CN2457281Y

CN2457281Y - Lock with multiple section lock core

Info

Publication number: CN2457281Y
Application number: CN 00265951
Authority: CN
Inventors: 萧铭志
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-14
Filing date: 2000-12-14
Publication date: 2001-10-31
Anticipated expiration: 2010-12-14

Abstract

The utility model relates to a lock with a multiple section type lock core. At least two sections of concentric lock cores are arranged in an outer sleeve seat of a locking head. The periphery of the lock core towards the outside of a gate is dented with a section of limiting groove. The inner wall of the outer sleeve seat is opposingly provided with limiting column which is inserted into the limiting groove and is push and butted by a spring. Before the lock core on the outer side end adjacent to the lock is rotated, a lock hole of each lock core is in a mutually staggered shape, and lock holes are communicates only in the center, and thus when the lock is opened by a key, one section of the key needs being inserted. The lock core on the end adjacent to the lock is rotated at an angle, and a second section lock core can be inserted and rotated to open the lock. The theft protection function of the lock can be improved by the utility model.

Description

The tapered end of tool multisection type core

The utility model is a kind of tapered end of tool multisection type core, and a kind of tapered end that needs multisection type to open mainly is provided, to improve anti-theft feature.

In order to improve home safety, the door leaf of every household all is equiped with tapered end, promptly invade with anti-theft after going out with key back locking, but because burglar's the skill of committing theft is become better and better, so the general common people are also more and more higher for the anti-theft feature demand of tapered end, so " multistage lock " promptly arises at the historic moment, so-called multistage lock is actually assembles one by gear in door, tooth bar, connecting rod, at least two multisection type locksets that cooperation one tapered ends such as badge tongue are formed, when constantly rotating tapered end, the badge tongue promptly can be given prominence in regular turn and be equipped on the doorframe and form the effect at locking gate.Yet, no matter be existing multistage lock or other locksets, its tapered end inside all only is provided with a core, the burglar very easily opens, the mode of its unlatching is the special glue (being commonly referred to as magic glue) of perfusion in the lockhole of core, and in the shank of the key that extends outward of lockhole center placement, glue is frozen into the key shape at a terrific speed, and the key handle can be opened core.Therefore, though the design of multistage lock compared to general lockset and Yan Yijia several door holding latch lock close the gate, yet the higher burglar of the skill of unblanking still can open easily, causes the bad and safety that jeopardizes personal property of anti-theft effect.

If general core, the easier unlatching of burglar, as long as it push the lock pearl aside with iron plate, colludes with iron and execute the twist lock heart and can unblank easily.

Therefore, for the lockhole that makes tapered end is difficult for being planted opening, to improve its anti-theft feature, major technique of the present utility model is for providing a kind of tapered end of tool multisection type core, that is in the outer casing seat of tapered end, be provided with the two-phase lock heart at least, the lockhole of two cores also is the shape that interlaces, when the first section core of preceding half section insertion with key rotates an angle later on, again whole key is inserted rotation fully after making the lockhole of first section core and second section core relative, to open lockset, and owing to whole core must be opened in two stages, even so the burglar with glue and iron plate open first section core after, still can't open second section core, the utility model can be made into the core more than two sections still more, so can improve its anti-theft feature.

Below by most preferred embodiment and accompanying drawing the utility model is elaborated, in the accompanying drawing,

Fig. 1 is a partly generalized section of outward appearance of the present utility model.

Fig. 2 is the sectional schematic diagram before the utility model is not opened.

The plane generalized section of Fig. 3 when to be the utility model with key insert first section core.

Fig. 4 is the sectional schematic diagram after first section core of the utility model rotation.

Fig. 5 is the plane generalized section after first section core of the utility model rotation.

As shown in Figure 1, the tapered end of tool multisection type core provided by the utility model, it is to be provided with two sections coaxial cores in the outer casing seat 10 of tapered end 1 at least, be respectively first section core 21 of contiguous tapered end 1 this end of the outside, and second section core 22 of the inner setting towards the gate (is to establish with the two-part core in the middle of this most preferred embodiment, it also can be arranged to three sections), wherein, be concaved with one section on the outer peripheral edges of first section core 21 and place restrictions on groove 210, then be equipped with relatively on the perisporium of outer casing seat 10 so as to penetrating to place restrictions on and place restrictions on post 11 in the groove 210, this places restrictions on post 11 and by 12 ejections of a spring, first section core 21 only can be along placing restrictions on post 11 rotations in placing restrictions on groove 210 scopes.

In addition by shown in the profile of Fig. 2 as can be known, do not inserting before the key, the lockhole 211 of first section core 21 and the lockhole 221 of second section core 22 are to interlace and only have the center to be the state that communicates, and describedly be located at the placing restrictions in the groove 210 of first section core 21 periphery, then be concaved with a contact point 212, this contact point 212 and the angle that opens the beginning position of placing restrictions on groove 210 are identical with the angle that interlaces of the lockhole 221 of the lockhole 211 of first section core 21 and second section core 22.

Shown in Fig. 2,3, when not rotating when half section first section core 21 of insertion before the key 30, the front end ora terminalis of key 30 will be hampered by the end face of second section core 22, can't move on, at this moment, screw key 30 make first section core 21 with place restrictions on groove 210 along outer casing seat 10 place restrictions on post 11 rotation, when waiting to go to contact point 212, the user can also experience and place restrictions on post 11 striking contact points 212.

Shown in Fig. 4,5, at this moment, the lockhole 211 of first section core 21 and the lockhole 221 of second section core 22 are overlapping, key 30 can continue to insert in the lockhole 221 of second section core 22, can continue screw key 30 to open tapered end 1, and in the middle of this above-mentioned most preferred embodiment, be that contact point 212 is the invaginated type design, it can also be convex.

From the above, design of the present utility model makes key could open whole tapered end through two sections rotations, so design is when the burglar pushes the lock pearl aside and cooperates iron to collude group first section core of commentaries on classics with iron plate after, it must repeat identical action again and open second section core, but because core does not connect, so can't enter unlatching.Even when pouring into into key with magic glue, it also only can open first section core, and can't continue to be filled into second section core, and the utility model can be made the 3rd section core still more, more can't open, so the utility model can improve its anti-theft feature really.

Claims

1. the tapered end of a tool multisection type core, tapered end is provided with the outer casing seat of a hollow, it is characterized in that: in outer casing seat, be provided with two sections coaxial cores at least, to be respectively towards this end of the tapered end outside, and inner setting towards the gate, be arranged with one section in the non-core periphery that is provided with towards inside, gate and place restrictions on groove, the outer casing seat inwall then is provided with to insert relatively places restrictions on groove and by the post of placing restrictions on of spring ejection, before the core that the contiguous tapered end of the rotation outside should not held, the lockhole of each core is for interlacing shape and only be the shape that communicates in the center, and the angle that lockhole interlaced of two adjacent cores is the angular range of placing restrictions on groove.

2. the tapered end of tool multisection type core according to claim 1, it is characterized in that: the described radian of placing restrictions on groove of being located at the core outer peripheral edges is about the angle that whole core need rotate, in placing restrictions on groove, be provided with in addition a contact point, this contact point with place restrictions on the angle that lockhole interlaced that angle that groove opens the beginning position promptly is two adjacent cores.

3. the tapered end of tool multisection type core according to claim 2 is characterized in that: contact point is the invaginated type design.

4. the tapered end of tool multisection type core according to claim 2, it is characterized in that: contact point is convex.