CN2093219U

CN2093219U - Spring lock capable of changing key

Info

Publication number: CN2093219U
Application number: CN 91203501
Authority: CN
Inventors: 李流安; 李浩明
Original assignee: LI LIU AN
Current assignee: LI LIU AN
Priority date: 1991-03-07
Filing date: 1991-03-07
Publication date: 1992-01-15

Abstract

The utility model relates to a spring lock capable of changing key, which is formed by a lock body, an internal and an external telescopic lock cores, a marble and a spring. The utility model can conveniently change multiple keys because a control hole is arranged on the lock body, and an internal and external lock core rotation control gear is arranged in the hole. The utility model can prevent from the lock opening method of copying keys, and does not effect the enforcement of the other preventing opening methods, so raises the preventing opening performance of the lock. The utility model has novel and simple structure and strong versatility, can be added on the existing locking heads with low increased cost price, and can be used on locksets.

Description

Spring lock capable of changing key

The utility model relates to a kind of cylinder lock, particularly a kind of used for changeable keys cylinder lock.

The thing that loses key in the daily life often has generation, but after the most unfortunately being obtained key by the robber, treats householder whole family working or goes out, and carries out burglarizing of " convenience ", and its consequence is hardly imaginable.In addition; each regular meeting of family have the guest to visit or short-term between ask nurse; all may use family's door key; treat guest or nurse expire leave after; a kind of sense of insecurity is always arranged at heart, opened by the human copied key in order to prevent lock, people adopt usually and add a lock or heavily renew lock; thereby reduce the probability that is opened, yet such method not only sinks money but also inconvenient.

A kind of ball lock head of convertible spoon money is disclosed in the Chinese patent (patent No. 89213808.4), it adopts the cover lock core structure, with bolt spoon money mapping device is fixed on the outer lock core rear end face, realizes spoon function of money conversion by selecting locking internal cylinder or locking lock body.But there is following shortcoming in it: 1, keyed end is many and disperse, be directed at a spoon money mapping device and account for very large tracts of land, when outer lock core rotated, whole spoon money mapping device also rotated around the transmission chi simultaneously, so need to reserve the mapping device revolution space, be equivalent to tapered end length and greatly increase.2, owing to a spoon money mapping device is fixed on the outer lock core rear end face, often might rotate around the transmission chi, the position can't be determined, so, after this ball lock head and dead bolt device be assembled into practical lockset, conversion spoon money can't be implemented outside the dead bolt device, can only adjust conversion in inside by mounting or dismounting dead bolt device.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of simple and reliable for structure, is easy to implement with existing dead bolt matched with devices, and can be implemented in the used for changeable keys cylinder lock that key is used in the outer conversion rapidly and optionally of lock.

The purpose of this utility model can reach by following measure: the utility model is made up of the internal cylinder and the outer lock core group of lock body, spring, interior pellet shot from a slingshot, outer pellet shot from a slingshot, intussusception, it is characterized in that: be drilled with control hole on the lock body, the outer lock core group of lock body and intussusception is run through in this hole, till in internal cylinder, outer lock core rotation controling mechanism in being equipped with in the hole.Interior outer lock core rotation controling mechanism is made up of locator, driven pellet shot from a slingshot, elastic ball, elastic component, reference column, spring, two pins being contained on the lock body.Elastic component can be made up of spring, guide pin, also can be made by elastic caoutchouc or plastics.Locator has plural locating surface, and the locating surface number of locator equates with its supporting intussusception lock core number.

The utility model adopts the cover lock core structure, and the outer core spoon of a inner core spoon and some moneys is arranged, and when the inner core spoon inserted, pellet shot from a slingshot flushed with the internal cylinder outer rim; When insert certain a outside during the core spoon, pellet shot from a slingshot flushes with corresponding one deck outer lock core outer rim.The structure of its crux is to be drilled with a control hole in the outside of the nearly rear end face of lock body, the outer lock core group of lock body, intussusception is run through in this hole, till in internal cylinder, elastic ball, driven pellet shot from a slingshot and locator are installed in the hole in turn, and under the elastic reaction of elastic ball, be close to mutually, flush in the internal cylinder outer rim, still flush, thereby realize a spoon money mapping function by two of locator (or several) locating surface decision elastic balls in a certain outer outer lock core outer rim.

Fig. 1 inserts the structural behavior figure of first key (inner core spoon) for the utility model;

The transverse sectional view that Fig. 2 allows the inner core spoon to open for the utility model control hole;

The structural behavior figure of Fig. 3 second key (outer core spoon) for the utility model inserts;

The transverse sectional view that Fig. 4 allows outer core spoon to open for the utility model control hole;

Fig. 5 is the longitudinal sectional view of the utility model control hole;

Fig. 6 is the utility model locator holes longitudinal sectional view (its section is perpendicular to control hole);

Fig. 7 is that two kinds of structures of elastic component are implemented figure in the utility model;

Fig. 8 is the supporting installation drawing of the utility model and dead bolt device.

