的凸台与锁壳的凸台上有同心的连接孔，连接孔的上端是锁栓的插入孔，孔中可插入一个螺钉将嵌合的锁壳和盖固紧。In the lock described in the utility model, a lock cylinder is installed in the lock case, and a cover is hinged on the lock case. There are bosses on the non-hinged side of the cover and the bosses on the corresponding side of the lock case can be staggered and fitted, and the protrusions of the cover There are concentric connection holes on the boss of the platform and the lock case, the upper end of the connection hole is the insertion hole of the lock bolt, and a screw can be inserted in the hole to fasten the fitted lock case and cover.

当所述的锁处于开锁状态时，即锁栓退出连接孔的上端，可以自锁栓的插入孔插进螺丝刀，将锁壳与锁盖相互嵌合边的固定螺钉旋出，锁壳上铰接的盖就可以自嵌合边掀开，将锁芯暴露，并可很方便地取出锁芯，调整锁芯的弹子和弹簧，从而更换不同齿形的新钥匙与锁芯相匹配。当所述的锁处于锁紧状态，锁栓插在锁壳和盖嵌合连接孔的上端，同时压在固紧螺钉上。即锁紧状态时，固紧螺孔被封闭在锁体中，从外部看不到固紧螺钉，也无法将其拆除。所以在锁紧状态不能将锁盖掀开暴露锁芯。When the lock is in the unlocked state, that is, the lock bolt withdraws from the upper end of the connecting hole, a screwdriver can be inserted from the insertion hole of the lock bolt, and the fixing screw on the side where the lock case and the lock cover are mutually fitted is unscrewed, and the lock case is hinged The cover of the lock can be lifted from the fitting side to expose the lock cylinder, and the lock cylinder can be easily taken out, and the pin and spring of the lock cylinder can be adjusted to replace new keys with different tooth shapes to match the lock cylinder. When the lock is in the locked state, the lock bolt is inserted into the upper end of the lock case and the cover fitting connection hole, and is pressed on the fastening screw at the same time. That is, during the locked state, the fastening screw hole is enclosed in the lock body, and the fastening screw cannot be seen from the outside, and it cannot be removed. Therefore, in the locked state, the lock cover cannot be opened to expose the lock cylinder.

由于所述的锁可以很容易地改变锁芯，锁的主人也就可以较方便地更换不同齿形的钥匙，而不必换整个锁。方便地暴露锁芯，用该锁作为教具，可使学生直观地了解锁的内部结构。Because the lock core can be changed easily, the owner of the lock can easily change keys with different tooth shapes without changing the whole lock. The lock cylinder is conveniently exposed, and the lock can be used as a teaching aid to enable students to intuitively understand the internal structure of the lock.

图1所述锁的锁体立体图The perspective view of the lock body of the lock described in Fig. 1

锁壳2一侧有凸台6，锁壳的另一侧铰接盖3，盖3的非铰接边上有凸台4与锁壳的凸台6可交错嵌合，连接孔5贯穿盖3和锁壳2上的凸台4、6，且连接孔5的顶端为锁栓1的插入孔8。当锁壳2和盖3相互嵌合时，连接孔5中插入固紧螺钉7。There is a boss 6 on one side of the lock case 2, the other side of the lock case is hinged cover 3, there is a boss 4 on the non-hinged side of the cover 3 and the boss 6 of the lock case can be staggeredly fitted, and the connecting hole 5 runs through the cover 3 and The bosses 4 and 6 on the lock case 2 and the top end of the connection hole 5 are the insertion holes 8 of the lock bolt 1 . When the lock case 2 and the cover 3 are engaged with each other, fastening screws 7 are inserted into the connecting holes 5 .

Claims

1. A lock that can change the lock cylinder. The lock cylinder (2) is equipped with a lock cylinder. It is characterized in that a cover (3) is hinged on the lock casing (2), and there is a boss (4) on the non-hinged side of the cover. The boss (6) on the corresponding side of the lock case (2) can be staggeredly fitted, and the boss (4) of the cover (3) and the boss (6) of the lock case (2) have concentric connecting holes ( 5), the upper end of the connection hole (5) is the insertion hole (8) of the lock bolt (1), and the screw (7) can be inserted into the connection hole (5) to fix the fitted lock case (2) and cover (3) tight.