CN201428291Y

CN201428291Y - Lock with spiral keyhole

Info

Publication number: CN201428291Y
Application number: CN200920305686XU
Authority: CN
Inventors: 吕一鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-06
Filing date: 2009-07-06
Publication date: 2010-03-24
Anticipated expiration: 2019-07-06

Abstract

A lock with a spiral keyhole comprises a key, a lock cylinder and a lock body, wherein the key consists of a key handle and a key body, the surface of the key body is provided with spiral teeth, the lock cylinder is provided with a keyhole which corresponds to the spiral teeth on the surface of the key body, ball channels are arranged in the lock cylinder and the lock body, and balls and springs are arranged in the ball channels. Positioning structures which are matched with each other are arranged between the key body and the lock cylinder. As the lock cylinder is provided with the keyhole which corresponds to the spiral teeth on the surface of the key body, the steel wire of a master key can be prevented from pulling all balls, thereby effectively improving the performance of technical opening prevention. As the matched positioning structures are arranged between the key body and the keyhole of the lock cylinder, the corresponding relation of the spiral teeth to the keyhole is limited, and the locking points on each spiral tooth have different tooth height, thereby greatly improving the key amount of the lock, and reducing the probability that manufactures produce the same locks.

Description

The tapered end in spiral key hole

Technical field:

The utility model relates to the tapered end in a kind of spiral key hole.

Background technology:

At present, general lock cylinder is equipped with taper of many groups or cylinder-shaped marble in lock core shell and lock core, the lock core of this kind structure, and the robber is easy to by technical opening instruments such as elastic hooks lock be opened.Be head it off, Chinese patent has just proposed " lockset of band spiral lock line " for No. 200420064819.6, and in this technical scheme, lockset comprises three parts, is respectively key part, lock core part, lock body part; Wherein key partly comprises lock handle, key body, and there is the helical tooth of projection on the key body surface; Lock core part inwall is carved with and the corresponding groove of the helical tooth of key body rat, and the lock core part surface has some helixes, and helix is provided with the lock point; Lock body part is provided with and locks a little corresponding boring, establishes one section copper post in the boring, and the copper post touches mutually with an end of spring, and the other end of spring uses the tin shutoff in lock body.The lockset of said structure can improve the performance of anti-technical opening, but have the following disadvantages: the arbitrary helical tooth on the said structure lockset key body all can insert in arbitrary groove of lock core, be that unqualified each helical tooth is to the corresponding relation between keyhole, make that the tartar height of corresponding lock point is consistent on each helical tooth, otherwise the situation that key can't be unblanked will appear, make that the size of key of above-mentioned lockset is low, manufacturer makes identical lock core during fabrication easily.

Summary of the invention:

The purpose of this utility model is: the high tapered end with spiral key hole of performance ideal, size of key that a kind of anti-technical opening is provided.

In order to reach above purpose, the utility model is achieved through the following technical solutions:

The tapered end in a kind of spiral key hole comprises: key, lock core and lock body; Key comprises key handle and key body, and the key body surface is provided with helical tooth, is provided with in the lock core and the corresponding keyhole of key body surface helical tooth, and the pellet shot from a slingshot conduit that is provided with in lock core and the lock body is provided with pellet shot from a slingshot and spring in the pellet shot from a slingshot conduit; It is characterized in that: be provided with the location structure that matches between described key body and lock core keyhole.

Advantage of the present utility model is: because the key body surface is provided with helical tooth, be provided with in the lock core and the corresponding keyhole of key body surface helical tooth, it can make the steel wire of master key can not stir all pellets shot from a slingshot, effectively improves anti-technical opening performance.Owing to be provided with the location structure that matches between key body and lock core keyhole, a certain helical tooth on the key body can only insert in the lock core with its corresponding groove in, promptly define helical tooth to the corresponding relation between keyhole, make the lock point on each helical tooth of the utility model can have different tartar height, thereby improve the size of key of lockset greatly, reduce the possibility that manufacturer makes identical tapered end.

In the utility model, described key body is provided with at least four helical tooths.When the quantity of helical tooth during greater than four, it can further improve the size of key of lockset, reduces the possibility that manufacturer makes identical tapered end.

In the utility model, described detent mechanism comprises: key body be provided with at least one with the helical tooth of the different facewidth of other helical tooth, be provided with the keyhole that matches with helical tooth in the lock core.Detent mechanism adopts said structure, need not to set up other parts, and it is simple in structure, easily manufactured.

In the utility model, the spacing of each pellet shot from a slingshot is different in the described lock core.It can further improve anti-technical opening performance, improves the size of key of lockset simultaneously.

Description of drawings:

Fig. 1 the utility model Key structure schematic diagram.

The lock body structure schematic diagram of Fig. 2 the utility model core with lock.

Fig. 3 the utility model lock core structure schematic diagram.

The specific embodiment:

In conjunction with Fig. 1, Fig. 2, shown in Figure 3: the tapered end with spiral key hole of present embodiment comprises: key, lock core and lock body.Key comprises key 1 and key body 2, and the key body surface is provided with six helical tooths 3.Be provided with in the lock core 4 and the corresponding keyhole 5 of key body surface helical tooth.The pellet shot from a slingshot conduit that is provided with in lock core and the lock body 6 is provided with pellet shot from a slingshot and spring in the pellet shot from a slingshot conduit.Described key body 2 is provided with the location structure that matches with 5 of lock core keyholes.

In the present embodiment, detent mechanism comprises: key body be provided with at least one with the helical tooth 3-1 of the different facewidth of other helical tooth.Be provided with the keyhole Zhao that matches with helical tooth in the lock core and be provided with in the lock core at least one with the spiral alveolar 3-2 of the different facewidth of other teeth groove.

In the present embodiment, the spacing of each pellet shot from a slingshot is different in the lock core.Certainly, adopt identical spacing in the lock core between each pellet shot from a slingshot, also can realize goal of the invention of the present utility model, just anti-technical opening performance is a little less than the tapered end of present embodiment.

Because the key body surface is provided with helical tooth, be provided with in the lock core and the corresponding keyhole of key body surface helical tooth, it can make the steel wire of master key can not stir all pellets shot from a slingshot, effectively improves anti-technical opening performance.Owing to be provided with the location structure that matches between key body and lock core keyhole, define helical tooth to the corresponding relation between keyhole, make the lock point on each helical tooth of the utility model can have different tartar height, thereby improve the size of key of lockset greatly, reduce the possibility that manufacturer makes identical tapered end.When the quantity of helical tooth during greater than four, it can further improve the size of key of lockset, reduces the possibility that manufacturer makes identical tapered end.

Claims

1. the tapered end in a spiral key hole comprises: key, lock core and lock body; Key comprises key handle and key body, and the key body surface is provided with helical tooth, is provided with in the lock core and the corresponding keyhole of key body surface helical tooth, and the pellet shot from a slingshot conduit that is provided with in lock core and the lock body is provided with pellet shot from a slingshot and spring in the pellet shot from a slingshot conduit; It is characterized in that: be provided with the location structure that matches between described key body and lock core keyhole.

2. the tapered end in spiral key according to claim 1 hole is characterized in that: described key body is provided with at least four helical tooths.

3. the tapered end in spiral key according to claim 2 hole is characterized in that: described detent mechanism comprises: key body be provided with at least one with the helical tooth of the different facewidth of other helical tooth, be provided with the keyhole that matches with helical tooth in the lock core.

4. the tapered end in spiral key according to claim 1 hole is characterized in that: the spacing of each pellet shot from a slingshot is different in the described lock core.