The utility model is described further below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1～Fig. 6, the utility model is made up of internal cylinder 3 and outer lock core group 2, the interior outer lock core rotation controling mechanism 28 etc. of lock body 1, spring 7, interior pellet shot from a slingshot 5, outer pellet shot from a slingshot 6, intussusception.And interior outer lock core rotation controling mechanism 28 is made up of locator 4, driven pellet shot from a slingshot 9, elastic ball 10, elastic component 27, reference column 13, spring 14, the

17,18 that is contained on the lock body 1.

This routine locator 4 adopts a cylinder and a plane as locating surface.

When cylinder works (referring to Fig. 1, Fig. 2), elastic ball 10 is by compression to the outer rim of internal cylinder 3, allow internal cylinder 3 to rotate, driven pellet shot from a slingshot 9 is with outer lock core 2 and lock body 1 locking, at this moment, insert inner core spoon 15 interior pellet shot from a slingshot 5 is flushed with internal cylinder 3 outer rims, can open by lock, other key (comprising outer core spoon 16) then can not.

When work in the plane of locating surface (referring to Fig. 3, Fig. 4), elastic ball 10 is expanded to the outer rim of outer lock core 2, thereby internal cylinder 3 and outer lock core 2 are fused, and outer lock core rotates simultaneously in only allowing.At this moment, insert outer core spoon 16 interior pellet shot from a slingshot 5 is flushed with outer lock core 2 outer rims, can open by lock, other key (comprising inner core spoon 15) then can not.

As Fig. 5, shown in Figure 6, the effect of pin 17 is that 4 of locators are rotated, pin 18 restriction reference columns 13 can only move up and down along locator holes (

17,18 is fixed on the lock body 1), because locator 4 has a pair of V-arrangement contact surface with reference column 13, when the each rotation transformation spoon money of locator 4, the active force that forces reference column 13 to overcome spring 14 moves down, after locator rotates half cycle, reference column 13 grey repositions make locator 4 keep corresponding position.

As shown in Figure 7, elastic ball 10 built-in elastic components 27, elastic component 27 can be made up of spring 11, guide pin 12, also can be made by elastic caoutchouc or plastics 19.

As shown in Figure 8, this cylinder lock mounting method and common door lock are identical, ensconce in the lock body 1 on door 22 circular holes, by connecting of catch 26 and bolt 21 and lock body 1, whole tapered end is fixed on the door 22, and internal cylinder 3 usefulness pins 20 connect transmission chi 24, can cooperate transmission with dead bolt device 23.In addition, according to the supporting needs of dead bolt device 23, the position of control hole 8 and locator 4 can arbitrarily be determined in the significant surface of lock body 1 rear end; During installation, 23 need of dead bolt device drill through a hole bigger slightly than locator 4, allow locator 4 pass, the user can be outside dead bolt device 23 random conversion key easily.

The utility model has following advantage compared to existing technology:

1, same tapered end can have the key of available use more than two or two, and can arbitrarily use a certain key operated tapered end, and make other key not open, be determined a certain key of use can be from the key that tapered end has arbitrarily, repeatedly change.

2, easily supporting with existing bolt device, the conversion key is flexible, and single, easy to manufacture between structure, and cost increases few, but its function is equivalent to increase by one for locking.

Claims

1, a kind of used for changeable keys cylinder lock, internal cylinder 3 and outer lock core group 2 by lock body 1, spring 7, interior pellet shot from a slingshot 5, outer pellet shot from a slingshot 6, intussusception are formed, it is characterized in that: be drilled with control hole 8 on the lock body 1, the outer lock core group 2 of lock body 1 and intussusception is run through in this hole, till in internal cylinder 3, outer lock core rotation controling mechanism 28 in being equipped with in the hole.

2, cylinder lock according to claim 1 is characterized in that: interior outer lock core rotation controling mechanism 28 is made up of locator 4, driven pellet shot from a slingshot 9, elastic ball 10, elastic component 27, reference column 13, spring 14, the pin 17,18 that is contained on the lock body 1.

3, cylinder lock according to claim 1 and 2 is characterized in that: elastic component 27 can be made up of spring 11, guide pin 12, also can be made by elastic caoutchouc or plastics 19.

4, cylinder lock according to claim 1 is characterized in that: locator 4 has plural locating surface, and the locating surface number of locator 4 equates with its supporting intussusception lock core number.